[U-Boot] [PATCH v3 6/8] cmd_mmc.c: Drop open/close mmc sub-commands
Pantelis Antoniou
pantelis.antoniou at gmail.com
Fri Feb 7 17:08:47 CET 2014
Hi Tom,
On Feb 5, 2014, at 5:24 PM, Tom Rini wrote:
> The open and close mmc sub-commands implement a hard-coded set of values
> specific to the SMDK5250 platform. Remove these commands as what they
> did can be done instead with a series of mmc dev / bootpart / bootbus
> commands instead now.
>
> Cc: Amar <amarendra.xt at samsung.com>
> Cc: Minkyu Kang <mk7.kang at samsung.com>
> Acked-by: Jaehoon Chung <jh80.chung at samsung.com>
> Signed-off-by: Tom Rini <trini at ti.com>
> ---
> common/cmd_mmc.c | 72 -----------------------------------------------------
> drivers/mmc/mmc.c | 65 -----------------------------------------------
> include/mmc.h | 2 --
> 3 files changed, 139 deletions(-)
>
> diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c
> index a028149..2d51927 100644
> --- a/common/cmd_mmc.c
> +++ b/common/cmd_mmc.c
> @@ -131,36 +131,6 @@ U_BOOT_CMD(
> "- display info of the current MMC device"
> );
>
> -#ifdef CONFIG_SUPPORT_EMMC_BOOT
> -static int boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access)
> -{
> - int err;
> - err = mmc_boot_part_access(mmc, ack, part_num, access);
> -
> - if ((err == 0) && (access != 0)) {
> - printf("\t\t\t!!!Notice!!!\n");
> -
> - printf("!You must close EMMC boot Partition");
> - printf("after all images are written\n");
> -
> - printf("!EMMC boot partition has continuity");
> - printf("at image writing time.\n");
> -
> - printf("!So, do not close the boot partition");
> - printf("before all images are written.\n");
> - return 0;
> - } else if ((err == 0) && (access == 0))
> - return 0;
> - else if ((err != 0) && (access != 0)) {
> - printf("EMMC boot partition-%d OPEN Failed.\n", part_num);
> - return 1;
> - } else {
> - printf("EMMC boot partition-%d CLOSE Failed.\n", part_num);
> - return 1;
> - }
> -}
> -#endif
> -
> static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
> {
> enum mmc_state state;
> @@ -273,44 +243,6 @@ static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
>
> return 0;
> #ifdef CONFIG_SUPPORT_EMMC_BOOT
> - } else if ((strcmp(argv[1], "open") == 0) ||
> - (strcmp(argv[1], "close") == 0)) {
> - int dev;
> - struct mmc *mmc;
> - u8 part_num, access = 0;
> -
> - if (argc == 4) {
> - dev = simple_strtoul(argv[2], NULL, 10);
> - part_num = simple_strtoul(argv[3], 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)) {
> - printf("SD device cannot be opened/closed\n");
> - return 1;
> - }
> -
> - if ((part_num <= 0) || (part_num > MMC_NUM_BOOT_PARTITION)) {
> - printf("Invalid boot partition number:\n");
> - printf("Boot partition number cannot be <= 0\n");
> - printf("EMMC44 supports only 2 boot partitions\n");
> - return 1;
> - }
> -
> - if (strcmp(argv[1], "open") == 0)
> - access = part_num; /* enable R/W access to boot part*/
> - else
> - access = 0; /* No access to boot partition */
> -
> - /* 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;
> @@ -498,10 +430,6 @@ U_BOOT_CMD(
> "mmc dev [dev] [part] - show or set current mmc device [partition]\n"
> "mmc list - lists available devices\n"
> #ifdef CONFIG_SUPPORT_EMMC_BOOT
> - "mmc open <dev> <boot_partition>\n"
> - " - Enable boot_part for booting and enable R/W access of boot_part\n"
> - "mmc close <dev> <boot_partition>\n"
> - " - Enable boot_part for booting and disable access to boot_part\n"
> "mmc bootbus dev boot_bus_width reset_boot_bus_width boot_mode\n"
> " - Set the BOOT_BUS_WIDTH field of the specified device\n"
> "mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
> index fc1c1dc..3a57ab8 100644
> --- a/drivers/mmc/mmc.c
> +++ b/drivers/mmc/mmc.c
> @@ -1442,71 +1442,6 @@ int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize,
> }
>
> /*
> - * 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;
> -}
> -
> -/*
> * 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.
> diff --git a/include/mmc.h b/include/mmc.h
> index 3594286..e95a237 100644
> --- a/include/mmc.h
> +++ b/include/mmc.h
> @@ -313,8 +313,6 @@ int mmc_set_dsr(struct mmc *mmc, u16 val);
> /* Function to change the size of boot partition and rpmb partitions */
> 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);
> /* Function to modify the BOOT_BUS_WIDTH field of EXT_CSD */
> --
> 1.7.9.5
Applied. Thanks.
Signed-off-by: Pantelis Antoniou <panto at antoniou-consulting.com>
More information about the U-Boot
mailing list