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Sun, 13 Oct 2024 23:09:35 +0200 (CEST) From: Bean Huo To: avri.altman@wdc.com, ulf.hansson@linaro.org, vfazio@xes-inc.com, linux-mmc@vger.kernel.org Cc: Bean Huo Subject: [RESENT PATCH v3 5/5] mmc-utils: add FFU mode 5 for firmware download using repeated CMD24 command to download FW bundle Date: Sun, 13 Oct 2024 23:09:25 +0200 Message-Id: <20241013210925.123632-6-beanhuo@iokpp.de> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241013210925.123632-1-beanhuo@iokpp.de> References: <20241013210925.123632-1-beanhuo@iokpp.de> Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Bean Huo Add FFU mode 5 which enters FFU mode with CMD6, followed by repeated CMD24 commands to perform single-block writes for the firmware download. After downloading all firmware data, CMD6 is issued to exit FFU mode. Signed-off-by: Bean Huo --- mmc.1 | 3 +++ mmc.c | 5 +++++ mmc_cmds.c | 23 ++++++++++++++++++----- mmc_cmds.h | 1 + 4 files changed, 27 insertions(+), 5 deletions(-) diff --git a/mmc.1 b/mmc.1 index 5e147d7..d478992 100644 --- a/mmc.1 +++ b/mmc.1 @@ -201,6 +201,9 @@ Same as 'ffu', but uses CMD25+CMD12 Open-ended Multiple-block write to download .BI ffu4 " \fIimage\-file\-name\fR " " \fIdevice\fR " " [\fIchunk\-bytes\fR] Same as 'ffu', but uses CMD24 Single-block write to download, exiting FFU mode after each block is written. .TP +.BI ffu5 " \fIimage\-file\-name\fR " " \fIdevice\fR " " [\fIchunk\-bytes\fR] +Same as 'ffu', but uses CMD24 Single-block write for repeated downloads, remaining in FFU mode until completion. +.TP .BI erase " " \fItype\fR " " \fIstart-address\fR " " \fIend\-address\fR " " \fIdevice\fR Send Erase CMD38 with specific argument to the device. .br diff --git a/mmc.c b/mmc.c index fd78f9b..3c74549 100644 --- a/mmc.c +++ b/mmc.c @@ -249,6 +249,11 @@ static struct Command commands[] = { "Same as 'ffu', but uses CMD24 Single-block write to download, exiting FFU mode after each block written.\n", NULL }, + { do_ffu5, -2, + "ffu5", " [chunk-bytes]\n" + "Same as 'ffu', but uses CMD24 Single-block write for repeated downloads, remaining in FFU mode until completion.\n", + NULL + }, { do_erase, -4, "erase", " " " " " " "\n" "Send Erase CMD38 with specific argument to the \n\n" diff --git a/mmc_cmds.c b/mmc_cmds.c index 6290440..bdfaea7 100644 --- a/mmc_cmds.c +++ b/mmc_cmds.c @@ -2844,8 +2844,12 @@ static void set_ffu_download_cmd(struct mmc_ioc_multi_cmd *multi_cmd, __u8 *ext_ set_single_cmd(&multi_cmd->cmds[1], MMC_WRITE_BLOCK, 1, 1, arg); mmc_ioc_cmd_set_data(multi_cmd->cmds[1], buf + offset); fill_switch_cmd(&multi_cmd->cmds[2], EXT_CSD_MODE_CONFIG, EXT_CSD_NORMAL_MODE); + } else if (ffu_mode == 5) { + set_single_cmd(&multi_cmd->cmds[0], MMC_WRITE_BLOCK, 1, 1, arg); + mmc_ioc_cmd_set_data(multi_cmd->cmds[0], buf + offset); } } + static int enter_ffu_mode(int *dev_fd) { int ret; @@ -2933,6 +2937,8 @@ static int do_ffu_download(int *dev_fd, __u8 *ext_csd, __u8 *fw_buf, off_t fw_si num_of_cmds = 2; else if (ffu_mode == 4) num_of_cmds = 3; /* in FFU mode 4, mmc_ioc_multi_cmd contains 3 commands */ + else if (ffu_mode == 5) + num_of_cmds = 1; /* in FFU mode 5, it is single command mode */ /* allocate maximum required */ multi_cmd = calloc(1, sizeof(struct mmc_ioc_multi_cmd) + num_of_cmds * sizeof(struct mmc_ioc_cmd)); @@ -2957,11 +2963,14 @@ do_retry: /* prepare multi_cmd for FFU based on cmd to be used */ set_ffu_download_cmd(multi_cmd, ext_csd, bytes_per_loop, fw_buf, off, ffu_mode); - /* send ioctl with multi-cmd, download firmware bundle */ - ret = ioctl(*dev_fd, MMC_IOC_MULTI_CMD, multi_cmd); + if (num_of_cmds > 1) + /* send ioctl with multi-cmd, download firmware bundle */ + ret = ioctl(*dev_fd, MMC_IOC_MULTI_CMD, multi_cmd); + else + ret = ioctl(*dev_fd, MMC_IOC_CMD, &multi_cmd->cmds[0]); if (ret) { - perror("Multi-cmd ioctl"); + perror("ioctl failed"); /* * In case multi-cmd ioctl failed before exiting from * ffu mode @@ -3075,8 +3084,8 @@ static int __do_ffu(int nargs, char **argv, __u8 ffu_mode) goto out; } - if (ffu_mode ==4) - /* FFU mode 4 uses CMD24, the write is limited to single-block operations*/ + if (ffu_mode ==4 || ffu_mode == 5) + /* FFU mode 4/5 uses CMD24, the write is limited to single-block operations*/ default_chunk = 512; sect_done = do_ffu_download((int *)&dev_fd, ext_csd, fw_buf, fw_size, default_chunk, ffu_mode); @@ -3165,6 +3174,10 @@ int do_ffu4(int nargs, char **argv) { return __do_ffu(nargs, argv, 4); } +int do_ffu5(int nargs, char **argv) { + return __do_ffu(nargs, argv, 5); +} + int do_general_cmd_read(int nargs, char **argv) { int dev_fd; diff --git a/mmc_cmds.h b/mmc_cmds.h index 27dc6c4..d198de8 100644 --- a/mmc_cmds.h +++ b/mmc_cmds.h @@ -45,6 +45,7 @@ int do_ffu(int nargs, char **argv); int do_ffu2(int nargs, char **argv); int do_ffu3(int nargs, char **argv); int do_ffu4(int nargs, char **argv); +int do_ffu5(int nargs, char **argv); int do_read_scr(int argc, char **argv); int do_read_cid(int argc, char **argv); int do_read_csd(int argc, char **argv);