mirror of
https://github.com/smaeul/u-boot.git
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1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
667 lines
16 KiB
C
667 lines
16 KiB
C
/*
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <mpc8xx.h>
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#ifndef CONFIG_ENV_ADDR
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#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
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#endif
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flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
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/*-----------------------------------------------------------------------
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* Functions
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*/
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static int write_word(flash_info_t *info, ulong dest, ulong data);
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#ifdef CONFIG_BOOT_8B
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static int my_in_8(unsigned char *addr);
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static void my_out_8(unsigned char *addr, int val);
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#endif
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#ifdef CONFIG_BOOT_16B
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static int my_in_be16(unsigned short *addr);
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static void my_out_be16(unsigned short *addr, int val);
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#endif
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#ifdef CONFIG_BOOT_32B
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static unsigned my_in_be32(unsigned *addr);
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static void my_out_be32(unsigned *addr, int val);
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#endif
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/*-----------------------------------------------------------------------
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*/
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unsigned long flash_init(void)
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{
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volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
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volatile memctl8xx_t *memctl = &immap->im_memctl;
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unsigned long size_b0, size_b1;
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int i;
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size_b0 = 0;
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size_b1 = 0;
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/* Init: no FLASHes known */
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for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i)
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flash_info[i].flash_id = FLASH_UNKNOWN;
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#ifdef CONFIG_SYS_DOC_BASE
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#ifndef CONFIG_FEL8xx_AT
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/* 32k bytes */
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memctl->memc_or5 = (0xffff8000 | CONFIG_SYS_OR_TIMING_DOC);
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memctl->memc_br5 = CONFIG_SYS_DOC_BASE | 0x401;
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#else
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/* 32k bytes */
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memctl->memc_or3 = (0xffff8000 | CONFIG_SYS_OR_TIMING_DOC);
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memctl->memc_br3 = CONFIG_SYS_DOC_BASE | 0x401;
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#endif
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#endif
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#if defined(CONFIG_BOOT_8B)
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size_b0 = 0x80000; /* 512 K */
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flash_info[0].flash_id = FLASH_MAN_AMD | FLASH_AM040;
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flash_info[0].sector_count = 8;
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flash_info[0].size = 0x00080000;
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/* set up sector start address table */
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for (i = 0; i < flash_info[0].sector_count; i++)
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flash_info[0].start[i] = 0x40000000 + (i * 0x10000);
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/* protect all sectors */
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for (i = 0; i < flash_info[0].sector_count; i++)
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flash_info[0].protect[i] = 0x1;
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#elif defined(CONFIG_BOOT_16B)
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size_b0 = 0x400000; /* 4MB , assume AMD29LV320B */
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flash_info[0].flash_id = FLASH_MAN_AMD | FLASH_AM320B;
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flash_info[0].sector_count = 67;
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flash_info[0].size = 0x00400000;
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/* set up sector start address table */
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flash_info[0].start[0] = 0x40000000;
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flash_info[0].start[1] = 0x40000000 + 0x4000;
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flash_info[0].start[2] = 0x40000000 + 0x6000;
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flash_info[0].start[3] = 0x40000000 + 0x8000;
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for (i = 4; i < flash_info[0].sector_count; i++) {
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flash_info[0].start[i] =
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0x40000000 + 0x10000 + ((i - 4) * 0x10000);
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}
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/* protect all sectors */
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for (i = 0; i < flash_info[0].sector_count; i++)
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flash_info[0].protect[i] = 0x1;
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#endif
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#ifdef CONFIG_BOOT_32B
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/* Static FLASH Bank configuration here - FIXME XXX */
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size_b0 = flash_get_size((vu_long *) FLASH_BASE0_PRELIM,
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&flash_info[0]);
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if (flash_info[0].flash_id == FLASH_UNKNOWN) {
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printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
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size_b0, size_b0 << 20);
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}
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size_b1 = flash_get_size((vu_long *) FLASH_BASE1_PRELIM,
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&flash_info[1]);
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if (size_b1 > size_b0) {
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printf("## ERROR: "
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"Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n",
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size_b1, size_b1 << 20, size_b0, size_b0 << 20);
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flash_info[0].flash_id = FLASH_UNKNOWN;
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flash_info[1].flash_id = FLASH_UNKNOWN;
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flash_info[0].sector_count = -1;
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flash_info[1].sector_count = -1;
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flash_info[0].size = 0;
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flash_info[1].size = 0;
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return 0;
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}
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/* Remap FLASH according to real size */
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memctl->memc_or0 = CONFIG_SYS_OR_TIMING_FLASH |
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(-size_b0 & OR_AM_MSK);
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memctl->memc_br0 = (CONFIG_SYS_FLASH_BASE & BR_BA_MSK) |
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BR_MS_GPCM | BR_V;
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/* Re-do sizing to get full correct info */
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size_b0 = flash_get_size((vu_long *) CONFIG_SYS_FLASH_BASE,
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&flash_info[0]);
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flash_get_offsets(CONFIG_SYS_FLASH_BASE, &flash_info[0]);
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#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
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/* monitor protection ON by default */
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flash_protect(FLAG_PROTECT_SET,
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CONFIG_SYS_MONITOR_BASE,
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CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
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&flash_info[0]);
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#endif
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#ifdef CONFIG_ENV_IS_IN_FLASH
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/* ENV protection ON by default */
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flash_protect(FLAG_PROTECT_SET,
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CONFIG_ENV_ADDR,
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CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[0]);
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#endif
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if (size_b1) {
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memctl->memc_or1 = CONFIG_SYS_OR_TIMING_FLASH |
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(-size_b1 & 0xFFFF8000);
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memctl->memc_br1 = ((CONFIG_SYS_FLASH_BASE +
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size_b0) & BR_BA_MSK) | BR_MS_GPCM | BR_V;
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/* Re-do sizing to get full correct info */
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size_b1 = flash_get_size((vu_long *)(CONFIG_SYS_FLASH_BASE +
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size_b0), &flash_info[1]);
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flash_get_offsets(CONFIG_SYS_FLASH_BASE + size_b0,
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&flash_info[1]);
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#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
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/* monitor protection ON by default */
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flash_protect(FLAG_PROTECT_SET,
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CONFIG_SYS_MONITOR_BASE,
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CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
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&flash_info[1]);
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#endif
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#ifdef CONFIG_ENV_IS_IN_FLASH
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/* ENV protection ON by default */
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flash_protect(FLAG_PROTECT_SET,
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CONFIG_ENV_ADDR,
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CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1,
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&flash_info[1]);
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#endif
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} else {
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memctl->memc_br1 = 0; /* invalidate bank */
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flash_info[1].flash_id = FLASH_UNKNOWN;
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flash_info[1].sector_count = -1;
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}
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flash_info[0].size = size_b0;
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flash_info[1].size = size_b1;
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#endif /* CONFIG_BOOT_32B */
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return size_b0 + size_b1;
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}
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void flash_print_info(flash_info_t *info)
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{
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int i;
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if (info->flash_id == FLASH_UNKNOWN) {
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printf("missing or unknown FLASH type\n");
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return;
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}
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switch (info->flash_id & FLASH_VENDMASK) {
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case FLASH_MAN_AMD:
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printf("AMD ");
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break;
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case FLASH_MAN_FUJ:
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printf("FUJITSU ");
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break;
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default:
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printf("Unknown Vendor ");
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break;
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}
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switch (info->flash_id & FLASH_TYPEMASK) {
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case FLASH_AM400B:
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printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM400T:
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printf("AM29LV400T (4 Mbit, top boot sector)\n");
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break;
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case FLASH_AM800B:
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printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM800T:
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printf("AM29LV800T (8 Mbit, top boot sector)\n");
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break;
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case FLASH_AM160B:
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printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM160T:
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printf("AM29LV160T (16 Mbit, top boot sector)\n");
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break;
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case FLASH_AM320B:
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printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM320T:
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printf("AM29LV320T (32 Mbit, top boot sector)\n");
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break;
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default:
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printf("Unknown Chip Type\n");
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break;
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}
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printf(" Size: %ld MB in %d Sectors\n",
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info->size >> 20, info->sector_count);
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printf(" Sector Start Addresses:");
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for (i = 0; i < info->sector_count; ++i) {
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if ((i % 5) == 0)
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printf("\n ");
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printf(" %08lX%s",
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info->start[i], info->protect[i] ? " (RO)" : " ");
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}
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printf("\n");
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return;
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}
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/*
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* The following code cannot be run from FLASH!
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*/
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int flash_erase(flash_info_t *info, int s_first, int s_last)
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{
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vu_long *addr = (vu_long *) (info->start[0]);
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int flag, prot, sect, l_sect, in_mid, in_did;
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ulong start, now, last;
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if ((s_first < 0) || (s_first > s_last)) {
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if (info->flash_id == FLASH_UNKNOWN)
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printf("- missing\n");
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else
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printf("- no sectors to erase\n");
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return 1;
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}
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if ((info->flash_id == FLASH_UNKNOWN) ||
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(info->flash_id > FLASH_AMD_COMP)) {
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printf("Can't erase unknown flash type %08lx - aborted\n",
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info->flash_id);
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return 1;
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}
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prot = 0;
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for (sect = s_first; sect <= s_last; ++sect) {
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if (info->protect[sect])
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prot++;
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}
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if (prot) {
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printf("- Warning: %d protected sectors will not be erased!\n",
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prot);
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} else {
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printf("\n");
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}
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l_sect = -1;
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/* Disable interrupts which might cause a timeout here */
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flag = disable_interrupts();
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#if defined(CONFIG_BOOT_8B)
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my_out_8((unsigned char *)((ulong)addr + 0x555), 0xaa);
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my_out_8((unsigned char *)((ulong)addr + 0x2aa), 0x55);
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my_out_8((unsigned char *)((ulong)addr + 0x555), 0x90);
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in_mid = my_in_8((unsigned char *)addr);
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in_did = my_in_8((unsigned char *)((ulong)addr + 1));
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printf(" man ID=0x%x, dev ID=0x%x.\n", in_mid, in_did);
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my_out_8((unsigned char *)addr, 0xf0);
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udelay(1);
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my_out_8((unsigned char *)((ulong)addr + 0x555), 0xaa);
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my_out_8((unsigned char *)((ulong)addr + 0x2aa), 0x55);
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my_out_8((unsigned char *)((ulong)addr + 0x555), 0x80);
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my_out_8((unsigned char *)((ulong)addr + 0x555), 0xaa);
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my_out_8((unsigned char *)((ulong)addr + 0x2aa), 0x55);
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/* Start erase on unprotected sectors */
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for (sect = s_first; sect <= s_last; sect++) {
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if (info->protect[sect] == 0) { /* not protected */
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addr = (vu_long *) (info->start[sect]);
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/*addr[0] = 0x00300030; */
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my_out_8((unsigned char *)((ulong)addr), 0x30);
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l_sect = sect;
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}
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}
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#elif defined(CONFIG_BOOT_16B)
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my_out_be16((unsigned short *)((ulong)addr + (0xaaa)), 0xaa);
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my_out_be16((unsigned short *)((ulong)addr + (0x554)), 0x55);
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my_out_be16((unsigned short *)((ulong)addr + (0xaaa)), 0x90);
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in_mid = my_in_be16((unsigned short *)addr);
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in_did = my_in_be16((unsigned short *)((ulong)addr + 2));
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printf(" man ID=0x%x, dev ID=0x%x.\n", in_mid, in_did);
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my_out_be16((unsigned short *)addr, 0xf0);
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udelay(1);
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my_out_be16((unsigned short *)((ulong)addr + 0xaaa), 0xaa);
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my_out_be16((unsigned short *)((ulong)addr + 0x554), 0x55);
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my_out_be16((unsigned short *)((ulong)addr + 0xaaa), 0x80);
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my_out_be16((unsigned short *)((ulong)addr + 0xaaa), 0xaa);
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my_out_be16((unsigned short *)((ulong)addr + 0x554), 0x55);
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/* Start erase on unprotected sectors */
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for (sect = s_first; sect <= s_last; sect++) {
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if (info->protect[sect] == 0) { /* not protected */
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addr = (vu_long *) (info->start[sect]);
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my_out_be16((unsigned short *)((ulong)addr), 0x30);
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l_sect = sect;
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}
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}
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#elif defined(CONFIG_BOOT_32B)
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my_out_be32((unsigned *)((ulong)addr + 0x1554), 0xaa);
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my_out_be32((unsigned *)((ulong)addr + 0xaa8), 0x55);
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my_out_be32((unsigned *)((ulong)addr + 0x1554), 0x90);
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in_mid = my_in_be32((unsigned *)addr);
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in_did = my_in_be32((unsigned *)((ulong)addr + 4));
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printf(" man ID=0x%x, dev ID=0x%x.\n", in_mid, in_did);
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my_out_be32((unsigned *) addr, 0xf0);
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udelay(1);
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my_out_be32((unsigned *)((ulong)addr + 0x1554), 0xaa);
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my_out_be32((unsigned *)((ulong)addr + 0xaa8), 0x55);
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my_out_be32((unsigned *)((ulong)addr + 0x1554), 0x80);
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my_out_be32((unsigned *)((ulong)addr + 0x1554), 0xaa);
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my_out_be32((unsigned *)((ulong)addr + 0xaa8), 0x55);
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/* Start erase on unprotected sectors */
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for (sect = s_first; sect <= s_last; sect++) {
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if (info->protect[sect] == 0) { /* not protected */
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addr = (vu_long *) (info->start[sect]);
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my_out_be32((unsigned *)((ulong)addr), 0x00300030);
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l_sect = sect;
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}
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}
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#else
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#error CONFIG_BOOT_(size)B missing.
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#endif
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/* re-enable interrupts if necessary */
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if (flag)
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enable_interrupts();
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/* wait at least 80us - let's wait 1 ms */
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udelay(1000);
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/*
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* We wait for the last triggered sector
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*/
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if (l_sect < 0)
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goto DONE;
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start = get_timer(0);
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last = start;
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addr = (vu_long *) (info->start[l_sect]);
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#if defined(CONFIG_BOOT_8B)
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while ((my_in_8((unsigned char *) addr) & 0x80) != 0x80)
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#elif defined(CONFIG_BOOT_16B)
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while ((my_in_be16((unsigned short *) addr) & 0x0080) != 0x0080)
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#elif defined(CONFIG_BOOT_32B)
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while ((my_in_be32((unsigned *) addr) & 0x00800080) != 0x00800080)
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#else
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#error CONFIG_BOOT_(size)B missing.
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#endif
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{
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now = get_timer(start);
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if (now > CONFIG_SYS_FLASH_ERASE_TOUT) {
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printf("Timeout\n");
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return 1;
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}
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/* show that we're waiting */
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if ((now - last) > 1000) { /* every second */
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putc('.');
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last = now;
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}
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}
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DONE:
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/* reset to read mode */
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addr = (volatile unsigned long *) info->start[0];
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#if defined(CONFIG_BOOT_8B)
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my_out_8((unsigned char *) addr, 0xf0);
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#elif defined(CONFIG_BOOT_16B)
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my_out_be16((unsigned short *) addr, 0x00f0);
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#elif defined(CONFIG_BOOT_32B)
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my_out_be32((unsigned *) addr, 0x00F000F0); /* reset bank */
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#else
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#error CONFIG_BOOT_(size)B missing.
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#endif
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printf(" done\n");
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return 0;
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}
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/*
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* Copy memory to flash, returns:
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* 0 - OK
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* 1 - write timeout
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* 2 - Flash not erased
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*/
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int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt)
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{
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ulong cp, wp, data;
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int i, l, rc;
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wp = (addr & ~3); /* get lower word aligned address */
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/*
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* handle unaligned start bytes
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*/
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l = addr - wp;
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if (l != 0) {
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data = 0;
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for (i = 0, cp = wp; i < l; ++i, ++cp)
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data = (data << 8) | (*(uchar *) cp);
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for (; i < 4 && cnt > 0; ++i) {
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data = (data << 8) | *src++;
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--cnt;
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++cp;
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}
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for (; cnt == 0 && i < 4; ++i, ++cp)
|
|
data = (data << 8) | (*(uchar *) cp);
|
|
|
|
rc = write_word(info, wp, data);
|
|
|
|
if (rc != 0)
|
|
return rc;
|
|
|
|
wp += 4;
|
|
}
|
|
|
|
/*
|
|
* handle word aligned part
|
|
*/
|
|
while (cnt >= 4) {
|
|
data = 0;
|
|
for (i = 0; i < 4; ++i)
|
|
data = (data << 8) | *src++;
|
|
|
|
rc = write_word(info, wp, data);
|
|
|
|
if (rc != 0)
|
|
return rc;
|
|
|
|
wp += 4;
|
|
cnt -= 4;
|
|
}
|
|
|
|
if (cnt == 0)
|
|
return 0;
|
|
|
|
/*
|
|
* handle unaligned tail bytes
|
|
*/
|
|
data = 0;
|
|
for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
|
|
data = (data << 8) | *src++;
|
|
--cnt;
|
|
}
|
|
for (; i < 4; ++i, ++cp)
|
|
data = (data << 8) | (*(uchar *) cp);
|
|
|
|
return write_word(info, wp, data);
|
|
}
|
|
|
|
/*
|
|
* Write a word to Flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
*/
|
|
static int write_word(flash_info_t *info, ulong dest, ulong data)
|
|
{
|
|
ulong addr = (ulong) (info->start[0]);
|
|
ulong start;
|
|
int flag;
|
|
ulong i;
|
|
int data_short[2];
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if (((ulong)*(ulong *)dest & data) != data)
|
|
return 2;
|
|
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
#if defined(CONFIG_BOOT_8B)
|
|
#ifdef DEBUG
|
|
{
|
|
int in_mid, in_did;
|
|
|
|
my_out_8((unsigned char *) (addr + 0x555), 0xaa);
|
|
my_out_8((unsigned char *) (addr + 0x2aa), 0x55);
|
|
my_out_8((unsigned char *) (addr + 0x555), 0x90);
|
|
|
|
in_mid = my_in_8((unsigned char *) addr);
|
|
in_did = my_in_8((unsigned char *) (addr + 1));
|
|
|
|
printf(" man ID=0x%x, dev ID=0x%x.\n", in_mid, in_did);
|
|
|
|
my_out_8((unsigned char *) addr, 0xf0);
|
|
udelay(1);
|
|
}
|
|
#endif
|
|
{
|
|
int data_ch[4];
|
|
|
|
data_ch[0] = (int) ((data >> 24) & 0xff);
|
|
data_ch[1] = (int) ((data >> 16) & 0xff);
|
|
data_ch[2] = (int) ((data >> 8) & 0xff);
|
|
data_ch[3] = (int) (data & 0xff);
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
my_out_8((unsigned char *) (addr + 0x555), 0xaa);
|
|
my_out_8((unsigned char *) (addr + 0x2aa), 0x55);
|
|
my_out_8((unsigned char *) (addr + 0x555), 0xa0);
|
|
my_out_8((unsigned char *) (dest + i), data_ch[i]);
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
start = get_timer(0);
|
|
while ((my_in_8((unsigned char *)(dest + i))) !=
|
|
(data_ch[i])) {
|
|
if (get_timer(start) >
|
|
CONFIG_SYS_FLASH_WRITE_TOUT) {
|
|
return 1;
|
|
}
|
|
}
|
|
} /* for */
|
|
}
|
|
#elif defined(CONFIG_BOOT_16B)
|
|
data_short[0] = (int) (data >> 16) & 0xffff;
|
|
data_short[1] = (int) data & 0xffff;
|
|
for (i = 0; i < 2; i++) {
|
|
my_out_be16((unsigned short *)((ulong)addr + 0xaaa), 0xaa);
|
|
my_out_be16((unsigned short *)((ulong)addr + 0x554), 0x55);
|
|
my_out_be16((unsigned short *)((ulong)addr + 0xaaa), 0xa0);
|
|
my_out_be16((unsigned short *)(dest + (i * 2)),
|
|
data_short[i]);
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
start = get_timer(0);
|
|
while ((my_in_be16((unsigned short *)(dest + (i * 2)))) !=
|
|
(data_short[i])) {
|
|
if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
|
|
return 1;
|
|
}
|
|
}
|
|
#elif defined(CONFIG_BOOT_32B)
|
|
addr[0x0555] = 0x00AA00AA;
|
|
addr[0x02AA] = 0x00550055;
|
|
addr[0x0555] = 0x00A000A0;
|
|
|
|
*((vu_long *)dest) = data;
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
/* data polling for D7 */
|
|
start = get_timer(0);
|
|
while ((*((vu_long *)dest) & 0x00800080) != (data & 0x00800080)) {
|
|
if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
|
|
return 1;
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_BOOT_8B
|
|
static int my_in_8(unsigned char *addr)
|
|
{
|
|
int ret;
|
|
__asm__ __volatile__("lbz%U1%X1 %0,%1; eieio":"=r"(ret):"m"(*addr));
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void my_out_8(unsigned char *addr, int val)
|
|
{
|
|
__asm__ __volatile__("stb%U0%X0 %1,%0; eieio":"=m"(*addr):"r"(val));
|
|
}
|
|
#endif
|
|
#ifdef CONFIG_BOOT_16B
|
|
static int my_in_be16(unsigned short *addr)
|
|
{
|
|
int ret;
|
|
__asm__ __volatile__("lhz%U1%X1 %0,%1; eieio":"=r"(ret):"m"(*addr));
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void my_out_be16(unsigned short *addr, int val)
|
|
{
|
|
__asm__ __volatile__("sth%U0%X0 %1,%0; eieio":"=m"(*addr):"r"(val));
|
|
}
|
|
#endif
|
|
#ifdef CONFIG_BOOT_32B
|
|
static unsigned my_in_be32(unsigned *addr)
|
|
{
|
|
unsigned ret;
|
|
__asm__ __volatile__("lwz%U1%X1 %0,%1; eieio":"=r"(ret):"m"(*addr));
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void my_out_be32(unsigned *addr, int val)
|
|
{
|
|
__asm__ __volatile__("stw%U0%X0 %1,%0; eieio":"=m"(*addr):"r"(val));
|
|
}
|
|
#endif
|