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Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/dw_mmc.c2
-rw-r--r--drivers/mmc/exynos_dw_mmc.c71
-rw-r--r--drivers/mmc/mmc.c8
-rw-r--r--drivers/mmc/sdhci.c3
4 files changed, 70 insertions, 14 deletions
diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
index b18c75d..76fa0b0 100644
--- a/drivers/mmc/dw_mmc.c
+++ b/drivers/mmc/dw_mmc.c
@@ -321,7 +321,7 @@ static void dwmci_set_ios(struct mmc *mmc)
if (mmc->ddr_mode)
regs |= DWMCI_DDR_MODE;
else
- regs &= DWMCI_DDR_MODE;
+ regs &= ~DWMCI_DDR_MODE;
dwmci_writel(host, DWMCI_UHS_REG, regs);
diff --git a/drivers/mmc/exynos_dw_mmc.c b/drivers/mmc/exynos_dw_mmc.c
index dfa209b..e083745 100644
--- a/drivers/mmc/exynos_dw_mmc.c
+++ b/drivers/mmc/exynos_dw_mmc.c
@@ -13,14 +13,20 @@
#include <asm/arch/dwmmc.h>
#include <asm/arch/clk.h>
#include <asm/arch/pinmux.h>
+#include <asm/arch/power.h>
#include <asm/gpio.h>
#include <asm-generic/errno.h>
#define DWMMC_MAX_CH_NUM 4
#define DWMMC_MAX_FREQ 52000000
#define DWMMC_MIN_FREQ 400000
-#define DWMMC_MMC0_CLKSEL_VAL 0x03030001
-#define DWMMC_MMC2_CLKSEL_VAL 0x03020001
+#define DWMMC_MMC0_SDR_TIMING_VAL 0x03030001
+#define DWMMC_MMC2_SDR_TIMING_VAL 0x03020001
+
+/* Exynos implmentation specific drver private data */
+struct dwmci_exynos_priv_data {
+ u32 sdr_timing;
+};
/*
* Function used as callback function to initialise the
@@ -28,7 +34,9 @@
*/
static void exynos_dwmci_clksel(struct dwmci_host *host)
{
- dwmci_writel(host, DWMCI_CLKSEL, host->clksel_val);
+ struct dwmci_exynos_priv_data *priv = host->priv;
+
+ dwmci_writel(host, DWMCI_CLKSEL, priv->sdr_timing);
}
unsigned int exynos_dwmci_get_clk(struct dwmci_host *host)
@@ -55,6 +63,8 @@ unsigned int exynos_dwmci_get_clk(struct dwmci_host *host)
static void exynos_dwmci_board_init(struct dwmci_host *host)
{
+ struct dwmci_exynos_priv_data *priv = host->priv;
+
if (host->quirks & DWMCI_QUIRK_DISABLE_SMU) {
dwmci_writel(host, EMMCP_MPSBEGIN0, 0);
dwmci_writel(host, EMMCP_SEND0, 0);
@@ -64,12 +74,17 @@ static void exynos_dwmci_board_init(struct dwmci_host *host)
MPSCTRL_NON_SECURE_READ_BIT |
MPSCTRL_NON_SECURE_WRITE_BIT | MPSCTRL_VALID);
}
+
+ /* Set to timing value at initial time */
+ if (priv->sdr_timing)
+ exynos_dwmci_clksel(host);
}
static int exynos_dwmci_core_init(struct dwmci_host *host, int index)
{
unsigned int div;
unsigned long freq, sclk;
+ struct dwmci_exynos_priv_data *priv = host->priv;
if (host->bus_hz)
freq = host->bus_hz;
@@ -88,11 +103,11 @@ static int exynos_dwmci_core_init(struct dwmci_host *host, int index)
#endif
host->board_init = exynos_dwmci_board_init;
- if (!host->clksel_val) {
+ if (!priv->sdr_timing) {
if (index == 0)
- host->clksel_val = DWMMC_MMC0_CLKSEL_VAL;
+ priv->sdr_timing = DWMMC_MMC0_SDR_TIMING_VAL;
else if (index == 2)
- host->clksel_val = DWMMC_MMC2_CLKSEL_VAL;
+ priv->sdr_timing = DWMMC_MMC2_SDR_TIMING_VAL;
}
host->caps = MMC_MODE_DDR_52MHz;
@@ -118,6 +133,7 @@ static int exynos_dwmci_core_init(struct dwmci_host *host, int index)
int exynos_dwmci_add_port(int index, u32 regbase, int bus_width, u32 clksel)
{
struct dwmci_host *host = NULL;
+ struct dwmci_exynos_priv_data *priv;
host = malloc(sizeof(struct dwmci_host));
if (!host) {
@@ -125,11 +141,19 @@ int exynos_dwmci_add_port(int index, u32 regbase, int bus_width, u32 clksel)
return -ENOMEM;
}
+ priv = malloc(sizeof(struct dwmci_exynos_priv_data));
+ if (!priv) {
+ error("dwmci_exynos_priv_data malloc fail!\n");
+ return -ENOMEM;
+ }
+
host->ioaddr = (void *)regbase;
host->buswidth = bus_width;
if (clksel)
- host->clksel_val = clksel;
+ priv->sdr_timing = clksel;
+
+ host->priv = priv;
return exynos_dwmci_core_init(host, index);
}
@@ -157,7 +181,14 @@ static int exynos_dwmci_get_config(const void *blob, int node,
struct dwmci_host *host)
{
int err = 0;
- u32 base, clksel_val, timing[3];
+ u32 base, timing[3];
+ struct dwmci_exynos_priv_data *priv;
+
+ priv = malloc(sizeof(struct dwmci_exynos_priv_data));
+ if (!priv) {
+ error("dwmci_exynos_priv_data malloc fail!\n");
+ return -ENOMEM;
+ }
/* Extract device id for each mmc channel */
host->dev_id = pinmux_decode_periph_id(blob, node);
@@ -166,7 +197,6 @@ static int exynos_dwmci_get_config(const void *blob, int node,
if (host->dev_index == host->dev_id)
host->dev_index = host->dev_id - PERIPH_ID_SDMMC0;
-
/* Get the bus width from the device node */
host->buswidth = fdtdec_get_int(blob, node, "samsung,bus-width", 0);
if (host->buswidth <= 0) {
@@ -190,16 +220,24 @@ static int exynos_dwmci_get_config(const void *blob, int node,
return -EINVAL;
}
- clksel_val = (DWMCI_SET_SAMPLE_CLK(timing[0]) |
+ priv->sdr_timing = (DWMCI_SET_SAMPLE_CLK(timing[0]) |
DWMCI_SET_DRV_CLK(timing[1]) |
DWMCI_SET_DIV_RATIO(timing[2]));
- if (clksel_val)
- host->clksel_val = clksel_val;
+
+ /* sdr_timing didn't assigned anything, use the default value */
+ if (!priv->sdr_timing) {
+ if (host->dev_index == 0)
+ priv->sdr_timing = DWMMC_MMC0_SDR_TIMING_VAL;
+ else if (host->dev_index == 2)
+ priv->sdr_timing = DWMMC_MMC2_SDR_TIMING_VAL;
+ }
host->fifoth_val = fdtdec_get_int(blob, node, "fifoth_val", 0);
host->bus_hz = fdtdec_get_int(blob, node, "bus_hz", 0);
host->div = fdtdec_get_int(blob, node, "div", 0);
+ host->priv = priv;
+
return 0;
}
@@ -229,12 +267,21 @@ int exynos_dwmmc_init(const void *blob)
{
int compat_id;
int node_list[DWMMC_MAX_CH_NUM];
+ int boot_dev_node;
int err = 0, count;
compat_id = COMPAT_SAMSUNG_EXYNOS_DWMMC;
count = fdtdec_find_aliases_for_id(blob, "mmc",
compat_id, node_list, DWMMC_MAX_CH_NUM);
+
+ /* For DWMMC always set boot device as mmc 0 */
+ if (count >= 3 && get_boot_mode() == BOOT_MODE_SD) {
+ boot_dev_node = node_list[2];
+ node_list[2] = node_list[0];
+ node_list[0] = boot_dev_node;
+ }
+
err = exynos_dwmci_process_node(blob, node_list, count);
return err;
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index b8039cd..a13769e 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1693,11 +1693,19 @@ void print_mmc_devices(char separator)
{
struct mmc *m;
struct list_head *entry;
+ char *mmc_type;
list_for_each(entry, &mmc_devices) {
m = list_entry(entry, struct mmc, link);
+ if (m->has_init)
+ mmc_type = IS_SD(m) ? "SD" : "eMMC";
+ else
+ mmc_type = NULL;
+
printf("%s: %d", m->cfg->name, m->block_dev.dev);
+ if (mmc_type)
+ printf(" (%s)", mmc_type);
if (entry->next != &mmc_devices) {
printf("%c", separator);
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index de88e19..82d7984 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -374,7 +374,8 @@ static void sdhci_set_ios(struct mmc *mmc)
(host->quirks & SDHCI_QUIRK_USE_WIDE8))
ctrl |= SDHCI_CTRL_8BITBUS;
} else {
- if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300)
+ if ((SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) ||
+ (host->quirks & SDHCI_QUIRK_USE_WIDE8))
ctrl &= ~SDHCI_CTRL_8BITBUS;
if (mmc->bus_width == 4)
ctrl |= SDHCI_CTRL_4BITBUS;
generated by cgit v1.1 at 2024-11-19 12:11:41 +0000