diff options
| -rw-r--r-- | hw/ssi/aspeed_smc.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c index 331a2c5446..715f85007d 100644 --- a/hw/ssi/aspeed_smc.c +++ b/hw/ssi/aspeed_smc.c @@ -124,6 +124,13 @@ /* SPI dummy cycle data */ #define R_DUMMY_DATA (0x54 / 4) +/* FMC_WDT2 Control/Status Register for Alternate Boot (AST2600) */ +#define R_FMC_WDT2_CTRL (0x64 / 4) +#define FMC_WDT2_CTRL_ALT_BOOT_MODE BIT(6) /* O: 2 chips 1: 1 chip */ +#define FMC_WDT2_CTRL_SINGLE_BOOT_MODE BIT(5) +#define FMC_WDT2_CTRL_BOOT_SOURCE BIT(4) /* O: primary 1: alternate */ +#define FMC_WDT2_CTRL_EN BIT(0) + /* DMA Control/Status Register */ #define R_DMA_CTRL (0x80 / 4) #define DMA_CTRL_REQUEST (1 << 31) @@ -263,12 +270,18 @@ static void aspeed_2600_smc_dma_ctrl(AspeedSMCState *s, uint32_t value); #define ASPEED_SMC_FEATURE_DMA 0x1 #define ASPEED_SMC_FEATURE_DMA_GRANT 0x2 +#define ASPEED_SMC_FEATURE_WDT_CONTROL 0x4 static inline bool aspeed_smc_has_dma(const AspeedSMCState *s) { return !!(s->ctrl->features & ASPEED_SMC_FEATURE_DMA); } +static inline bool aspeed_smc_has_wdt_control(const AspeedSMCState *s) +{ + return !!(s->ctrl->features & ASPEED_SMC_FEATURE_WDT_CONTROL); +} + static const AspeedSMCController controllers[] = { { .name = "aspeed.smc-ast2400", @@ -388,7 +401,8 @@ static const AspeedSMCController controllers[] = { .segments = aspeed_segments_ast2600_fmc, .flash_window_base = ASPEED26_SOC_FMC_FLASH_BASE, .flash_window_size = 0x10000000, - .features = ASPEED_SMC_FEATURE_DMA, + .features = ASPEED_SMC_FEATURE_DMA | + ASPEED_SMC_FEATURE_WDT_CONTROL, .dma_flash_mask = 0x0FFFFFFC, .dma_dram_mask = 0x3FFFFFFC, .nregs = ASPEED_SMC_R_MAX, @@ -1019,6 +1033,7 @@ static uint64_t aspeed_smc_read(void *opaque, hwaddr addr, unsigned int size) addr == R_CE_CMD_CTRL || addr == R_INTR_CTRL || addr == R_DUMMY_DATA || + (aspeed_smc_has_wdt_control(s) && addr == R_FMC_WDT2_CTRL) || (aspeed_smc_has_dma(s) && addr == R_DMA_CTRL) || (aspeed_smc_has_dma(s) && addr == R_DMA_FLASH_ADDR) || (aspeed_smc_has_dma(s) && addr == R_DMA_DRAM_ADDR) || @@ -1350,6 +1365,8 @@ static void aspeed_smc_write(void *opaque, hwaddr addr, uint64_t data, s->regs[addr] = value & 0xff; } else if (addr == R_DUMMY_DATA) { s->regs[addr] = value & 0xff; + } else if (aspeed_smc_has_wdt_control(s) && addr == R_FMC_WDT2_CTRL) { + s->regs[addr] = value & FMC_WDT2_CTRL_EN; } else if (addr == R_INTR_CTRL) { s->regs[addr] = value; } else if (aspeed_smc_has_dma(s) && addr == R_DMA_CTRL) { |