From d3e016cc28684cd32d826a9414a0e89ccf80861a Mon Sep 17 00:00:00 2001 From: Rajeshwari S Shinde Date: Wed, 5 Feb 2014 10:48:15 +0530 Subject: MMC: DWMMC: Correct the CLKDIV register value This patch corrects the divider value written to CLKDIV register. Since SDCLKIN is divided inside controller by the DIVRATIO value set in the CLKSEL register, we need to use the same output clock value to calculate the CLKDIV value. as per user manual: cclk_in = SDCLKIN / (DIVRATIO + 1) Input parameter to mmc_clk is changed to dwmci_host, since we need the same to read DWMCI_CLKSEL register. This improves the read timing values for channel 0 on SMDK5250 from 0.288sec to 0.144sec Signed-off-by: Rajeshwari S Shinde Acked-by: Jaehoon Chung Signed-off-by: Pantelis Antoniou --- include/dwmmc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/dwmmc.h b/include/dwmmc.h index a02dd67c13..b64155851d 100644 --- a/include/dwmmc.h +++ b/include/dwmmc.h @@ -142,7 +142,7 @@ struct dwmci_host { void (*clksel)(struct dwmci_host *host); void (*board_init)(struct dwmci_host *host); - unsigned int (*get_mmc_clk)(int dev_index); + unsigned int (*get_mmc_clk)(struct dwmci_host *host); }; struct dwmci_idmac { -- cgit From 7dbe63bc950bbd12d021f72bf04104688cd324a9 Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Wed, 5 Feb 2014 10:24:18 -0500 Subject: SPL: Add CONFIG_SUPPORT_EMMC_BOOT support to CONFIG_SPL_FRAMEWORK We use the switch CONFIG_SUPPORT_EMMC_BOOT today to enable some additional features of the eMMC boot partitions. Add support for being told that we have booted from one of these partitions to the spl framework and implement this on TI OMAP/related. Cc: Pantelis Antoniou Signed-off-by: Tom Rini Signed-off-by: Pantelis Antoniou --- include/spl.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/spl.h b/include/spl.h index 5e248561f1..dad00c0075 100644 --- a/include/spl.h +++ b/include/spl.h @@ -16,6 +16,7 @@ #define MMCSD_MODE_UNDEFINED 0 #define MMCSD_MODE_RAW 1 #define MMCSD_MODE_FAT 2 +#define MMCSD_MODE_EMMCBOOT 3 struct spl_image_info { const char *name; -- cgit From 792970b0a344d905848fb98564ed469786af11b7 Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Wed, 5 Feb 2014 10:24:21 -0500 Subject: cmd_mmc.c: Add 'partconf' command to mmc 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 Cc: Pantelis Antoniou Acked-by: Jaehoon Chung Signed-off-by: Tom Rini Signed-off-by: Pantelis Antoniou --- include/mmc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/mmc.h b/include/mmc.h index e1060b9ff2..7e026da444 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 -- cgit From 5a99b9de1a845bf254292ae4730633e6ca8a29c7 Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Wed, 5 Feb 2014 10:24:22 -0500 Subject: cmd_mmc.c: Add bootbus mmc sub-command Add a bootbus sub-command to the mmc command to allow for setting the boot_bus_width, reset_boot_bus_width and boot_mode fields of BOOT_BUS_WIDTH (EXT_CSD[177]). Acked-by: Jaehoon Chung Signed-off-by: Tom Rini Signed-off-by: Pantelis Antoniou --- include/mmc.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/mmc.h b/include/mmc.h index 7e026da444..3594286d42 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -187,6 +187,9 @@ #define EXT_CSD_BOOT_PART_NUM(x) (x << 3) #define EXT_CSD_PARTITION_ACCESS(x) (x << 0) +#define EXT_CSD_BOOT_BUS_WIDTH_MODE(x) (x << 3) +#define EXT_CSD_BOOT_BUS_WIDTH_RESET(x) (x << 2) +#define EXT_CSD_BOOT_BUS_WIDTH_WIDTH(x) (x) #define R1_ILLEGAL_COMMAND (1 << 22) #define R1_APP_CMD (1 << 5) @@ -314,6 +317,8 @@ int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize, 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 */ +int mmc_set_boot_bus_width(struct mmc *mmc, u8 width, u8 reset, u8 mode); /** * Start device initialization and return immediately; it does not block on -- cgit From 614b2bf1c9bf80dbad24f5e5ce1d115bf24a831d Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Wed, 5 Feb 2014 10:24:23 -0500 Subject: cmd_mmc.c: Drop open/close mmc sub-commands 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 Cc: Minkyu Kang Acked-by: Jaehoon Chung Signed-off-by: Tom Rini Signed-off-by: Pantelis Antoniou --- include/mmc.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/mmc.h b/include/mmc.h index 3594286d42..e95a2376d2 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 */ -- cgit From 378ec0f8161d12df63016b7ad1e9415b4221b7dc Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Wed, 5 Feb 2014 10:24:24 -0500 Subject: omap5_uevm: Add CONFIG_SUPPORT_EMMC_BOOT, document usage Add a README to the board which lists the commands required to enable booting from the eMMC boot partitions found on the board. Signed-off-by: Tom Rini Signed-off-by: Pantelis Antoniou --- include/configs/omap5_uevm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/configs/omap5_uevm.h b/include/configs/omap5_uevm.h index 76c5106b45..3df502eda0 100644 --- a/include/configs/omap5_uevm.h +++ b/include/configs/omap5_uevm.h @@ -37,6 +37,7 @@ #define CONFIG_PARTITION_UUIDS #define CONFIG_CMD_PART #define CONFIG_HSMMC2_8BIT +#define CONFIG_SUPPORT_EMMC_BOOT /* Required support for the TCA642X GPIO we have on the uEVM */ #define CONFIG_TCA642X -- cgit From b818d9ab8d96471c40ccbd4541a46dfa415eda73 Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Wed, 5 Feb 2014 10:24:25 -0500 Subject: dra7xx_evm: Add CONFIG_SUPPORT_EMMC_BOOT, document usage Add a README to the board which lists the commands required to enable booting from the eMMC boot partitions found on the board. Cc: Lokesh Vutla Signed-off-by: Tom Rini Signed-off-by: Pantelis Antoniou --- include/configs/dra7xx_evm.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/configs/dra7xx_evm.h b/include/configs/dra7xx_evm.h index f210ed8b92..3c53f0af10 100644 --- a/include/configs/dra7xx_evm.h +++ b/include/configs/dra7xx_evm.h @@ -73,6 +73,8 @@ #define CONFIG_SPL_SPI_CS 0 #define CONFIG_SYS_SPI_U_BOOT_OFFS 0x20000 +#define CONFIG_SUPPORT_EMMC_BOOT + /* USB xHCI HOST */ #define CONFIG_CMD_USB #define CONFIG_USB_HOST -- cgit