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/*
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* bonito north bridge support
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*
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* Copyright (c) 2008 yajin (yajin@vm-kernel.org)
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* Copyright (c) 2010 Huacai Chen (zltjiangshi@gmail.com)
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*
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* This code is licensed under the GNU GPL v2.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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/*
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* fulong 2e mini pc has a bonito north bridge.
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*/
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/* what is the meaning of devfn in qemu and IDSEL in bonito northbridge?
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*
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* devfn pci_slot<<3 + funno
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* one pci bus can have 32 devices and each device can have 8 functions.
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*
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* In bonito north bridge, pci slot = IDSEL bit - 12.
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* For example, PCI_IDSEL_VIA686B = 17,
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* pci slot = 17-12=5
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*
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* so
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* VT686B_FUN0's devfn = (5<<3)+0
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* VT686B_FUN1's devfn = (5<<3)+1
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*
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* qemu also uses pci address for north bridge to access pci config register.
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* bus_no [23:16]
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* dev_no [15:11]
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* fun_no [10:8]
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* reg_no [7:2]
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*
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* so function bonito_sbridge_pciaddr for the translation from
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* north bridge address to pci address.
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*/
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#include <assert.h> |
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#include "hw.h" |
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#include "pci.h" |
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#include "pc.h" |
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#include "mips.h" |
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#include "pci_host.h" |
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#include "sysemu.h" |
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#include "exec-memory.h" |
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//#define DEBUG_BONITO
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#ifdef DEBUG_BONITO
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#define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __FUNCTION__, ##__VA_ARGS__) |
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#else
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#define DPRINTF(fmt, ...)
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#endif
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/* from linux soure code. include/asm-mips/mips-boards/bonito64.h*/
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#define BONITO_BOOT_BASE 0x1fc00000 |
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#define BONITO_BOOT_SIZE 0x00100000 |
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#define BONITO_BOOT_TOP (BONITO_BOOT_BASE+BONITO_BOOT_SIZE-1) |
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#define BONITO_FLASH_BASE 0x1c000000 |
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#define BONITO_FLASH_SIZE 0x03000000 |
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#define BONITO_FLASH_TOP (BONITO_FLASH_BASE+BONITO_FLASH_SIZE-1) |
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#define BONITO_SOCKET_BASE 0x1f800000 |
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#define BONITO_SOCKET_SIZE 0x00400000 |
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#define BONITO_SOCKET_TOP (BONITO_SOCKET_BASE+BONITO_SOCKET_SIZE-1) |
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#define BONITO_REG_BASE 0x1fe00000 |
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#define BONITO_REG_SIZE 0x00040000 |
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#define BONITO_REG_TOP (BONITO_REG_BASE+BONITO_REG_SIZE-1) |
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#define BONITO_DEV_BASE 0x1ff00000 |
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#define BONITO_DEV_SIZE 0x00100000 |
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#define BONITO_DEV_TOP (BONITO_DEV_BASE+BONITO_DEV_SIZE-1) |
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#define BONITO_PCILO_BASE 0x10000000 |
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#define BONITO_PCILO_BASE_VA 0xb0000000 |
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#define BONITO_PCILO_SIZE 0x0c000000 |
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#define BONITO_PCILO_TOP (BONITO_PCILO_BASE+BONITO_PCILO_SIZE-1) |
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#define BONITO_PCILO0_BASE 0x10000000 |
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#define BONITO_PCILO1_BASE 0x14000000 |
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#define BONITO_PCILO2_BASE 0x18000000 |
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#define BONITO_PCIHI_BASE 0x20000000 |
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#define BONITO_PCIHI_SIZE 0x20000000 |
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#define BONITO_PCIHI_TOP (BONITO_PCIHI_BASE+BONITO_PCIHI_SIZE-1) |
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#define BONITO_PCIIO_BASE 0x1fd00000 |
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#define BONITO_PCIIO_BASE_VA 0xbfd00000 |
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#define BONITO_PCIIO_SIZE 0x00010000 |
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#define BONITO_PCIIO_TOP (BONITO_PCIIO_BASE+BONITO_PCIIO_SIZE-1) |
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#define BONITO_PCICFG_BASE 0x1fe80000 |
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#define BONITO_PCICFG_SIZE 0x00080000 |
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#define BONITO_PCICFG_TOP (BONITO_PCICFG_BASE+BONITO_PCICFG_SIZE-1) |
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#define BONITO_PCICONFIGBASE 0x00 |
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#define BONITO_REGBASE 0x100 |
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#define BONITO_PCICONFIG_BASE (BONITO_PCICONFIGBASE+BONITO_REG_BASE)
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#define BONITO_PCICONFIG_SIZE (0x100) |
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#define BONITO_INTERNAL_REG_BASE (BONITO_REGBASE+BONITO_REG_BASE)
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#define BONITO_INTERNAL_REG_SIZE (0x70) |
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#define BONITO_SPCICONFIG_BASE (BONITO_PCICFG_BASE)
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#define BONITO_SPCICONFIG_SIZE (BONITO_PCICFG_SIZE)
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/* 1. Bonito h/w Configuration */
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/* Power on register */
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#define BONITO_BONPONCFG (0x00 >> 2) /* 0x100 */ |
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#define BONITO_BONGENCFG_OFFSET 0x4 |
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#define BONITO_BONGENCFG (BONITO_BONGENCFG_OFFSET>>2) /*0x104 */ |
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/* 2. IO & IDE configuration */
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#define BONITO_IODEVCFG (0x08 >> 2) /* 0x108 */ |
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/* 3. IO & IDE configuration */
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#define BONITO_SDCFG (0x0c >> 2) /* 0x10c */ |
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/* 4. PCI address map control */
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#define BONITO_PCIMAP (0x10 >> 2) /* 0x110 */ |
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#define BONITO_PCIMEMBASECFG (0x14 >> 2) /* 0x114 */ |
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#define BONITO_PCIMAP_CFG (0x18 >> 2) /* 0x118 */ |
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/* 5. ICU & GPIO regs */
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/* GPIO Regs - r/w */
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#define BONITO_GPIODATA_OFFSET 0x1c |
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#define BONITO_GPIODATA (BONITO_GPIODATA_OFFSET >> 2) /* 0x11c */ |
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#define BONITO_GPIOIE (0x20 >> 2) /* 0x120 */ |
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/* ICU Configuration Regs - r/w */
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#define BONITO_INTEDGE (0x24 >> 2) /* 0x124 */ |
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#define BONITO_INTSTEER (0x28 >> 2) /* 0x128 */ |
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#define BONITO_INTPOL (0x2c >> 2) /* 0x12c */ |
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/* ICU Enable Regs - IntEn & IntISR are r/o. */
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#define BONITO_INTENSET (0x30 >> 2) /* 0x130 */ |
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#define BONITO_INTENCLR (0x34 >> 2) /* 0x134 */ |
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#define BONITO_INTEN (0x38 >> 2) /* 0x138 */ |
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#define BONITO_INTISR (0x3c >> 2) /* 0x13c */ |
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/* PCI mail boxes */
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#define BONITO_PCIMAIL0_OFFSET 0x40 |
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#define BONITO_PCIMAIL1_OFFSET 0x44 |
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#define BONITO_PCIMAIL2_OFFSET 0x48 |
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#define BONITO_PCIMAIL3_OFFSET 0x4c |
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#define BONITO_PCIMAIL0 (0x40 >> 2) /* 0x140 */ |
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#define BONITO_PCIMAIL1 (0x44 >> 2) /* 0x144 */ |
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#define BONITO_PCIMAIL2 (0x48 >> 2) /* 0x148 */ |
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#define BONITO_PCIMAIL3 (0x4c >> 2) /* 0x14c */ |
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/* 6. PCI cache */
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#define BONITO_PCICACHECTRL (0x50 >> 2) /* 0x150 */ |
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#define BONITO_PCICACHETAG (0x54 >> 2) /* 0x154 */ |
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#define BONITO_PCIBADADDR (0x58 >> 2) /* 0x158 */ |
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#define BONITO_PCIMSTAT (0x5c >> 2) /* 0x15c */ |
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/* 7. other*/
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#define BONITO_TIMECFG (0x60 >> 2) /* 0x160 */ |
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#define BONITO_CPUCFG (0x64 >> 2) /* 0x164 */ |
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#define BONITO_DQCFG (0x68 >> 2) /* 0x168 */ |
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#define BONITO_MEMSIZE (0x6C >> 2) /* 0x16c */ |
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#define BONITO_REGS (0x70 >> 2) |
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/* PCI config for south bridge. type 0 */
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#define BONITO_PCICONF_IDSEL_MASK 0xfffff800 /* [31:11] */ |
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#define BONITO_PCICONF_IDSEL_OFFSET 11 |
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#define BONITO_PCICONF_FUN_MASK 0x700 /* [10:8] */ |
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#define BONITO_PCICONF_FUN_OFFSET 8 |
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#define BONITO_PCICONF_REG_MASK 0xFC |
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#define BONITO_PCICONF_REG_OFFSET 0 |
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/* idsel BIT = pci slot number +12 */
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#define PCI_SLOT_BASE 12 |
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#define PCI_IDSEL_VIA686B_BIT (17) |
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#define PCI_IDSEL_VIA686B (1<<PCI_IDSEL_VIA686B_BIT) |
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#define PCI_ADDR(busno,devno,funno,regno) \
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((((busno)<<16)&0xff0000) + (((devno)<<11)&0xf800) + (((funno)<<8)&0x700) + (regno)) |
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#define TYPE_BONITO_PCI_HOST_BRIDGE "Bonito-pcihost" |
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typedef struct BonitoState BonitoState; |
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typedef struct PCIBonitoState |
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{ |
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PCIDevice dev; |
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BonitoState *pcihost; |
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uint32_t regs[BONITO_REGS]; |
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struct bonldma {
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uint32_t ldmactrl; |
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uint32_t ldmastat; |
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uint32_t ldmaaddr; |
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uint32_t ldmago; |
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} bonldma; |
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/* Based at 1fe00300, bonito Copier */
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struct boncop {
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uint32_t copctrl; |
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uint32_t copstat; |
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uint32_t coppaddr; |
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uint32_t copgo; |
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} boncop; |
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/* Bonito registers */
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MemoryRegion iomem; |
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MemoryRegion iomem_ldma; |
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MemoryRegion iomem_cop; |
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target_phys_addr_t bonito_pciio_start; |
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target_phys_addr_t bonito_pciio_length; |
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int bonito_pciio_handle;
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target_phys_addr_t bonito_localio_start; |
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target_phys_addr_t bonito_localio_length; |
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int bonito_localio_handle;
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} PCIBonitoState; |
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#define BONITO_PCI_HOST_BRIDGE(obj) \
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OBJECT_CHECK(BonitoState, (obj), TYPE_BONITO_PCI_HOST_BRIDGE) |
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struct BonitoState {
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PCIHostState parent_obj; |
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qemu_irq *pic; |
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PCIBonitoState *pci_dev; |
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}; |
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static void bonito_writel(void *opaque, target_phys_addr_t addr, |
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uint64_t val, unsigned size)
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{ |
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PCIBonitoState *s = opaque; |
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uint32_t saddr; |
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int reset = 0; |
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saddr = (addr - BONITO_REGBASE) >> 2;
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DPRINTF("bonito_writel "TARGET_FMT_plx" val %x saddr %x\n", addr, val, saddr); |
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switch (saddr) {
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case BONITO_BONPONCFG:
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case BONITO_IODEVCFG:
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case BONITO_SDCFG:
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case BONITO_PCIMAP:
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case BONITO_PCIMEMBASECFG:
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case BONITO_PCIMAP_CFG:
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case BONITO_GPIODATA:
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case BONITO_GPIOIE:
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case BONITO_INTEDGE:
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case BONITO_INTSTEER:
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case BONITO_INTPOL:
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case BONITO_PCIMAIL0:
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case BONITO_PCIMAIL1:
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case BONITO_PCIMAIL2:
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case BONITO_PCIMAIL3:
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case BONITO_PCICACHECTRL:
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case BONITO_PCICACHETAG:
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case BONITO_PCIBADADDR:
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case BONITO_PCIMSTAT:
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case BONITO_TIMECFG:
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case BONITO_CPUCFG:
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case BONITO_DQCFG:
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case BONITO_MEMSIZE:
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s->regs[saddr] = val; |
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break;
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case BONITO_BONGENCFG:
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if (!(s->regs[saddr] & 0x04) && (val & 0x04)) { |
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reset = 1; /* bit 2 jump from 0 to 1 cause reset */ |
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} |
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s->regs[saddr] = val; |
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if (reset) {
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qemu_system_reset_request(); |
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} |
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break;
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case BONITO_INTENSET:
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s->regs[BONITO_INTENSET] = val; |
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s->regs[BONITO_INTEN] |= val; |
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break;
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case BONITO_INTENCLR:
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s->regs[BONITO_INTENCLR] = val; |
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s->regs[BONITO_INTEN] &= ~val; |
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break;
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case BONITO_INTEN:
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case BONITO_INTISR:
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DPRINTF("write to readonly bonito register %x\n", saddr);
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break;
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default:
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DPRINTF("write to unknown bonito register %x\n", saddr);
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break;
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} |
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} |
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static uint64_t bonito_readl(void *opaque, target_phys_addr_t addr, |
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unsigned size)
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{ |
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PCIBonitoState *s = opaque; |
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uint32_t saddr; |
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saddr = (addr - BONITO_REGBASE) >> 2;
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DPRINTF("bonito_readl "TARGET_FMT_plx"\n", addr); |
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switch (saddr) {
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case BONITO_INTISR:
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return s->regs[saddr];
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default:
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return s->regs[saddr];
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} |
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} |
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static const MemoryRegionOps bonito_ops = { |
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.read = bonito_readl, |
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.write = bonito_writel, |
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.endianness = DEVICE_NATIVE_ENDIAN, |
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.valid = { |
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.min_access_size = 4,
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.max_access_size = 4,
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}, |
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}; |
324 |
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static void bonito_pciconf_writel(void *opaque, target_phys_addr_t addr, |
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uint64_t val, unsigned size)
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{ |
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PCIBonitoState *s = opaque; |
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PCIDevice *d = PCI_DEVICE(s); |
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DPRINTF("bonito_pciconf_writel "TARGET_FMT_plx" val %x\n", addr, val); |
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d->config_write(d, addr, val, 4);
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} |
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static uint64_t bonito_pciconf_readl(void *opaque, target_phys_addr_t addr, |
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unsigned size)
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{ |
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PCIBonitoState *s = opaque; |
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PCIDevice *d = PCI_DEVICE(s); |
341 |
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DPRINTF("bonito_pciconf_readl "TARGET_FMT_plx"\n", addr); |
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return d->config_read(d, addr, 4); |
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} |
345 |
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/* north bridge PCI configure space. 0x1fe0 0000 - 0x1fe0 00ff */
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static const MemoryRegionOps bonito_pciconf_ops = { |
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.read = bonito_pciconf_readl, |
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.write = bonito_pciconf_writel, |
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.endianness = DEVICE_NATIVE_ENDIAN, |
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.valid = { |
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.min_access_size = 4,
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.max_access_size = 4,
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}, |
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}; |
357 |
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static uint64_t bonito_ldma_readl(void *opaque, target_phys_addr_t addr, |
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unsigned size)
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{ |
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uint32_t val; |
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PCIBonitoState *s = opaque; |
363 |
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val = ((uint32_t *)(&s->bonldma))[addr/sizeof(uint32_t)];
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return val;
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} |
368 |
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static void bonito_ldma_writel(void *opaque, target_phys_addr_t addr, |
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uint64_t val, unsigned size)
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{ |
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PCIBonitoState *s = opaque; |
373 |
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((uint32_t *)(&s->bonldma))[addr/sizeof(uint32_t)] = val & 0xffffffff; |
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} |
376 |
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static const MemoryRegionOps bonito_ldma_ops = { |
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.read = bonito_ldma_readl, |
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.write = bonito_ldma_writel, |
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.endianness = DEVICE_NATIVE_ENDIAN, |
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.valid = { |
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.min_access_size = 4,
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.max_access_size = 4,
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}, |
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}; |
386 |
|
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static uint64_t bonito_cop_readl(void *opaque, target_phys_addr_t addr, |
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unsigned size)
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{ |
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uint32_t val; |
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PCIBonitoState *s = opaque; |
392 |
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val = ((uint32_t *)(&s->boncop))[addr/sizeof(uint32_t)];
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394 |
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return val;
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} |
397 |
|
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static void bonito_cop_writel(void *opaque, target_phys_addr_t addr, |
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uint64_t val, unsigned size)
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{ |
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PCIBonitoState *s = opaque; |
402 |
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((uint32_t *)(&s->boncop))[addr/sizeof(uint32_t)] = val & 0xffffffff; |
404 |
} |
405 |
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static const MemoryRegionOps bonito_cop_ops = { |
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.read = bonito_cop_readl, |
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.write = bonito_cop_writel, |
409 |
.endianness = DEVICE_NATIVE_ENDIAN, |
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.valid = { |
411 |
.min_access_size = 4,
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.max_access_size = 4,
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}, |
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}; |
415 |
|
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static uint32_t bonito_sbridge_pciaddr(void *opaque, target_phys_addr_t addr) |
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{ |
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PCIBonitoState *s = opaque; |
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PCIHostState *phb = FROM_SYSBUS(PCIHostState, SYS_BUS_DEVICE(s->pcihost)); |
420 |
uint32_t cfgaddr; |
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uint32_t idsel; |
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uint32_t devno; |
423 |
uint32_t funno; |
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uint32_t regno; |
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uint32_t pciaddr; |
426 |
|
427 |
/* support type0 pci config */
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if ((s->regs[BONITO_PCIMAP_CFG] & 0x10000) != 0x0) { |
429 |
return 0xffffffff; |
430 |
} |
431 |
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cfgaddr = addr & 0xffff;
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cfgaddr |= (s->regs[BONITO_PCIMAP_CFG] & 0xffff) << 16; |
434 |
|
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idsel = (cfgaddr & BONITO_PCICONF_IDSEL_MASK) >> BONITO_PCICONF_IDSEL_OFFSET; |
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devno = ffs(idsel) - 1;
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funno = (cfgaddr & BONITO_PCICONF_FUN_MASK) >> BONITO_PCICONF_FUN_OFFSET; |
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regno = (cfgaddr & BONITO_PCICONF_REG_MASK) >> BONITO_PCICONF_REG_OFFSET; |
439 |
|
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if (idsel == 0) { |
441 |
fprintf(stderr, "error in bonito pci config address " TARGET_FMT_plx
|
442 |
",pcimap_cfg=%x\n", addr, s->regs[BONITO_PCIMAP_CFG]);
|
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exit(1);
|
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} |
445 |
pciaddr = PCI_ADDR(pci_bus_num(phb->bus), devno, funno, regno); |
446 |
DPRINTF("cfgaddr %x pciaddr %x busno %x devno %d funno %d regno %d\n",
|
447 |
cfgaddr, pciaddr, pci_bus_num(phb->bus), devno, funno, regno); |
448 |
|
449 |
return pciaddr;
|
450 |
} |
451 |
|
452 |
static void bonito_spciconf_writeb(void *opaque, target_phys_addr_t addr, |
453 |
uint32_t val) |
454 |
{ |
455 |
PCIBonitoState *s = opaque; |
456 |
PCIDevice *d = PCI_DEVICE(s); |
457 |
PCIHostState *phb = FROM_SYSBUS(PCIHostState, SYS_BUS_DEVICE(s->pcihost)); |
458 |
uint32_t pciaddr; |
459 |
uint16_t status; |
460 |
|
461 |
DPRINTF("bonito_spciconf_writeb "TARGET_FMT_plx" val %x\n", addr, val); |
462 |
pciaddr = bonito_sbridge_pciaddr(s, addr); |
463 |
|
464 |
if (pciaddr == 0xffffffff) { |
465 |
return;
|
466 |
} |
467 |
|
468 |
/* set the pci address in s->config_reg */
|
469 |
phb->config_reg = (pciaddr) | (1u << 31); |
470 |
pci_data_write(phb->bus, phb->config_reg, val & 0xff, 1); |
471 |
|
472 |
/* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
|
473 |
status = pci_get_word(d->config + PCI_STATUS); |
474 |
status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT); |
475 |
pci_set_word(d->config + PCI_STATUS, status); |
476 |
} |
477 |
|
478 |
static void bonito_spciconf_writew(void *opaque, target_phys_addr_t addr, |
479 |
uint32_t val) |
480 |
{ |
481 |
PCIBonitoState *s = opaque; |
482 |
PCIDevice *d = PCI_DEVICE(s); |
483 |
PCIHostState *phb = FROM_SYSBUS(PCIHostState, SYS_BUS_DEVICE(s->pcihost)); |
484 |
uint32_t pciaddr; |
485 |
uint16_t status; |
486 |
|
487 |
DPRINTF("bonito_spciconf_writew "TARGET_FMT_plx" val %x\n", addr, val); |
488 |
assert((addr & 0x1) == 0); |
489 |
|
490 |
pciaddr = bonito_sbridge_pciaddr(s, addr); |
491 |
|
492 |
if (pciaddr == 0xffffffff) { |
493 |
return;
|
494 |
} |
495 |
|
496 |
/* set the pci address in s->config_reg */
|
497 |
phb->config_reg = (pciaddr) | (1u << 31); |
498 |
pci_data_write(phb->bus, phb->config_reg, val, 2);
|
499 |
|
500 |
/* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
|
501 |
status = pci_get_word(d->config + PCI_STATUS); |
502 |
status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT); |
503 |
pci_set_word(d->config + PCI_STATUS, status); |
504 |
} |
505 |
|
506 |
static void bonito_spciconf_writel(void *opaque, target_phys_addr_t addr, |
507 |
uint32_t val) |
508 |
{ |
509 |
PCIBonitoState *s = opaque; |
510 |
PCIDevice *d = PCI_DEVICE(s); |
511 |
PCIHostState *phb = FROM_SYSBUS(PCIHostState, SYS_BUS_DEVICE(s->pcihost)); |
512 |
uint32_t pciaddr; |
513 |
uint16_t status; |
514 |
|
515 |
DPRINTF("bonito_spciconf_writel "TARGET_FMT_plx" val %x\n", addr, val); |
516 |
assert((addr & 0x3) == 0); |
517 |
|
518 |
pciaddr = bonito_sbridge_pciaddr(s, addr); |
519 |
|
520 |
if (pciaddr == 0xffffffff) { |
521 |
return;
|
522 |
} |
523 |
|
524 |
/* set the pci address in s->config_reg */
|
525 |
phb->config_reg = (pciaddr) | (1u << 31); |
526 |
pci_data_write(phb->bus, phb->config_reg, val, 4);
|
527 |
|
528 |
/* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
|
529 |
status = pci_get_word(d->config + PCI_STATUS); |
530 |
status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT); |
531 |
pci_set_word(d->config + PCI_STATUS, status); |
532 |
} |
533 |
|
534 |
static uint32_t bonito_spciconf_readb(void *opaque, target_phys_addr_t addr) |
535 |
{ |
536 |
PCIBonitoState *s = opaque; |
537 |
PCIDevice *d = PCI_DEVICE(s); |
538 |
PCIHostState *phb = FROM_SYSBUS(PCIHostState, SYS_BUS_DEVICE(s->pcihost)); |
539 |
uint32_t pciaddr; |
540 |
uint16_t status; |
541 |
|
542 |
DPRINTF("bonito_spciconf_readb "TARGET_FMT_plx"\n", addr); |
543 |
pciaddr = bonito_sbridge_pciaddr(s, addr); |
544 |
|
545 |
if (pciaddr == 0xffffffff) { |
546 |
return 0xff; |
547 |
} |
548 |
|
549 |
/* set the pci address in s->config_reg */
|
550 |
phb->config_reg = (pciaddr) | (1u << 31); |
551 |
|
552 |
/* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
|
553 |
status = pci_get_word(d->config + PCI_STATUS); |
554 |
status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT); |
555 |
pci_set_word(d->config + PCI_STATUS, status); |
556 |
|
557 |
return pci_data_read(phb->bus, phb->config_reg, 1); |
558 |
} |
559 |
|
560 |
static uint32_t bonito_spciconf_readw(void *opaque, target_phys_addr_t addr) |
561 |
{ |
562 |
PCIBonitoState *s = opaque; |
563 |
PCIDevice *d = PCI_DEVICE(s); |
564 |
PCIHostState *phb = FROM_SYSBUS(PCIHostState, SYS_BUS_DEVICE(s->pcihost)); |
565 |
uint32_t pciaddr; |
566 |
uint16_t status; |
567 |
|
568 |
DPRINTF("bonito_spciconf_readw "TARGET_FMT_plx"\n", addr); |
569 |
assert((addr & 0x1) == 0); |
570 |
|
571 |
pciaddr = bonito_sbridge_pciaddr(s, addr); |
572 |
|
573 |
if (pciaddr == 0xffffffff) { |
574 |
return 0xffff; |
575 |
} |
576 |
|
577 |
/* set the pci address in s->config_reg */
|
578 |
phb->config_reg = (pciaddr) | (1u << 31); |
579 |
|
580 |
/* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
|
581 |
status = pci_get_word(d->config + PCI_STATUS); |
582 |
status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT); |
583 |
pci_set_word(d->config + PCI_STATUS, status); |
584 |
|
585 |
return pci_data_read(phb->bus, phb->config_reg, 2); |
586 |
} |
587 |
|
588 |
static uint32_t bonito_spciconf_readl(void *opaque, target_phys_addr_t addr) |
589 |
{ |
590 |
PCIBonitoState *s = opaque; |
591 |
PCIDevice *d = PCI_DEVICE(s); |
592 |
PCIHostState *phb = FROM_SYSBUS(PCIHostState, SYS_BUS_DEVICE(s->pcihost)); |
593 |
uint32_t pciaddr; |
594 |
uint16_t status; |
595 |
|
596 |
DPRINTF("bonito_spciconf_readl "TARGET_FMT_plx"\n", addr); |
597 |
assert((addr & 0x3) == 0); |
598 |
|
599 |
pciaddr = bonito_sbridge_pciaddr(s, addr); |
600 |
|
601 |
if (pciaddr == 0xffffffff) { |
602 |
return 0xffffffff; |
603 |
} |
604 |
|
605 |
/* set the pci address in s->config_reg */
|
606 |
phb->config_reg = (pciaddr) | (1u << 31); |
607 |
|
608 |
/* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
|
609 |
status = pci_get_word(d->config + PCI_STATUS); |
610 |
status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT); |
611 |
pci_set_word(d->config + PCI_STATUS, status); |
612 |
|
613 |
return pci_data_read(phb->bus, phb->config_reg, 4); |
614 |
} |
615 |
|
616 |
/* south bridge PCI configure space. 0x1fe8 0000 - 0x1fef ffff */
|
617 |
static const MemoryRegionOps bonito_spciconf_ops = { |
618 |
.old_mmio = { |
619 |
.read = { |
620 |
bonito_spciconf_readb, |
621 |
bonito_spciconf_readw, |
622 |
bonito_spciconf_readl, |
623 |
}, |
624 |
.write = { |
625 |
bonito_spciconf_writeb, |
626 |
bonito_spciconf_writew, |
627 |
bonito_spciconf_writel, |
628 |
}, |
629 |
}, |
630 |
.endianness = DEVICE_NATIVE_ENDIAN, |
631 |
}; |
632 |
|
633 |
#define BONITO_IRQ_BASE 32 |
634 |
|
635 |
static void pci_bonito_set_irq(void *opaque, int irq_num, int level) |
636 |
{ |
637 |
BonitoState *s = opaque; |
638 |
qemu_irq *pic = s->pic; |
639 |
PCIBonitoState *bonito_state = s->pci_dev; |
640 |
int internal_irq = irq_num - BONITO_IRQ_BASE;
|
641 |
|
642 |
if (bonito_state->regs[BONITO_INTEDGE] & (1 << internal_irq)) { |
643 |
qemu_irq_pulse(*pic); |
644 |
} else { /* level triggered */ |
645 |
if (bonito_state->regs[BONITO_INTPOL] & (1 << internal_irq)) { |
646 |
qemu_irq_raise(*pic); |
647 |
} else {
|
648 |
qemu_irq_lower(*pic); |
649 |
} |
650 |
} |
651 |
} |
652 |
|
653 |
/* map the original irq (0~3) to bonito irq (16~47, but 16~31 are unused) */
|
654 |
static int pci_bonito_map_irq(PCIDevice * pci_dev, int irq_num) |
655 |
{ |
656 |
int slot;
|
657 |
|
658 |
slot = (pci_dev->devfn >> 3);
|
659 |
|
660 |
switch (slot) {
|
661 |
case 5: /* FULONG2E_VIA_SLOT, SouthBridge, IDE, USB, ACPI, AC97, MC97 */ |
662 |
return irq_num % 4 + BONITO_IRQ_BASE; |
663 |
case 6: /* FULONG2E_ATI_SLOT, VGA */ |
664 |
return 4 + BONITO_IRQ_BASE; |
665 |
case 7: /* FULONG2E_RTL_SLOT, RTL8139 */ |
666 |
return 5 + BONITO_IRQ_BASE; |
667 |
case 8 ... 12: /* PCI slot 1 to 4 */ |
668 |
return (slot - 8 + irq_num) + 6 + BONITO_IRQ_BASE; |
669 |
default: /* Unknown device, don't do any translation */ |
670 |
return irq_num;
|
671 |
} |
672 |
} |
673 |
|
674 |
static void bonito_reset(void *opaque) |
675 |
{ |
676 |
PCIBonitoState *s = opaque; |
677 |
|
678 |
/* set the default value of north bridge registers */
|
679 |
|
680 |
s->regs[BONITO_BONPONCFG] = 0xc40;
|
681 |
s->regs[BONITO_BONGENCFG] = 0x1384;
|
682 |
s->regs[BONITO_IODEVCFG] = 0x2bff8010;
|
683 |
s->regs[BONITO_SDCFG] = 0x255e0091;
|
684 |
|
685 |
s->regs[BONITO_GPIODATA] = 0x1ff;
|
686 |
s->regs[BONITO_GPIOIE] = 0x1ff;
|
687 |
s->regs[BONITO_DQCFG] = 0x8;
|
688 |
s->regs[BONITO_MEMSIZE] = 0x10000000;
|
689 |
s->regs[BONITO_PCIMAP] = 0x6140;
|
690 |
} |
691 |
|
692 |
static const VMStateDescription vmstate_bonito = { |
693 |
.name = "Bonito",
|
694 |
.version_id = 1,
|
695 |
.minimum_version_id = 1,
|
696 |
.minimum_version_id_old = 1,
|
697 |
.fields = (VMStateField []) { |
698 |
VMSTATE_PCI_DEVICE(dev, PCIBonitoState), |
699 |
VMSTATE_END_OF_LIST() |
700 |
} |
701 |
}; |
702 |
|
703 |
static int bonito_pcihost_initfn(SysBusDevice *dev) |
704 |
{ |
705 |
PCIHostState *phb = FROM_SYSBUS(PCIHostState, dev); |
706 |
|
707 |
phb->bus = pci_register_bus(DEVICE(dev), "pci",
|
708 |
pci_bonito_set_irq, pci_bonito_map_irq, dev, |
709 |
get_system_memory(), get_system_io(), |
710 |
0x28, 32); |
711 |
|
712 |
return 0; |
713 |
} |
714 |
|
715 |
static int bonito_initfn(PCIDevice *dev) |
716 |
{ |
717 |
PCIBonitoState *s = DO_UPCAST(PCIBonitoState, dev, dev); |
718 |
SysBusDevice *sysbus = SYS_BUS_DEVICE(s->pcihost); |
719 |
PCIHostState *phb = FROM_SYSBUS(PCIHostState, sysbus); |
720 |
|
721 |
/* Bonito North Bridge, built on FPGA, VENDOR_ID/DEVICE_ID are "undefined" */
|
722 |
pci_config_set_prog_interface(dev->config, 0x00);
|
723 |
|
724 |
/* set the north bridge register mapping */
|
725 |
memory_region_init_io(&s->iomem, &bonito_ops, s, |
726 |
"north-bridge-register", BONITO_INTERNAL_REG_SIZE);
|
727 |
sysbus_init_mmio(sysbus, &s->iomem); |
728 |
sysbus_mmio_map(sysbus, 0, BONITO_INTERNAL_REG_BASE);
|
729 |
|
730 |
/* set the north bridge pci configure mapping */
|
731 |
memory_region_init_io(&phb->conf_mem, &bonito_pciconf_ops, s, |
732 |
"north-bridge-pci-config", BONITO_PCICONFIG_SIZE);
|
733 |
sysbus_init_mmio(sysbus, &phb->conf_mem); |
734 |
sysbus_mmio_map(sysbus, 1, BONITO_PCICONFIG_BASE);
|
735 |
|
736 |
/* set the south bridge pci configure mapping */
|
737 |
memory_region_init_io(&phb->data_mem, &bonito_spciconf_ops, s, |
738 |
"south-bridge-pci-config", BONITO_SPCICONFIG_SIZE);
|
739 |
sysbus_init_mmio(sysbus, &phb->data_mem); |
740 |
sysbus_mmio_map(sysbus, 2, BONITO_SPCICONFIG_BASE);
|
741 |
|
742 |
memory_region_init_io(&s->iomem_ldma, &bonito_ldma_ops, s, |
743 |
"ldma", 0x100); |
744 |
sysbus_init_mmio(sysbus, &s->iomem_ldma); |
745 |
sysbus_mmio_map(sysbus, 3, 0xbfe00200); |
746 |
|
747 |
memory_region_init_io(&s->iomem_cop, &bonito_cop_ops, s, |
748 |
"cop", 0x100); |
749 |
sysbus_init_mmio(sysbus, &s->iomem_cop); |
750 |
sysbus_mmio_map(sysbus, 4, 0xbfe00300); |
751 |
|
752 |
/* Map PCI IO Space 0x1fd0 0000 - 0x1fd1 0000 */
|
753 |
s->bonito_pciio_start = BONITO_PCIIO_BASE; |
754 |
s->bonito_pciio_length = BONITO_PCIIO_SIZE; |
755 |
isa_mem_base = s->bonito_pciio_start; |
756 |
isa_mmio_init(s->bonito_pciio_start, s->bonito_pciio_length); |
757 |
|
758 |
/* add pci local io mapping */
|
759 |
s->bonito_localio_start = BONITO_DEV_BASE; |
760 |
s->bonito_localio_length = BONITO_DEV_SIZE; |
761 |
isa_mmio_init(s->bonito_localio_start, s->bonito_localio_length); |
762 |
|
763 |
/* set the default value of north bridge pci config */
|
764 |
pci_set_word(dev->config + PCI_COMMAND, 0x0000);
|
765 |
pci_set_word(dev->config + PCI_STATUS, 0x0000);
|
766 |
pci_set_word(dev->config + PCI_SUBSYSTEM_VENDOR_ID, 0x0000);
|
767 |
pci_set_word(dev->config + PCI_SUBSYSTEM_ID, 0x0000);
|
768 |
|
769 |
pci_set_byte(dev->config + PCI_INTERRUPT_LINE, 0x00);
|
770 |
pci_set_byte(dev->config + PCI_INTERRUPT_PIN, 0x01);
|
771 |
pci_set_byte(dev->config + PCI_MIN_GNT, 0x3c);
|
772 |
pci_set_byte(dev->config + PCI_MAX_LAT, 0x00);
|
773 |
|
774 |
qemu_register_reset(bonito_reset, s); |
775 |
|
776 |
return 0; |
777 |
} |
778 |
|
779 |
PCIBus *bonito_init(qemu_irq *pic) |
780 |
{ |
781 |
DeviceState *dev; |
782 |
BonitoState *pcihost; |
783 |
PCIHostState *phb; |
784 |
PCIBonitoState *s; |
785 |
PCIDevice *d; |
786 |
|
787 |
dev = qdev_create(NULL, TYPE_BONITO_PCI_HOST_BRIDGE);
|
788 |
phb = FROM_SYSBUS(PCIHostState, sysbus_from_qdev(dev)); |
789 |
pcihost = BONITO_PCI_HOST_BRIDGE(dev); |
790 |
pcihost->pic = pic; |
791 |
qdev_init_nofail(dev); |
792 |
|
793 |
/* set the pcihost pointer before bonito_initfn is called */
|
794 |
d = pci_create(phb->bus, PCI_DEVFN(0, 0), "Bonito"); |
795 |
s = DO_UPCAST(PCIBonitoState, dev, d); |
796 |
s->pcihost = pcihost; |
797 |
pcihost->pci_dev = s; |
798 |
qdev_init_nofail(DEVICE(d)); |
799 |
|
800 |
return phb->bus;
|
801 |
} |
802 |
|
803 |
static void bonito_class_init(ObjectClass *klass, void *data) |
804 |
{ |
805 |
DeviceClass *dc = DEVICE_CLASS(klass); |
806 |
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
807 |
|
808 |
k->init = bonito_initfn; |
809 |
k->vendor_id = 0xdf53;
|
810 |
k->device_id = 0x00d5;
|
811 |
k->revision = 0x01;
|
812 |
k->class_id = PCI_CLASS_BRIDGE_HOST; |
813 |
dc->desc = "Host bridge";
|
814 |
dc->no_user = 1;
|
815 |
dc->vmsd = &vmstate_bonito; |
816 |
} |
817 |
|
818 |
static const TypeInfo bonito_info = { |
819 |
.name = "Bonito",
|
820 |
.parent = TYPE_PCI_DEVICE, |
821 |
.instance_size = sizeof(PCIBonitoState),
|
822 |
.class_init = bonito_class_init, |
823 |
}; |
824 |
|
825 |
static void bonito_pcihost_class_init(ObjectClass *klass, void *data) |
826 |
{ |
827 |
DeviceClass *dc = DEVICE_CLASS(klass); |
828 |
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
829 |
|
830 |
k->init = bonito_pcihost_initfn; |
831 |
dc->no_user = 1;
|
832 |
} |
833 |
|
834 |
static const TypeInfo bonito_pcihost_info = { |
835 |
.name = TYPE_BONITO_PCI_HOST_BRIDGE, |
836 |
.parent = TYPE_SYS_BUS_DEVICE, |
837 |
.instance_size = sizeof(BonitoState),
|
838 |
.class_init = bonito_pcihost_class_init, |
839 |
}; |
840 |
|
841 |
static void bonito_register_types(void) |
842 |
{ |
843 |
type_register_static(&bonito_pcihost_info); |
844 |
type_register_static(&bonito_info); |
845 |
} |
846 |
|
847 |
type_init(bonito_register_types) |