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-rw-r--r--drivers/mmc/Kconfig14
-rw-r--r--drivers/mmc/fsl_esdhc.c41
-rw-r--r--drivers/mmc/sdhci.c188
-rw-r--r--include/sdhci.h44
4 files changed, 233 insertions, 54 deletions
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig
index e96e693707..c23299ea96 100644
--- a/drivers/mmc/Kconfig
+++ b/drivers/mmc/Kconfig
@@ -391,6 +391,20 @@ config MMC_SDHCI_SDMA
This enables support for the SDMA (Single Operation DMA) defined
in the SD Host Controller Standard Specification Version 1.00 .
+config MMC_SDHCI_ADMA
+ bool "Support SDHCI ADMA2"
+ depends on MMC_SDHCI
+ help
+ This enables support for the ADMA (Advanced DMA) defined
+ in the SD Host Controller Standard Specification Version 3.00
+
+config SPL_MMC_SDHCI_ADMA
+ bool "Support SDHCI ADMA2 in SPL"
+ depends on MMC_SDHCI
+ help
+ This enables support for the ADMA (Advanced DMA) defined
+ in the SD Host Controller Standard Specification Version 3.00 in SPL.
+
config MMC_SDHCI_ATMEL
bool "Atmel SDHCI controller support"
depends on ARCH_AT91
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index 9e34557d16..1b7de74a72 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -297,6 +297,13 @@ static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc,
printf("\nThe SD card is locked. Can not write to a locked card.\n\n");
return -ETIMEDOUT;
}
+ } else {
+#ifdef CONFIG_DM_GPIO
+ if (dm_gpio_is_valid(&priv->wp_gpio) && dm_gpio_get_value(&priv->wp_gpio)) {
+ printf("\nThe SD card is locked. Can not write to a locked card.\n\n");
+ return -ETIMEDOUT;
+ }
+#endif
}
esdhc_clrsetbits32(&regs->wml, WML_WR_WML_MASK,
@@ -614,18 +621,31 @@ static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock)
#else
int pre_div = 2;
#endif
- int ddr_pre_div = mmc->ddr_mode ? 2 : 1;
int sdhc_clk = priv->sdhc_clk;
uint clk;
+ /*
+ * For ddr mode, usdhc need to enable DDR mode first, after select
+ * this DDR mode, usdhc will automatically divide the usdhc clock
+ */
+ if (mmc->ddr_mode) {
+ writel(readl(&regs->mixctrl) | MIX_CTRL_DDREN, &regs->mixctrl);
+ sdhc_clk >>= 1;
+ }
+
if (clock < mmc->cfg->f_min)
clock = mmc->cfg->f_min;
- while (sdhc_clk / (16 * pre_div * ddr_pre_div) > clock && pre_div < 256)
- pre_div *= 2;
+ if (sdhc_clk / 16 > clock) {
+ for (; pre_div < 256; pre_div *= 2)
+ if ((sdhc_clk / pre_div) <= (clock * 16))
+ break;
+ } else
+ pre_div = 1;
- while (sdhc_clk / (div * pre_div * ddr_pre_div) > clock && div < 16)
- div++;
+ for (div = 1; div <= 16; div++)
+ if ((sdhc_clk / (div * pre_div)) <= clock)
+ break;
pre_div >>= 1;
div -= 1;
@@ -1489,14 +1509,15 @@ static int fsl_esdhc_probe(struct udevice *dev)
#endif
}
- priv->wp_enable = 1;
-
+ if (dev_read_prop(dev, "fsl,wp-controller", NULL)) {
+ priv->wp_enable = 1;
+ } else {
+ priv->wp_enable = 0;
#ifdef CONFIG_DM_GPIO
- ret = gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio,
+ gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio,
GPIOD_IS_IN);
- if (ret)
- priv->wp_enable = 0;
#endif
+ }
priv->vs18_enable = 0;
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index cdeba914f9..e2bb90abbd 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -67,17 +67,123 @@ static void sdhci_transfer_pio(struct sdhci_host *host, struct mmc_data *data)
}
}
-static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data,
- unsigned int start_addr)
+#if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA)
+static void sdhci_adma_desc(struct sdhci_host *host, char *buf, u16 len,
+ bool end)
+{
+ struct sdhci_adma_desc *desc;
+ u8 attr;
+
+ desc = &host->adma_desc_table[host->desc_slot];
+
+ attr = ADMA_DESC_ATTR_VALID | ADMA_DESC_TRANSFER_DATA;
+ if (!end)
+ host->desc_slot++;
+ else
+ attr |= ADMA_DESC_ATTR_END;
+
+ desc->attr = attr;
+ desc->len = len;
+ desc->reserved = 0;
+ desc->addr_lo = (dma_addr_t)buf;
+#ifdef CONFIG_DMA_ADDR_T_64BIT
+ desc->addr_hi = (u64)buf >> 32;
+#endif
+}
+
+static void sdhci_prepare_adma_table(struct sdhci_host *host,
+ struct mmc_data *data)
+{
+ uint trans_bytes = data->blocksize * data->blocks;
+ uint desc_count = DIV_ROUND_UP(trans_bytes, ADMA_MAX_LEN);
+ int i = desc_count;
+ char *buf;
+
+ host->desc_slot = 0;
+
+ if (data->flags & MMC_DATA_READ)
+ buf = data->dest;
+ else
+ buf = (char *)data->src;
+
+ while (--i) {
+ sdhci_adma_desc(host, buf, ADMA_MAX_LEN, false);
+ buf += ADMA_MAX_LEN;
+ trans_bytes -= ADMA_MAX_LEN;
+ }
+
+ sdhci_adma_desc(host, buf, trans_bytes, true);
+
+ flush_cache((dma_addr_t)host->adma_desc_table,
+ ROUND(desc_count * sizeof(struct sdhci_adma_desc),
+ ARCH_DMA_MINALIGN));
+}
+#elif defined(CONFIG_MMC_SDHCI_SDMA)
+static void sdhci_prepare_adma_table(struct sdhci_host *host,
+ struct mmc_data *data)
+{}
+#endif
+#if (defined(CONFIG_MMC_SDHCI_SDMA) || CONFIG_IS_ENABLED(MMC_SDHCI_ADMA))
+static void sdhci_prepare_dma(struct sdhci_host *host, struct mmc_data *data,
+ int *is_aligned, int trans_bytes)
{
- unsigned int stat, rdy, mask, timeout, block = 0;
- bool transfer_done = false;
-#ifdef CONFIG_MMC_SDHCI_SDMA
unsigned char ctrl;
+
+ if (data->flags == MMC_DATA_READ)
+ host->start_addr = (dma_addr_t)data->dest;
+ else
+ host->start_addr = (dma_addr_t)data->src;
+
ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
ctrl &= ~SDHCI_CTRL_DMA_MASK;
+ if (host->flags & USE_ADMA64)
+ ctrl |= SDHCI_CTRL_ADMA64;
+ else if (host->flags & USE_ADMA)
+ ctrl |= SDHCI_CTRL_ADMA32;
sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
+
+ if (host->flags & USE_SDMA) {
+ if ((host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) &&
+ (host->start_addr & 0x7) != 0x0) {
+ *is_aligned = 0;
+ host->start_addr = (unsigned long)aligned_buffer;
+ if (data->flags != MMC_DATA_READ)
+ memcpy(aligned_buffer, data->src, trans_bytes);
+ }
+
+#if defined(CONFIG_FIXED_SDHCI_ALIGNED_BUFFER)
+ /*
+ * Always use this bounce-buffer when
+ * CONFIG_FIXED_SDHCI_ALIGNED_BUFFER is defined
+ */
+ *is_aligned = 0;
+ host->start_addr = (unsigned long)aligned_buffer;
+ if (data->flags != MMC_DATA_READ)
+ memcpy(aligned_buffer, data->src, trans_bytes);
+#endif
+ sdhci_writel(host, host->start_addr, SDHCI_DMA_ADDRESS);
+
+ } else if (host->flags & (USE_ADMA | USE_ADMA64)) {
+ sdhci_prepare_adma_table(host, data);
+
+ sdhci_writel(host, (u32)host->adma_addr, SDHCI_ADMA_ADDRESS);
+ if (host->flags & USE_ADMA64)
+ sdhci_writel(host, (u64)host->adma_addr >> 32,
+ SDHCI_ADMA_ADDRESS_HI);
+ }
+
+ flush_cache(host->start_addr, ROUND(trans_bytes, ARCH_DMA_MINALIGN));
+}
+#else
+static void sdhci_prepare_dma(struct sdhci_host *host, struct mmc_data *data,
+ int *is_aligned, int trans_bytes)
+{}
#endif
+static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data)
+{
+ dma_addr_t start_addr = host->start_addr;
+ unsigned int stat, rdy, mask, timeout, block = 0;
+ bool transfer_done = false;
timeout = 1000000;
rdy = SDHCI_INT_SPACE_AVAIL | SDHCI_INT_DATA_AVAIL;
@@ -104,14 +210,17 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data,
continue;
}
}
-#ifdef CONFIG_MMC_SDHCI_SDMA
- if (!transfer_done && (stat & SDHCI_INT_DMA_END)) {
+ if ((host->flags & USE_DMA) && !transfer_done &&
+ (stat & SDHCI_INT_DMA_END)) {
sdhci_writel(host, SDHCI_INT_DMA_END, SDHCI_INT_STATUS);
- start_addr &= ~(SDHCI_DEFAULT_BOUNDARY_SIZE - 1);
- start_addr += SDHCI_DEFAULT_BOUNDARY_SIZE;
- sdhci_writel(host, start_addr, SDHCI_DMA_ADDRESS);
+ if (host->flags & USE_SDMA) {
+ start_addr &=
+ ~(SDHCI_DEFAULT_BOUNDARY_SIZE - 1);
+ start_addr += SDHCI_DEFAULT_BOUNDARY_SIZE;
+ sdhci_writel(host, start_addr,
+ SDHCI_DMA_ADDRESS);
+ }
}
-#endif
if (timeout-- > 0)
udelay(10);
else {
@@ -149,10 +258,11 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
int ret = 0;
int trans_bytes = 0, is_aligned = 1;
u32 mask, flags, mode;
- unsigned int time = 0, start_addr = 0;
+ unsigned int time = 0;
int mmc_dev = mmc_get_blk_desc(mmc)->devnum;
ulong start = get_timer(0);
+ host->start_addr = 0;
/* Timeout unit - ms */
static unsigned int cmd_timeout = SDHCI_CMD_DEFAULT_TIMEOUT;
@@ -218,33 +328,11 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
if (data->flags == MMC_DATA_READ)
mode |= SDHCI_TRNS_READ;
-#ifdef CONFIG_MMC_SDHCI_SDMA
- if (data->flags == MMC_DATA_READ)
- start_addr = (unsigned long)data->dest;
- else
- start_addr = (unsigned long)data->src;
- if ((host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) &&
- (start_addr & 0x7) != 0x0) {
- is_aligned = 0;
- start_addr = (unsigned long)aligned_buffer;
- if (data->flags != MMC_DATA_READ)
- memcpy(aligned_buffer, data->src, trans_bytes);
+ if (host->flags & USE_DMA) {
+ mode |= SDHCI_TRNS_DMA;
+ sdhci_prepare_dma(host, data, &is_aligned, trans_bytes);
}
-#if defined(CONFIG_FIXED_SDHCI_ALIGNED_BUFFER)
- /*
- * Always use this bounce-buffer when
- * CONFIG_FIXED_SDHCI_ALIGNED_BUFFER is defined
- */
- is_aligned = 0;
- start_addr = (unsigned long)aligned_buffer;
- if (data->flags != MMC_DATA_READ)
- memcpy(aligned_buffer, data->src, trans_bytes);
-#endif
-
- sdhci_writel(host, start_addr, SDHCI_DMA_ADDRESS);
- mode |= SDHCI_TRNS_DMA;
-#endif
sdhci_writew(host, SDHCI_MAKE_BLKSZ(SDHCI_DEFAULT_BOUNDARY_ARG,
data->blocksize),
SDHCI_BLOCK_SIZE);
@@ -255,12 +343,6 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
}
sdhci_writel(host, cmd->cmdarg, SDHCI_ARGUMENT);
-#ifdef CONFIG_MMC_SDHCI_SDMA
- if (data) {
- trans_bytes = ALIGN(trans_bytes, CONFIG_SYS_CACHELINE_SIZE);
- flush_cache(start_addr, trans_bytes);
- }
-#endif
sdhci_writew(host, SDHCI_MAKE_CMD(cmd->cmdidx, flags), SDHCI_COMMAND);
start = get_timer(0);
do {
@@ -286,7 +368,7 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
ret = -1;
if (!ret && data)
- ret = sdhci_transfer_data(host, data, start_addr);
+ ret = sdhci_transfer_data(host, data);
if (host->quirks & SDHCI_QUIRK_WAIT_SEND_CMD)
udelay(1000);
@@ -570,6 +652,24 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
__func__);
return -EINVAL;
}
+
+ host->flags |= USE_SDMA;
+#endif
+#if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA)
+ if (!(caps & SDHCI_CAN_DO_ADMA2)) {
+ printf("%s: Your controller doesn't support SDMA!!\n",
+ __func__);
+ return -EINVAL;
+ }
+ host->adma_desc_table = (struct sdhci_adma_desc *)
+ memalign(ARCH_DMA_MINALIGN, ADMA_TABLE_SZ);
+
+ host->adma_addr = (dma_addr_t)host->adma_desc_table;
+#ifdef CONFIG_DMA_ADDR_T_64BIT
+ host->flags |= USE_ADMA64;
+#else
+ host->flags |= USE_ADMA;
+#endif
#endif
if (host->quirks & SDHCI_QUIRK_REG32_RW)
host->version =
diff --git a/include/sdhci.h b/include/sdhci.h
index bef37df982..eee493ab5f 100644
--- a/include/sdhci.h
+++ b/include/sdhci.h
@@ -186,6 +186,7 @@
/* 55-57 reserved */
#define SDHCI_ADMA_ADDRESS 0x58
+#define SDHCI_ADMA_ADDRESS_HI 0x5c
/* 60-FB reserved */
@@ -252,6 +253,38 @@ struct sdhci_ops {
void (*set_delay)(struct sdhci_host *host);
};
+#if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA)
+#define ADMA_MAX_LEN 65532
+#ifdef CONFIG_DMA_ADDR_T_64BIT
+#define ADMA_DESC_LEN 16
+#else
+#define ADMA_DESC_LEN 8
+#endif
+#define ADMA_TABLE_NO_ENTRIES (CONFIG_SYS_MMC_MAX_BLK_COUNT * \
+ MMC_MAX_BLOCK_LEN) / ADMA_MAX_LEN
+
+#define ADMA_TABLE_SZ (ADMA_TABLE_NO_ENTRIES * ADMA_DESC_LEN)
+
+/* Decriptor table defines */
+#define ADMA_DESC_ATTR_VALID BIT(0)
+#define ADMA_DESC_ATTR_END BIT(1)
+#define ADMA_DESC_ATTR_INT BIT(2)
+#define ADMA_DESC_ATTR_ACT1 BIT(4)
+#define ADMA_DESC_ATTR_ACT2 BIT(5)
+
+#define ADMA_DESC_TRANSFER_DATA ADMA_DESC_ATTR_ACT2
+#define ADMA_DESC_LINK_DESC (ADMA_DESC_ATTR_ACT1 | ADMA_DESC_ATTR_ACT2)
+
+struct sdhci_adma_desc {
+ u8 attr;
+ u8 reserved;
+ u16 len;
+ u32 addr_lo;
+#ifdef CONFIG_DMA_ADDR_T_64BIT
+ u32 addr_hi;
+#endif
+} __packed;
+#endif
struct sdhci_host {
const char *name;
void *ioaddr;
@@ -272,6 +305,17 @@ struct sdhci_host {
uint voltages;
struct mmc_config cfg;
+ dma_addr_t start_addr;
+ int flags;
+#define USE_SDMA (0x1 << 0)
+#define USE_ADMA (0x1 << 1)
+#define USE_ADMA64 (0x1 << 2)
+#define USE_DMA (USE_SDMA | USE_ADMA | USE_ADMA64)
+ dma_addr_t adma_addr;
+#if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA)
+ struct sdhci_adma_desc *adma_desc_table;
+ uint desc_slot;
+#endif
};
#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
generated by cgit (git 2.34.1) at 2024-12-25 17:34:15 +0000