diff options
| -rw-r--r-- | hw/sd/sd.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 2e0ef3e5aa..346d86f69c 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -43,6 +43,8 @@ do { fprintf(stderr, "SD: " fmt , ## __VA_ARGS__); } while (0) #define DPRINTF(fmt, ...) do {} while(0) #endif +#define ACMD41_ENQUIRY_MASK 0x00ffffff + typedef enum { sd_r0 = 0, /* no response */ sd_r1, /* normal response command */ @@ -1277,9 +1279,14 @@ static sd_rsp_type_t sd_app_command(SDState *sd, } switch (sd->state) { case sd_idle_state: - /* We accept any voltage. 10000 V is nothing. */ - if (req.arg) + /* We accept any voltage. 10000 V is nothing. + * + * We don't model init delay so just advance straight to ready state + * unless it's an enquiry ACMD41 (bits 23:0 == 0). + */ + if (req.arg & ACMD41_ENQUIRY_MASK) { sd->state = sd_ready_state; + } return sd_r3; |