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-rw-r--r--drivers/core/uclass.c5
-rw-r--r--drivers/mmc/Kconfig10
-rw-r--r--drivers/mmc/Makefile1
-rw-r--r--drivers/mmc/fsl_esdhc.c625
-rw-r--r--drivers/mmc/fsl_esdhc_imx.c1650
-rw-r--r--drivers/usb/dwc3/dwc3-generic.c4
-rw-r--r--drivers/usb/host/ehci-mx6.c37
-rw-r--r--drivers/video/pwm_backlight.c3
8 files changed, 1722 insertions, 613 deletions
diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c
index fc3157de39..dc9eb62893 100644
--- a/drivers/core/uclass.c
+++ b/drivers/core/uclass.c
@@ -757,3 +757,8 @@ int uclass_pre_remove_device(struct udevice *dev)
return 0;
}
#endif
+
+UCLASS_DRIVER(nop) = {
+ .id = UCLASS_NOP,
+ .name = "nop",
+};
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig
index c23299ea96..93588725f2 100644
--- a/drivers/mmc/Kconfig
+++ b/drivers/mmc/Kconfig
@@ -668,8 +668,14 @@ config TEGRA124_MMC_DISABLE_EXT_LOOPBACK
config FSL_ESDHC
bool "Freescale/NXP eSDHC controller support"
help
- This selects support for the eSDHC (enhanced secure digital host
- controller) found on numerous Freescale/NXP SoCs.
+ This selects support for the eSDHC (Enhanced Secure Digital Host
+ Controller) found on numerous Freescale/NXP SoCs.
+
+config FSL_ESDHC_IMX
+ bool "Freescale/NXP i.MX eSDHC controller support"
+ help
+ This selects support for the i.MX eSDHC (Enhanced Secure Digital Host
+ Controller) found on numerous Freescale/NXP SoCs.
endmenu
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index 0076fc393b..3c8c53a9e1 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -26,6 +26,7 @@ obj-$(CONFIG_MMC_DW_ROCKCHIP) += rockchip_dw_mmc.o
obj-$(CONFIG_MMC_DW_SOCFPGA) += socfpga_dw_mmc.o
obj-$(CONFIG_MMC_DW_SNPS) += snps_dw_mmc.o
obj-$(CONFIG_FSL_ESDHC) += fsl_esdhc.o
+obj-$(CONFIG_FSL_ESDHC_IMX) += fsl_esdhc_imx.o
obj-$(CONFIG_FTSDC010) += ftsdc010_mci.o
obj-$(CONFIG_GENERIC_ATMEL_MCI) += gen_atmel_mci.o
obj-$(CONFIG_MMC_MESON_GX) += meson_gx_mmc.o
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index 6a191a1765..07318472a7 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -17,14 +17,11 @@
#include <hwconfig.h>
#include <mmc.h>
#include <part.h>
-#include <power/regulator.h>
#include <malloc.h>
#include <fsl_esdhc.h>
#include <fdt_support.h>
#include <asm/io.h>
#include <dm.h>
-#include <asm-generic/gpio.h>
-#include <dm/pinctrl.h>
#if !CONFIG_IS_ENABLED(BLK)
#include "mmc_private.h"
@@ -38,7 +35,6 @@ DECLARE_GLOBAL_DATA_PTR;
IRQSTATEN_CIE | IRQSTATEN_DTOE | IRQSTATEN_DCE | \
IRQSTATEN_DEBE | IRQSTATEN_BRR | IRQSTATEN_BWR | \
IRQSTATEN_DINT)
-#define MAX_TUNING_LOOP 40
#define ESDHC_DRIVER_STAGE_VALUE 0xffffffff
struct fsl_esdhc {
@@ -60,37 +56,20 @@ struct fsl_esdhc {
uint autoc12err; /* Auto CMD error status register */
uint hostcapblt; /* Host controller capabilities register */
uint wml; /* Watermark level register */
- uint mixctrl; /* For USDHC */
- char reserved1[4]; /* reserved */
+ char reserved1[8]; /* reserved */
uint fevt; /* Force event register */
uint admaes; /* ADMA error status register */
uint adsaddr; /* ADMA system address register */
- char reserved2[4];
- uint dllctrl;
- uint dllstat;
- uint clktunectrlstatus;
- char reserved3[4];
- uint strobe_dllctrl;
- uint strobe_dllstat;
- char reserved4[72];
- uint vendorspec;
- uint mmcboot;
- uint vendorspec2;
- uint tuning_ctrl; /* on i.MX6/7/8 */
- char reserved5[44];
+ char reserved2[160];
uint hostver; /* Host controller version register */
- char reserved6[4]; /* reserved */
+ char reserved3[4]; /* reserved */
uint dmaerraddr; /* DMA error address register */
- char reserved7[4]; /* reserved */
+ char reserved4[4]; /* reserved */
uint dmaerrattr; /* DMA error attribute register */
- char reserved8[4]; /* reserved */
+ char reserved5[4]; /* reserved */
uint hostcapblt2; /* Host controller capabilities register 2 */
- char reserved9[8]; /* reserved */
- uint tcr; /* Tuning control register */
- char reserved10[28]; /* reserved */
- uint sddirctl; /* SD direction control register */
- char reserved11[712];/* reserved */
- uint scr; /* eSDHC control register */
+ char reserved6[756]; /* reserved */
+ uint esdhcctl; /* eSDHC control register */
};
struct fsl_esdhc_plat {
@@ -98,11 +77,6 @@ struct fsl_esdhc_plat {
struct mmc mmc;
};
-struct esdhc_soc_data {
- u32 flags;
- u32 caps;
-};
-
/**
* struct fsl_esdhc_priv
*
@@ -115,13 +89,6 @@ struct esdhc_soc_data {
* @dev: pointer for the device
* @non_removable: 0: removable; 1: non-removable
* @wp_enable: 1: enable checking wp; 0: no check
- * @vs18_enable: 1: use 1.8V voltage; 0: use 3.3V
- * @flags: ESDHC_FLAG_xx in include/fsl_esdhc.h
- * @caps: controller capabilities
- * @tuning_step: tuning step setting in tuning_ctrl register
- * @start_tuning_tap: the start point for tuning in tuning_ctrl register
- * @strobe_dll_delay_target: settings in strobe_dllctrl
- * @signal_voltage: indicating the current voltage
* @cd_gpio: gpio for card detection
* @wp_gpio: gpio for write protection
*/
@@ -130,7 +97,6 @@ struct fsl_esdhc_priv {
unsigned int sdhc_clk;
struct clk per_clk;
unsigned int clock;
- unsigned int mode;
unsigned int bus_width;
#if !CONFIG_IS_ENABLED(BLK)
struct mmc *mmc;
@@ -138,21 +104,6 @@ struct fsl_esdhc_priv {
struct udevice *dev;
int non_removable;
int wp_enable;
- int vs18_enable;
- u32 flags;
- u32 caps;
- u32 tuning_step;
- u32 tuning_start_tap;
- u32 strobe_dll_delay_target;
- u32 signal_voltage;
-#if IS_ENABLED(CONFIG_DM_REGULATOR)
- struct udevice *vqmmc_dev;
- struct udevice *vmmc_dev;
-#endif
-#ifdef CONFIG_DM_GPIO
- struct gpio_desc cd_gpio;
- struct gpio_desc wp_gpio;
-#endif
};
/* Return the XFERTYP flags for a given command and data packet */
@@ -264,8 +215,7 @@ static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc,
{
int timeout;
struct fsl_esdhc *regs = priv->esdhc_regs;
-#if defined(CONFIG_FSL_LAYERSCAPE) || defined(CONFIG_S32V234) || \
- defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
+#if defined(CONFIG_FSL_LAYERSCAPE)
dma_addr_t addr;
#endif
uint wml_value;
@@ -278,8 +228,7 @@ static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc,
esdhc_clrsetbits32(&regs->wml, WML_RD_WML_MASK, wml_value);
#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
-#if defined(CONFIG_FSL_LAYERSCAPE) || defined(CONFIG_S32V234) || \
- defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
+#if defined(CONFIG_FSL_LAYERSCAPE)
addr = virt_to_phys((void *)(data->dest));
if (upper_32_bits(addr))
printf("Error found for upper 32 bits\n");
@@ -303,20 +252,12 @@ 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,
wml_value << 16);
#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
-#if defined(CONFIG_FSL_LAYERSCAPE) || defined(CONFIG_S32V234) || \
- defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
+#if defined(CONFIG_FSL_LAYERSCAPE)
addr = virt_to_phys((void *)(data->src));
if (upper_32_bits(addr))
printf("Error found for upper 32 bits\n");
@@ -381,8 +322,7 @@ static void check_and_invalidate_dcache_range
unsigned end = 0;
unsigned size = roundup(ARCH_DMA_MINALIGN,
data->blocks*data->blocksize);
-#if defined(CONFIG_FSL_LAYERSCAPE) || defined(CONFIG_S32V234) || \
- defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
+#if defined(CONFIG_FSL_LAYERSCAPE)
dma_addr_t addr;
addr = virt_to_phys((void *)(data->dest));
@@ -397,25 +337,6 @@ static void check_and_invalidate_dcache_range
invalidate_dcache_range(start, end);
}
-#ifdef CONFIG_MCF5441x
-/*
- * Swaps 32-bit words to little-endian byte order.
- */
-static inline void sd_swap_dma_buff(struct mmc_data *data)
-{
- int i, size = data->blocksize >> 2;
- u32 *buffer = (u32 *)data->dest;
- u32 sw;
-
- while (data->blocks--) {
- for (i = 0; i < size; i++) {
- sw = __sw32(*buffer);
- *buffer++ = sw;
- }
- }
-}
-#endif
-
/*
* Sends a command out on the bus. Takes the mmc pointer,
* a command pointer, and an optional data pointer.
@@ -472,14 +393,7 @@ static int esdhc_send_cmd_common(struct fsl_esdhc_priv *priv, struct mmc *mmc,
/* Send the command */
esdhc_write32(&regs->cmdarg, cmd->cmdarg);
-#if defined(CONFIG_FSL_USDHC)
- esdhc_write32(&regs->mixctrl,
- (esdhc_read32(&regs->mixctrl) & 0xFFFFFF80) | (xfertyp & 0x7F)
- | (mmc->ddr_mode ? XFERTYP_DDREN : 0));
- esdhc_write32(&regs->xfertyp, xfertyp & 0xFFFF0000);
-#else
esdhc_write32(&regs->xfertyp, xfertyp);
-#endif
if ((cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK) ||
(cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200))
@@ -506,15 +420,6 @@ static int esdhc_send_cmd_common(struct fsl_esdhc_priv *priv, struct mmc *mmc,
goto out;
}
- /* Switch voltage to 1.8V if CMD11 succeeded */
- if (cmd->cmdidx == SD_CMD_SWITCH_UHS18V) {
- esdhc_setbits32(&regs->vendorspec, ESDHC_VENDORSPEC_VSELECT);
-
- printf("Run CMD11 1.8V switch\n");
- /* Sleep for 5 ms - max time for card to switch to 1.8V */
- udelay(5000);
- }
-
/* Workaround for ESDHC errata ENGcm03648 */
if (!data && (cmd->resp_type & MMC_RSP_BUSY)) {
int timeout = 6000;
@@ -580,9 +485,6 @@ static int esdhc_send_cmd_common(struct fsl_esdhc_priv *priv, struct mmc *mmc,
*/
if (data->flags & MMC_DATA_READ) {
check_and_invalidate_dcache_range(cmd, data);
-#ifdef CONFIG_MCF5441x
- sd_swap_dma_buff(data);
-#endif
}
#endif
}
@@ -602,10 +504,6 @@ out:
while ((esdhc_read32(&regs->sysctl) & SYSCTL_RSTD))
;
}
-
- /* If this was CMD11, then notify that power cycle is needed */
- if (cmd->cmdidx == SD_CMD_SWITCH_UHS18V)
- printf("CMD11 to switch to 1.8V mode failed, card requires power cycle.\n");
}
esdhc_write32(&regs->irqstat, -1);
@@ -617,16 +515,7 @@ static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock)
{
struct fsl_esdhc *regs = priv->esdhc_regs;
int div = 1;
-#ifdef ARCH_MXC
-#ifdef CONFIG_MX53
- /* For i.MX53 eSDHCv3, SYSCTL.SDCLKFS may not be set to 0. */
- int pre_div = (regs == (struct fsl_esdhc *)MMC_SDHC3_BASE_ADDR) ? 2 : 1;
-#else
- int pre_div = 1;
-#endif
-#else
int pre_div = 2;
-#endif
int ddr_pre_div = mmc->ddr_mode ? 2 : 1;
int sdhc_clk = priv->sdhc_clk;
uint clk;
@@ -645,21 +534,13 @@ static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock)
clk = (pre_div << 8) | (div << 4);
-#ifdef CONFIG_FSL_USDHC
- esdhc_clrbits32(&regs->vendorspec, VENDORSPEC_CKEN);
-#else
esdhc_clrbits32(&regs->sysctl, SYSCTL_CKEN);
-#endif
esdhc_clrsetbits32(&regs->sysctl, SYSCTL_CLOCK_MASK, clk);
udelay(10000);
-#ifdef CONFIG_FSL_USDHC
- esdhc_setbits32(&regs->vendorspec, VENDORSPEC_PEREN | VENDORSPEC_CKEN);
-#else
esdhc_setbits32(&regs->sysctl, SYSCTL_PEREN | SYSCTL_CKEN);
-#endif
priv->clock = clock;
}
@@ -693,317 +574,20 @@ static void esdhc_clock_control(struct fsl_esdhc_priv *priv, bool enable)
}
#endif
-#ifdef MMC_SUPPORTS_TUNING
-static int esdhc_change_pinstate(struct udevice *dev)
-{
- struct fsl_esdhc_priv *priv = dev_get_priv(dev);
- int ret;
-
- switch (priv->mode) {
- case UHS_SDR50:
- case UHS_DDR50:
- ret = pinctrl_select_state(dev, "state_100mhz");
- break;
- case UHS_SDR104:
- case MMC_HS_200:
- case MMC_HS_400:
- ret = pinctrl_select_state(dev, "state_200mhz");
- break;
- default:
- ret = pinctrl_select_state(dev, "default");
- break;
- }
-
- if (ret)
- printf("%s %d error\n", __func__, priv->mode);
-
- return ret;
-}
-
-static void esdhc_reset_tuning(struct mmc *mmc)
-{
- struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
- struct fsl_esdhc *regs = priv->esdhc_regs;
-
- if (priv->flags & ESDHC_FLAG_USDHC) {
- if (priv->flags & ESDHC_FLAG_STD_TUNING) {
- esdhc_clrbits32(&regs->autoc12err,
- MIX_CTRL_SMPCLK_SEL |
- MIX_CTRL_EXE_TUNE);
- }
- }
-}
-
-static void esdhc_set_strobe_dll(struct mmc *mmc)
-{
- struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
- struct fsl_esdhc *regs = priv->esdhc_regs;
- u32 val;
-
- if (priv->clock > ESDHC_STROBE_DLL_CLK_FREQ) {
- writel(ESDHC_STROBE_DLL_CTRL_RESET, &regs->strobe_dllctrl);
-
- /*
- * enable strobe dll ctrl and adjust the delay target
- * for the uSDHC loopback read clock
- */
- val = ESDHC_STROBE_DLL_CTRL_ENABLE |
- (priv->strobe_dll_delay_target <<
- ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_SHIFT);
- writel(val, &regs->strobe_dllctrl);
- /* wait 1us to make sure strobe dll status register stable */
- mdelay(1);
- val = readl(&regs->strobe_dllstat);
- if (!(val & ESDHC_STROBE_DLL_STS_REF_LOCK))
- pr_warn("HS400 strobe DLL status REF not lock!\n");
- if (!(val & ESDHC_STROBE_DLL_STS_SLV_LOCK))
- pr_warn("HS400 strobe DLL status SLV not lock!\n");
- }
-}
-
-static int esdhc_set_timing(struct mmc *mmc)
-{
- struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
- struct fsl_esdhc *regs = priv->esdhc_regs;
- u32 mixctrl;
-
- mixctrl = readl(&regs->mixctrl);
- mixctrl &= ~(MIX_CTRL_DDREN | MIX_CTRL_HS400_EN);
-
- switch (mmc->selected_mode) {
- case MMC_LEGACY:
- case SD_LEGACY:
- esdhc_reset_tuning(mmc);
- writel(mixctrl, &regs->mixctrl);
- break;
- case MMC_HS_400:
- mixctrl |= MIX_CTRL_DDREN | MIX_CTRL_HS400_EN;
- writel(mixctrl, &regs->mixctrl);
- esdhc_set_strobe_dll(mmc);
- break;
- case MMC_HS:
- case MMC_HS_52:
- case MMC_HS_200:
- case SD_HS:
- case UHS_SDR12:
- case UHS_SDR25:
- case UHS_SDR50:
- case UHS_SDR104:
- writel(mixctrl, &regs->mixctrl);
- break;
- case UHS_DDR50:
- case MMC_DDR_52:
- mixctrl |= MIX_CTRL_DDREN;
- writel(mixctrl, &regs->mixctrl);
- break;
- default:
- printf("Not supported %d\n", mmc->selected_mode);
- return -EINVAL;
- }
-
- priv->mode = mmc->selected_mode;
-
- return esdhc_change_pinstate(mmc->dev);
-}
-
-static int esdhc_set_voltage(struct mmc *mmc)
-{
- struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
- struct fsl_esdhc *regs = priv->esdhc_regs;
- int ret;
-
- priv->signal_voltage = mmc->signal_voltage;
- switch (mmc->signal_voltage) {
- case MMC_SIGNAL_VOLTAGE_330:
- if (priv->vs18_enable)
- return -EIO;
-#if CONFIG_IS_ENABLED(DM_REGULATOR)
- if (!IS_ERR_OR_NULL(priv->vqmmc_dev)) {
- ret = regulator_set_value(priv->vqmmc_dev, 3300000);
- if (ret) {
- printf("Setting to 3.3V error");
- return -EIO;
- }
- /* Wait for 5ms */
- mdelay(5);
- }
-#endif
-
- esdhc_clrbits32(&regs->vendorspec, ESDHC_VENDORSPEC_VSELECT);
- if (!(esdhc_read32(&regs->vendorspec) &
- ESDHC_VENDORSPEC_VSELECT))
- return 0;
-
- return -EAGAIN;
- case MMC_SIGNAL_VOLTAGE_180:
-#if CONFIG_IS_ENABLED(DM_REGULATOR)
- if (!IS_ERR_OR_NULL(priv->vqmmc_dev)) {
- ret = regulator_set_value(priv->vqmmc_dev, 1800000);
- if (ret) {
- printf("Setting to 1.8V error");
- return -EIO;
- }
- }
-#endif
- esdhc_setbits32(&regs->vendorspec, ESDHC_VENDORSPEC_VSELECT);
- if (esdhc_read32(&regs->vendorspec) & ESDHC_VENDORSPEC_VSELECT)
- return 0;
-
- return -EAGAIN;
- case MMC_SIGNAL_VOLTAGE_120:
- return -ENOTSUPP;
- default:
- return 0;
- }
-}
-
-static void esdhc_stop_tuning(struct mmc *mmc)
-{
- struct mmc_cmd cmd;
-
- cmd.cmdidx = MMC_CMD_STOP_TRANSMISSION;
- cmd.cmdarg = 0;
- cmd.resp_type = MMC_RSP_R1b;
-
- dm_mmc_send_cmd(mmc->dev, &cmd, NULL);
-}
-
-static int fsl_esdhc_execute_tuning(struct udevice *dev, uint32_t opcode)
-{
- struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
- struct fsl_esdhc_priv *priv = dev_get_priv(dev);
- struct fsl_esdhc *regs = priv->esdhc_regs;
- struct mmc *mmc = &plat->mmc;
- u32 irqstaten = readl(&regs->irqstaten);
- u32 irqsigen = readl(&regs->irqsigen);
- int i, ret = -ETIMEDOUT;
- u32 val, mixctrl;
-
- /* clock tuning is not needed for upto 52MHz */
- if (mmc->clock <= 52000000)
- return 0;
-
- /* This is readw/writew SDHCI_HOST_CONTROL2 when tuning */
- if (priv->flags & ESDHC_FLAG_STD_TUNING) {
- val = readl(&regs->autoc12err);
- mixctrl = readl(&regs->mixctrl);
- val &= ~MIX_CTRL_SMPCLK_SEL;
- mixctrl &= ~(MIX_CTRL_FBCLK_SEL | MIX_CTRL_AUTO_TUNE_EN);
-
- val |= MIX_CTRL_EXE_TUNE;
- mixctrl |= MIX_CTRL_FBCLK_SEL | MIX_CTRL_AUTO_TUNE_EN;
-
- writel(val, &regs->autoc12err);
- writel(mixctrl, &regs->mixctrl);
- }
-
- /* sdhci_writew(host, SDHCI_TRNS_READ, SDHCI_TRANSFER_MODE); */
- mixctrl = readl(&regs->mixctrl);
- mixctrl = MIX_CTRL_DTDSEL_READ | (mixctrl & ~MIX_CTRL_SDHCI_MASK);
- writel(mixctrl, &regs->mixctrl);
-
- writel(IRQSTATEN_BRR, &regs->irqstaten);
- writel(IRQSTATEN_BRR, &regs->irqsigen);
-
- /*
- * Issue opcode repeatedly till Execute Tuning is set to 0 or the number
- * of loops reaches 40 times.
- */
- for (i = 0; i < MAX_TUNING_LOOP; i++) {
- u32 ctrl;
-
- if (opcode == MMC_CMD_SEND_TUNING_BLOCK_HS200) {
- if (mmc->bus_width == 8)
- writel(0x7080, &regs->blkattr);
- else if (mmc->bus_width == 4)
- writel(0x7040, &regs->blkattr);
- } else {
- writel(0x7040, &regs->blkattr);
- }
-
- /* sdhci_writew(host, SDHCI_TRNS_READ, SDHCI_TRANSFER_MODE) */
- val = readl(&regs->mixctrl);
- val = MIX_CTRL_DTDSEL_READ | (val & ~MIX_CTRL_SDHCI_MASK);
- writel(val, &regs->mixctrl);
-
- /* We are using STD tuning, no need to check return value */
- mmc_send_tuning(mmc, opcode, NULL);
-
- ctrl = readl(&regs->autoc12err);
- if ((!(ctrl & MIX_CTRL_EXE_TUNE)) &&
- (ctrl & MIX_CTRL_SMPCLK_SEL)) {
- /*
- * need to wait some time, make sure sd/mmc fininsh
- * send out tuning data, otherwise, the sd/mmc can't
- * response to any command when the card still out
- * put the tuning data.
- */
- mdelay(1);
- ret = 0;
- break;
- }
-
- /* Add 1ms delay for SD and eMMC */
- mdelay(1);
- }
-
- writel(irqstaten, &regs->irqstaten);
- writel(irqsigen, &regs->irqsigen);
-
- esdhc_stop_tuning(mmc);
-
- return ret;
-}
-#endif
-
static int esdhc_set_ios_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
{
struct fsl_esdhc *regs = priv->esdhc_regs;
- int ret __maybe_unused;
#ifdef CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK
/* Select to use peripheral clock */
esdhc_clock_control(priv, false);
- esdhc_setbits32(&regs->scr, ESDHCCTL_PCS);
+ esdhc_setbits32(&regs->esdhcctl, ESDHCCTL_PCS);
esdhc_clock_control(priv, true);
#endif
/* Set the clock speed */
if (priv->clock != mmc->clock)
set_sysctl(priv, mmc, mmc->clock);
-#ifdef MMC_SUPPORTS_TUNING
- if (mmc->clk_disable) {
-#ifdef CONFIG_FSL_USDHC
- esdhc_clrbits32(&regs->vendorspec, VENDORSPEC_CKEN);
-#else
- esdhc_clrbits32(&regs->sysctl, SYSCTL_CKEN);
-#endif
- } else {
-#ifdef CONFIG_FSL_USDHC
- esdhc_setbits32(&regs->vendorspec, VENDORSPEC_PEREN |
- VENDORSPEC_CKEN);
-#else
- esdhc_setbits32(&regs->sysctl, SYSCTL_PEREN | SYSCTL_CKEN);
-#endif
- }
-
- if (priv->mode != mmc->selected_mode) {
- ret = esdhc_set_timing(mmc);
- if (ret) {
- printf("esdhc_set_timing error %d\n", ret);
- return ret;
- }
- }
-
- if (priv->signal_voltage != mmc->signal_voltage) {
- ret = esdhc_set_voltage(mmc);
- if (ret) {
- printf("esdhc_set_voltage error %d\n", ret);
- return ret;
- }
- }
-#endif
-
/* Set the bus width */
esdhc_clrbits32(&regs->proctl, PROCTL_DTW_4 | PROCTL_DTW_8);
@@ -1030,34 +614,10 @@ static int esdhc_init_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
return -ETIMEDOUT;
}
-#if defined(CONFIG_FSL_USDHC)
- /* RSTA doesn't reset MMC_BOOT register, so manually reset it */
- esdhc_write32(&regs->mmcboot, 0x0);
- /* Reset MIX_CTRL and CLK_TUNE_CTRL_STATUS regs to 0 */
- esdhc_write32(&regs->mixctrl, 0x0);
- esdhc_write32(&regs->clktunectrlstatus, 0x0);
-
- /* Put VEND_SPEC to default value */
- if (priv->vs18_enable)
- esdhc_write32(&regs->vendorspec, (VENDORSPEC_INIT |
- ESDHC_VENDORSPEC_VSELECT));
- else
- esdhc_write32(&regs->vendorspec, VENDORSPEC_INIT);
-
- /* Disable DLL_CTRL delay line */
- esdhc_write32(&regs->dllctrl, 0x0);
-#endif
-
-#ifndef ARCH_MXC
/* Enable cache snooping */
- esdhc_write32(&regs->scr, 0x00000040);
-#endif
+ esdhc_write32(&regs->esdhcctl, 0x00000040);
-#ifndef CONFIG_FSL_USDHC
esdhc_setbits32(&regs->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
-#else
- esdhc_setbits32(&regs->vendorspec, VENDORSPEC_HCKEN | VENDORSPEC_IPGEN);
-#endif
/* Set the initial clock speed */
mmc_set_clock(mmc, 400000, MMC_CLK_ENABLE);
@@ -1065,12 +625,8 @@ static int esdhc_init_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
/* Disable the BRR and BWR bits in IRQSTAT */
esdhc_clrbits32(&regs->irqstaten, IRQSTATEN_BRR | IRQSTATEN_BWR);
-#ifdef CONFIG_MCF5441x
- esdhc_write32(&regs->proctl, PROCTL_INIT | PROCTL_D3CD);
-#else
/* Put the PROCTL reg back to the default */
esdhc_write32(&regs->proctl, PROCTL_INIT);
-#endif
/* Set timout to the maximum value */
esdhc_clrsetbits32(&regs->sysctl, SYSCTL_TIMEOUT_MASK, 14 << 16);
@@ -1091,10 +647,6 @@ static int esdhc_getcd_common(struct fsl_esdhc_priv *priv)
#if CONFIG_IS_ENABLED(DM_MMC)
if (priv->non_removable)
return 1;
-#ifdef CONFIG_DM_GPIO
- if (dm_gpio_is_valid(&priv->cd_gpio))
- return dm_gpio_get_value(&priv->cd_gpio);
-#endif
#endif
while (!(esdhc_read32(&regs->prsstat) & PRSSTAT_CINS) && --timeout)
@@ -1178,25 +730,8 @@ static int fsl_esdhc_init(struct fsl_esdhc_priv *priv,
if (ret)
return ret;
-#ifdef CONFIG_MCF5441x
- /* ColdFire, using SDHC_DATA[3] for card detection */
- esdhc_write32(&regs->proctl, PROCTL_INIT | PROCTL_D3CD);
-#endif
-
-#ifndef CONFIG_FSL_USDHC
- esdhc_setbits32(&regs->sysctl, SYSCTL_PEREN | SYSCTL_HCKEN
- | SYSCTL_IPGEN | SYSCTL_CKEN);
- /* Clearing tuning bits in case ROM has set it already */
- esdhc_write32(&regs->mixctrl, 0);
- esdhc_write32(&regs->autoc12err, 0);
- esdhc_write32(&regs->clktunectrlstatus, 0);
-#else
- esdhc_setbits32(&regs->vendorspec, VENDORSPEC_PEREN |
- VENDORSPEC_HCKEN | VENDORSPEC_IPGEN | VENDORSPEC_CKEN);
-#endif
-
- if (priv->vs18_enable)
- esdhc_setbits32(&regs->vendorspec, ESDHC_VENDORSPEC_VSELECT);
+ esdhc_setbits32(&regs->sysctl, SYSCTL_PEREN | SYSCTL_HCKEN |
+ SYSCTL_IPGEN | SYSCTL_CKEN);
writel(SDHCI_IRQ_EN_BITS, &regs->irqstaten);
cfg = &plat->cfg;
@@ -1207,15 +742,6 @@ static int fsl_esdhc_init(struct fsl_esdhc_priv *priv,
voltage_caps = 0;
caps = esdhc_read32(&regs->hostcapblt);
-#ifdef CONFIG_MCF5441x
- /*
- * MCF5441x RM declares in more points that sdhc clock speed must
- * never exceed 25 Mhz. From this, the HS bit needs to be disabled
- * from host capabilities.
- */
- caps &= ~ESDHC_HOSTCAPBLT_HSS;
-#endif
-
#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC135
caps = caps & ~(ESDHC_HOSTCAPBLT_SRS |
ESDHC_HOSTCAPBLT_VS18 | ESDHC_HOSTCAPBLT_VS30);
@@ -1272,27 +798,11 @@ static int fsl_esdhc_init(struct fsl_esdhc_priv *priv,
cfg->host_caps &= ~MMC_MODE_8BIT;
#endif
- cfg->host_caps |= priv->caps;
-
cfg->f_min = 400000;
cfg->f_max = min(priv->sdhc_clk, (u32)200000000);
cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
- writel(0, &regs->dllctrl);
- if (priv->flags & ESDHC_FLAG_USDHC) {
- if (priv->flags & ESDHC_FLAG_STD_TUNING) {
- u32 val = readl(&regs->tuning_ctrl);
-
- val |= ESDHC_STD_TUNING_EN;
- val &= ~ESDHC_TUNING_START_TAP_MASK;
- val |= priv->tuning_start_tap;
- val &= ~ESDHC_TUNING_STEP_MASK;
- val |= (priv->tuning_step) << ESDHC_TUNING_STEP_SHIFT;
- writel(val, &regs->tuning_ctrl);
- }
- }
-
return 0;
}
@@ -1307,7 +817,6 @@ static int fsl_esdhc_cfg_to_priv(struct fsl_esdhc_cfg *cfg,
priv->bus_width = cfg->max_bus_width;
priv->sdhc_clk = cfg->sdhc_clk;
priv->wp_enable = cfg->wp_enable;
- priv->vs18_enable = cfg->vs18_enable;
return 0;
};
@@ -1444,22 +953,11 @@ void fdt_fixup_esdhc(void *blob, bd_t *bd)
#ifndef CONFIG_PPC
#include <asm/arch/clock.h>
#endif
-__weak void init_clk_usdhc(u32 index)
-{
-}
-
static int fsl_esdhc_probe(struct udevice *dev)
{
struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
struct fsl_esdhc_priv *priv = dev_get_priv(dev);
- const void *fdt = gd->fdt_blob;
- int node = dev_of_offset(dev);
- struct esdhc_soc_data *data =
- (struct esdhc_soc_data *)dev_get_driver_data(dev);
-#if CONFIG_IS_ENABLED(DM_REGULATOR)
- struct udevice *vqmmc_dev;
-#endif
fdt_addr_t addr;
unsigned int val;
struct mmc *mmc;
@@ -1477,11 +975,6 @@ static int fsl_esdhc_probe(struct udevice *dev)
priv->esdhc_regs = (struct fsl_esdhc *)addr;
#endif
priv->dev = dev;
- priv->mode = -1;
- if (data) {
- priv->flags = data->flags;
- priv->caps = data->caps;
- }
val = dev_read_u32_default(dev, "bus-width", -1);
if (val == 8)
@@ -1491,81 +984,13 @@ static int fsl_esdhc_probe(struct udevice *dev)
else
priv->bus_width = 1;
- val = fdtdec_get_int(fdt, node, "fsl,tuning-step", 1);
- priv->tuning_step = val;
- val = fdtdec_get_int(fdt, node, "fsl,tuning-start-tap",
- ESDHC_TUNING_START_TAP_DEFAULT);
- priv->tuning_start_tap = val;
- val = fdtdec_get_int(fdt, node, "fsl,strobe-dll-delay-target",
- ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_DEFAULT);
- priv->strobe_dll_delay_target = val;
-
if (dev_read_bool(dev, "non-removable")) {
priv->non_removable = 1;
} else {
priv->non_removable = 0;
-#ifdef CONFIG_DM_GPIO
- gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio,
- GPIOD_IS_IN);
-#endif
}
- if (dev_read_prop(dev, "fsl,wp-controller", NULL)) {
- priv->wp_enable = 1;
- } else {
- priv->wp_enable = 0;
-#ifdef CONFIG_DM_GPIO
- gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio,
- GPIOD_IS_IN);
-#endif
- }
-
- priv->vs18_enable = 0;
-
-#if CONFIG_IS_ENABLED(DM_REGULATOR)
- /*
- * If emmc I/O has a fixed voltage at 1.8V, this must be provided,
- * otherwise, emmc will work abnormally.
- */
- ret = device_get_supply_regulator(dev, "vqmmc-supply", &vqmmc_dev);
- if (ret) {
- dev_dbg(dev, "no vqmmc-supply\n");
- } else {
- ret = regulator_set_enable(vqmmc_dev, true);
- if (ret) {
- dev_err(dev, "fail to enable vqmmc-supply\n");
- return ret;
- }
-
- if (regulator_get_value(vqmmc_dev) == 1800000)
- priv->vs18_enable = 1;
- }
-#endif
-
- if (fdt_get_property(fdt, node, "no-1-8-v", NULL))
- priv->caps &= ~(UHS_CAPS | MMC_MODE_HS200 | MMC_MODE_HS400);
-
- /*
- * TODO:
- * Because lack of clk driver, if SDHC clk is not enabled,
- * need to enable it first before this driver is invoked.
- *
- * we use MXC_ESDHC_CLK to get clk freq.
- * If one would like to make this function work,
- * the aliases should be provided in dts as this:
- *
- * aliases {
- * mmc0 = &usdhc1;
- * mmc1 = &usdhc2;
- * mmc2 = &usdhc3;
- * mmc3 = &usdhc4;
- * };
- * Then if your board only supports mmc2 and mmc3, but we can
- * correctly get the seq as 2 and 3, then let mxc_get_clock
- * work as expected.
- */
-
- init_clk_usdhc(dev->seq);
+ priv->wp_enable = 1;
if (IS_ENABLED(CONFIG_CLK)) {
/* Assigned clock already set clock */
@@ -1656,28 +1081,10 @@ static const struct dm_mmc_ops fsl_esdhc_ops = {
.get_cd = fsl_esdhc_get_cd,
.send_cmd = fsl_esdhc_send_cmd,
.set_ios = fsl_esdhc_set_ios,
-#ifdef MMC_SUPPORTS_TUNING
- .execute_tuning = fsl_esdhc_execute_tuning,
-#endif
};
#endif
-static struct esdhc_soc_data usdhc_imx7d_data = {
- .flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
- | ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200
- | ESDHC_FLAG_HS400,
- .caps = UHS_CAPS | MMC_MODE_HS200 | MMC_MODE_DDR_52MHz |
- MMC_MODE_HS_52MHz | MMC_MODE_HS,
-};
-
static const struct udevice_id fsl_esdhc_ids[] = {
- { .compatible = "fsl,imx53-esdhc", },
- { .compatible = "fsl,imx6ul-usdhc", },
- { .compatible = "fsl,imx6sx-usdhc", },
- { .compatible = "fsl,imx6sl-usdhc", },
- { .compatible = "fsl,imx6q-usdhc", },
- { .compatible = "fsl,imx7d-usdhc", .data = (ulong)&usdhc_imx7d_data,},
- { .compatible = "fsl,imx7ulp-usdhc", },
{ .compatible = "fsl,esdhc", },
{ /* sentinel */ }
};
diff --git a/drivers/mmc/fsl_esdhc_imx.c b/drivers/mmc/fsl_esdhc_imx.c
new file mode 100644
index 0000000000..c0d47ba378
--- /dev/null
+++ b/drivers/mmc/fsl_esdhc_imx.c
@@ -0,0 +1,1650 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2007, 2010-2011 Freescale Semiconductor, Inc
+ * Copyright 2019 NXP Semiconductors
+ * Andy Fleming
+ * Yangbo Lu <yangbo.lu@nxp.com>
+ *
+ * Based vaguely on the pxa mmc code:
+ * (C) Copyright 2003
+ * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
+ */
+
+#include <config.h>
+#include <common.h>
+#include <command.h>
+#include <clk.h>
+#include <errno.h>
+#include <hwconfig.h>
+#include <mmc.h>
+#include <part.h>
+#include <power/regulator.h>
+#include <malloc.h>
+#include <fsl_esdhc_imx.h>
+#include <fdt_support.h>
+#include <asm/io.h>
+#include <dm.h>
+#include <asm-generic/gpio.h>
+#include <dm/pinctrl.h>
+
+#if !CONFIG_IS_ENABLED(BLK)
+#include "mmc_private.h"
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define SDHCI_IRQ_EN_BITS (IRQSTATEN_CC | IRQSTATEN_TC | \
+ IRQSTATEN_CINT | \
+ IRQSTATEN_CTOE | IRQSTATEN_CCE | IRQSTATEN_CEBE | \
+ IRQSTATEN_CIE | IRQSTATEN_DTOE | IRQSTATEN_DCE | \
+ IRQSTATEN_DEBE | IRQSTATEN_BRR | IRQSTATEN_BWR | \
+ IRQSTATEN_DINT)
+#define MAX_TUNING_LOOP 40
+#define ESDHC_DRIVER_STAGE_VALUE 0xffffffff
+
+struct fsl_esdhc {
+ uint dsaddr; /* SDMA system address register */
+ uint blkattr; /* Block attributes register */
+ uint cmdarg; /* Command argument register */
+ uint xfertyp; /* Transfer type register */
+ uint cmdrsp0; /* Command response 0 register */
+ uint cmdrsp1; /* Command response 1 register */
+ uint cmdrsp2; /* Command response 2 register */
+ uint cmdrsp3; /* Command response 3 register */
+ uint datport; /* Buffer data port register */
+ uint prsstat; /* Present state register */
+ uint proctl; /* Protocol control register */
+ uint sysctl; /* System Control Register */
+ uint irqstat; /* Interrupt status register */
+ uint irqstaten; /* Interrupt status enable register */
+ uint irqsigen; /* Interrupt signal enable register */
+ uint autoc12err; /* Auto CMD error status register */
+ uint hostcapblt; /* Host controller capabilities register */
+ uint wml; /* Watermark level register */
+ uint mixctrl; /* For USDHC */
+ char reserved1[4]; /* reserved */
+ uint fevt; /* Force event register */
+ uint admaes; /* ADMA error status register */
+ uint adsaddr; /* ADMA system address register */
+ char reserved2[4];
+ uint dllctrl;
+ uint dllstat;
+ uint clktunectrlstatus;
+ char reserved3[4];
+ uint strobe_dllctrl;
+ uint strobe_dllstat;
+ char reserved4[72];
+ uint vendorspec;
+ uint mmcboot;
+ uint vendorspec2;
+ uint tuning_ctrl; /* on i.MX6/7/8 */
+ char reserved5[44];
+ uint hostver; /* Host controller version register */
+ char reserved6[4]; /* reserved */
+ uint dmaerraddr; /* DMA error address register */
+ char reserved7[4]; /* reserved */
+ uint dmaerrattr; /* DMA error attribute register */
+ char reserved8[4]; /* reserved */
+ uint hostcapblt2; /* Host controller capabilities register 2 */
+ char reserved9[8]; /* reserved */
+ uint tcr; /* Tuning control register */
+ char reserved10[28]; /* reserved */
+ uint sddirctl; /* SD direction control register */
+ char reserved11[712];/* reserved */
+ uint scr; /* eSDHC control register */
+};
+
+struct fsl_esdhc_plat {
+ struct mmc_config cfg;
+ struct mmc mmc;
+};
+
+struct esdhc_soc_data {
+ u32 flags;
+ u32 caps;
+};
+
+/**
+ * struct fsl_esdhc_priv
+ *
+ * @esdhc_regs: registers of the sdhc controller
+ * @sdhc_clk: Current clk of the sdhc controller
+ * @bus_width: bus width, 1bit, 4bit or 8bit
+ * @cfg: mmc config
+ * @mmc: mmc
+ * Following is used when Driver Model is enabled for MMC
+ * @dev: pointer for the device
+ * @non_removable: 0: removable; 1: non-removable
+ * @wp_enable: 1: enable checking wp; 0: no check
+ * @vs18_enable: 1: use 1.8V voltage; 0: use 3.3V
+ * @flags: ESDHC_FLAG_xx in include/fsl_esdhc_imx.h
+ * @caps: controller capabilities
+ * @tuning_step: tuning step setting in tuning_ctrl register
+ * @start_tuning_tap: the start point for tuning in tuning_ctrl register
+ * @strobe_dll_delay_target: settings in strobe_dllctrl
+ * @signal_voltage: indicating the current voltage
+ * @cd_gpio: gpio for card detection
+ * @wp_gpio: gpio for write protection
+ */
+struct fsl_esdhc_priv {
+ struct fsl_esdhc *esdhc_regs;
+ unsigned int sdhc_clk;
+ struct clk per_clk;
+ unsigned int clock;
+ unsigned int mode;
+ unsigned int bus_width;
+#if !CONFIG_IS_ENABLED(BLK)
+ struct mmc *mmc;
+#endif
+ struct udevice *dev;
+ int non_removable;
+ int wp_enable;
+ int vs18_enable;
+ u32 flags;
+ u32 caps;
+ u32 tuning_step;
+ u32 tuning_start_tap;
+ u32 strobe_dll_delay_target;
+ u32 signal_voltage;
+#if IS_ENABLED(CONFIG_DM_REGULATOR)
+ struct udevice *vqmmc_dev;
+ struct udevice *vmmc_dev;
+#endif
+#ifdef CONFIG_DM_GPIO
+ struct gpio_desc cd_gpio;
+ struct gpio_desc wp_gpio;
+#endif
+};
+
+/* Return the XFERTYP flags for a given command and data packet */
+static uint esdhc_xfertyp(struct mmc_cmd *cmd, struct mmc_data *data)
+{
+ uint xfertyp = 0;
+
+ if (data) {
+ xfertyp |= XFERTYP_DPSEL;
+#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
+ xfertyp |= XFERTYP_DMAEN;
+#endif
+ if (data->blocks > 1) {
+ xfertyp |= XFERTYP_MSBSEL;
+ xfertyp |= XFERTYP_BCEN;
+#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC111
+ xfertyp |= XFERTYP_AC12EN;
+#endif
+ }
+
+ if (data->flags & MMC_DATA_READ)
+ xfertyp |= XFERTYP_DTDSEL;
+ }
+
+ if (cmd->resp_type & MMC_RSP_CRC)
+ xfertyp |= XFERTYP_CCCEN;
+ if (cmd->resp_type & MMC_RSP_OPCODE)
+ xfertyp |= XFERTYP_CICEN;
+ if (cmd->resp_type & MMC_RSP_136)
+ xfertyp |= XFERTYP_RSPTYP_136;
+ else if (cmd->resp_type & MMC_RSP_BUSY)
+ xfertyp |= XFERTYP_RSPTYP_48_BUSY;
+ else if (cmd->resp_type & MMC_RSP_PRESENT)
+ xfertyp |= XFERTYP_RSPTYP_48;
+
+ if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
+ xfertyp |= XFERTYP_CMDTYP_ABORT;
+
+ return XFERTYP_CMD(cmd->cmdidx) | xfertyp;
+}
+
+#ifdef CONFIG_SYS_FSL_ESDHC_USE_PIO
+/*
+ * PIO Read/Write Mode reduce the performace as DMA is not used in this mode.
+ */
+static void esdhc_pio_read_write(struct fsl_esdhc_priv *priv,
+ struct mmc_data *data)
+{
+ struct fsl_esdhc *regs = priv->esdhc_regs;
+ uint blocks;
+ char *buffer;
+ uint databuf;
+ uint size;
+ uint irqstat;
+ ulong start;
+
+ if (data->flags & MMC_DATA_READ) {
+ blocks = data->blocks;
+ buffer = data->dest;
+ while (blocks) {
+ start = get_timer(0);
+ size = data->blocksize;
+ irqstat = esdhc_read32(&regs->irqstat);
+ while (!(esdhc_read32(&regs->prsstat) & PRSSTAT_BREN)) {
+ if (get_timer(start) > PIO_TIMEOUT) {
+ printf("\nData Read Failed in PIO Mode.");
+ return;
+ }
+ }
+ while (size && (!(irqstat & IRQSTAT_TC))) {
+ udelay(100); /* Wait before last byte transfer complete */
+ irqstat = esdhc_read32(&regs->irqstat);
+ databuf = in_le32(&regs->datport);
+ *((uint *)buffer) = databuf;
+ buffer += 4;
+ size -= 4;
+ }
+ blocks--;
+ }
+ } else {
+ blocks = data->blocks;
+ buffer = (char *)data->src;
+ while (blocks) {
+ start = get_timer(0);
+ size = data->blocksize;
+ irqstat = esdhc_read32(&regs->irqstat);
+ while (!(esdhc_read32(&regs->prsstat) & PRSSTAT_BWEN)) {
+ if (get_timer(start) > PIO_TIMEOUT) {
+ printf("\nData Write Failed in PIO Mode.");
+ return;
+ }
+ }
+ while (size && (!(irqstat & IRQSTAT_TC))) {
+ udelay(100); /* Wait before last byte transfer complete */
+ databuf = *((uint *)buffer);
+ buffer += 4;
+ size -= 4;
+ irqstat = esdhc_read32(&regs->irqstat);
+ out_le32(&regs->datport, databuf);
+ }
+ blocks--;
+ }
+ }
+}
+#endif
+
+static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc,
+ struct mmc_data *data)
+{
+ int timeout;
+ struct fsl_esdhc *regs = priv->esdhc_regs;
+#if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
+ dma_addr_t addr;
+#endif
+ uint wml_value;
+
+ wml_value = data->blocksize/4;
+
+ if (data->flags & MMC_DATA_READ) {
+ if (wml_value > WML_RD_WML_MAX)
+ wml_value = WML_RD_WML_MAX_VAL;
+
+ esdhc_clrsetbits32(&regs->wml, WML_RD_WML_MASK, wml_value);
+#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
+#if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
+ addr = virt_to_phys((void *)(data->dest));
+ if (upper_32_bits(addr))
+ printf("Error found for upper 32 bits\n");
+ else
+ esdhc_write32(&regs->dsaddr, lower_32_bits(addr));
+#else
+ esdhc_write32(&regs->dsaddr, (u32)data->dest);
+#endif
+#endif
+ } else {
+#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
+ flush_dcache_range((ulong)data->src,
+ (ulong)data->src+data->blocks
+ *data->blocksize);
+#endif
+ if (wml_value > WML_WR_WML_MAX)
+ wml_value = WML_WR_WML_MAX_VAL;
+ if (priv->wp_enable) {
+ if ((esdhc_read32(&regs->prsstat) &
+ PRSSTAT_WPSPL) == 0) {
+ 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,
+ wml_value << 16);
+#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
+#if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
+ addr = virt_to_phys((void *)(data->src));
+ if (upper_32_bits(addr))
+ printf("Error found for upper 32 bits\n");
+ else
+ esdhc_write32(&regs->dsaddr, lower_32_bits(addr));
+#else
+ esdhc_write32(&regs->dsaddr, (u32)data->src);
+#endif
+#endif
+ }
+
+ esdhc_write32(&regs->blkattr, data->blocks << 16 | data->blocksize);
+
+ /* Calculate the timeout period for data transactions */
+ /*
+ * 1)Timeout period = (2^(timeout+13)) SD Clock cycles
+ * 2)Timeout period should be minimum 0.250sec as per SD Card spec
+ * So, Number of SD Clock cycles for 0.25sec should be minimum
+ * (SD Clock/sec * 0.25 sec) SD Clock cycles
+ * = (mmc->clock * 1/4) SD Clock cycles
+ * As 1) >= 2)
+ * => (2^(timeout+13)) >= mmc->clock * 1/4
+ * Taking log2 both the sides
+ * => timeout + 13 >= log2(mmc->clock/4)
+ * Rounding up to next power of 2
+ * => timeout + 13 = log2(mmc->clock/4) + 1
+ * => timeout + 13 = fls(mmc->clock/4)
+ *
+ * However, the MMC spec "It is strongly recommended for hosts to
+ * implement more than 500ms timeout value even if the card
+ * indicates the 250ms maximum busy length." Even the previous
+ * value of 300ms is known to be insufficient for some cards.
+ * So, we use
+ * => timeout + 13 = fls(mmc->clock/2)
+ */
+ timeout = fls(mmc->clock/2);
+ timeout -= 13;
+
+ if (timeout > 14)
+ timeout = 14;
+
+ if (timeout < 0)
+ timeout = 0;
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC_A001
+ if ((timeout == 4) || (timeout == 8) || (timeout == 12))
+ timeout++;
+#endif
+
+#ifdef ESDHCI_QUIRK_BROKEN_TIMEOUT_VALUE
+ timeout = 0xE;
+#endif
+ esdhc_clrsetbits32(&regs->sysctl, SYSCTL_TIMEOUT_MASK, timeout << 16);
+
+ return 0;
+}
+
+static void check_and_invalidate_dcache_range
+ (struct mmc_cmd *cmd,
+ struct mmc_data *data) {
+ unsigned start = 0;
+ unsigned end = 0;
+ unsigned size = roundup(ARCH_DMA_MINALIGN,
+ data->blocks*data->blocksize);
+#if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
+ dma_addr_t addr;
+
+ addr = virt_to_phys((void *)(data->dest));
+ if (upper_32_bits(addr))
+ printf("Error found for upper 32 bits\n");
+ else
+ start = lower_32_bits(addr);
+#else
+ start = (unsigned)data->dest;
+#endif
+ end = start + size;
+ invalidate_dcache_range(start, end);
+}
+
+#ifdef CONFIG_MCF5441x
+/*
+ * Swaps 32-bit words to little-endian byte order.
+ */
+static inline void sd_swap_dma_buff(struct mmc_data *data)
+{
+ int i, size = data->blocksize >> 2;
+ u32 *buffer = (u32 *)data->dest;
+ u32 sw;
+
+ while (data->blocks--) {
+ for (i = 0; i < size; i++) {
+ sw = __sw32(*buffer);
+ *buffer++ = sw;
+ }
+ }
+}
+#endif
+
+/*
+ * Sends a command out on the bus. Takes the mmc pointer,
+ * a command pointer, and an optional data pointer.
+ */
+static int esdhc_send_cmd_common(struct fsl_esdhc_priv *priv, struct mmc *mmc,
+ struct mmc_cmd *cmd, struct mmc_data *data)
+{
+ int err = 0;
+ uint xfertyp;
+ uint irqstat;
+ u32 flags = IRQSTAT_CC | IRQSTAT_CTOE;
+ struct fsl_esdhc *regs = priv->esdhc_regs;
+ unsigned long start;
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC111
+ if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
+ return 0;
+#endif
+
+ esdhc_write32(&regs->irqstat, -1);
+
+ sync();
+
+ /* Wait for the bus to be idle */
+ while ((esdhc_read32(&regs->prsstat) & PRSSTAT_CICHB) ||
+ (esdhc_read32(&regs->prsstat) & PRSSTAT_CIDHB))
+ ;
+
+ while (esdhc_read32(&regs->prsstat) & PRSSTAT_DLA)
+ ;
+
+ /* Wait at least 8 SD clock cycles before the next command */
+ /*
+ * Note: This is way more than 8 cycles, but 1ms seems to
+ * resolve timing issues with some cards
+ */
+ udelay(1000);
+
+ /* Set up for a data transfer if we have one */
+ if (data) {
+ err = esdhc_setup_data(priv, mmc, data);
+ if(err)
+ return err;
+
+ if (data->flags & MMC_DATA_READ)
+ check_and_invalidate_dcache_range(cmd, data);
+ }
+
+ /* Figure out the transfer arguments */
+ xfertyp = esdhc_xfertyp(cmd, data);
+
+ /* Mask all irqs */
+ esdhc_write32(&regs->irqsigen, 0);
+
+ /* Send the command */
+ esdhc_write32(&regs->cmdarg, cmd->cmdarg);
+#if defined(CONFIG_FSL_USDHC)
+ esdhc_write32(&regs->mixctrl,
+ (esdhc_read32(&regs->mixctrl) & 0xFFFFFF80) | (xfertyp & 0x7F)
+ | (mmc->ddr_mode ? XFERTYP_DDREN : 0));
+ esdhc_write32(&regs->xfertyp, xfertyp & 0xFFFF0000);
+#else
+ esdhc_write32(&regs->xfertyp, xfertyp);
+#endif
+
+ if ((cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK) ||
+ (cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200))
+ flags = IRQSTAT_BRR;
+
+ /* Wait for the command to complete */
+ start = get_timer(0);
+ while (!(esdhc_read32(&regs->irqstat) & flags)) {
+ if (get_timer(start) > 1000) {
+ err = -ETIMEDOUT;
+ goto out;
+ }
+ }
+
+ irqstat = esdhc_read32(&regs->irqstat);
+
+ if (irqstat & CMD_ERR) {
+ err = -ECOMM;
+ goto out;
+ }
+
+ if (irqstat & IRQSTAT_CTOE) {
+ err = -ETIMEDOUT;
+ goto out;
+ }
+
+ /* Switch voltage to 1.8V if CMD11 succeeded */
+ if (cmd->cmdidx == SD_CMD_SWITCH_UHS18V) {
+ esdhc_setbits32(&regs->vendorspec, ESDHC_VENDORSPEC_VSELECT);
+
+ printf("Run CMD11 1.8V switch\n");
+ /* Sleep for 5 ms - max time for card to switch to 1.8V */
+ udelay(5000);
+ }
+
+ /* Workaround for ESDHC errata ENGcm03648 */
+ if (!data && (cmd->resp_type & MMC_RSP_BUSY)) {
+ int timeout = 6000;
+
+ /* Poll on DATA0 line for cmd with busy signal for 600 ms */
+ while (timeout > 0 && !(esdhc_read32(&regs->prsstat) &
+ PRSSTAT_DAT0)) {
+ udelay(100);
+ timeout--;
+ }
+
+ if (timeout <= 0) {
+ printf("Timeout waiting for DAT0 to go high!\n");
+ err = -ETIMEDOUT;
+ goto out;
+ }
+ }
+
+ /* Copy the response to the response buffer */
+ if (cmd->resp_type & MMC_RSP_136) {
+ u32 cmdrsp3, cmdrsp2, cmdrsp1, cmdrsp0;
+
+ cmdrsp3 = esdhc_read32(&regs->cmdrsp3);
+ cmdrsp2 = esdhc_read32(&regs->cmdrsp2);
+ cmdrsp1 = esdhc_read32(&regs->cmdrsp1);
+ cmdrsp0 = esdhc_read32(&regs->cmdrsp0);
+ cmd->response[0] = (cmdrsp3 << 8) | (cmdrsp2 >> 24);
+ cmd->response[1] = (cmdrsp2 << 8) | (cmdrsp1 >> 24);
+ cmd->response[2] = (cmdrsp1 << 8) | (cmdrsp0 >> 24);
+ cmd->response[3] = (cmdrsp0 << 8);
+ } else
+ cmd->response[0] = esdhc_read32(&regs->cmdrsp0);
+
+ /* Wait until all of the blocks are transferred */
+ if (data) {
+#ifdef CONFIG_SYS_FSL_ESDHC_USE_PIO
+ esdhc_pio_read_write(priv, data);
+#else
+ flags = DATA_COMPLETE;
+ if ((cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK) ||
+ (cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200)) {
+ flags = IRQSTAT_BRR;
+ }
+
+ do {
+ irqstat = esdhc_read32(&regs->irqstat);
+
+ if (irqstat & IRQSTAT_DTOE) {
+ err = -ETIMEDOUT;
+ goto out;
+ }
+
+ if (irqstat & DATA_ERR) {
+ err = -ECOMM;
+ goto out;
+ }
+ } while ((irqstat & flags) != flags);
+
+ /*
+ * Need invalidate the dcache here again to avoid any
+ * cache-fill during the DMA operations such as the
+ * speculative pre-fetching etc.
+ */
+ if (data->flags & MMC_DATA_READ) {
+ check_and_invalidate_dcache_range(cmd, data);
+#ifdef CONFIG_MCF5441x
+ sd_swap_dma_buff(data);
+#endif
+ }
+#endif
+ }
+
+out:
+ /* Reset CMD and DATA portions on error */
+ if (err) {
+ esdhc_write32(&regs->sysctl, esdhc_read32(&regs->sysctl) |
+ SYSCTL_RSTC);
+ while (esdhc_read32(&regs->sysctl) & SYSCTL_RSTC)
+ ;
+
+ if (data) {
+ esdhc_write32(&regs->sysctl,
+ esdhc_read32(&regs->sysctl) |
+ SYSCTL_RSTD);
+ while ((esdhc_read32(&regs->sysctl) & SYSCTL_RSTD))
+ ;
+ }
+
+ /* If this was CMD11, then notify that power cycle is needed */
+ if (cmd->cmdidx == SD_CMD_SWITCH_UHS18V)
+ printf("CMD11 to switch to 1.8V mode failed, card requires power cycle.\n");
+ }
+
+ esdhc_write32(&regs->irqstat, -1);
+
+ return err;
+}
+
+static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock)
+{
+ struct fsl_esdhc *regs = priv->esdhc_regs;
+ int div = 1;
+#ifdef ARCH_MXC
+#ifdef CONFIG_MX53
+ /* For i.MX53 eSDHCv3, SYSCTL.SDCLKFS may not be set to 0. */
+ int pre_div = (regs == (struct fsl_esdhc *)MMC_SDHC3_BASE_ADDR) ? 2 : 1;
+#else
+ int pre_div = 1;
+#endif
+#else
+ int pre_div = 2;
+#endif
+ int ddr_pre_div = mmc->ddr_mode ? 2 : 1;
+ int sdhc_clk = priv->sdhc_clk;
+ uint clk;
+
+ 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;
+
+ while (sdhc_clk / (div * pre_div * ddr_pre_div) > clock && div < 16)
+ div++;
+
+ pre_div >>= 1;
+ div -= 1;
+
+ clk = (pre_div << 8) | (div << 4);
+
+#ifdef CONFIG_FSL_USDHC
+ esdhc_clrbits32(&regs->vendorspec, VENDORSPEC_CKEN);
+#else
+ esdhc_clrbits32(&regs->sysctl, SYSCTL_CKEN);
+#endif
+
+ esdhc_clrsetbits32(&regs->sysctl, SYSCTL_CLOCK_MASK, clk);
+
+ udelay(10000);
+
+#ifdef CONFIG_FSL_USDHC
+ esdhc_setbits32(&regs->vendorspec, VENDORSPEC_PEREN | VENDORSPEC_CKEN);
+#else
+ esdhc_setbits32(&regs->sysctl, SYSCTL_PEREN | SYSCTL_CKEN);
+#endif
+
+ priv->clock = clock;
+}
+
+#ifdef CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK
+static void esdhc_clock_control(struct fsl_esdhc_priv *priv, bool enable)
+{
+ struct fsl_esdhc *regs = priv->esdhc_regs;
+ u32 value;
+ u32 time_out;
+
+ value = esdhc_read32(&regs->sysctl);
+
+ if (enable)
+ value |= SYSCTL_CKEN;
+ else
+ value &= ~SYSCTL_CKEN;
+
+ esdhc_write32(&regs->sysctl, value);
+
+ time_out = 20;
+ value = PRSSTAT_SDSTB;
+ while (!(esdhc_read32(&regs->prsstat) & value)) {
+ if (time_out == 0) {
+ printf("fsl_esdhc: Internal clock never stabilised.\n");
+ break;
+ }
+ time_out--;
+ mdelay(1);
+ }
+}
+#endif
+
+#ifdef MMC_SUPPORTS_TUNING
+static int esdhc_change_pinstate(struct udevice *dev)
+{
+ struct fsl_esdhc_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ switch (priv->mode) {
+ case UHS_SDR50:
+ case UHS_DDR50:
+ ret = pinctrl_select_state(dev, "state_100mhz");
+ break;
+ case UHS_SDR104:
+ case MMC_HS_200:
+ case MMC_HS_400:
+ ret = pinctrl_select_state(dev, "state_200mhz");
+ break;
+ default:
+ ret = pinctrl_select_state(dev, "default");
+ break;
+ }
+
+ if (ret)
+ printf("%s %d error\n", __func__, priv->mode);
+
+ return ret;
+}
+
+static void esdhc_reset_tuning(struct mmc *mmc)
+{
+ struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
+ struct fsl_esdhc *regs = priv->esdhc_regs;
+
+ if (priv->flags & ESDHC_FLAG_USDHC) {
+ if (priv->flags & ESDHC_FLAG_STD_TUNING) {
+ esdhc_clrbits32(&regs->autoc12err,
+ MIX_CTRL_SMPCLK_SEL |
+ MIX_CTRL_EXE_TUNE);
+ }
+ }
+}
+
+static void esdhc_set_strobe_dll(struct mmc *mmc)
+{
+ struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
+ struct fsl_esdhc *regs = priv->esdhc_regs;
+ u32 val;
+
+ if (priv->clock > ESDHC_STROBE_DLL_CLK_FREQ) {
+ writel(ESDHC_STROBE_DLL_CTRL_RESET, &regs->strobe_dllctrl);
+
+ /*
+ * enable strobe dll ctrl and adjust the delay target
+ * for the uSDHC loopback read clock
+ */
+ val = ESDHC_STROBE_DLL_CTRL_ENABLE |
+ (priv->strobe_dll_delay_target <<
+ ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_SHIFT);
+ writel(val, &regs->strobe_dllctrl);
+ /* wait 1us to make sure strobe dll status register stable */
+ mdelay(1);
+ val = readl(&regs->strobe_dllstat);
+ if (!(val & ESDHC_STROBE_DLL_STS_REF_LOCK))
+ pr_warn("HS400 strobe DLL status REF not lock!\n");
+ if (!(val & ESDHC_STROBE_DLL_STS_SLV_LOCK))
+ pr_warn("HS400 strobe DLL status SLV not lock!\n");
+ }
+}
+
+static int esdhc_set_timing(struct mmc *mmc)
+{
+ struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
+ struct fsl_esdhc *regs = priv->esdhc_regs;
+ u32 mixctrl;
+
+ mixctrl = readl(&regs->mixctrl);
+ mixctrl &= ~(MIX_CTRL_DDREN | MIX_CTRL_HS400_EN);
+
+ switch (mmc->selected_mode) {
+ case MMC_LEGACY:
+ case SD_LEGACY:
+ esdhc_reset_tuning(mmc);
+ writel(mixctrl, &regs->mixctrl);
+ break;
+ case MMC_HS_400:
+ mixctrl |= MIX_CTRL_DDREN | MIX_CTRL_HS400_EN;
+ writel(mixctrl, &regs->mixctrl);
+ esdhc_set_strobe_dll(mmc);
+ break;
+ case MMC_HS:
+ case MMC_HS_52:
+ case MMC_HS_200:
+ case SD_HS:
+ case UHS_SDR12:
+ case UHS_SDR25:
+ case UHS_SDR50:
+ case UHS_SDR104:
+ writel(mixctrl, &regs->mixctrl);
+ break;
+ case UHS_DDR50:
+ case MMC_DDR_52:
+ mixctrl |= MIX_CTRL_DDREN;
+ writel(mixctrl, &regs->mixctrl);
+ break;
+ default:
+ printf("Not supported %d\n", mmc->selected_mode);
+ return -EINVAL;
+ }
+
+ priv->mode = mmc->selected_mode;
+
+ return esdhc_change_pinstate(mmc->dev);
+}
+
+static int esdhc_set_voltage(struct mmc *mmc)
+{
+ struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
+ struct fsl_esdhc *regs = priv->esdhc_regs;
+ int ret;
+
+ priv->signal_voltage = mmc->signal_voltage;
+ switch (mmc->signal_voltage) {
+ case MMC_SIGNAL_VOLTAGE_330:
+ if (priv->vs18_enable)
+ return -EIO;
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
+ if (!IS_ERR_OR_NULL(priv->vqmmc_dev)) {
+ ret = regulator_set_value(priv->vqmmc_dev, 3300000);
+ if (ret) {
+ printf("Setting to 3.3V error");
+ return -EIO;
+ }
+ /* Wait for 5ms */
+ mdelay(5);
+ }
+#endif
+
+ esdhc_clrbits32(&regs->vendorspec, ESDHC_VENDORSPEC_VSELECT);
+ if (!(esdhc_read32(&regs->vendorspec) &
+ ESDHC_VENDORSPEC_VSELECT))
+ return 0;
+
+ return -EAGAIN;
+ case MMC_SIGNAL_VOLTAGE_180:
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
+ if (!IS_ERR_OR_NULL(priv->vqmmc_dev)) {
+ ret = regulator_set_value(priv->vqmmc_dev, 1800000);
+ if (ret) {
+ printf("Setting to 1.8V error");
+ return -EIO;
+ }
+ }
+#endif
+ esdhc_setbits32(&regs->vendorspec, ESDHC_VENDORSPEC_VSELECT);
+ if (esdhc_read32(&regs->vendorspec) & ESDHC_VENDORSPEC_VSELECT)
+ return 0;
+
+ return -EAGAIN;
+ case MMC_SIGNAL_VOLTAGE_120:
+ return -ENOTSUPP;
+ default:
+ return 0;
+ }
+}
+
+static void esdhc_stop_tuning(struct mmc *mmc)
+{
+ struct mmc_cmd cmd;
+
+ cmd.cmdidx = MMC_CMD_STOP_TRANSMISSION;
+ cmd.cmdarg = 0;
+ cmd.resp_type = MMC_RSP_R1b;
+
+ dm_mmc_send_cmd(mmc->dev, &cmd, NULL);
+}
+
+static int fsl_esdhc_execute_tuning(struct udevice *dev, uint32_t opcode)
+{
+ struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
+ struct fsl_esdhc_priv *priv = dev_get_priv(dev);
+ struct fsl_esdhc *regs = priv->esdhc_regs;
+ struct mmc *mmc = &plat->mmc;
+ u32 irqstaten = readl(&regs->irqstaten);
+ u32 irqsigen = readl(&regs->irqsigen);
+ int i, ret = -ETIMEDOUT;
+ u32 val, mixctrl;
+
+ /* clock tuning is not needed for upto 52MHz */
+ if (mmc->clock <= 52000000)
+ return 0;
+
+ /* This is readw/writew SDHCI_HOST_CONTROL2 when tuning */
+ if (priv->flags & ESDHC_FLAG_STD_TUNING) {
+ val = readl(&regs->autoc12err);
+ mixctrl = readl(&regs->mixctrl);
+ val &= ~MIX_CTRL_SMPCLK_SEL;
+ mixctrl &= ~(MIX_CTRL_FBCLK_SEL | MIX_CTRL_AUTO_TUNE_EN);
+
+ val |= MIX_CTRL_EXE_TUNE;
+ mixctrl |= MIX_CTRL_FBCLK_SEL | MIX_CTRL_AUTO_TUNE_EN;
+
+ writel(val, &regs->autoc12err);
+ writel(mixctrl, &regs->mixctrl);
+ }
+
+ /* sdhci_writew(host, SDHCI_TRNS_READ, SDHCI_TRANSFER_MODE); */
+ mixctrl = readl(&regs->mixctrl);
+ mixctrl = MIX_CTRL_DTDSEL_READ | (mixctrl & ~MIX_CTRL_SDHCI_MASK);
+ writel(mixctrl, &regs->mixctrl);
+
+ writel(IRQSTATEN_BRR, &regs->irqstaten);
+ writel(IRQSTATEN_BRR, &regs->irqsigen);
+
+ /*
+ * Issue opcode repeatedly till Execute Tuning is set to 0 or the number
+ * of loops reaches 40 times.
+ */
+ for (i = 0; i < MAX_TUNING_LOOP; i++) {
+ u32 ctrl;
+
+ if (opcode == MMC_CMD_SEND_TUNING_BLOCK_HS200) {
+ if (mmc->bus_width == 8)
+ writel(0x7080, &regs->blkattr);
+ else if (mmc->bus_width == 4)
+ writel(0x7040, &regs->blkattr);
+ } else {
+ writel(0x7040, &regs->blkattr);
+ }
+
+ /* sdhci_writew(host, SDHCI_TRNS_READ, SDHCI_TRANSFER_MODE) */
+ val = readl(&regs->mixctrl);
+ val = MIX_CTRL_DTDSEL_READ | (val & ~MIX_CTRL_SDHCI_MASK);
+ writel(val, &regs->mixctrl);
+
+ /* We are using STD tuning, no need to check return value */
+ mmc_send_tuning(mmc, opcode, NULL);
+
+ ctrl = readl(&regs->autoc12err);
+ if ((!(ctrl & MIX_CTRL_EXE_TUNE)) &&
+ (ctrl & MIX_CTRL_SMPCLK_SEL)) {
+ /*
+ * need to wait some time, make sure sd/mmc fininsh
+ * send out tuning data, otherwise, the sd/mmc can't
+ * response to any command when the card still out
+ * put the tuning data.
+ */
+ mdelay(1);
+ ret = 0;
+ break;
+ }
+
+ /* Add 1ms delay for SD and eMMC */
+ mdelay(1);
+ }
+
+ writel(irqstaten, &regs->irqstaten);
+ writel(irqsigen, &regs->irqsigen);
+
+ esdhc_stop_tuning(mmc);
+
+ return ret;
+}
+#endif
+
+static int esdhc_set_ios_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
+{
+ struct fsl_esdhc *regs = priv->esdhc_regs;
+ int ret __maybe_unused;
+
+#ifdef CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK
+ /* Select to use peripheral clock */
+ esdhc_clock_control(priv, false);
+ esdhc_setbits32(&regs->scr, ESDHCCTL_PCS);
+ esdhc_clock_control(priv, true);
+#endif
+ /* Set the clock speed */
+ if (priv->clock != mmc->clock)
+ set_sysctl(priv, mmc, mmc->clock);
+
+#ifdef MMC_SUPPORTS_TUNING
+ if (mmc->clk_disable) {
+#ifdef CONFIG_FSL_USDHC
+ esdhc_clrbits32(&regs->vendorspec, VENDORSPEC_CKEN);
+#else
+ esdhc_clrbits32(&regs->sysctl, SYSCTL_CKEN);
+#endif
+ } else {
+#ifdef CONFIG_FSL_USDHC
+ esdhc_setbits32(&regs->vendorspec, VENDORSPEC_PEREN |
+ VENDORSPEC_CKEN);
+#else
+ esdhc_setbits32(&regs->sysctl, SYSCTL_PEREN | SYSCTL_CKEN);
+#endif
+ }
+
+ if (priv->mode != mmc->selected_mode) {
+ ret = esdhc_set_timing(mmc);
+ if (ret) {
+ printf("esdhc_set_timing error %d\n", ret);
+ return ret;
+ }
+ }
+
+ if (priv->signal_voltage != mmc->signal_voltage) {
+ ret = esdhc_set_voltage(mmc);
+ if (ret) {
+ printf("esdhc_set_voltage error %d\n", ret);
+ return ret;
+ }
+ }
+#endif
+
+ /* Set the bus width */
+ esdhc_clrbits32(&regs->proctl, PROCTL_DTW_4 | PROCTL_DTW_8);
+
+ if (mmc->bus_width == 4)
+ esdhc_setbits32(&regs->proctl, PROCTL_DTW_4);
+ else if (mmc->bus_width == 8)
+ esdhc_setbits32(&regs->proctl, PROCTL_DTW_8);
+
+ return 0;
+}
+
+static int esdhc_init_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
+{
+ struct fsl_esdhc *regs = priv->esdhc_regs;
+ ulong start;
+
+ /* Reset the entire host controller */
+ esdhc_setbits32(&regs->sysctl, SYSCTL_RSTA);
+
+ /* Wait until the controller is available */
+ start = get_timer(0);
+ while ((esdhc_read32(&regs->sysctl) & SYSCTL_RSTA)) {
+ if (get_timer(start) > 1000)
+ return -ETIMEDOUT;
+ }
+
+#if defined(CONFIG_FSL_USDHC)
+ /* RSTA doesn't reset MMC_BOOT register, so manually reset it */
+ esdhc_write32(&regs->mmcboot, 0x0);
+ /* Reset MIX_CTRL and CLK_TUNE_CTRL_STATUS regs to 0 */
+ esdhc_write32(&regs->mixctrl, 0x0);
+ esdhc_write32(&regs->clktunectrlstatus, 0x0);
+
+ /* Put VEND_SPEC to default value */
+ if (priv->vs18_enable)
+ esdhc_write32(&regs->vendorspec, (VENDORSPEC_INIT |
+ ESDHC_VENDORSPEC_VSELECT));
+ else
+ esdhc_write32(&regs->vendorspec, VENDORSPEC_INIT);
+
+ /* Disable DLL_CTRL delay line */
+ esdhc_write32(&regs->dllctrl, 0x0);
+#endif
+
+#ifndef ARCH_MXC
+ /* Enable cache snooping */
+ esdhc_write32(&regs->scr, 0x00000040);
+#endif
+
+#ifndef CONFIG_FSL_USDHC
+ esdhc_setbits32(&regs->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
+#else
+ esdhc_setbits32(&regs->vendorspec, VENDORSPEC_HCKEN | VENDORSPEC_IPGEN);
+#endif
+
+ /* Set the initial clock speed */
+ mmc_set_clock(mmc, 400000, MMC_CLK_ENABLE);
+
+ /* Disable the BRR and BWR bits in IRQSTAT */
+ esdhc_clrbits32(&regs->irqstaten, IRQSTATEN_BRR | IRQSTATEN_BWR);
+
+#ifdef CONFIG_MCF5441x
+ esdhc_write32(&regs->proctl, PROCTL_INIT | PROCTL_D3CD);
+#else
+ /* Put the PROCTL reg back to the default */
+ esdhc_write32(&regs->proctl, PROCTL_INIT);
+#endif
+
+ /* Set timout to the maximum value */
+ esdhc_clrsetbits32(&regs->sysctl, SYSCTL_TIMEOUT_MASK, 14 << 16);
+
+ return 0;
+}
+
+static int esdhc_getcd_common(struct fsl_esdhc_priv *priv)
+{
+ struct fsl_esdhc *regs = priv->esdhc_regs;
+ int timeout = 1000;
+
+#ifdef CONFIG_ESDHC_DETECT_QUIRK
+ if (CONFIG_ESDHC_DETECT_QUIRK)
+ return 1;
+#endif
+
+#if CONFIG_IS_ENABLED(DM_MMC)
+ if (priv->non_removable)
+ return 1;
+#ifdef CONFIG_DM_GPIO
+ if (dm_gpio_is_valid(&priv->cd_gpio))
+ return dm_gpio_get_value(&priv->cd_gpio);
+#endif
+#endif
+
+ while (!(esdhc_read32(&regs->prsstat) & PRSSTAT_CINS) && --timeout)
+ udelay(1000);
+
+ return timeout > 0;
+}
+
+static int esdhc_reset(struct fsl_esdhc *regs)
+{
+ ulong start;
+
+ /* reset the controller */
+ esdhc_setbits32(&regs->sysctl, SYSCTL_RSTA);
+
+ /* hardware clears the bit when it is done */
+ start = get_timer(0);
+ while ((esdhc_read32(&regs->sysctl) & SYSCTL_RSTA)) {
+ if (get_timer(start) > 100) {
+ printf("MMC/SD: Reset never completed.\n");
+ return -ETIMEDOUT;
+ }
+ }
+
+ return 0;
+}
+
+#if !CONFIG_IS_ENABLED(DM_MMC)
+static int esdhc_getcd(struct mmc *mmc)
+{
+ struct fsl_esdhc_priv *priv = mmc->priv;
+
+ return esdhc_getcd_common(priv);
+}
+
+static int esdhc_init(struct mmc *mmc)
+{
+ struct fsl_esdhc_priv *priv = mmc->priv;
+
+ return esdhc_init_common(priv, mmc);
+}
+
+static int esdhc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
+ struct mmc_data *data)
+{
+ struct fsl_esdhc_priv *priv = mmc->priv;
+
+ return esdhc_send_cmd_common(priv, mmc, cmd, data);
+}
+
+static int esdhc_set_ios(struct mmc *mmc)
+{
+ struct fsl_esdhc_priv *priv = mmc->priv;
+
+ return esdhc_set_ios_common(priv, mmc);
+}
+
+static const struct mmc_ops esdhc_ops = {
+ .getcd = esdhc_getcd,
+ .init = esdhc_init,
+ .send_cmd = esdhc_send_cmd,
+ .set_ios = esdhc_set_ios,
+};
+#endif
+
+static int fsl_esdhc_init(struct fsl_esdhc_priv *priv,
+ struct fsl_esdhc_plat *plat)
+{
+ struct mmc_config *cfg;
+ struct fsl_esdhc *regs;
+ u32 caps, voltage_caps;
+ int ret;
+
+ if (!priv)
+ return -EINVAL;
+
+ regs = priv->esdhc_regs;
+
+ /* First reset the eSDHC controller */
+ ret = esdhc_reset(regs);
+ if (ret)
+ return ret;
+
+#ifdef CONFIG_MCF5441x
+ /* ColdFire, using SDHC_DATA[3] for card detection */
+ esdhc_write32(&regs->proctl, PROCTL_INIT | PROCTL_D3CD);
+#endif
+
+#ifndef CONFIG_FSL_USDHC
+ esdhc_setbits32(&regs->sysctl, SYSCTL_PEREN | SYSCTL_HCKEN
+ | SYSCTL_IPGEN | SYSCTL_CKEN);
+ /* Clearing tuning bits in case ROM has set it already */
+ esdhc_write32(&regs->mixctrl, 0);
+ esdhc_write32(&regs->autoc12err, 0);
+ esdhc_write32(&regs->clktunectrlstatus, 0);
+#else
+ esdhc_setbits32(&regs->vendorspec, VENDORSPEC_PEREN |
+ VENDORSPEC_HCKEN | VENDORSPEC_IPGEN | VENDORSPEC_CKEN);
+#endif
+
+ if (priv->vs18_enable)
+ esdhc_setbits32(&regs->vendorspec, ESDHC_VENDORSPEC_VSELECT);
+
+ writel(SDHCI_IRQ_EN_BITS, &regs->irqstaten);
+ cfg = &plat->cfg;
+#ifndef CONFIG_DM_MMC
+ memset(cfg, '\0', sizeof(*cfg));
+#endif
+
+ voltage_caps = 0;
+ caps = esdhc_read32(&regs->hostcapblt);
+
+#ifdef CONFIG_MCF5441x
+ /*
+ * MCF5441x RM declares in more points that sdhc clock speed must
+ * never exceed 25 Mhz. From this, the HS bit needs to be disabled
+ * from host capabilities.
+ */
+ caps &= ~ESDHC_HOSTCAPBLT_HSS;
+#endif
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC135
+ caps = caps & ~(ESDHC_HOSTCAPBLT_SRS |
+ ESDHC_HOSTCAPBLT_VS18 | ESDHC_HOSTCAPBLT_VS30);
+#endif
+
+/* T4240 host controller capabilities register should have VS33 bit */
+#ifdef CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33
+ caps = caps | ESDHC_HOSTCAPBLT_VS33;
+#endif
+
+ if (caps & ESDHC_HOSTCAPBLT_VS18)
+ voltage_caps |= MMC_VDD_165_195;
+ if (caps & ESDHC_HOSTCAPBLT_VS30)
+ voltage_caps |= MMC_VDD_29_30 | MMC_VDD_30_31;
+ if (caps & ESDHC_HOSTCAPBLT_VS33)
+ voltage_caps |= MMC_VDD_32_33 | MMC_VDD_33_34;
+
+ cfg->name = "FSL_SDHC";
+#if !CONFIG_IS_ENABLED(DM_MMC)
+ cfg->ops = &esdhc_ops;
+#endif
+#ifdef CONFIG_SYS_SD_VOLTAGE
+ cfg->voltages = CONFIG_SYS_SD_VOLTAGE;
+#else
+ cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
+#endif
+ if ((cfg->voltages & voltage_caps) == 0) {
+ printf("voltage not supported by controller\n");
+ return -1;
+ }
+
+ if (priv->bus_width == 8)
+ cfg->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT;
+ else if (priv->bus_width == 4)
+ cfg->host_caps = MMC_MODE_4BIT;
+
+ cfg->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT;
+#ifdef CONFIG_SYS_FSL_ESDHC_HAS_DDR_MODE
+ cfg->host_caps |= MMC_MODE_DDR_52MHz;
+#endif
+
+ if (priv->bus_width > 0) {
+ if (priv->bus_width < 8)
+ cfg->host_caps &= ~MMC_MODE_8BIT;
+ if (priv->bus_width < 4)
+ cfg->host_caps &= ~MMC_MODE_4BIT;
+ }
+
+ if (caps & ESDHC_HOSTCAPBLT_HSS)
+ cfg->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
+
+#ifdef CONFIG_ESDHC_DETECT_8_BIT_QUIRK
+ if (CONFIG_ESDHC_DETECT_8_BIT_QUIRK)
+ cfg->host_caps &= ~MMC_MODE_8BIT;
+#endif
+
+ cfg->host_caps |= priv->caps;
+
+ cfg->f_min = 400000;
+ cfg->f_max = min(priv->sdhc_clk, (u32)200000000);
+
+ cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
+
+ writel(0, &regs->dllctrl);
+ if (priv->flags & ESDHC_FLAG_USDHC) {
+ if (priv->flags & ESDHC_FLAG_STD_TUNING) {
+ u32 val = readl(&regs->tuning_ctrl);
+
+ val |= ESDHC_STD_TUNING_EN;
+ val &= ~ESDHC_TUNING_START_TAP_MASK;
+ val |= priv->tuning_start_tap;
+ val &= ~ESDHC_TUNING_STEP_MASK;
+ val |= (priv->tuning_step) << ESDHC_TUNING_STEP_SHIFT;
+ writel(val, &regs->tuning_ctrl);
+ }
+ }
+
+ return 0;
+}
+
+#if !CONFIG_IS_ENABLED(DM_MMC)
+static int fsl_esdhc_cfg_to_priv(struct fsl_esdhc_cfg *cfg,
+ struct fsl_esdhc_priv *priv)
+{
+ if (!cfg || !priv)
+ return -EINVAL;
+
+ priv->esdhc_regs = (struct fsl_esdhc *)(unsigned long)(cfg->esdhc_base);
+ priv->bus_width = cfg->max_bus_width;
+ priv->sdhc_clk = cfg->sdhc_clk;
+ priv->wp_enable = cfg->wp_enable;
+ priv->vs18_enable = cfg->vs18_enable;
+
+ return 0;
+};
+
+int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg)
+{
+ struct fsl_esdhc_plat *plat;
+ struct fsl_esdhc_priv *priv;
+ struct mmc *mmc;
+ int ret;
+
+ if (!cfg)
+ return -EINVAL;
+
+ priv = calloc(sizeof(struct fsl_esdhc_priv), 1);
+ if (!priv)
+ return -ENOMEM;
+ plat = calloc(sizeof(struct fsl_esdhc_plat), 1);
+ if (!plat) {
+ free(priv);
+ return -ENOMEM;
+ }
+
+ ret = fsl_esdhc_cfg_to_priv(cfg, priv);
+ if (ret) {
+ debug("%s xlate failure\n", __func__);
+ free(plat);
+ free(priv);
+ return ret;
+ }
+
+ ret = fsl_esdhc_init(priv, plat);
+ if (ret) {
+ debug("%s init failure\n", __func__);
+ free(plat);
+ free(priv);
+ return ret;
+ }
+
+ mmc = mmc_create(&plat->cfg, priv);
+ if (!mmc)
+ return -EIO;
+
+ priv->mmc = mmc;
+
+ return 0;
+}
+
+int fsl_esdhc_mmc_init(bd_t *bis)
+{
+ struct fsl_esdhc_cfg *cfg;
+
+ cfg = calloc(sizeof(struct fsl_esdhc_cfg), 1);
+ cfg->esdhc_base = CONFIG_SYS_FSL_ESDHC_ADDR;
+ cfg->sdhc_clk = gd->arch.sdhc_clk;
+ return fsl_esdhc_initialize(bis, cfg);
+}
+#endif
+
+#ifdef CONFIG_OF_LIBFDT
+__weak int esdhc_status_fixup(void *blob, const char *compat)
+{
+#ifdef CONFIG_FSL_ESDHC_PIN_MUX
+ if (!hwconfig("esdhc")) {
+ do_fixup_by_compat(blob, compat, "status", "disabled",
+ sizeof("disabled"), 1);
+ return 1;
+ }
+#endif
+ return 0;
+}
+
+void fdt_fixup_esdhc(void *blob, bd_t *bd)
+{
+ const char *compat = "fsl,esdhc";
+
+ if (esdhc_status_fixup(blob, compat))
+ return;
+
+#ifdef CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK
+ do_fixup_by_compat_u32(blob, compat, "peripheral-frequency",
+ gd->arch.sdhc_clk, 1);
+#else
+ do_fixup_by_compat_u32(blob, compat, "clock-frequency",
+ gd->arch.sdhc_clk, 1);
+#endif
+}
+#endif
+
+#if CONFIG_IS_ENABLED(DM_MMC)
+#include <asm/arch/clock.h>
+__weak void init_clk_usdhc(u32 index)
+{
+}
+
+static int fsl_esdhc_probe(struct udevice *dev)
+{
+ struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
+ struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
+ struct fsl_esdhc_priv *priv = dev_get_priv(dev);
+ const void *fdt = gd->fdt_blob;
+ int node = dev_of_offset(dev);
+ struct esdhc_soc_data *data =
+ (struct esdhc_soc_data *)dev_get_driver_data(dev);
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
+ struct udevice *vqmmc_dev;
+#endif
+ fdt_addr_t addr;
+ unsigned int val;
+ struct mmc *mmc;
+#if !CONFIG_IS_ENABLED(BLK)
+ struct blk_desc *bdesc;
+#endif
+ int ret;
+
+ addr = dev_read_addr(dev);
+ if (addr == FDT_ADDR_T_NONE)
+ return -EINVAL;
+ priv->esdhc_regs = (struct fsl_esdhc *)addr;
+ priv->dev = dev;
+ priv->mode = -1;
+ if (data) {
+ priv->flags = data->flags;
+ priv->caps = data->caps;
+ }
+
+ val = dev_read_u32_default(dev, "bus-width", -1);
+ if (val == 8)
+ priv->bus_width = 8;
+ else if (val == 4)
+ priv->bus_width = 4;
+ else
+ priv->bus_width = 1;
+
+ val = fdtdec_get_int(fdt, node, "fsl,tuning-step", 1);
+ priv->tuning_step = val;
+ val = fdtdec_get_int(fdt, node, "fsl,tuning-start-tap",
+ ESDHC_TUNING_START_TAP_DEFAULT);
+ priv->tuning_start_tap = val;
+ val = fdtdec_get_int(fdt, node, "fsl,strobe-dll-delay-target",
+ ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_DEFAULT);
+ priv->strobe_dll_delay_target = val;
+
+ if (dev_read_bool(dev, "non-removable")) {
+ priv->non_removable = 1;
+ } else {
+ priv->non_removable = 0;
+#ifdef CONFIG_DM_GPIO
+ gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio,
+ GPIOD_IS_IN);
+#endif
+ }
+
+ if (dev_read_prop(dev, "fsl,wp-controller", NULL)) {
+ priv->wp_enable = 1;
+ } else {
+ priv->wp_enable = 0;
+#ifdef CONFIG_DM_GPIO
+ gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio,
+ GPIOD_IS_IN);
+#endif
+ }
+
+ priv->vs18_enable = 0;
+
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
+ /*
+ * If emmc I/O has a fixed voltage at 1.8V, this must be provided,
+ * otherwise, emmc will work abnormally.
+ */
+ ret = device_get_supply_regulator(dev, "vqmmc-supply", &vqmmc_dev);
+ if (ret) {
+ dev_dbg(dev, "no vqmmc-supply\n");
+ } else {
+ ret = regulator_set_enable(vqmmc_dev, true);
+ if (ret) {
+ dev_err(dev, "fail to enable vqmmc-supply\n");
+ return ret;
+ }
+
+ if (regulator_get_value(vqmmc_dev) == 1800000)
+ priv->vs18_enable = 1;
+ }
+#endif
+
+ if (fdt_get_property(fdt, node, "no-1-8-v", NULL))
+ priv->caps &= ~(UHS_CAPS | MMC_MODE_HS200 | MMC_MODE_HS400);
+
+ /*
+ * TODO:
+ * Because lack of clk driver, if SDHC clk is not enabled,
+ * need to enable it first before this driver is invoked.
+ *
+ * we use MXC_ESDHC_CLK to get clk freq.
+ * If one would like to make this function work,
+ * the aliases should be provided in dts as this:
+ *
+ * aliases {
+ * mmc0 = &usdhc1;
+ * mmc1 = &usdhc2;
+ * mmc2 = &usdhc3;
+ * mmc3 = &usdhc4;
+ * };
+ * Then if your board only supports mmc2 and mmc3, but we can
+ * correctly get the seq as 2 and 3, then let mxc_get_clock
+ * work as expected.
+ */
+
+ init_clk_usdhc(dev->seq);
+
+ if (IS_ENABLED(CONFIG_CLK)) {
+ /* Assigned clock already set clock */
+ ret = clk_get_by_name(dev, "per", &priv->per_clk);
+ if (ret) {
+ printf("Failed to get per_clk\n");
+ return ret;
+ }
+ ret = clk_enable(&priv->per_clk);
+ if (ret) {
+ printf("Failed to enable per_clk\n");
+ return ret;
+ }
+
+ priv->sdhc_clk = clk_get_rate(&priv->per_clk);
+ } else {
+ priv->sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK + dev->seq);
+ if (priv->sdhc_clk <= 0) {
+ dev_err(dev, "Unable to get clk for %s\n", dev->name);
+ return -EINVAL;
+ }
+ }
+
+ ret = fsl_esdhc_init(priv, plat);
+ if (ret) {
+ dev_err(dev, "fsl_esdhc_init failure\n");
+ return ret;
+ }
+
+ mmc = &plat->mmc;
+ mmc->cfg = &plat->cfg;
+ mmc->dev = dev;
+#if !CONFIG_IS_ENABLED(BLK)
+ mmc->priv = priv;
+
+ /* Setup dsr related values */
+ mmc->dsr_imp = 0;
+ mmc->dsr = ESDHC_DRIVER_STAGE_VALUE;
+ /* Setup the universal parts of the block interface just once */
+ bdesc = mmc_get_blk_desc(mmc);
+ bdesc->if_type = IF_TYPE_MMC;
+ bdesc->removable = 1;
+ bdesc->devnum = mmc_get_next_devnum();
+ bdesc->block_read = mmc_bread;
+ bdesc->block_write = mmc_bwrite;
+ bdesc->block_erase = mmc_berase;
+
+ /* setup initial part type */
+ bdesc->part_type = mmc->cfg->part_type;
+ mmc_list_add(mmc);
+#endif
+
+ upriv->mmc = mmc;
+
+ return esdhc_init_common(priv, mmc);
+}
+
+#if CONFIG_IS_ENABLED(DM_MMC)
+static int fsl_esdhc_get_cd(struct udevice *dev)
+{
+ struct fsl_esdhc_priv *priv = dev_get_priv(dev);
+
+ return esdhc_getcd_common(priv);
+}
+
+static int fsl_esdhc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
+ struct mmc_data *data)
+{
+ struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
+ struct fsl_esdhc_priv *priv = dev_get_priv(dev);
+
+ return esdhc_send_cmd_common(priv, &plat->mmc, cmd, data);
+}
+
+static int fsl_esdhc_set_ios(struct udevice *dev)
+{
+ struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
+ struct fsl_esdhc_priv *priv = dev_get_priv(dev);
+
+ return esdhc_set_ios_common(priv, &plat->mmc);
+}
+
+static const struct dm_mmc_ops fsl_esdhc_ops = {
+ .get_cd = fsl_esdhc_get_cd,
+ .send_cmd = fsl_esdhc_send_cmd,
+ .set_ios = fsl_esdhc_set_ios,
+#ifdef MMC_SUPPORTS_TUNING
+ .execute_tuning = fsl_esdhc_execute_tuning,
+#endif
+};
+#endif
+
+static struct esdhc_soc_data usdhc_imx7d_data = {
+ .flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
+ | ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200
+ | ESDHC_FLAG_HS400,
+ .caps = UHS_CAPS | MMC_MODE_HS200 | MMC_MODE_DDR_52MHz |
+ MMC_MODE_HS_52MHz | MMC_MODE_HS,
+};
+
+static const struct udevice_id fsl_esdhc_ids[] = {
+ { .compatible = "fsl,imx53-esdhc", },
+ { .compatible = "fsl,imx6ul-usdhc", },
+ { .compatible = "fsl,imx6sx-usdhc", },
+ { .compatible = "fsl,imx6sl-usdhc", },
+ { .compatible = "fsl,imx6q-usdhc", },
+ { .compatible = "fsl,imx7d-usdhc", .data = (ulong)&usdhc_imx7d_data,},
+ { .compatible = "fsl,imx7ulp-usdhc", },
+ { .compatible = "fsl,esdhc", },
+ { /* sentinel */ }
+};
+
+#if CONFIG_IS_ENABLED(BLK)
+static int fsl_esdhc_bind(struct udevice *dev)
+{
+ struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
+
+ return mmc_bind(dev, &plat->mmc, &plat->cfg);
+}
+#endif
+
+U_BOOT_DRIVER(fsl_esdhc) = {
+ .name = "fsl-esdhc-mmc",
+ .id = UCLASS_MMC,
+ .of_match = fsl_esdhc_ids,
+ .ops = &fsl_esdhc_ops,
+#if CONFIG_IS_ENABLED(BLK)
+ .bind = fsl_esdhc_bind,
+#endif
+ .probe = fsl_esdhc_probe,
+ .platdata_auto_alloc_size = sizeof(struct fsl_esdhc_plat),
+ .priv_auto_alloc_size = sizeof(struct fsl_esdhc_priv),
+};
+#endif
diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c
index 3e6c494dc6..406bf0b362 100644
--- a/drivers/usb/dwc3/dwc3-generic.c
+++ b/drivers/usb/dwc3/dwc3-generic.c
@@ -337,7 +337,7 @@ static int dwc3_glue_remove(struct udevice *dev)
clk_release_bulk(&glue->clks);
- return dm_scan_fdt_dev(dev);
+ return 0;
}
static const struct udevice_id dwc3_glue_ids[] = {
@@ -350,7 +350,7 @@ static const struct udevice_id dwc3_glue_ids[] = {
U_BOOT_DRIVER(dwc3_generic_wrapper) = {
.name = "dwc3-generic-wrapper",
- .id = UCLASS_MISC,
+ .id = UCLASS_NOP,
.of_match = dwc3_glue_ids,
.bind = dwc3_glue_bind,
.probe = dwc3_glue_probe,
diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c
index 33abfeada0..e9e6ed596d 100644
--- a/drivers/usb/host/ehci-mx6.c
+++ b/drivers/usb/host/ehci-mx6.c
@@ -503,6 +503,42 @@ static int ehci_usb_ofdata_to_platdata(struct udevice *dev)
return 0;
}
+static int ehci_usb_bind(struct udevice *dev)
+{
+ /*
+ * TODO:
+ * This driver is only partly converted to DT probing and still uses
+ * a tremendous amount of hard-coded addresses. To make things worse,
+ * the driver depends on specific sequential indexing of controllers,
+ * from which it derives offsets in the PHY and ANATOP register sets.
+ *
+ * Here we attempt to calculate these indexes from DT information as
+ * well as we can. The USB controllers on all existing iMX6/iMX7 SoCs
+ * are placed next to each other, at addresses incremented by 0x200.
+ * Thus, the index is derived from the multiple of 0x200 offset from
+ * the first controller address.
+ *
+ * However, to complete conversion of this driver to DT probing, the
+ * following has to be done:
+ * - DM clock framework support for iMX must be implemented
+ * - usb_power_config() has to be converted to clock framework
+ * -> Thus, the ad-hoc "index" variable goes away.
+ * - USB PHY handling has to be factored out into separate driver
+ * -> Thus, the ad-hoc "index" variable goes away from the PHY
+ * code, the PHY driver must parse it's address from DT. This
+ * USB driver must find the PHY driver via DT phandle.
+ * -> usb_power_config() shall be moved to PHY driver
+ * With these changes in place, the ad-hoc indexing goes away and
+ * the driver is fully converted to DT probing.
+ */
+ fdt_size_t size;
+ fdt_addr_t addr = devfdt_get_addr_size_index(dev, 0, &size);
+
+ dev->req_seq = (addr - USB_BASE_ADDR) / size;
+
+ return 0;
+}
+
static int ehci_usb_probe(struct udevice *dev)
{
struct usb_platdata *plat = dev_get_platdata(dev);
@@ -564,6 +600,7 @@ U_BOOT_DRIVER(usb_mx6) = {
.id = UCLASS_USB,
.of_match = mx6_usb_ids,
.ofdata_to_platdata = ehci_usb_ofdata_to_platdata,
+ .bind = ehci_usb_bind,
.probe = ehci_usb_probe,
.remove = ehci_deregister,
.ops = &ehci_usb_ops,
diff --git a/drivers/video/pwm_backlight.c b/drivers/video/pwm_backlight.c
index a587977c22..ad20bf2441 100644
--- a/drivers/video/pwm_backlight.c
+++ b/drivers/video/pwm_backlight.c
@@ -67,6 +67,9 @@ static int set_pwm(struct pwm_backlight_priv *priv)
return log_ret(ret);
ret = pwm_set_invert(priv->pwm, priv->channel, priv->polarity);
+ if (ret == -ENOSYS && !priv->polarity)
+ ret = 0;
+
return log_ret(ret);
}
generated by cgit (git 2.34.1) at 2024-12-30 22:00:02 +0000