#include <config.h>
#include <common.h>
#include <malloc.h>
+#include <memalign.h>
#include <mmc.h>
#include <part.h>
#include <i2c.h>
-#include <twl4030.h>
-#include <twl6030.h>
+#if defined(CONFIG_OMAP54XX) || defined(CONFIG_OMAP44XX)
#include <palmas.h>
+#endif
#include <asm/io.h>
#include <asm/arch/mmc_host_def.h>
+#ifdef CONFIG_OMAP54XX
+#include <asm/arch/mux_dra7xx.h>
+#include <asm/arch/dra7xx_iodelay.h>
+#endif
#if !defined(CONFIG_SOC_KEYSTONE)
#include <asm/gpio.h>
#include <asm/arch/sys_proto.h>
#endif
+#ifdef CONFIG_MMC_OMAP36XX_PINS
+#include <asm/arch/mux.h>
+#endif
#include <dm.h>
+#include <power/regulator.h>
DECLARE_GLOBAL_DATA_PTR;
#define SYSCTL_SRC (1 << 25)
#define SYSCTL_SRD (1 << 26)
+#ifdef CONFIG_IODELAY_RECALIBRATION
+struct omap_hsmmc_pinctrl_state {
+ struct pad_conf_entry *padconf;
+ int npads;
+ struct iodelay_cfg_entry *iodelay;
+ int niodelays;
+};
+#endif
+
struct omap_hsmmc_data {
struct hsmmc *base_addr;
+#if !CONFIG_IS_ENABLED(DM_MMC)
struct mmc_config cfg;
+#endif
+ uint bus_width;
+ uint clock;
#ifdef OMAP_HSMMC_USE_GPIO
-#ifdef CONFIG_DM_MMC
+#if CONFIG_IS_ENABLED(DM_MMC)
struct gpio_desc cd_gpio; /* Change Detect GPIO */
struct gpio_desc wp_gpio; /* Write Protect GPIO */
bool cd_inverted;
int wp_gpio;
#endif
#endif
+#if CONFIG_IS_ENABLED(DM_MMC)
+ uint iov;
+ enum bus_mode mode;
+#endif
+ u8 controller_flags;
+#ifndef CONFIG_OMAP34XX
+ struct omap_hsmmc_adma_desc *adma_desc_table;
+ uint desc_slot;
+#endif
+ const char *hw_rev;
+#ifdef CONFIG_IODELAY_RECALIBRATION
+ struct omap_hsmmc_pinctrl_state *default_pinctrl_state;
+ struct omap_hsmmc_pinctrl_state *hs_pinctrl_state;
+ struct omap_hsmmc_pinctrl_state *hs200_1_8v_pinctrl_state;
+ struct omap_hsmmc_pinctrl_state *ddr_1_8v_pinctrl_state;
+ struct omap_hsmmc_pinctrl_state *sdr12_pinctrl_state;
+ struct omap_hsmmc_pinctrl_state *sdr25_pinctrl_state;
+ struct omap_hsmmc_pinctrl_state *ddr50_pinctrl_state;
+ struct omap_hsmmc_pinctrl_state *sdr50_pinctrl_state;
+ struct omap_hsmmc_pinctrl_state *sdr104_pinctrl_state;
+#endif
+};
+
+struct omap_mmc_of_data {
+ u8 controller_flags;
+};
+
+#ifndef CONFIG_OMAP34XX
+struct omap_hsmmc_adma_desc {
+ u8 attr;
+ u8 reserved;
+ u16 len;
+ u32 addr;
};
+#define ADMA_MAX_LEN 63488
+
+/* 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)
+#endif
+
/* If we fail after 1 second wait, something is really bad */
#define MAX_RETRY_MS 1000
+#define MMC_TIMEOUT_MS 20
+
+/* DMA transfers can take a long time if a lot a data is transferred.
+ * The timeout must take in account the amount of data. Let's assume
+ * that the time will never exceed 333 ms per MB (in other word we assume
+ * that the bandwidth is always above 3MB/s).
+ */
+#define DMA_TIMEOUT_PER_MB 333
+#define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0)
+#define OMAP_HSMMC_NO_1_8_V BIT(1)
+#define OMAP_HSMMC_USE_ADMA BIT(2)
+#define OMAP_HSMMC_REQUIRE_IODELAY BIT(3)
static int mmc_read_data(struct hsmmc *mmc_base, char *buf, unsigned int size);
static int mmc_write_data(struct hsmmc *mmc_base, const char *buf,
unsigned int siz);
+static void omap_hsmmc_start_clock(struct hsmmc *mmc_base);
+static void omap_hsmmc_stop_clock(struct hsmmc *mmc_base);
+static void mmc_reset_controller_fsm(struct hsmmc *mmc_base, u32 bit);
+
+static inline struct omap_hsmmc_data *omap_hsmmc_get_data(struct mmc *mmc)
+{
+#if CONFIG_IS_ENABLED(DM_MMC)
+ return dev_get_priv(mmc->dev);
+#else
+ return (struct omap_hsmmc_data *)mmc->priv;
+#endif
+}
+static inline struct mmc_config *omap_hsmmc_get_cfg(struct mmc *mmc)
+{
+#if CONFIG_IS_ENABLED(DM_MMC)
+ struct omap_hsmmc_plat *plat = dev_get_platdata(mmc->dev);
+ return &plat->cfg;
+#else
+ return &((struct omap_hsmmc_data *)mmc->priv)->cfg;
+#endif
+}
-#if defined(OMAP_HSMMC_USE_GPIO) && !defined(CONFIG_DM_MMC)
+#if defined(OMAP_HSMMC_USE_GPIO) && !CONFIG_IS_ENABLED(DM_MMC)
static int omap_mmc_setup_gpio_in(int gpio, const char *label)
{
int ret;
}
#endif
-#if defined(CONFIG_OMAP44XX)
-static void omap4_vmmc_pbias_config(struct mmc *mmc)
-{
- u32 value = 0;
-
- value = readl((*ctrl)->control_pbiaslite);
- value &= ~(MMC1_PBIASLITE_PWRDNZ | MMC1_PWRDNZ);
- writel(value, (*ctrl)->control_pbiaslite);
- value = readl((*ctrl)->control_pbiaslite);
- value |= MMC1_PBIASLITE_VMODE | MMC1_PBIASLITE_PWRDNZ | MMC1_PWRDNZ;
- writel(value, (*ctrl)->control_pbiaslite);
-}
-#endif
-
-#if defined(CONFIG_OMAP54XX) && defined(CONFIG_PALMAS_POWER)
-static void omap5_pbias_config(struct mmc *mmc)
-{
- u32 value = 0;
-
- value = readl((*ctrl)->control_pbias);
- value &= ~SDCARD_PWRDNZ;
- writel(value, (*ctrl)->control_pbias);
- udelay(10); /* wait 10 us */
- value &= ~SDCARD_BIAS_PWRDNZ;
- writel(value, (*ctrl)->control_pbias);
-
- palmas_mmc1_poweron_ldo();
-
- value = readl((*ctrl)->control_pbias);
- value |= SDCARD_BIAS_PWRDNZ;
- writel(value, (*ctrl)->control_pbias);
- udelay(150); /* wait 150 us */
- value |= SDCARD_PWRDNZ;
- writel(value, (*ctrl)->control_pbias);
- udelay(150); /* wait 150 us */
-}
-#endif
-
static unsigned char mmc_board_init(struct mmc *mmc)
{
#if defined(CONFIG_OMAP34XX)
+ struct mmc_config *cfg = omap_hsmmc_get_cfg(mmc);
t2_t *t2_base = (t2_t *)T2_BASE;
struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
u32 pbias_lite;
+#ifdef CONFIG_MMC_OMAP36XX_PINS
+ u32 wkup_ctrl = readl(OMAP34XX_CTRL_WKUP_CTRL);
+#endif
pbias_lite = readl(&t2_base->pbias_lite);
pbias_lite &= ~(PBIASLITEPWRDNZ1 | PBIASLITEPWRDNZ0);
#ifdef CONFIG_TARGET_OMAP3_CAIRO
/* for cairo board, we need to set up 1.8 Volt bias level on MMC1 */
pbias_lite &= ~PBIASLITEVMODE0;
+#endif
+#ifdef CONFIG_MMC_OMAP36XX_PINS
+ if (get_cpu_family() == CPU_OMAP36XX) {
+ /* Disable extended drain IO before changing PBIAS */
+ wkup_ctrl &= ~OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ;
+ writel(wkup_ctrl, OMAP34XX_CTRL_WKUP_CTRL);
+ }
#endif
writel(pbias_lite, &t2_base->pbias_lite);
PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
&t2_base->pbias_lite);
+#ifdef CONFIG_MMC_OMAP36XX_PINS
+ if (get_cpu_family() == CPU_OMAP36XX)
+ /* Enable extended drain IO after changing PBIAS */
+ writel(wkup_ctrl |
+ OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ,
+ OMAP34XX_CTRL_WKUP_CTRL);
+#endif
writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
&t2_base->devconf0);
&t2_base->devconf1);
/* Change from default of 52MHz to 26MHz if necessary */
- if (!(mmc->cfg->host_caps & MMC_MODE_HS_52MHz))
+ if (!(cfg->host_caps & MMC_MODE_HS_52MHz))
writel(readl(&t2_base->ctl_prog_io1) & ~CTLPROGIO1SPEEDCTRL,
&t2_base->ctl_prog_io1);
&prcm_base->iclken1_core);
#endif
-#if defined(CONFIG_OMAP44XX)
+#if defined(CONFIG_OMAP54XX) || defined(CONFIG_OMAP44XX)
/* PBIAS config needed for MMC1 only */
- if (mmc->block_dev.devnum == 0)
- omap4_vmmc_pbias_config(mmc);
-#endif
-#if defined(CONFIG_OMAP54XX) && defined(CONFIG_PALMAS_POWER)
- if (mmc->block_dev.devnum == 0)
- omap5_pbias_config(mmc);
+ if (mmc_get_blk_desc(mmc)->devnum == 0)
+ vmmc_pbias_config(LDO_VOLT_3V0);
#endif
return 0;
writel(readl(&mmc_base->con) & ~INIT_INITSTREAM, &mmc_base->con);
}
+#if CONFIG_IS_ENABLED(DM_MMC)
+#ifdef CONFIG_IODELAY_RECALIBRATION
+static void omap_hsmmc_io_recalibrate(struct mmc *mmc)
+{
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+ struct omap_hsmmc_pinctrl_state *pinctrl_state;
+
+ switch (priv->mode) {
+ case MMC_HS_200:
+ pinctrl_state = priv->hs200_1_8v_pinctrl_state;
+ break;
+ case UHS_SDR104:
+ pinctrl_state = priv->sdr104_pinctrl_state;
+ break;
+ case UHS_SDR50:
+ pinctrl_state = priv->sdr50_pinctrl_state;
+ break;
+ case UHS_DDR50:
+ pinctrl_state = priv->ddr50_pinctrl_state;
+ break;
+ case UHS_SDR25:
+ pinctrl_state = priv->sdr25_pinctrl_state;
+ break;
+ case UHS_SDR12:
+ pinctrl_state = priv->sdr12_pinctrl_state;
+ break;
+ case SD_HS:
+ case MMC_HS:
+ case MMC_HS_52:
+ pinctrl_state = priv->hs_pinctrl_state;
+ break;
+ case MMC_DDR_52:
+ pinctrl_state = priv->ddr_1_8v_pinctrl_state;
+ default:
+ pinctrl_state = priv->default_pinctrl_state;
+ break;
+ }
+
+ if (!pinctrl_state)
+ pinctrl_state = priv->default_pinctrl_state;
+
+ if (priv->controller_flags & OMAP_HSMMC_REQUIRE_IODELAY) {
+ if (pinctrl_state->iodelay)
+ late_recalibrate_iodelay(pinctrl_state->padconf,
+ pinctrl_state->npads,
+ pinctrl_state->iodelay,
+ pinctrl_state->niodelays);
+ else
+ do_set_mux32((*ctrl)->control_padconf_core_base,
+ pinctrl_state->padconf,
+ pinctrl_state->npads);
+ }
+}
+#endif
+static void omap_hsmmc_set_timing(struct mmc *mmc)
+{
+ u32 val;
+ struct hsmmc *mmc_base;
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+
+ mmc_base = priv->base_addr;
+
+ omap_hsmmc_stop_clock(mmc_base);
+ val = readl(&mmc_base->ac12);
+ val &= ~AC12_UHSMC_MASK;
+ priv->mode = mmc->selected_mode;
+
+ if (mmc_is_mode_ddr(priv->mode))
+ writel(readl(&mmc_base->con) | DDR, &mmc_base->con);
+ else
+ writel(readl(&mmc_base->con) & ~DDR, &mmc_base->con);
+
+ switch (priv->mode) {
+ case MMC_HS_200:
+ case UHS_SDR104:
+ val |= AC12_UHSMC_SDR104;
+ break;
+ case UHS_SDR50:
+ val |= AC12_UHSMC_SDR50;
+ break;
+ case MMC_DDR_52:
+ case UHS_DDR50:
+ val |= AC12_UHSMC_DDR50;
+ break;
+ case SD_HS:
+ case MMC_HS_52:
+ case UHS_SDR25:
+ val |= AC12_UHSMC_SDR25;
+ break;
+ case MMC_LEGACY:
+ case MMC_HS:
+ case SD_LEGACY:
+ case UHS_SDR12:
+ val |= AC12_UHSMC_SDR12;
+ break;
+ default:
+ val |= AC12_UHSMC_RES;
+ break;
+ }
+ writel(val, &mmc_base->ac12);
+
+#ifdef CONFIG_IODELAY_RECALIBRATION
+ omap_hsmmc_io_recalibrate(mmc);
+#endif
+ omap_hsmmc_start_clock(mmc_base);
+}
+
+static void omap_hsmmc_conf_bus_power(struct mmc *mmc)
+{
+ struct hsmmc *mmc_base;
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+ u32 val;
+
+ mmc_base = priv->base_addr;
+
+ val = readl(&mmc_base->hctl) & ~SDVS_MASK;
+
+ switch (priv->iov) {
+ case IOV_3V3:
+ val |= SDVS_3V3;
+ break;
+ case IOV_3V0:
+ val |= SDVS_3V0;
+ break;
+ case IOV_1V8:
+ val |= SDVS_1V8;
+ break;
+ }
+
+ writel(val, &mmc_base->hctl);
+}
+
+static void omap_hsmmc_set_capabilities(struct mmc *mmc)
+{
+ struct hsmmc *mmc_base;
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+ u32 val;
+
+ mmc_base = priv->base_addr;
+ val = readl(&mmc_base->capa);
+
+ if (priv->controller_flags & OMAP_HSMMC_SUPPORTS_DUAL_VOLT) {
+ val |= (VS30_3V0SUP | VS18_1V8SUP);
+ priv->iov = IOV_3V0;
+ } else if (priv->controller_flags & OMAP_HSMMC_NO_1_8_V) {
+ val |= VS30_3V0SUP;
+ val &= ~VS18_1V8SUP;
+ priv->iov = IOV_3V0;
+ } else {
+ val |= VS18_1V8SUP;
+ val &= ~VS30_3V0SUP;
+ priv->iov = IOV_1V8;
+ }
+
+ writel(val, &mmc_base->capa);
+}
+
+#ifdef MMC_SUPPORTS_TUNING
+static void omap_hsmmc_disable_tuning(struct mmc *mmc)
+{
+ struct hsmmc *mmc_base;
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+ u32 val;
+
+ mmc_base = priv->base_addr;
+ val = readl(&mmc_base->ac12);
+ val &= ~(AC12_SCLK_SEL);
+ writel(val, &mmc_base->ac12);
+
+ val = readl(&mmc_base->dll);
+ val &= ~(DLL_FORCE_VALUE | DLL_SWT);
+ writel(val, &mmc_base->dll);
+}
+
+static void omap_hsmmc_set_dll(struct mmc *mmc, int count)
+{
+ int i;
+ struct hsmmc *mmc_base;
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+ u32 val;
+
+ mmc_base = priv->base_addr;
+ val = readl(&mmc_base->dll);
+ val |= DLL_FORCE_VALUE;
+ val &= ~(DLL_FORCE_SR_C_MASK << DLL_FORCE_SR_C_SHIFT);
+ val |= (count << DLL_FORCE_SR_C_SHIFT);
+ writel(val, &mmc_base->dll);
+
+ val |= DLL_CALIB;
+ writel(val, &mmc_base->dll);
+ for (i = 0; i < 1000; i++) {
+ if (readl(&mmc_base->dll) & DLL_CALIB)
+ break;
+ }
+ val &= ~DLL_CALIB;
+ writel(val, &mmc_base->dll);
+}
+
+static int omap_hsmmc_execute_tuning(struct udevice *dev, uint opcode)
+{
+ struct omap_hsmmc_data *priv = dev_get_priv(dev);
+ struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
+ struct mmc *mmc = upriv->mmc;
+ struct hsmmc *mmc_base;
+ u32 val;
+ u8 cur_match, prev_match = 0;
+ int ret;
+ u32 phase_delay = 0;
+ u32 start_window = 0, max_window = 0;
+ u32 length = 0, max_len = 0;
+
+ mmc_base = priv->base_addr;
+ val = readl(&mmc_base->capa2);
+
+ /* clock tuning is not needed for upto 52MHz */
+ if (!((mmc->selected_mode == MMC_HS_200) ||
+ (mmc->selected_mode == UHS_SDR104) ||
+ ((mmc->selected_mode == UHS_SDR50) && (val & CAPA2_TSDR50))))
+ return 0;
+
+ val = readl(&mmc_base->dll);
+ val |= DLL_SWT;
+ writel(val, &mmc_base->dll);
+ while (phase_delay <= MAX_PHASE_DELAY) {
+ omap_hsmmc_set_dll(mmc, phase_delay);
+
+ cur_match = !mmc_send_tuning(mmc, opcode, NULL);
+
+ if (cur_match) {
+ if (prev_match) {
+ length++;
+ } else {
+ start_window = phase_delay;
+ length = 1;
+ }
+ }
+
+ if (length > max_len) {
+ max_window = start_window;
+ max_len = length;
+ }
+
+ prev_match = cur_match;
+ phase_delay += 4;
+ }
+
+ if (!max_len) {
+ ret = -EIO;
+ goto tuning_error;
+ }
+
+ val = readl(&mmc_base->ac12);
+ if (!(val & AC12_SCLK_SEL)) {
+ ret = -EIO;
+ goto tuning_error;
+ }
+
+ phase_delay = max_window + 4 * ((3 * max_len) >> 2);
+ omap_hsmmc_set_dll(mmc, phase_delay);
+
+ mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD);
+ mmc_reset_controller_fsm(mmc_base, SYSCTL_SRC);
+
+ return 0;
+
+tuning_error:
+
+ omap_hsmmc_disable_tuning(mmc);
+ mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD);
+ mmc_reset_controller_fsm(mmc_base, SYSCTL_SRC);
+
+ return ret;
+}
+#endif
+
+static void omap_hsmmc_send_init_stream(struct udevice *dev)
+{
+ struct omap_hsmmc_data *priv = dev_get_priv(dev);
+ struct hsmmc *mmc_base = priv->base_addr;
+
+ mmc_init_stream(mmc_base);
+}
+#endif
+
+static void mmc_enable_irq(struct mmc *mmc, struct mmc_cmd *cmd)
+{
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+ struct hsmmc *mmc_base = priv->base_addr;
+ u32 irq_mask = INT_EN_MASK;
+
+ /*
+ * TODO: Errata i802 indicates only DCRC interrupts can occur during
+ * tuning procedure and DCRC should be disabled. But see occurences
+ * of DEB, CIE, CEB, CCRC interupts during tuning procedure. These
+ * interrupts occur along with BRR, so the data is actually in the
+ * buffer. It has to be debugged why these interrutps occur
+ */
+ if (cmd && mmc_is_tuning_cmd(cmd->cmdidx))
+ irq_mask &= ~(IE_DEB | IE_DCRC | IE_CIE | IE_CEB | IE_CCRC);
+
+ writel(irq_mask, &mmc_base->ie);
+}
static int omap_hsmmc_init_setup(struct mmc *mmc)
{
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
struct hsmmc *mmc_base;
unsigned int reg_val;
unsigned int dsor;
ulong start;
- mmc_base = ((struct omap_hsmmc_data *)mmc->priv)->base_addr;
+ mmc_base = priv->base_addr;
mmc_board_init(mmc);
writel(readl(&mmc_base->sysconfig) | MMC_SOFTRESET,
while ((readl(&mmc_base->sysstatus) & RESETDONE) == 0) {
if (get_timer(0) - start > MAX_RETRY_MS) {
printf("%s: timedout waiting for cc2!\n", __func__);
- return TIMEOUT;
+ return -ETIMEDOUT;
}
}
writel(readl(&mmc_base->sysctl) | SOFTRESETALL, &mmc_base->sysctl);
if (get_timer(0) - start > MAX_RETRY_MS) {
printf("%s: timedout waiting for softresetall!\n",
__func__);
- return TIMEOUT;
+ return -ETIMEDOUT;
}
}
+#ifndef CONFIG_OMAP34XX
+ reg_val = readl(&mmc_base->hl_hwinfo);
+ if (reg_val & MADMA_EN)
+ priv->controller_flags |= OMAP_HSMMC_USE_ADMA;
+#endif
+
+#if CONFIG_IS_ENABLED(DM_MMC)
+ omap_hsmmc_set_capabilities(mmc);
+ omap_hsmmc_conf_bus_power(mmc);
+#else
writel(DTW_1_BITMODE | SDBP_PWROFF | SDVS_3V0, &mmc_base->hctl);
writel(readl(&mmc_base->capa) | VS30_3V0SUP | VS18_1V8SUP,
&mmc_base->capa);
+#endif
reg_val = readl(&mmc_base->con) & RESERVED_MASK;
dsor = 240;
mmc_reg_out(&mmc_base->sysctl, (ICE_MASK | DTO_MASK | CEN_MASK),
- (ICE_STOP | DTO_15THDTO | CEN_DISABLE));
+ (ICE_STOP | DTO_15THDTO));
mmc_reg_out(&mmc_base->sysctl, ICE_MASK | CLKD_MASK,
(dsor << CLKD_OFFSET) | ICE_OSCILLATE);
start = get_timer(0);
while ((readl(&mmc_base->sysctl) & ICS_MASK) == ICS_NOTREADY) {
if (get_timer(0) - start > MAX_RETRY_MS) {
printf("%s: timedout waiting for ics!\n", __func__);
- return TIMEOUT;
+ return -ETIMEDOUT;
}
}
writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl);
writel(readl(&mmc_base->hctl) | SDBP_PWRON, &mmc_base->hctl);
- writel(IE_BADA | IE_CERR | IE_DEB | IE_DCRC | IE_DTO | IE_CIE |
- IE_CEB | IE_CCRC | IE_CTO | IE_BRR | IE_BWR | IE_TC | IE_CC,
- &mmc_base->ie);
+ mmc_enable_irq(mmc, NULL);
+#if !CONFIG_IS_ENABLED(DM_MMC)
mmc_init_stream(mmc_base);
+#endif
return 0;
}
if (!(readl(&mmc_base->sysctl) & bit)) {
start = get_timer(0);
while (!(readl(&mmc_base->sysctl) & bit)) {
- if (get_timer(0) - start > MAX_RETRY_MS)
+ if (get_timer(0) - start > MMC_TIMEOUT_MS)
return;
}
}
}
}
+#ifndef CONFIG_OMAP34XX
+static void omap_hsmmc_adma_desc(struct mmc *mmc, char *buf, u16 len, bool end)
+{
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+ struct omap_hsmmc_adma_desc *desc;
+ u8 attr;
+
+ desc = &priv->adma_desc_table[priv->desc_slot];
+
+ attr = ADMA_DESC_ATTR_VALID | ADMA_DESC_TRANSFER_DATA;
+ if (!end)
+ priv->desc_slot++;
+ else
+ attr |= ADMA_DESC_ATTR_END;
+
+ desc->len = len;
+ desc->addr = (u32)buf;
+ desc->reserved = 0;
+ desc->attr = attr;
+}
+
+static void omap_hsmmc_prepare_adma_table(struct mmc *mmc,
+ struct mmc_data *data)
+{
+ uint total_len = data->blocksize * data->blocks;
+ uint desc_count = DIV_ROUND_UP(total_len, ADMA_MAX_LEN);
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+ int i = desc_count;
+ char *buf;
+
+ priv->desc_slot = 0;
+ priv->adma_desc_table = (struct omap_hsmmc_adma_desc *)
+ memalign(ARCH_DMA_MINALIGN, desc_count *
+ sizeof(struct omap_hsmmc_adma_desc));
+
+ if (data->flags & MMC_DATA_READ)
+ buf = data->dest;
+ else
+ buf = (char *)data->src;
+
+ while (--i) {
+ omap_hsmmc_adma_desc(mmc, buf, ADMA_MAX_LEN, false);
+ buf += ADMA_MAX_LEN;
+ total_len -= ADMA_MAX_LEN;
+ }
+
+ omap_hsmmc_adma_desc(mmc, buf, total_len, true);
+
+ flush_dcache_range((long)priv->adma_desc_table,
+ (long)priv->adma_desc_table +
+ ROUND(desc_count *
+ sizeof(struct omap_hsmmc_adma_desc),
+ ARCH_DMA_MINALIGN));
+}
+
+static void omap_hsmmc_prepare_data(struct mmc *mmc, struct mmc_data *data)
+{
+ struct hsmmc *mmc_base;
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+ u32 val;
+ char *buf;
+
+ mmc_base = priv->base_addr;
+ omap_hsmmc_prepare_adma_table(mmc, data);
+
+ if (data->flags & MMC_DATA_READ)
+ buf = data->dest;
+ else
+ buf = (char *)data->src;
+
+ val = readl(&mmc_base->hctl);
+ val |= DMA_SELECT;
+ writel(val, &mmc_base->hctl);
+
+ val = readl(&mmc_base->con);
+ val |= DMA_MASTER;
+ writel(val, &mmc_base->con);
+
+ writel((u32)priv->adma_desc_table, &mmc_base->admasal);
+
+ flush_dcache_range((u32)buf,
+ (u32)buf +
+ ROUND(data->blocksize * data->blocks,
+ ARCH_DMA_MINALIGN));
+}
+
+static void omap_hsmmc_dma_cleanup(struct mmc *mmc)
+{
+ struct hsmmc *mmc_base;
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+ u32 val;
+
+ mmc_base = priv->base_addr;
+
+ val = readl(&mmc_base->con);
+ val &= ~DMA_MASTER;
+ writel(val, &mmc_base->con);
+
+ val = readl(&mmc_base->hctl);
+ val &= ~DMA_SELECT;
+ writel(val, &mmc_base->hctl);
+
+ kfree(priv->adma_desc_table);
+}
+#else
+#define omap_hsmmc_adma_desc
+#define omap_hsmmc_prepare_adma_table
+#define omap_hsmmc_prepare_data
+#define omap_hsmmc_dma_cleanup
+#endif
+
+#if !CONFIG_IS_ENABLED(DM_MMC)
static int omap_hsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
struct mmc_data *data)
{
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+#else
+static int omap_hsmmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
+ struct mmc_data *data)
+{
+ struct omap_hsmmc_data *priv = dev_get_priv(dev);
+ struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
+ struct mmc *mmc = upriv->mmc;
+#endif
struct hsmmc *mmc_base;
unsigned int flags, mmc_stat;
ulong start;
- mmc_base = ((struct omap_hsmmc_data *)mmc->priv)->base_addr;
+ mmc_base = priv->base_addr;
+
+ if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
+ return 0;
+
start = get_timer(0);
while ((readl(&mmc_base->pstate) & (DATI_MASK | CMDI_MASK)) != 0) {
if (get_timer(0) - start > MAX_RETRY_MS) {
printf("%s: timedout waiting on cmd inhibit to clear\n",
__func__);
- return TIMEOUT;
+ return -ETIMEDOUT;
}
}
writel(0xFFFFFFFF, &mmc_base->stat);
if (get_timer(0) - start > MAX_RETRY_MS) {
printf("%s: timedout waiting for STAT (%x) to clear\n",
__func__, readl(&mmc_base->stat));
- return TIMEOUT;
+ return -ETIMEDOUT;
}
}
/*
/* enable default flags */
flags = flags | (CMD_TYPE_NORMAL | CICE_NOCHECK | CCCE_NOCHECK |
- MSBS_SGLEBLK | ACEN_DISABLE | BCE_DISABLE | DE_DISABLE);
+ MSBS_SGLEBLK);
+ flags &= ~(ACEN_ENABLE | BCE_ENABLE | DE_ENABLE);
if (cmd->resp_type & MMC_RSP_CRC)
flags |= CCCE_CHECK;
if (data) {
if ((cmd->cmdidx == MMC_CMD_READ_MULTIPLE_BLOCK) ||
(cmd->cmdidx == MMC_CMD_WRITE_MULTIPLE_BLOCK)) {
- flags |= (MSBS_MULTIBLK | BCE_ENABLE);
+ flags |= (MSBS_MULTIBLK | BCE_ENABLE | ACEN_ENABLE);
data->blocksize = 512;
writel(data->blocksize | (data->blocks << 16),
&mmc_base->blk);
flags |= (DP_DATA | DDIR_READ);
else
flags |= (DP_DATA | DDIR_WRITE);
+
+#ifndef CONFIG_OMAP34XX
+ if ((priv->controller_flags & OMAP_HSMMC_USE_ADMA) &&
+ !mmc_is_tuning_cmd(cmd->cmdidx)) {
+ omap_hsmmc_prepare_data(mmc, data);
+ flags |= DE_ENABLE;
+ }
+#endif
}
+ mmc_enable_irq(mmc, cmd);
+
writel(cmd->cmdarg, &mmc_base->arg);
udelay(20); /* To fix "No status update" error on eMMC */
writel((cmd->cmdidx << 24) | flags, &mmc_base->cmd);
start = get_timer(0);
do {
mmc_stat = readl(&mmc_base->stat);
- if (get_timer(0) - start > MAX_RETRY_MS) {
+ if (get_timer(start) > MAX_RETRY_MS) {
printf("%s : timeout: No status update\n", __func__);
- return TIMEOUT;
+ return -ETIMEDOUT;
}
} while (!mmc_stat);
if ((mmc_stat & IE_CTO) != 0) {
mmc_reset_controller_fsm(mmc_base, SYSCTL_SRC);
- return TIMEOUT;
+ return -ETIMEDOUT;
} else if ((mmc_stat & ERRI_MASK) != 0)
return -1;
}
}
+#ifndef CONFIG_OMAP34XX
+ if ((priv->controller_flags & OMAP_HSMMC_USE_ADMA) && data &&
+ !mmc_is_tuning_cmd(cmd->cmdidx)) {
+ u32 sz_mb, timeout;
+
+ if (mmc_stat & IE_ADMAE) {
+ omap_hsmmc_dma_cleanup(mmc);
+ return -EIO;
+ }
+
+ sz_mb = DIV_ROUND_UP(data->blocksize * data->blocks, 1 << 20);
+ timeout = sz_mb * DMA_TIMEOUT_PER_MB;
+ if (timeout < MAX_RETRY_MS)
+ timeout = MAX_RETRY_MS;
+
+ start = get_timer(0);
+ do {
+ mmc_stat = readl(&mmc_base->stat);
+ if (mmc_stat & TC_MASK) {
+ writel(readl(&mmc_base->stat) | TC_MASK,
+ &mmc_base->stat);
+ break;
+ }
+ if (get_timer(start) > timeout) {
+ printf("%s : DMA timeout: No status update\n",
+ __func__);
+ return -ETIMEDOUT;
+ }
+ } while (1);
+
+ omap_hsmmc_dma_cleanup(mmc);
+ return 0;
+ }
+#endif
+
if (data && (data->flags & MMC_DATA_READ)) {
mmc_read_data(mmc_base, data->dest,
data->blocksize * data->blocks);
if (get_timer(0) - start > MAX_RETRY_MS) {
printf("%s: timedout waiting for status!\n",
__func__);
- return TIMEOUT;
+ return -ETIMEDOUT;
}
} while (mmc_stat == 0);
if (get_timer(0) - start > MAX_RETRY_MS) {
printf("%s: timedout waiting for status!\n",
__func__);
- return TIMEOUT;
+ return -ETIMEDOUT;
}
} while (mmc_stat == 0);
return 0;
}
-static void omap_hsmmc_set_ios(struct mmc *mmc)
+static void omap_hsmmc_stop_clock(struct hsmmc *mmc_base)
{
+ writel(readl(&mmc_base->sysctl) & ~CEN_ENABLE, &mmc_base->sysctl);
+}
+
+static void omap_hsmmc_start_clock(struct hsmmc *mmc_base)
+{
+ writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl);
+}
+
+static void omap_hsmmc_set_clock(struct mmc *mmc)
+{
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
struct hsmmc *mmc_base;
unsigned int dsor = 0;
ulong start;
- mmc_base = ((struct omap_hsmmc_data *)mmc->priv)->base_addr;
+ mmc_base = priv->base_addr;
+ omap_hsmmc_stop_clock(mmc_base);
+
+ /* TODO: Is setting DTO required here? */
+ mmc_reg_out(&mmc_base->sysctl, (ICE_MASK | DTO_MASK),
+ (ICE_STOP | DTO_15THDTO));
+
+ if (mmc->clock != 0) {
+ dsor = DIV_ROUND_UP(MMC_CLOCK_REFERENCE * 1000000, mmc->clock);
+ if (dsor > CLKD_MAX)
+ dsor = CLKD_MAX;
+ } else {
+ dsor = CLKD_MAX;
+ }
+
+ mmc_reg_out(&mmc_base->sysctl, ICE_MASK | CLKD_MASK,
+ (dsor << CLKD_OFFSET) | ICE_OSCILLATE);
+
+ start = get_timer(0);
+ while ((readl(&mmc_base->sysctl) & ICS_MASK) == ICS_NOTREADY) {
+ if (get_timer(0) - start > MAX_RETRY_MS) {
+ printf("%s: timedout waiting for ics!\n", __func__);
+ return;
+ }
+ }
+
+ priv->clock = MMC_CLOCK_REFERENCE * 1000000 / dsor;
+ mmc->clock = priv->clock;
+ omap_hsmmc_start_clock(mmc_base);
+}
+
+static void omap_hsmmc_set_bus_width(struct mmc *mmc)
+{
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+ struct hsmmc *mmc_base;
+
+ mmc_base = priv->base_addr;
/* configue bus width */
switch (mmc->bus_width) {
case 8:
break;
}
- /* configure clock with 96Mhz system clock.
- */
- if (mmc->clock != 0) {
- dsor = (MMC_CLOCK_REFERENCE * 1000000 / mmc->clock);
- if ((MMC_CLOCK_REFERENCE * 1000000) / dsor > mmc->clock)
- dsor++;
- }
+ priv->bus_width = mmc->bus_width;
+}
- mmc_reg_out(&mmc_base->sysctl, (ICE_MASK | DTO_MASK | CEN_MASK),
- (ICE_STOP | DTO_15THDTO | CEN_DISABLE));
+#if !CONFIG_IS_ENABLED(DM_MMC)
+static int omap_hsmmc_set_ios(struct mmc *mmc)
+{
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+#else
+static int omap_hsmmc_set_ios(struct udevice *dev)
+{
+ struct omap_hsmmc_data *priv = dev_get_priv(dev);
+ struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
+ struct mmc *mmc = upriv->mmc;
+#endif
- mmc_reg_out(&mmc_base->sysctl, ICE_MASK | CLKD_MASK,
- (dsor << CLKD_OFFSET) | ICE_OSCILLATE);
+ if (priv->bus_width != mmc->bus_width)
+ omap_hsmmc_set_bus_width(mmc);
- start = get_timer(0);
- while ((readl(&mmc_base->sysctl) & ICS_MASK) == ICS_NOTREADY) {
- if (get_timer(0) - start > MAX_RETRY_MS) {
- printf("%s: timedout waiting for ics!\n", __func__);
- return;
- }
- }
- writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl);
+ if (priv->clock != mmc->clock)
+ omap_hsmmc_set_clock(mmc);
+
+#if CONFIG_IS_ENABLED(DM_MMC)
+ if (priv->mode != mmc->selected_mode)
+ omap_hsmmc_set_timing(mmc);
+#endif
+ return 0;
}
#ifdef OMAP_HSMMC_USE_GPIO
-#ifdef CONFIG_DM_MMC
-static int omap_hsmmc_getcd(struct mmc *mmc)
+#if CONFIG_IS_ENABLED(DM_MMC)
+static int omap_hsmmc_getcd(struct udevice *dev)
{
- struct omap_hsmmc_data *priv = mmc->priv;
+ struct omap_hsmmc_data *priv = dev_get_priv(dev);
int value;
value = dm_gpio_get_value(&priv->cd_gpio);
return value;
}
-static int omap_hsmmc_getwp(struct mmc *mmc)
+static int omap_hsmmc_getwp(struct udevice *dev)
{
- struct omap_hsmmc_data *priv = mmc->priv;
+ struct omap_hsmmc_data *priv = dev_get_priv(dev);
int value;
value = dm_gpio_get_value(&priv->wp_gpio);
#else
static int omap_hsmmc_getcd(struct mmc *mmc)
{
- struct omap_hsmmc_data *priv_data = mmc->priv;
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
int cd_gpio;
/* if no CD return as 1 */
- cd_gpio = priv_data->cd_gpio;
+ cd_gpio = priv->cd_gpio;
if (cd_gpio < 0)
return 1;
static int omap_hsmmc_getwp(struct mmc *mmc)
{
- struct omap_hsmmc_data *priv_data = mmc->priv;
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
int wp_gpio;
/* if no WP return as 0 */
- wp_gpio = priv_data->wp_gpio;
+ wp_gpio = priv->wp_gpio;
if (wp_gpio < 0)
return 0;
#endif
#endif
+#if CONFIG_IS_ENABLED(DM_MMC)
+static const struct dm_mmc_ops omap_hsmmc_ops = {
+ .send_cmd = omap_hsmmc_send_cmd,
+ .set_ios = omap_hsmmc_set_ios,
+#ifdef OMAP_HSMMC_USE_GPIO
+ .get_cd = omap_hsmmc_getcd,
+ .get_wp = omap_hsmmc_getwp,
+#endif
+#ifdef MMC_SUPPORTS_TUNING
+ .execute_tuning = omap_hsmmc_execute_tuning,
+#endif
+ .send_init_stream = omap_hsmmc_send_init_stream,
+};
+#else
static const struct mmc_ops omap_hsmmc_ops = {
.send_cmd = omap_hsmmc_send_cmd,
.set_ios = omap_hsmmc_set_ios,
.getwp = omap_hsmmc_getwp,
#endif
};
+#endif
-#ifndef CONFIG_DM_MMC
+#if !CONFIG_IS_ENABLED(DM_MMC)
int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio,
int wp_gpio)
{
struct mmc *mmc;
- struct omap_hsmmc_data *priv_data;
+ struct omap_hsmmc_data *priv;
struct mmc_config *cfg;
uint host_caps_val;
- priv_data = malloc(sizeof(*priv_data));
- if (priv_data == NULL)
+ priv = malloc(sizeof(*priv));
+ if (priv == NULL)
return -1;
host_caps_val = MMC_MODE_4BIT | MMC_MODE_HS_52MHz | MMC_MODE_HS;
switch (dev_index) {
case 0:
- priv_data->base_addr = (struct hsmmc *)OMAP_HSMMC1_BASE;
+ priv->base_addr = (struct hsmmc *)OMAP_HSMMC1_BASE;
break;
#ifdef OMAP_HSMMC2_BASE
case 1:
- priv_data->base_addr = (struct hsmmc *)OMAP_HSMMC2_BASE;
+ priv->base_addr = (struct hsmmc *)OMAP_HSMMC2_BASE;
#if (defined(CONFIG_OMAP44XX) || defined(CONFIG_OMAP54XX) || \
- defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX) || \
+ defined(CONFIG_DRA7XX) || defined(CONFIG_AM33XX) || \
defined(CONFIG_AM43XX) || defined(CONFIG_SOC_KEYSTONE)) && \
defined(CONFIG_HSMMC2_8BIT)
/* Enable 8-bit interface for eMMC on OMAP4/5 or DRA7XX */
#endif
#ifdef OMAP_HSMMC3_BASE
case 2:
- priv_data->base_addr = (struct hsmmc *)OMAP_HSMMC3_BASE;
-#if (defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX)) && defined(CONFIG_HSMMC3_8BIT)
+ priv->base_addr = (struct hsmmc *)OMAP_HSMMC3_BASE;
+#if defined(CONFIG_DRA7XX) && defined(CONFIG_HSMMC3_8BIT)
/* Enable 8-bit interface for eMMC on DRA7XX */
host_caps_val |= MMC_MODE_8BIT;
#endif
break;
#endif
default:
- priv_data->base_addr = (struct hsmmc *)OMAP_HSMMC1_BASE;
+ priv->base_addr = (struct hsmmc *)OMAP_HSMMC1_BASE;
return 1;
}
#ifdef OMAP_HSMMC_USE_GPIO
/* on error gpio values are set to -1, which is what we want */
- priv_data->cd_gpio = omap_mmc_setup_gpio_in(cd_gpio, "mmc_cd");
- priv_data->wp_gpio = omap_mmc_setup_gpio_in(wp_gpio, "mmc_wp");
+ priv->cd_gpio = omap_mmc_setup_gpio_in(cd_gpio, "mmc_cd");
+ priv->wp_gpio = omap_mmc_setup_gpio_in(wp_gpio, "mmc_wp");
#endif
- cfg = &priv_data->cfg;
+ cfg = &priv->cfg;
cfg->name = "OMAP SD/MMC";
cfg->ops = &omap_hsmmc_ops;
if ((get_cpu_family() == CPU_OMAP34XX) && (get_cpu_rev() <= CPU_3XX_ES21))
cfg->b_max = 1;
#endif
- mmc = mmc_create(cfg, priv_data);
+
+ mmc = mmc_create(cfg, priv);
if (mmc == NULL)
return -1;
return 0;
}
#else
-static int omap_hsmmc_ofdata_to_platdata(struct udevice *dev)
+
+#ifdef CONFIG_IODELAY_RECALIBRATION
+static struct pad_conf_entry *
+omap_hsmmc_get_pad_conf_entry(const fdt32_t *pinctrl, int count)
+{
+ int index = 0;
+ struct pad_conf_entry *padconf;
+
+ padconf = (struct pad_conf_entry *)malloc(sizeof(*padconf) * count);
+ if (!padconf) {
+ debug("failed to allocate memory\n");
+ return 0;
+ }
+
+ while (index < count) {
+ padconf[index].offset = fdt32_to_cpu(pinctrl[2 * index]);
+ padconf[index].val = fdt32_to_cpu(pinctrl[2 * index + 1]);
+ index++;
+ }
+
+ return padconf;
+}
+
+static struct iodelay_cfg_entry *
+omap_hsmmc_get_iodelay_cfg_entry(const fdt32_t *pinctrl, int count)
+{
+ int index = 0;
+ struct iodelay_cfg_entry *iodelay;
+
+ iodelay = (struct iodelay_cfg_entry *)malloc(sizeof(*iodelay) * count);
+ if (!iodelay) {
+ debug("failed to allocate memory\n");
+ return 0;
+ }
+
+ while (index < count) {
+ iodelay[index].offset = fdt32_to_cpu(pinctrl[3 * index]);
+ iodelay[index].a_delay = fdt32_to_cpu(pinctrl[3 * index + 1]);
+ iodelay[index].g_delay = fdt32_to_cpu(pinctrl[3 * index + 2]);
+ index++;
+ }
+
+ return iodelay;
+}
+
+static const fdt32_t *omap_hsmmc_get_pinctrl_entry(u32 phandle,
+ const char *name, int *len)
{
- struct omap_hsmmc_data *priv = dev_get_priv(dev);
const void *fdt = gd->fdt_blob;
- int node = dev->of_offset;
- struct mmc_config *cfg;
- int val;
+ int offset;
+ const fdt32_t *pinctrl;
- priv->base_addr = map_physmem(dev_get_addr(dev), sizeof(struct hsmmc *),
- MAP_NOCACHE);
- cfg = &priv->cfg;
+ offset = fdt_node_offset_by_phandle(fdt, phandle);
+ if (offset < 0) {
+ debug("failed to get pinctrl node %s.\n",
+ fdt_strerror(offset));
+ return 0;
+ }
- cfg->host_caps = MMC_MODE_HS_52MHz | MMC_MODE_HS;
- val = fdtdec_get_int(fdt, node, "bus-width", -1);
- if (val < 0) {
- printf("error: bus-width property missing\n");
- return -ENOENT;
+ pinctrl = fdt_getprop(fdt, offset, name, len);
+ if (!pinctrl) {
+ debug("failed to get property %s\n", name);
+ return 0;
}
- switch (val) {
- case 0x8:
- cfg->host_caps |= MMC_MODE_8BIT;
- case 0x4:
- cfg->host_caps |= MMC_MODE_4BIT;
- break;
- default:
- printf("error: invalid bus-width property\n");
- return -ENOENT;
+ return pinctrl;
+}
+
+static uint32_t omap_hsmmc_get_pad_conf_phandle(struct mmc *mmc,
+ char *prop_name)
+{
+ const void *fdt = gd->fdt_blob;
+ const __be32 *phandle;
+ int node = dev_of_offset(mmc->dev);
+
+ phandle = fdt_getprop(fdt, node, prop_name, NULL);
+ if (!phandle) {
+ debug("failed to get property %s\n", prop_name);
+ return 0;
+ }
+
+ return fdt32_to_cpu(*phandle);
+}
+
+static uint32_t omap_hsmmc_get_iodelay_phandle(struct mmc *mmc,
+ char *prop_name)
+{
+ const void *fdt = gd->fdt_blob;
+ const __be32 *phandle;
+ int len;
+ int count;
+ int node = dev_of_offset(mmc->dev);
+
+ phandle = fdt_getprop(fdt, node, prop_name, &len);
+ if (!phandle) {
+ debug("failed to get property %s\n", prop_name);
+ return 0;
+ }
+
+ /* No manual mode iodelay values if count < 2 */
+ count = len / sizeof(*phandle);
+ if (count < 2)
+ return 0;
+
+ return fdt32_to_cpu(*(phandle + 1));
+}
+
+static struct pad_conf_entry *
+omap_hsmmc_get_pad_conf(struct mmc *mmc, char *prop_name, int *npads)
+{
+ int len;
+ int count;
+ struct pad_conf_entry *padconf;
+ u32 phandle;
+ const fdt32_t *pinctrl;
+
+ phandle = omap_hsmmc_get_pad_conf_phandle(mmc, prop_name);
+ if (!phandle)
+ return ERR_PTR(-EINVAL);
+
+ pinctrl = omap_hsmmc_get_pinctrl_entry(phandle, "pinctrl-single,pins",
+ &len);
+ if (!pinctrl)
+ return ERR_PTR(-EINVAL);
+
+ count = (len / sizeof(*pinctrl)) / 2;
+ padconf = omap_hsmmc_get_pad_conf_entry(pinctrl, count);
+ if (!padconf)
+ return ERR_PTR(-EINVAL);
+
+ *npads = count;
+
+ return padconf;
+}
+
+static struct iodelay_cfg_entry *
+omap_hsmmc_get_iodelay(struct mmc *mmc, char *prop_name, int *niodelay)
+{
+ int len;
+ int count;
+ struct iodelay_cfg_entry *iodelay;
+ u32 phandle;
+ const fdt32_t *pinctrl;
+
+ phandle = omap_hsmmc_get_iodelay_phandle(mmc, prop_name);
+ /* Not all modes have manual mode iodelay values. So its not fatal */
+ if (!phandle)
+ return 0;
+
+ pinctrl = omap_hsmmc_get_pinctrl_entry(phandle, "pinctrl-pin-array",
+ &len);
+ if (!pinctrl)
+ return ERR_PTR(-EINVAL);
+
+ count = (len / sizeof(*pinctrl)) / 3;
+ iodelay = omap_hsmmc_get_iodelay_cfg_entry(pinctrl, count);
+ if (!iodelay)
+ return ERR_PTR(-EINVAL);
+
+ *niodelay = count;
+
+ return iodelay;
+}
+
+static struct omap_hsmmc_pinctrl_state *
+omap_hsmmc_get_pinctrl_by_mode(struct mmc *mmc, char *mode)
+{
+ int index;
+ int npads = 0;
+ int niodelays = 0;
+ const void *fdt = gd->fdt_blob;
+ int node = dev_of_offset(mmc->dev);
+ char prop_name[11];
+ struct omap_hsmmc_pinctrl_state *pinctrl_state;
+
+ pinctrl_state = (struct omap_hsmmc_pinctrl_state *)
+ malloc(sizeof(*pinctrl_state));
+ if (!pinctrl_state) {
+ debug("failed to allocate memory\n");
+ return 0;
}
+ index = fdt_stringlist_search(fdt, node, "pinctrl-names", mode);
+ if (index < 0) {
+ debug("fail to find %s mode %s\n", mode, fdt_strerror(index));
+ goto err_pinctrl_state;
+ }
+
+ sprintf(prop_name, "pinctrl-%d", index);
+
+ pinctrl_state->padconf = omap_hsmmc_get_pad_conf(mmc, prop_name,
+ &npads);
+ if (IS_ERR(pinctrl_state->padconf))
+ goto err_pinctrl_state;
+ pinctrl_state->npads = npads;
+
+ pinctrl_state->iodelay = omap_hsmmc_get_iodelay(mmc, prop_name,
+ &niodelays);
+ if (IS_ERR(pinctrl_state->iodelay))
+ goto err_padconf;
+ pinctrl_state->niodelays = niodelays;
+
+ return pinctrl_state;
+
+err_padconf:
+ kfree(pinctrl_state->padconf);
+
+err_pinctrl_state:
+ kfree(pinctrl_state);
+ return 0;
+}
+
+#define OMAP_HSMMC_SETUP_PINCTRL(capmask, mode, optional) \
+ do { \
+ struct omap_hsmmc_pinctrl_state *s = NULL; \
+ char str[20]; \
+ if (!(cfg->host_caps & capmask)) \
+ break; \
+ \
+ if (priv->hw_rev) { \
+ sprintf(str, "%s-%s", #mode, priv->hw_rev); \
+ s = omap_hsmmc_get_pinctrl_by_mode(mmc, str); \
+ } \
+ \
+ if (!s) \
+ s = omap_hsmmc_get_pinctrl_by_mode(mmc, #mode); \
+ \
+ if (!s && !optional) { \
+ debug("%s: no pinctrl for %s\n", \
+ mmc->dev->name, #mode); \
+ cfg->host_caps &= ~(capmask); \
+ } else { \
+ priv->mode##_pinctrl_state = s; \
+ } \
+ } while (0)
+
+static int omap_hsmmc_get_pinctrl_state(struct mmc *mmc)
+{
+ struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
+ struct mmc_config *cfg = omap_hsmmc_get_cfg(mmc);
+ struct omap_hsmmc_pinctrl_state *default_pinctrl;
+
+ if (!(priv->controller_flags & OMAP_HSMMC_REQUIRE_IODELAY))
+ return 0;
+
+ default_pinctrl = omap_hsmmc_get_pinctrl_by_mode(mmc, "default");
+ if (!default_pinctrl) {
+ printf("no pinctrl state for default mode\n");
+ return -EINVAL;
+ }
+
+ priv->default_pinctrl_state = default_pinctrl;
+
+ OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_SDR104), sdr104, false);
+ OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_SDR50), sdr50, false);
+ OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_DDR50), ddr50, false);
+ OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_SDR25), sdr25, false);
+ OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_SDR12), sdr12, false);
+
+ OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(MMC_HS_200), hs200_1_8v, false);
+ OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(MMC_DDR_52), ddr_1_8v, false);
+ OMAP_HSMMC_SETUP_PINCTRL(MMC_MODE_HS, hs, true);
+
+ return 0;
+}
+#endif
+
+#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
+#ifdef CONFIG_OMAP54XX
+__weak const struct mmc_platform_fixups *platform_fixups_mmc(uint32_t addr)
+{
+ return NULL;
+}
+#endif
+
+static int omap_hsmmc_ofdata_to_platdata(struct udevice *dev)
+{
+ struct omap_hsmmc_plat *plat = dev_get_platdata(dev);
+ struct omap_mmc_of_data *of_data = (void *)dev_get_driver_data(dev);
+
+ struct mmc_config *cfg = &plat->cfg;
+#ifdef CONFIG_OMAP54XX
+ const struct mmc_platform_fixups *fixups;
+#endif
+ const void *fdt = gd->fdt_blob;
+ int node = dev_of_offset(dev);
+ int ret;
+
+ plat->base_addr = map_physmem(devfdt_get_addr(dev),
+ sizeof(struct hsmmc *),
+ MAP_NOCACHE);
+
+ ret = mmc_of_parse(dev, cfg);
+ if (ret < 0)
+ return ret;
+
+ cfg->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
cfg->f_min = 400000;
- cfg->f_max = fdtdec_get_int(fdt, node, "max-frequency", 52000000);
cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
+ if (fdtdec_get_bool(fdt, node, "ti,dual-volt"))
+ plat->controller_flags |= OMAP_HSMMC_SUPPORTS_DUAL_VOLT;
+ if (fdtdec_get_bool(fdt, node, "no-1-8-v"))
+ plat->controller_flags |= OMAP_HSMMC_NO_1_8_V;
+ if (of_data)
+ plat->controller_flags |= of_data->controller_flags;
+
+#ifdef CONFIG_OMAP54XX
+ fixups = platform_fixups_mmc(devfdt_get_addr(dev));
+ if (fixups) {
+ plat->hw_rev = fixups->hw_rev;
+ cfg->host_caps &= ~fixups->unsupported_caps;
+ cfg->f_max = fixups->max_freq;
+ }
+#endif
- priv->cd_inverted = fdtdec_get_bool(fdt, node, "cd-inverted");
+#ifdef OMAP_HSMMC_USE_GPIO
+ plat->cd_inverted = fdtdec_get_bool(fdt, node, "cd-inverted");
+#endif
return 0;
}
+#endif
+
+#ifdef CONFIG_BLK
+static int omap_hsmmc_bind(struct udevice *dev)
+{
+ struct omap_hsmmc_plat *plat = dev_get_platdata(dev);
+
+ return mmc_bind(dev, &plat->mmc, &plat->cfg);
+}
+#endif
static int omap_hsmmc_probe(struct udevice *dev)
{
+ struct omap_hsmmc_plat *plat = dev_get_platdata(dev);
struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
struct omap_hsmmc_data *priv = dev_get_priv(dev);
- struct mmc_config *cfg;
+ struct mmc_config *cfg = &plat->cfg;
struct mmc *mmc;
+#ifdef CONFIG_IODELAY_RECALIBRATION
+ int ret;
+#endif
- cfg = &priv->cfg;
cfg->name = "OMAP SD/MMC";
- cfg->ops = &omap_hsmmc_ops;
+ priv->base_addr = plat->base_addr;
+ priv->controller_flags = plat->controller_flags;
+ priv->hw_rev = plat->hw_rev;
+#ifdef OMAP_HSMMC_USE_GPIO
+ priv->cd_inverted = plat->cd_inverted;
+#endif
+#ifdef CONFIG_BLK
+ mmc = &plat->mmc;
+#else
mmc = mmc_create(cfg, priv);
if (mmc == NULL)
return -1;
+#endif
-#ifdef OMAP_HSMMC_USE_GPIO
+#if defined(OMAP_HSMMC_USE_GPIO) && CONFIG_IS_ENABLED(OF_CONTROL)
gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio, GPIOD_IS_IN);
gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio, GPIOD_IS_IN);
#endif
+ mmc->dev = dev;
upriv->mmc = mmc;
- return 0;
+#ifdef CONFIG_IODELAY_RECALIBRATION
+ ret = omap_hsmmc_get_pinctrl_state(mmc);
+ /*
+ * disable high speed modes for the platforms that require IO delay
+ * and for which we don't have this information
+ */
+ if ((ret < 0) &&
+ (priv->controller_flags & OMAP_HSMMC_REQUIRE_IODELAY)) {
+ priv->controller_flags &= ~OMAP_HSMMC_REQUIRE_IODELAY;
+ cfg->host_caps &= ~(MMC_CAP(MMC_HS_200) | MMC_CAP(MMC_DDR_52) |
+ UHS_CAPS);
+ }
+#endif
+
+ return omap_hsmmc_init_setup(mmc);
}
+#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
+
+static const struct omap_mmc_of_data dra7_mmc_of_data = {
+ .controller_flags = OMAP_HSMMC_REQUIRE_IODELAY,
+};
+
static const struct udevice_id omap_hsmmc_ids[] = {
{ .compatible = "ti,omap3-hsmmc" },
{ .compatible = "ti,omap4-hsmmc" },
{ .compatible = "ti,am33xx-hsmmc" },
+ { .compatible = "ti,dra7-hsmmc", .data = (ulong)&dra7_mmc_of_data },
{ }
};
+#endif
U_BOOT_DRIVER(omap_hsmmc) = {
.name = "omap_hsmmc",
.id = UCLASS_MMC,
+#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
.of_match = omap_hsmmc_ids,
.ofdata_to_platdata = omap_hsmmc_ofdata_to_platdata,
+ .platdata_auto_alloc_size = sizeof(struct omap_hsmmc_plat),
+#endif
+#ifdef CONFIG_BLK
+ .bind = omap_hsmmc_bind,
+#endif
+ .ops = &omap_hsmmc_ops,
.probe = omap_hsmmc_probe,
.priv_auto_alloc_size = sizeof(struct omap_hsmmc_data),
+ .flags = DM_FLAG_PRE_RELOC,
};
#endif
projects / people / ms / u-boot.git / blobdiff