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Mon, 31 Dec 2012 19:36:28 +0900 (KST) Received: from chrome-ubuntu.sisodomain.com ([107.108.73.106]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MFW00JL05G0TP80@mmp1.samsung.com> for u-boot@lists.denx.de; Mon, 31 Dec 2012 19:36:28 +0900 (KST) From: Amar To: u-boot@lists.denx.de, jh80.chung@samsung.com Date: Mon, 31 Dec 2012 05:58:18 -0500 Message-id: <1356951500-22490-8-git-send-email-amarendra.xt@samsung.com> X-Mailer: git-send-email 1.8.0 In-reply-to: <1356951500-22490-1-git-send-email-amarendra.xt@samsung.com> References: <1356951500-22490-1-git-send-email-amarendra.xt@samsung.com> DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrJLMWRmVeSWpSXmKPExsWyRsSkSndN1sMAg653OhZv93ayOzB6nL2z gzGAMYrLJiU1J7MstUjfLoEr4+aq7YwFFzQqLl54y97A+Fihi5GTQ0LAROLZmk4WCFtM4sK9 9WxdjFwcQgJLGSUOHpzGBlO0eNtRFojEIkaJpY0PmEESQgLLmCSWXUntYuTgYBNQlfi12B4k LCJgIDH9yXZWkDCzQIHEs91iIGFhAS+JLa/WgXWyAFUfXvqZDaSEV8BDYspda4hNchIf9jxi B7E5BTwlTm/ZAbXIQ+Jm90J2iFYBiW+TD7GAtEoIyEpsOsAMcpiEwGU2iRW3+5kh5khKHFxx g2UCo/ACRoZVjKKpBckFxUnpuYZ6xYm5xaV56XrJ+bmbGIHhd/rfM6kdjCsbLA4xCnAwKvHw cjE9DBBiTSwrrsw9xCjBwawkwvtWCyjEm5JYWZValB9fVJqTWnyI0QfokonMUqLJ+cDYyCuJ NzQ2MTc1NrU0MjIzNcUhrCTO2+yREiAkkJ5YkpqdmlqQWgQzjomDU6qBcXHKkn0eT734q5jq Z/6IWLXk1EHp51dq5jvtPHGyXsVJ/7ZWwzJ5pxW3jplsdKk2eTDpuPcGr7cpUReP35gm5uTS GyzYPyHHSNtBaYnA46qZ5kG6+18nT5o67eSdF29tvq+Le2Q6RaOv5m4sY0PN0ex4p/eFlc+n ft4wZ6eDmHFUwelVP/I5pyixFGckGmoxFxUnAgCMxThKbAIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupgkeLIzCtJLcpLzFFi42I5/e+xgO6arIcBBrd6pC3e7u1kd2D0OHtn B2MAY1QDo01GamJKapFCal5yfkpmXrqtkndwvHO8qZmBoa6hpYW5kkJeYm6qrZKLT4CuW2YO 0FglhbLEnFKgUEBicbGSvh2mCaEhbroWMI0Rur4hQXA9RgZoIGENY8bNVdsZCy5oVFy88Ja9 gfGxQhcjJ4eEgInE4m1HWSBsMYkL99azdTFycQgJLGKUWNr4gBkkISSwjEli2ZXULkYODjYB VYlfi+1BwiICBhLTn2xnBQkzCxRIPNstBhIWFvCS2PJqHVgnC1D14aWf2UBKeAU8JKbctYbY JCfxYc8jdhCbU8BT4vSWHVCLPCRudi9kn8DIu4CRYRWjaGpBckFxUnquoV5xYm5xaV66XnJ+ 7iZGcHA/k9rBuLLB4hCjAAejEg8vF9PDACHWxLLiytxDjBIczEoivG+1gEK8KYmVValF+fFF pTmpxYcYfYCOmsgsJZqcD4y8vJJ4Q2MTc1NjU0sTCxMzSxzCSuK8zR4pAUIC6YklqdmpqQWp RTDjmDg4pRoYD67/H9Hpkuyfl9RX1PqIPTAqTESdT0n5s7iy8ja10xuOW8+bveh0xf1Uk2Us dX8UjANkSvJUEmOuvZ0xQS/1bRx/4+reE1qfeOX2Wv+Ws3l+pu/EDvu4NnnOqLN8GpPE63U2 Zk74s3pt2cSUJucFvze7rGF6f+uFTHr+lLlzGueqfv2tmmGtxFKckWioxVxUnAgAalBhd5sC AAA= X-CFilter-Loop: Reflected Cc: afleming@gmail.com, patches@linaro.org Subject: [U-Boot] [PATCH V3 7/9] MMC: APIs to support resize of EMMC boot partition X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.11 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de This patch adds APIs to open, close and to resize boot partiton for EMMC. Changes from V1: New patch. Changes from V2: 1)Updation of commit message and resubmition of proper patch set. Signed-off-by: Amar --- drivers/mmc/mmc.c | 118 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ include/mmc.h | 16 ++++++++ 2 files changed, 134 insertions(+) diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 72e8ce6..8175b49 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -1327,3 +1327,121 @@ int mmc_initialize(bd_t *bis) return 0; } + +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; +} + +int mmc_boot_open(struct mmc *mmc) +{ + 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_ENABLE | + EXT_CSD_BOOT_PARTITION_ENABLE | + EXT_CSD_PARTITION_ACCESS_ENABLE) << 8); + + err = mmc_send_cmd(mmc, &cmd, NULL); + if (err) { + debug("mmc_boot_open: Error1 = %d\n", err); + return err; + } + + /* 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_open: Error2 = %d\n", err); + return err; + } + + return 0; +} + +int mmc_boot_close(struct mmc *mmc) +{ + 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_ENABLE | + EXT_CSD_BOOT_PARTITION_ENABLE | + EXT_CSD_PARTITION_ACCESS_DISABLE) << 8); + + err = mmc_send_cmd(mmc, &cmd, NULL); + if (err) { + debug("mmc_boot_close: Error = %d\n", err); + return err; + } + + return 0; +} diff --git a/include/mmc.h b/include/mmc.h index a13e2bd..999f0a3 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -86,6 +86,11 @@ #define MMC_CMD_APP_CMD 55 #define MMC_CMD_SPI_READ_OCR 58 #define MMC_CMD_SPI_CRC_ON_OFF 59 +#define MMC_CMD_RES_MAN 62 + +#define MMC_CMD62_ARG1 0xefac62ec +#define MMC_CMD62_ARG2 0xcbaea7 + #define SD_CMD_SEND_RELATIVE_ADDR 3 #define SD_CMD_SWITCH_FUNC 6 @@ -153,6 +158,7 @@ */ #define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */ #define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */ +#define EXT_CSD_BOOT_BUS_WIDTH 177 #define EXT_CSD_PART_CONF 179 /* R/W */ #define EXT_CSD_BUS_WIDTH 183 /* R/W */ #define EXT_CSD_HS_TIMING 185 /* R/W */ @@ -177,6 +183,12 @@ #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */ #define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */ +#define EXT_CSD_BOOT_ACK_ENABLE (1<<6) +#define EXT_CSD_BOOT_PARTITION_ENABLE (1<<3) +#define EXT_CSD_PARTITION_ACCESS_ENABLE (1<<0) +#define EXT_CSD_PARTITION_ACCESS_DISABLE (0<<0) + + #define R1_ILLEGAL_COMMAND (1 << 22) #define R1_APP_CMD (1 << 5) @@ -275,6 +287,10 @@ int board_mmc_getcd(struct mmc *mmc); int mmc_switch_part(int dev_num, unsigned int part_num); int mmc_getcd(struct mmc *mmc); void spl_mmc_load(void) __noreturn; +int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize, + unsigned long rpmbsize); +int mmc_boot_open(struct mmc *mmc); +int mmc_boot_close(struct mmc *mmc); #ifdef CONFIG_GENERIC_MMC #define mmc_host_is_spi(mmc) ((mmc)->host_caps & MMC_MODE_SPI)