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hw/sd: sd: Only SDSC cards support CMD28/29/30

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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>
This commit is contained in:
Bin Meng 2021-02-16 23:02:19 +08:00 committed by Philippe Mathieu-Daudé
parent 64ea2d9f74
commit 245c05134f
1 changed files with 12 additions and 0 deletions
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12
hw/sd/sd.c
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@ -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;