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-rw-r--r--drivers/mmc/dw_mmc.c23
-rw-r--r--drivers/mmc/mmc.c68
-rw-r--r--drivers/mmc/mmc_write.c9
-rw-r--r--drivers/mmc/sdhci.c105
-rw-r--r--include/mmc.h9
-rw-r--r--include/sdhci.h2
6 files changed, 164 insertions, 52 deletions
diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
index afc674d..074f86c 100644
--- a/drivers/mmc/dw_mmc.c
+++ b/drivers/mmc/dw_mmc.c
@@ -120,9 +120,9 @@ static int dwmci_data_transfer(struct dwmci_host *host, struct mmc_data *data)
if (host->fifo_mode && size) {
len = 0;
- if (data->flags == MMC_DATA_READ) {
- if ((dwmci_readl(host, DWMCI_RINTSTS) &
- DWMCI_INTMSK_RXDR)) {
+ if (data->flags == MMC_DATA_READ &&
+ (mask & DWMCI_INTMSK_RXDR)) {
+ while (size) {
len = dwmci_readl(host, DWMCI_STATUS);
len = (len >> DWMCI_FIFO_SHIFT) &
DWMCI_FIFO_MASK;
@@ -130,12 +130,13 @@ static int dwmci_data_transfer(struct dwmci_host *host, struct mmc_data *data)
for (i = 0; i < len; i++)
*buf++ =
dwmci_readl(host, DWMCI_DATA);
- dwmci_writel(host, DWMCI_RINTSTS,
- DWMCI_INTMSK_RXDR);
+ size = size > len ? (size - len) : 0;
}
- } else {
- if ((dwmci_readl(host, DWMCI_RINTSTS) &
- DWMCI_INTMSK_TXDR)) {
+ dwmci_writel(host, DWMCI_RINTSTS,
+ DWMCI_INTMSK_RXDR);
+ } else if (data->flags == MMC_DATA_WRITE &&
+ (mask & DWMCI_INTMSK_TXDR)) {
+ while (size) {
len = dwmci_readl(host, DWMCI_STATUS);
len = fifo_depth - ((len >>
DWMCI_FIFO_SHIFT) &
@@ -144,11 +145,11 @@ static int dwmci_data_transfer(struct dwmci_host *host, struct mmc_data *data)
for (i = 0; i < len; i++)
dwmci_writel(host, DWMCI_DATA,
*buf++);
- dwmci_writel(host, DWMCI_RINTSTS,
- DWMCI_INTMSK_TXDR);
+ size = size > len ? (size - len) : 0;
}
+ dwmci_writel(host, DWMCI_RINTSTS,
+ DWMCI_INTMSK_TXDR);
}
- size = size > len ? (size - len) : 0;
}
/* Data arrived correctly. */
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 43ea0bb..0312da9 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -21,6 +21,14 @@
#include <div64.h>
#include "mmc_private.h"
+static const unsigned int sd_au_size[] = {
+ 0, SZ_16K / 512, SZ_32K / 512,
+ SZ_64K / 512, SZ_128K / 512, SZ_256K / 512,
+ SZ_512K / 512, SZ_1M / 512, SZ_2M / 512,
+ SZ_4M / 512, SZ_8M / 512, (SZ_8M + SZ_4M) / 512,
+ SZ_16M / 512, (SZ_16M + SZ_8M) / 512, SZ_32M / 512, SZ_64M / 512,
+};
+
#ifndef CONFIG_DM_MMC_OPS
__weak int board_mmc_getwp(struct mmc *mmc)
{
@@ -945,6 +953,62 @@ retry_scr:
return 0;
}
+static int sd_read_ssr(struct mmc *mmc)
+{
+ int err, i;
+ struct mmc_cmd cmd;
+ ALLOC_CACHE_ALIGN_BUFFER(uint, ssr, 16);
+ struct mmc_data data;
+ int timeout = 3;
+ unsigned int au, eo, et, es;
+
+ cmd.cmdidx = MMC_CMD_APP_CMD;
+ cmd.resp_type = MMC_RSP_R1;
+ cmd.cmdarg = mmc->rca << 16;
+
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+ if (err)
+ return err;
+
+ cmd.cmdidx = SD_CMD_APP_SD_STATUS;
+ cmd.resp_type = MMC_RSP_R1;
+ cmd.cmdarg = 0;
+
+retry_ssr:
+ data.dest = (char *)ssr;
+ data.blocksize = 64;
+ data.blocks = 1;
+ data.flags = MMC_DATA_READ;
+
+ err = mmc_send_cmd(mmc, &cmd, &data);
+ if (err) {
+ if (timeout--)
+ goto retry_ssr;
+
+ return err;
+ }
+
+ for (i = 0; i < 16; i++)
+ ssr[i] = be32_to_cpu(ssr[i]);
+
+ au = (ssr[2] >> 12) & 0xF;
+ if ((au <= 9) || (mmc->version == SD_VERSION_3)) {
+ mmc->ssr.au = sd_au_size[au];
+ es = (ssr[3] >> 24) & 0xFF;
+ es |= (ssr[2] & 0xFF) << 8;
+ et = (ssr[3] >> 18) & 0x3F;
+ if (es && et) {
+ eo = (ssr[3] >> 16) & 0x3;
+ mmc->ssr.erase_timeout = (et * 1000) / es;
+ mmc->ssr.erase_offset = eo * 1000;
+ }
+ } else {
+ debug("Invalid Allocation Unit Size.\n");
+ }
+
+ return 0;
+}
+
/* frequency bases */
/* divided by 10 to be nice to platforms without floating point */
static const int fbase[] = {
@@ -1350,6 +1414,10 @@ static int mmc_startup(struct mmc *mmc)
mmc_set_bus_width(mmc, 4);
}
+ err = sd_read_ssr(mmc);
+ if (err)
+ return err;
+
if (mmc->card_caps & MMC_MODE_HS)
mmc->tran_speed = 50000000;
else
diff --git a/drivers/mmc/mmc_write.c b/drivers/mmc/mmc_write.c
index 0f8b5c7..2289640 100644
--- a/drivers/mmc/mmc_write.c
+++ b/drivers/mmc/mmc_write.c
@@ -100,8 +100,13 @@ unsigned long mmc_berase(struct blk_desc *block_dev, lbaint_t start,
& ~(mmc->erase_grp_size - 1)) - 1);
while (blk < blkcnt) {
- blk_r = ((blkcnt - blk) > mmc->erase_grp_size) ?
- mmc->erase_grp_size : (blkcnt - blk);
+ if (IS_SD(mmc) && mmc->ssr.au) {
+ blk_r = ((blkcnt - blk) > mmc->ssr.au) ?
+ mmc->ssr.au : (blkcnt - blk);
+ } else {
+ blk_r = ((blkcnt - blk) > mmc->erase_grp_size) ?
+ mmc->erase_grp_size : (blkcnt - blk);
+ }
err = mmc_erase_t(mmc, start + blk, blk_r);
if (err)
break;
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 7ddb549..b2bf5a0 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -121,13 +121,10 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data,
* for card ready state.
* Every time when card is busy after timeout then (last) timeout value will be
* increased twice but only if it doesn't exceed global defined maximum.
- * Each function call will use last timeout value. Max timeout can be redefined
- * in board config file.
+ * Each function call will use last timeout value.
*/
-#ifndef CONFIG_SDHCI_CMD_MAX_TIMEOUT
-#define CONFIG_SDHCI_CMD_MAX_TIMEOUT 3200
-#endif
-#define CONFIG_SDHCI_CMD_DEFAULT_TIMEOUT 100
+#define SDHCI_CMD_MAX_TIMEOUT 3200
+#define SDHCI_CMD_DEFAULT_TIMEOUT 100
#define SDHCI_READ_STATUS_TIMEOUT 1000
#ifdef CONFIG_DM_MMC_OPS
@@ -151,7 +148,7 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
unsigned start = get_timer(0);
/* Timeout unit - ms */
- static unsigned int cmd_timeout = CONFIG_SDHCI_CMD_DEFAULT_TIMEOUT;
+ static unsigned int cmd_timeout = SDHCI_CMD_DEFAULT_TIMEOUT;
sdhci_writel(host, SDHCI_INT_ALL_MASK, SDHCI_INT_STATUS);
mask = SDHCI_CMD_INHIBIT | SDHCI_DATA_INHIBIT;
@@ -164,7 +161,7 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
while (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) {
if (time >= cmd_timeout) {
printf("%s: MMC: %d busy ", __func__, mmc_dev);
- if (2 * cmd_timeout <= CONFIG_SDHCI_CMD_MAX_TIMEOUT) {
+ if (2 * cmd_timeout <= SDHCI_CMD_MAX_TIMEOUT) {
cmd_timeout += cmd_timeout;
printf("timeout increasing to: %u ms.\n",
cmd_timeout);
@@ -297,7 +294,7 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
static int sdhci_set_clock(struct mmc *mmc, unsigned int clock)
{
struct sdhci_host *host = mmc->priv;
- unsigned int div, clk, timeout, reg;
+ unsigned int div, clk = 0, timeout, reg;
/* Wait max 20 ms */
timeout = 200;
@@ -321,14 +318,36 @@ static int sdhci_set_clock(struct mmc *mmc, unsigned int clock)
return 0;
if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) {
- /* Version 3.00 divisors must be a multiple of 2. */
- if (mmc->cfg->f_max <= clock)
- div = 1;
- else {
- for (div = 2; div < SDHCI_MAX_DIV_SPEC_300; div += 2) {
- if ((mmc->cfg->f_max / div) <= clock)
+ /*
+ * Check if the Host Controller supports Programmable Clock
+ * Mode.
+ */
+ if (host->clk_mul) {
+ for (div = 1; div <= 1024; div++) {
+ if ((mmc->cfg->f_max * host->clk_mul / div)
+ <= clock)
break;
}
+
+ /*
+ * Set Programmable Clock Mode in the Clock
+ * Control register.
+ */
+ clk = SDHCI_PROG_CLOCK_MODE;
+ div--;
+ } else {
+ /* Version 3.00 divisors must be a multiple of 2. */
+ if (mmc->cfg->f_max <= clock) {
+ div = 1;
+ } else {
+ for (div = 2;
+ div < SDHCI_MAX_DIV_SPEC_300;
+ div += 2) {
+ if ((mmc->cfg->f_max / div) <= clock)
+ break;
+ }
+ }
+ div >>= 1;
}
} else {
/* Version 2.00 divisors must be a power of 2. */
@@ -336,13 +355,13 @@ static int sdhci_set_clock(struct mmc *mmc, unsigned int clock)
if ((mmc->cfg->f_max / div) <= clock)
break;
}
+ div >>= 1;
}
- div >>= 1;
if (host->set_clock)
host->set_clock(host->index, div);
- clk = (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
+ clk |= (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN)
<< SDHCI_DIVIDER_HI_SHIFT;
clk |= SDHCI_CLOCK_INT_EN;
@@ -451,6 +470,8 @@ static int sdhci_init(struct mmc *mmc)
{
struct sdhci_host *host = mmc->priv;
+ sdhci_reset(host, SDHCI_RESET_ALL);
+
if ((host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) && !aligned_buffer) {
aligned_buffer = memalign(8, 512*1024);
if (!aligned_buffer) {
@@ -514,9 +535,17 @@ static const struct mmc_ops sdhci_ops = {
int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
u32 max_clk, u32 min_clk)
{
- u32 caps;
+ u32 caps, caps_1;
caps = sdhci_readl(host, SDHCI_CAPABILITIES);
+
+#ifdef CONFIG_MMC_SDMA
+ if (!(caps & SDHCI_CAN_DO_SDMA)) {
+ printf("%s: Your controller doesn't support SDMA!!\n",
+ __func__);
+ return -EINVAL;
+ }
+#endif
host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
cfg->name = host->name;
@@ -534,8 +563,11 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
SDHCI_CLOCK_BASE_SHIFT;
cfg->f_max *= 1000000;
}
- if (cfg->f_max == 0)
+ if (cfg->f_max == 0) {
+ printf("%s: Hardware doesn't specify base clock frequency\n",
+ __func__);
return -EINVAL;
+ }
if (min_clk)
cfg->f_min = min_clk;
else {
@@ -552,6 +584,9 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
if (caps & SDHCI_CAN_VDD_180)
cfg->voltages |= MMC_VDD_165_195;
+ if (host->quirks & SDHCI_QUIRK_BROKEN_VOLTAGE)
+ cfg->voltages |= host->voltages;
+
cfg->host_caps = MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT;
if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) {
if (caps & SDHCI_CAN_DO_8BIT)
@@ -564,6 +599,14 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
+ /*
+ * In case of Host Controller v3.00, find out whether clock
+ * multiplier is supported.
+ */
+ caps_1 = sdhci_readl(host, SDHCI_CAPABILITIES_1);
+ host->clk_mul = (caps_1 & SDHCI_CLOCK_MUL_MASK) >>
+ SDHCI_CLOCK_MUL_SHIFT;
+
return 0;
}
@@ -575,27 +618,11 @@ int sdhci_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg)
#else
int add_sdhci(struct sdhci_host *host, u32 max_clk, u32 min_clk)
{
-#ifdef CONFIG_MMC_SDMA
- unsigned int caps;
-
- caps = sdhci_readl(host, SDHCI_CAPABILITIES);
- if (!(caps & SDHCI_CAN_DO_SDMA)) {
- printf("%s: Your controller doesn't support SDMA!!\n",
- __func__);
- return -1;
- }
-#endif
-
- if (sdhci_setup_cfg(&host->cfg, host, max_clk, min_clk)) {
- printf("%s: Hardware doesn't specify base clock frequency\n",
- __func__);
- return -EINVAL;
- }
+ int ret;
- if (host->quirks & SDHCI_QUIRK_BROKEN_VOLTAGE)
- host->cfg.voltages |= host->voltages;
-
- sdhci_reset(host, SDHCI_RESET_ALL);
+ ret = sdhci_setup_cfg(&host->cfg, host, max_clk, min_clk);
+ if (ret)
+ return ret;
host->mmc = mmc_create(&host->cfg, host);
if (host->mmc == NULL) {
diff --git a/include/mmc.h b/include/mmc.h
index aa6d5d1..e815eb3 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -11,6 +11,7 @@
#define _MMC_H_
#include <linux/list.h>
+#include <linux/sizes.h>
#include <linux/compiler.h>
#include <part.h>
@@ -102,6 +103,7 @@
#define SD_CMD_SWITCH_UHS18V 11
#define SD_CMD_APP_SET_BUS_WIDTH 6
+#define SD_CMD_APP_SD_STATUS 13
#define SD_CMD_ERASE_WR_BLK_START 32
#define SD_CMD_ERASE_WR_BLK_END 33
#define SD_CMD_APP_SEND_OP_COND 41
@@ -392,6 +394,12 @@ struct mmc_config {
unsigned char part_type;
};
+struct sd_ssr {
+ unsigned int au; /* In sectors */
+ unsigned int erase_timeout; /* In milliseconds */
+ unsigned int erase_offset; /* In milliseconds */
+};
+
/*
* With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device
* with mmc_get_mmc_dev().
@@ -426,6 +434,7 @@ struct mmc {
uint write_bl_len;
uint erase_grp_size; /* in 512-byte sectors */
uint hc_wp_grp_size; /* in 512-byte sectors */
+ struct sd_ssr ssr; /* SD status register */
u64 capacity;
u64 capacity_user;
u64 capacity_boot;
diff --git a/include/sdhci.h b/include/sdhci.h
index 6844c73..144570f 100644
--- a/include/sdhci.h
+++ b/include/sdhci.h
@@ -97,6 +97,7 @@
#define SDHCI_DIV_MASK 0xFF
#define SDHCI_DIV_MASK_LEN 8
#define SDHCI_DIV_HI_MASK 0x300
+#define SDHCI_PROG_CLOCK_MODE 0x0020
#define SDHCI_CLOCK_CARD_EN 0x0004
#define SDHCI_CLOCK_INT_STABLE 0x0002
#define SDHCI_CLOCK_INT_EN 0x0001
@@ -242,6 +243,7 @@ struct sdhci_host {
unsigned int quirks;
unsigned int host_caps;
unsigned int version;
+ unsigned int clk_mul; /* Clock Multiplier value */
unsigned int clock;
struct mmc *mmc;
const struct sdhci_ops *ops;
generated by cgit v0.10.2 at 2024-07-11 20:41:14 (GMT)