mirror of
git://projects.qi-hardware.com/xburst-tools.git
synced 2024-12-23 17:15:32 +02:00
add-partition-support.patch
We have to minimally support DOS partition scheme. Partitions are counted from 1+ now, and 0 means no partition table instead of -1. Signed-off-by: Andy Green <andy@openmoko.com>
This commit is contained in:
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b6dd949b0e
commit
935ef0e12d
@ -42,8 +42,8 @@ enum filesystem {
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struct kernel_source {
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const char *name; /* NULL name means invalid */
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int (*block_init)(void);
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int (*block_read)(unsigned char * buf, unsigned long byte_start,
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int count_bytes);
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int (*block_read)(unsigned char * buf, unsigned long start512,
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int blocks512);
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int partition_index; /* -1 means no partition table */
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int offset_if_no_partition; /* used if partition_index is -1 */
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enum filesystem filesystem;
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@ -85,9 +85,10 @@ void print32(unsigned int u);
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void printdec(int n);
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void hexdump(unsigned char *start, int len);
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unsigned int _ntohl(unsigned int n);
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unsigned int _letocpu(unsigned int n);
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unsigned long crc32(unsigned long crc, const unsigned char *buf,
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unsigned int len);
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int nand_read_ll(unsigned char *buf, unsigned long start_addr, int size);
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int nand_read_ll(unsigned char *buf, unsigned long start512, int blocks512);
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#endif
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@ -316,8 +316,14 @@ static int mmc_cmd(int opcode, int arg, int flags,
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return 0;
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if (error) {
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// printf("cmd 0x%x, arg 0x%x flags 0x%x\n", opcode, arg, flags);
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#if 0
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puts("cmd 0x");
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print8(opcode);
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puts(", arg 0x");
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print8(arg);
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puts(", flags 0x");
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print32(flags);
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puts("\n");
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#if 1
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puts("Error after cmd: 0x");
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print32(error);
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puts("\n");
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@ -360,7 +366,7 @@ static int mmc_cmd(int opcode, int arg, int flags,
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error = -5;
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if (error) {
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// printf("cmd 0x%x, arg 0x%x flags 0x%x\n", opcode, arg, flags);
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#if 0
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#if 1
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puts("Error after resp: 0x");
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print32(status);
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puts("\n");
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@ -573,7 +579,7 @@ static void print_sd_cid(const struct sd_cid *cid)
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int mmc_init(int verbose)
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{
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int retries = 14, rc = -1;
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int retries = 16, rc = -1;
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int resp;
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u8 response[16];
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// mmc_cid_t *mmc_cid = (mmc_cid_t *)response;
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@ -641,6 +647,7 @@ int mmc_init(int verbose)
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udelay(100000);
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udelay(100000);
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udelay(100000);
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resp = mmc_cmd(MMC_APP_CMD, 0x00000000,
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MMC_CMD_AC | MMC_RSP_R1, 0, 0, 0,
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@ -56,7 +56,7 @@ static void i2c_spin_s3c24xx(void)
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{
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int n;
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for (n = 0; n < 700; n++)
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for (n = 0; n < 1000; n++)
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rGPJDAT |= (1 << 5);
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}
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@ -263,6 +263,15 @@ int sd_card_init_gta02(void)
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return mmc_init(1);
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}
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int sd_card_block_read_gta02(unsigned char * buf, unsigned long start512,
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int blocks512)
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{
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unsigned long mmc_bread(int dev_num, unsigned long blknr, unsigned long blkcnt,
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void *dst);
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return mmc_bread(0, start512, blocks512, buf);
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}
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/* return nonzero if we believe we run on GTA02 */
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int is_this_board_gta02(void)
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@ -303,9 +312,9 @@ const struct board_api board_api_gta02 = {
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[0] = {
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.name = "SD Card FAT Kernel",
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.block_init = sd_card_init_gta02,
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.block_read = nand_read_ll,
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.partition_index = 0,
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.filesystem = FS_FAT,
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.block_read = sd_card_block_read_gta02,
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.partition_index = 1,
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.filesystem = FS_EXT2,
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.commandline = "mtdparts=physmap-flash:-(nor);" \
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"neo1973-nand:" \
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"0x00040000(qi)," \
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@ -314,18 +323,17 @@ const struct board_api board_api_gta02 = {
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"0x000a0000(extra)," \
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"0x00040000(identity)," \
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"0x0f6a0000(backuprootfs) " \
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"rootfstype=jffs2 " \
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"root=/dev/mtdblock6 " \
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"rootfstype=ext2 " \
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"root=/dev/mmcblk0p1 " \
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"console=ttySAC2,115200 " \
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"loglevel=8 " \
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"loglevel=4 " \
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"init=/sbin/init "\
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"ro"
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},
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[1] = {
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.name = "NAND Kernel",
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.block_read = nand_read_ll,
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.partition_index = -1,
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.offset_if_no_partition = 0x80000,
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.offset_if_no_partition = 0x80000 / 512,
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.filesystem = FS_RAW,
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.commandline = "mtdparts=physmap-flash:-(nor);" \
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"neo1973-nand:" \
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@ -234,8 +234,7 @@ const struct board_api board_api_gta03 = {
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[0] = {
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.name = "NAND Kernel",
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.block_read = nand_read_ll,
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.partition_index = -1,
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.offset_if_no_partition = 0x80000,
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.offset_if_no_partition = 0x80000 / 512,
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.filesystem = FS_RAW,
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.commandline = "neo1973-nand:" \
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"0x00040000(qi)," \
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@ -17,6 +17,7 @@
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/* NOTE this stuff runs in steppingstone context! */
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/* the API refers to 512-byte blocks */
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#include <qi.h>
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#include "nand_read.h"
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@ -55,13 +56,13 @@ static inline void nand_wait(void)
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#define NAND_BLOCK_MASK (NAND_PAGE_SIZE - 1)
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#define NAND_BLOCK_SIZE (NAND_PAGE_SIZE * 64)
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static int is_bad_block(unsigned long i)
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static int is_bad_block(unsigned long block_index)
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{
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unsigned char data;
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unsigned long page_num;
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nand_clear_RnB();
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page_num = i >> 11; /* addr / 2048 */
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page_num = block_index >> 2; /* addr / 2048 */
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NFCMD = NAND_CMD_READ0;
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NFADDR = BAD_BLOCK_OFFSET & 0xff;
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NFADDR = (BAD_BLOCK_OFFSET >> 8) & 0xff;
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@ -78,7 +79,7 @@ static int is_bad_block(unsigned long i)
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return 0;
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}
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static int nand_read_page_ll(unsigned char *buf, unsigned long addr)
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static int nand_read_page_ll(unsigned char *buf, unsigned long block512)
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{
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unsigned short *ptr16 = (unsigned short *)buf;
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unsigned int i, page_num;
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@ -91,7 +92,7 @@ static int nand_read_page_ll(unsigned char *buf, unsigned long addr)
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NFCMD = NAND_CMD_READ0;
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page_num = addr >> 11; /* addr / 2048 */
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page_num = block512 >> 2; /* 512 block -> 2048 block */
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/* Write Address */
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NFADDR = 0;
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NFADDR = 0;
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@ -108,17 +109,18 @@ static int nand_read_page_ll(unsigned char *buf, unsigned long addr)
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*p16++ = NFDATA16;
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}
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#endif
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return NAND_PAGE_SIZE;
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return 4;
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}
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/* low level nand read function */
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int nand_read_ll(unsigned char *buf, unsigned long start_addr, int size)
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int nand_read_ll(unsigned char *buf, unsigned long start_block512,
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int blocks512)
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{
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int i, j;
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int bad_count = 0;
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if ((start_addr & NAND_BLOCK_MASK) || (size & NAND_BLOCK_MASK))
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return -1; /* invalid alignment */
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if (start_block512 & 3) /* inside 2048-byte block */
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return -1;
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/* chip Enable */
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nand_select();
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@ -127,22 +129,20 @@ int nand_read_ll(unsigned char *buf, unsigned long start_addr, int size)
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for (i = 0; i < 10; i++)
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;
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for (i = start_addr; i < (start_addr + size);) {
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if ((i & (NAND_BLOCK_SIZE - 1)) == 0) {
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if (is_bad_block(i) ||
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is_bad_block(i + NAND_PAGE_SIZE)) {
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i += NAND_BLOCK_SIZE;
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size += NAND_BLOCK_SIZE;
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if (bad_count++ == 4)
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return -1;
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continue;
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}
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while (blocks512 > 0) {
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if (is_bad_block(start_block512) ||
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is_bad_block(start_block512 + 4)) {
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start_block512 += 4;
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blocks512 += 4;
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if (bad_count++ == 4)
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return -1;
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continue;
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}
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j = nand_read_page_ll(buf, i);
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i += j;
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buf += j;
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j = nand_read_page_ll(buf, start_block512);
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start_block512 += j;
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buf += j << 9;
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blocks512 -= j;
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}
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/* chip Disable */
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@ -48,6 +48,8 @@ void bootloader_second_phase(void)
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void * kernel_dram = (void *)(TEXT_BASE - (8 * 1024 * 1024));
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unsigned long crc;
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image_header_t *hdr;
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unsigned long partition_offset_blocks = 0;
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unsigned long partition_length_blocks = 0;
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/* eat leading white space */
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for (p = cmdline; *p == ' '; p++);
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@ -67,45 +69,67 @@ void bootloader_second_phase(void)
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/* if there's a partition table implied, parse it, otherwise
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* just use a fixed offset
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*/
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if (this_board->kernel_source[kernel].partition_index != -1) {
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if (this_board->kernel_source[kernel].partition_index) {
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unsigned char *p = kernel_dram;
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puts("partitions not supported yet\n");
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if (this_board->kernel_source[kernel].block_read(
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kernel_dram, 0, 4) < 0) {
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puts("Bad partition read\n");
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kernel++;
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continue;
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}
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if ((p[0x1fe] != 0x55) || (p[0x1ff] != 0xaa)) {
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puts("partition signature missing\n");
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kernel++;
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continue;
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}
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p += 0x1be + 8 + (0x10 * (this_board->
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kernel_source[kernel].partition_index - 1));
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partition_offset_blocks = (((u32)p[3]) << 24) |
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(((u32)p[2]) << 16) |
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(((u32)p[1]) << 8) |
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p[0];
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partition_length_blocks = (((u32)p[7]) << 24) |
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(((u32)p[6]) << 16) |
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(((u32)p[5]) << 8) |
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p[4];
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} else
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partition_offset_blocks = this_board->
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kernel_source[kernel].offset_if_no_partition;
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if (this_board->kernel_source[kernel].block_read(
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kernel_dram, partition_offset_blocks, 8) < 0) {
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puts ("Bad kernel header\n");
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kernel++;
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continue;
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}
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} else {
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if (this_board->kernel_source[kernel].block_read(
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kernel_dram, this_board->kernel_source[kernel].
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offset_if_no_partition, 4096) < 0) {
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puts ("Bad kernel header\n");
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kernel++;
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continue;
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}
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hdr = (image_header_t *)kernel_dram;
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hdr = (image_header_t *)kernel_dram;
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if (_ntohl(hdr->ih_magic) != IH_MAGIC) {
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puts("bad magic ");
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print32(hdr->ih_magic);
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kernel++;
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continue;
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}
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if (_ntohl(hdr->ih_magic) != IH_MAGIC) {
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puts("bad magic ");
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print32(hdr->ih_magic);
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kernel++;
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continue;
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}
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puts(" Found: ");
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puts((const char *)hdr->ih_name);
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puts("\n Size: ");
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printdec(_ntohl(hdr->ih_size) >> 10);
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puts(" KiB\n");
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puts(" Found: ");
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puts((const char *)hdr->ih_name);
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puts("\n Size: ");
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printdec(_ntohl(hdr->ih_size) >> 10);
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puts(" KiB\n");
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if (nand_read_ll(kernel_dram,
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this_board->kernel_source[kernel].
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offset_if_no_partition, (_ntohl(hdr->ih_size) +
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sizeof(image_header_t) + 2048) &
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~(2048 - 1)) < 0) {
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puts ("Bad kernel read\n");
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kernel++;
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continue;
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}
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if ((this_board->kernel_source[kernel].block_read)(
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kernel_dram, partition_offset_blocks,
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((_ntohl(hdr->ih_size) + sizeof(image_header_t) +
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2048) & ~(2048 - 1)) >> 9) < 0) {
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puts ("Bad kernel read\n");
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kernel++;
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continue;
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}
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puts(" Cmdline: ");
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@ -60,7 +60,7 @@ void start_qi(void)
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*/
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/* We randomly pull 24KBytes of bootloader */
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if (nand_read_ll((unsigned char *)TEXT_BASE, 0, 24 * 1024) < 0)
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if (nand_read_ll((unsigned char *)TEXT_BASE, 0, 24 * 1024 / 512) < 0)
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goto unhappy;
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/* ask all the boards we support in turn if they recognize this
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@ -54,6 +54,11 @@ unsigned int _ntohl(unsigned int n) {
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((n & 0xff0000) >> 8) | ((n & 0xff000000) >> 24);
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}
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unsigned int _letocpu(unsigned int n) {
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return n;
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}
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int puts(const char *string)
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{
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while (*string)
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