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| author | Bin Meng <bin.meng@windriver.com> | 2021-02-16 23:02:19 +0800 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2021-02-20 00:17:09 +0100 |
| commit | 245c05134fcf642491eec04e4449f70e043e1b2e (patch) | |
| tree | 3198402eac3379c9032f53742aba7d5c22beb554 /hw/sd/sd.c | |
| parent | 64ea2d9f74a824269f2f564632bda52d60ae9243 (diff) | |
| download | focaccia-qemu-245c05134fcf642491eec04e4449f70e043e1b2e.tar.gz focaccia-qemu-245c05134fcf642491eec04e4449f70e043e1b2e.zip | |
hw/sd: sd: Only SDSC cards support CMD28/29/30
Per the "Physical Layer Specification Version 8.00", table 4-26 (SD mode) and table 7-3 (SPI mode) command descriptions, the following commands: - CMD28 (SET_WRITE_PROT) - CMD29 (CLR_WRITE_PROT) - CMD30 (SEND_WRITE_PROT) are only supported by SDSC cards. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210216150225.27996-3-bmeng.cn@gmail.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Diffstat (limited to 'hw/sd/sd.c')
| -rw-r--r-- | hw/sd/sd.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 7adcb4edfa..dd1ce0bdae 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -1284,6 +1284,10 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req) /* Write protection (Class 6) */ case 28: /* CMD28: SET_WRITE_PROT */ + if (sd->size > SDSC_MAX_CAPACITY) { + return sd_illegal; + } + switch (sd->state) { case sd_transfer_state: if (addr >= sd->size) { @@ -1303,6 +1307,10 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req) break; case 29: /* CMD29: CLR_WRITE_PROT */ + if (sd->size > SDSC_MAX_CAPACITY) { + return sd_illegal; + } + switch (sd->state) { case sd_transfer_state: if (addr >= sd->size) { @@ -1322,6 +1330,10 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req) break; case 30: /* CMD30: SEND_WRITE_PROT */ + if (sd->size > SDSC_MAX_CAPACITY) { + return sd_illegal; + } + switch (sd->state) { case sd_transfer_state: sd->state = sd_sendingdata_state; |