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qemu
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Allow a custom unlock address in CFI02 flash (Jan Kiszka). 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4218 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
balrog 2008-04-16 23:37:15 +00:00
parent 422ebf6979
commit 6725070d8d
3 changed files with 15 additions and 10 deletions
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3
hw/flash.h
View File

@ -13,7 +13,8 @@ pflash_t *pflash_cfi02_register(target_phys_addr_t base, ram_addr_t off,
BlockDriverState *bs, uint32_t sector_len,
int nb_blocs, int width,
uint16_t id0, uint16_t id1,
uint16_t id2, uint16_t id3);
uint16_t id2, uint16_t id3,
uint16_t unlock_addr0, uint16_t unlock_addr1);
/* nand.c */
struct nand_flash_s;

16
hw/pflash_cfi02.c
View File

@ -63,6 +63,7 @@ struct pflash_t {
uint8_t cmd;
uint8_t status;
uint16_t ident[4];
uint16_t unlock_addr[2];
uint8_t cfi_len;
uint8_t cfi_table[0x52];
QEMUTimer *timer;
@ -246,9 +247,9 @@ static void pflash_write (pflash_t *pfl, uint32_t offset, uint32_t value,
pfl->cmd = 0x98;
return;
}
if (boff != 0x555 || cmd != 0xAA) {
if (boff != pfl->unlock_addr[0] || cmd != 0xAA) {
DPRINTF("%s: unlock0 failed " TARGET_FMT_lx " %02x %04x\n",
__func__, boff, cmd, 0x555);
__func__, boff, cmd, pfl->unlock_addr[0]);
goto reset_flash;
}
DPRINTF("%s: unlock sequence started\n", __func__);
@ -256,7 +257,7 @@ static void pflash_write (pflash_t *pfl, uint32_t offset, uint32_t value,
case 1:
/* We started an unlock sequence */
check_unlock1:
if (boff != 0x2AA || cmd != 0x55) {
if (boff != pfl->unlock_addr[1] || cmd != 0x55) {
DPRINTF("%s: unlock1 failed " TARGET_FMT_lx " %02x\n", __func__,
boff, cmd);
goto reset_flash;
@ -265,7 +266,7 @@ static void pflash_write (pflash_t *pfl, uint32_t offset, uint32_t value,
break;
case 2:
/* We finished an unlock sequence */
if (!pfl->bypass && boff != 0x555) {
if (!pfl->bypass && boff != pfl->unlock_addr[0]) {
DPRINTF("%s: command failed " TARGET_FMT_lx " %02x\n", __func__,
boff, cmd);
goto reset_flash;
@ -361,7 +362,7 @@ static void pflash_write (pflash_t *pfl, uint32_t offset, uint32_t value,
case 5:
switch (cmd) {
case 0x10:
if (boff != 0x555) {
if (boff != pfl->unlock_addr[0]) {
DPRINTF("%s: chip erase: invalid address " TARGET_FMT_lx "\n",
__func__, offset);
goto reset_flash;
@ -528,7 +529,8 @@ pflash_t *pflash_cfi02_register(target_phys_addr_t base, ram_addr_t off,
BlockDriverState *bs, uint32_t sector_len,
int nb_blocs, int width,
uint16_t id0, uint16_t id1,
uint16_t id2, uint16_t id3)
uint16_t id2, uint16_t id3,
uint16_t unlock_addr0, uint16_t unlock_addr1)
{
pflash_t *pfl;
int32_t total_len;
@ -573,6 +575,8 @@ pflash_t *pflash_cfi02_register(target_phys_addr_t base, ram_addr_t off,
pfl->ident[1] = id1;
pfl->ident[2] = id2;
pfl->ident[3] = id3;
pfl->unlock_addr[0] = unlock_addr0;
pfl->unlock_addr[1] = unlock_addr1;
/* Hardcoded CFI table (mostly from SG29 Spansion flash) */
pfl->cfi_len = 0x52;
/* Standard "QRY" string */

6
hw/ppc405_boards.c
View File

@ -236,7 +236,7 @@ static void ref405ep_init (int ram_size, int vga_ram_size,
#endif
pflash_cfi02_register((uint32_t)(-bios_size), bios_offset,
drives_table[index].bdrv, 65536, fl_sectors, 2,
0x0001, 0x22DA, 0x0000, 0x0000);
0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA);
fl_idx++;
} else
#endif
@ -553,7 +553,7 @@ static void taihu_405ep_init(int ram_size, int vga_ram_size,
#endif
pflash_cfi02_register((uint32_t)(-bios_size), bios_offset,
drives_table[index].bdrv, 65536, fl_sectors, 4,
0x0001, 0x22DA, 0x0000, 0x0000);
0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA);
fl_idx++;
} else
#endif
@ -589,7 +589,7 @@ static void taihu_405ep_init(int ram_size, int vga_ram_size,
#endif
pflash_cfi02_register(0xfc000000, bios_offset,
drives_table[index].bdrv, 65536, fl_sectors, 4,
0x0001, 0x22DA, 0x0000, 0x0000);
0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA);
fl_idx++;
}
/* Register CLPD & LCD display */