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mmc-utils: Add FFU optional mode 4 for firmware download using repeated CMD24 single-block write command
Add FFU mode 4 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 <beanhuo@micron.com> Acked-by: Avri Altman <avri.altman@wdc.com> Message-ID: <20241025203454.162710-6-beanhuo@iokpp.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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3
mmc.1
3
mmc.1
@ -201,6 +201,9 @@ Optional FFU mode 2, uses CMD25+CMD12 Open-ended Multiple-block write to downloa
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.BI opt_ffu3 " \fIimage\-file\-name\fR " " \fIdevice\fR " " [\fIchunk\-bytes\fR]
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Optional FFU mode 3, uses CMD24 Single-block write for downloading, exiting FFU mode after each block is written.
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.TP
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.BI opt_ffu4 " \fIimage\-file\-name\fR " " \fIdevice\fR " " [\fIchunk\-bytes\fR]
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Optional FFU mode 4, uses CMD24 Single-block write for repeated downloads, remaining in FFU mode until completion.
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.TP
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.BI erase " " \fItype\fR " " \fIstart-address\fR " " \fIend\-address\fR " " \fIdevice\fR
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Send Erase CMD38 with specific argument to the device.
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.br
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5
mmc.c
5
mmc.c
@ -249,6 +249,11 @@ static struct Command commands[] = {
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"Optional FFU mode 3, uses CMD24 Single-block write for downloading, exiting FFU mode after each block written.\n",
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NULL
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},
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{ do_opt_ffu4, -2,
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"opt_ffu4", "<image name> <device> [chunk-bytes]\n"
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"Optional FFU mode 4, uses CMD24 Single-block write for repeated downloads, remaining in FFU mode until completion.\n",
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NULL
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},
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{ do_erase, -4,
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"erase", "<type> " "<start address> " "<end address> " "<device>\n"
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"Send Erase CMD38 with specific argument to the <device>\n\n"
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36
mmc_cmds.c
36
mmc_cmds.c
@ -65,7 +65,8 @@ enum ffu_download_mode {
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FFU_DEFAULT_MODE, // Default mode: Uses CMD23+CMD25; exits FFU mode after each loop.
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FFU_OPT_MODE1, // Optional mode 1: Uses CMD23+CMD25; but stays in FFU mode during download.
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FFU_OPT_MODE2, // Optional mode 2: Uses CMD25+CMD12 Open-ended Multiple-block write to download
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FFU_OPT_MODE3 // Optional mode 3: Uses CMD24 Single-block write to download
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FFU_OPT_MODE3, // Optional mode 3: Uses CMD24 Single-block write to download
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FFU_OPT_MODE4 // Optional mode 4: Uses CMD24 Single-block write to download, but stays in FFU mode during download.
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};
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static inline __u32 per_byte_htole32(__u8 *arr)
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@ -2866,6 +2867,9 @@ static void set_ffu_download_cmd(struct mmc_ioc_multi_cmd *multi_cmd,
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set_single_cmd(&multi_cmd->cmds[1], MMC_WRITE_BLOCK, 1, 1, arg);
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mmc_ioc_cmd_set_data(multi_cmd->cmds[1], buf + offset);
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fill_switch_cmd(&multi_cmd->cmds[2], EXT_CSD_MODE_CONFIG, EXT_CSD_NORMAL_MODE);
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} else if (ffu_mode == FFU_OPT_MODE4) {
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set_single_cmd(&multi_cmd->cmds[0], MMC_WRITE_BLOCK, 1, 1, arg);
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mmc_ioc_cmd_set_data(multi_cmd->cmds[0], buf + offset);
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}
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}
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@ -2973,6 +2977,9 @@ static int do_ffu_download(int dev_fd, __u8 *ext_csd, __u8 *fw_buf, off_t fw_siz
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} else if (ffu_mode == FFU_OPT_MODE3) {
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num_of_cmds = 3; /* in FFU_OPT_MODE3, mmc_ioc_multi_cmd contains 3 commands */
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chunk_size = 512; /* FFU_OPT_MODE3 uses CMD24 single-block write */
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} else if (ffu_mode == FFU_OPT_MODE4) {
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num_of_cmds = 1; /* in FFU_OPT_MODE4, it is single command mode */
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chunk_size = 512; /* FFU_OPT_MODE4 uses CMD24 single-block write */
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}
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/* allocate maximum required */
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@ -2983,10 +2990,11 @@ static int do_ffu_download(int dev_fd, __u8 *ext_csd, __u8 *fw_buf, off_t fw_siz
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return -ENOMEM;
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}
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if (ffu_mode == FFU_OPT_MODE1 || ffu_mode == FFU_OPT_MODE2) {
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if (ffu_mode == FFU_OPT_MODE1 || ffu_mode == FFU_OPT_MODE2 || ffu_mode == FFU_OPT_MODE4) {
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/*
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* In FFU_OPT_MODE1 and FFU_OPT_MODE2, the command to enter FFU mode will be sent
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* independently, separate from the firmware bundle download command.
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* In FFU_OPT_MODE1, FFU_OPT_MODE2 and FFU_OPT_MODE4, the command to enter FFU
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* mode will be sent independently, separate from the firmware bundle download
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* command.
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*/
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ret = enter_ffu_mode(dev_fd);
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if (ret)
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@ -3004,11 +3012,14 @@ do_retry:
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/* prepare multi_cmd for FFU based on cmd to be used */
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set_ffu_download_cmd(multi_cmd, ext_csd, bytes_per_loop, fw_buf, off, ffu_mode);
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/* send ioctl with multi-cmd, download firmware bundle */
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ret = ioctl(dev_fd, MMC_IOC_MULTI_CMD, multi_cmd);
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if (num_of_cmds > 1)
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/* send ioctl with multi-cmd, download firmware bundle */
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ret = ioctl(dev_fd, MMC_IOC_MULTI_CMD, multi_cmd);
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else
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ret = ioctl(dev_fd, MMC_IOC_CMD, &multi_cmd->cmds[0]);
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if (ret) {
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perror("Multi-cmd ioctl");
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perror("ioctl failed");
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/*
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* In case multi-cmd ioctl failed before exiting from
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* ffu mode
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@ -3040,10 +3051,10 @@ do_retry:
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off += bytes_per_loop;
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}
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if (ffu_mode == FFU_OPT_MODE1 || ffu_mode == FFU_OPT_MODE2) {
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if (ffu_mode == FFU_OPT_MODE1 || ffu_mode == FFU_OPT_MODE2 || ffu_mode == FFU_OPT_MODE4) {
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/*
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* In FFU_OPT_MODE1 and FFU_OPT_MODE2, the command to exit FFU mode will be sent
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* independently, separate from the firmware bundle download command.
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* In FFU_OPT_MODE1, FFU_OPT_MODE2 and FFU_OPT_MODE4, the command to exit FFU mode
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* will be sent independently, separate from the firmware bundle download command.
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*/
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ret = exit_ffu_mode(dev_fd);
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if (ret)
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@ -3233,6 +3244,11 @@ int do_opt_ffu3(int nargs, char **argv)
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return __do_ffu(nargs, argv, FFU_OPT_MODE3);
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}
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int do_opt_ffu4(int nargs, char **argv)
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{
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return __do_ffu(nargs, argv, FFU_OPT_MODE4);
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}
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int do_general_cmd_read(int nargs, char **argv)
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{
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int dev_fd;
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@ -45,6 +45,7 @@ int do_ffu(int nargs, char **argv);
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int do_opt_ffu1(int nargs, char **argv);
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int do_opt_ffu2(int nargs, char **argv);
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int do_opt_ffu3(int nargs, char **argv);
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int do_opt_ffu4(int nargs, char **argv);
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int do_read_scr(int argc, char **argv);
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int do_read_cid(int argc, char **argv);
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int do_read_csd(int argc, char **argv);
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