From: Albert ARIBAUD Date: Wed, 19 Jun 2013 10:53:59 +0000 (+0200) Subject: Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master' X-Git-Tag: v2013.07-rc2~60^2~10 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=69f14dc2fd64307f012381dd333a06001dec75dc;p=u-boot Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master' Conflicts: spl/Makefile --- 69f14dc2fd64307f012381dd333a06001dec75dc diff --cc drivers/mmc/mmc.c index 0a2f5358e2,9c0652d9ab..a492bbb41f --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@@ -1444,6 -1372,139 +1444,140 @@@ int mmc_initialize(bd_t *bis print_mmc_devices(','); + 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 diff --cc include/mmc.h index 566db59ac9,21d0937d5c..f88f672f11 --- a/include/mmc.h +++ b/include/mmc.h @@@ -291,32 -307,12 +312,37 @@@ int mmc_switch_part(int dev_num, unsign int mmc_getcd(struct mmc *mmc); int mmc_getwp(struct mmc *mmc); void spl_mmc_load(void) __noreturn; + /* 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); +/** + * Start device initialization and return immediately; it does not block on + * polling OCR (operation condition register) status. Then you should call + * mmc_init, which would block on polling OCR status and complete the device + * initializatin. + * + * @param mmc Pointer to a MMC device struct + * @return 0 on success, IN_PROGRESS on waiting for OCR status, <0 on error. + */ +int mmc_start_init(struct mmc *mmc); + +/** + * Set preinit flag of mmc device. + * + * This will cause the device to be pre-inited during mmc_initialize(), + * which may save boot time if the device is not accessed until later. + * Some eMMC devices take 200-300ms to init, but unfortunately they + * must be sent a series of commands to even get them to start preparing + * for operation. + * + * @param mmc Pointer to a MMC device struct + * @param preinit preinit flag value + */ +void mmc_set_preinit(struct mmc *mmc, int preinit); + #ifdef CONFIG_GENERIC_MMC #define mmc_host_is_spi(mmc) ((mmc)->host_caps & MMC_MODE_SPI) struct mmc *mmc_spi_init(uint bus, uint cs, uint speed, uint mode);