diff options
Diffstat (limited to 'hw/ssi/aspeed_smc.c')
| -rw-r--r-- | hw/ssi/aspeed_smc.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c index 5059396bc6..fce126e6ee 100644 --- a/hw/ssi/aspeed_smc.c +++ b/hw/ssi/aspeed_smc.c @@ -66,6 +66,8 @@ /* CEx Control Register */ #define R_CTRL0 (0x10 / 4) +#define CTRL_IO_DUAL_DATA (1 << 29) +#define CTRL_IO_DUAL_ADDR_DATA (1 << 28) /* Includes dummies */ #define CTRL_CMD_SHIFT 16 #define CTRL_CMD_MASK 0xff #define CTRL_DUMMY_HIGH_SHIFT 14 @@ -492,8 +494,13 @@ static int aspeed_smc_flash_dummies(const AspeedSMCFlash *fl) uint32_t r_ctrl0 = s->regs[s->r_ctrl0 + fl->id]; uint32_t dummy_high = (r_ctrl0 >> CTRL_DUMMY_HIGH_SHIFT) & 0x1; uint32_t dummy_low = (r_ctrl0 >> CTRL_DUMMY_LOW_SHIFT) & 0x3; + uint32_t dummies = ((dummy_high << 2) | dummy_low) * 8; - return ((dummy_high << 2) | dummy_low) * 8; + if (r_ctrl0 & CTRL_IO_DUAL_ADDR_DATA) { + dummies /= 2; + } + + return dummies; } static void aspeed_smc_flash_send_addr(AspeedSMCFlash *fl, uint32_t addr) |