From c40704f4b13a19a95aa13965c0f1f6a93b5574c0 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sun, 12 Jun 2016 23:30:18 -0600 Subject: mmc: Move MMC boot code into its own file Rather than having an #ifdef in the main mmc.c file, control this feature from the Makefile by moving the code into its own file. Signed-off-by: Simon Glass --- drivers/mmc/mmc.c | 126 +----------------------------------------------------- 1 file changed, 1 insertion(+), 125 deletions(-) (limited to 'drivers/mmc/mmc.c') diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 8085dbbd9db..c850285645b 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -463,8 +463,7 @@ static int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd) 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; @@ -1686,126 +1685,3 @@ int mmc_initialize(bd_t *bis) mmc_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; -} - -/* - * 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)); - - 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 -- cgit v1.2.3