Hi Tom,
On Feb 5, 2014, at 5:24 PM, Tom Rini wrote:
Add a partconf sub-command to the mmc command to allow for setting the boot_ack, boot_partition and partition_access fields of PARTITION_CONFIG (formerly BOOT_CONFIG, EXT_CSD[179]). Part of this requires changing the check for 'part' from an strncmp to a strcmp, like the rest of the sub-commands.
Cc: Andy Fleming afleming@gmail.com Cc: Pantelis Antoniou panto@antoniou-consulting.com Acked-by: Jaehoon Chung jh80.chung@samsung.com Signed-off-by: Tom Rini trini@ti.com
common/cmd_mmc.c | 30 +++++++++++++++++++++++++++++- drivers/mmc/mmc.c | 21 +++++++++++++++++++++ include/mmc.h | 2 ++ 3 files changed, 52 insertions(+), 1 deletion(-)
diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c index a322063..5842e85 100644 --- a/common/cmd_mmc.c +++ b/common/cmd_mmc.c @@ -195,7 +195,7 @@ static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 1; else return 0;
- } else if (strncmp(argv[1], "part", 4) == 0) {
- } else if (strcmp(argv[1], "part") == 0) { block_dev_desc_t *mmc_dev; struct mmc *mmc;
@@ -311,7 +311,33 @@ static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
/* acknowledge to be sent during boot operation */ return boot_part_access(mmc, 1, part_num, access);
} else if (strcmp(argv[1], "partconf") == 0) {
int dev;struct mmc *mmc;u8 ack, part_num, access;if (argc == 6) {dev = simple_strtoul(argv[2], NULL, 10);ack = simple_strtoul(argv[3], NULL, 10);part_num = simple_strtoul(argv[4], NULL, 10);access = simple_strtoul(argv[5], NULL, 10);} else {return CMD_RET_USAGE;}mmc = find_mmc_device(dev);if (!mmc) {printf("no mmc device at slot %x\n", dev);return 1;}if (IS_SD(mmc)) {puts("PARTITION_CONFIG only exists on eMMC\n");return 1;}/* acknowledge to be sent during boot operation */return mmc_set_part_conf(mmc, ack, part_num, access);} else if (strcmp(argv[1], "bootpart-resize") == 0) { int dev; struct mmc *mmc;
@@ -451,6 +477,8 @@ U_BOOT_CMD( " - Enable boot_part for booting and disable access to boot_part\n" "mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n" " - Change sizes of boot and RPMB partitions of specified device\n"
- "mmc partconf dev boot_ack boot_partition partition_access\n"
- " - Change the bits of the PARTITION_CONFIG field of the specified device\n"
#endif "mmc setdsr - set DSR register value\n" ); diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index c6a1c23..1591fce 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -1505,4 +1505,25 @@ int mmc_boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access) } 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;
+} #endif diff --git a/include/mmc.h b/include/mmc.h index e1060b9..7e026da 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -312,6 +312,8 @@ int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize, unsigned long rpmbsize); /* Function to send commands to open/close the specified boot partition */ int mmc_boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access); +/* Function to modify the PARTITION_CONFIG field of EXT_CSD */ +int mmc_set_part_conf(struct mmc *mmc, u8 ack, u8 part_num, u8 access);
/**
- Start device initialization and return immediately; it does not block on
-- 1.7.9.5
Applied. Thanks.
Signed-off-by: Pantelis Antoniou panto@antoniou-consulting.com