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[203.254.224.25]) by mx.google.com with ESMTP id s8si12922516pac.87.2013.04.26.23.09.18 for ; Fri, 26 Apr 2013 23:09:19 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of amarendra.xt@samsung.com designates 203.254.224.25 as permitted sender) client-ip=203.254.224.25; Received: from epcpsbgr5.samsung.com (u145.gpu120.samsung.co.kr [203.254.230.145]) by mailout2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0MLW00H4XH30ZJA0@mailout2.samsung.com>; Sat, 27 Apr 2013 15:09:18 +0900 (KST) Received: from epcpsbgm2.samsung.com ( [172.20.52.126]) by epcpsbgr5.samsung.com (EPCPMTA) with SMTP id C0.66.19350.D8B6B715; Sat, 27 Apr 2013 15:09:17 +0900 (KST) X-AuditID: cbfee691-b7fe56d000004b96-97-517b6b8ddd62 Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id 71.7D.01422.D8B6B715; Sat, 27 Apr 2013 15:09:17 +0900 (KST) Received: from amarendra-desktop.sisodomain.com ([107.108.73.18]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MLW00DPDH2TOT50@mmp2.samsung.com>; Sat, 27 Apr 2013 15:09:17 +0900 (KST) From: amar_g To: u-boot@lists.denx.de, jh80.chung@samsung.com Cc: patches@linaro.org, sjg@chromium.org, mk7.kang@samsung.com, chander.kashyap@linaro.org, afleming@gmail.com, hs@denx.de, Amar Subject: [PATCH V9 7/9] MMC: APIs to support resize of EMMC boot partition Date: Sat, 27 Apr 2013 11:42:58 +0530 Message-id: <1367043180-6756-8-git-send-email-amarendra.xt@samsung.com> X-Mailer: git-send-email 1.7.3.rc2 In-reply-to: <1367043180-6756-1-git-send-email-amarendra.xt@samsung.com> References: <1367043180-6756-1-git-send-email-amarendra.xt@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmplkeLIzCtJLcpLzFFi42JZI2JSp9ubXR1o8HyLmcWN6z/ZLL4s6GS3 eLj+JovFjjv3mS1u/Gpjteg40sJoMeXwFxaLb1u2MVq83dvJ7sDpMbvhIovHvFknWDx2zrrL 7nHn2h42j7N3djB69G1ZxRjAFsVlk5Kak1mWWqRvl8CVcXbrU6aC9ZYVnV8SGhjP63YxcnJI CJhI9HQeZoOwxSQu3FsPZgsJLGWU2PWPD6bmxsdGli5GLqD4dEaJqSuaoZwJTBJt+xrAOtgE 1CWefFrLCmKLCBhITH+ynRWkiFlgPqPE4m+P2EESwgJeEuf2ngQrYhFQldi5fR7QJA4OXgF3 ie1r8iC2KUmc3/garIRTwEPi343PzBAXuUvsmzYVbKaEwDZ2ieZjjewQcwQkvk0+BDZHQkBW YtMBZog5khIHV9xgmcAovICRYRWjaGpBckFxUnqRqV5xYm5xaV66XnJ+7iZGYBSc/vds4g7G +wesDzEmA42byCwlmpwPjKK8knhDYzMjC1MTU2Mjc0sz0oSVxHnVW6wDhQTSE0tSs1NTC1KL 4otKc1KLDzEycXBKNTDqHc1+UP2ePU6zcQ3fvy0vEr7bbz0RGuHEYGdyuD+kv/aqhAp7csgm z00z2y717F12+P05lgWdJ6ckKVwONjoSsdbIYsIb+VUZnHs+3NSf6XV16wudhXwqRyc8mJMj zCu1/avZpFY/7l/GG3P5Xj7kvZnum/NzdtDR9VILWOOvmi6du/0aj/BiJZbijERDLeai4kQA q0y74ZgCAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrMIsWRmVeSWpSXmKPExsVy+t9jQd3e7OpAgz3NOhY3rv9ks/iyoJPd 4uH6mywWO+7cZ7a48auN1aLjSAujxZTDX1gsvm3Zxmjxdm8nuwOnx+yGiywe82adYPHYOesu u8eda3vYPM7e2cHo0bdlFWMAW1QDo01GamJKapFCal5yfkpmXrqtkndwvHO8qZmBoa6hpYW5 kkJeYm6qrZKLT4CuW2YO0F1KCmWJOaVAoYDE4mIlfTtME0JD3HQtYBojdH1DguB6jAzQQMIa xoyzW58yFay3rOj8ktDAeF63i5GTQ0LAROLGx0YWCFtM4sK99WxdjFwcQgLTGSWmrmhmgXAm MEm07WtgA6liE1CXePJpLSuILSJgIDH9yXZWkCJmgfmMEou/PWIHSQgLeEmc23sSrIhFQFVi 5/Z5QJM4OHgF3CW2r8mD2KYkcX7ja7ASTgEPiX83PjOD2EJAJfumTWWdwMi7gJFhFaNoakFy QXFSeq6RXnFibnFpXrpecn7uJkZwlD2T3sG4qsHiEKMAB6MSD6/GoqpAIdbEsuLK3EOMEhzM SiK8iqnVgUK8KYmVValF+fFFpTmpxYcYk4GOmsgsJZqcD0wAeSXxhsYm5qbGppYmFiZmlqQJ K4nzHmy1DhQSSE8sSc1OTS1ILYLZwsTBKdXAGHqfR+SYdSNz+pmS479PrGJ51XqHe/nvk4Yn ClacuWbhuPRVX/ntKWpte4paGlLs62XNRX+wPFfi/mbyYhfH3LSlK4Wdzxm2+CttXJByZ5HT 1qS1Vsevz/36TnPTFZleS08/sUl/c5yLUxa5/ZearnUwcvouvp8G9loprF2T8s6Wqk3aunVj phJLcUaioRZzUXEiAEeTJT/2AgAA DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-Gm-Message-State: ALoCoQl1zJILuXu2jrHlo+/3QOr5o/KZenBDkbCq2EbnoOgEc/vpJ8AnmdaHI5ZsTs/kG7zuuB+N X-Original-Sender: patch@linaro.org X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 2607:f8b0:400c:c02::232 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Precedence: list Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org List-ID: X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , From: Amar This patch adds APIs to access(open / close) and to resize boot partiton of EMMC. Signed-off-by: Amar --- Changes since V1: New patch. Changes since V2: 1)Updation of commit message and resubmition of proper patch set. Changes since V3: No change. Changes since V4: 1)Replaced the functions mmc_boot_open() & mmc_boot_close() with a single function mmc_boot_part_access(). Changes since V5: 1)Updated in response to review comments. Changes since V6: 1)Added spaces around << operator, in response to review comments. Changes since V7: 1)In the file drivers/mmc/mmc.c, the piece of code involved in open/close and resize of EMMC boot partition has been made conditional and is enabled only if the macro CONFIG_SUPPORT_EMMC_BOOT is defined. Changes since V8: 1)Changed type of input parameters from u32 to u8 for the function mmc_boot_part_access(). --- drivers/mmc/mmc.c | 134 +++++++++++++++++++++++++++++++++++++++++++++++++++++ include/mmc.h | 26 ++++++++++ 2 files changed, 160 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index d732581..954d7cd 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -1352,3 +1352,137 @@ int mmc_initialize(bd_t *bis) 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 --git a/include/mmc.h b/include/mmc.h index de6d497..af680cd 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 +183,16 @@ #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 EXT_CSD_BOOT_ACK(x) (x << 6) +#define EXT_CSD_BOOT_PART_NUM(x) (x << 3) +#define EXT_CSD_PARTITION_ACCESS(x) (x << 0) + + #define R1_ILLEGAL_COMMAND (1 << 22) #define R1_APP_CMD (1 << 5) @@ -201,6 +217,11 @@ #define PART_ACCESS_MASK (0x7) #define PART_SUPPORT (0x1) +/* The number of MMC physical partitions. These consist of: + * boot partitions (2), general purpose partitions (4) in MMC v4.4. + */ +#define MMC_NUM_BOOT_PARTITION 2 + struct mmc_cid { unsigned long psn; unsigned short oid; @@ -277,6 +298,11 @@ int mmc_switch_part(int dev_num, unsigned int part_num); 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); #ifdef CONFIG_GENERIC_MMC #define mmc_host_is_spi(mmc) ((mmc)->host_caps & MMC_MODE_SPI)