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add-partition-support.patch

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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:
Andy Green 2008-11-28 10:16:37 +00:00 committed by Andy Green
parent b6dd949b0e
commit 935ef0e12d
9 changed files with 117 additions and 73 deletions
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7
qiboot/include/qi.h
View File

@ -42,8 +42,8 @@ enum filesystem {
struct kernel_source {
const char *name; /* NULL name means invalid */
int (*block_init)(void);
int (*block_read)(unsigned char * buf, unsigned long byte_start,
int count_bytes);
int (*block_read)(unsigned char * buf, unsigned long start512,
int blocks512);
int partition_index; /* -1 means no partition table */
int offset_if_no_partition; /* used if partition_index is -1 */
enum filesystem filesystem;
@ -85,9 +85,10 @@ void print32(unsigned int u);
void printdec(int n);
void hexdump(unsigned char *start, int len);
unsigned int _ntohl(unsigned int n);
unsigned int _letocpu(unsigned int n);
unsigned long crc32(unsigned long crc, const unsigned char *buf,
unsigned int len);
int nand_read_ll(unsigned char *buf, unsigned long start_addr, int size);
int nand_read_ll(unsigned char *buf, unsigned long start512, int blocks512);
#endif

15
qiboot/src/drivers/glamo-mmc.c
View File

@ -316,8 +316,14 @@ static int mmc_cmd(int opcode, int arg, int flags,
return 0;
if (error) {
// printf("cmd 0x%x, arg 0x%x flags 0x%x\n", opcode, arg, flags);
#if 0
puts("cmd 0x");
print8(opcode);
puts(", arg 0x");
print8(arg);
puts(", flags 0x");
print32(flags);
puts("\n");
#if 1
puts("Error after cmd: 0x");
print32(error);
puts("\n");
@ -360,7 +366,7 @@ static int mmc_cmd(int opcode, int arg, int flags,
error = -5;
if (error) {
// printf("cmd 0x%x, arg 0x%x flags 0x%x\n", opcode, arg, flags);
#if 0
#if 1
puts("Error after resp: 0x");
print32(status);
puts("\n");
@ -573,7 +579,7 @@ static void print_sd_cid(const struct sd_cid *cid)
int mmc_init(int verbose)
{
int retries = 14, rc = -1;
int retries = 16, rc = -1;
int resp;
u8 response[16];
// mmc_cid_t *mmc_cid = (mmc_cid_t *)response;
@ -641,6 +647,7 @@ int mmc_init(int verbose)
udelay(100000);
udelay(100000);
udelay(100000);
resp = mmc_cmd(MMC_APP_CMD, 0x00000000,
MMC_CMD_AC | MMC_RSP_R1, 0, 0, 0,

2
qiboot/src/drivers/i2c-bitbang-s3c24xx.c
View File

@ -56,7 +56,7 @@ static void i2c_spin_s3c24xx(void)
{
int n;
for (n = 0; n < 700; n++)
for (n = 0; n < 1000; n++)
rGPJDAT |= (1 << 5);
}

24
qiboot/src/gta02/gta02.c
View File

@ -263,6 +263,15 @@ int sd_card_init_gta02(void)
return mmc_init(1);
}
int sd_card_block_read_gta02(unsigned char * buf, unsigned long start512,
int blocks512)
{
unsigned long mmc_bread(int dev_num, unsigned long blknr, unsigned long blkcnt,
void *dst);
return mmc_bread(0, start512, blocks512, buf);
}
/* return nonzero if we believe we run on GTA02 */
int is_this_board_gta02(void)
@ -303,9 +312,9 @@ const struct board_api board_api_gta02 = {
[0] = {
.name = "SD Card FAT Kernel",
.block_init = sd_card_init_gta02,
.block_read = nand_read_ll,
.partition_index = 0,
.filesystem = FS_FAT,
.block_read = sd_card_block_read_gta02,
.partition_index = 1,
.filesystem = FS_EXT2,
.commandline = "mtdparts=physmap-flash:-(nor);" \
"neo1973-nand:" \
"0x00040000(qi)," \
@ -314,18 +323,17 @@ const struct board_api board_api_gta02 = {
"0x000a0000(extra)," \
"0x00040000(identity)," \
"0x0f6a0000(backuprootfs) " \
"rootfstype=jffs2 " \
"root=/dev/mtdblock6 " \
"rootfstype=ext2 " \
"root=/dev/mmcblk0p1 " \
"console=ttySAC2,115200 " \
"loglevel=8 " \
"loglevel=4 " \
"init=/sbin/init "\
"ro"
},
[1] = {
.name = "NAND Kernel",
.block_read = nand_read_ll,
.partition_index = -1,
.offset_if_no_partition = 0x80000,
.offset_if_no_partition = 0x80000 / 512,
.filesystem = FS_RAW,
.commandline = "mtdparts=physmap-flash:-(nor);" \
"neo1973-nand:" \

3
qiboot/src/gta03/gta03.c
View File

@ -234,8 +234,7 @@ const struct board_api board_api_gta03 = {
[0] = {
.name = "NAND Kernel",
.block_read = nand_read_ll,
.partition_index = -1,
.offset_if_no_partition = 0x80000,
.offset_if_no_partition = 0x80000 / 512,
.filesystem = FS_RAW,
.commandline = "neo1973-nand:" \
"0x00040000(qi)," \

38
qiboot/src/nand_read.c
View File

@ -17,6 +17,7 @@
/* NOTE this stuff runs in steppingstone context! */
/* the API refers to 512-byte blocks */
#include <qi.h>
#include "nand_read.h"
@ -55,13 +56,13 @@ static inline void nand_wait(void)
#define NAND_BLOCK_MASK (NAND_PAGE_SIZE - 1)
#define NAND_BLOCK_SIZE (NAND_PAGE_SIZE * 64)
static int is_bad_block(unsigned long i)
static int is_bad_block(unsigned long block_index)
{
unsigned char data;
unsigned long page_num;
nand_clear_RnB();
page_num = i >> 11; /* addr / 2048 */
page_num = block_index >> 2; /* addr / 2048 */
NFCMD = NAND_CMD_READ0;
NFADDR = BAD_BLOCK_OFFSET & 0xff;
NFADDR = (BAD_BLOCK_OFFSET >> 8) & 0xff;
@ -78,7 +79,7 @@ static int is_bad_block(unsigned long i)
return 0;
}
static int nand_read_page_ll(unsigned char *buf, unsigned long addr)
static int nand_read_page_ll(unsigned char *buf, unsigned long block512)
{
unsigned short *ptr16 = (unsigned short *)buf;
unsigned int i, page_num;
@ -91,7 +92,7 @@ static int nand_read_page_ll(unsigned char *buf, unsigned long addr)
NFCMD = NAND_CMD_READ0;
page_num = addr >> 11; /* addr / 2048 */
page_num = block512 >> 2; /* 512 block -> 2048 block */
/* Write Address */
NFADDR = 0;
NFADDR = 0;
@ -108,17 +109,18 @@ static int nand_read_page_ll(unsigned char *buf, unsigned long addr)
*p16++ = NFDATA16;
}
#endif
return NAND_PAGE_SIZE;
return 4;
}
/* low level nand read function */
int nand_read_ll(unsigned char *buf, unsigned long start_addr, int size)
int nand_read_ll(unsigned char *buf, unsigned long start_block512,
int blocks512)
{
int i, j;
int bad_count = 0;
if ((start_addr & NAND_BLOCK_MASK) || (size & NAND_BLOCK_MASK))
return -1; /* invalid alignment */
if (start_block512 & 3) /* inside 2048-byte block */
return -1;
/* chip Enable */
nand_select();
@ -127,22 +129,20 @@ int nand_read_ll(unsigned char *buf, unsigned long start_addr, int size)
for (i = 0; i < 10; i++)
;
for (i = start_addr; i < (start_addr + size);) {
if ((i & (NAND_BLOCK_SIZE - 1)) == 0) {
if (is_bad_block(i) ||
is_bad_block(i + NAND_PAGE_SIZE)) {
i += NAND_BLOCK_SIZE;
size += NAND_BLOCK_SIZE;
while (blocks512 > 0) {
if (is_bad_block(start_block512) ||
is_bad_block(start_block512 + 4)) {
start_block512 += 4;
blocks512 += 4;
if (bad_count++ == 4)
return -1;
continue;
}
}
j = nand_read_page_ll(buf, i);
i += j;
buf += j;
j = nand_read_page_ll(buf, start_block512);
start_block512 += j;
buf += j << 9;
blocks512 -= j;
}
/* chip Disable */

46
qiboot/src/phase2.c
View File

@ -48,6 +48,8 @@ void bootloader_second_phase(void)
void * kernel_dram = (void *)(TEXT_BASE - (8 * 1024 * 1024));
unsigned long crc;
image_header_t *hdr;
unsigned long partition_offset_blocks = 0;
unsigned long partition_length_blocks = 0;
/* eat leading white space */
for (p = cmdline; *p == ' '; p++);
@ -67,16 +69,40 @@ void bootloader_second_phase(void)
/* if there's a partition table implied, parse it, otherwise
* just use a fixed offset
*/
if (this_board->kernel_source[kernel].partition_index != -1) {
if (this_board->kernel_source[kernel].partition_index) {
unsigned char *p = kernel_dram;
puts("partitions not supported yet\n");
if (this_board->kernel_source[kernel].block_read(
kernel_dram, 0, 4) < 0) {
puts("Bad partition read\n");
kernel++;
continue;
}
if ((p[0x1fe] != 0x55) || (p[0x1ff] != 0xaa)) {
puts("partition signature missing\n");
kernel++;
continue;
}
p += 0x1be + 8 + (0x10 * (this_board->
kernel_source[kernel].partition_index - 1));
partition_offset_blocks = (((u32)p[3]) << 24) |
(((u32)p[2]) << 16) |
(((u32)p[1]) << 8) |
p[0];
partition_length_blocks = (((u32)p[7]) << 24) |
(((u32)p[6]) << 16) |
(((u32)p[5]) << 8) |
p[4];
} else
partition_offset_blocks = this_board->
kernel_source[kernel].offset_if_no_partition;
} else {
if (this_board->kernel_source[kernel].block_read(
kernel_dram, this_board->kernel_source[kernel].
offset_if_no_partition, 4096) < 0) {
kernel_dram, partition_offset_blocks, 8) < 0) {
puts ("Bad kernel header\n");
kernel++;
continue;
@ -97,16 +123,14 @@ void bootloader_second_phase(void)
printdec(_ntohl(hdr->ih_size) >> 10);
puts(" KiB\n");
if (nand_read_ll(kernel_dram,
this_board->kernel_source[kernel].
offset_if_no_partition, (_ntohl(hdr->ih_size) +
sizeof(image_header_t) + 2048) &
~(2048 - 1)) < 0) {
if ((this_board->kernel_source[kernel].block_read)(
kernel_dram, partition_offset_blocks,
((_ntohl(hdr->ih_size) + sizeof(image_header_t) +
2048) & ~(2048 - 1)) >> 9) < 0) {
puts ("Bad kernel read\n");
kernel++;
continue;
}
}
puts(" Cmdline: ");
puts(p);

2
qiboot/src/start_qi.c
View File

@ -60,7 +60,7 @@ void start_qi(void)
*/
/* We randomly pull 24KBytes of bootloader */
if (nand_read_ll((unsigned char *)TEXT_BASE, 0, 24 * 1024) < 0)
if (nand_read_ll((unsigned char *)TEXT_BASE, 0, 24 * 1024 / 512) < 0)
goto unhappy;
/* ask all the boards we support in turn if they recognize this

5
qiboot/src/utils.c
View File

@ -54,6 +54,11 @@ unsigned int _ntohl(unsigned int n) {
((n & 0xff0000) >> 8) | ((n & 0xff000000) >> 24);
}
unsigned int _letocpu(unsigned int n) {
return n;
}
int puts(const char *string)
{
while (*string)