diff options
Diffstat (limited to 'board/st/u8500/mmc_utils.c')
| -rw-r--r-- | board/st/u8500/mmc_utils.c | 974 |
1 files changed, 116 insertions, 858 deletions
diff --git a/board/st/u8500/mmc_utils.c b/board/st/u8500/mmc_utils.c index 5ff34425e..d29255937 100644 --- a/board/st/u8500/mmc_utils.c +++ b/board/st/u8500/mmc_utils.c @@ -21,880 +21,138 @@ */ #include <linux/ctype.h> -#include <common.h> +#include "common.h" #include <command.h> +#include <mmc.h> #include <fat.h> -#include "gpio.h" -#include "mmc.h" // MMC api -#include "mmc_utils.h" // to access MMC -#include "mmc_p.h" // t_mmc_register definition -u32 MMCBuffer[1024] ; -static int IS_SD_CARD; - -/* --- exported from other modules ---------------------------------------- */ -static u8 selected_card = 0; -extern t_mmc_error mmc_cmderror_2 (void); -extern t_mmc_error mmc_cmdresp2error_2 (void); -extern t_mmc_error mmc_cmdresp3error_2 (void); -extern t_mmc_error mmc_cmdresp145error_2 (u8 cmd); -extern t_mmc_error mmc_cmdreadresp (u32 * tempbuff); -extern t_mmc_error mmc_waitcmdreadresp (void); -extern t_mmc_error mmc_cmdwriteresp (u8 cardno, u32 * tempbuff, u16 total_num_of_bytes); -extern t_mmc_error mmc_waitcmdwriteresp (u8 cardno, u32 * tempbuff, u16 total_num_of_bytes); - -extern t_mmc_register *t_mmc0; -extern u32 t_mmc_rel_addr; - -t_mmc_boot_record mmc_boot_record; - -void mmc_copyByteH (u8 * sourceAddr, u8 * destAddress, int size) -{ - int i; - for (i = 0; i < size; i++) - { - *(destAddress + i) = *(sourceAddr + i); - } -} - -void mmc_shift_memH (int num_of_words, u32 * start_address, u32 * dest_address, u32 shift) -{ - u32 *address; - int word = 0; - u32 high; - int i, word_offset, bit_offset; - - word_offset = (int) (shift / 32); - bit_offset = (int) (shift % 32); - for (i = 0; i < num_of_words; i++) - { - *(dest_address + i) = 0; - } - for (i = word_offset; i < num_of_words; i++) - { - *(dest_address + i - word_offset) = *(start_address + i); - } - address = dest_address; - for (word = 0; word < num_of_words - 1; word++) - { - *address = (*address) >> bit_offset; - address++; - high = (*address << (32 - bit_offset)); - *(address - 1) |= high; - } - *address = (*address) >> bit_offset; -} - -u8 convert_from_bytes_to_power_of_two (u16 no_of_bytes) -{ - u8 count = 0; - while (no_of_bytes != 1) - { - no_of_bytes >>= 1; - count++; - } - return count; -} - -t_mmc_error mmc_enable () -{ - t_mmc_error error = MMC_OK; - t_mmc_command_control commcontrol; - t_bool validvoltage = FALSE; - u32 arg, response; - int i; - - IS_SD_CARD = 0; - - selected_card = 0; - - t_mmc0->mmc_Power = 0x1BF; - t_mmc0->mmc_Clock = 0x41FF; - - commcontrol.IsRespExpected = FALSE; - commcontrol.IsLongResp = FALSE; - commcontrol.IsInterruptMode = FALSE; - commcontrol.IsPending = FALSE; - commcontrol.cmdpath = MMC_ENABLE; - - error = mmc_sendcommand (MMC_GO_IDLE_STATE, 0x00000000, commcontrol); - - error = mmc_cmderror_2 (); - - //// Added by Chris Sebastian for SD Card support: - //// Send ACMD41. If we do not get a response, it is not an SD card. - //// If we do get a response, loop until card is not busy. - - commcontrol.IsRespExpected = TRUE; - commcontrol.IsLongResp = FALSE; - commcontrol.IsInterruptMode = FALSE; - commcontrol.IsPending = FALSE; - commcontrol.cmdpath = MMC_ENABLE; - - for(i = 200; i; i--) { - error = mmc_sendcommand (MMC_APP_CMD, 0x00000000, commcontrol); // Let the card know that the next command is an app-cmd. - error = mmc_cmdresp145error_2(MMC_APP_CMD); - error = mmc_sendcommand (SD_SEND_OP_COND, 0x00060000, commcontrol); // I got the 0x00060000 from Linux kernel source. - error = mmc_cmdresp3error_2 (); - t_mmc0->mmc_Clear = ClrStaticFlags; //clear all the static status flags. CmdResp3Error_2 leaves some bits set. - if (t_mmc0->mmc_Response0 & 0x80000000) { - printf("SD card detected \n"); - IS_SD_CARD = 1; - return MMC_OK; // SD CARD DETECTED. Do not continue with MMC init logic. Quick escape! - } - } - - commcontrol.IsRespExpected = FALSE; - commcontrol.IsLongResp = FALSE; - commcontrol.IsInterruptMode = FALSE; - commcontrol.IsPending = FALSE; - commcontrol.cmdpath = MMC_ENABLE; - - error = mmc_sendcommand (MMC_GO_IDLE_STATE, 0x00000000, commcontrol); - error = mmc_cmderror_2 (); - - arg = 0x00060000; // High Voltage MMC, byte mode. Was 0x00FFC000, but that writes to reserved bits... - while (!validvoltage) - { - // send CMD1 (SEND_OP_COND) - commcontrol.IsRespExpected = TRUE; - error = mmc_sendcommand (MMC_SEND_OP_COND, arg, commcontrol); - - error = mmc_cmdresp3error_2 (); - - if (error != MMC_OK) - { - goto end; - } - mmc_getresponse (MMC_SHORT_RESP, &response); - - arg = response; - validvoltage = (t_bool) (((response >> 31) == 1) ? 1 : 0); - - } -end: - return error; -} - -t_mmc_error mmc_disable () -{ - t_mmc_error error = MMC_OK; - t_mmc_power_state powerstate = MMC_POWER_OFF; - - error = mmc_setpowerstate (powerstate); - return error; -} - -t_mmc_error mmc_initCard () -{ - t_mmc_error error = MMC_OK; - t_mmc_command_control commcontrol; - t_mmc_bus_configuration busconfig; - t_mmc_clock_control clockcontrol; - - // send CMD2 (ALL_SEND_CID) - commcontrol.IsRespExpected = TRUE; - commcontrol.IsLongResp = TRUE; - commcontrol.IsInterruptMode = FALSE; - commcontrol.IsPending = FALSE; - commcontrol.cmdpath = MMC_ENABLE; - - error = mmc_sendcommand (MMC_ALL_SEND_CID, 0x00000000, commcontrol); - error = mmc_cmdresp2error_2 (); - // error is MMC_CMD_CRC_FAIL on COB board ?! - // if( error != MMC_OK) - // goto end; - - // send CMD3 (SET_RELATIVE_ADDR) - - commcontrol.IsLongResp = FALSE; - error = mmc_sendcommand (MMC_SET_REL_ADDR, t_mmc_rel_addr, commcontrol); - error = mmc_cmdresp145error_2 (MMC_SET_REL_ADDR); - if(IS_SD_CARD) { - t_mmc_rel_addr = t_mmc0->mmc_Response0 & 0xFFFF0000; - } - - if (error != MMC_OK) - { - goto end; - } - busconfig.mode = MMC_PUSH_PULL; - busconfig.rodctrl = MMC_DISABLE; - error = mmc_configbus (busconfig); - clockcontrol.pwrsave= MMC_DISABLE; - clockcontrol.bypass = MMC_DISABLE; - clockcontrol.widebus= MMC_DISABLE; - error = mmc_setclockfrequency(0x00); /* 26 MHz */ - if (error != MMC_OK) - { - goto end; - } - error = mmc_configclockcontrol (clockcontrol); - if (error != MMC_OK) - { - goto end; - } -end: - return error; -} - -t_mmc_error mmc_readblock (u8 cardno, u32 addr, u32 * readbuff, u16 blocksize, t_mmc_transfer_mode mmc_transfer_mode) -{ - t_mmc_error error = MMC_OK; - u8 power; - t_mmc_command_control commcontrol; - u32 response; - - commcontrol.IsRespExpected = TRUE ; - commcontrol.IsLongResp = FALSE ; - commcontrol.IsInterruptMode = FALSE ; - commcontrol.IsPending = FALSE ; - commcontrol.cmdpath = MMC_ENABLE ; - error = mmc_setdatapath (MMC_DISABLE); - error = mmc_handledma (MMC_DISABLE); - if (error != MMC_OK) - { - goto end; - } - // send command for selecting the card - if (cardno != selected_card) - { - error = mmc_sendcommand (MMC_SEL_DESEL_CARD, t_mmc_rel_addr, commcontrol); - error = mmc_cmdresp145error_2 (MMC_SEL_DESEL_CARD); - if (error != MMC_OK) - { - goto end; - } - else - { - selected_card = cardno; - } - } - error = mmc_getresponse (MMC_SHORT_RESP, &response); - if (response & 0x02000000) - { - return MMC_LOCK_UNLOCK_FAILED; - } - // set the block size,both on controller and card - if ((blocksize > 0) && (blocksize <= 2048) && ((blocksize & (blocksize - 1)) == 0)) - { - power = convert_from_bytes_to_power_of_two (blocksize); - error = mmc_setdatablocklength (power); - error = mmc_sendcommand (MMC_SET_BLOCKLEN, (u32) blocksize, commcontrol); - error = mmc_cmdresp145error_2 (MMC_SET_BLOCKLEN); - if (error != MMC_OK) - { - return error; - } - } - else - { - error = MMC_INVALID_PARAMETER; - goto end; - } - error = mmc_setdatalength (blocksize ); - error = mmc_setdatatimeout (0xefffffff ); - error = mmc_settransferdirection (MMC_READ ); - error = mmc_settransfertype (MMC_BLOCK ); - error = mmc_setdatapath (MMC_ENABLE); - //t_mmc0->mmc_DataCtrl |= (ReadDir & ~StreamMode) | DataPathEnable; - error = mmc_sendcommand (MMC_READ_SINGLE_BLOCK, addr, commcontrol); - error = mmc_cmdresp145error_2 (MMC_READ_SINGLE_BLOCK); - if (error != MMC_OK) - { - goto end; - } - if (mmc_transfer_mode == MMCDMA) - { - error = mmc_waitcmdreadresp (); - } - else - { - error = mmc_cmdreadresp (readbuff); - } - if (error != MMC_OK) - { - goto end; - } -end: - return error; -} - -t_mmc_error mmc_writeblock (u8 cardno, u32 addr, u32 * writebuff, u16 blocksize, t_mmc_transfer_mode mmc_transfer_mode) -{ - t_mmc_error error = MMC_OK; - u8 power; - t_mmc_command_control commcontrol; - u32 response; - - commcontrol.IsRespExpected = TRUE; - commcontrol.IsLongResp = FALSE; - commcontrol.IsInterruptMode = FALSE; - commcontrol.IsPending = FALSE; - commcontrol.cmdpath = MMC_ENABLE; - - error = mmc_setdatapath (MMC_DISABLE); - error = mmc_handledma (MMC_DISABLE); - error = mmc_settransferdirection(MMC_WRITE); - error = mmc_settransfertype (MMC_BLOCK); - - if (cardno != selected_card) - { - error = mmc_sendcommand (MMC_SEL_DESEL_CARD, t_mmc_rel_addr, commcontrol); - error = mmc_cmdresp145error_2 (MMC_SEL_DESEL_CARD); - if (error != MMC_OK) - { - goto end; - } - else - { - selected_card = cardno; - } - } - - mmc_getresponse (MMC_SHORT_RESP, &response); - if (response & 0x02000000) - { - return MMC_LOCK_UNLOCK_FAILED; - } - // set the block size,both on controller and card - if ((blocksize > 0) && (blocksize <= 2048) && (((blocksize & (blocksize - 1)) == 0))) - { - power = convert_from_bytes_to_power_of_two (blocksize); - error = mmc_setdatablocklength (power); - error = mmc_sendcommand (MMC_SET_BLOCKLEN, (u32) blocksize, commcontrol); - error = mmc_cmdresp145error_2 (MMC_SET_BLOCKLEN); - if (error != MMC_OK) - { - goto end; - } - } - else - { - error = MMC_INVALID_PARAMETER; - goto end; - } - - error = mmc_setdatalength (blocksize); - error = mmc_setdatatimeout (0xefffffff); - error = mmc_settransferdirection (MMC_WRITE); - error = mmc_settransfertype (MMC_BLOCK); - error = mmc_setdatapath (MMC_ENABLE); - error = mmc_sendcommand (MMC_WRITE_SINGLE_BLOCK, addr, commcontrol); - error = mmc_cmdresp145error_2 (MMC_WRITE_SINGLE_BLOCK); - if (error != MMC_OK) - { - goto end; - } - if (mmc_transfer_mode == MMCDMA) - { - error = mmc_waitcmdwriteresp (cardno, writebuff, blocksize); - } - else - { - error = mmc_cmdwriteresp (cardno, writebuff, blocksize); - } - if (error != MMC_OK) - { - goto end; - } -end: - return error; -} - -t_mmc_error mmc_readcsd (u32 * CSD) -{ - t_mmc_error error = MMC_OK; - t_mmc_command_control commcontrol; - u32 buf[4]; - - // send CMD9 (SEND CSD) - commcontrol.IsRespExpected = TRUE; - commcontrol.IsLongResp = TRUE; - commcontrol.IsInterruptMode = FALSE; - commcontrol.IsPending = FALSE; - commcontrol.cmdpath = MMC_ENABLE; - - error = mmc_sendcommand (MMC_SEND_CSD, t_mmc_rel_addr, commcontrol); - error = mmc_cmdresp2error_2 (); - if (error != MMC_OK) - { - goto end; - } - error = mmc_getresponse (MMC_LONG_RESP, buf); - CSD[0] = buf[3]; - CSD[1] = buf[2]; - CSD[2] = buf[1]; - CSD[3] = buf[0]; -end: - return error; -} - -t_mmc_error mmc_select_n_switch(void) +#define PIB_EMMC_ADDR 0x00 + +struct partition { + unsigned char boot_ind; /* 0x80 - active */ + unsigned char head; /* starting head */ + unsigned char sector; /* starting sector */ + unsigned char cyl; /* starting cylinder */ + unsigned char sys_ind; /* What partition type */ + unsigned char end_head; /* end head */ + unsigned char end_sector; /* end sector */ + unsigned char end_cyl; /* end cylinder */ + u32 start_sect; /* starting sector counting from 0 */ + u32 nr_sects; /* nr of sectors in partition */ +} __attribute__((packed)); + +#define PART(type, start, num) \ + { \ + .boot_ind = 0x00, \ + .head = 0x03, \ + .sector = 0xD0, \ + .cyl = 0xff, \ + .sys_ind = type, \ + .end_head = 0x03, \ + .end_sector = 0xd0, \ + .end_cyl = 0xff, \ + .start_sect = start, \ + .nr_sects = num, \ + } + +static struct partition partitions_ed[] = { + [0] = PART(0x83, 0x000A0000, 0x00004000), /* Kernel */ + [1] = PART(0x83, 0x000A4000, 0x00080000), /* Root file system */ + [2] = PART(0x83, 0x00124000, 0x0022c000), + [3] = PART(0x0c, 0x00350000, 0x00b9a000), +}; + +static struct partition partitions_v1[] = { + [0] = PART(0x83, 0x000A0000, 0x00004000), /* Kernel */ + [1] = PART(0x83, 0x000A4000, 0x00080000), /* Root file system */ + [2] = PART(0x83, 0x00124000, 0x00000800), /* Modem parameters */ + [3] = {0}, +}; + +#undef PART + +int write_partition_block(void) { - t_mmc_error error = MMC_OK; - t_mmc_command_control commcontrol; - /* t_mmc_clock_control clockcontrol; */ - u32 response; - u8 cardno = 1; - - commcontrol.IsRespExpected = TRUE; - commcontrol.IsLongResp = FALSE; - commcontrol.IsInterruptMode = FALSE; - commcontrol.IsPending = FALSE; - commcontrol.cmdpath = MMC_ENABLE; - - // send command for selecting the card - if (cardno != selected_card) - { - error = mmc_sendcommand(MMC_SEL_DESEL_CARD, t_mmc_rel_addr, commcontrol); - error = mmc_cmdresp145error_2(MMC_SEL_DESEL_CARD); - if (error != MMC_OK) - { - goto end; - } - else - { - selected_card = cardno; - } - } - error = mmc_getresponse(MMC_SHORT_RESP, &response); - if (response & 0x02000000) - { - error = MMC_LOCK_UNLOCK_FAILED; - goto end; - } - /* XXX: what is this, why is it commented out, why is it here at all? */ - /* - error = mmc_sendcommand (MMC_APP_CMD, 0x00000000, commcontrol); - error = mmc_cmdresp145error_2(MMC_APP_CMD); - error = mmc_sendcommand (6, 0x2, commcontrol); - error = mmc_cmdresp145error_2(6); - if (error != MMC_OK) - { - goto end; - } - clockcontrol.pwrsave= MMC_DISABLE; - clockcontrol.bypass = MMC_DISABLE; - clockcontrol.widebus= MMC_ENABLE; - error = mmc_configclockcontrol (clockcontrol); - if (error != MMC_OK) - { - goto end; - } - */ -end: - return error; -} - -t_mmc_error mmc_readcid (u32 * CID) -{ - t_mmc_error error = MMC_OK; - t_mmc_command_control commcontrol; - u32 buf[4]; - - // send CMD9 (SEND CSD) - commcontrol.IsRespExpected = TRUE; - commcontrol.IsLongResp = TRUE; - commcontrol.IsInterruptMode = FALSE; - commcontrol.IsPending = FALSE; - commcontrol.cmdpath = MMC_ENABLE; - - error = mmc_sendcommand (MMC_SEND_CID, t_mmc_rel_addr, commcontrol); - error = mmc_cmdresp2error_2 (); - if (error != MMC_OK) - { - goto end; - } - error = mmc_getresponse (MMC_LONG_RESP, buf); - CID[0] = buf[3]; - CID[1] = buf[2]; - CID[2] = buf[1]; - CID[3] = buf[0]; -end: - return error; + int err; + u32 offset = PIB_EMMC_ADDR; + u8 mbr[512]; + u8 emmc_existing_partition[512]; + struct mmc *boot_dev = NULL; + + memset(mbr, 0, 0x1be); + if (u8500_is_earlydrop()) + memcpy(mbr + 0x1be, partitions_ed, sizeof(partitions_ed)); + else + memcpy(mbr + 0x1be, partitions_v1, sizeof(partitions_v1)); + + /* magic */ + mbr[0x1fe] = 0x55; + mbr[0x1ff] = 0xAA; + + printf("Writing partition block (if needed)...\n"); + + boot_dev = find_mmc_device(CONFIG_EMMC_DEV_NUM); + if (!boot_dev) { + printf(" Error: eMMC device not found\n"); + return 1; + } + + err = boot_dev->block_dev.block_read(CONFIG_EMMC_DEV_NUM, + offset, + 1, + (void *) emmc_existing_partition); + if (err != 1) { + printf(" Error: eMMC read failed\n"); + return 1; + } + + if (memcmp((void *)emmc_existing_partition, (void *)mbr, 512)) { + err = boot_dev->block_dev.block_write(CONFIG_EMMC_DEV_NUM, + offset, + 1, + (void *) mbr); + if (err != 1) { + printf(" Error: eMMC write failed\n"); + return 1; + } + } + printf(" eMMC partition block exists now\n"); + return 0; } -t_mmc_error mmc_read_file (char *filename, u32 address, u32 * FileSize) -{ - u8 *mem_address = (u8 *) address; - u8 sector[512]; - u16 BytesPerSector; - u32 BRStartSector; - u32 FATStartSector; - u32 DataStartSector; - u32 FileStartSector; - u16 SectorsPerFAT; - u8 SectorsPerCluster; - u8 k; - u16 MaxRDEntries; - u16 ReservedSectors; - u32 RDStartSector, j; - char nomefile[12] = " "; - int filelength; - u16 FileStartCluster = 0; - t_mmc_error response, response2; - int i, goout, found, result = PASS; - u32 CSD[4]; - char mmcfilename[] = " "; - char *dotpos; - - /////////// Attention please: ///////////////////// - // // - // if other Alternate function apart from MMCI // - // are selected, the MMCI I/F has some problems // - // // - //////////////////////////////////////////////////// - - gpio_altfuncenable(GPIO_ALT_SD_CARD0, "MMC"); - // Power-on the controller - response = mmc_enable (); - - if (response != MMC_OK) - { - - response = mmc_enable (); // This actually IS necessary because it takes time for newly-inserted cards initialize. ~Chris S. - if (response != MMC_OK) - { - printf ("Error in card power on\n"); - result = FAIL; - goto end; - } - } - // Initialise the cards on the bus, if any - response = mmc_initCard (); - - if (response != MMC_OK) - { - printf ("Error in card initialization\n"); - result = FAIL; - goto end; - } - // Get card info: CID, CSD, RCA registers - response = mmc_readcsd (CSD); - - if (response != MMC_OK) - { - printf ("Error while fetching card info\n"); - result = FAIL; - goto end; - } - - // Select card and switch to 4-Bit, TODO HS if possible - response = mmc_select_n_switch (); - - if (response != MMC_OK) - { - printf ("Error while select or switching to 4-bit/HS\n"); - goto end; - } - - // Read the MBR - response = mmc_readblock (1, 0, (u32 *) sector, 512, MMCPOLLING); - - if (response != MMC_OK) - { - printf ("Error while reading boot record\n"); - result = FAIL; - goto end; - } - if (sector[446] == 0x00 || sector[446] == 0x80) - { // found a MBR at the beginning of card - BRStartSector = sector[454]; - } - else - { // BR at the beginning of card - BRStartSector = 0x00; - } - // Read the BR - response = mmc_readblock (1, (u32) (512 * BRStartSector), (u32 *) & mmc_boot_record, 512, MMCPOLLING); - - k = 0; - while (response == MMC_DATA_CRC_FAIL && (k < 2)) - { - response = mmc_readblock (1, (u32) (512 * BRStartSector), (u32 *) & mmc_boot_record, 512, MMCPOLLING); - k++; - } - if (response != MMC_OK) - { - printf ("Error while reading boot record\n"); - result = FAIL; - goto end; - } - mmc_copyByteH (mmc_boot_record.BytesPerSector, (u8 *) & BytesPerSector, 2); - mmc_copyByteH (mmc_boot_record.ReservedSectors, (u8 *) & ReservedSectors, 2); - FATStartSector = BRStartSector + ReservedSectors; // the field at offset 15 contains the number of reserved sectors at - // the beginning of the media including the boot sector - mmc_copyByteH (mmc_boot_record.SectorsPerFat, (u8 *) & SectorsPerFAT, 2); - SectorsPerCluster = mmc_boot_record.SectorsPerCluster[0]; - mmc_copyByteH (mmc_boot_record.NumOfRootEntries, (u8 *) & MaxRDEntries, 2); - FATStartSector += SectorsPerFAT; - RDStartSector = FATStartSector + SectorsPerFAT; - DataStartSector = RDStartSector + (u32) ((MaxRDEntries * 32) / 512); - - - - // convert filename into mmc compatible file name (upper case , <= 8+3 char, no dot, no extension) - filelength = strlen (filename); - dotpos = strchr (filename, '.'); - if (dotpos == NULL) - { - // no dot - if (filelength <= 8) - { - for (j = 0; j < filelength; j++) - { - mmcfilename[j] = (char) toupper (filename[j]); - } - } - else - { - for (j = 0; j < 6; j++) - { - mmcfilename[j] = (char) toupper (filename[j]); - } - mmcfilename[7] = '~'; - mmcfilename[8] = '1'; - filelength = 8; - } - } - else - { - // dot - if ((dotpos - filename) <= 8) - { - for (j = 0; j < (dotpos - filename); j++) - { - mmcfilename[j] = (char) toupper (filename[j]); - } - for (; j < 8; j++) - { - mmcfilename[j] = ' '; - } - // copy 3 char after . - mmcfilename[j++] = (char) toupper (dotpos[1]); - mmcfilename[j++] = (char) toupper (dotpos[2]); - mmcfilename[j++] = (char) toupper (dotpos[3]); - - } - else - { - for (j = 0; j < 6; j++) - { - mmcfilename[j] = (char) toupper (filename[j]); - } - mmcfilename[6] = '~'; - mmcfilename[7] = '1'; - // copy 3 char after . - mmcfilename[8] = (char) toupper (dotpos[1]); - mmcfilename[9] = (char) toupper (dotpos[2]); - mmcfilename[10] = (char) toupper (dotpos[3]); - } - filelength = 11; - } - mmcfilename[11] = '\0'; - - - // search Root Directory for entry filename - goout = 0; - found = 0; - for (j = 0; j < (DataStartSector - RDStartSector); j++) - { - if (goout == 1) - break; - response = mmc_readblock (1, (u32) ((RDStartSector + j) * 512), (u32 *) sector, 512, MMCPOLLING); - if (response != MMC_OK) - { - printf ("Error while reading root directory\n"); - result = FAIL; - goto end; - } - - for (i = 0; i < 512; i += 32) - { - strncpy (nomefile, (char *) §or[i], filelength); - if (strcmp (nomefile, mmcfilename) == 0) - { - mmc_copyByteH (§or[i + 26], (u8 *) & FileStartCluster, 2); - mmc_copyByteH (§or[i + 28], (u8 *) FileSize, 4); - FileStartCluster -= 2; - goout = 1; - found = 1; - break; - } - if (nomefile[0] == 0) - { // end of Root Directory - goout = 1; - break; - } - } - } - - // size of file : *FileSize ( 32 bits quantum) - // number of bytes per sector : BytesPerSector - // Beginning of file : FileStartSector - - printf ("Bytes per sector : %d \n", BytesPerSector ); - printf ("Sectors per cluster : %d \n", SectorsPerCluster ); - if (found) - { - u32 remaining = *FileSize ; - u32 count; - u32 burstsize = BytesPerSector ; - - FileStartSector = ( DataStartSector + (u32)(FileStartCluster * SectorsPerCluster)) ; - printf ("Reading file %s from MMC ..., start sector = %d, address 0x%x \n",filename,FileStartSector,address); - count = SectorsPerCluster - (FileStartSector % SectorsPerCluster) ; - FileStartSector = FileStartSector * BytesPerSector; // the first burst might be different to align of clusters - - do - { - if ( remaining >= burstsize ) - { // read straight burst - - k = 0; - do - { - response = mmc_readblock (1, (u32) FileStartSector , (u32 *) mem_address, burstsize , MMCPOLLING); - k++; - - } while ((response==MMC_DATA_CRC_FAIL)&&(k<4)); - if ( k != 1) printf ("!"); - FileStartSector += burstsize; - mem_address += burstsize; - remaining -= burstsize; - } - else - { // read burst +1 and perform memcpy - - burstsize = ((remaining + (BytesPerSector-1))/BytesPerSector) * BytesPerSector ; - k = 0; - do - { - response = mmc_readblock (1, (u32) FileStartSector , (u32 *) MMCBuffer , burstsize , MMCPOLLING); - k++; - } while ((response==MMC_DATA_CRC_FAIL)&&(k<4)); - if ( k != 1) printf ("!"); - memcpy ((char *) mem_address, (char *)MMCBuffer,remaining); - remaining = 0; - } - if (response != MMC_OK) - { - printf ("Error while reading file %s\n", filename); - result = FAIL; - goto end; - } - } while ( remaining ); - - } - else - { - printf ("Unable to find %s on Multi Media Card\n", filename); - response = MMC_INVALID_PARAMETER; - result = FAIL; - goto end; - } - -end: - - return response; -} +U_BOOT_CMD( + write_partition_block, 1, 0, write_partition_block, + "- write partition block on emmc device\n", + NULL +); /* * command line commands */ - -static char mmc_cmdbuffer[1024] ; - -static int copy_file_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) -{ #ifdef CONFIG_CMD_FAT - unsigned long address; - long sz; - - address = simple_strtoul (argv[2], 0, 16); - - printf("copy_file_mmc : filename = %s\n", argv[1]); - printf("copy_file_mmc : address = %lx\n", address); - - sz = file_fat_read(argv[1], (void *)address, 0); - if (sz == -1) - { - printf("copy_file_mmc error : in loading file \n"); - return 1; - } - - return 0; -#else - unsigned long address; - unsigned long filesize; - int load_result = 1; - unsigned long error_name = 0; - char filename[30] ; - { - strcpy(filename , argv[1]); - address = simple_strtoul (argv[2],0,16);//argv[2]; - - printf("copy_file_mmc : filename = %s\n",filename); - printf("copy_file_mmc : address = %lx\n",address); - - load_result = mmc_read_file(filename,address,&filesize); - if (load_result != 0) - { - error_name = (unsigned long) (-load_result); - printf("copy_file_mmc error : in loading file \n"); - } - return(0); - } -#endif -} - -static int mmc_read_cmd_file (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +static int mmc_read_cmd_file(cmd_tbl_t *cmdtp, int flag, int argc, + char *argv[]) { -#ifdef CONFIG_CMD_FAT - long sz; - - sz = file_fat_read("command.txt", &mmc_cmdbuffer, sizeof(mmc_cmdbuffer) - 1); - if (sz == -1) - { - printf("No command.txt found in the Card\n"); - return 1; - } - - mmc_cmdbuffer[sz] = '\0'; - setenv ("bootcmd", mmc_cmdbuffer); - return 0; -#else - unsigned long filesize; - int load_result = 1; - unsigned long error_name = 0; - - load_result = mmc_read_file("command.txt",(unsigned long)&mmc_cmdbuffer,&filesize); - if (load_result != 0) - { - error_name = (unsigned long) (-load_result); - printf("mmc_read_cmd_file error : in loading file \n"); - } - else - { - setenv ("bootcmd", mmc_cmdbuffer); - } - return(0); -#endif + long sz; + char mmc_cmdbuffer[1024]; + + sz = file_fat_read("command.txt", &mmc_cmdbuffer, + sizeof(mmc_cmdbuffer) - 1); + if (sz == -1) { + printf("No command.txt found in the MMC/SD card\n"); + return 1; + } + + mmc_cmdbuffer[sz] = '\0'; + setenv("bootcmd", mmc_cmdbuffer); + return 0; } U_BOOT_CMD( - copy_file_mmc, 3, 0, copy_file_mmc, - "- copy file from mmc card\n", - "filename address\n" - " - load binary file from the MMC/SD card to a memory address\n" -); - - -U_BOOT_CMD( - mmc_read_cmd_file, 1, 0, mmc_read_cmd_file, - "- copy command file from mmc card\n", + mmc_read_cmd_file, 1, 0, mmc_read_cmd_file, + "- setup bootcmd env by reading command.txt file from MMC/SD card\n", NULL ); +#endif /* ------------------------------- End of file ---------------------------- */ |