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-rw-r--r--common/cmd_mmc.c131
-rw-r--r--drivers/mmc/mmc.c151
-rw-r--r--include/configs/mx51_bbg.h33
-rw-r--r--include/mmc.h26
4 files changed, 307 insertions, 34 deletions
diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c
index 421482e..b8d494b 100644
--- a/common/cmd_mmc.c
+++ b/common/cmd_mmc.c
@@ -112,6 +112,48 @@ static void print_mmcinfo(struct mmc *mmc)
printf("Capacity: %lld\n", mmc->capacity);
printf("Bus Width: %d-bit\n", mmc->bus_width);
+#ifdef CONFIG_BOOT_PARTITION_ACCESS
+ if (mmc->boot_size_mult == 0) {
+ printf("Boot Partition Size: %s\n", "No boot partition available");
+ } else {
+ printf("Boot Partition Size: %5dKB\n", mmc->boot_size_mult * 128);
+
+ printf("Current Partition for boot: ");
+ switch (mmc->boot_config & EXT_CSD_BOOT_PARTITION_ENABLE_MASK) {
+ case EXT_CSD_BOOT_PARTITION_DISABLE:
+ printf("Not bootable\n");
+ break;
+ case EXT_CSD_BOOT_PARTITION_PART1:
+ printf("Boot partition 1\n");
+ break;
+ case EXT_CSD_BOOT_PARTITION_PART2:
+ printf("Boot partition 2\n");
+ break;
+ case EXT_CSD_BOOT_PARTITION_USER:
+ printf("User area\n");
+ break;
+ default:
+ printf("Unknown\n");
+ break;
+ }
+
+ printf("Current Partition for read/write: ");
+ switch (mmc->boot_config & EXT_CSD_BOOT_PARTITION_ACCESS_MASK) {
+ case EXT_CSD_BOOT_PARTITION_ACCESS_DISABLE:
+ printf("User Area\n");
+ break;
+ case EXT_CSD_BOOT_PARTITION_ACCESS_PART1:
+ printf("Boot partition 1\n");
+ break;
+ case EXT_CSD_BOOT_PARTITION_ACCESS_PART2:
+ printf("Boot partition 2\n");
+ break;
+ default:
+ printf("Unknown\n");
+ break;
+ }
+ }
+#endif
}
int do_mmcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
@@ -144,6 +186,9 @@ U_BOOT_CMD(mmcinfo, 2, 0, do_mmcinfo,
int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
int rc = 0;
+#ifdef CONFIG_BOOT_PARTITION_ACCESS
+ u32 part = 0;
+#endif
switch (argc) {
case 3:
@@ -171,6 +216,10 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
return 0;
}
return 1;
+#ifdef CONFIG_BOOT_PARTITION_ACCESS
+ case 6: /* Fall through */
+ part = simple_strtoul(argv[6], NULL, 10);
+#endif
default: /* at least 5 args */
if (strcmp(argv[1], "read") == 0) {
int dev = simple_strtoul(argv[2], NULL, 10);
@@ -178,6 +227,7 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
u32 cnt = simple_strtoul(argv[5], NULL, 16);
u32 n;
u32 blk = simple_strtoul(argv[4], NULL, 16);
+
struct mmc *mmc = find_mmc_device(dev);
if (!mmc)
@@ -188,11 +238,44 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
mmc_init(mmc);
+#ifdef CONFIG_BOOT_PARTITION_ACCESS
+ /* After mmc_init, we now know whether this is a eSD/eMMC which support boot partition */
+ if (part > 0) {
+ if (IS_SD(mmc)) {
+ if (sd_switch_partition(mmc, 1) < 0) {
+ printf("\nError: Fail to switch partition to %d before reading\n", 1);
+ return 1;
+ }
+ } else {
+ if (mmc_switch_partition(mmc, part) < 0) {
+ printf("\nError: Fail to switch partition to %d before reading\n", part);
+ return 1;
+ }
+ }
+ }
+#endif
+
n = mmc->block_dev.block_read(dev, blk, cnt, addr);
/* flush cache after read */
flush_cache((ulong)addr, cnt * 512); /* FIXME */
+#ifdef CONFIG_BOOT_PARTITION_ACCESS
+ /* Switch back */
+ if (part > 0) {
+ if (IS_SD(mmc)) {
+ if (sd_switch_partition(mmc, 0) < 0) {
+ printf("\nError: Fail to switch partition back!\n");
+ return 1;
+ }
+ } else {
+ if (mmc_switch_partition(mmc, 0) < 0) {
+ printf("\nError: Fail to switch partition back!\n");
+ return 1;
+ }
+ }
+ }
+#endif
printf("%d blocks read: %s\n",
n, (n==cnt) ? "OK" : "ERROR");
return (n == cnt) ? 0 : 1;
@@ -201,6 +284,7 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
u32 cnt = simple_strtoul(argv[5], NULL, 16);
u32 n;
+
struct mmc *mmc = find_mmc_device(dev);
int blk = simple_strtoul(argv[4], NULL, 16);
@@ -213,8 +297,42 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
mmc_init(mmc);
+#ifdef CONFIG_BOOT_PARTITION_ACCESS
+ /* After mmc_init, we now know whether this is a eSD/eMMC which support boot partition */
+ if (part > 0) {
+ if (IS_SD(mmc)) {
+ if (sd_switch_partition(mmc, 1) < 0) {
+ printf("\nError: Fail to switch partition to %d before writing\n", 1);
+ return 1;
+ }
+ } else {
+ if (mmc_switch_partition(mmc, part) < 0) {
+ printf("\nError: Fail to switch partition to %d before writing\n", part);
+ return 1;
+ }
+ }
+ }
+#endif
+
n = mmc->block_dev.block_write(dev, blk, cnt, addr);
+#ifdef CONFIG_BOOT_PARTITION_ACCESS
+ /* Switch back */
+ if (part > 0) {
+ if (IS_SD(mmc)) {
+ if (sd_switch_partition(mmc, 0) < 0) {
+ printf("\nError: Fail to switch partition back!\n");
+ return 1;
+ }
+ } else {
+ if (mmc_switch_partition(mmc, 0) < 0) {
+ printf("\nError: Fail to switch partition back!\n");
+ return 1;
+ }
+ }
+ }
+#endif
+
printf("%d blocks written: %s\n",
n, (n == cnt) ? "OK" : "ERROR");
return (n == cnt) ? 0 : 1;
@@ -227,11 +345,22 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
}
}
+#ifndef CONFIG_BOOT_PARTITION_ACCESS
U_BOOT_CMD(
mmc, 6, 1, do_mmcops,
"MMC sub system",
- "read <device num> addr blk# cnt\n"
+ "mmc read <device num> addr blk# cnt\n"
"mmc write <device num> addr blk# cnt\n"
"mmc rescan <device num>\n"
"mmc list - lists available devices");
+#else
+U_BOOT_CMD(
+ mmc, 7, 1, do_mmcops,
+ "MMC sub system",
+ "mmc read <device num> addr blk# cnt [partition]\n"
+ "mmc write <device num> addr blk# cnt [partition]\n"
+ "mmc rescan <device num>\n"
+ "mmc list - lists available devices");
+#endif
#endif
+
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index f78b8a8..422c6ed 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1,5 +1,5 @@
/*
- * (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
+ * (C) Copyright 2008-2010 Freescale Semiconductor, Inc.
* Terry Lv
*
* Copyright 2008, Freescale Semiconductor, Inc
@@ -646,6 +646,149 @@ void mmc_set_bus_width(struct mmc *mmc, uint width)
mmc_set_ios(mmc);
}
+#ifdef CONFIG_BOOT_PARTITION_ACCESS
+/* Return 0/1/2 for partition id before switch; Return -1 if fail to switch */
+int mmc_switch_partition(struct mmc *mmc, uint part)
+{
+ char *ext_csd;
+ int err;
+ uint old_part, new_part;
+ char boot_config;
+
+ /* partition must be -
+ 0 - user area
+ 1 - boot partition 1
+ 2 - boot partition 2
+ */
+ if (part > 2) {
+ printf("\nWrong partition id - 0 (user area), 1 (boot1), 2 (boot2)\n");
+ return 1;
+ }
+
+ /* Before calling this func, "mmc" struct must have been initialized */
+ if (mmc->version < MMC_VERSION_4) {
+ puts("Error: invalid mmc version! mmc version is below version 4!");
+ return -1;
+ }
+
+ if (mmc->boot_size_mult <= 0) {
+ /* it's a normal SD/MMC but user request to boot partition */
+ printf("\nError: This is a normal SD/MMC card but you request to access boot partition\n");
+ return -1;
+ }
+
+ /* part must be 0 (user area), 1 (boot partition1) or 2 (boot partition2) */
+ if (part > 2) {
+ puts("Error: partition id must be 0(user area), 1(boot partition1) or 2(boot partition2)\n");
+ return -1;
+ }
+
+ if (IS_SD(mmc)) {
+ /* eSD card hadn't been supported. Return directly without warning */
+ return -1;
+ }
+
+ ext_csd = (char *)malloc(512);
+ if (!ext_csd) {
+ puts("Error: Could not allocate buffer for MMC ext csd!\n");
+ return -1;
+ }
+
+ err = mmc_send_ext_csd(mmc, ext_csd);
+ if (err) {
+ puts("Warning: fail to get ext csd for MMC!\n");
+ goto err_rtn;
+ }
+
+ old_part = ext_csd[EXT_CSD_BOOT_CONFIG] & EXT_CSD_BOOT_PARTITION_ACCESS_MASK;
+
+ /* Send SWITCH command to change partition for access */
+ boot_config = (ext_csd[EXT_CSD_BOOT_CONFIG] & ~EXT_CSD_BOOT_PARTITION_ACCESS_MASK) | (char)part;
+
+ err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BOOT_CONFIG, boot_config);
+ if (err) {
+ puts("Error: fail to send SWITCH command to card to swich partition for access!\n");
+ goto err_rtn;
+ }
+
+ /* Now check whether it works */
+ err = mmc_send_ext_csd(mmc, ext_csd);
+ if (err) {
+ puts("Warning: fail to get ext csd for MMC!\n");
+ goto err_rtn;
+ }
+
+ new_part = ext_csd[EXT_CSD_BOOT_CONFIG] & EXT_CSD_BOOT_PARTITION_ACCESS_MASK;
+ if ((char)part != new_part) {
+ printf("Warning: after SWITCH, current part id %d is not same as requested partition %d!\n",
+ new_part, part);
+ goto err_rtn;
+ }
+
+ /* Seems everything is ok, return the partition id before switch */
+ free(ext_csd);
+ return old_part;
+
+err_rtn:
+ free(ext_csd);
+ return -1;
+}
+
+int sd_switch_partition(struct mmc *mmc, uint part)
+{
+ struct mmc_cmd cmd;
+ int err;
+
+ if (part > 1) {
+ printf("\nWrong partition id - 0 (user area), 1 (boot1)\n");
+ return 1;
+ }
+
+ cmd.cmdidx = SD_CMD_SELECT_PARTITION;
+ cmd.resp_type = MMC_RSP_R1;
+ cmd.cmdarg = part << 24;
+ cmd.flags = 0;
+
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+
+ if (err) {
+ printf("Failed to switch to partition %d\nPartition not exists or command execute fail!\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+int mmc_get_cur_boot_partition(struct mmc *mmc)
+{
+ char *ext_csd;
+ int err;
+
+ ext_csd = (char *)malloc(512);
+
+ if (!ext_csd) {
+ puts("Error! Could not allocate buffer for MMC ext csd!\n");
+ return -1;
+ }
+
+ err = mmc_send_ext_csd(mmc, ext_csd);
+
+ if (err) {
+ mmc->boot_config = 0;
+ mmc->boot_size_mult = 0;
+ /* continue since it's not a fatal error */
+ } else {
+ mmc->boot_config = ext_csd[EXT_CSD_BOOT_CONFIG];
+ mmc->boot_size_mult = ext_csd[EXT_CSD_BOOT_INFO];
+ }
+
+ free(ext_csd);
+
+ return err;
+}
+
+#endif
+
int mmc_startup(struct mmc *mmc)
{
int err;
@@ -819,6 +962,7 @@ int mmc_startup(struct mmc *mmc)
mmc_set_clock(mmc, 50000000);
else
mmc_set_clock(mmc, 25000000);
+
} else {
if (mmc->card_caps & MMC_MODE_4BIT) {
/* Set the card to use 4 bit*/
@@ -849,6 +993,10 @@ int mmc_startup(struct mmc *mmc)
mmc_set_clock(mmc, 26000000);
} else
mmc_set_clock(mmc, 20000000);
+
+#ifdef CONFIG_BOOT_PARTITION_ACCESS
+ mmc_get_cur_boot_partition(mmc);
+#endif
}
/* fill in device description */
@@ -1009,3 +1157,4 @@ int mmc_initialize(bd_t *bis)
return 0;
}
+
diff --git a/include/configs/mx51_bbg.h b/include/configs/mx51_bbg.h
index f773563..b2961a2 100644
--- a/include/configs/mx51_bbg.h
+++ b/include/configs/mx51_bbg.h
@@ -69,36 +69,6 @@
#define CONFIG_MX51_UART 1
#define CONFIG_MX51_UART1 1
-/*
- * SPI Configs
- * */
-#define CONFIG_FSL_SF 1
-#define CONFIG_SPI_FLASH_IMX_ATMEL 1
-#define CONFIG_SPI_FLASH_CS 1
-#define CONFIG_IMX_ECSPI
-#define CONFIG_IMX_SPI_PMIC
-#define CONFIG_IMX_SPI_PMIC_CS 0
-#define IMX_CSPI_VER_2_3 1
-#define MAX_SPI_BYTES (64 * 4)
-
-/*
- * MMC Configs
- * */
-
-/*
- * Eth Configs
- */
-#define CONFIG_HAS_ETH1
-#define CONFIG_NET_MULTI 1
-#define CONFIG_MXC_FEC
-#define CONFIG_MII
-#define CONFIG_DISCOVER_PHY
-
-#define CONFIG_FEC0_IOBASE FEC_BASE_ADDR
-#define CONFIG_FEC0_PINMUX -1
-#define CONFIG_FEC0_PHY_ADDR 0x1F
-#define CONFIG_FEC0_MIIBASE -1
-
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
#define CONFIG_CONS_INDEX 1
@@ -133,7 +103,8 @@
#define CONFIG_FSL_SF 1
#define CONFIG_SPI_FLASH_IMX_ATMEL 1
#define CONFIG_SPI_FLASH_CS 1
- #define CONFIG_IMX_SPI
+ #define CONFIG_IMX_ECSPI
+ #define IMX_CSPI_VER_2_3 1
#define CONFIG_IMX_SPI_PMIC
#define CONFIG_IMX_SPI_PMIC_CS 0
diff --git a/include/mmc.h b/include/mmc.h
index 2dc69ab..fe63ed7 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -1,5 +1,7 @@
/*
- * Copyright 2008, Freescale Semiconductor, Inc
+ * (C) Copyright 2009-2010 Freescale Semiconductor, Inc.
+ *
+ * Copyright 2008-2010, Freescale Semiconductor, Inc
* Andy Fleming
*
* Based (loosely) on the Linux code
@@ -79,6 +81,7 @@
#define SD_CMD_SEND_RELATIVE_ADDR 3
#define SD_CMD_SWITCH_FUNC 6
#define SD_CMD_SEND_IF_COND 8
+#define SD_CMD_SELECT_PARTITION 43
#define SD_CMD_APP_SET_BUS_WIDTH 6
#define SD_CMD_APP_SEND_OP_COND 41
@@ -128,11 +131,13 @@
* EXT_CSD fields
*/
+#define EXT_CSD_BOOT_CONFIG 179 /* RW */
#define EXT_CSD_BUS_WIDTH 183 /* R/W */
#define EXT_CSD_HS_TIMING 185 /* R/W */
#define EXT_CSD_CARD_TYPE 196 /* RO */
#define EXT_CSD_REV 192 /* RO */
#define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
+#define EXT_CSD_BOOT_INFO 228 /* RO */
/*
* EXT_CSD field definitions
@@ -149,6 +154,17 @@
#define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */
#define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */
+#define EXT_CSD_BOOT_PARTITION_ENABLE_MASK (0x7 << 3)
+#define EXT_CSD_BOOT_PARTITION_DISABLE (0x0)
+#define EXT_CSD_BOOT_PARTITION_PART1 (0x1 << 3)
+#define EXT_CSD_BOOT_PARTITION_PART2 (0x2 << 3)
+#define EXT_CSD_BOOT_PARTITION_USER (0x7 << 3)
+
+#define EXT_CSD_BOOT_PARTITION_ACCESS_MASK (0x7)
+#define EXT_CSD_BOOT_PARTITION_ACCESS_DISABLE (0x0)
+#define EXT_CSD_BOOT_PARTITION_ACCESS_PART1 (0x1)
+#define EXT_CSD_BOOT_PARTITION_ACCESS_PART2 (0x2)
+
#define R1_ILLEGAL_COMMAND (1 << 22)
#define R1_APP_CMD (1 << 5)
@@ -259,6 +275,10 @@ struct mmc {
uint read_bl_len;
uint write_bl_len;
u64 capacity;
+#ifdef CONFIG_BOOT_PARTITION_ACCESS
+ uint boot_config;
+ uint boot_size_mult;
+#endif
block_dev_desc_t block_dev;
int (*send_cmd)(struct mmc *mmc,
struct mmc_cmd *cmd, struct mmc_data *data);
@@ -272,6 +292,10 @@ int mmc_init(struct mmc *mmc);
int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size);
struct mmc *find_mmc_device(int dev_num);
void print_mmc_devices(char separator);
+#ifdef CONFIG_BOOT_PARTITION_ACCESS
+int mmc_switch_partition(struct mmc *mmc, uint part);
+int sd_switch_partition(struct mmc *mmc, uint part);
+#endif
#ifndef CONFIG_GENERIC_MMC
int mmc_legacy_init(int verbose);
generated by cgit v1.1 at 2024-11-19 13:11:15 +0000