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Sun, 13 Oct 2024 22:58:22 +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: [PATCH v3 4/5] mmc-utils: Added FFU mode 4 that uses CMD6 and CMD24 for single-block firmware download Date: Sun, 13 Oct 2024 22:58:06 +0200 Message-Id: <20241013205807.121932-5-beanhuo@iokpp.de> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241013205807.121932-1-beanhuo@iokpp.de> References: <20241013205807.121932-1-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 FFU mode 4 initiates firmware download with CMD6 to enter FFU mode, followed by CMD24 for single-block write. After each block is written, CMD6 is used to exit FFU mode. Signed-off-by: Bean Huo --- mmc.1 | 3 +++ mmc.c | 5 +++++ mmc_cmds.c | 17 ++++++++++++++++- mmc_cmds.h | 1 + 4 files changed, 25 insertions(+), 1 deletion(-) diff --git a/mmc.1 b/mmc.1 index d1598f7..5e147d7 100644 --- a/mmc.1 +++ b/mmc.1 @@ -198,6 +198,9 @@ Same as 'ffu', but uses CMD23+CMD25 for repeated downloads and remains in FFU mo .BI ffu3 " \fIimage\-file\-name\fR " " \fIdevice\fR " " [\fIchunk\-bytes\fR] Same as 'ffu', but uses CMD25+CMD12 Open-ended Multiple-block write to download and remains in FFU mode until completion. .TP +.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 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 a0227ca..fd78f9b 100644 --- a/mmc.c +++ b/mmc.c @@ -244,6 +244,11 @@ static struct Command commands[] = { "Same as 'ffu', but uses CMD25+CMD12 Open-ended Multiple-block write to download and remains in FFU mode until completion.\n", NULL }, + { do_ffu4, -2, + "ffu4", " [chunk-bytes]\n" + "Same as 'ffu', but uses CMD24 Single-block write to download, exiting FFU mode after each block written.\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 6c38387..6290440 100644 --- a/mmc_cmds.c +++ b/mmc_cmds.c @@ -2839,6 +2839,11 @@ static void set_ffu_download_cmd(struct mmc_ioc_multi_cmd *multi_cmd, __u8 *ext_ mmc_ioc_cmd_set_data(multi_cmd->cmds[0], buf + offset); set_single_cmd(&multi_cmd->cmds[1], MMC_STOP_TRANSMISSION, 0, 0, 0); multi_cmd->cmds[1].flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC; + } else if (ffu_mode == 4) { + fill_switch_cmd(&multi_cmd->cmds[0], EXT_CSD_MODE_CONFIG, EXT_CSD_FFU_MODE); + 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); } } static int enter_ffu_mode(int *dev_fd) @@ -2924,8 +2929,10 @@ static int do_ffu_download(int *dev_fd, __u8 *ext_csd, __u8 *fw_buf, off_t fw_si return -EINVAL; } - if (ffu_mode != 1) /* in FFU mode 1, mmc_ioc_multi_cmd contains 4 commands */ + if (ffu_mode == 2 || ffu_mode == 3) /* in FFU mode 2, 3, mmc_ioc_multi_cmd contains 2 commands */ num_of_cmds = 2; + else if (ffu_mode == 4) + num_of_cmds = 3; /* in FFU mode 4, mmc_ioc_multi_cmd contains 3 commands */ /* allocate maximum required */ multi_cmd = calloc(1, sizeof(struct mmc_ioc_multi_cmd) + num_of_cmds * sizeof(struct mmc_ioc_cmd)); @@ -3068,6 +3075,10 @@ 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*/ + default_chunk = 512; + sect_done = do_ffu_download((int *)&dev_fd, ext_csd, fw_buf, fw_size, default_chunk, ffu_mode); /* Check programmed sectors */ @@ -3150,6 +3161,10 @@ int do_ffu3(int nargs, char **argv) { return __do_ffu(nargs, argv, 3); } +int do_ffu4(int nargs, char **argv) { + return __do_ffu(nargs, argv, 4); +} + int do_general_cmd_read(int nargs, char **argv) { int dev_fd; diff --git a/mmc_cmds.h b/mmc_cmds.h index e3e9192..27dc6c4 100644 --- a/mmc_cmds.h +++ b/mmc_cmds.h @@ -44,6 +44,7 @@ int do_cache_dis(int nargs, char **argv); 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_read_scr(int argc, char **argv); int do_read_cid(int argc, char **argv); int do_read_csd(int argc, char **argv);