diff options
Diffstat (limited to 'hw/misc/aspeed_sdmc.c')
| -rw-r--r-- | hw/misc/aspeed_sdmc.c | 194 |
1 files changed, 191 insertions, 3 deletions
diff --git a/hw/misc/aspeed_sdmc.c b/hw/misc/aspeed_sdmc.c index 873d67c592..93e2e29ead 100644 --- a/hw/misc/aspeed_sdmc.c +++ b/hw/misc/aspeed_sdmc.c @@ -27,6 +27,7 @@ #define PROT_SOFTLOCKED 0x00 #define PROT_KEY_UNLOCK 0xFC600309 +#define PROT_2700_KEY_UNLOCK 0x1688A8A8 #define PROT_KEY_HARDLOCK 0xDEADDEAD /* AST2600 */ /* Configuration Register */ @@ -54,6 +55,46 @@ #define R_DRAM_TIME (0x8c / 4) #define R_ECC_ERR_INJECT (0xb4 / 4) +/* AST2700 Register */ +#define R_2700_PROT (0x00 / 4) +#define R_INT_STATUS (0x04 / 4) +#define R_INT_CLEAR (0x08 / 4) +#define R_INT_MASK (0x0c / 4) +#define R_MAIN_CONF (0x10 / 4) +#define R_MAIN_CONTROL (0x14 / 4) +#define R_MAIN_STATUS (0x18 / 4) +#define R_ERR_STATUS (0x1c / 4) +#define R_ECC_FAIL_STATUS (0x78 / 4) +#define R_ECC_FAIL_ADDR (0x7c / 4) +#define R_ECC_TESTING_CONTROL (0x80 / 4) +#define R_PROT_REGION_LOCK_STATUS (0x94 / 4) +#define R_TEST_FAIL_ADDR (0xd4 / 4) +#define R_TEST_FAIL_D0 (0xd8 / 4) +#define R_TEST_FAIL_D1 (0xdc / 4) +#define R_TEST_FAIL_D2 (0xe0 / 4) +#define R_TEST_FAIL_D3 (0xe4 / 4) +#define R_DBG_STATUS (0xf4 / 4) +#define R_PHY_INTERFACE_STATUS (0xf8 / 4) +#define R_GRAPHIC_MEM_BASE_ADDR (0x10c / 4) +#define R_PORT0_INTERFACE_MONITOR0 (0x240 / 4) +#define R_PORT0_INTERFACE_MONITOR1 (0x244 / 4) +#define R_PORT0_INTERFACE_MONITOR2 (0x248 / 4) +#define R_PORT1_INTERFACE_MONITOR0 (0x2c0 / 4) +#define R_PORT1_INTERFACE_MONITOR1 (0x2c4 / 4) +#define R_PORT1_INTERFACE_MONITOR2 (0x2c8 / 4) +#define R_PORT2_INTERFACE_MONITOR0 (0x340 / 4) +#define R_PORT2_INTERFACE_MONITOR1 (0x344 / 4) +#define R_PORT2_INTERFACE_MONITOR2 (0x348 / 4) +#define R_PORT3_INTERFACE_MONITOR0 (0x3c0 / 4) +#define R_PORT3_INTERFACE_MONITOR1 (0x3c4 / 4) +#define R_PORT3_INTERFACE_MONITOR2 (0x3c8 / 4) +#define R_PORT4_INTERFACE_MONITOR0 (0x440 / 4) +#define R_PORT4_INTERFACE_MONITOR1 (0x444 / 4) +#define R_PORT4_INTERFACE_MONITOR2 (0x448 / 4) +#define R_PORT5_INTERFACE_MONITOR0 (0x4c0 / 4) +#define R_PORT5_INTERFACE_MONITOR1 (0x4c4 / 4) +#define R_PORT5_INTERFACE_MONITOR2 (0x4c8 / 4) + /* * Configuration register Ox4 (for Aspeed AST2400 SOC) * @@ -101,6 +142,19 @@ ASPEED_SDMC_AST2500_RESERVED | ASPEED_SDMC_VGA_COMPAT | \ ASPEED_SDMC_VGA_APERTURE(ASPEED_SDMC_VGA_64MB)) +/* + * Main Configuration register Ox10 (for Aspeed AST2700 SOC and higher) + * + */ +#define ASPEED_SDMC_AST2700_RESERVED 0xFFFF2082 /* 31:16, 13, 7, 1 */ +#define ASPEED_SDMC_AST2700_DATA_SCRAMBLE (1 << 8) +#define ASPEED_SDMC_AST2700_ECC_ENABLE (1 << 6) +#define ASPEED_SDMC_AST2700_PAGE_MATCHING_ENABLE (1 << 5) +#define ASPEED_SDMC_AST2700_DRAM_SIZE(x) ((x & 0x7) << 2) + +#define ASPEED_SDMC_AST2700_READONLY_MASK \ + (ASPEED_SDMC_AST2700_RESERVED) + static uint64_t aspeed_sdmc_read(void *opaque, hwaddr addr, unsigned size) { AspeedSDMCState *s = ASPEED_SDMC(opaque); @@ -216,7 +270,7 @@ static void aspeed_sdmc_realize(DeviceState *dev, Error **errp) AspeedSDMCState *s = ASPEED_SDMC(dev); AspeedSDMCClass *asc = ASPEED_SDMC_GET_CLASS(s); - assert(asc->max_ram_size < 4 * GiB); /* 32-bit address bus */ + assert(asc->max_ram_size < 4 * GiB || asc->is_bus64bit); s->max_ram_size = asc->max_ram_size; memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_sdmc_ops, s, @@ -226,8 +280,8 @@ static void aspeed_sdmc_realize(DeviceState *dev, Error **errp) static const VMStateDescription vmstate_aspeed_sdmc = { .name = "aspeed.sdmc", - .version_id = 1, - .minimum_version_id = 1, + .version_id = 2, + .minimum_version_id = 2, .fields = (const VMStateField[]) { VMSTATE_UINT32_ARRAY(regs, AspeedSDMCState, ASPEED_SDMC_NR_REGS), VMSTATE_END_OF_LIST() @@ -236,6 +290,7 @@ static const VMStateDescription vmstate_aspeed_sdmc = { static Property aspeed_sdmc_properties[] = { DEFINE_PROP_UINT64("max-ram-size", AspeedSDMCState, max_ram_size, 0), + DEFINE_PROP_BOOL("unlocked", AspeedSDMCState, unlocked, false), DEFINE_PROP_END_OF_LIST(), }; @@ -500,12 +555,145 @@ static const TypeInfo aspeed_2600_sdmc_info = { .class_init = aspeed_2600_sdmc_class_init, }; +static void aspeed_2700_sdmc_reset(DeviceState *dev) +{ + AspeedSDMCState *s = ASPEED_SDMC(dev); + AspeedSDMCClass *asc = ASPEED_SDMC_GET_CLASS(s); + + memset(s->regs, 0, sizeof(s->regs)); + + /* Set ram size bit and defaults values */ + s->regs[R_MAIN_CONF] = asc->compute_conf(s, 0); + + if (s->unlocked) { + s->regs[R_2700_PROT] = PROT_UNLOCKED; + } +} + +static uint32_t aspeed_2700_sdmc_compute_conf(AspeedSDMCState *s, uint32_t data) +{ + uint32_t fixed_conf = ASPEED_SDMC_AST2700_PAGE_MATCHING_ENABLE | + ASPEED_SDMC_AST2700_DRAM_SIZE(aspeed_sdmc_get_ram_bits(s)); + + /* Make sure readonly bits are kept */ + data &= ~ASPEED_SDMC_AST2700_READONLY_MASK; + + return data | fixed_conf; +} + +static void aspeed_2700_sdmc_write(AspeedSDMCState *s, uint32_t reg, + uint32_t data) +{ + /* Unprotected registers */ + switch (reg) { + case R_INT_STATUS: + case R_INT_CLEAR: + case R_INT_MASK: + case R_MAIN_STATUS: + case R_ERR_STATUS: + case R_ECC_FAIL_STATUS: + case R_ECC_FAIL_ADDR: + case R_PROT_REGION_LOCK_STATUS: + case R_TEST_FAIL_ADDR: + case R_TEST_FAIL_D0: + case R_TEST_FAIL_D1: + case R_TEST_FAIL_D2: + case R_TEST_FAIL_D3: + case R_DBG_STATUS: + case R_PHY_INTERFACE_STATUS: + case R_GRAPHIC_MEM_BASE_ADDR: + case R_PORT0_INTERFACE_MONITOR0: + case R_PORT0_INTERFACE_MONITOR1: + case R_PORT0_INTERFACE_MONITOR2: + case R_PORT1_INTERFACE_MONITOR0: + case R_PORT1_INTERFACE_MONITOR1: + case R_PORT1_INTERFACE_MONITOR2: + case R_PORT2_INTERFACE_MONITOR0: + case R_PORT2_INTERFACE_MONITOR1: + case R_PORT2_INTERFACE_MONITOR2: + case R_PORT3_INTERFACE_MONITOR0: + case R_PORT3_INTERFACE_MONITOR1: + case R_PORT3_INTERFACE_MONITOR2: + case R_PORT4_INTERFACE_MONITOR0: + case R_PORT4_INTERFACE_MONITOR1: + case R_PORT4_INTERFACE_MONITOR2: + case R_PORT5_INTERFACE_MONITOR0: + case R_PORT5_INTERFACE_MONITOR1: + case R_PORT5_INTERFACE_MONITOR2: + s->regs[reg] = data; + return; + } + + if (s->regs[R_2700_PROT] == PROT_HARDLOCKED) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: SDMC is locked until system reset!\n", + __func__); + return; + } + + if (reg != R_2700_PROT && s->regs[R_2700_PROT] == PROT_SOFTLOCKED) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: SDMC is locked! (write to MCR%02x blocked)\n", + __func__, reg * 4); + return; + } + + switch (reg) { + case R_2700_PROT: + if (data == PROT_2700_KEY_UNLOCK) { + data = PROT_UNLOCKED; + } else if (data == PROT_KEY_HARDLOCK) { + data = PROT_HARDLOCKED; + } else { + data = PROT_SOFTLOCKED; + } + break; + case R_MAIN_CONF: + data = aspeed_2700_sdmc_compute_conf(s, data); + break; + case R_MAIN_STATUS: + /* Will never return 'busy'. */ + data &= ~PHY_BUSY_STATE; + break; + default: + break; + } + + s->regs[reg] = data; +} + +static const uint64_t + aspeed_2700_ram_sizes[] = { 256 * MiB, 512 * MiB, 1024 * MiB, + 2048 * MiB, 4096 * MiB, 8192 * MiB, 0}; + +static void aspeed_2700_sdmc_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + AspeedSDMCClass *asc = ASPEED_SDMC_CLASS(klass); + + dc->desc = "ASPEED 2700 SDRAM Memory Controller"; + dc->reset = aspeed_2700_sdmc_reset; + + asc->is_bus64bit = true; + asc->max_ram_size = 8 * GiB; + asc->compute_conf = aspeed_2700_sdmc_compute_conf; + asc->write = aspeed_2700_sdmc_write; + asc->valid_ram_sizes = aspeed_2700_ram_sizes; +} + +static const TypeInfo aspeed_2700_sdmc_info = { + .name = TYPE_ASPEED_2700_SDMC, + .parent = TYPE_ASPEED_SDMC, + .class_init = aspeed_2700_sdmc_class_init, +}; + static void aspeed_sdmc_register_types(void) { type_register_static(&aspeed_sdmc_info); type_register_static(&aspeed_2400_sdmc_info); type_register_static(&aspeed_2500_sdmc_info); type_register_static(&aspeed_2600_sdmc_info); + type_register_static(&aspeed_2700_sdmc_info); } type_init(aspeed_sdmc_register_types); |