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| 1 |
/*
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* Intel XScale PXA255/270 processor support.
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*
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* Copyright (c) 2006 Openedhand Ltd.
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* Written by Andrzej Zaborowski <balrog@zabor.org>
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*
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* This code is licenced under the GPL.
|
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*/
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#include "sysbus.h" |
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#include "pxa.h" |
| 12 |
#include "sysemu.h" |
| 13 |
#include "pc.h" |
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#include "i2c.h" |
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#include "ssi.h" |
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#include "qemu-timer.h" |
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#include "qemu-char.h" |
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#include "blockdev.h" |
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|
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static struct { |
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target_phys_addr_t io_base; |
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int irqn;
|
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} pxa255_serial[] = {
|
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{ 0x40100000, PXA2XX_PIC_FFUART },
|
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{ 0x40200000, PXA2XX_PIC_BTUART },
|
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{ 0x40700000, PXA2XX_PIC_STUART },
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{ 0x41600000, PXA25X_PIC_HWUART },
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{ 0, 0 }
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}, pxa270_serial[] = {
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{ 0x40100000, PXA2XX_PIC_FFUART },
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{ 0x40200000, PXA2XX_PIC_BTUART },
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{ 0x40700000, PXA2XX_PIC_STUART },
|
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{ 0, 0 }
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}; |
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|
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typedef struct PXASSPDef { |
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target_phys_addr_t io_base; |
| 38 |
int irqn;
|
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} PXASSPDef; |
| 40 |
|
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#if 0
|
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static PXASSPDef pxa250_ssp[] = {
|
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{ 0x41000000, PXA2XX_PIC_SSP },
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{ 0, 0 }
|
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};
|
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#endif
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|
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static PXASSPDef pxa255_ssp[] = {
|
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{ 0x41000000, PXA2XX_PIC_SSP },
|
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{ 0x41400000, PXA25X_PIC_NSSP },
|
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{ 0, 0 }
|
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}; |
| 53 |
|
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#if 0
|
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static PXASSPDef pxa26x_ssp[] = {
|
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{ 0x41000000, PXA2XX_PIC_SSP },
|
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{ 0x41400000, PXA25X_PIC_NSSP },
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{ 0x41500000, PXA26X_PIC_ASSP },
|
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{ 0, 0 }
|
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};
|
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#endif
|
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|
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static PXASSPDef pxa27x_ssp[] = {
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{ 0x41000000, PXA2XX_PIC_SSP },
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{ 0x41700000, PXA27X_PIC_SSP2 },
|
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{ 0x41900000, PXA2XX_PIC_SSP3 },
|
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{ 0, 0 }
|
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}; |
| 69 |
|
| 70 |
#define PMCR 0x00 /* Power Manager Control register */ |
| 71 |
#define PSSR 0x04 /* Power Manager Sleep Status register */ |
| 72 |
#define PSPR 0x08 /* Power Manager Scratch-Pad register */ |
| 73 |
#define PWER 0x0c /* Power Manager Wake-Up Enable register */ |
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#define PRER 0x10 /* Power Manager Rising-Edge Detect Enable register */ |
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#define PFER 0x14 /* Power Manager Falling-Edge Detect Enable register */ |
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#define PEDR 0x18 /* Power Manager Edge-Detect Status register */ |
| 77 |
#define PCFR 0x1c /* Power Manager General Configuration register */ |
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#define PGSR0 0x20 /* Power Manager GPIO Sleep-State register 0 */ |
| 79 |
#define PGSR1 0x24 /* Power Manager GPIO Sleep-State register 1 */ |
| 80 |
#define PGSR2 0x28 /* Power Manager GPIO Sleep-State register 2 */ |
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#define PGSR3 0x2c /* Power Manager GPIO Sleep-State register 3 */ |
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#define RCSR 0x30 /* Reset Controller Status register */ |
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#define PSLR 0x34 /* Power Manager Sleep Configuration register */ |
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#define PTSR 0x38 /* Power Manager Standby Configuration register */ |
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#define PVCR 0x40 /* Power Manager Voltage Change Control register */ |
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#define PUCR 0x4c /* Power Manager USIM Card Control/Status register */ |
| 87 |
#define PKWR 0x50 /* Power Manager Keyboard Wake-Up Enable register */ |
| 88 |
#define PKSR 0x54 /* Power Manager Keyboard Level-Detect Status */ |
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#define PCMD0 0x80 /* Power Manager I2C Command register File 0 */ |
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#define PCMD31 0xfc /* Power Manager I2C Command register File 31 */ |
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|
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static uint32_t pxa2xx_pm_read(void *opaque, target_phys_addr_t addr) |
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{
|
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PXA2xxState *s = (PXA2xxState *) opaque; |
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|
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switch (addr) {
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case PMCR ... PCMD31:
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if (addr & 3) |
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goto fail;
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|
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return s->pm_regs[addr >> 2]; |
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default:
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fail:
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printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
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break;
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} |
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return 0; |
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} |
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|
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static void pxa2xx_pm_write(void *opaque, target_phys_addr_t addr, |
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uint32_t value) |
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{
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PXA2xxState *s = (PXA2xxState *) opaque; |
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|
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switch (addr) {
|
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case PMCR:
|
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s->pm_regs[addr >> 2] &= 0x15 & ~(value & 0x2a); |
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s->pm_regs[addr >> 2] |= value & 0x15; |
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break;
|
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|
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case PSSR: /* Read-clean registers */ |
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case RCSR:
|
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case PKSR:
|
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s->pm_regs[addr >> 2] &= ~value;
|
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break;
|
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|
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default: /* Read-write registers */ |
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if (addr >= PMCR && addr <= PCMD31 && !(addr & 3)) { |
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s->pm_regs[addr >> 2] = value;
|
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break;
|
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} |
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|
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printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
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break;
|
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} |
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} |
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|
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static CPUReadMemoryFunc * const pxa2xx_pm_readfn[] = { |
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pxa2xx_pm_read, |
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pxa2xx_pm_read, |
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pxa2xx_pm_read, |
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}; |
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|
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static CPUWriteMemoryFunc * const pxa2xx_pm_writefn[] = { |
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pxa2xx_pm_write, |
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pxa2xx_pm_write, |
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pxa2xx_pm_write, |
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}; |
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|
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static void pxa2xx_pm_save(QEMUFile *f, void *opaque) |
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{
|
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PXA2xxState *s = (PXA2xxState *) opaque; |
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int i;
|
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|
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for (i = 0; i < 0x40; i ++) |
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qemu_put_be32s(f, &s->pm_regs[i]); |
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} |
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|
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static int pxa2xx_pm_load(QEMUFile *f, void *opaque, int version_id) |
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{
|
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PXA2xxState *s = (PXA2xxState *) opaque; |
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int i;
|
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|
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for (i = 0; i < 0x40; i ++) |
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qemu_get_be32s(f, &s->pm_regs[i]); |
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|
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return 0; |
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} |
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|
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#define CCCR 0x00 /* Core Clock Configuration register */ |
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#define CKEN 0x04 /* Clock Enable register */ |
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#define OSCC 0x08 /* Oscillator Configuration register */ |
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#define CCSR 0x0c /* Core Clock Status register */ |
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|
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static uint32_t pxa2xx_cm_read(void *opaque, target_phys_addr_t addr) |
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{
|
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PXA2xxState *s = (PXA2xxState *) opaque; |
| 178 |
|
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switch (addr) {
|
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case CCCR:
|
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case CKEN:
|
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case OSCC:
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return s->cm_regs[addr >> 2]; |
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|
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case CCSR:
|
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return s->cm_regs[CCCR >> 2] | (3 << 28); |
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|
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default:
|
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printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
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break;
|
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} |
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return 0; |
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} |
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|
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static void pxa2xx_cm_write(void *opaque, target_phys_addr_t addr, |
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uint32_t value) |
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{
|
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PXA2xxState *s = (PXA2xxState *) opaque; |
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|
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switch (addr) {
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case CCCR:
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case CKEN:
|
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s->cm_regs[addr >> 2] = value;
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break;
|
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|
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case OSCC:
|
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s->cm_regs[addr >> 2] &= ~0x6c; |
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s->cm_regs[addr >> 2] |= value & 0x6e; |
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if ((value >> 1) & 1) /* OON */ |
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s->cm_regs[addr >> 2] |= 1 << 0; /* Oscillator is now stable */ |
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break;
|
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|
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default:
|
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printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
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break;
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} |
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} |
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|
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static CPUReadMemoryFunc * const pxa2xx_cm_readfn[] = { |
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pxa2xx_cm_read, |
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pxa2xx_cm_read, |
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pxa2xx_cm_read, |
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}; |
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|
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static CPUWriteMemoryFunc * const pxa2xx_cm_writefn[] = { |
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pxa2xx_cm_write, |
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pxa2xx_cm_write, |
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pxa2xx_cm_write, |
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}; |
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|
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static void pxa2xx_cm_save(QEMUFile *f, void *opaque) |
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{
|
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PXA2xxState *s = (PXA2xxState *) opaque; |
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int i;
|
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|
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for (i = 0; i < 4; i ++) |
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qemu_put_be32s(f, &s->cm_regs[i]); |
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qemu_put_be32s(f, &s->clkcfg); |
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qemu_put_be32s(f, &s->pmnc); |
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} |
| 241 |
|
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static int pxa2xx_cm_load(QEMUFile *f, void *opaque, int version_id) |
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{
|
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PXA2xxState *s = (PXA2xxState *) opaque; |
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int i;
|
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|
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for (i = 0; i < 4; i ++) |
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qemu_get_be32s(f, &s->cm_regs[i]); |
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qemu_get_be32s(f, &s->clkcfg); |
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qemu_get_be32s(f, &s->pmnc); |
| 251 |
|
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return 0; |
| 253 |
} |
| 254 |
|
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static uint32_t pxa2xx_clkpwr_read(void *opaque, int op2, int reg, int crm) |
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{
|
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PXA2xxState *s = (PXA2xxState *) opaque; |
| 258 |
|
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switch (reg) {
|
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case 6: /* Clock Configuration register */ |
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return s->clkcfg;
|
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|
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case 7: /* Power Mode register */ |
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return 0; |
| 265 |
|
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default:
|
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printf("%s: Bad register 0x%x\n", __FUNCTION__, reg);
|
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break;
|
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} |
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return 0; |
| 271 |
} |
| 272 |
|
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static void pxa2xx_clkpwr_write(void *opaque, int op2, int reg, int crm, |
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uint32_t value) |
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{
|
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PXA2xxState *s = (PXA2xxState *) opaque; |
| 277 |
static const char *pwrmode[8] = { |
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"Normal", "Idle", "Deep-idle", "Standby", |
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"Sleep", "reserved (!)", "reserved (!)", "Deep-sleep", |
| 280 |
}; |
| 281 |
|
| 282 |
switch (reg) {
|
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case 6: /* Clock Configuration register */ |
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s->clkcfg = value & 0xf;
|
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if (value & 2) |
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printf("%s: CPU frequency change attempt\n", __FUNCTION__);
|
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break;
|
| 288 |
|
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case 7: /* Power Mode register */ |
| 290 |
if (value & 8) |
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printf("%s: CPU voltage change attempt\n", __FUNCTION__);
|
| 292 |
switch (value & 7) { |
| 293 |
case 0: |
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/* Do nothing */
|
| 295 |
break;
|
| 296 |
|
| 297 |
case 1: |
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/* Idle */
|
| 299 |
if (!(s->cm_regs[CCCR >> 2] & (1 << 31))) { /* CPDIS */ |
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cpu_interrupt(s->env, CPU_INTERRUPT_HALT); |
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break;
|
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} |
| 303 |
/* Fall through. */
|
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|
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case 2: |
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/* Deep-Idle */
|
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cpu_interrupt(s->env, CPU_INTERRUPT_HALT); |
| 308 |
s->pm_regs[RCSR >> 2] |= 0x8; /* Set GPR */ |
| 309 |
goto message;
|
| 310 |
|
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case 3: |
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s->env->uncached_cpsr = |
| 313 |
ARM_CPU_MODE_SVC | CPSR_A | CPSR_F | CPSR_I; |
| 314 |
s->env->cp15.c1_sys = 0;
|
| 315 |
s->env->cp15.c1_coproc = 0;
|
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s->env->cp15.c2_base0 = 0;
|
| 317 |
s->env->cp15.c3 = 0;
|
| 318 |
s->pm_regs[PSSR >> 2] |= 0x8; /* Set STS */ |
| 319 |
s->pm_regs[RCSR >> 2] |= 0x8; /* Set GPR */ |
| 320 |
|
| 321 |
/*
|
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* The scratch-pad register is almost universally used
|
| 323 |
* for storing the return address on suspend. For the
|
| 324 |
* lack of a resuming bootloader, perform a jump
|
| 325 |
* directly to that address.
|
| 326 |
*/
|
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memset(s->env->regs, 0, 4 * 15); |
| 328 |
s->env->regs[15] = s->pm_regs[PSPR >> 2]; |
| 329 |
|
| 330 |
#if 0
|
| 331 |
buffer = 0xe59ff000; /* ldr pc, [pc, #0] */
|
| 332 |
cpu_physical_memory_write(0, &buffer, 4);
|
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buffer = s->pm_regs[PSPR >> 2];
|
| 334 |
cpu_physical_memory_write(8, &buffer, 4);
|
| 335 |
#endif
|
| 336 |
|
| 337 |
/* Suspend */
|
| 338 |
cpu_interrupt(cpu_single_env, CPU_INTERRUPT_HALT); |
| 339 |
|
| 340 |
goto message;
|
| 341 |
|
| 342 |
default:
|
| 343 |
message:
|
| 344 |
printf("%s: machine entered %s mode\n", __FUNCTION__,
|
| 345 |
pwrmode[value & 7]);
|
| 346 |
} |
| 347 |
break;
|
| 348 |
|
| 349 |
default:
|
| 350 |
printf("%s: Bad register 0x%x\n", __FUNCTION__, reg);
|
| 351 |
break;
|
| 352 |
} |
| 353 |
} |
| 354 |
|
| 355 |
/* Performace Monitoring Registers */
|
| 356 |
#define CPPMNC 0 /* Performance Monitor Control register */ |
| 357 |
#define CPCCNT 1 /* Clock Counter register */ |
| 358 |
#define CPINTEN 4 /* Interrupt Enable register */ |
| 359 |
#define CPFLAG 5 /* Overflow Flag register */ |
| 360 |
#define CPEVTSEL 8 /* Event Selection register */ |
| 361 |
|
| 362 |
#define CPPMN0 0 /* Performance Count register 0 */ |
| 363 |
#define CPPMN1 1 /* Performance Count register 1 */ |
| 364 |
#define CPPMN2 2 /* Performance Count register 2 */ |
| 365 |
#define CPPMN3 3 /* Performance Count register 3 */ |
| 366 |
|
| 367 |
static uint32_t pxa2xx_perf_read(void *opaque, int op2, int reg, int crm) |
| 368 |
{
|
| 369 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 370 |
|
| 371 |
switch (reg) {
|
| 372 |
case CPPMNC:
|
| 373 |
return s->pmnc;
|
| 374 |
case CPCCNT:
|
| 375 |
if (s->pmnc & 1) |
| 376 |
return qemu_get_clock(vm_clock);
|
| 377 |
else
|
| 378 |
return 0; |
| 379 |
case CPINTEN:
|
| 380 |
case CPFLAG:
|
| 381 |
case CPEVTSEL:
|
| 382 |
return 0; |
| 383 |
|
| 384 |
default:
|
| 385 |
printf("%s: Bad register 0x%x\n", __FUNCTION__, reg);
|
| 386 |
break;
|
| 387 |
} |
| 388 |
return 0; |
| 389 |
} |
| 390 |
|
| 391 |
static void pxa2xx_perf_write(void *opaque, int op2, int reg, int crm, |
| 392 |
uint32_t value) |
| 393 |
{
|
| 394 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 395 |
|
| 396 |
switch (reg) {
|
| 397 |
case CPPMNC:
|
| 398 |
s->pmnc = value; |
| 399 |
break;
|
| 400 |
|
| 401 |
case CPCCNT:
|
| 402 |
case CPINTEN:
|
| 403 |
case CPFLAG:
|
| 404 |
case CPEVTSEL:
|
| 405 |
break;
|
| 406 |
|
| 407 |
default:
|
| 408 |
printf("%s: Bad register 0x%x\n", __FUNCTION__, reg);
|
| 409 |
break;
|
| 410 |
} |
| 411 |
} |
| 412 |
|
| 413 |
static uint32_t pxa2xx_cp14_read(void *opaque, int op2, int reg, int crm) |
| 414 |
{
|
| 415 |
switch (crm) {
|
| 416 |
case 0: |
| 417 |
return pxa2xx_clkpwr_read(opaque, op2, reg, crm);
|
| 418 |
case 1: |
| 419 |
return pxa2xx_perf_read(opaque, op2, reg, crm);
|
| 420 |
case 2: |
| 421 |
switch (reg) {
|
| 422 |
case CPPMN0:
|
| 423 |
case CPPMN1:
|
| 424 |
case CPPMN2:
|
| 425 |
case CPPMN3:
|
| 426 |
return 0; |
| 427 |
} |
| 428 |
/* Fall through */
|
| 429 |
default:
|
| 430 |
printf("%s: Bad register 0x%x\n", __FUNCTION__, reg);
|
| 431 |
break;
|
| 432 |
} |
| 433 |
return 0; |
| 434 |
} |
| 435 |
|
| 436 |
static void pxa2xx_cp14_write(void *opaque, int op2, int reg, int crm, |
| 437 |
uint32_t value) |
| 438 |
{
|
| 439 |
switch (crm) {
|
| 440 |
case 0: |
| 441 |
pxa2xx_clkpwr_write(opaque, op2, reg, crm, value); |
| 442 |
break;
|
| 443 |
case 1: |
| 444 |
pxa2xx_perf_write(opaque, op2, reg, crm, value); |
| 445 |
break;
|
| 446 |
case 2: |
| 447 |
switch (reg) {
|
| 448 |
case CPPMN0:
|
| 449 |
case CPPMN1:
|
| 450 |
case CPPMN2:
|
| 451 |
case CPPMN3:
|
| 452 |
return;
|
| 453 |
} |
| 454 |
/* Fall through */
|
| 455 |
default:
|
| 456 |
printf("%s: Bad register 0x%x\n", __FUNCTION__, reg);
|
| 457 |
break;
|
| 458 |
} |
| 459 |
} |
| 460 |
|
| 461 |
#define MDCNFG 0x00 /* SDRAM Configuration register */ |
| 462 |
#define MDREFR 0x04 /* SDRAM Refresh Control register */ |
| 463 |
#define MSC0 0x08 /* Static Memory Control register 0 */ |
| 464 |
#define MSC1 0x0c /* Static Memory Control register 1 */ |
| 465 |
#define MSC2 0x10 /* Static Memory Control register 2 */ |
| 466 |
#define MECR 0x14 /* Expansion Memory Bus Config register */ |
| 467 |
#define SXCNFG 0x1c /* Synchronous Static Memory Config register */ |
| 468 |
#define MCMEM0 0x28 /* PC Card Memory Socket 0 Timing register */ |
| 469 |
#define MCMEM1 0x2c /* PC Card Memory Socket 1 Timing register */ |
| 470 |
#define MCATT0 0x30 /* PC Card Attribute Socket 0 register */ |
| 471 |
#define MCATT1 0x34 /* PC Card Attribute Socket 1 register */ |
| 472 |
#define MCIO0 0x38 /* PC Card I/O Socket 0 Timing register */ |
| 473 |
#define MCIO1 0x3c /* PC Card I/O Socket 1 Timing register */ |
| 474 |
#define MDMRS 0x40 /* SDRAM Mode Register Set Config register */ |
| 475 |
#define BOOT_DEF 0x44 /* Boot-time Default Configuration register */ |
| 476 |
#define ARB_CNTL 0x48 /* Arbiter Control register */ |
| 477 |
#define BSCNTR0 0x4c /* Memory Buffer Strength Control register 0 */ |
| 478 |
#define BSCNTR1 0x50 /* Memory Buffer Strength Control register 1 */ |
| 479 |
#define LCDBSCNTR 0x54 /* LCD Buffer Strength Control register */ |
| 480 |
#define MDMRSLP 0x58 /* Low Power SDRAM Mode Set Config register */ |
| 481 |
#define BSCNTR2 0x5c /* Memory Buffer Strength Control register 2 */ |
| 482 |
#define BSCNTR3 0x60 /* Memory Buffer Strength Control register 3 */ |
| 483 |
#define SA1110 0x64 /* SA-1110 Memory Compatibility register */ |
| 484 |
|
| 485 |
static uint32_t pxa2xx_mm_read(void *opaque, target_phys_addr_t addr) |
| 486 |
{
|
| 487 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 488 |
|
| 489 |
switch (addr) {
|
| 490 |
case MDCNFG ... SA1110:
|
| 491 |
if ((addr & 3) == 0) |
| 492 |
return s->mm_regs[addr >> 2]; |
| 493 |
|
| 494 |
default:
|
| 495 |
printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
| 496 |
break;
|
| 497 |
} |
| 498 |
return 0; |
| 499 |
} |
| 500 |
|
| 501 |
static void pxa2xx_mm_write(void *opaque, target_phys_addr_t addr, |
| 502 |
uint32_t value) |
| 503 |
{
|
| 504 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 505 |
|
| 506 |
switch (addr) {
|
| 507 |
case MDCNFG ... SA1110:
|
| 508 |
if ((addr & 3) == 0) { |
| 509 |
s->mm_regs[addr >> 2] = value;
|
| 510 |
break;
|
| 511 |
} |
| 512 |
|
| 513 |
default:
|
| 514 |
printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
| 515 |
break;
|
| 516 |
} |
| 517 |
} |
| 518 |
|
| 519 |
static CPUReadMemoryFunc * const pxa2xx_mm_readfn[] = { |
| 520 |
pxa2xx_mm_read, |
| 521 |
pxa2xx_mm_read, |
| 522 |
pxa2xx_mm_read, |
| 523 |
}; |
| 524 |
|
| 525 |
static CPUWriteMemoryFunc * const pxa2xx_mm_writefn[] = { |
| 526 |
pxa2xx_mm_write, |
| 527 |
pxa2xx_mm_write, |
| 528 |
pxa2xx_mm_write, |
| 529 |
}; |
| 530 |
|
| 531 |
static void pxa2xx_mm_save(QEMUFile *f, void *opaque) |
| 532 |
{
|
| 533 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 534 |
int i;
|
| 535 |
|
| 536 |
for (i = 0; i < 0x1a; i ++) |
| 537 |
qemu_put_be32s(f, &s->mm_regs[i]); |
| 538 |
} |
| 539 |
|
| 540 |
static int pxa2xx_mm_load(QEMUFile *f, void *opaque, int version_id) |
| 541 |
{
|
| 542 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 543 |
int i;
|
| 544 |
|
| 545 |
for (i = 0; i < 0x1a; i ++) |
| 546 |
qemu_get_be32s(f, &s->mm_regs[i]); |
| 547 |
|
| 548 |
return 0; |
| 549 |
} |
| 550 |
|
| 551 |
/* Synchronous Serial Ports */
|
| 552 |
typedef struct { |
| 553 |
SysBusDevice busdev; |
| 554 |
qemu_irq irq; |
| 555 |
int enable;
|
| 556 |
SSIBus *bus; |
| 557 |
|
| 558 |
uint32_t sscr[2];
|
| 559 |
uint32_t sspsp; |
| 560 |
uint32_t ssto; |
| 561 |
uint32_t ssitr; |
| 562 |
uint32_t sssr; |
| 563 |
uint8_t sstsa; |
| 564 |
uint8_t ssrsa; |
| 565 |
uint8_t ssacd; |
| 566 |
|
| 567 |
uint32_t rx_fifo[16];
|
| 568 |
int rx_level;
|
| 569 |
int rx_start;
|
| 570 |
} PXA2xxSSPState; |
| 571 |
|
| 572 |
#define SSCR0 0x00 /* SSP Control register 0 */ |
| 573 |
#define SSCR1 0x04 /* SSP Control register 1 */ |
| 574 |
#define SSSR 0x08 /* SSP Status register */ |
| 575 |
#define SSITR 0x0c /* SSP Interrupt Test register */ |
| 576 |
#define SSDR 0x10 /* SSP Data register */ |
| 577 |
#define SSTO 0x28 /* SSP Time-Out register */ |
| 578 |
#define SSPSP 0x2c /* SSP Programmable Serial Protocol register */ |
| 579 |
#define SSTSA 0x30 /* SSP TX Time Slot Active register */ |
| 580 |
#define SSRSA 0x34 /* SSP RX Time Slot Active register */ |
| 581 |
#define SSTSS 0x38 /* SSP Time Slot Status register */ |
| 582 |
#define SSACD 0x3c /* SSP Audio Clock Divider register */ |
| 583 |
|
| 584 |
/* Bitfields for above registers */
|
| 585 |
#define SSCR0_SPI(x) (((x) & 0x30) == 0x00) |
| 586 |
#define SSCR0_SSP(x) (((x) & 0x30) == 0x10) |
| 587 |
#define SSCR0_UWIRE(x) (((x) & 0x30) == 0x20) |
| 588 |
#define SSCR0_PSP(x) (((x) & 0x30) == 0x30) |
| 589 |
#define SSCR0_SSE (1 << 7) |
| 590 |
#define SSCR0_RIM (1 << 22) |
| 591 |
#define SSCR0_TIM (1 << 23) |
| 592 |
#define SSCR0_MOD (1 << 31) |
| 593 |
#define SSCR0_DSS(x) (((((x) >> 16) & 0x10) | ((x) & 0xf)) + 1) |
| 594 |
#define SSCR1_RIE (1 << 0) |
| 595 |
#define SSCR1_TIE (1 << 1) |
| 596 |
#define SSCR1_LBM (1 << 2) |
| 597 |
#define SSCR1_MWDS (1 << 5) |
| 598 |
#define SSCR1_TFT(x) ((((x) >> 6) & 0xf) + 1) |
| 599 |
#define SSCR1_RFT(x) ((((x) >> 10) & 0xf) + 1) |
| 600 |
#define SSCR1_EFWR (1 << 14) |
| 601 |
#define SSCR1_PINTE (1 << 18) |
| 602 |
#define SSCR1_TINTE (1 << 19) |
| 603 |
#define SSCR1_RSRE (1 << 20) |
| 604 |
#define SSCR1_TSRE (1 << 21) |
| 605 |
#define SSCR1_EBCEI (1 << 29) |
| 606 |
#define SSITR_INT (7 << 5) |
| 607 |
#define SSSR_TNF (1 << 2) |
| 608 |
#define SSSR_RNE (1 << 3) |
| 609 |
#define SSSR_TFS (1 << 5) |
| 610 |
#define SSSR_RFS (1 << 6) |
| 611 |
#define SSSR_ROR (1 << 7) |
| 612 |
#define SSSR_PINT (1 << 18) |
| 613 |
#define SSSR_TINT (1 << 19) |
| 614 |
#define SSSR_EOC (1 << 20) |
| 615 |
#define SSSR_TUR (1 << 21) |
| 616 |
#define SSSR_BCE (1 << 23) |
| 617 |
#define SSSR_RW 0x00bc0080 |
| 618 |
|
| 619 |
static void pxa2xx_ssp_int_update(PXA2xxSSPState *s) |
| 620 |
{
|
| 621 |
int level = 0; |
| 622 |
|
| 623 |
level |= s->ssitr & SSITR_INT; |
| 624 |
level |= (s->sssr & SSSR_BCE) && (s->sscr[1] & SSCR1_EBCEI);
|
| 625 |
level |= (s->sssr & SSSR_TUR) && !(s->sscr[0] & SSCR0_TIM);
|
| 626 |
level |= (s->sssr & SSSR_EOC) && (s->sssr & (SSSR_TINT | SSSR_PINT)); |
| 627 |
level |= (s->sssr & SSSR_TINT) && (s->sscr[1] & SSCR1_TINTE);
|
| 628 |
level |= (s->sssr & SSSR_PINT) && (s->sscr[1] & SSCR1_PINTE);
|
| 629 |
level |= (s->sssr & SSSR_ROR) && !(s->sscr[0] & SSCR0_RIM);
|
| 630 |
level |= (s->sssr & SSSR_RFS) && (s->sscr[1] & SSCR1_RIE);
|
| 631 |
level |= (s->sssr & SSSR_TFS) && (s->sscr[1] & SSCR1_TIE);
|
| 632 |
qemu_set_irq(s->irq, !!level); |
| 633 |
} |
| 634 |
|
| 635 |
static void pxa2xx_ssp_fifo_update(PXA2xxSSPState *s) |
| 636 |
{
|
| 637 |
s->sssr &= ~(0xf << 12); /* Clear RFL */ |
| 638 |
s->sssr &= ~(0xf << 8); /* Clear TFL */ |
| 639 |
s->sssr &= ~SSSR_TNF; |
| 640 |
if (s->enable) {
|
| 641 |
s->sssr |= ((s->rx_level - 1) & 0xf) << 12; |
| 642 |
if (s->rx_level >= SSCR1_RFT(s->sscr[1])) |
| 643 |
s->sssr |= SSSR_RFS; |
| 644 |
else
|
| 645 |
s->sssr &= ~SSSR_RFS; |
| 646 |
if (0 <= SSCR1_TFT(s->sscr[1])) |
| 647 |
s->sssr |= SSSR_TFS; |
| 648 |
else
|
| 649 |
s->sssr &= ~SSSR_TFS; |
| 650 |
if (s->rx_level)
|
| 651 |
s->sssr |= SSSR_RNE; |
| 652 |
else
|
| 653 |
s->sssr &= ~SSSR_RNE; |
| 654 |
s->sssr |= SSSR_TNF; |
| 655 |
} |
| 656 |
|
| 657 |
pxa2xx_ssp_int_update(s); |
| 658 |
} |
| 659 |
|
| 660 |
static uint32_t pxa2xx_ssp_read(void *opaque, target_phys_addr_t addr) |
| 661 |
{
|
| 662 |
PXA2xxSSPState *s = (PXA2xxSSPState *) opaque; |
| 663 |
uint32_t retval; |
| 664 |
|
| 665 |
switch (addr) {
|
| 666 |
case SSCR0:
|
| 667 |
return s->sscr[0]; |
| 668 |
case SSCR1:
|
| 669 |
return s->sscr[1]; |
| 670 |
case SSPSP:
|
| 671 |
return s->sspsp;
|
| 672 |
case SSTO:
|
| 673 |
return s->ssto;
|
| 674 |
case SSITR:
|
| 675 |
return s->ssitr;
|
| 676 |
case SSSR:
|
| 677 |
return s->sssr | s->ssitr;
|
| 678 |
case SSDR:
|
| 679 |
if (!s->enable)
|
| 680 |
return 0xffffffff; |
| 681 |
if (s->rx_level < 1) { |
| 682 |
printf("%s: SSP Rx Underrun\n", __FUNCTION__);
|
| 683 |
return 0xffffffff; |
| 684 |
} |
| 685 |
s->rx_level --; |
| 686 |
retval = s->rx_fifo[s->rx_start ++]; |
| 687 |
s->rx_start &= 0xf;
|
| 688 |
pxa2xx_ssp_fifo_update(s); |
| 689 |
return retval;
|
| 690 |
case SSTSA:
|
| 691 |
return s->sstsa;
|
| 692 |
case SSRSA:
|
| 693 |
return s->ssrsa;
|
| 694 |
case SSTSS:
|
| 695 |
return 0; |
| 696 |
case SSACD:
|
| 697 |
return s->ssacd;
|
| 698 |
default:
|
| 699 |
printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
| 700 |
break;
|
| 701 |
} |
| 702 |
return 0; |
| 703 |
} |
| 704 |
|
| 705 |
static void pxa2xx_ssp_write(void *opaque, target_phys_addr_t addr, |
| 706 |
uint32_t value) |
| 707 |
{
|
| 708 |
PXA2xxSSPState *s = (PXA2xxSSPState *) opaque; |
| 709 |
|
| 710 |
switch (addr) {
|
| 711 |
case SSCR0:
|
| 712 |
s->sscr[0] = value & 0xc7ffffff; |
| 713 |
s->enable = value & SSCR0_SSE; |
| 714 |
if (value & SSCR0_MOD)
|
| 715 |
printf("%s: Attempt to use network mode\n", __FUNCTION__);
|
| 716 |
if (s->enable && SSCR0_DSS(value) < 4) |
| 717 |
printf("%s: Wrong data size: %i bits\n", __FUNCTION__,
|
| 718 |
SSCR0_DSS(value)); |
| 719 |
if (!(value & SSCR0_SSE)) {
|
| 720 |
s->sssr = 0;
|
| 721 |
s->ssitr = 0;
|
| 722 |
s->rx_level = 0;
|
| 723 |
} |
| 724 |
pxa2xx_ssp_fifo_update(s); |
| 725 |
break;
|
| 726 |
|
| 727 |
case SSCR1:
|
| 728 |
s->sscr[1] = value;
|
| 729 |
if (value & (SSCR1_LBM | SSCR1_EFWR))
|
| 730 |
printf("%s: Attempt to use SSP test mode\n", __FUNCTION__);
|
| 731 |
pxa2xx_ssp_fifo_update(s); |
| 732 |
break;
|
| 733 |
|
| 734 |
case SSPSP:
|
| 735 |
s->sspsp = value; |
| 736 |
break;
|
| 737 |
|
| 738 |
case SSTO:
|
| 739 |
s->ssto = value; |
| 740 |
break;
|
| 741 |
|
| 742 |
case SSITR:
|
| 743 |
s->ssitr = value & SSITR_INT; |
| 744 |
pxa2xx_ssp_int_update(s); |
| 745 |
break;
|
| 746 |
|
| 747 |
case SSSR:
|
| 748 |
s->sssr &= ~(value & SSSR_RW); |
| 749 |
pxa2xx_ssp_int_update(s); |
| 750 |
break;
|
| 751 |
|
| 752 |
case SSDR:
|
| 753 |
if (SSCR0_UWIRE(s->sscr[0])) { |
| 754 |
if (s->sscr[1] & SSCR1_MWDS) |
| 755 |
value &= 0xffff;
|
| 756 |
else
|
| 757 |
value &= 0xff;
|
| 758 |
} else
|
| 759 |
/* Note how 32bits overflow does no harm here */
|
| 760 |
value &= (1 << SSCR0_DSS(s->sscr[0])) - 1; |
| 761 |
|
| 762 |
/* Data goes from here to the Tx FIFO and is shifted out from
|
| 763 |
* there directly to the slave, no need to buffer it.
|
| 764 |
*/
|
| 765 |
if (s->enable) {
|
| 766 |
uint32_t readval; |
| 767 |
readval = ssi_transfer(s->bus, value); |
| 768 |
if (s->rx_level < 0x10) { |
| 769 |
s->rx_fifo[(s->rx_start + s->rx_level ++) & 0xf] = readval;
|
| 770 |
} else {
|
| 771 |
s->sssr |= SSSR_ROR; |
| 772 |
} |
| 773 |
} |
| 774 |
pxa2xx_ssp_fifo_update(s); |
| 775 |
break;
|
| 776 |
|
| 777 |
case SSTSA:
|
| 778 |
s->sstsa = value; |
| 779 |
break;
|
| 780 |
|
| 781 |
case SSRSA:
|
| 782 |
s->ssrsa = value; |
| 783 |
break;
|
| 784 |
|
| 785 |
case SSACD:
|
| 786 |
s->ssacd = value; |
| 787 |
break;
|
| 788 |
|
| 789 |
default:
|
| 790 |
printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
| 791 |
break;
|
| 792 |
} |
| 793 |
} |
| 794 |
|
| 795 |
static CPUReadMemoryFunc * const pxa2xx_ssp_readfn[] = { |
| 796 |
pxa2xx_ssp_read, |
| 797 |
pxa2xx_ssp_read, |
| 798 |
pxa2xx_ssp_read, |
| 799 |
}; |
| 800 |
|
| 801 |
static CPUWriteMemoryFunc * const pxa2xx_ssp_writefn[] = { |
| 802 |
pxa2xx_ssp_write, |
| 803 |
pxa2xx_ssp_write, |
| 804 |
pxa2xx_ssp_write, |
| 805 |
}; |
| 806 |
|
| 807 |
static void pxa2xx_ssp_save(QEMUFile *f, void *opaque) |
| 808 |
{
|
| 809 |
PXA2xxSSPState *s = (PXA2xxSSPState *) opaque; |
| 810 |
int i;
|
| 811 |
|
| 812 |
qemu_put_be32(f, s->enable); |
| 813 |
|
| 814 |
qemu_put_be32s(f, &s->sscr[0]);
|
| 815 |
qemu_put_be32s(f, &s->sscr[1]);
|
| 816 |
qemu_put_be32s(f, &s->sspsp); |
| 817 |
qemu_put_be32s(f, &s->ssto); |
| 818 |
qemu_put_be32s(f, &s->ssitr); |
| 819 |
qemu_put_be32s(f, &s->sssr); |
| 820 |
qemu_put_8s(f, &s->sstsa); |
| 821 |
qemu_put_8s(f, &s->ssrsa); |
| 822 |
qemu_put_8s(f, &s->ssacd); |
| 823 |
|
| 824 |
qemu_put_byte(f, s->rx_level); |
| 825 |
for (i = 0; i < s->rx_level; i ++) |
| 826 |
qemu_put_byte(f, s->rx_fifo[(s->rx_start + i) & 0xf]);
|
| 827 |
} |
| 828 |
|
| 829 |
static int pxa2xx_ssp_load(QEMUFile *f, void *opaque, int version_id) |
| 830 |
{
|
| 831 |
PXA2xxSSPState *s = (PXA2xxSSPState *) opaque; |
| 832 |
int i;
|
| 833 |
|
| 834 |
s->enable = qemu_get_be32(f); |
| 835 |
|
| 836 |
qemu_get_be32s(f, &s->sscr[0]);
|
| 837 |
qemu_get_be32s(f, &s->sscr[1]);
|
| 838 |
qemu_get_be32s(f, &s->sspsp); |
| 839 |
qemu_get_be32s(f, &s->ssto); |
| 840 |
qemu_get_be32s(f, &s->ssitr); |
| 841 |
qemu_get_be32s(f, &s->sssr); |
| 842 |
qemu_get_8s(f, &s->sstsa); |
| 843 |
qemu_get_8s(f, &s->ssrsa); |
| 844 |
qemu_get_8s(f, &s->ssacd); |
| 845 |
|
| 846 |
s->rx_level = qemu_get_byte(f); |
| 847 |
s->rx_start = 0;
|
| 848 |
for (i = 0; i < s->rx_level; i ++) |
| 849 |
s->rx_fifo[i] = qemu_get_byte(f); |
| 850 |
|
| 851 |
return 0; |
| 852 |
} |
| 853 |
|
| 854 |
static int pxa2xx_ssp_init(SysBusDevice *dev) |
| 855 |
{
|
| 856 |
int iomemtype;
|
| 857 |
PXA2xxSSPState *s = FROM_SYSBUS(PXA2xxSSPState, dev); |
| 858 |
|
| 859 |
sysbus_init_irq(dev, &s->irq); |
| 860 |
|
| 861 |
iomemtype = cpu_register_io_memory(pxa2xx_ssp_readfn, |
| 862 |
pxa2xx_ssp_writefn, s); |
| 863 |
sysbus_init_mmio(dev, 0x1000, iomemtype);
|
| 864 |
register_savevm(&dev->qdev, "pxa2xx_ssp", -1, 0, |
| 865 |
pxa2xx_ssp_save, pxa2xx_ssp_load, s); |
| 866 |
|
| 867 |
s->bus = ssi_create_bus(&dev->qdev, "ssi");
|
| 868 |
return 0; |
| 869 |
} |
| 870 |
|
| 871 |
/* Real-Time Clock */
|
| 872 |
#define RCNR 0x00 /* RTC Counter register */ |
| 873 |
#define RTAR 0x04 /* RTC Alarm register */ |
| 874 |
#define RTSR 0x08 /* RTC Status register */ |
| 875 |
#define RTTR 0x0c /* RTC Timer Trim register */ |
| 876 |
#define RDCR 0x10 /* RTC Day Counter register */ |
| 877 |
#define RYCR 0x14 /* RTC Year Counter register */ |
| 878 |
#define RDAR1 0x18 /* RTC Wristwatch Day Alarm register 1 */ |
| 879 |
#define RYAR1 0x1c /* RTC Wristwatch Year Alarm register 1 */ |
| 880 |
#define RDAR2 0x20 /* RTC Wristwatch Day Alarm register 2 */ |
| 881 |
#define RYAR2 0x24 /* RTC Wristwatch Year Alarm register 2 */ |
| 882 |
#define SWCR 0x28 /* RTC Stopwatch Counter register */ |
| 883 |
#define SWAR1 0x2c /* RTC Stopwatch Alarm register 1 */ |
| 884 |
#define SWAR2 0x30 /* RTC Stopwatch Alarm register 2 */ |
| 885 |
#define RTCPICR 0x34 /* RTC Periodic Interrupt Counter register */ |
| 886 |
#define PIAR 0x38 /* RTC Periodic Interrupt Alarm register */ |
| 887 |
|
| 888 |
static inline void pxa2xx_rtc_int_update(PXA2xxState *s) |
| 889 |
{
|
| 890 |
qemu_set_irq(s->pic[PXA2XX_PIC_RTCALARM], !!(s->rtsr & 0x2553));
|
| 891 |
} |
| 892 |
|
| 893 |
static void pxa2xx_rtc_hzupdate(PXA2xxState *s) |
| 894 |
{
|
| 895 |
int64_t rt = qemu_get_clock(rt_clock); |
| 896 |
s->last_rcnr += ((rt - s->last_hz) << 15) /
|
| 897 |
(1000 * ((s->rttr & 0xffff) + 1)); |
| 898 |
s->last_rdcr += ((rt - s->last_hz) << 15) /
|
| 899 |
(1000 * ((s->rttr & 0xffff) + 1)); |
| 900 |
s->last_hz = rt; |
| 901 |
} |
| 902 |
|
| 903 |
static void pxa2xx_rtc_swupdate(PXA2xxState *s) |
| 904 |
{
|
| 905 |
int64_t rt = qemu_get_clock(rt_clock); |
| 906 |
if (s->rtsr & (1 << 12)) |
| 907 |
s->last_swcr += (rt - s->last_sw) / 10;
|
| 908 |
s->last_sw = rt; |
| 909 |
} |
| 910 |
|
| 911 |
static void pxa2xx_rtc_piupdate(PXA2xxState *s) |
| 912 |
{
|
| 913 |
int64_t rt = qemu_get_clock(rt_clock); |
| 914 |
if (s->rtsr & (1 << 15)) |
| 915 |
s->last_swcr += rt - s->last_pi; |
| 916 |
s->last_pi = rt; |
| 917 |
} |
| 918 |
|
| 919 |
static inline void pxa2xx_rtc_alarm_update(PXA2xxState *s, |
| 920 |
uint32_t rtsr) |
| 921 |
{
|
| 922 |
if ((rtsr & (1 << 2)) && !(rtsr & (1 << 0))) |
| 923 |
qemu_mod_timer(s->rtc_hz, s->last_hz + |
| 924 |
(((s->rtar - s->last_rcnr) * 1000 *
|
| 925 |
((s->rttr & 0xffff) + 1)) >> 15)); |
| 926 |
else
|
| 927 |
qemu_del_timer(s->rtc_hz); |
| 928 |
|
| 929 |
if ((rtsr & (1 << 5)) && !(rtsr & (1 << 4))) |
| 930 |
qemu_mod_timer(s->rtc_rdal1, s->last_hz + |
| 931 |
(((s->rdar1 - s->last_rdcr) * 1000 *
|
| 932 |
((s->rttr & 0xffff) + 1)) >> 15)); /* TODO: fixup */ |
| 933 |
else
|
| 934 |
qemu_del_timer(s->rtc_rdal1); |
| 935 |
|
| 936 |
if ((rtsr & (1 << 7)) && !(rtsr & (1 << 6))) |
| 937 |
qemu_mod_timer(s->rtc_rdal2, s->last_hz + |
| 938 |
(((s->rdar2 - s->last_rdcr) * 1000 *
|
| 939 |
((s->rttr & 0xffff) + 1)) >> 15)); /* TODO: fixup */ |
| 940 |
else
|
| 941 |
qemu_del_timer(s->rtc_rdal2); |
| 942 |
|
| 943 |
if ((rtsr & 0x1200) == 0x1200 && !(rtsr & (1 << 8))) |
| 944 |
qemu_mod_timer(s->rtc_swal1, s->last_sw + |
| 945 |
(s->swar1 - s->last_swcr) * 10); /* TODO: fixup */ |
| 946 |
else
|
| 947 |
qemu_del_timer(s->rtc_swal1); |
| 948 |
|
| 949 |
if ((rtsr & 0x1800) == 0x1800 && !(rtsr & (1 << 10))) |
| 950 |
qemu_mod_timer(s->rtc_swal2, s->last_sw + |
| 951 |
(s->swar2 - s->last_swcr) * 10); /* TODO: fixup */ |
| 952 |
else
|
| 953 |
qemu_del_timer(s->rtc_swal2); |
| 954 |
|
| 955 |
if ((rtsr & 0xc000) == 0xc000 && !(rtsr & (1 << 13))) |
| 956 |
qemu_mod_timer(s->rtc_pi, s->last_pi + |
| 957 |
(s->piar & 0xffff) - s->last_rtcpicr);
|
| 958 |
else
|
| 959 |
qemu_del_timer(s->rtc_pi); |
| 960 |
} |
| 961 |
|
| 962 |
static inline void pxa2xx_rtc_hz_tick(void *opaque) |
| 963 |
{
|
| 964 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 965 |
s->rtsr |= (1 << 0); |
| 966 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 967 |
pxa2xx_rtc_int_update(s); |
| 968 |
} |
| 969 |
|
| 970 |
static inline void pxa2xx_rtc_rdal1_tick(void *opaque) |
| 971 |
{
|
| 972 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 973 |
s->rtsr |= (1 << 4); |
| 974 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 975 |
pxa2xx_rtc_int_update(s); |
| 976 |
} |
| 977 |
|
| 978 |
static inline void pxa2xx_rtc_rdal2_tick(void *opaque) |
| 979 |
{
|
| 980 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 981 |
s->rtsr |= (1 << 6); |
| 982 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 983 |
pxa2xx_rtc_int_update(s); |
| 984 |
} |
| 985 |
|
| 986 |
static inline void pxa2xx_rtc_swal1_tick(void *opaque) |
| 987 |
{
|
| 988 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 989 |
s->rtsr |= (1 << 8); |
| 990 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 991 |
pxa2xx_rtc_int_update(s); |
| 992 |
} |
| 993 |
|
| 994 |
static inline void pxa2xx_rtc_swal2_tick(void *opaque) |
| 995 |
{
|
| 996 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 997 |
s->rtsr |= (1 << 10); |
| 998 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 999 |
pxa2xx_rtc_int_update(s); |
| 1000 |
} |
| 1001 |
|
| 1002 |
static inline void pxa2xx_rtc_pi_tick(void *opaque) |
| 1003 |
{
|
| 1004 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 1005 |
s->rtsr |= (1 << 13); |
| 1006 |
pxa2xx_rtc_piupdate(s); |
| 1007 |
s->last_rtcpicr = 0;
|
| 1008 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1009 |
pxa2xx_rtc_int_update(s); |
| 1010 |
} |
| 1011 |
|
| 1012 |
static uint32_t pxa2xx_rtc_read(void *opaque, target_phys_addr_t addr) |
| 1013 |
{
|
| 1014 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 1015 |
|
| 1016 |
switch (addr) {
|
| 1017 |
case RTTR:
|
| 1018 |
return s->rttr;
|
| 1019 |
case RTSR:
|
| 1020 |
return s->rtsr;
|
| 1021 |
case RTAR:
|
| 1022 |
return s->rtar;
|
| 1023 |
case RDAR1:
|
| 1024 |
return s->rdar1;
|
| 1025 |
case RDAR2:
|
| 1026 |
return s->rdar2;
|
| 1027 |
case RYAR1:
|
| 1028 |
return s->ryar1;
|
| 1029 |
case RYAR2:
|
| 1030 |
return s->ryar2;
|
| 1031 |
case SWAR1:
|
| 1032 |
return s->swar1;
|
| 1033 |
case SWAR2:
|
| 1034 |
return s->swar2;
|
| 1035 |
case PIAR:
|
| 1036 |
return s->piar;
|
| 1037 |
case RCNR:
|
| 1038 |
return s->last_rcnr + ((qemu_get_clock(rt_clock) - s->last_hz) << 15) / |
| 1039 |
(1000 * ((s->rttr & 0xffff) + 1)); |
| 1040 |
case RDCR:
|
| 1041 |
return s->last_rdcr + ((qemu_get_clock(rt_clock) - s->last_hz) << 15) / |
| 1042 |
(1000 * ((s->rttr & 0xffff) + 1)); |
| 1043 |
case RYCR:
|
| 1044 |
return s->last_rycr;
|
| 1045 |
case SWCR:
|
| 1046 |
if (s->rtsr & (1 << 12)) |
| 1047 |
return s->last_swcr + (qemu_get_clock(rt_clock) - s->last_sw) / 10; |
| 1048 |
else
|
| 1049 |
return s->last_swcr;
|
| 1050 |
default:
|
| 1051 |
printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
| 1052 |
break;
|
| 1053 |
} |
| 1054 |
return 0; |
| 1055 |
} |
| 1056 |
|
| 1057 |
static void pxa2xx_rtc_write(void *opaque, target_phys_addr_t addr, |
| 1058 |
uint32_t value) |
| 1059 |
{
|
| 1060 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 1061 |
|
| 1062 |
switch (addr) {
|
| 1063 |
case RTTR:
|
| 1064 |
if (!(s->rttr & (1 << 31))) { |
| 1065 |
pxa2xx_rtc_hzupdate(s); |
| 1066 |
s->rttr = value; |
| 1067 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1068 |
} |
| 1069 |
break;
|
| 1070 |
|
| 1071 |
case RTSR:
|
| 1072 |
if ((s->rtsr ^ value) & (1 << 15)) |
| 1073 |
pxa2xx_rtc_piupdate(s); |
| 1074 |
|
| 1075 |
if ((s->rtsr ^ value) & (1 << 12)) |
| 1076 |
pxa2xx_rtc_swupdate(s); |
| 1077 |
|
| 1078 |
if (((s->rtsr ^ value) & 0x4aac) | (value & ~0xdaac)) |
| 1079 |
pxa2xx_rtc_alarm_update(s, value); |
| 1080 |
|
| 1081 |
s->rtsr = (value & 0xdaac) | (s->rtsr & ~(value & ~0xdaac)); |
| 1082 |
pxa2xx_rtc_int_update(s); |
| 1083 |
break;
|
| 1084 |
|
| 1085 |
case RTAR:
|
| 1086 |
s->rtar = value; |
| 1087 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1088 |
break;
|
| 1089 |
|
| 1090 |
case RDAR1:
|
| 1091 |
s->rdar1 = value; |
| 1092 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1093 |
break;
|
| 1094 |
|
| 1095 |
case RDAR2:
|
| 1096 |
s->rdar2 = value; |
| 1097 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1098 |
break;
|
| 1099 |
|
| 1100 |
case RYAR1:
|
| 1101 |
s->ryar1 = value; |
| 1102 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1103 |
break;
|
| 1104 |
|
| 1105 |
case RYAR2:
|
| 1106 |
s->ryar2 = value; |
| 1107 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1108 |
break;
|
| 1109 |
|
| 1110 |
case SWAR1:
|
| 1111 |
pxa2xx_rtc_swupdate(s); |
| 1112 |
s->swar1 = value; |
| 1113 |
s->last_swcr = 0;
|
| 1114 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1115 |
break;
|
| 1116 |
|
| 1117 |
case SWAR2:
|
| 1118 |
s->swar2 = value; |
| 1119 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1120 |
break;
|
| 1121 |
|
| 1122 |
case PIAR:
|
| 1123 |
s->piar = value; |
| 1124 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1125 |
break;
|
| 1126 |
|
| 1127 |
case RCNR:
|
| 1128 |
pxa2xx_rtc_hzupdate(s); |
| 1129 |
s->last_rcnr = value; |
| 1130 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1131 |
break;
|
| 1132 |
|
| 1133 |
case RDCR:
|
| 1134 |
pxa2xx_rtc_hzupdate(s); |
| 1135 |
s->last_rdcr = value; |
| 1136 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1137 |
break;
|
| 1138 |
|
| 1139 |
case RYCR:
|
| 1140 |
s->last_rycr = value; |
| 1141 |
break;
|
| 1142 |
|
| 1143 |
case SWCR:
|
| 1144 |
pxa2xx_rtc_swupdate(s); |
| 1145 |
s->last_swcr = value; |
| 1146 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1147 |
break;
|
| 1148 |
|
| 1149 |
case RTCPICR:
|
| 1150 |
pxa2xx_rtc_piupdate(s); |
| 1151 |
s->last_rtcpicr = value & 0xffff;
|
| 1152 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1153 |
break;
|
| 1154 |
|
| 1155 |
default:
|
| 1156 |
printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
| 1157 |
} |
| 1158 |
} |
| 1159 |
|
| 1160 |
static CPUReadMemoryFunc * const pxa2xx_rtc_readfn[] = { |
| 1161 |
pxa2xx_rtc_read, |
| 1162 |
pxa2xx_rtc_read, |
| 1163 |
pxa2xx_rtc_read, |
| 1164 |
}; |
| 1165 |
|
| 1166 |
static CPUWriteMemoryFunc * const pxa2xx_rtc_writefn[] = { |
| 1167 |
pxa2xx_rtc_write, |
| 1168 |
pxa2xx_rtc_write, |
| 1169 |
pxa2xx_rtc_write, |
| 1170 |
}; |
| 1171 |
|
| 1172 |
static void pxa2xx_rtc_init(PXA2xxState *s) |
| 1173 |
{
|
| 1174 |
struct tm tm;
|
| 1175 |
int wom;
|
| 1176 |
|
| 1177 |
s->rttr = 0x7fff;
|
| 1178 |
s->rtsr = 0;
|
| 1179 |
|
| 1180 |
qemu_get_timedate(&tm, 0);
|
| 1181 |
wom = ((tm.tm_mday - 1) / 7) + 1; |
| 1182 |
|
| 1183 |
s->last_rcnr = (uint32_t) mktimegm(&tm); |
| 1184 |
s->last_rdcr = (wom << 20) | ((tm.tm_wday + 1) << 17) | |
| 1185 |
(tm.tm_hour << 12) | (tm.tm_min << 6) | tm.tm_sec; |
| 1186 |
s->last_rycr = ((tm.tm_year + 1900) << 9) | |
| 1187 |
((tm.tm_mon + 1) << 5) | tm.tm_mday; |
| 1188 |
s->last_swcr = (tm.tm_hour << 19) |
|
| 1189 |
(tm.tm_min << 13) | (tm.tm_sec << 7); |
| 1190 |
s->last_rtcpicr = 0;
|
| 1191 |
s->last_hz = s->last_sw = s->last_pi = qemu_get_clock(rt_clock); |
| 1192 |
|
| 1193 |
s->rtc_hz = qemu_new_timer(rt_clock, pxa2xx_rtc_hz_tick, s); |
| 1194 |
s->rtc_rdal1 = qemu_new_timer(rt_clock, pxa2xx_rtc_rdal1_tick, s); |
| 1195 |
s->rtc_rdal2 = qemu_new_timer(rt_clock, pxa2xx_rtc_rdal2_tick, s); |
| 1196 |
s->rtc_swal1 = qemu_new_timer(rt_clock, pxa2xx_rtc_swal1_tick, s); |
| 1197 |
s->rtc_swal2 = qemu_new_timer(rt_clock, pxa2xx_rtc_swal2_tick, s); |
| 1198 |
s->rtc_pi = qemu_new_timer(rt_clock, pxa2xx_rtc_pi_tick, s); |
| 1199 |
} |
| 1200 |
|
| 1201 |
static void pxa2xx_rtc_save(QEMUFile *f, void *opaque) |
| 1202 |
{
|
| 1203 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 1204 |
|
| 1205 |
pxa2xx_rtc_hzupdate(s); |
| 1206 |
pxa2xx_rtc_piupdate(s); |
| 1207 |
pxa2xx_rtc_swupdate(s); |
| 1208 |
|
| 1209 |
qemu_put_be32s(f, &s->rttr); |
| 1210 |
qemu_put_be32s(f, &s->rtsr); |
| 1211 |
qemu_put_be32s(f, &s->rtar); |
| 1212 |
qemu_put_be32s(f, &s->rdar1); |
| 1213 |
qemu_put_be32s(f, &s->rdar2); |
| 1214 |
qemu_put_be32s(f, &s->ryar1); |
| 1215 |
qemu_put_be32s(f, &s->ryar2); |
| 1216 |
qemu_put_be32s(f, &s->swar1); |
| 1217 |
qemu_put_be32s(f, &s->swar2); |
| 1218 |
qemu_put_be32s(f, &s->piar); |
| 1219 |
qemu_put_be32s(f, &s->last_rcnr); |
| 1220 |
qemu_put_be32s(f, &s->last_rdcr); |
| 1221 |
qemu_put_be32s(f, &s->last_rycr); |
| 1222 |
qemu_put_be32s(f, &s->last_swcr); |
| 1223 |
qemu_put_be32s(f, &s->last_rtcpicr); |
| 1224 |
qemu_put_sbe64s(f, &s->last_hz); |
| 1225 |
qemu_put_sbe64s(f, &s->last_sw); |
| 1226 |
qemu_put_sbe64s(f, &s->last_pi); |
| 1227 |
} |
| 1228 |
|
| 1229 |
static int pxa2xx_rtc_load(QEMUFile *f, void *opaque, int version_id) |
| 1230 |
{
|
| 1231 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 1232 |
|
| 1233 |
qemu_get_be32s(f, &s->rttr); |
| 1234 |
qemu_get_be32s(f, &s->rtsr); |
| 1235 |
qemu_get_be32s(f, &s->rtar); |
| 1236 |
qemu_get_be32s(f, &s->rdar1); |
| 1237 |
qemu_get_be32s(f, &s->rdar2); |
| 1238 |
qemu_get_be32s(f, &s->ryar1); |
| 1239 |
qemu_get_be32s(f, &s->ryar2); |
| 1240 |
qemu_get_be32s(f, &s->swar1); |
| 1241 |
qemu_get_be32s(f, &s->swar2); |
| 1242 |
qemu_get_be32s(f, &s->piar); |
| 1243 |
qemu_get_be32s(f, &s->last_rcnr); |
| 1244 |
qemu_get_be32s(f, &s->last_rdcr); |
| 1245 |
qemu_get_be32s(f, &s->last_rycr); |
| 1246 |
qemu_get_be32s(f, &s->last_swcr); |
| 1247 |
qemu_get_be32s(f, &s->last_rtcpicr); |
| 1248 |
qemu_get_sbe64s(f, &s->last_hz); |
| 1249 |
qemu_get_sbe64s(f, &s->last_sw); |
| 1250 |
qemu_get_sbe64s(f, &s->last_pi); |
| 1251 |
|
| 1252 |
pxa2xx_rtc_alarm_update(s, s->rtsr); |
| 1253 |
|
| 1254 |
return 0; |
| 1255 |
} |
| 1256 |
|
| 1257 |
/* I2C Interface */
|
| 1258 |
typedef struct { |
| 1259 |
i2c_slave i2c; |
| 1260 |
PXA2xxI2CState *host; |
| 1261 |
} PXA2xxI2CSlaveState; |
| 1262 |
|
| 1263 |
struct PXA2xxI2CState {
|
| 1264 |
PXA2xxI2CSlaveState *slave; |
| 1265 |
i2c_bus *bus; |
| 1266 |
qemu_irq irq; |
| 1267 |
target_phys_addr_t offset; |
| 1268 |
|
| 1269 |
uint16_t control; |
| 1270 |
uint16_t status; |
| 1271 |
uint8_t ibmr; |
| 1272 |
uint8_t data; |
| 1273 |
}; |
| 1274 |
|
| 1275 |
#define IBMR 0x80 /* I2C Bus Monitor register */ |
| 1276 |
#define IDBR 0x88 /* I2C Data Buffer register */ |
| 1277 |
#define ICR 0x90 /* I2C Control register */ |
| 1278 |
#define ISR 0x98 /* I2C Status register */ |
| 1279 |
#define ISAR 0xa0 /* I2C Slave Address register */ |
| 1280 |
|
| 1281 |
static void pxa2xx_i2c_update(PXA2xxI2CState *s) |
| 1282 |
{
|
| 1283 |
uint16_t level = 0;
|
| 1284 |
level |= s->status & s->control & (1 << 10); /* BED */ |
| 1285 |
level |= (s->status & (1 << 7)) && (s->control & (1 << 9)); /* IRF */ |
| 1286 |
level |= (s->status & (1 << 6)) && (s->control & (1 << 8)); /* ITE */ |
| 1287 |
level |= s->status & (1 << 9); /* SAD */ |
| 1288 |
qemu_set_irq(s->irq, !!level); |
| 1289 |
} |
| 1290 |
|
| 1291 |
/* These are only stubs now. */
|
| 1292 |
static void pxa2xx_i2c_event(i2c_slave *i2c, enum i2c_event event) |
| 1293 |
{
|
| 1294 |
PXA2xxI2CSlaveState *slave = FROM_I2C_SLAVE(PXA2xxI2CSlaveState, i2c); |
| 1295 |
PXA2xxI2CState *s = slave->host; |
| 1296 |
|
| 1297 |
switch (event) {
|
| 1298 |
case I2C_START_SEND:
|
| 1299 |
s->status |= (1 << 9); /* set SAD */ |
| 1300 |
s->status &= ~(1 << 0); /* clear RWM */ |
| 1301 |
break;
|
| 1302 |
case I2C_START_RECV:
|
| 1303 |
s->status |= (1 << 9); /* set SAD */ |
| 1304 |
s->status |= 1 << 0; /* set RWM */ |
| 1305 |
break;
|
| 1306 |
case I2C_FINISH:
|
| 1307 |
s->status |= (1 << 4); /* set SSD */ |
| 1308 |
break;
|
| 1309 |
case I2C_NACK:
|
| 1310 |
s->status |= 1 << 1; /* set ACKNAK */ |
| 1311 |
break;
|
| 1312 |
} |
| 1313 |
pxa2xx_i2c_update(s); |
| 1314 |
} |
| 1315 |
|
| 1316 |
static int pxa2xx_i2c_rx(i2c_slave *i2c) |
| 1317 |
{
|
| 1318 |
PXA2xxI2CSlaveState *slave = FROM_I2C_SLAVE(PXA2xxI2CSlaveState, i2c); |
| 1319 |
PXA2xxI2CState *s = slave->host; |
| 1320 |
if ((s->control & (1 << 14)) || !(s->control & (1 << 6))) |
| 1321 |
return 0; |
| 1322 |
|
| 1323 |
if (s->status & (1 << 0)) { /* RWM */ |
| 1324 |
s->status |= 1 << 6; /* set ITE */ |
| 1325 |
} |
| 1326 |
pxa2xx_i2c_update(s); |
| 1327 |
|
| 1328 |
return s->data;
|
| 1329 |
} |
| 1330 |
|
| 1331 |
static int pxa2xx_i2c_tx(i2c_slave *i2c, uint8_t data) |
| 1332 |
{
|
| 1333 |
PXA2xxI2CSlaveState *slave = FROM_I2C_SLAVE(PXA2xxI2CSlaveState, i2c); |
| 1334 |
PXA2xxI2CState *s = slave->host; |
| 1335 |
if ((s->control & (1 << 14)) || !(s->control & (1 << 6))) |
| 1336 |
return 1; |
| 1337 |
|
| 1338 |
if (!(s->status & (1 << 0))) { /* RWM */ |
| 1339 |
s->status |= 1 << 7; /* set IRF */ |
| 1340 |
s->data = data; |
| 1341 |
} |
| 1342 |
pxa2xx_i2c_update(s); |
| 1343 |
|
| 1344 |
return 1; |
| 1345 |
} |
| 1346 |
|
| 1347 |
static uint32_t pxa2xx_i2c_read(void *opaque, target_phys_addr_t addr) |
| 1348 |
{
|
| 1349 |
PXA2xxI2CState *s = (PXA2xxI2CState *) opaque; |
| 1350 |
|
| 1351 |
addr -= s->offset; |
| 1352 |
switch (addr) {
|
| 1353 |
case ICR:
|
| 1354 |
return s->control;
|
| 1355 |
case ISR:
|
| 1356 |
return s->status | (i2c_bus_busy(s->bus) << 2); |
| 1357 |
case ISAR:
|
| 1358 |
return s->slave->i2c.address;
|
| 1359 |
case IDBR:
|
| 1360 |
return s->data;
|
| 1361 |
case IBMR:
|
| 1362 |
if (s->status & (1 << 2)) |
| 1363 |
s->ibmr ^= 3; /* Fake SCL and SDA pin changes */ |
| 1364 |
else
|
| 1365 |
s->ibmr = 0;
|
| 1366 |
return s->ibmr;
|
| 1367 |
default:
|
| 1368 |
printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
| 1369 |
break;
|
| 1370 |
} |
| 1371 |
return 0; |
| 1372 |
} |
| 1373 |
|
| 1374 |
static void pxa2xx_i2c_write(void *opaque, target_phys_addr_t addr, |
| 1375 |
uint32_t value) |
| 1376 |
{
|
| 1377 |
PXA2xxI2CState *s = (PXA2xxI2CState *) opaque; |
| 1378 |
int ack;
|
| 1379 |
|
| 1380 |
addr -= s->offset; |
| 1381 |
switch (addr) {
|
| 1382 |
case ICR:
|
| 1383 |
s->control = value & 0xfff7;
|
| 1384 |
if ((value & (1 << 3)) && (value & (1 << 6))) { /* TB and IUE */ |
| 1385 |
/* TODO: slave mode */
|
| 1386 |
if (value & (1 << 0)) { /* START condition */ |
| 1387 |
if (s->data & 1) |
| 1388 |
s->status |= 1 << 0; /* set RWM */ |
| 1389 |
else
|
| 1390 |
s->status &= ~(1 << 0); /* clear RWM */ |
| 1391 |
ack = !i2c_start_transfer(s->bus, s->data >> 1, s->data & 1); |
| 1392 |
} else {
|
| 1393 |
if (s->status & (1 << 0)) { /* RWM */ |
| 1394 |
s->data = i2c_recv(s->bus); |
| 1395 |
if (value & (1 << 2)) /* ACKNAK */ |
| 1396 |
i2c_nack(s->bus); |
| 1397 |
ack = 1;
|
| 1398 |
} else
|
| 1399 |
ack = !i2c_send(s->bus, s->data); |
| 1400 |
} |
| 1401 |
|
| 1402 |
if (value & (1 << 1)) /* STOP condition */ |
| 1403 |
i2c_end_transfer(s->bus); |
| 1404 |
|
| 1405 |
if (ack) {
|
| 1406 |
if (value & (1 << 0)) /* START condition */ |
| 1407 |
s->status |= 1 << 6; /* set ITE */ |
| 1408 |
else
|
| 1409 |
if (s->status & (1 << 0)) /* RWM */ |
| 1410 |
s->status |= 1 << 7; /* set IRF */ |
| 1411 |
else
|
| 1412 |
s->status |= 1 << 6; /* set ITE */ |
| 1413 |
s->status &= ~(1 << 1); /* clear ACKNAK */ |
| 1414 |
} else {
|
| 1415 |
s->status |= 1 << 6; /* set ITE */ |
| 1416 |
s->status |= 1 << 10; /* set BED */ |
| 1417 |
s->status |= 1 << 1; /* set ACKNAK */ |
| 1418 |
} |
| 1419 |
} |
| 1420 |
if (!(value & (1 << 3)) && (value & (1 << 6))) /* !TB and IUE */ |
| 1421 |
if (value & (1 << 4)) /* MA */ |
| 1422 |
i2c_end_transfer(s->bus); |
| 1423 |
pxa2xx_i2c_update(s); |
| 1424 |
break;
|
| 1425 |
|
| 1426 |
case ISR:
|
| 1427 |
s->status &= ~(value & 0x07f0);
|
| 1428 |
pxa2xx_i2c_update(s); |
| 1429 |
break;
|
| 1430 |
|
| 1431 |
case ISAR:
|
| 1432 |
i2c_set_slave_address(&s->slave->i2c, value & 0x7f);
|
| 1433 |
break;
|
| 1434 |
|
| 1435 |
case IDBR:
|
| 1436 |
s->data = value & 0xff;
|
| 1437 |
break;
|
| 1438 |
|
| 1439 |
default:
|
| 1440 |
printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
| 1441 |
} |
| 1442 |
} |
| 1443 |
|
| 1444 |
static CPUReadMemoryFunc * const pxa2xx_i2c_readfn[] = { |
| 1445 |
pxa2xx_i2c_read, |
| 1446 |
pxa2xx_i2c_read, |
| 1447 |
pxa2xx_i2c_read, |
| 1448 |
}; |
| 1449 |
|
| 1450 |
static CPUWriteMemoryFunc * const pxa2xx_i2c_writefn[] = { |
| 1451 |
pxa2xx_i2c_write, |
| 1452 |
pxa2xx_i2c_write, |
| 1453 |
pxa2xx_i2c_write, |
| 1454 |
}; |
| 1455 |
|
| 1456 |
static const VMStateDescription vmstate_pxa2xx_i2c_slave = { |
| 1457 |
.name = "pxa2xx_i2c_slave",
|
| 1458 |
.version_id = 1,
|
| 1459 |
.minimum_version_id = 1,
|
| 1460 |
.minimum_version_id_old = 1,
|
| 1461 |
.fields = (VMStateField []) {
|
| 1462 |
VMSTATE_I2C_SLAVE(i2c, PXA2xxI2CSlaveState), |
| 1463 |
VMSTATE_END_OF_LIST() |
| 1464 |
} |
| 1465 |
}; |
| 1466 |
|
| 1467 |
static const VMStateDescription vmstate_pxa2xx_i2c = { |
| 1468 |
.name = "pxa2xx_i2c",
|
| 1469 |
.version_id = 1,
|
| 1470 |
.minimum_version_id = 1,
|
| 1471 |
.minimum_version_id_old = 1,
|
| 1472 |
.fields = (VMStateField []) {
|
| 1473 |
VMSTATE_UINT16(control, PXA2xxI2CState), |
| 1474 |
VMSTATE_UINT16(status, PXA2xxI2CState), |
| 1475 |
VMSTATE_UINT8(ibmr, PXA2xxI2CState), |
| 1476 |
VMSTATE_UINT8(data, PXA2xxI2CState), |
| 1477 |
VMSTATE_STRUCT_POINTER(slave, PXA2xxI2CState, |
| 1478 |
vmstate_pxa2xx_i2c, PXA2xxI2CSlaveState *), |
| 1479 |
VMSTATE_END_OF_LIST() |
| 1480 |
} |
| 1481 |
}; |
| 1482 |
|
| 1483 |
static int pxa2xx_i2c_slave_init(i2c_slave *i2c) |
| 1484 |
{
|
| 1485 |
/* Nothing to do. */
|
| 1486 |
return 0; |
| 1487 |
} |
| 1488 |
|
| 1489 |
static I2CSlaveInfo pxa2xx_i2c_slave_info = {
|
| 1490 |
.qdev.name = "pxa2xx-i2c-slave",
|
| 1491 |
.qdev.size = sizeof(PXA2xxI2CSlaveState),
|
| 1492 |
.init = pxa2xx_i2c_slave_init, |
| 1493 |
.event = pxa2xx_i2c_event, |
| 1494 |
.recv = pxa2xx_i2c_rx, |
| 1495 |
.send = pxa2xx_i2c_tx |
| 1496 |
}; |
| 1497 |
|
| 1498 |
PXA2xxI2CState *pxa2xx_i2c_init(target_phys_addr_t base, |
| 1499 |
qemu_irq irq, uint32_t region_size) |
| 1500 |
{
|
| 1501 |
int iomemtype;
|
| 1502 |
DeviceState *dev; |
| 1503 |
PXA2xxI2CState *s = qemu_mallocz(sizeof(PXA2xxI2CState));
|
| 1504 |
|
| 1505 |
/* FIXME: Should the slave device really be on a separate bus? */
|
| 1506 |
dev = i2c_create_slave(i2c_init_bus(NULL, "dummy"), "pxa2xx-i2c-slave", 0); |
| 1507 |
s->slave = FROM_I2C_SLAVE(PXA2xxI2CSlaveState, I2C_SLAVE_FROM_QDEV(dev)); |
| 1508 |
s->slave->host = s; |
| 1509 |
|
| 1510 |
s->irq = irq; |
| 1511 |
s->bus = i2c_init_bus(NULL, "i2c"); |
| 1512 |
s->offset = base - (base & (~region_size) & TARGET_PAGE_MASK); |
| 1513 |
|
| 1514 |
iomemtype = cpu_register_io_memory(pxa2xx_i2c_readfn, |
| 1515 |
pxa2xx_i2c_writefn, s); |
| 1516 |
cpu_register_physical_memory(base & ~region_size, |
| 1517 |
region_size + 1, iomemtype);
|
| 1518 |
|
| 1519 |
vmstate_register(NULL, base, &vmstate_pxa2xx_i2c, s);
|
| 1520 |
|
| 1521 |
return s;
|
| 1522 |
} |
| 1523 |
|
| 1524 |
i2c_bus *pxa2xx_i2c_bus(PXA2xxI2CState *s) |
| 1525 |
{
|
| 1526 |
return s->bus;
|
| 1527 |
} |
| 1528 |
|
| 1529 |
/* PXA Inter-IC Sound Controller */
|
| 1530 |
static void pxa2xx_i2s_reset(PXA2xxI2SState *i2s) |
| 1531 |
{
|
| 1532 |
i2s->rx_len = 0;
|
| 1533 |
i2s->tx_len = 0;
|
| 1534 |
i2s->fifo_len = 0;
|
| 1535 |
i2s->clk = 0x1a;
|
| 1536 |
i2s->control[0] = 0x00; |
| 1537 |
i2s->control[1] = 0x00; |
| 1538 |
i2s->status = 0x00;
|
| 1539 |
i2s->mask = 0x00;
|
| 1540 |
} |
| 1541 |
|
| 1542 |
#define SACR_TFTH(val) ((val >> 8) & 0xf) |
| 1543 |
#define SACR_RFTH(val) ((val >> 12) & 0xf) |
| 1544 |
#define SACR_DREC(val) (val & (1 << 3)) |
| 1545 |
#define SACR_DPRL(val) (val & (1 << 4)) |
| 1546 |
|
| 1547 |
static inline void pxa2xx_i2s_update(PXA2xxI2SState *i2s) |
| 1548 |
{
|
| 1549 |
int rfs, tfs;
|
| 1550 |
rfs = SACR_RFTH(i2s->control[0]) < i2s->rx_len &&
|
| 1551 |
!SACR_DREC(i2s->control[1]);
|
| 1552 |
tfs = (i2s->tx_len || i2s->fifo_len < SACR_TFTH(i2s->control[0])) &&
|
| 1553 |
i2s->enable && !SACR_DPRL(i2s->control[1]);
|
| 1554 |
|
| 1555 |
pxa2xx_dma_request(i2s->dma, PXA2XX_RX_RQ_I2S, rfs); |
| 1556 |
pxa2xx_dma_request(i2s->dma, PXA2XX_TX_RQ_I2S, tfs); |
| 1557 |
|
| 1558 |
i2s->status &= 0xe0;
|
| 1559 |
if (i2s->fifo_len < 16 || !i2s->enable) |
| 1560 |
i2s->status |= 1 << 0; /* TNF */ |
| 1561 |
if (i2s->rx_len)
|
| 1562 |
i2s->status |= 1 << 1; /* RNE */ |
| 1563 |
if (i2s->enable)
|
| 1564 |
i2s->status |= 1 << 2; /* BSY */ |
| 1565 |
if (tfs)
|
| 1566 |
i2s->status |= 1 << 3; /* TFS */ |
| 1567 |
if (rfs)
|
| 1568 |
i2s->status |= 1 << 4; /* RFS */ |
| 1569 |
if (!(i2s->tx_len && i2s->enable))
|
| 1570 |
i2s->status |= i2s->fifo_len << 8; /* TFL */ |
| 1571 |
i2s->status |= MAX(i2s->rx_len, 0xf) << 12; /* RFL */ |
| 1572 |
|
| 1573 |
qemu_set_irq(i2s->irq, i2s->status & i2s->mask); |
| 1574 |
} |
| 1575 |
|
| 1576 |
#define SACR0 0x00 /* Serial Audio Global Control register */ |
| 1577 |
#define SACR1 0x04 /* Serial Audio I2S/MSB-Justified Control register */ |
| 1578 |
#define SASR0 0x0c /* Serial Audio Interface and FIFO Status register */ |
| 1579 |
#define SAIMR 0x14 /* Serial Audio Interrupt Mask register */ |
| 1580 |
#define SAICR 0x18 /* Serial Audio Interrupt Clear register */ |
| 1581 |
#define SADIV 0x60 /* Serial Audio Clock Divider register */ |
| 1582 |
#define SADR 0x80 /* Serial Audio Data register */ |
| 1583 |
|
| 1584 |
static uint32_t pxa2xx_i2s_read(void *opaque, target_phys_addr_t addr) |
| 1585 |
{
|
| 1586 |
PXA2xxI2SState *s = (PXA2xxI2SState *) opaque; |
| 1587 |
|
| 1588 |
switch (addr) {
|
| 1589 |
case SACR0:
|
| 1590 |
return s->control[0]; |
| 1591 |
case SACR1:
|
| 1592 |
return s->control[1]; |
| 1593 |
case SASR0:
|
| 1594 |
return s->status;
|
| 1595 |
case SAIMR:
|
| 1596 |
return s->mask;
|
| 1597 |
case SAICR:
|
| 1598 |
return 0; |
| 1599 |
case SADIV:
|
| 1600 |
return s->clk;
|
| 1601 |
case SADR:
|
| 1602 |
if (s->rx_len > 0) { |
| 1603 |
s->rx_len --; |
| 1604 |
pxa2xx_i2s_update(s); |
| 1605 |
return s->codec_in(s->opaque);
|
| 1606 |
} |
| 1607 |
return 0; |
| 1608 |
default:
|
| 1609 |
printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
| 1610 |
break;
|
| 1611 |
} |
| 1612 |
return 0; |
| 1613 |
} |
| 1614 |
|
| 1615 |
static void pxa2xx_i2s_write(void *opaque, target_phys_addr_t addr, |
| 1616 |
uint32_t value) |
| 1617 |
{
|
| 1618 |
PXA2xxI2SState *s = (PXA2xxI2SState *) opaque; |
| 1619 |
uint32_t *sample; |
| 1620 |
|
| 1621 |
switch (addr) {
|
| 1622 |
case SACR0:
|
| 1623 |
if (value & (1 << 3)) /* RST */ |
| 1624 |
pxa2xx_i2s_reset(s); |
| 1625 |
s->control[0] = value & 0xff3d; |
| 1626 |
if (!s->enable && (value & 1) && s->tx_len) { /* ENB */ |
| 1627 |
for (sample = s->fifo; s->fifo_len > 0; s->fifo_len --, sample ++) |
| 1628 |
s->codec_out(s->opaque, *sample); |
| 1629 |
s->status &= ~(1 << 7); /* I2SOFF */ |
| 1630 |
} |
| 1631 |
if (value & (1 << 4)) /* EFWR */ |
| 1632 |
printf("%s: Attempt to use special function\n", __FUNCTION__);
|
| 1633 |
s->enable = ((value ^ 4) & 5) == 5; /* ENB && !RST*/ |
| 1634 |
pxa2xx_i2s_update(s); |
| 1635 |
break;
|
| 1636 |
case SACR1:
|
| 1637 |
s->control[1] = value & 0x0039; |
| 1638 |
if (value & (1 << 5)) /* ENLBF */ |
| 1639 |
printf("%s: Attempt to use loopback function\n", __FUNCTION__);
|
| 1640 |
if (value & (1 << 4)) /* DPRL */ |
| 1641 |
s->fifo_len = 0;
|
| 1642 |
pxa2xx_i2s_update(s); |
| 1643 |
break;
|
| 1644 |
case SAIMR:
|
| 1645 |
s->mask = value & 0x0078;
|
| 1646 |
pxa2xx_i2s_update(s); |
| 1647 |
break;
|
| 1648 |
case SAICR:
|
| 1649 |
s->status &= ~(value & (3 << 5)); |
| 1650 |
pxa2xx_i2s_update(s); |
| 1651 |
break;
|
| 1652 |
case SADIV:
|
| 1653 |
s->clk = value & 0x007f;
|
| 1654 |
break;
|
| 1655 |
case SADR:
|
| 1656 |
if (s->tx_len && s->enable) {
|
| 1657 |
s->tx_len --; |
| 1658 |
pxa2xx_i2s_update(s); |
| 1659 |
s->codec_out(s->opaque, value); |
| 1660 |
} else if (s->fifo_len < 16) { |
| 1661 |
s->fifo[s->fifo_len ++] = value; |
| 1662 |
pxa2xx_i2s_update(s); |
| 1663 |
} |
| 1664 |
break;
|
| 1665 |
default:
|
| 1666 |
printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
| 1667 |
} |
| 1668 |
} |
| 1669 |
|
| 1670 |
static CPUReadMemoryFunc * const pxa2xx_i2s_readfn[] = { |
| 1671 |
pxa2xx_i2s_read, |
| 1672 |
pxa2xx_i2s_read, |
| 1673 |
pxa2xx_i2s_read, |
| 1674 |
}; |
| 1675 |
|
| 1676 |
static CPUWriteMemoryFunc * const pxa2xx_i2s_writefn[] = { |
| 1677 |
pxa2xx_i2s_write, |
| 1678 |
pxa2xx_i2s_write, |
| 1679 |
pxa2xx_i2s_write, |
| 1680 |
}; |
| 1681 |
|
| 1682 |
static void pxa2xx_i2s_save(QEMUFile *f, void *opaque) |
| 1683 |
{
|
| 1684 |
PXA2xxI2SState *s = (PXA2xxI2SState *) opaque; |
| 1685 |
|
| 1686 |
qemu_put_be32s(f, &s->control[0]);
|
| 1687 |
qemu_put_be32s(f, &s->control[1]);
|
| 1688 |
qemu_put_be32s(f, &s->status); |
| 1689 |
qemu_put_be32s(f, &s->mask); |
| 1690 |
qemu_put_be32s(f, &s->clk); |
| 1691 |
|
| 1692 |
qemu_put_be32(f, s->enable); |
| 1693 |
qemu_put_be32(f, s->rx_len); |
| 1694 |
qemu_put_be32(f, s->tx_len); |
| 1695 |
qemu_put_be32(f, s->fifo_len); |
| 1696 |
} |
| 1697 |
|
| 1698 |
static int pxa2xx_i2s_load(QEMUFile *f, void *opaque, int version_id) |
| 1699 |
{
|
| 1700 |
PXA2xxI2SState *s = (PXA2xxI2SState *) opaque; |
| 1701 |
|
| 1702 |
qemu_get_be32s(f, &s->control[0]);
|
| 1703 |
qemu_get_be32s(f, &s->control[1]);
|
| 1704 |
qemu_get_be32s(f, &s->status); |
| 1705 |
qemu_get_be32s(f, &s->mask); |
| 1706 |
qemu_get_be32s(f, &s->clk); |
| 1707 |
|
| 1708 |
s->enable = qemu_get_be32(f); |
| 1709 |
s->rx_len = qemu_get_be32(f); |
| 1710 |
s->tx_len = qemu_get_be32(f); |
| 1711 |
s->fifo_len = qemu_get_be32(f); |
| 1712 |
|
| 1713 |
return 0; |
| 1714 |
} |
| 1715 |
|
| 1716 |
static void pxa2xx_i2s_data_req(void *opaque, int tx, int rx) |
| 1717 |
{
|
| 1718 |
PXA2xxI2SState *s = (PXA2xxI2SState *) opaque; |
| 1719 |
uint32_t *sample; |
| 1720 |
|
| 1721 |
/* Signal FIFO errors */
|
| 1722 |
if (s->enable && s->tx_len)
|
| 1723 |
s->status |= 1 << 5; /* TUR */ |
| 1724 |
if (s->enable && s->rx_len)
|
| 1725 |
s->status |= 1 << 6; /* ROR */ |
| 1726 |
|
| 1727 |
/* Should be tx - MIN(tx, s->fifo_len) but we don't really need to
|
| 1728 |
* handle the cases where it makes a difference. */
|
| 1729 |
s->tx_len = tx - s->fifo_len; |
| 1730 |
s->rx_len = rx; |
| 1731 |
/* Note that is s->codec_out wasn't set, we wouldn't get called. */
|
| 1732 |
if (s->enable)
|
| 1733 |
for (sample = s->fifo; s->fifo_len; s->fifo_len --, sample ++)
|
| 1734 |
s->codec_out(s->opaque, *sample); |
| 1735 |
pxa2xx_i2s_update(s); |
| 1736 |
} |
| 1737 |
|
| 1738 |
static PXA2xxI2SState *pxa2xx_i2s_init(target_phys_addr_t base,
|
| 1739 |
qemu_irq irq, PXA2xxDMAState *dma) |
| 1740 |
{
|
| 1741 |
int iomemtype;
|
| 1742 |
PXA2xxI2SState *s = (PXA2xxI2SState *) |
| 1743 |
qemu_mallocz(sizeof(PXA2xxI2SState));
|
| 1744 |
|
| 1745 |
s->irq = irq; |
| 1746 |
s->dma = dma; |
| 1747 |
s->data_req = pxa2xx_i2s_data_req; |
| 1748 |
|
| 1749 |
pxa2xx_i2s_reset(s); |
| 1750 |
|
| 1751 |
iomemtype = cpu_register_io_memory(pxa2xx_i2s_readfn, |
| 1752 |
pxa2xx_i2s_writefn, s); |
| 1753 |
cpu_register_physical_memory(base, 0x100000, iomemtype);
|
| 1754 |
|
| 1755 |
register_savevm(NULL, "pxa2xx_i2s", base, 0, |
| 1756 |
pxa2xx_i2s_save, pxa2xx_i2s_load, s); |
| 1757 |
|
| 1758 |
return s;
|
| 1759 |
} |
| 1760 |
|
| 1761 |
/* PXA Fast Infra-red Communications Port */
|
| 1762 |
struct PXA2xxFIrState {
|
| 1763 |
qemu_irq irq; |
| 1764 |
PXA2xxDMAState *dma; |
| 1765 |
int enable;
|
| 1766 |
CharDriverState *chr; |
| 1767 |
|
| 1768 |
uint8_t control[3];
|
| 1769 |
uint8_t status[2];
|
| 1770 |
|
| 1771 |
int rx_len;
|
| 1772 |
int rx_start;
|
| 1773 |
uint8_t rx_fifo[64];
|
| 1774 |
}; |
| 1775 |
|
| 1776 |
static void pxa2xx_fir_reset(PXA2xxFIrState *s) |
| 1777 |
{
|
| 1778 |
s->control[0] = 0x00; |
| 1779 |
s->control[1] = 0x00; |
| 1780 |
s->control[2] = 0x00; |
| 1781 |
s->status[0] = 0x00; |
| 1782 |
s->status[1] = 0x00; |
| 1783 |
s->enable = 0;
|
| 1784 |
} |
| 1785 |
|
| 1786 |
static inline void pxa2xx_fir_update(PXA2xxFIrState *s) |
| 1787 |
{
|
| 1788 |
static const int tresh[4] = { 8, 16, 32, 0 }; |
| 1789 |
int intr = 0; |
| 1790 |
if ((s->control[0] & (1 << 4)) && /* RXE */ |
| 1791 |
s->rx_len >= tresh[s->control[2] & 3]) /* TRIG */ |
| 1792 |
s->status[0] |= 1 << 4; /* RFS */ |
| 1793 |
else
|
| 1794 |
s->status[0] &= ~(1 << 4); /* RFS */ |
| 1795 |
if (s->control[0] & (1 << 3)) /* TXE */ |
| 1796 |
s->status[0] |= 1 << 3; /* TFS */ |
| 1797 |
else
|
| 1798 |
s->status[0] &= ~(1 << 3); /* TFS */ |
| 1799 |
if (s->rx_len)
|
| 1800 |
s->status[1] |= 1 << 2; /* RNE */ |
| 1801 |
else
|
| 1802 |
s->status[1] &= ~(1 << 2); /* RNE */ |
| 1803 |
if (s->control[0] & (1 << 4)) /* RXE */ |
| 1804 |
s->status[1] |= 1 << 0; /* RSY */ |
| 1805 |
else
|
| 1806 |
s->status[1] &= ~(1 << 0); /* RSY */ |
| 1807 |
|
| 1808 |
intr |= (s->control[0] & (1 << 5)) && /* RIE */ |
| 1809 |
(s->status[0] & (1 << 4)); /* RFS */ |
| 1810 |
intr |= (s->control[0] & (1 << 6)) && /* TIE */ |
| 1811 |
(s->status[0] & (1 << 3)); /* TFS */ |
| 1812 |
intr |= (s->control[2] & (1 << 4)) && /* TRAIL */ |
| 1813 |
(s->status[0] & (1 << 6)); /* EOC */ |
| 1814 |
intr |= (s->control[0] & (1 << 2)) && /* TUS */ |
| 1815 |
(s->status[0] & (1 << 1)); /* TUR */ |
| 1816 |
intr |= s->status[0] & 0x25; /* FRE, RAB, EIF */ |
| 1817 |
|
| 1818 |
pxa2xx_dma_request(s->dma, PXA2XX_RX_RQ_ICP, (s->status[0] >> 4) & 1); |
| 1819 |
pxa2xx_dma_request(s->dma, PXA2XX_TX_RQ_ICP, (s->status[0] >> 3) & 1); |
| 1820 |
|
| 1821 |
qemu_set_irq(s->irq, intr && s->enable); |
| 1822 |
} |
| 1823 |
|
| 1824 |
#define ICCR0 0x00 /* FICP Control register 0 */ |
| 1825 |
#define ICCR1 0x04 /* FICP Control register 1 */ |
| 1826 |
#define ICCR2 0x08 /* FICP Control register 2 */ |
| 1827 |
#define ICDR 0x0c /* FICP Data register */ |
| 1828 |
#define ICSR0 0x14 /* FICP Status register 0 */ |
| 1829 |
#define ICSR1 0x18 /* FICP Status register 1 */ |
| 1830 |
#define ICFOR 0x1c /* FICP FIFO Occupancy Status register */ |
| 1831 |
|
| 1832 |
static uint32_t pxa2xx_fir_read(void *opaque, target_phys_addr_t addr) |
| 1833 |
{
|
| 1834 |
PXA2xxFIrState *s = (PXA2xxFIrState *) opaque; |
| 1835 |
uint8_t ret; |
| 1836 |
|
| 1837 |
switch (addr) {
|
| 1838 |
case ICCR0:
|
| 1839 |
return s->control[0]; |
| 1840 |
case ICCR1:
|
| 1841 |
return s->control[1]; |
| 1842 |
case ICCR2:
|
| 1843 |
return s->control[2]; |
| 1844 |
case ICDR:
|
| 1845 |
s->status[0] &= ~0x01; |
| 1846 |
s->status[1] &= ~0x72; |
| 1847 |
if (s->rx_len) {
|
| 1848 |
s->rx_len --; |
| 1849 |
ret = s->rx_fifo[s->rx_start ++]; |
| 1850 |
s->rx_start &= 63;
|
| 1851 |
pxa2xx_fir_update(s); |
| 1852 |
return ret;
|
| 1853 |
} |
| 1854 |
printf("%s: Rx FIFO underrun.\n", __FUNCTION__);
|
| 1855 |
break;
|
| 1856 |
case ICSR0:
|
| 1857 |
return s->status[0]; |
| 1858 |
case ICSR1:
|
| 1859 |
return s->status[1] | (1 << 3); /* TNF */ |
| 1860 |
case ICFOR:
|
| 1861 |
return s->rx_len;
|
| 1862 |
default:
|
| 1863 |
printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
| 1864 |
break;
|
| 1865 |
} |
| 1866 |
return 0; |
| 1867 |
} |
| 1868 |
|
| 1869 |
static void pxa2xx_fir_write(void *opaque, target_phys_addr_t addr, |
| 1870 |
uint32_t value) |
| 1871 |
{
|
| 1872 |
PXA2xxFIrState *s = (PXA2xxFIrState *) opaque; |
| 1873 |
uint8_t ch; |
| 1874 |
|
| 1875 |
switch (addr) {
|
| 1876 |
case ICCR0:
|
| 1877 |
s->control[0] = value;
|
| 1878 |
if (!(value & (1 << 4))) /* RXE */ |
| 1879 |
s->rx_len = s->rx_start = 0;
|
| 1880 |
if (!(value & (1 << 3))) /* TXE */ |
| 1881 |
/* Nop */;
|
| 1882 |
s->enable = value & 1; /* ITR */ |
| 1883 |
if (!s->enable)
|
| 1884 |
s->status[0] = 0; |
| 1885 |
pxa2xx_fir_update(s); |
| 1886 |
break;
|
| 1887 |
case ICCR1:
|
| 1888 |
s->control[1] = value;
|
| 1889 |
break;
|
| 1890 |
case ICCR2:
|
| 1891 |
s->control[2] = value & 0x3f; |
| 1892 |
pxa2xx_fir_update(s); |
| 1893 |
break;
|
| 1894 |
case ICDR:
|
| 1895 |
if (s->control[2] & (1 << 2)) /* TXP */ |
| 1896 |
ch = value; |
| 1897 |
else
|
| 1898 |
ch = ~value; |
| 1899 |
if (s->chr && s->enable && (s->control[0] & (1 << 3))) /* TXE */ |
| 1900 |
qemu_chr_write(s->chr, &ch, 1);
|
| 1901 |
break;
|
| 1902 |
case ICSR0:
|
| 1903 |
s->status[0] &= ~(value & 0x66); |
| 1904 |
pxa2xx_fir_update(s); |
| 1905 |
break;
|
| 1906 |
case ICFOR:
|
| 1907 |
break;
|
| 1908 |
default:
|
| 1909 |
printf("%s: Bad register " REG_FMT "\n", __FUNCTION__, addr); |
| 1910 |
} |
| 1911 |
} |
| 1912 |
|
| 1913 |
static CPUReadMemoryFunc * const pxa2xx_fir_readfn[] = { |
| 1914 |
pxa2xx_fir_read, |
| 1915 |
pxa2xx_fir_read, |
| 1916 |
pxa2xx_fir_read, |
| 1917 |
}; |
| 1918 |
|
| 1919 |
static CPUWriteMemoryFunc * const pxa2xx_fir_writefn[] = { |
| 1920 |
pxa2xx_fir_write, |
| 1921 |
pxa2xx_fir_write, |
| 1922 |
pxa2xx_fir_write, |
| 1923 |
}; |
| 1924 |
|
| 1925 |
static int pxa2xx_fir_is_empty(void *opaque) |
| 1926 |
{
|
| 1927 |
PXA2xxFIrState *s = (PXA2xxFIrState *) opaque; |
| 1928 |
return (s->rx_len < 64); |
| 1929 |
} |
| 1930 |
|
| 1931 |
static void pxa2xx_fir_rx(void *opaque, const uint8_t *buf, int size) |
| 1932 |
{
|
| 1933 |
PXA2xxFIrState *s = (PXA2xxFIrState *) opaque; |
| 1934 |
if (!(s->control[0] & (1 << 4))) /* RXE */ |
| 1935 |
return;
|
| 1936 |
|
| 1937 |
while (size --) {
|
| 1938 |
s->status[1] |= 1 << 4; /* EOF */ |
| 1939 |
if (s->rx_len >= 64) { |
| 1940 |
s->status[1] |= 1 << 6; /* ROR */ |
| 1941 |
break;
|
| 1942 |
} |
| 1943 |
|
| 1944 |
if (s->control[2] & (1 << 3)) /* RXP */ |
| 1945 |
s->rx_fifo[(s->rx_start + s->rx_len ++) & 63] = *(buf ++);
|
| 1946 |
else
|
| 1947 |
s->rx_fifo[(s->rx_start + s->rx_len ++) & 63] = ~*(buf ++);
|
| 1948 |
} |
| 1949 |
|
| 1950 |
pxa2xx_fir_update(s); |
| 1951 |
} |
| 1952 |
|
| 1953 |
static void pxa2xx_fir_event(void *opaque, int event) |
| 1954 |
{
|
| 1955 |
} |
| 1956 |
|
| 1957 |
static void pxa2xx_fir_save(QEMUFile *f, void *opaque) |
| 1958 |
{
|
| 1959 |
PXA2xxFIrState *s = (PXA2xxFIrState *) opaque; |
| 1960 |
int i;
|
| 1961 |
|
| 1962 |
qemu_put_be32(f, s->enable); |
| 1963 |
|
| 1964 |
qemu_put_8s(f, &s->control[0]);
|
| 1965 |
qemu_put_8s(f, &s->control[1]);
|
| 1966 |
qemu_put_8s(f, &s->control[2]);
|
| 1967 |
qemu_put_8s(f, &s->status[0]);
|
| 1968 |
qemu_put_8s(f, &s->status[1]);
|
| 1969 |
|
| 1970 |
qemu_put_byte(f, s->rx_len); |
| 1971 |
for (i = 0; i < s->rx_len; i ++) |
| 1972 |
qemu_put_byte(f, s->rx_fifo[(s->rx_start + i) & 63]);
|
| 1973 |
} |
| 1974 |
|
| 1975 |
static int pxa2xx_fir_load(QEMUFile *f, void *opaque, int version_id) |
| 1976 |
{
|
| 1977 |
PXA2xxFIrState *s = (PXA2xxFIrState *) opaque; |
| 1978 |
int i;
|
| 1979 |
|
| 1980 |
s->enable = qemu_get_be32(f); |
| 1981 |
|
| 1982 |
qemu_get_8s(f, &s->control[0]);
|
| 1983 |
qemu_get_8s(f, &s->control[1]);
|
| 1984 |
qemu_get_8s(f, &s->control[2]);
|
| 1985 |
qemu_get_8s(f, &s->status[0]);
|
| 1986 |
qemu_get_8s(f, &s->status[1]);
|
| 1987 |
|
| 1988 |
s->rx_len = qemu_get_byte(f); |
| 1989 |
s->rx_start = 0;
|
| 1990 |
for (i = 0; i < s->rx_len; i ++) |
| 1991 |
s->rx_fifo[i] = qemu_get_byte(f); |
| 1992 |
|
| 1993 |
return 0; |
| 1994 |
} |
| 1995 |
|
| 1996 |
static PXA2xxFIrState *pxa2xx_fir_init(target_phys_addr_t base,
|
| 1997 |
qemu_irq irq, PXA2xxDMAState *dma, |
| 1998 |
CharDriverState *chr) |
| 1999 |
{
|
| 2000 |
int iomemtype;
|
| 2001 |
PXA2xxFIrState *s = (PXA2xxFIrState *) |
| 2002 |
qemu_mallocz(sizeof(PXA2xxFIrState));
|
| 2003 |
|
| 2004 |
s->irq = irq; |
| 2005 |
s->dma = dma; |
| 2006 |
s->chr = chr; |
| 2007 |
|
| 2008 |
pxa2xx_fir_reset(s); |
| 2009 |
|
| 2010 |
iomemtype = cpu_register_io_memory(pxa2xx_fir_readfn, |
| 2011 |
pxa2xx_fir_writefn, s); |
| 2012 |
cpu_register_physical_memory(base, 0x1000, iomemtype);
|
| 2013 |
|
| 2014 |
if (chr)
|
| 2015 |
qemu_chr_add_handlers(chr, pxa2xx_fir_is_empty, |
| 2016 |
pxa2xx_fir_rx, pxa2xx_fir_event, s); |
| 2017 |
|
| 2018 |
register_savevm(NULL, "pxa2xx_fir", 0, 0, pxa2xx_fir_save, |
| 2019 |
pxa2xx_fir_load, s); |
| 2020 |
|
| 2021 |
return s;
|
| 2022 |
} |
| 2023 |
|
| 2024 |
static void pxa2xx_reset(void *opaque, int line, int level) |
| 2025 |
{
|
| 2026 |
PXA2xxState *s = (PXA2xxState *) opaque; |
| 2027 |
|
| 2028 |
if (level && (s->pm_regs[PCFR >> 2] & 0x10)) { /* GPR_EN */ |
| 2029 |
cpu_reset(s->env); |
| 2030 |
/* TODO: reset peripherals */
|
| 2031 |
} |
| 2032 |
} |
| 2033 |
|
| 2034 |
/* Initialise a PXA270 integrated chip (ARM based core). */
|
| 2035 |
PXA2xxState *pxa270_init(unsigned int sdram_size, const char *revision) |
| 2036 |
{
|
| 2037 |
PXA2xxState *s; |
| 2038 |
int iomemtype, i;
|
| 2039 |
DriveInfo *dinfo; |
| 2040 |
s = (PXA2xxState *) qemu_mallocz(sizeof(PXA2xxState));
|
| 2041 |
|
| 2042 |
if (revision && strncmp(revision, "pxa27", 5)) { |
| 2043 |
fprintf(stderr, "Machine requires a PXA27x processor.\n");
|
| 2044 |
exit(1);
|
| 2045 |
} |
| 2046 |
if (!revision)
|
| 2047 |
revision = "pxa270";
|
| 2048 |
|
| 2049 |
s->env = cpu_init(revision); |
| 2050 |
if (!s->env) {
|
| 2051 |
fprintf(stderr, "Unable to find CPU definition\n");
|
| 2052 |
exit(1);
|
| 2053 |
} |
| 2054 |
s->reset = qemu_allocate_irqs(pxa2xx_reset, s, 1)[0]; |
| 2055 |
|
| 2056 |
/* SDRAM & Internal Memory Storage */
|
| 2057 |
cpu_register_physical_memory(PXA2XX_SDRAM_BASE, |
| 2058 |
sdram_size, qemu_ram_alloc(NULL, "pxa270.sdram", |
| 2059 |
sdram_size) | IO_MEM_RAM); |
| 2060 |
cpu_register_physical_memory(PXA2XX_INTERNAL_BASE, |
| 2061 |
0x40000, qemu_ram_alloc(NULL, "pxa270.internal", |
| 2062 |
0x40000) | IO_MEM_RAM);
|
| 2063 |
|
| 2064 |
s->pic = pxa2xx_pic_init(0x40d00000, s->env);
|
| 2065 |
|
| 2066 |
s->dma = pxa27x_dma_init(0x40000000, s->pic[PXA2XX_PIC_DMA]);
|
| 2067 |
|
| 2068 |
pxa27x_timer_init(0x40a00000, &s->pic[PXA2XX_PIC_OST_0],
|
| 2069 |
s->pic[PXA27X_PIC_OST_4_11]); |
| 2070 |
|
| 2071 |
s->gpio = pxa2xx_gpio_init(0x40e00000, s->env, s->pic, 121); |
| 2072 |
|
| 2073 |
dinfo = drive_get(IF_SD, 0, 0); |
| 2074 |
if (!dinfo) {
|
| 2075 |
fprintf(stderr, "qemu: missing SecureDigital device\n");
|
| 2076 |
exit(1);
|
| 2077 |
} |
| 2078 |
s->mmc = pxa2xx_mmci_init(0x41100000, dinfo->bdrv,
|
| 2079 |
s->pic[PXA2XX_PIC_MMC], s->dma); |
| 2080 |
|
| 2081 |
for (i = 0; pxa270_serial[i].io_base; i ++) |
| 2082 |
if (serial_hds[i])
|
| 2083 |
#ifdef TARGET_WORDS_BIGENDIAN
|
| 2084 |
serial_mm_init(pxa270_serial[i].io_base, 2,
|
| 2085 |
s->pic[pxa270_serial[i].irqn], 14857000/16, |
| 2086 |
serial_hds[i], 1, 1); |
| 2087 |
#else
|
| 2088 |
serial_mm_init(pxa270_serial[i].io_base, 2,
|
| 2089 |
s->pic[pxa270_serial[i].irqn], 14857000/16, |
| 2090 |
serial_hds[i], 1, 0); |
| 2091 |
#endif
|
| 2092 |
else
|
| 2093 |
break;
|
| 2094 |
if (serial_hds[i])
|
| 2095 |
s->fir = pxa2xx_fir_init(0x40800000, s->pic[PXA2XX_PIC_ICP],
|
| 2096 |
s->dma, serial_hds[i]); |
| 2097 |
|
| 2098 |
s->lcd = pxa2xx_lcdc_init(0x44000000, s->pic[PXA2XX_PIC_LCD]);
|
| 2099 |
|
| 2100 |
s->cm_base = 0x41300000;
|
| 2101 |
s->cm_regs[CCCR >> 2] = 0x02000210; /* 416.0 MHz */ |
| 2102 |
s->clkcfg = 0x00000009; /* Turbo mode active */ |
| 2103 |
iomemtype = cpu_register_io_memory(pxa2xx_cm_readfn, |
| 2104 |
pxa2xx_cm_writefn, s); |
| 2105 |
cpu_register_physical_memory(s->cm_base, 0x1000, iomemtype);
|
| 2106 |
register_savevm(NULL, "pxa2xx_cm", 0, 0, pxa2xx_cm_save, pxa2xx_cm_load, s); |
| 2107 |
|
| 2108 |
cpu_arm_set_cp_io(s->env, 14, pxa2xx_cp14_read, pxa2xx_cp14_write, s);
|
| 2109 |
|
| 2110 |
s->mm_base = 0x48000000;
|
| 2111 |
s->mm_regs[MDMRS >> 2] = 0x00020002; |
| 2112 |
s->mm_regs[MDREFR >> 2] = 0x03ca4000; |
| 2113 |
s->mm_regs[MECR >> 2] = 0x00000001; /* Two PC Card sockets */ |
| 2114 |
iomemtype = cpu_register_io_memory(pxa2xx_mm_readfn, |
| 2115 |
pxa2xx_mm_writefn, s); |
| 2116 |
cpu_register_physical_memory(s->mm_base, 0x1000, iomemtype);
|
| 2117 |
register_savevm(NULL, "pxa2xx_mm", 0, 0, pxa2xx_mm_save, pxa2xx_mm_load, s); |
| 2118 |
|
| 2119 |
s->pm_base = 0x40f00000;
|
| 2120 |
iomemtype = cpu_register_io_memory(pxa2xx_pm_readfn, |
| 2121 |
pxa2xx_pm_writefn, s); |
| 2122 |
cpu_register_physical_memory(s->pm_base, 0x100, iomemtype);
|
| 2123 |
register_savevm(NULL, "pxa2xx_pm", 0, 0, pxa2xx_pm_save, pxa2xx_pm_load, s); |
| 2124 |
|
| 2125 |
for (i = 0; pxa27x_ssp[i].io_base; i ++); |
| 2126 |
s->ssp = (SSIBus **)qemu_mallocz(sizeof(SSIBus *) * i);
|
| 2127 |
for (i = 0; pxa27x_ssp[i].io_base; i ++) { |
| 2128 |
DeviceState *dev; |
| 2129 |
dev = sysbus_create_simple("pxa2xx-ssp", pxa27x_ssp[i].io_base,
|
| 2130 |
s->pic[pxa27x_ssp[i].irqn]); |
| 2131 |
s->ssp[i] = (SSIBus *)qdev_get_child_bus(dev, "ssi");
|
| 2132 |
} |
| 2133 |
|
| 2134 |
if (usb_enabled) {
|
| 2135 |
sysbus_create_simple("sysbus-ohci", 0x4c000000, |
| 2136 |
s->pic[PXA2XX_PIC_USBH1]); |
| 2137 |
} |
| 2138 |
|
| 2139 |
s->pcmcia[0] = pxa2xx_pcmcia_init(0x20000000); |
| 2140 |
s->pcmcia[1] = pxa2xx_pcmcia_init(0x30000000); |
| 2141 |
|
| 2142 |
s->rtc_base = 0x40900000;
|
| 2143 |
iomemtype = cpu_register_io_memory(pxa2xx_rtc_readfn, |
| 2144 |
pxa2xx_rtc_writefn, s); |
| 2145 |
cpu_register_physical_memory(s->rtc_base, 0x1000, iomemtype);
|
| 2146 |
pxa2xx_rtc_init(s); |
| 2147 |
register_savevm(NULL, "pxa2xx_rtc", 0, 0, pxa2xx_rtc_save, |
| 2148 |
pxa2xx_rtc_load, s); |
| 2149 |
|
| 2150 |
s->i2c[0] = pxa2xx_i2c_init(0x40301600, s->pic[PXA2XX_PIC_I2C], 0xffff); |
| 2151 |
s->i2c[1] = pxa2xx_i2c_init(0x40f00100, s->pic[PXA2XX_PIC_PWRI2C], 0xff); |
| 2152 |
|
| 2153 |
s->i2s = pxa2xx_i2s_init(0x40400000, s->pic[PXA2XX_PIC_I2S], s->dma);
|
| 2154 |
|
| 2155 |
s->kp = pxa27x_keypad_init(0x41500000, s->pic[PXA2XX_PIC_KEYPAD]);
|
| 2156 |
|
| 2157 |
/* GPIO1 resets the processor */
|
| 2158 |
/* The handler can be overridden by board-specific code */
|
| 2159 |
pxa2xx_gpio_out_set(s->gpio, 1, s->reset);
|
| 2160 |
return s;
|
| 2161 |
} |
| 2162 |
|
| 2163 |
/* Initialise a PXA255 integrated chip (ARM based core). */
|
| 2164 |
PXA2xxState *pxa255_init(unsigned int sdram_size) |
| 2165 |
{
|
| 2166 |
PXA2xxState *s; |
| 2167 |
int iomemtype, i;
|
| 2168 |
DriveInfo *dinfo; |
| 2169 |
|
| 2170 |
s = (PXA2xxState *) qemu_mallocz(sizeof(PXA2xxState));
|
| 2171 |
|
| 2172 |
s->env = cpu_init("pxa255");
|
| 2173 |
if (!s->env) {
|
| 2174 |
fprintf(stderr, "Unable to find CPU definition\n");
|
| 2175 |
exit(1);
|
| 2176 |
} |
| 2177 |
s->reset = qemu_allocate_irqs(pxa2xx_reset, s, 1)[0]; |
| 2178 |
|
| 2179 |
/* SDRAM & Internal Memory Storage */
|
| 2180 |
cpu_register_physical_memory(PXA2XX_SDRAM_BASE, sdram_size, |
| 2181 |
qemu_ram_alloc(NULL, "pxa255.sdram", |
| 2182 |
sdram_size) | IO_MEM_RAM); |
| 2183 |
cpu_register_physical_memory(PXA2XX_INTERNAL_BASE, PXA2XX_INTERNAL_SIZE, |
| 2184 |
qemu_ram_alloc(NULL, "pxa255.internal", |
| 2185 |
PXA2XX_INTERNAL_SIZE) | IO_MEM_RAM); |
| 2186 |
|
| 2187 |
s->pic = pxa2xx_pic_init(0x40d00000, s->env);
|
| 2188 |
|
| 2189 |
s->dma = pxa255_dma_init(0x40000000, s->pic[PXA2XX_PIC_DMA]);
|
| 2190 |
|
| 2191 |
pxa25x_timer_init(0x40a00000, &s->pic[PXA2XX_PIC_OST_0]);
|
| 2192 |
|
| 2193 |
s->gpio = pxa2xx_gpio_init(0x40e00000, s->env, s->pic, 85); |
| 2194 |
|
| 2195 |
dinfo = drive_get(IF_SD, 0, 0); |
| 2196 |
if (!dinfo) {
|
| 2197 |
fprintf(stderr, "qemu: missing SecureDigital device\n");
|
| 2198 |
exit(1);
|
| 2199 |
} |
| 2200 |
s->mmc = pxa2xx_mmci_init(0x41100000, dinfo->bdrv,
|
| 2201 |
s->pic[PXA2XX_PIC_MMC], s->dma); |
| 2202 |
|
| 2203 |
for (i = 0; pxa255_serial[i].io_base; i ++) |
| 2204 |
if (serial_hds[i]) {
|
| 2205 |
#ifdef TARGET_WORDS_BIGENDIAN
|
| 2206 |
serial_mm_init(pxa255_serial[i].io_base, 2,
|
| 2207 |
s->pic[pxa255_serial[i].irqn], 14745600/16, |
| 2208 |
serial_hds[i], 1, 1); |
| 2209 |
#else
|
| 2210 |
serial_mm_init(pxa255_serial[i].io_base, 2,
|
| 2211 |
s->pic[pxa255_serial[i].irqn], 14745600/16, |
| 2212 |
serial_hds[i], 1, 0); |
| 2213 |
#endif
|
| 2214 |
} else {
|
| 2215 |
break;
|
| 2216 |
} |
| 2217 |
if (serial_hds[i])
|
| 2218 |
s->fir = pxa2xx_fir_init(0x40800000, s->pic[PXA2XX_PIC_ICP],
|
| 2219 |
s->dma, serial_hds[i]); |
| 2220 |
|
| 2221 |
s->lcd = pxa2xx_lcdc_init(0x44000000, s->pic[PXA2XX_PIC_LCD]);
|
| 2222 |
|
| 2223 |
s->cm_base = 0x41300000;
|
| 2224 |
s->cm_regs[CCCR >> 2] = 0x02000210; /* 416.0 MHz */ |
| 2225 |
s->clkcfg = 0x00000009; /* Turbo mode active */ |
| 2226 |
iomemtype = cpu_register_io_memory(pxa2xx_cm_readfn, |
| 2227 |
pxa2xx_cm_writefn, s); |
| 2228 |
cpu_register_physical_memory(s->cm_base, 0x1000, iomemtype);
|
| 2229 |
register_savevm(NULL, "pxa2xx_cm", 0, 0, pxa2xx_cm_save, pxa2xx_cm_load, s); |
| 2230 |
|
| 2231 |
cpu_arm_set_cp_io(s->env, 14, pxa2xx_cp14_read, pxa2xx_cp14_write, s);
|
| 2232 |
|
| 2233 |
s->mm_base = 0x48000000;
|
| 2234 |
s->mm_regs[MDMRS >> 2] = 0x00020002; |
| 2235 |
s->mm_regs[MDREFR >> 2] = 0x03ca4000; |
| 2236 |
s->mm_regs[MECR >> 2] = 0x00000001; /* Two PC Card sockets */ |
| 2237 |
iomemtype = cpu_register_io_memory(pxa2xx_mm_readfn, |
| 2238 |
pxa2xx_mm_writefn, s); |
| 2239 |
cpu_register_physical_memory(s->mm_base, 0x1000, iomemtype);
|
| 2240 |
register_savevm(NULL, "pxa2xx_mm", 0, 0, pxa2xx_mm_save, pxa2xx_mm_load, s); |
| 2241 |
|
| 2242 |
s->pm_base = 0x40f00000;
|
| 2243 |
iomemtype = cpu_register_io_memory(pxa2xx_pm_readfn, |
| 2244 |
pxa2xx_pm_writefn, s); |
| 2245 |
cpu_register_physical_memory(s->pm_base, 0x100, iomemtype);
|
| 2246 |
register_savevm(NULL, "pxa2xx_pm", 0, 0, pxa2xx_pm_save, pxa2xx_pm_load, s); |
| 2247 |
|
| 2248 |
for (i = 0; pxa255_ssp[i].io_base; i ++); |
| 2249 |
s->ssp = (SSIBus **)qemu_mallocz(sizeof(SSIBus *) * i);
|
| 2250 |
for (i = 0; pxa255_ssp[i].io_base; i ++) { |
| 2251 |
DeviceState *dev; |
| 2252 |
dev = sysbus_create_simple("pxa2xx-ssp", pxa255_ssp[i].io_base,
|
| 2253 |
s->pic[pxa255_ssp[i].irqn]); |
| 2254 |
s->ssp[i] = (SSIBus *)qdev_get_child_bus(dev, "ssi");
|
| 2255 |
} |
| 2256 |
|
| 2257 |
if (usb_enabled) {
|
| 2258 |
sysbus_create_simple("sysbus-ohci", 0x4c000000, |
| 2259 |
s->pic[PXA2XX_PIC_USBH1]); |
| 2260 |
} |
| 2261 |
|
| 2262 |
s->pcmcia[0] = pxa2xx_pcmcia_init(0x20000000); |
| 2263 |
s->pcmcia[1] = pxa2xx_pcmcia_init(0x30000000); |
| 2264 |
|
| 2265 |
s->rtc_base = 0x40900000;
|
| 2266 |
iomemtype = cpu_register_io_memory(pxa2xx_rtc_readfn, |
| 2267 |
pxa2xx_rtc_writefn, s); |
| 2268 |
cpu_register_physical_memory(s->rtc_base, 0x1000, iomemtype);
|
| 2269 |
pxa2xx_rtc_init(s); |
| 2270 |
register_savevm(NULL, "pxa2xx_rtc", 0, 0, pxa2xx_rtc_save, |
| 2271 |
pxa2xx_rtc_load, s); |
| 2272 |
|
| 2273 |
s->i2c[0] = pxa2xx_i2c_init(0x40301600, s->pic[PXA2XX_PIC_I2C], 0xffff); |
| 2274 |
s->i2c[1] = pxa2xx_i2c_init(0x40f00100, s->pic[PXA2XX_PIC_PWRI2C], 0xff); |
| 2275 |
|
| 2276 |
s->i2s = pxa2xx_i2s_init(0x40400000, s->pic[PXA2XX_PIC_I2S], s->dma);
|
| 2277 |
|
| 2278 |
/* GPIO1 resets the processor */
|
| 2279 |
/* The handler can be overridden by board-specific code */
|
| 2280 |
pxa2xx_gpio_out_set(s->gpio, 1, s->reset);
|
| 2281 |
return s;
|
| 2282 |
} |
| 2283 |
|
| 2284 |
static void pxa2xx_register_devices(void) |
| 2285 |
{
|
| 2286 |
i2c_register_slave(&pxa2xx_i2c_slave_info); |
| 2287 |
sysbus_register_dev("pxa2xx-ssp", sizeof(PXA2xxSSPState), pxa2xx_ssp_init); |
| 2288 |
} |
| 2289 |
|
| 2290 |
device_init(pxa2xx_register_devices) |