*
* Based vaguely on the Linux code
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <malloc.h>
#include <linux/list.h>
#include <div64.h>
+#include "mmc_private.h"
/* Set block count limit because of 16 bit register limit on some hardware*/
#ifndef CONFIG_SYS_MMC_MAX_BLK_COUNT
static struct list_head mmc_devices;
static int cur_dev_num = -1;
+int __weak board_mmc_getwp(struct mmc *mmc)
+{
+ return -1;
+}
+
+int mmc_getwp(struct mmc *mmc)
+{
+ int wp;
+
+ wp = board_mmc_getwp(mmc);
+
+ if (wp < 0) {
+ if (mmc->getwp)
+ wp = mmc->getwp(mmc);
+ else
+ wp = 0;
+ }
+
+ return wp;
+}
+
int __board_mmc_getcd(struct mmc *mmc) {
return -1;
}
int board_mmc_getcd(struct mmc *mmc)__attribute__((weak,
alias("__board_mmc_getcd")));
-static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
- struct mmc_data *data)
+int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
{
- struct mmc_data backup;
int ret;
- memset(&backup, 0, sizeof(backup));
-
#ifdef CONFIG_MMC_TRACE
int i;
u8 *ptr;
return ret;
}
-static int mmc_send_status(struct mmc *mmc, int timeout)
+int mmc_send_status(struct mmc *mmc, int timeout)
{
struct mmc_cmd cmd;
int err, retries = 5;
MMC_STATE_PRG)
break;
else 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;
}
} else if (--retries < 0)
printf("CURR STATE:%d\n", status);
#endif
if (timeout <= 0) {
+#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
printf("Timeout waiting card ready\n");
+#endif
return TIMEOUT;
}
return 0;
}
-static int mmc_set_blocklen(struct mmc *mmc, int len)
+int mmc_set_blocklen(struct mmc *mmc, int len)
{
struct mmc_cmd cmd;
return m;
}
+#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
printf("MMC Device %d not found\n", dev_num);
+#endif
return NULL;
}
-static ulong mmc_erase_t(struct mmc *mmc, ulong start, lbaint_t blkcnt)
-{
- struct mmc_cmd cmd;
- ulong end;
- int err, start_cmd, end_cmd;
-
- if (mmc->high_capacity)
- end = start + blkcnt - 1;
- else {
- end = (start + blkcnt - 1) * mmc->write_bl_len;
- start *= mmc->write_bl_len;
- }
-
- if (IS_SD(mmc)) {
- start_cmd = SD_CMD_ERASE_WR_BLK_START;
- end_cmd = SD_CMD_ERASE_WR_BLK_END;
- } else {
- start_cmd = MMC_CMD_ERASE_GROUP_START;
- end_cmd = MMC_CMD_ERASE_GROUP_END;
- }
-
- cmd.cmdidx = start_cmd;
- cmd.cmdarg = start;
- cmd.resp_type = MMC_RSP_R1;
-
- err = mmc_send_cmd(mmc, &cmd, NULL);
- if (err)
- goto err_out;
-
- cmd.cmdidx = end_cmd;
- cmd.cmdarg = end;
-
- err = mmc_send_cmd(mmc, &cmd, NULL);
- if (err)
- goto err_out;
-
- cmd.cmdidx = MMC_CMD_ERASE;
- cmd.cmdarg = SECURE_ERASE;
- cmd.resp_type = MMC_RSP_R1b;
-
- err = mmc_send_cmd(mmc, &cmd, NULL);
- if (err)
- goto err_out;
-
- return 0;
-
-err_out:
- puts("mmc erase failed\n");
- return err;
-}
-
-static unsigned long
-mmc_berase(int dev_num, unsigned long start, lbaint_t blkcnt)
-{
- int err = 0;
- struct mmc *mmc = find_mmc_device(dev_num);
- lbaint_t blk = 0, blk_r = 0;
- int timeout = 1000;
-
- if (!mmc)
- return -1;
-
- if ((start % mmc->erase_grp_size) || (blkcnt % mmc->erase_grp_size))
- printf("\n\nCaution! Your devices Erase group is 0x%x\n"
- "The erase range would be change to 0x%lx~0x%lx\n\n",
- mmc->erase_grp_size, start & ~(mmc->erase_grp_size - 1),
- ((start + blkcnt + mmc->erase_grp_size)
- & ~(mmc->erase_grp_size - 1)) - 1);
-
- while (blk < blkcnt) {
- blk_r = ((blkcnt - blk) > mmc->erase_grp_size) ?
- mmc->erase_grp_size : (blkcnt - blk);
- err = mmc_erase_t(mmc, start + blk, blk_r);
- if (err)
- break;
-
- blk += blk_r;
-
- /* Waiting for the ready status */
- if (mmc_send_status(mmc, timeout))
- return 0;
- }
-
- return blk;
-}
-
-static ulong
-mmc_write_blocks(struct mmc *mmc, ulong start, lbaint_t blkcnt, const void*src)
-{
- struct mmc_cmd cmd;
- struct mmc_data data;
- int timeout = 1000;
-
- if ((start + blkcnt) > mmc->block_dev.lba) {
- printf("MMC: block number 0x%lx exceeds max(0x%lx)\n",
- start + blkcnt, mmc->block_dev.lba);
- return 0;
- }
-
- if (blkcnt > 1)
- cmd.cmdidx = MMC_CMD_WRITE_MULTIPLE_BLOCK;
- else
- cmd.cmdidx = MMC_CMD_WRITE_SINGLE_BLOCK;
-
- if (mmc->high_capacity)
- cmd.cmdarg = start;
- else
- cmd.cmdarg = start * mmc->write_bl_len;
-
- cmd.resp_type = MMC_RSP_R1;
-
- data.src = src;
- data.blocks = blkcnt;
- data.blocksize = mmc->write_bl_len;
- data.flags = MMC_DATA_WRITE;
-
- if (mmc_send_cmd(mmc, &cmd, &data)) {
- printf("mmc write failed\n");
- return 0;
- }
-
- /* SPI multiblock writes terminate using a special
- * token, not a STOP_TRANSMISSION request.
- */
- if (!mmc_host_is_spi(mmc) && blkcnt > 1) {
- cmd.cmdidx = MMC_CMD_STOP_TRANSMISSION;
- cmd.cmdarg = 0;
- cmd.resp_type = MMC_RSP_R1b;
- if (mmc_send_cmd(mmc, &cmd, NULL)) {
- printf("mmc fail to send stop cmd\n");
- return 0;
- }
- }
-
- /* Waiting for the ready status */
- if (mmc_send_status(mmc, timeout))
- return 0;
-
- return blkcnt;
-}
-
-static ulong
-mmc_bwrite(int dev_num, ulong start, lbaint_t blkcnt, const void*src)
-{
- lbaint_t cur, blocks_todo = blkcnt;
-
- struct mmc *mmc = find_mmc_device(dev_num);
- if (!mmc)
- return 0;
-
- if (mmc_set_blocklen(mmc, mmc->write_bl_len))
- return 0;
-
- do {
- cur = (blocks_todo > mmc->b_max) ? mmc->b_max : blocks_todo;
- if(mmc_write_blocks(mmc, start, cur, src) != cur)
- return 0;
- blocks_todo -= cur;
- start += cur;
- src += cur * mmc->write_bl_len;
- } while (blocks_todo > 0);
-
- return blkcnt;
-}
-
-static int mmc_read_blocks(struct mmc *mmc, void *dst, ulong start,
+static int mmc_read_blocks(struct mmc *mmc, void *dst, lbaint_t start,
lbaint_t blkcnt)
{
struct mmc_cmd cmd;
cmd.cmdarg = 0;
cmd.resp_type = MMC_RSP_R1b;
if (mmc_send_cmd(mmc, &cmd, NULL)) {
+#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
printf("mmc fail to send stop cmd\n");
+#endif
return 0;
}
}
return blkcnt;
}
-static ulong mmc_bread(int dev_num, ulong start, lbaint_t blkcnt, void *dst)
+static ulong mmc_bread(int dev_num, lbaint_t start, lbaint_t blkcnt, void *dst)
{
lbaint_t cur, blocks_todo = blkcnt;
return 0;
if ((start + blkcnt) > mmc->block_dev.lba) {
- printf("MMC: block number 0x%lx exceeds max(0x%lx)\n",
+#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
+ printf("MMC: block number 0x" LBAF " exceeds max(0x" LBAF ")\n",
start + blkcnt, mmc->block_dev.lba);
+#endif
return 0;
}
return 0;
}
-static int mmc_send_op_cond(struct mmc *mmc)
+/* We pass in the cmd since otherwise the init seems to fail */
+static int mmc_send_op_cond_iter(struct mmc *mmc, struct mmc_cmd *cmd,
+ int use_arg)
{
- int timeout = 10000;
- struct mmc_cmd cmd;
int err;
+ cmd->cmdidx = MMC_CMD_SEND_OP_COND;
+ cmd->resp_type = MMC_RSP_R3;
+ cmd->cmdarg = 0;
+ if (use_arg && !mmc_host_is_spi(mmc)) {
+ cmd->cmdarg =
+ (mmc->voltages &
+ (mmc->op_cond_response & OCR_VOLTAGE_MASK)) |
+ (mmc->op_cond_response & OCR_ACCESS_MODE);
+
+ if (mmc->host_caps & MMC_MODE_HC)
+ cmd->cmdarg |= OCR_HCS;
+ }
+ err = mmc_send_cmd(mmc, cmd, NULL);
+ if (err)
+ return err;
+ mmc->op_cond_response = cmd->response[0];
+ return 0;
+}
+
+int mmc_send_op_cond(struct mmc *mmc)
+{
+ struct mmc_cmd cmd;
+ int err, i;
+
/* Some cards seem to need this */
mmc_go_idle(mmc);
/* Asking to the card its capabilities */
- cmd.cmdidx = MMC_CMD_SEND_OP_COND;
- cmd.resp_type = MMC_RSP_R3;
- cmd.cmdarg = 0;
-
- err = mmc_send_cmd(mmc, &cmd, NULL);
+ mmc->op_cond_pending = 1;
+ for (i = 0; i < 2; i++) {
+ err = mmc_send_op_cond_iter(mmc, &cmd, i != 0);
+ if (err)
+ return err;
- if (err)
- return err;
+ /* exit if not busy (flag seems to be inverted) */
+ if (mmc->op_cond_response & OCR_BUSY)
+ return 0;
+ }
+ return IN_PROGRESS;
+}
- udelay(1000);
+int mmc_complete_op_cond(struct mmc *mmc)
+{
+ struct mmc_cmd cmd;
+ int timeout = 1000;
+ uint start;
+ int err;
+ mmc->op_cond_pending = 0;
+ start = get_timer(0);
do {
- cmd.cmdidx = MMC_CMD_SEND_OP_COND;
- cmd.resp_type = MMC_RSP_R3;
- cmd.cmdarg = (mmc_host_is_spi(mmc) ? 0 :
- (mmc->voltages &
- (cmd.response[0] & OCR_VOLTAGE_MASK)) |
- (cmd.response[0] & OCR_ACCESS_MODE));
-
- if (mmc->host_caps & MMC_MODE_HC)
- cmd.cmdarg |= OCR_HCS;
-
- err = mmc_send_cmd(mmc, &cmd, NULL);
-
+ err = mmc_send_op_cond_iter(mmc, &cmd, 1);
if (err)
return err;
-
- udelay(1000);
- } while (!(cmd.response[0] & OCR_BUSY) && timeout--);
-
- if (timeout <= 0)
- return UNUSABLE_ERR;
+ if (get_timer(start) > timeout)
+ return UNUSABLE_ERR;
+ udelay(100);
+ } while (!(mmc->op_cond_response & OCR_BUSY));
if (mmc_host_is_spi(mmc)) { /* read OCR for spi */
cmd.cmdidx = MMC_CMD_SPI_READ_OCR;
data.dest = (char *)ext_csd;
data.blocks = 1;
- data.blocksize = 512;
+ data.blocksize = MMC_MAX_BLOCK_LEN;
data.flags = MMC_DATA_READ;
err = mmc_send_cmd(mmc, &cmd, &data);
static int mmc_change_freq(struct mmc *mmc)
{
- ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, 512);
+ ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
char cardtype;
int err;
return 0;
}
+static int mmc_set_capacity(struct mmc *mmc, int part_num)
+{
+ switch (part_num) {
+ case 0:
+ mmc->capacity = mmc->capacity_user;
+ break;
+ case 1:
+ case 2:
+ mmc->capacity = mmc->capacity_boot;
+ break;
+ case 3:
+ mmc->capacity = mmc->capacity_rpmb;
+ break;
+ case 4:
+ case 5:
+ case 6:
+ case 7:
+ mmc->capacity = mmc->capacity_gp[part_num - 4];
+ break;
+ default:
+ return -1;
+ }
+
+ mmc->block_dev.lba = lldiv(mmc->capacity, mmc->read_bl_len);
+
+ return 0;
+}
+
int mmc_switch_part(int dev_num, unsigned int part_num)
{
struct mmc *mmc = find_mmc_device(dev_num);
+ int ret;
if (!mmc)
return -1;
- return mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF,
- (mmc->part_config & ~PART_ACCESS_MASK)
- | (part_num & PART_ACCESS_MASK));
+ ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF,
+ (mmc->part_config & ~PART_ACCESS_MASK)
+ | (part_num & PART_ACCESS_MASK));
+ if (ret)
+ return ret;
+
+ return mmc_set_capacity(mmc, part_num);
}
int mmc_getcd(struct mmc *mmc)
cd = board_mmc_getcd(mmc);
- if ((cd < 0) && mmc->getcd)
- cd = mmc->getcd(mmc);
+ if (cd < 0) {
+ if (mmc->getcd)
+ cd = mmc->getcd(mmc);
+ else
+ cd = 1;
+ }
return cd;
}
break;
case 2:
mmc->version = SD_VERSION_2;
+ if ((mmc->scr[0] >> 15) & 0x1)
+ mmc->version = SD_VERSION_3;
break;
default:
mmc->version = SD_VERSION_1_0;
static int mmc_startup(struct mmc *mmc)
{
- int err;
+ int err, i;
uint mult, freq;
u64 cmult, csize, capacity;
struct mmc_cmd cmd;
- ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, 512);
- ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, 512);
+ 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;
#ifdef CONFIG_MMC_SPI_CRC_ON
cmult = (mmc->csd[2] & 0x00038000) >> 15;
}
- mmc->capacity = (csize + 1) << (cmult + 2);
- mmc->capacity *= mmc->read_bl_len;
+ mmc->capacity_user = (csize + 1) << (cmult + 2);
+ mmc->capacity_user *= mmc->read_bl_len;
+ mmc->capacity_boot = 0;
+ mmc->capacity_rpmb = 0;
+ for (i = 0; i < 4; i++)
+ mmc->capacity_gp[i] = 0;
- if (mmc->read_bl_len > 512)
- mmc->read_bl_len = 512;
+ if (mmc->read_bl_len > MMC_MAX_BLOCK_LEN)
+ mmc->read_bl_len = MMC_MAX_BLOCK_LEN;
- if (mmc->write_bl_len > 512)
- mmc->write_bl_len = 512;
+ if (mmc->write_bl_len > MMC_MAX_BLOCK_LEN)
+ mmc->write_bl_len = MMC_MAX_BLOCK_LEN;
/* Select the card, and put it into Transfer Mode */
if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */
| 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 *= 512;
+ capacity *= MMC_MAX_BLOCK_LEN;
if ((capacity >> 20) > 2 * 1024)
- mmc->capacity = capacity;
+ 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;
}
/*
* group size from ext_csd directly, or calculate
* the group size from the csd value.
*/
- if (ext_csd[EXT_CSD_ERASE_GROUP_DEF])
+ if (ext_csd[EXT_CSD_ERASE_GROUP_DEF]) {
mmc->erase_grp_size =
- ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * 512 * 1024;
- else {
+ ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] *
+ MMC_MAX_BLOCK_LEN * 1024;
+ } else {
int erase_gsz, erase_gmul;
erase_gsz = (mmc->csd[2] & 0x00007c00) >> 10;
erase_gmul = (mmc->csd[2] & 0x000003e0) >> 5;
if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) ||
ext_csd[EXT_CSD_BOOT_MULT])
mmc->part_config = ext_csd[EXT_CSD_PART_CONF];
+
+ 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;
+ mmc->capacity_gp[i] = (ext_csd[idx + 2] << 16) +
+ (ext_csd[idx + 1] << 8) + ext_csd[idx];
+ mmc->capacity_gp[i] *=
+ ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
+ mmc->capacity_gp[i] *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
+ }
}
+ err = mmc_set_capacity(mmc, mmc->part_num);
+ if (err)
+ return err;
+
if (IS_SD(mmc))
err = sd_change_freq(mmc);
else
mmc->block_dev.lun = 0;
mmc->block_dev.type = 0;
mmc->block_dev.blksz = mmc->read_bl_len;
+ mmc->block_dev.log2blksz = LOG2(mmc->block_dev.blksz);
mmc->block_dev.lba = lldiv(mmc->capacity, mmc->read_bl_len);
+#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
sprintf(mmc->block_dev.vendor, "Man %06x Snr %04x%04x",
mmc->cid[0] >> 24, (mmc->cid[2] & 0xffff),
(mmc->cid[3] >> 16) & 0xffff);
(mmc->cid[2] >> 24) & 0xff);
sprintf(mmc->block_dev.revision, "%d.%d", (mmc->cid[2] >> 20) & 0xf,
(mmc->cid[2] >> 16) & 0xf);
+#else
+ mmc->block_dev.vendor[0] = 0;
+ mmc->block_dev.product[0] = 0;
+ mmc->block_dev.revision[0] = 0;
+#endif
#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBDISK_SUPPORT)
init_part(&mmc->block_dev);
#endif
}
#endif
-int mmc_init(struct mmc *mmc)
+int mmc_start_init(struct mmc *mmc)
{
int err;
if (mmc_getcd(mmc) == 0) {
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;
}
if (err == TIMEOUT) {
err = mmc_send_op_cond(mmc);
- if (err) {
+ if (err && err != IN_PROGRESS) {
+#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
printf("Card did not respond to voltage select!\n");
+#endif
return UNUSABLE_ERR;
}
}
- err = mmc_startup(mmc);
+ if (err == IN_PROGRESS)
+ mmc->init_in_progress = 1;
+
+ return err;
+}
+
+static int mmc_complete_init(struct mmc *mmc)
+{
+ int err = 0;
+
+ if (mmc->op_cond_pending)
+ err = mmc_complete_op_cond(mmc);
+
+ if (!err)
+ err = mmc_startup(mmc);
if (err)
mmc->has_init = 0;
else
mmc->has_init = 1;
+ mmc->init_in_progress = 0;
+ return err;
+}
+
+int mmc_init(struct mmc *mmc)
+{
+ int err = IN_PROGRESS;
+ unsigned start = get_timer(0);
+
+ if (mmc->has_init)
+ return 0;
+ if (!mmc->init_in_progress)
+ err = mmc_start_init(mmc);
+
+ if (!err || err == IN_PROGRESS)
+ err = mmc_complete_init(mmc);
+ debug("%s: %d, time %lu\n", __func__, err, get_timer(start));
return err;
}
int cpu_mmc_init(bd_t *bis) __attribute__((weak, alias("__def_mmc_init")));
int board_mmc_init(bd_t *bis) __attribute__((weak, alias("__def_mmc_init")));
+#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
+
void print_mmc_devices(char separator)
{
struct mmc *m;
printf("\n");
}
+#else
+void print_mmc_devices(char separator) { }
+#endif
+
int get_mmc_num(void)
{
return cur_dev_num;
}
+void mmc_set_preinit(struct mmc *mmc, int preinit)
+{
+ mmc->preinit = preinit;
+}
+
+static void do_preinit(void)
+{
+ struct mmc *m;
+ struct list_head *entry;
+
+ list_for_each(entry, &mmc_devices) {
+ m = list_entry(entry, struct mmc, link);
+
+ if (m->preinit)
+ mmc_start_init(m);
+ }
+}
+
+
int mmc_initialize(bd_t *bis)
{
INIT_LIST_HEAD (&mmc_devices);
if (board_mmc_init(bis) < 0)
cpu_mmc_init(bis);
+#ifndef CONFIG_SPL_BUILD
print_mmc_devices(',');
+#endif
+ do_preinit();
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)
+{
+ 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;
+
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+ if (err) {
+ debug("mmc_boot_partition_size_change: Error1 = %d\n", err);
+ 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;
+ }
+ /* 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;
+ }
+ /* 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);
+ if (err) {
+ debug("mmc_boot_partition_size_change: Error4 = %d\n", err);
+ return err;
+ }
+ return 0;
+}
+
+/*
+ * This function shall form and send the commands to open / close the
+ * boot partition specified by user.
+ *
+ * Input Parameters:
+ * ack: 0x0 - No boot acknowledge sent (default)
+ * 0x1 - Boot acknowledge sent during boot operation
+ * part_num: User selects boot data that will be sent to master
+ * 0x0 - Device not boot enabled (default)
+ * 0x1 - Boot partition 1 enabled for boot
+ * 0x2 - Boot partition 2 enabled for boot
+ * access: User selects partitions to access
+ * 0x0 : No access to boot partition (default)
+ * 0x1 : R/W boot partition 1
+ * 0x2 : R/W boot partition 2
+ * 0x3 : R/W Replay Protected Memory Block (RPMB)
+ *
+ * Returns 0 on success.
+ */
+int mmc_boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access)
+{
+ int err;
+ struct mmc_cmd cmd;
+
+ /* Boot ack enable, boot partition enable , boot partition access */
+ cmd.cmdidx = MMC_CMD_SWITCH;
+ cmd.resp_type = MMC_RSP_R1b;
+
+ cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
+ (EXT_CSD_PART_CONF << 16) |
+ ((EXT_CSD_BOOT_ACK(ack) |
+ EXT_CSD_BOOT_PART_NUM(part_num) |
+ EXT_CSD_PARTITION_ACCESS(access)) << 8);
+
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+ if (err) {
+ if (access) {
+ debug("mmc boot partition#%d open fail:Error1 = %d\n",
+ part_num, err);
+ } else {
+ debug("mmc boot partition#%d close fail:Error = %d\n",
+ part_num, err);
+ }
+ return err;
+ }
+
+ if (access) {
+ /* 4bit transfer mode at booting time. */
+ cmd.cmdidx = MMC_CMD_SWITCH;
+ cmd.resp_type = MMC_RSP_R1b;
+
+ cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
+ (EXT_CSD_BOOT_BUS_WIDTH << 16) |
+ ((1 << 0) << 8);
+
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+ if (err) {
+ debug("mmc boot partition#%d open fail:Error2 = %d\n",
+ part_num, err);
+ return err;
+ }
+ }
+ return 0;
+}
+#endif
projects / karo-tx-uboot.git / blobdiff