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SD/MMC patches queue

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- Add SDHC support for SD card SPI-mode (Frank Chang)
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Merge remote-tracking branch 'remotes/philmd/tags/sdmmc-20220108' into staging

SD/MMC patches queue

- Add SDHC support for SD card SPI-mode (Frank Chang)

# gpg: Signature made Sat 08 Jan 2022 21:56:02 GMT
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd/tags/sdmmc-20220108:
  hw/sd: Add SDHC support for SD card SPI-mode
  hw/sd/sdcard: Rename Write Protect Group variables

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2022-01-11 11:39:31 +00:00
commit 64c01c7da4
1 changed files with 31 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
hw/sd/sd.c
View File

@ -116,8 +116,8 @@ struct SDState {
int32_t state; /* current card state, one of SDCardStates */
uint32_t vhs;
bool wp_switch;
unsigned long *wp_groups;
int32_t wpgrps_size;
unsigned long *wp_group_bmap;
int32_t wp_group_bits;
uint64_t size;
uint32_t blk_len;
uint32_t multi_blk_cnt;
@ -290,12 +290,6 @@ FIELD(OCR, CARD_POWER_UP, 31, 1)
| R_OCR_CARD_CAPACITY_MASK \
| R_OCR_CARD_POWER_UP_MASK)
static void sd_set_ocr(SDState *sd)
{
/* All voltages OK */
sd->ocr = R_OCR_VDD_VOLTAGE_WIN_HI_MASK;
}
static void sd_ocr_powerup(void *opaque)
{
SDState *sd = opaque;
@ -311,6 +305,22 @@ static void sd_ocr_powerup(void *opaque)
}
}
static void sd_set_ocr(SDState *sd)
{
/* All voltages OK */
sd->ocr = R_OCR_VDD_VOLTAGE_WIN_HI_MASK;
if (sd->spi) {
/*
* We don't need to emulate power up sequence in SPI-mode.
* Thus, the card's power up status bit should be set to 1 when reset.
* The card's capacity status bit should also be set if SD card size
* is larger than 2GB for SDHC support.
*/
sd_ocr_powerup(sd);
}
}
static void sd_set_scr(SDState *sd)
{
sd->scr[0] = 0 << 4; /* SCR structure version 1.0 */
@ -560,6 +570,7 @@ static void sd_reset(DeviceState *dev)
sd->state = sd_idle_state;
sd->rca = 0x0000;
sd->size = size;
sd_set_ocr(sd);
sd_set_scr(sd);
sd_set_cid(sd);
@ -567,14 +578,13 @@ static void sd_reset(DeviceState *dev)
sd_set_cardstatus(sd);
sd_set_sdstatus(sd);
g_free(sd->wp_groups);
g_free(sd->wp_group_bmap);
sd->wp_switch = sd->blk ? !blk_is_writable(sd->blk) : false;
sd->wpgrps_size = sect;
sd->wp_groups = bitmap_new(sd->wpgrps_size);
sd->wp_group_bits = sect;
sd->wp_group_bmap = bitmap_new(sd->wp_group_bits);
memset(sd->function_group, 0, sizeof(sd->function_group));
sd->erase_start = INVALID_ADDRESS;
sd->erase_end = INVALID_ADDRESS;
sd->size = size;
sd->blk_len = 0x200;
sd->pwd_len = 0;
sd->expecting_acmd = false;
@ -673,7 +683,7 @@ static const VMStateDescription sd_vmstate = {
VMSTATE_UINT32(card_status, SDState),
VMSTATE_PARTIAL_BUFFER(sd_status, SDState, 1),
VMSTATE_UINT32(vhs, SDState),
VMSTATE_BITMAP(wp_groups, SDState, 0, wpgrps_size),
VMSTATE_BITMAP(wp_group_bmap, SDState, 0, wp_group_bits),
VMSTATE_UINT32(blk_len, SDState),
VMSTATE_UINT32(multi_blk_cnt, SDState),
VMSTATE_UINT32(erase_start, SDState),
@ -803,8 +813,8 @@ static void sd_erase(SDState *sd)
if (sdsc) {
/* Only SDSC cards support write protect groups */
wpnum = sd_addr_to_wpnum(erase_addr);
assert(wpnum < sd->wpgrps_size);
if (test_bit(wpnum, sd->wp_groups)) {
assert(wpnum < sd->wp_group_bits);
if (test_bit(wpnum, sd->wp_group_bmap)) {
sd->card_status |= WP_ERASE_SKIP;
continue;
}
@ -828,8 +838,8 @@ static uint32_t sd_wpbits(SDState *sd, uint64_t addr)
*/
continue;
}
assert(wpnum < sd->wpgrps_size);
if (test_bit(wpnum, sd->wp_groups)) {
assert(wpnum < sd->wp_group_bits);
if (test_bit(wpnum, sd->wp_group_bmap)) {
ret |= (1 << i);
}
}
@ -869,7 +879,7 @@ static void sd_function_switch(SDState *sd, uint32_t arg)
static inline bool sd_wp_addr(SDState *sd, uint64_t addr)
{
return test_bit(sd_addr_to_wpnum(addr), sd->wp_groups);
return test_bit(sd_addr_to_wpnum(addr), sd->wp_group_bmap);
}
static void sd_lock_command(SDState *sd)
@ -897,7 +907,7 @@ static void sd_lock_command(SDState *sd)
sd->card_status |= LOCK_UNLOCK_FAILED;
return;
}
bitmap_zero(sd->wp_groups, sd->wpgrps_size);
bitmap_zero(sd->wp_group_bmap, sd->wp_group_bits);
sd->csd[14] &= ~0x10;
sd->card_status &= ~CARD_IS_LOCKED;
sd->pwd_len = 0;
@ -1348,7 +1358,7 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req)
}
sd->state = sd_programming_state;
set_bit(sd_addr_to_wpnum(addr), sd->wp_groups);
set_bit(sd_addr_to_wpnum(addr), sd->wp_group_bmap);
/* Bzzzzzzztt .... Operation complete. */
sd->state = sd_transfer_state;
return sd_r1b;
@ -1370,7 +1380,7 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req)
}
sd->state = sd_programming_state;
clear_bit(sd_addr_to_wpnum(addr), sd->wp_groups);
clear_bit(sd_addr_to_wpnum(addr), sd->wp_group_bmap);
/* Bzzzzzzztt .... Operation complete. */
sd->state = sd_transfer_state;
return sd_r1b;