Please send your patch in the appropriate format,
So it can be reviewed.
Thanks,
Avri
>
>
> mmc.h
> 36a37,45
> > #define MMC_ERASE_GROUP_START 35 /* ac [31:0] data addr R1 */
> > #define MMC_ERASE_GROUP_END 36 /* ac [31:0] data addr R1 */
> > #define MMC_ERASE 38 /* ac [31] Secure request
> > [30:16] set to 0 > [15] Force
> Garbage Collect request4 > [14:2] set to 0
> > [1] Discard Enable > [0]
> Identify Write Blocks for Erase (or TRIM Enable) > R1b */
>
> mmc_cmds.h
> 33a34
> > int do_erase(int nargs, char **argv);
>
> mmc_cmds.c
> 226a227,291
> > int erase(int fd, __u32 argin, __u32 start, __u32 end) > { > int ret = 0;
> > struct mmc_ioc_cmd idata;
> > __u32 response;
> >
> > // Set Start address
> > memset(&idata, 0, sizeof(idata));
> > idata.opcode = MMC_ERASE_GROUP_START;
> > idata.arg = start;
> > idata.flags = MMC_RSP_R1 | MMC_CMD_AC;
> > ret = ioctl(fd, MMC_IOC_CMD, &idata);
> > if (ret) {
> > perror("ioctl");
> > printf("Erase Group Start Address command failed\n");
> > return ret;
> > }
> > ret = send_status(fd, &response);
> > if (response & 0xFFF900C0) {
> > printf("CMD13 returns: 0x%08x during CMD35\n", response);
> > }
> >
> > // Set end address
> > memset(&idata, 0, sizeof(idata));
> > idata.opcode = MMC_ERASE_GROUP_END;
> > idata.arg = end;
> > idata.flags = MMC_RSP_R1 | MMC_CMD_AC;
> > ret = ioctl(fd, MMC_IOC_CMD, &idata);
> > if (ret) {
> > perror("ioctl");
> > printf("Erase Group End Address command failed\n");
> > return ret;
> > }
> > ret = send_status(fd, &response);
> > if (response & 0xFFF900C0)
> > printf("CMD13 returns: 0x%08x during CMD36\n", response);
> >
> > // Send Erase Command
> > memset(&idata, 0, sizeof(idata));
> > idata.opcode = MMC_ERASE;
> > idata.arg = argin;
> > idata.cmd_timeout_ms = 60000;
> > idata.data_timeout_ns = 60000000;
> > idata.flags = MMC_RSP_R1B | MMC_CMD_AC;
> > ret = ioctl(fd, MMC_IOC_CMD, &idata);
> > if (ret) {
> > perror("ioctl");
> > printf("Erase command failed\n");
> > return ret;
> > }
> >
> > // Send Status Command
> > // 1098 7654 3210 9876 5432 1098 7654 3210
> > // 3322 2222 2222 1111 1111 1100 0000 0000
> > // 1111 1111 1111 1xx1 xxxx xxxx 11xx xxxx Device Status Error bits
> > // F F F 9 0 0 C 0 0xFFF900C0
> > ret = send_status(fd, &response);
> > if (response & 0xFFF900C0)
> > printf("CMD13 returns: 0x%08x during CMD38\n", response);
> > if (ret)
> > printf("Send Status Command returned 0x%08X\n", response);
> >
> > return ret;
> > }
> >
> 1150a1216
> >
> 1842a1909,1985
> >
> >
> >
> > int do_erase(int nargs, char **argv)
> > {
> > int fd, ret;
> > char *device;
> > char **eptr=NULL;
> > __u32 argin, start, end;
> >
> >
> > if (nargs != 5) {
> > fprintf(stderr, "Usage: mmc erase <arg> <start address> <end
> address> </path/to/mmcblkX>\n");
> > exit(1);
> > }
> >
> > if ((argv[1][0] == '0') && (argv[1][1] == 'x'))
> > argin = strtol(argv[1], eptr, 16);
> > else
> > argin = strtol(argv[1], eptr, 10);
> > if ((argv[2][0] == '0') && (argv[2][1] == 'x'))
> > start = strtol(argv[2], eptr, 16);
> > else
> > start = strtol(argv[2], eptr, 10);
> > if ((argv[3][0] == '0') && (argv[3][1] == 'x'))
> > end = strtol(argv[3], eptr, 16);
> > else
> > end = strtol(argv[3], eptr, 10);
> > device = argv[4];
> >
> > fd = open(device, O_RDWR);
> > if (fd < 0) {
> > perror("open");
> > exit(1);
> > }
> >
> > printf("Executing (0x%08X): ", argin);
> > switch(argin) {
> > case 0x00000000:
> > printf("Erase ");
> > break;
> > case 0x00000003:
> > printf("Discard ");
> > break;
> > case 0x80000000:
> > printf("Secure Erase ");
> > break;
> > case 0x80008000:
> > printf("Secure Trim Step 2 ");
> > break;
> > case 0x80000001:
> > printf("Secure Trim Step 1 ");
> > break;
> > case 0x00000001:
> > printf("Trim ");
> > break;
> > default:
> > printf("Unknown Argument ");
> > }
> > printf("From:0x%08X To:0x%08X\n", start, end);
> >
> > ret = erase(fd, argin, start, end);
> > if (ret) {
> > fprintf(stderr, "Error in Erase Command to %s with Arg=0x%08X
> Start=0x%08X End=0x%08X\n",
> > device,
> > argin,
> > start,
> > end);
> > exit(1);
> > }
> >
> > return ret;
> >
> > }
> >
> >
> >
>
> mmc.c
> 29c29
> < #define MMC_VERSION "0.1"
> ---
> > #define MMC_VERSION "0.1_KS"
> 135a136,140
> > NULL
> > },
> > { do_erase, -4,
> > "erase", "<arg> " "<start address> " "<end address> " "<device>\n"
> > "Send Erase command to the <device>.\nThis will delete all
> user data in the specified region of the device.",
>
>
