#include <errno.h>
#include <mmc.h>
#include <part.h>
+#include <power/regulator.h>
#include <malloc.h>
#include <memalign.h>
#include <linux/list.h>
#include <div64.h>
#include "mmc_private.h"
+static const unsigned int sd_au_size[] = {
+ 0, SZ_16K / 512, SZ_32K / 512,
+ SZ_64K / 512, SZ_128K / 512, SZ_256K / 512,
+ SZ_512K / 512, SZ_1M / 512, SZ_2M / 512,
+ SZ_4M / 512, SZ_8M / 512, (SZ_8M + SZ_4M) / 512,
+ SZ_16M / 512, (SZ_16M + SZ_8M) / 512, SZ_32M / 512, SZ_64M / 512,
+};
+
+static int mmc_set_signal_voltage(struct mmc *mmc, uint signal_voltage);
+static int mmc_power_cycle(struct mmc *mmc);
+static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps);
+
+#if CONFIG_IS_ENABLED(MMC_TINY)
+static struct mmc mmc_static;
+struct mmc *find_mmc_device(int dev_num)
+{
+ return &mmc_static;
+}
+
+void mmc_do_preinit(void)
+{
+ struct mmc *m = &mmc_static;
+#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
+ mmc_set_preinit(m, 1);
+#endif
+ if (m->preinit)
+ mmc_start_init(m);
+}
+
+struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
+{
+ return &mmc->block_dev;
+}
+#endif
+
+#if !CONFIG_IS_ENABLED(DM_MMC)
+
+static int mmc_wait_dat0(struct mmc *mmc, int state, int timeout)
+{
+ return -ENOSYS;
+}
+
__weak int board_mmc_getwp(struct mmc *mmc)
{
return -1;
{
return -1;
}
+#endif
-int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
+#ifdef CONFIG_MMC_TRACE
+void mmmc_trace_before_send(struct mmc *mmc, struct mmc_cmd *cmd)
{
- int ret;
+ printf("CMD_SEND:%d\n", cmd->cmdidx);
+ printf("\t\tARG\t\t\t 0x%08X\n", cmd->cmdarg);
+}
-#ifdef CONFIG_MMC_TRACE
+void mmmc_trace_after_send(struct mmc *mmc, struct mmc_cmd *cmd, int ret)
+{
int i;
u8 *ptr;
- printf("CMD_SEND:%d\n", cmd->cmdidx);
- printf("\t\tARG\t\t\t 0x%08X\n", cmd->cmdarg);
- ret = mmc->cfg->ops->send_cmd(mmc, cmd, data);
if (ret) {
printf("\t\tRET\t\t\t %d\n", ret);
} else {
break;
}
}
-#else
- ret = mmc->cfg->ops->send_cmd(mmc, cmd, data);
+}
+
+void mmc_trace_state(struct mmc *mmc, struct mmc_cmd *cmd)
+{
+ int status;
+
+ status = (cmd->response[0] & MMC_STATUS_CURR_STATE) >> 9;
+ printf("CURR STATE:%d\n", status);
+}
#endif
+
+#if CONFIG_IS_ENABLED(MMC_VERBOSE) || defined(DEBUG)
+const char *mmc_mode_name(enum bus_mode mode)
+{
+ static const char *const names[] = {
+ [MMC_LEGACY] = "MMC legacy",
+ [SD_LEGACY] = "SD Legacy",
+ [MMC_HS] = "MMC High Speed (26MHz)",
+ [SD_HS] = "SD High Speed (50MHz)",
+ [UHS_SDR12] = "UHS SDR12 (25MHz)",
+ [UHS_SDR25] = "UHS SDR25 (50MHz)",
+ [UHS_SDR50] = "UHS SDR50 (100MHz)",
+ [UHS_SDR104] = "UHS SDR104 (208MHz)",
+ [UHS_DDR50] = "UHS DDR50 (50MHz)",
+ [MMC_HS_52] = "MMC High Speed (52MHz)",
+ [MMC_DDR_52] = "MMC DDR52 (52MHz)",
+ [MMC_HS_200] = "HS200 (200MHz)",
+ };
+
+ if (mode >= MMC_MODES_END)
+ return "Unknown mode";
+ else
+ return names[mode];
+}
+#endif
+
+static uint mmc_mode2freq(struct mmc *mmc, enum bus_mode mode)
+{
+ static const int freqs[] = {
+ [SD_LEGACY] = 25000000,
+ [MMC_HS] = 26000000,
+ [SD_HS] = 50000000,
+ [UHS_SDR12] = 25000000,
+ [UHS_SDR25] = 50000000,
+ [UHS_SDR50] = 100000000,
+ [UHS_SDR104] = 208000000,
+ [UHS_DDR50] = 50000000,
+ [MMC_HS_52] = 52000000,
+ [MMC_DDR_52] = 52000000,
+ [MMC_HS_200] = 200000000,
+ };
+
+ if (mode == MMC_LEGACY)
+ return mmc->legacy_speed;
+ else if (mode >= MMC_MODES_END)
+ return 0;
+ else
+ return freqs[mode];
+}
+
+static int mmc_select_mode(struct mmc *mmc, enum bus_mode mode)
+{
+ mmc->selected_mode = mode;
+ mmc->tran_speed = mmc_mode2freq(mmc, mode);
+ mmc->ddr_mode = mmc_is_mode_ddr(mode);
+ debug("selecting mode %s (freq : %d MHz)\n", mmc_mode_name(mode),
+ mmc->tran_speed / 1000000);
+ return 0;
+}
+
+#if !CONFIG_IS_ENABLED(DM_MMC)
+int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
+{
+ int ret;
+
+ mmmc_trace_before_send(mmc, cmd);
+ ret = mmc->cfg->ops->send_cmd(mmc, cmd, data);
+ mmmc_trace_after_send(mmc, cmd, ret);
+
return ret;
}
+#endif
int mmc_send_status(struct mmc *mmc, int timeout)
{
struct mmc_cmd cmd;
int err, retries = 5;
-#ifdef CONFIG_MMC_TRACE
- int status;
-#endif
cmd.cmdidx = MMC_CMD_SEND_STATUS;
cmd.resp_type = MMC_RSP_R1;
(cmd.response[0] & MMC_STATUS_CURR_STATE) !=
MMC_STATE_PRG)
break;
- else if (cmd.response[0] & MMC_STATUS_MASK) {
+
+ if (cmd.response[0] & MMC_STATUS_MASK) {
#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
printf("Status Error: 0x%08X\n",
cmd.response[0]);
#endif
- return COMM_ERR;
+ return -ECOMM;
}
} else if (--retries < 0)
return err;
udelay(1000);
}
-#ifdef CONFIG_MMC_TRACE
- status = (cmd.response[0] & MMC_STATUS_CURR_STATE) >> 9;
- printf("CURR STATE:%d\n", status);
-#endif
+ mmc_trace_state(mmc, &cmd);
if (timeout <= 0) {
#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
printf("Timeout waiting card ready\n");
#endif
- return TIMEOUT;
+ return -ETIMEDOUT;
}
- if (cmd.response[0] & MMC_STATUS_SWITCH_ERROR)
- return SWITCH_ERR;
return 0;
}
int mmc_set_blocklen(struct mmc *mmc, int len)
{
struct mmc_cmd cmd;
+ int err;
if (mmc->ddr_mode)
return 0;
cmd.resp_type = MMC_RSP_R1;
cmd.cmdarg = len;
- return mmc_send_cmd(mmc, &cmd, NULL);
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+
+#ifdef CONFIG_MMC_QUIRKS
+ if (err && (mmc->quirks & MMC_QUIRK_RETRY_SET_BLOCKLEN)) {
+ int retries = 4;
+ /*
+ * It has been seen that SET_BLOCKLEN may fail on the first
+ * attempt, let's try a few more time
+ */
+ do {
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+ if (!err)
+ break;
+ } while (retries--);
+ }
+#endif
+
+ return err;
}
static int mmc_read_blocks(struct mmc *mmc, void *dst, lbaint_t start,
return blkcnt;
}
-#ifdef CONFIG_BLK
-static ulong mmc_bread(struct udevice *dev, lbaint_t start, lbaint_t blkcnt,
- void *dst)
+#if CONFIG_IS_ENABLED(BLK)
+ulong mmc_bread(struct udevice *dev, lbaint_t start, lbaint_t blkcnt, void *dst)
#else
-static ulong mmc_bread(struct blk_desc *block_dev, lbaint_t start,
- lbaint_t blkcnt, void *dst)
+ulong mmc_bread(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt,
+ void *dst)
#endif
{
-#ifdef CONFIG_BLK
+#if CONFIG_IS_ENABLED(BLK)
struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
#endif
int dev_num = block_dev->devnum;
if (!mmc)
return 0;
- err = blk_dselect_hwpart(block_dev, block_dev->hwpart);
+ if (CONFIG_IS_ENABLED(MMC_TINY))
+ err = mmc_switch_part(mmc, block_dev->hwpart);
+ else
+ err = blk_dselect_hwpart(block_dev, block_dev->hwpart);
+
if (err < 0)
return 0;
return 0;
}
-static int sd_send_op_cond(struct mmc *mmc)
+static int mmc_switch_voltage(struct mmc *mmc, int signal_voltage)
+{
+ struct mmc_cmd cmd;
+ int err = 0;
+
+ /*
+ * Send CMD11 only if the request is to switch the card to
+ * 1.8V signalling.
+ */
+ if (signal_voltage == MMC_SIGNAL_VOLTAGE_330)
+ return mmc_set_signal_voltage(mmc, signal_voltage);
+
+ cmd.cmdidx = SD_CMD_SWITCH_UHS18V;
+ cmd.cmdarg = 0;
+ cmd.resp_type = MMC_RSP_R1;
+
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+ if (err)
+ return err;
+
+ if (!mmc_host_is_spi(mmc) && (cmd.response[0] & MMC_STATUS_ERROR))
+ return -EIO;
+
+ /*
+ * The card should drive cmd and dat[0:3] low immediately
+ * after the response of cmd11, but wait 100 us to be sure
+ */
+ err = mmc_wait_dat0(mmc, 0, 100);
+ if (err == -ENOSYS)
+ udelay(100);
+ else if (err)
+ return -ETIMEDOUT;
+
+ /*
+ * During a signal voltage level switch, the clock must be gated
+ * for 5 ms according to the SD spec
+ */
+ mmc_set_clock(mmc, mmc->clock, true);
+
+ err = mmc_set_signal_voltage(mmc, signal_voltage);
+ if (err)
+ return err;
+
+ /* Keep clock gated for at least 10 ms, though spec only says 5 ms */
+ mdelay(10);
+ mmc_set_clock(mmc, mmc->clock, false);
+
+ /*
+ * Failure to switch is indicated by the card holding
+ * dat[0:3] low. Wait for at least 1 ms according to spec
+ */
+ err = mmc_wait_dat0(mmc, 1, 1000);
+ if (err == -ENOSYS)
+ udelay(1000);
+ else if (err)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static int sd_send_op_cond(struct mmc *mmc, bool uhs_en)
{
int timeout = 1000;
int err;
if (mmc->version == SD_VERSION_2)
cmd.cmdarg |= OCR_HCS;
+ if (uhs_en)
+ cmd.cmdarg |= OCR_S18R;
+
err = mmc_send_cmd(mmc, &cmd, NULL);
if (err)
break;
if (timeout-- <= 0)
- return UNUSABLE_ERR;
+ return -EOPNOTSUPP;
udelay(1000);
}
mmc->ocr = cmd.response[0];
+ if (uhs_en && !(mmc_host_is_spi(mmc)) && (cmd.response[0] & 0x41000000)
+ == 0x41000000) {
+ err = mmc_switch_voltage(mmc, MMC_SIGNAL_VOLTAGE_180);
+ if (err)
+ return err;
+ }
+
mmc->high_capacity = ((mmc->ocr & OCR_HCS) == OCR_HCS);
mmc->rca = 0;
mmc->op_cond_pending = 0;
if (!(mmc->ocr & OCR_BUSY)) {
+ /* Some cards seem to need this */
+ mmc_go_idle(mmc);
+
start = get_timer(0);
while (1) {
err = mmc_send_op_cond_iter(mmc, 1);
if (mmc->ocr & OCR_BUSY)
break;
if (get_timer(start) > timeout)
- return UNUSABLE_ERR;
+ return -EOPNOTSUPP;
udelay(100);
}
}
return err;
}
-
-static int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value)
+int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value)
{
struct mmc_cmd cmd;
int timeout = 1000;
+ int retries = 3;
int ret;
cmd.cmdidx = MMC_CMD_SWITCH;
(index << 16) |
(value << 8);
- ret = mmc_send_cmd(mmc, &cmd, NULL);
+ while (retries > 0) {
+ ret = mmc_send_cmd(mmc, &cmd, NULL);
+
+ /* Waiting for the ready status */
+ if (!ret) {
+ ret = mmc_send_status(mmc, timeout);
+ return ret;
+ }
- /* Waiting for the ready status */
- if (!ret)
- ret = mmc_send_status(mmc, timeout);
+ retries--;
+ }
return ret;
}
-static int mmc_change_freq(struct mmc *mmc)
+static int mmc_set_card_speed(struct mmc *mmc, enum bus_mode mode)
{
- ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
- char cardtype;
int err;
+ int speed_bits;
- mmc->card_caps = 0;
+ ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, MMC_MAX_BLOCK_LEN);
- if (mmc_host_is_spi(mmc))
- return 0;
+ switch (mode) {
+ case MMC_HS:
+ case MMC_HS_52:
+ case MMC_DDR_52:
+ speed_bits = EXT_CSD_TIMING_HS;
+ break;
+ case MMC_HS_200:
+ speed_bits = EXT_CSD_TIMING_HS200;
+ break;
+ case MMC_LEGACY:
+ speed_bits = EXT_CSD_TIMING_LEGACY;
+ break;
+ default:
+ return -EINVAL;
+ }
+ err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING,
+ speed_bits);
+ if (err)
+ return err;
- /* Only version 4 supports high-speed */
- if (mmc->version < MMC_VERSION_4)
- return 0;
+ if ((mode == MMC_HS) || (mode == MMC_HS_52)) {
+ /* Now check to see that it worked */
+ err = mmc_send_ext_csd(mmc, test_csd);
+ if (err)
+ return err;
- mmc->card_caps |= MMC_MODE_4BIT | MMC_MODE_8BIT;
+ /* No high-speed support */
+ if (!test_csd[EXT_CSD_HS_TIMING])
+ return -ENOTSUPP;
+ }
- err = mmc_send_ext_csd(mmc, ext_csd);
+ return 0;
+}
- if (err)
- return err;
+static int mmc_get_capabilities(struct mmc *mmc)
+{
+ u8 *ext_csd = mmc->ext_csd;
+ char cardtype;
- cardtype = ext_csd[EXT_CSD_CARD_TYPE] & 0xf;
+ mmc->card_caps = MMC_MODE_1BIT;
- err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, 1);
+ if (mmc_host_is_spi(mmc))
+ return 0;
- if (err)
- return err == SWITCH_ERR ? 0 : err;
+ /* Only version 4 supports high-speed */
+ if (mmc->version < MMC_VERSION_4)
+ return 0;
- /* Now check to see that it worked */
- err = mmc_send_ext_csd(mmc, ext_csd);
+ if (!ext_csd) {
+ printf("No ext_csd found!\n"); /* this should enver happen */
+ return -ENOTSUPP;
+ }
- if (err)
- return err;
+ mmc->card_caps |= MMC_MODE_4BIT | MMC_MODE_8BIT;
- /* No high-speed support */
- if (!ext_csd[EXT_CSD_HS_TIMING])
- return 0;
+ cardtype = ext_csd[EXT_CSD_CARD_TYPE] & 0x3f;
- /* High Speed is set, there are two types: 52MHz and 26MHz */
+ if (cardtype & (EXT_CSD_CARD_TYPE_HS200_1_2V |
+ EXT_CSD_CARD_TYPE_HS200_1_8V)) {
+ mmc->card_caps |= MMC_MODE_HS200;
+ }
if (cardtype & EXT_CSD_CARD_TYPE_52) {
- if (cardtype & EXT_CSD_CARD_TYPE_DDR_1_8V)
+ if (cardtype & EXT_CSD_CARD_TYPE_DDR_52)
mmc->card_caps |= MMC_MODE_DDR_52MHz;
- mmc->card_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
- } else {
- mmc->card_caps |= MMC_MODE_HS;
+ mmc->card_caps |= MMC_MODE_HS_52MHz;
}
+ if (cardtype & EXT_CSD_CARD_TYPE_26)
+ mmc->card_caps |= MMC_MODE_HS;
return 0;
}
return 0;
}
-static int mmc_switch_part(struct mmc *mmc, unsigned int part_num)
+static int mmc_boot_part_access_chk(struct mmc *mmc, unsigned int part_num)
+{
+ int forbidden = 0;
+ bool change = false;
+
+ if (part_num & PART_ACCESS_MASK)
+ forbidden = MMC_CAP(MMC_HS_200);
+
+ if (MMC_CAP(mmc->selected_mode) & forbidden) {
+ debug("selected mode (%s) is forbidden for part %d\n",
+ mmc_mode_name(mmc->selected_mode), part_num);
+ change = true;
+ } else if (mmc->selected_mode != mmc->best_mode) {
+ debug("selected mode is not optimal\n");
+ change = true;
+ }
+
+ if (change)
+ return mmc_select_mode_and_width(mmc,
+ mmc->card_caps & ~forbidden);
+
+ return 0;
+}
+
+int mmc_switch_part(struct mmc *mmc, unsigned int part_num)
{
int ret;
+ ret = mmc_boot_part_access_chk(mmc, part_num);
+ if (ret)
+ return ret;
+
ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF,
(mmc->part_config & ~PART_ACCESS_MASK)
| (part_num & PART_ACCESS_MASK));
return ret;
}
-#ifdef CONFIG_BLK
-static int mmc_select_hwpart(struct udevice *bdev, int hwpart)
-{
- struct udevice *mmc_dev = dev_get_parent(bdev);
- struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
- struct blk_desc *desc = dev_get_uclass_platdata(bdev);
- int ret;
-
- if (desc->hwpart == hwpart)
- return 0;
-
- if (mmc->part_config == MMCPART_NOAVAILABLE)
- return -EMEDIUMTYPE;
-
- ret = mmc_switch_part(mmc, hwpart);
- if (ret)
- return ret;
-
- return 0;
-}
-#else
-static int mmc_select_hwpartp(struct blk_desc *desc, int hwpart)
-{
- struct mmc *mmc = find_mmc_device(desc->devnum);
- int ret;
-
- if (!mmc)
- return -ENODEV;
-
- if (mmc->block_dev.hwpart == hwpart)
- return 0;
-
- if (mmc->part_config == MMCPART_NOAVAILABLE)
- return -EMEDIUMTYPE;
-
- ret = mmc_switch_part(mmc, hwpart);
- if (ret)
- return ret;
-
- return 0;
-}
-#endif
-
int mmc_hwpart_config(struct mmc *mmc,
const struct mmc_hwpart_conf *conf,
enum mmc_hwpart_conf_mode mode)
return 0;
}
+#if !CONFIG_IS_ENABLED(DM_MMC)
int mmc_getcd(struct mmc *mmc)
{
int cd;
return cd;
}
+#endif
static int sd_switch(struct mmc *mmc, int mode, int group, u8 value, u8 *resp)
{
}
-static int sd_change_freq(struct mmc *mmc)
+static int sd_get_capabilities(struct mmc *mmc)
{
int err;
struct mmc_cmd cmd;
- ALLOC_CACHE_ALIGN_BUFFER(uint, scr, 2);
- ALLOC_CACHE_ALIGN_BUFFER(uint, switch_status, 16);
+ ALLOC_CACHE_ALIGN_BUFFER(__be32, scr, 2);
+ ALLOC_CACHE_ALIGN_BUFFER(__be32, switch_status, 16);
struct mmc_data data;
int timeout;
+ u32 sd3_bus_mode;
- mmc->card_caps = 0;
+ mmc->card_caps = MMC_MODE_1BIT;
if (mmc_host_is_spi(mmc))
return 0;
}
/* If high-speed isn't supported, we return */
- if (!(__be32_to_cpu(switch_status[3]) & SD_HIGHSPEED_SUPPORTED))
- return 0;
+ if (__be32_to_cpu(switch_status[3]) & SD_HIGHSPEED_SUPPORTED)
+ mmc->card_caps |= MMC_CAP(SD_HS);
- /*
- * If the host doesn't support SD_HIGHSPEED, do not switch card to
- * HIGHSPEED mode even if the card support SD_HIGHSPPED.
- * This can avoid furthur problem when the card runs in different
- * mode between the host.
- */
- if (!((mmc->cfg->host_caps & MMC_MODE_HS_52MHz) &&
- (mmc->cfg->host_caps & MMC_MODE_HS)))
+ /* Version before 3.0 don't support UHS modes */
+ if (mmc->version < SD_VERSION_3)
return 0;
- err = sd_switch(mmc, SD_SWITCH_SWITCH, 0, 1, (u8 *)switch_status);
+ sd3_bus_mode = __be32_to_cpu(switch_status[3]) >> 16 & 0x1f;
+ if (sd3_bus_mode & SD_MODE_UHS_SDR104)
+ mmc->card_caps |= MMC_CAP(UHS_SDR104);
+ if (sd3_bus_mode & SD_MODE_UHS_SDR50)
+ mmc->card_caps |= MMC_CAP(UHS_SDR50);
+ if (sd3_bus_mode & SD_MODE_UHS_SDR25)
+ mmc->card_caps |= MMC_CAP(UHS_SDR25);
+ if (sd3_bus_mode & SD_MODE_UHS_SDR12)
+ mmc->card_caps |= MMC_CAP(UHS_SDR12);
+ if (sd3_bus_mode & SD_MODE_UHS_DDR50)
+ mmc->card_caps |= MMC_CAP(UHS_DDR50);
+
+ return 0;
+}
+
+static int sd_set_card_speed(struct mmc *mmc, enum bus_mode mode)
+{
+ int err;
+
+ ALLOC_CACHE_ALIGN_BUFFER(uint, switch_status, 16);
+ int speed;
+
+ switch (mode) {
+ case SD_LEGACY:
+ case UHS_SDR12:
+ speed = UHS_SDR12_BUS_SPEED;
+ break;
+ case SD_HS:
+ case UHS_SDR25:
+ speed = UHS_SDR25_BUS_SPEED;
+ break;
+ case UHS_SDR50:
+ speed = UHS_SDR50_BUS_SPEED;
+ break;
+ case UHS_DDR50:
+ speed = UHS_DDR50_BUS_SPEED;
+ break;
+ case UHS_SDR104:
+ speed = UHS_SDR104_BUS_SPEED;
+ break;
+ default:
+ return -EINVAL;
+ }
+ err = sd_switch(mmc, SD_SWITCH_SWITCH, 0, speed, (u8 *)switch_status);
if (err)
return err;
- if ((__be32_to_cpu(switch_status[4]) & 0x0f000000) == 0x01000000)
- mmc->card_caps |= MMC_MODE_HS;
+ if ((__be32_to_cpu(switch_status[4]) >> 24) != speed)
+ return -ENOTSUPP;
return 0;
}
-/* frequency bases */
-/* divided by 10 to be nice to platforms without floating point */
-static const int fbase[] = {
- 10000,
- 100000,
- 1000000,
- 10000000,
-};
+int sd_select_bus_width(struct mmc *mmc, int w)
+{
+ int err;
+ struct mmc_cmd cmd;
-/* Multiplier values for TRAN_SPEED. Multiplied by 10 to be nice
- * to platforms without floating point.
- */
-static const int multipliers[] = {
- 0, /* reserved */
- 10,
- 12,
- 13,
- 15,
- 20,
- 25,
- 30,
- 35,
- 40,
- 45,
- 50,
- 55,
+ if ((w != 4) && (w != 1))
+ return -EINVAL;
+
+ cmd.cmdidx = MMC_CMD_APP_CMD;
+ cmd.resp_type = MMC_RSP_R1;
+ cmd.cmdarg = mmc->rca << 16;
+
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+ if (err)
+ return err;
+
+ cmd.cmdidx = SD_CMD_APP_SET_BUS_WIDTH;
+ cmd.resp_type = MMC_RSP_R1;
+ if (w == 4)
+ cmd.cmdarg = 2;
+ else if (w == 1)
+ cmd.cmdarg = 0;
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+static int sd_read_ssr(struct mmc *mmc)
+{
+ int err, i;
+ struct mmc_cmd cmd;
+ ALLOC_CACHE_ALIGN_BUFFER(uint, ssr, 16);
+ struct mmc_data data;
+ int timeout = 3;
+ unsigned int au, eo, et, es;
+
+ cmd.cmdidx = MMC_CMD_APP_CMD;
+ cmd.resp_type = MMC_RSP_R1;
+ cmd.cmdarg = mmc->rca << 16;
+
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+ if (err)
+ return err;
+
+ cmd.cmdidx = SD_CMD_APP_SD_STATUS;
+ cmd.resp_type = MMC_RSP_R1;
+ cmd.cmdarg = 0;
+
+retry_ssr:
+ data.dest = (char *)ssr;
+ data.blocksize = 64;
+ data.blocks = 1;
+ data.flags = MMC_DATA_READ;
+
+ err = mmc_send_cmd(mmc, &cmd, &data);
+ if (err) {
+ if (timeout--)
+ goto retry_ssr;
+
+ return err;
+ }
+
+ for (i = 0; i < 16; i++)
+ ssr[i] = be32_to_cpu(ssr[i]);
+
+ au = (ssr[2] >> 12) & 0xF;
+ if ((au <= 9) || (mmc->version == SD_VERSION_3)) {
+ mmc->ssr.au = sd_au_size[au];
+ es = (ssr[3] >> 24) & 0xFF;
+ es |= (ssr[2] & 0xFF) << 8;
+ et = (ssr[3] >> 18) & 0x3F;
+ if (es && et) {
+ eo = (ssr[3] >> 16) & 0x3;
+ mmc->ssr.erase_timeout = (et * 1000) / es;
+ mmc->ssr.erase_offset = eo * 1000;
+ }
+ } else {
+ debug("Invalid Allocation Unit Size.\n");
+ }
+
+ return 0;
+}
+
+/* frequency bases */
+/* divided by 10 to be nice to platforms without floating point */
+static const int fbase[] = {
+ 10000,
+ 100000,
+ 1000000,
+ 10000000,
+};
+
+/* Multiplier values for TRAN_SPEED. Multiplied by 10 to be nice
+ * to platforms without floating point.
+ */
+static const u8 multipliers[] = {
+ 0, /* reserved */
+ 10,
+ 12,
+ 13,
+ 15,
+ 20,
+ 25,
+ 30,
+ 35,
+ 40,
+ 45,
+ 50,
+ 55,
60,
70,
80,
};
-static void mmc_set_ios(struct mmc *mmc)
+static inline int bus_width(uint cap)
+{
+ if (cap == MMC_MODE_8BIT)
+ return 8;
+ if (cap == MMC_MODE_4BIT)
+ return 4;
+ if (cap == MMC_MODE_1BIT)
+ return 1;
+ printf("invalid bus witdh capability 0x%x\n", cap);
+ return 0;
+}
+
+#if !CONFIG_IS_ENABLED(DM_MMC)
+static int mmc_execute_tuning(struct mmc *mmc, uint opcode)
{
+ return -ENOTSUPP;
+}
+
+static void mmc_send_init_stream(struct mmc *mmc)
+{
+}
+
+static int mmc_set_ios(struct mmc *mmc)
+{
+ int ret = 0;
+
if (mmc->cfg->ops->set_ios)
- mmc->cfg->ops->set_ios(mmc);
+ ret = mmc->cfg->ops->set_ios(mmc);
+
+ return ret;
}
+#endif
-void mmc_set_clock(struct mmc *mmc, uint clock)
+int mmc_set_clock(struct mmc *mmc, uint clock, bool disable)
{
if (clock > mmc->cfg->f_max)
clock = mmc->cfg->f_max;
clock = mmc->cfg->f_min;
mmc->clock = clock;
+ mmc->clk_disable = disable;
- mmc_set_ios(mmc);
+ return mmc_set_ios(mmc);
}
-static void mmc_set_bus_width(struct mmc *mmc, uint width)
+static int mmc_set_bus_width(struct mmc *mmc, uint width)
{
mmc->bus_width = width;
- mmc_set_ios(mmc);
+ return mmc_set_ios(mmc);
+}
+
+#if CONFIG_IS_ENABLED(MMC_VERBOSE) || defined(DEBUG)
+/*
+ * helper function to display the capabilities in a human
+ * friendly manner. The capabilities include bus width and
+ * supported modes.
+ */
+void mmc_dump_capabilities(const char *text, uint caps)
+{
+ enum bus_mode mode;
+
+ printf("%s: widths [", text);
+ if (caps & MMC_MODE_8BIT)
+ printf("8, ");
+ if (caps & MMC_MODE_4BIT)
+ printf("4, ");
+ if (caps & MMC_MODE_1BIT)
+ printf("1, ");
+ printf("\b\b] modes [");
+ for (mode = MMC_LEGACY; mode < MMC_MODES_END; mode++)
+ if (MMC_CAP(mode) & caps)
+ printf("%s, ", mmc_mode_name(mode));
+ printf("\b\b]\n");
+}
+#endif
+
+struct mode_width_tuning {
+ enum bus_mode mode;
+ uint widths;
+ uint tuning;
+};
+
+static int mmc_set_signal_voltage(struct mmc *mmc, uint signal_voltage)
+{
+ mmc->signal_voltage = signal_voltage;
+ return mmc_set_ios(mmc);
+}
+
+static const struct mode_width_tuning sd_modes_by_pref[] = {
+ {
+ .mode = UHS_SDR104,
+ .widths = MMC_MODE_4BIT | MMC_MODE_1BIT,
+ .tuning = MMC_CMD_SEND_TUNING_BLOCK
+ },
+ {
+ .mode = UHS_SDR50,
+ .widths = MMC_MODE_4BIT | MMC_MODE_1BIT,
+ },
+ {
+ .mode = UHS_DDR50,
+ .widths = MMC_MODE_4BIT | MMC_MODE_1BIT,
+ },
+ {
+ .mode = UHS_SDR25,
+ .widths = MMC_MODE_4BIT | MMC_MODE_1BIT,
+ },
+ {
+ .mode = SD_HS,
+ .widths = MMC_MODE_4BIT | MMC_MODE_1BIT,
+ },
+ {
+ .mode = UHS_SDR12,
+ .widths = MMC_MODE_4BIT | MMC_MODE_1BIT,
+ },
+ {
+ .mode = SD_LEGACY,
+ .widths = MMC_MODE_4BIT | MMC_MODE_1BIT,
+ }
+};
+
+#define for_each_sd_mode_by_pref(caps, mwt) \
+ for (mwt = sd_modes_by_pref;\
+ mwt < sd_modes_by_pref + ARRAY_SIZE(sd_modes_by_pref);\
+ mwt++) \
+ if (caps & MMC_CAP(mwt->mode))
+
+static int sd_select_mode_and_width(struct mmc *mmc, uint card_caps)
+{
+ int err;
+ uint widths[] = {MMC_MODE_4BIT, MMC_MODE_1BIT};
+ const struct mode_width_tuning *mwt;
+ bool uhs_en = (mmc->ocr & OCR_S18R) ? true : false;
+ uint caps;
+
+
+ /* Restrict card's capabilities by what the host can do */
+ caps = card_caps & (mmc->host_caps | MMC_MODE_1BIT);
+
+ if (!uhs_en)
+ caps &= ~UHS_CAPS;
+
+ for_each_sd_mode_by_pref(caps, mwt) {
+ uint *w;
+
+ for (w = widths; w < widths + ARRAY_SIZE(widths); w++) {
+ if (*w & caps & mwt->widths) {
+ debug("trying mode %s width %d (at %d MHz)\n",
+ mmc_mode_name(mwt->mode),
+ bus_width(*w),
+ mmc_mode2freq(mmc, mwt->mode) / 1000000);
+
+ /* configure the bus width (card + host) */
+ err = sd_select_bus_width(mmc, bus_width(*w));
+ if (err)
+ goto error;
+ mmc_set_bus_width(mmc, bus_width(*w));
+
+ /* configure the bus mode (card) */
+ err = sd_set_card_speed(mmc, mwt->mode);
+ if (err)
+ goto error;
+
+ /* configure the bus mode (host) */
+ mmc_select_mode(mmc, mwt->mode);
+ mmc_set_clock(mmc, mmc->tran_speed, false);
+
+ /* execute tuning if needed */
+ if (mwt->tuning && !mmc_host_is_spi(mmc)) {
+ err = mmc_execute_tuning(mmc,
+ mwt->tuning);
+ if (err) {
+ debug("tuning failed\n");
+ goto error;
+ }
+ }
+
+ err = sd_read_ssr(mmc);
+ if (!err)
+ return 0;
+
+ printf("bad ssr\n");
+
+error:
+ /* revert to a safer bus speed */
+ mmc_select_mode(mmc, SD_LEGACY);
+ mmc_set_clock(mmc, mmc->tran_speed, false);
+ }
+ }
+ }
+
+ printf("unable to select a mode\n");
+ return -ENOTSUPP;
+}
+
+/*
+ * read the compare the part of ext csd that is constant.
+ * This can be used to check that the transfer is working
+ * as expected.
+ */
+static int mmc_read_and_compare_ext_csd(struct mmc *mmc)
+{
+ int err;
+ const u8 *ext_csd = mmc->ext_csd;
+ ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, MMC_MAX_BLOCK_LEN);
+
+ err = mmc_send_ext_csd(mmc, test_csd);
+ if (err)
+ return err;
+
+ /* Only compare read only fields */
+ if (ext_csd[EXT_CSD_PARTITIONING_SUPPORT]
+ == test_csd[EXT_CSD_PARTITIONING_SUPPORT] &&
+ ext_csd[EXT_CSD_HC_WP_GRP_SIZE]
+ == test_csd[EXT_CSD_HC_WP_GRP_SIZE] &&
+ ext_csd[EXT_CSD_REV]
+ == test_csd[EXT_CSD_REV] &&
+ ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]
+ == test_csd[EXT_CSD_HC_ERASE_GRP_SIZE] &&
+ memcmp(&ext_csd[EXT_CSD_SEC_CNT],
+ &test_csd[EXT_CSD_SEC_CNT], 4) == 0)
+ return 0;
+
+ return -EBADMSG;
+}
+
+static const struct mode_width_tuning mmc_modes_by_pref[] = {
+ {
+ .mode = MMC_HS_200,
+ .widths = MMC_MODE_8BIT | MMC_MODE_4BIT,
+ .tuning = MMC_CMD_SEND_TUNING_BLOCK_HS200
+ },
+ {
+ .mode = MMC_DDR_52,
+ .widths = MMC_MODE_8BIT | MMC_MODE_4BIT,
+ },
+ {
+ .mode = MMC_HS_52,
+ .widths = MMC_MODE_8BIT | MMC_MODE_4BIT | MMC_MODE_1BIT,
+ },
+ {
+ .mode = MMC_HS,
+ .widths = MMC_MODE_8BIT | MMC_MODE_4BIT | MMC_MODE_1BIT,
+ },
+ {
+ .mode = MMC_LEGACY,
+ .widths = MMC_MODE_8BIT | MMC_MODE_4BIT | MMC_MODE_1BIT,
+ }
+};
+
+#define for_each_mmc_mode_by_pref(caps, mwt) \
+ for (mwt = mmc_modes_by_pref;\
+ mwt < mmc_modes_by_pref + ARRAY_SIZE(mmc_modes_by_pref);\
+ mwt++) \
+ if (caps & MMC_CAP(mwt->mode))
+
+static const struct ext_csd_bus_width {
+ uint cap;
+ bool is_ddr;
+ uint ext_csd_bits;
+} ext_csd_bus_width[] = {
+ {MMC_MODE_8BIT, true, EXT_CSD_DDR_BUS_WIDTH_8},
+ {MMC_MODE_4BIT, true, EXT_CSD_DDR_BUS_WIDTH_4},
+ {MMC_MODE_8BIT, false, EXT_CSD_BUS_WIDTH_8},
+ {MMC_MODE_4BIT, false, EXT_CSD_BUS_WIDTH_4},
+ {MMC_MODE_1BIT, false, EXT_CSD_BUS_WIDTH_1},
+};
+
+#define for_each_supported_width(caps, ddr, ecbv) \
+ for (ecbv = ext_csd_bus_width;\
+ ecbv < ext_csd_bus_width + ARRAY_SIZE(ext_csd_bus_width);\
+ ecbv++) \
+ if ((ddr == ecbv->is_ddr) && (caps & ecbv->cap))
+
+static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps)
+{
+ int err;
+ const struct mode_width_tuning *mwt;
+ const struct ext_csd_bus_width *ecbw;
+
+ /* Restrict card's capabilities by what the host can do */
+ card_caps &= (mmc->host_caps | MMC_MODE_1BIT);
+
+ /* Only version 4 of MMC supports wider bus widths */
+ if (mmc->version < MMC_VERSION_4)
+ return 0;
+
+ if (!mmc->ext_csd) {
+ debug("No ext_csd found!\n"); /* this should enver happen */
+ return -ENOTSUPP;
+ }
+
+ mmc_set_clock(mmc, mmc->legacy_speed, false);
+
+ for_each_mmc_mode_by_pref(card_caps, mwt) {
+ for_each_supported_width(card_caps & mwt->widths,
+ mmc_is_mode_ddr(mwt->mode), ecbw) {
+ debug("trying mode %s width %d (at %d MHz)\n",
+ mmc_mode_name(mwt->mode),
+ bus_width(ecbw->cap),
+ mmc_mode2freq(mmc, mwt->mode) / 1000000);
+ /* configure the bus width (card + host) */
+ err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_BUS_WIDTH,
+ ecbw->ext_csd_bits & ~EXT_CSD_DDR_FLAG);
+ if (err)
+ goto error;
+ mmc_set_bus_width(mmc, bus_width(ecbw->cap));
+
+ /* configure the bus speed (card) */
+ err = mmc_set_card_speed(mmc, mwt->mode);
+ if (err)
+ goto error;
+
+ /*
+ * configure the bus width AND the ddr mode (card)
+ * The host side will be taken care of in the next step
+ */
+ if (ecbw->ext_csd_bits & EXT_CSD_DDR_FLAG) {
+ err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_BUS_WIDTH,
+ ecbw->ext_csd_bits);
+ if (err)
+ goto error;
+ }
+
+ /* configure the bus mode (host) */
+ mmc_select_mode(mmc, mwt->mode);
+ mmc_set_clock(mmc, mmc->tran_speed, false);
+
+ /* execute tuning if needed */
+ if (mwt->tuning) {
+ err = mmc_execute_tuning(mmc, mwt->tuning);
+ if (err) {
+ debug("tuning failed\n");
+ goto error;
+ }
+ }
+
+ /* do a transfer to check the configuration */
+ err = mmc_read_and_compare_ext_csd(mmc);
+ if (!err)
+ return 0;
+error:
+ /* if an error occured, revert to a safer bus mode */
+ mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_BUS_WIDTH, EXT_CSD_BUS_WIDTH_1);
+ mmc_select_mode(mmc, MMC_LEGACY);
+ mmc_set_bus_width(mmc, 1);
+ }
+ }
+
+ printf("unable to select a mode\n");
+
+ return -ENOTSUPP;
+}
+
+static int mmc_startup_v4(struct mmc *mmc)
+{
+ int err, i;
+ u64 capacity;
+ bool has_parts = false;
+ bool part_completed;
+ u8 *ext_csd;
+
+ if (IS_SD(mmc) || (mmc->version < MMC_VERSION_4))
+ return 0;
+
+ ext_csd = malloc_cache_aligned(MMC_MAX_BLOCK_LEN);
+ if (!ext_csd)
+ return -ENOMEM;
+
+ mmc->ext_csd = ext_csd;
+
+ /* check ext_csd version and capacity */
+ err = mmc_send_ext_csd(mmc, ext_csd);
+ if (err)
+ return err;
+ if (ext_csd[EXT_CSD_REV] >= 2) {
+ /*
+ * According to the JEDEC Standard, the value of
+ * ext_csd's capacity is valid if the value is more
+ * than 2GB
+ */
+ capacity = ext_csd[EXT_CSD_SEC_CNT] << 0
+ | ext_csd[EXT_CSD_SEC_CNT + 1] << 8
+ | ext_csd[EXT_CSD_SEC_CNT + 2] << 16
+ | ext_csd[EXT_CSD_SEC_CNT + 3] << 24;
+ capacity *= MMC_MAX_BLOCK_LEN;
+ if ((capacity >> 20) > 2 * 1024)
+ mmc->capacity_user = capacity;
+ }
+
+ switch (ext_csd[EXT_CSD_REV]) {
+ case 1:
+ mmc->version = MMC_VERSION_4_1;
+ break;
+ case 2:
+ mmc->version = MMC_VERSION_4_2;
+ break;
+ case 3:
+ mmc->version = MMC_VERSION_4_3;
+ break;
+ case 5:
+ mmc->version = MMC_VERSION_4_41;
+ break;
+ case 6:
+ mmc->version = MMC_VERSION_4_5;
+ break;
+ case 7:
+ mmc->version = MMC_VERSION_5_0;
+ break;
+ case 8:
+ mmc->version = MMC_VERSION_5_1;
+ break;
+ }
+
+ /* The partition data may be non-zero but it is only
+ * effective if PARTITION_SETTING_COMPLETED is set in
+ * EXT_CSD, so ignore any data if this bit is not set,
+ * except for enabling the high-capacity group size
+ * definition (see below).
+ */
+ part_completed = !!(ext_csd[EXT_CSD_PARTITION_SETTING] &
+ EXT_CSD_PARTITION_SETTING_COMPLETED);
+
+ /* store the partition info of emmc */
+ mmc->part_support = ext_csd[EXT_CSD_PARTITIONING_SUPPORT];
+ if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) ||
+ ext_csd[EXT_CSD_BOOT_MULT])
+ mmc->part_config = ext_csd[EXT_CSD_PART_CONF];
+ if (part_completed &&
+ (ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & ENHNCD_SUPPORT))
+ mmc->part_attr = ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE];
+
+ mmc->capacity_boot = ext_csd[EXT_CSD_BOOT_MULT] << 17;
+
+ mmc->capacity_rpmb = ext_csd[EXT_CSD_RPMB_MULT] << 17;
+
+ for (i = 0; i < 4; i++) {
+ int idx = EXT_CSD_GP_SIZE_MULT + i * 3;
+ uint mult = (ext_csd[idx + 2] << 16) +
+ (ext_csd[idx + 1] << 8) + ext_csd[idx];
+ if (mult)
+ has_parts = true;
+ if (!part_completed)
+ continue;
+ mmc->capacity_gp[i] = mult;
+ mmc->capacity_gp[i] *=
+ ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
+ mmc->capacity_gp[i] *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
+ mmc->capacity_gp[i] <<= 19;
+ }
+
+ if (part_completed) {
+ mmc->enh_user_size =
+ (ext_csd[EXT_CSD_ENH_SIZE_MULT + 2] << 16) +
+ (ext_csd[EXT_CSD_ENH_SIZE_MULT + 1] << 8) +
+ ext_csd[EXT_CSD_ENH_SIZE_MULT];
+ mmc->enh_user_size *= ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
+ mmc->enh_user_size *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
+ mmc->enh_user_size <<= 19;
+ mmc->enh_user_start =
+ (ext_csd[EXT_CSD_ENH_START_ADDR + 3] << 24) +
+ (ext_csd[EXT_CSD_ENH_START_ADDR + 2] << 16) +
+ (ext_csd[EXT_CSD_ENH_START_ADDR + 1] << 8) +
+ ext_csd[EXT_CSD_ENH_START_ADDR];
+ if (mmc->high_capacity)
+ mmc->enh_user_start <<= 9;
+ }
+
+ /*
+ * Host needs to enable ERASE_GRP_DEF bit if device is
+ * partitioned. This bit will be lost every time after a reset
+ * or power off. This will affect erase size.
+ */
+ if (part_completed)
+ has_parts = true;
+ if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) &&
+ (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & PART_ENH_ATTRIB))
+ has_parts = true;
+ if (has_parts) {
+ err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_ERASE_GROUP_DEF, 1);
+
+ if (err)
+ return err;
+
+ ext_csd[EXT_CSD_ERASE_GROUP_DEF] = 1;
+ }
+
+ if (ext_csd[EXT_CSD_ERASE_GROUP_DEF] & 0x01) {
+ /* Read out group size from ext_csd */
+ mmc->erase_grp_size =
+ ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * 1024;
+ /*
+ * if high capacity and partition setting completed
+ * SEC_COUNT is valid even if it is smaller than 2 GiB
+ * JEDEC Standard JESD84-B45, 6.2.4
+ */
+ if (mmc->high_capacity && part_completed) {
+ capacity = (ext_csd[EXT_CSD_SEC_CNT]) |
+ (ext_csd[EXT_CSD_SEC_CNT + 1] << 8) |
+ (ext_csd[EXT_CSD_SEC_CNT + 2] << 16) |
+ (ext_csd[EXT_CSD_SEC_CNT + 3] << 24);
+ capacity *= MMC_MAX_BLOCK_LEN;
+ mmc->capacity_user = capacity;
+ }
+ } else {
+ /* Calculate the group size from the csd value. */
+ int erase_gsz, erase_gmul;
+
+ erase_gsz = (mmc->csd[2] & 0x00007c00) >> 10;
+ erase_gmul = (mmc->csd[2] & 0x000003e0) >> 5;
+ mmc->erase_grp_size = (erase_gsz + 1)
+ * (erase_gmul + 1);
+ }
+
+ mmc->hc_wp_grp_size = 1024
+ * ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]
+ * ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
+
+ mmc->wr_rel_set = ext_csd[EXT_CSD_WR_REL_SET];
+
+ return 0;
}
static int mmc_startup(struct mmc *mmc)
{
int err, i;
uint mult, freq;
- u64 cmult, csize, capacity;
+ u64 cmult, csize;
struct mmc_cmd cmd;
- ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
- ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, MMC_MAX_BLOCK_LEN);
- int timeout = 1000;
- bool has_parts = false;
- bool part_completed;
struct blk_desc *bdesc;
#ifdef CONFIG_MMC_SPI_CRC_ON
cmd.resp_type = MMC_RSP_R1;
cmd.cmdarg = 1;
err = mmc_send_cmd(mmc, &cmd, NULL);
-
if (err)
return err;
}
err = mmc_send_cmd(mmc, &cmd, NULL);
+#ifdef CONFIG_MMC_QUIRKS
+ if (err && (mmc->quirks & MMC_QUIRK_RETRY_SEND_CID)) {
+ int retries = 4;
+ /*
+ * It has been seen that SEND_CID may fail on the first
+ * attempt, let's try a few more time
+ */
+ do {
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+ if (!err)
+ break;
+ } while (retries--);
+ }
+#endif
+
if (err)
return err;
err = mmc_send_cmd(mmc, &cmd, NULL);
- /* Waiting for the ready status */
- mmc_send_status(mmc, timeout);
-
if (err)
return err;
freq = fbase[(cmd.response[0] & 0x7)];
mult = multipliers[((cmd.response[0] >> 3) & 0xf)];
- mmc->tran_speed = freq * mult;
+ mmc->legacy_speed = freq * mult;
+ mmc_select_mode(mmc, MMC_LEGACY);
mmc->dsr_imp = ((cmd.response[1] >> 12) & 0x1);
mmc->read_bl_len = 1 << ((cmd.response[1] >> 16) & 0xf);
*/
mmc->erase_grp_size = 1;
mmc->part_config = MMCPART_NOAVAILABLE;
- if (!IS_SD(mmc) && (mmc->version >= MMC_VERSION_4)) {
- /* check ext_csd version and capacity */
- err = mmc_send_ext_csd(mmc, ext_csd);
- if (err)
- return err;
- if (ext_csd[EXT_CSD_REV] >= 2) {
- /*
- * According to the JEDEC Standard, the value of
- * ext_csd's capacity is valid if the value is more
- * than 2GB
- */
- capacity = ext_csd[EXT_CSD_SEC_CNT] << 0
- | ext_csd[EXT_CSD_SEC_CNT + 1] << 8
- | ext_csd[EXT_CSD_SEC_CNT + 2] << 16
- | ext_csd[EXT_CSD_SEC_CNT + 3] << 24;
- capacity *= MMC_MAX_BLOCK_LEN;
- if ((capacity >> 20) > 2 * 1024)
- mmc->capacity_user = capacity;
- }
-
- switch (ext_csd[EXT_CSD_REV]) {
- case 1:
- mmc->version = MMC_VERSION_4_1;
- break;
- case 2:
- mmc->version = MMC_VERSION_4_2;
- break;
- case 3:
- mmc->version = MMC_VERSION_4_3;
- break;
- case 5:
- mmc->version = MMC_VERSION_4_41;
- break;
- case 6:
- mmc->version = MMC_VERSION_4_5;
- break;
- case 7:
- mmc->version = MMC_VERSION_5_0;
- break;
- }
-
- /* The partition data may be non-zero but it is only
- * effective if PARTITION_SETTING_COMPLETED is set in
- * EXT_CSD, so ignore any data if this bit is not set,
- * except for enabling the high-capacity group size
- * definition (see below). */
- part_completed = !!(ext_csd[EXT_CSD_PARTITION_SETTING] &
- EXT_CSD_PARTITION_SETTING_COMPLETED);
-
- /* store the partition info of emmc */
- mmc->part_support = ext_csd[EXT_CSD_PARTITIONING_SUPPORT];
- if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) ||
- ext_csd[EXT_CSD_BOOT_MULT])
- mmc->part_config = ext_csd[EXT_CSD_PART_CONF];
- if (part_completed &&
- (ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & ENHNCD_SUPPORT))
- mmc->part_attr = ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE];
-
- mmc->capacity_boot = ext_csd[EXT_CSD_BOOT_MULT] << 17;
-
- mmc->capacity_rpmb = ext_csd[EXT_CSD_RPMB_MULT] << 17;
-
- for (i = 0; i < 4; i++) {
- int idx = EXT_CSD_GP_SIZE_MULT + i * 3;
- uint mult = (ext_csd[idx + 2] << 16) +
- (ext_csd[idx + 1] << 8) + ext_csd[idx];
- if (mult)
- has_parts = true;
- if (!part_completed)
- continue;
- mmc->capacity_gp[i] = mult;
- mmc->capacity_gp[i] *=
- ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
- mmc->capacity_gp[i] *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
- mmc->capacity_gp[i] <<= 19;
- }
-
- if (part_completed) {
- mmc->enh_user_size =
- (ext_csd[EXT_CSD_ENH_SIZE_MULT+2] << 16) +
- (ext_csd[EXT_CSD_ENH_SIZE_MULT+1] << 8) +
- ext_csd[EXT_CSD_ENH_SIZE_MULT];
- mmc->enh_user_size *= ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
- mmc->enh_user_size *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
- mmc->enh_user_size <<= 19;
- mmc->enh_user_start =
- (ext_csd[EXT_CSD_ENH_START_ADDR+3] << 24) +
- (ext_csd[EXT_CSD_ENH_START_ADDR+2] << 16) +
- (ext_csd[EXT_CSD_ENH_START_ADDR+1] << 8) +
- ext_csd[EXT_CSD_ENH_START_ADDR];
- if (mmc->high_capacity)
- mmc->enh_user_start <<= 9;
- }
-
- /*
- * Host needs to enable ERASE_GRP_DEF bit if device is
- * partitioned. This bit will be lost every time after a reset
- * or power off. This will affect erase size.
- */
- if (part_completed)
- has_parts = true;
- if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) &&
- (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & PART_ENH_ATTRIB))
- has_parts = true;
- if (has_parts) {
- err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_ERASE_GROUP_DEF, 1);
-
- if (err)
- return err;
- else
- ext_csd[EXT_CSD_ERASE_GROUP_DEF] = 1;
- }
-
- if (ext_csd[EXT_CSD_ERASE_GROUP_DEF] & 0x01) {
- /* Read out group size from ext_csd */
- mmc->erase_grp_size =
- ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * 1024;
- /*
- * if high capacity and partition setting completed
- * SEC_COUNT is valid even if it is smaller than 2 GiB
- * JEDEC Standard JESD84-B45, 6.2.4
- */
- if (mmc->high_capacity && part_completed) {
- capacity = (ext_csd[EXT_CSD_SEC_CNT]) |
- (ext_csd[EXT_CSD_SEC_CNT + 1] << 8) |
- (ext_csd[EXT_CSD_SEC_CNT + 2] << 16) |
- (ext_csd[EXT_CSD_SEC_CNT + 3] << 24);
- capacity *= MMC_MAX_BLOCK_LEN;
- mmc->capacity_user = capacity;
- }
- } else {
- /* Calculate the group size from the csd value. */
- int erase_gsz, erase_gmul;
- erase_gsz = (mmc->csd[2] & 0x00007c00) >> 10;
- erase_gmul = (mmc->csd[2] & 0x000003e0) >> 5;
- mmc->erase_grp_size = (erase_gsz + 1)
- * (erase_gmul + 1);
- }
-
- mmc->hc_wp_grp_size = 1024
- * ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]
- * ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
-
- mmc->wr_rel_set = ext_csd[EXT_CSD_WR_REL_SET];
- }
- err = mmc_set_capacity(mmc, mmc_get_blk_desc(mmc)->hwpart);
+ err = mmc_startup_v4(mmc);
if (err)
return err;
- if (IS_SD(mmc))
- err = sd_change_freq(mmc);
- else
- err = mmc_change_freq(mmc);
-
+ err = mmc_set_capacity(mmc, mmc_get_blk_desc(mmc)->hwpart);
if (err)
return err;
- /* Restrict card's capabilities by what the host can do */
- mmc->card_caps &= mmc->cfg->host_caps;
-
if (IS_SD(mmc)) {
- if (mmc->card_caps & MMC_MODE_4BIT) {
- cmd.cmdidx = MMC_CMD_APP_CMD;
- cmd.resp_type = MMC_RSP_R1;
- cmd.cmdarg = mmc->rca << 16;
-
- err = mmc_send_cmd(mmc, &cmd, NULL);
- if (err)
- return err;
-
- cmd.cmdidx = SD_CMD_APP_SET_BUS_WIDTH;
- cmd.resp_type = MMC_RSP_R1;
- cmd.cmdarg = 2;
- err = mmc_send_cmd(mmc, &cmd, NULL);
- if (err)
- return err;
-
- mmc_set_bus_width(mmc, 4);
- }
-
- if (mmc->card_caps & MMC_MODE_HS)
- mmc->tran_speed = 50000000;
- else
- mmc->tran_speed = 25000000;
- } else if (mmc->version >= MMC_VERSION_4) {
- /* Only version 4 of MMC supports wider bus widths */
- int idx;
-
- /* An array of possible bus widths in order of preference */
- static unsigned ext_csd_bits[] = {
- EXT_CSD_DDR_BUS_WIDTH_8,
- EXT_CSD_DDR_BUS_WIDTH_4,
- EXT_CSD_BUS_WIDTH_8,
- EXT_CSD_BUS_WIDTH_4,
- EXT_CSD_BUS_WIDTH_1,
- };
-
- /* An array to map CSD bus widths to host cap bits */
- static unsigned ext_to_hostcaps[] = {
- [EXT_CSD_DDR_BUS_WIDTH_4] =
- MMC_MODE_DDR_52MHz | MMC_MODE_4BIT,
- [EXT_CSD_DDR_BUS_WIDTH_8] =
- MMC_MODE_DDR_52MHz | MMC_MODE_8BIT,
- [EXT_CSD_BUS_WIDTH_4] = MMC_MODE_4BIT,
- [EXT_CSD_BUS_WIDTH_8] = MMC_MODE_8BIT,
- };
-
- /* An array to map chosen bus width to an integer */
- static unsigned widths[] = {
- 8, 4, 8, 4, 1,
- };
-
- for (idx=0; idx < ARRAY_SIZE(ext_csd_bits); idx++) {
- unsigned int extw = ext_csd_bits[idx];
- unsigned int caps = ext_to_hostcaps[extw];
-
- /*
- * If the bus width is still not changed,
- * don't try to set the default again.
- * Otherwise, recover from switch attempts
- * by switching to 1-bit bus width.
- */
- if (extw == EXT_CSD_BUS_WIDTH_1 &&
- mmc->bus_width == 1) {
- err = 0;
- break;
- }
-
- /*
- * Check to make sure the card and controller support
- * these capabilities
- */
- if ((mmc->card_caps & caps) != caps)
- continue;
-
- err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_BUS_WIDTH, extw);
-
- if (err)
- continue;
-
- mmc->ddr_mode = (caps & MMC_MODE_DDR_52MHz) ? 1 : 0;
- mmc_set_bus_width(mmc, widths[idx]);
-
- err = mmc_send_ext_csd(mmc, test_csd);
-
- if (err)
- continue;
-
- /* Only compare read only fields */
- if (ext_csd[EXT_CSD_PARTITIONING_SUPPORT]
- == test_csd[EXT_CSD_PARTITIONING_SUPPORT] &&
- ext_csd[EXT_CSD_HC_WP_GRP_SIZE]
- == test_csd[EXT_CSD_HC_WP_GRP_SIZE] &&
- ext_csd[EXT_CSD_REV]
- == test_csd[EXT_CSD_REV] &&
- ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]
- == test_csd[EXT_CSD_HC_ERASE_GRP_SIZE] &&
- memcmp(&ext_csd[EXT_CSD_SEC_CNT],
- &test_csd[EXT_CSD_SEC_CNT], 4) == 0)
- break;
- else
- err = SWITCH_ERR;
- }
-
+ err = sd_get_capabilities(mmc);
if (err)
return err;
-
- if (mmc->card_caps & MMC_MODE_HS) {
- if (mmc->card_caps & MMC_MODE_HS_52MHz)
- mmc->tran_speed = 52000000;
- else
- mmc->tran_speed = 26000000;
- }
+ err = sd_select_mode_and_width(mmc, mmc->card_caps);
+ } else {
+ err = mmc_get_capabilities(mmc);
+ if (err)
+ return err;
+ mmc_select_mode_and_width(mmc, mmc->card_caps);
}
- mmc_set_clock(mmc, mmc->tran_speed);
+ if (err)
+ return err;
+
+ mmc->best_mode = mmc->selected_mode;
/* Fix the block length for DDR mode */
if (mmc->ddr_mode) {
return err;
if ((cmd.response[0] & 0xff) != 0xaa)
- return UNUSABLE_ERR;
+ return -EOPNOTSUPP;
else
mmc->version = SD_VERSION_2;
return 0;
}
-#ifdef CONFIG_BLK
-int mmc_bind(struct udevice *dev, struct mmc *mmc, const struct mmc_config *cfg)
+#if !CONFIG_IS_ENABLED(DM_MMC)
+/* board-specific MMC power initializations. */
+__weak void board_mmc_power_init(void)
{
- struct blk_desc *bdesc;
- struct udevice *bdev;
- int ret;
-
- ret = blk_create_devicef(dev, "mmc_blk", "blk", IF_TYPE_MMC, -1, 512,
- 0, &bdev);
- if (ret) {
- debug("Cannot create block device\n");
- return ret;
- }
- bdesc = dev_get_uclass_platdata(bdev);
- mmc->cfg = cfg;
- mmc->priv = dev;
-
- /* the following chunk was from mmc_register() */
-
- /* Setup dsr related values */
- mmc->dsr_imp = 0;
- mmc->dsr = 0xffffffff;
- /* Setup the universal parts of the block interface just once */
- bdesc->removable = 1;
-
- /* setup initial part type */
- bdesc->part_type = mmc->cfg->part_type;
- mmc->dev = dev;
-
- return 0;
}
+#endif
-int mmc_unbind(struct udevice *dev)
+static int mmc_power_init(struct mmc *mmc)
{
- struct udevice *bdev;
+#if CONFIG_IS_ENABLED(DM_MMC)
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
+ int ret;
- device_find_first_child(dev, &bdev);
- if (bdev) {
- device_remove(bdev);
- device_unbind(bdev);
- }
+ ret = device_get_supply_regulator(mmc->dev, "vmmc-supply",
+ &mmc->vmmc_supply);
+ if (ret)
+ debug("%s: No vmmc supply\n", mmc->dev->name);
+ ret = device_get_supply_regulator(mmc->dev, "vqmmc-supply",
+ &mmc->vqmmc_supply);
+ if (ret)
+ debug("%s: No vqmmc supply\n", mmc->dev->name);
+#endif
+#else /* !CONFIG_DM_MMC */
+ /*
+ * Driver model should use a regulator, as above, rather than calling
+ * out to board code.
+ */
+ board_mmc_power_init();
+#endif
return 0;
}
-#else
-struct mmc *mmc_create(const struct mmc_config *cfg, void *priv)
+/*
+ * put the host in the initial state:
+ * - turn on Vdd (card power supply)
+ * - configure the bus width and clock to minimal values
+ */
+static void mmc_set_initial_state(struct mmc *mmc)
{
- struct blk_desc *bdesc;
- struct mmc *mmc;
-
- /* quick validation */
- if (cfg == NULL || cfg->ops == NULL || cfg->ops->send_cmd == NULL ||
- cfg->f_min == 0 || cfg->f_max == 0 || cfg->b_max == 0)
- return NULL;
-
- mmc = calloc(1, sizeof(*mmc));
- if (mmc == NULL)
- return NULL;
-
- mmc->cfg = cfg;
- mmc->priv = priv;
+ int err;
- /* the following chunk was mmc_register() */
+ /* First try to set 3.3V. If it fails set to 1.8V */
+ err = mmc_set_signal_voltage(mmc, MMC_SIGNAL_VOLTAGE_330);
+ if (err != 0)
+ err = mmc_set_signal_voltage(mmc, MMC_SIGNAL_VOLTAGE_180);
+ if (err != 0)
+ printf("mmc: failed to set signal voltage\n");
- /* Setup dsr related values */
- mmc->dsr_imp = 0;
- mmc->dsr = 0xffffffff;
- /* 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;
+ mmc_select_mode(mmc, MMC_LEGACY);
+ mmc_set_bus_width(mmc, 1);
+ mmc_set_clock(mmc, 0, false);
+}
- /* setup initial part type */
- bdesc->part_type = mmc->cfg->part_type;
- mmc_list_add(mmc);
+static int mmc_power_on(struct mmc *mmc)
+{
+#if CONFIG_IS_ENABLED(DM_MMC) && CONFIG_IS_ENABLED(DM_REGULATOR)
+ if (mmc->vmmc_supply) {
+ int ret = regulator_set_enable(mmc->vmmc_supply, true);
- return mmc;
+ if (ret) {
+ puts("Error enabling VMMC supply\n");
+ return ret;
+ }
+ }
+#endif
+ return 0;
}
-void mmc_destroy(struct mmc *mmc)
+static int mmc_power_off(struct mmc *mmc)
{
- /* only freeing memory for now */
- free(mmc);
-}
+ mmc_set_clock(mmc, 1, true);
+#if CONFIG_IS_ENABLED(DM_MMC) && CONFIG_IS_ENABLED(DM_REGULATOR)
+ if (mmc->vmmc_supply) {
+ int ret = regulator_set_enable(mmc->vmmc_supply, false);
+
+ if (ret) {
+ debug("Error disabling VMMC supply\n");
+ return ret;
+ }
+ }
#endif
+ return 0;
+}
-#ifndef CONFIG_BLK
-static int mmc_get_dev(int dev, struct blk_desc **descp)
+static int mmc_power_cycle(struct mmc *mmc)
{
- struct mmc *mmc = find_mmc_device(dev);
int ret;
- if (!mmc)
- return -ENODEV;
- ret = mmc_init(mmc);
+ ret = mmc_power_off(mmc);
if (ret)
return ret;
-
- *descp = &mmc->block_dev;
-
- return 0;
-}
-#endif
-
-/* board-specific MMC power initializations. */
-__weak void board_mmc_power_init(void)
-{
+ /*
+ * SD spec recommends at least 1ms of delay. Let's wait for 2ms
+ * to be on the safer side.
+ */
+ udelay(2000);
+ return mmc_power_on(mmc);
}
int mmc_start_init(struct mmc *mmc)
{
+ bool no_card;
+ bool uhs_en = supports_uhs(mmc->cfg->host_caps);
int err;
+ mmc->host_caps = mmc->cfg->host_caps;
+
/* we pretend there's no card when init is NULL */
- if (mmc_getcd(mmc) == 0 || mmc->cfg->ops->init == NULL) {
+ no_card = mmc_getcd(mmc) == 0;
+#if !CONFIG_IS_ENABLED(DM_MMC)
+ no_card = no_card || (mmc->cfg->ops->init == NULL);
+#endif
+ if (no_card) {
mmc->has_init = 0;
#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
printf("MMC: no card present\n");
#endif
- return NO_CARD_ERR;
+ return -ENOMEDIUM;
}
if (mmc->has_init)
#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
mmc_adapter_card_type_ident();
#endif
- board_mmc_power_init();
+ err = mmc_power_init(mmc);
+ if (err)
+ return err;
- /* made sure it's not NULL earlier */
- err = mmc->cfg->ops->init(mmc);
+#ifdef CONFIG_MMC_QUIRKS
+ mmc->quirks = MMC_QUIRK_RETRY_SET_BLOCKLEN |
+ MMC_QUIRK_RETRY_SEND_CID;
+#endif
+ err = mmc_power_cycle(mmc);
+ if (err) {
+ /*
+ * if power cycling is not supported, we should not try
+ * to use the UHS modes, because we wouldn't be able to
+ * recover from an error during the UHS initialization.
+ */
+ debug("Unable to do a full power cycle. Disabling the UHS modes for safety\n");
+ uhs_en = false;
+ mmc->host_caps &= ~UHS_CAPS;
+ err = mmc_power_on(mmc);
+ }
if (err)
return err;
+#if CONFIG_IS_ENABLED(DM_MMC)
+ /* The device has already been probed ready for use */
+#else
+ /* made sure it's not NULL earlier */
+ err = mmc->cfg->ops->init(mmc);
+ if (err)
+ return err;
+#endif
mmc->ddr_mode = 0;
- mmc_set_bus_width(mmc, 1);
- mmc_set_clock(mmc, 1);
+
+retry:
+ mmc_set_initial_state(mmc);
+ mmc_send_init_stream(mmc);
/* Reset the Card */
err = mmc_go_idle(mmc);
err = mmc_send_if_cond(mmc);
/* Now try to get the SD card's operating condition */
- err = sd_send_op_cond(mmc);
+ err = sd_send_op_cond(mmc, uhs_en);
+ if (err && uhs_en) {
+ uhs_en = false;
+ mmc_power_cycle(mmc);
+ goto retry;
+ }
/* If the command timed out, we check for an MMC card */
- if (err == TIMEOUT) {
+ if (err == -ETIMEDOUT) {
err = mmc_send_op_cond(mmc);
if (err) {
#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
printf("Card did not respond to voltage select!\n");
#endif
- return UNUSABLE_ERR;
+ return -EOPNOTSUPP;
}
}
int mmc_init(struct mmc *mmc)
{
int err = 0;
- unsigned start;
-#ifdef CONFIG_DM_MMC
+ __maybe_unused unsigned start;
+#if CONFIG_IS_ENABLED(DM_MMC)
struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc->dev);
upriv->mmc = mmc;
if (!err)
err = mmc_complete_init(mmc);
- debug("%s: %d, time %lu\n", __func__, err, get_timer(start));
+ if (err)
+ printf("%s: %d, time %lu\n", __func__, err, get_timer(start));
+
return err;
}
mmc->preinit = preinit;
}
-#if defined(CONFIG_DM_MMC) && defined(CONFIG_SPL_BUILD)
+#if CONFIG_IS_ENABLED(DM_MMC) && defined(CONFIG_SPL_BUILD)
static int mmc_probe(bd_t *bis)
{
return 0;
}
-#elif defined(CONFIG_DM_MMC)
+#elif CONFIG_IS_ENABLED(DM_MMC)
static int mmc_probe(bd_t *bis)
{
int ret, i;
return 0;
initialized = 1;
-#ifndef CONFIG_BLK
+#if !CONFIG_IS_ENABLED(BLK)
+#if !CONFIG_IS_ENABLED(MMC_TINY)
mmc_list_init();
+#endif
#endif
ret = mmc_probe(bis);
if (ret)
return 0;
}
-#ifdef CONFIG_SUPPORT_EMMC_BOOT
-/*
- * This function changes the size of boot partition and the size of rpmb
- * partition present on EMMC devices.
- *
- * Input Parameters:
- * struct *mmc: pointer for the mmc device strcuture
- * bootsize: size of boot partition
- * rpmbsize: size of rpmb partition
- *
- * Returns 0 on success.
- */
-
-int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize,
- unsigned long rpmbsize)
+#ifdef CONFIG_CMD_BKOPS_ENABLE
+int mmc_set_bkops_enable(struct mmc *mmc)
{
int err;
- struct mmc_cmd cmd;
-
- /* Only use this command for raw EMMC moviNAND. Enter backdoor mode */
- cmd.cmdidx = MMC_CMD_RES_MAN;
- cmd.resp_type = MMC_RSP_R1b;
- cmd.cmdarg = MMC_CMD62_ARG1;
+ ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
- err = mmc_send_cmd(mmc, &cmd, NULL);
+ err = mmc_send_ext_csd(mmc, ext_csd);
if (err) {
- debug("mmc_boot_partition_size_change: Error1 = %d\n", err);
+ puts("Could not get ext_csd register values\n");
return err;
}
- /* Boot partition changing mode */
- cmd.cmdidx = MMC_CMD_RES_MAN;
- cmd.resp_type = MMC_RSP_R1b;
- cmd.cmdarg = MMC_CMD62_ARG2;
-
- err = mmc_send_cmd(mmc, &cmd, NULL);
- if (err) {
- debug("mmc_boot_partition_size_change: Error2 = %d\n", err);
- return err;
+ if (!(ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1)) {
+ puts("Background operations not supported on device\n");
+ return -EMEDIUMTYPE;
}
- /* boot partition size is multiple of 128KB */
- bootsize = (bootsize * 1024) / 128;
-
- /* Arg: boot partition size */
- cmd.cmdidx = MMC_CMD_RES_MAN;
- cmd.resp_type = MMC_RSP_R1b;
- cmd.cmdarg = bootsize;
- err = mmc_send_cmd(mmc, &cmd, NULL);
- if (err) {
- debug("mmc_boot_partition_size_change: Error3 = %d\n", err);
- return err;
+ if (ext_csd[EXT_CSD_BKOPS_EN] & 0x1) {
+ puts("Background operations already enabled\n");
+ return 0;
}
- /* RPMB partition size is multiple of 128KB */
- rpmbsize = (rpmbsize * 1024) / 128;
- /* Arg: RPMB partition size */
- cmd.cmdidx = MMC_CMD_RES_MAN;
- cmd.resp_type = MMC_RSP_R1b;
- cmd.cmdarg = rpmbsize;
- err = mmc_send_cmd(mmc, &cmd, NULL);
+ err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BKOPS_EN, 1);
if (err) {
- debug("mmc_boot_partition_size_change: Error4 = %d\n", err);
+ puts("Failed to enable manual background operations\n");
return err;
}
- return 0;
-}
-/*
- * Modify EXT_CSD[177] which is BOOT_BUS_WIDTH
- * based on the passed in values for BOOT_BUS_WIDTH, RESET_BOOT_BUS_WIDTH
- * and BOOT_MODE.
- *
- * Returns 0 on success.
- */
-int mmc_set_boot_bus_width(struct mmc *mmc, u8 width, u8 reset, u8 mode)
-{
- int err;
-
- err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BOOT_BUS_WIDTH,
- EXT_CSD_BOOT_BUS_WIDTH_MODE(mode) |
- EXT_CSD_BOOT_BUS_WIDTH_RESET(reset) |
- EXT_CSD_BOOT_BUS_WIDTH_WIDTH(width));
+ puts("Enabled manual background operations\n");
- if (err)
- return err;
return 0;
}
-
-/*
- * Modify EXT_CSD[179] which is PARTITION_CONFIG (formerly BOOT_CONFIG)
- * based on the passed in values for BOOT_ACK, BOOT_PARTITION_ENABLE and
- * PARTITION_ACCESS.
- *
- * Returns 0 on success.
- */
-int mmc_set_part_conf(struct mmc *mmc, u8 ack, u8 part_num, u8 access)
-{
- int err;
-
- err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF,
- EXT_CSD_BOOT_ACK(ack) |
- EXT_CSD_BOOT_PART_NUM(part_num) |
- EXT_CSD_PARTITION_ACCESS(access));
-
- if (err)
- return err;
- return 0;
-}
-
-/*
- * Modify EXT_CSD[162] which is RST_n_FUNCTION based on the given value
- * for enable. Note that this is a write-once field for non-zero values.
- *
- * Returns 0 on success.
- */
-int mmc_set_rst_n_function(struct mmc *mmc, u8 enable)
-{
- return mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_RST_N_FUNCTION,
- enable);
-}
-#endif
-
-#ifdef CONFIG_BLK
-static const struct blk_ops mmc_blk_ops = {
- .read = mmc_bread,
- .write = mmc_bwrite,
- .select_hwpart = mmc_select_hwpart,
-};
-
-U_BOOT_DRIVER(mmc_blk) = {
- .name = "mmc_blk",
- .id = UCLASS_BLK,
- .ops = &mmc_blk_ops,
-};
-#else
-U_BOOT_LEGACY_BLK(mmc) = {
- .if_typename = "mmc",
- .if_type = IF_TYPE_MMC,
- .max_devs = -1,
- .get_dev = mmc_get_dev,
- .select_hwpart = mmc_select_hwpartp,
-};
#endif
projects / people / ms / u-boot.git / blobdiff