mirror of
https://github.com/AsahiLinux/u-boot
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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>
705 lines
15 KiB
C
705 lines
15 KiB
C
/*
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* board/eva/flash.c
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*
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* (C) Copyright 2002
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* Sangmoon Kim, Etin Systems, dogoil@etinsys.com.
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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 <asm/processor.h>
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#include <asm/pci_io.h>
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#include <mpc824x.h>
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#include <asm/mmu.h>
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int (*do_flash_erase)(flash_info_t*, uint32_t, uint32_t);
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int (*write_dword)(flash_info_t*, ulong, uint64_t);
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typedef uint64_t cfi_word;
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#define cfi_read(flash, addr) *((volatile cfi_word*)(flash->start[0] + addr))
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#define cfi_write(flash, val, addr) \
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move64((cfi_word*)&val, \
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(cfi_word*)(flash->start[0] + addr))
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#define CMD(x) ((((cfi_word)x)<<48)|(((cfi_word)x)<<32)|(((cfi_word)x)<<16)|(((cfi_word)x)))
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static void write32(unsigned long addr, uint32_t value)
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{
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*(volatile uint32_t*)(addr) = value;
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asm volatile("sync");
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}
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static uint32_t read32(unsigned long addr)
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{
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uint32_t value;
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value = *(volatile uint32_t*)addr;
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asm volatile("sync");
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return value;
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}
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static cfi_word cfi_cmd(flash_info_t *flash, uint8_t cmd, uint32_t addr)
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{
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uint32_t base = flash->start[0];
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uint32_t val=(cmd << 16) | cmd;
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addr <<= 3;
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write32(base + addr, val);
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return addr;
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}
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static uint16_t cfi_read_query(flash_info_t *flash, uint32_t addr)
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{
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uint32_t base = flash->start[0];
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addr <<= 3;
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return (uint16_t)read32(base + addr);
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}
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flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
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static void move64(uint64_t *src, uint64_t *dest)
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{
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asm volatile("lfd 0, 0(3)\n\t" /* fpr0 = *scr */
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"stfd 0, 0(4)" /* *dest = fpr0 */
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: : : "fr0" ); /* Clobbers fr0 */
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return;
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}
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static int cfi_write_dword(flash_info_t *flash, ulong dest, cfi_word data)
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{
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unsigned long start;
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cfi_word status = 0;
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status = cfi_read(flash, dest);
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data &= status;
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cfi_cmd(flash, 0x40, 0);
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cfi_write(flash, data, dest);
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udelay(10);
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start = get_timer (0);
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for(;;) {
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status = cfi_read(flash, dest);
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status &= CMD(0x80);
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if(status == CMD(0x80))
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break;
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if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
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cfi_cmd(flash, 0xff, 0);
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return 1;
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}
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udelay(1);
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}
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cfi_cmd(flash, 0xff, 0);
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return 0;
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}
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static int jedec_write_dword (flash_info_t *flash, ulong dest, cfi_word data)
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{
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ulong start;
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cfi_word status = 0;
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status = cfi_read(flash, dest);
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if(status != CMD(0xffff)) return 2;
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cfi_cmd(flash, 0xaa, 0x555);
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cfi_cmd(flash, 0x55, 0x2aa);
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cfi_cmd(flash, 0xa0, 0x555);
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cfi_write(flash, data, dest);
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udelay(10);
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start = get_timer (0);
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status = ~data;
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while(status != data) {
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if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
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return 1;
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status = cfi_read(flash, dest);
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udelay(1);
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}
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return 0;
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}
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static __inline__ unsigned long get_msr(void)
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{
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unsigned long msr;
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__asm__ __volatile__ ("mfmsr %0" : "=r" (msr) :);
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return msr;
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}
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static __inline__ void set_msr(unsigned long msr)
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{
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__asm__ __volatile__ ("mtmsr %0" : : "r" (msr));
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}
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int write_buff (flash_info_t *flash, uchar *src, ulong addr, ulong cnt)
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{
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ulong wp;
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int i, s, l, rc;
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cfi_word data;
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uint8_t *t = (uint8_t*)&data;
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unsigned long base = flash->start[0];
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uint32_t msr;
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if (flash->flash_id == FLASH_UNKNOWN)
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return 4;
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if (cnt == 0)
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return 0;
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addr -= base;
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msr = get_msr();
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set_msr(msr|MSR_FP);
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wp = (addr & ~7); /* get lower word aligned address */
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if((addr-wp) != 0) {
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data = cfi_read(flash, wp);
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s = addr & 7;
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l = ( cnt < (8-s) ) ? cnt : (8-s);
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for(i = 0; i < l; i++)
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t[s+i] = *src++;
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if ((rc = write_dword(flash, wp, data)) != 0)
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goto DONE;
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wp += 8;
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cnt -= l;
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}
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while (cnt >= 8) {
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for (i = 0; i < 8; i++)
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t[i] = *src++;
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if ((rc = write_dword(flash, wp, data)) != 0)
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goto DONE;
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wp += 8;
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cnt -= 8;
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}
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if (cnt == 0) {
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rc = 0;
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goto DONE;
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}
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data = cfi_read(flash, wp);
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for(i = 0; i < cnt; i++)
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t[i] = *src++;
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rc = write_dword(flash, wp, data);
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DONE:
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set_msr(msr);
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return rc;
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}
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static int cfi_erase_oneblock(flash_info_t *flash, uint32_t sect)
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{
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int sa;
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int flag;
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ulong start, last, now;
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cfi_word status;
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flag = disable_interrupts();
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sa = (flash->start[sect] - flash->start[0]);
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write32(flash->start[sect], 0x00200020);
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write32(flash->start[sect], 0x00d000d0);
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if (flag)
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enable_interrupts();
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udelay(1000);
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start = get_timer (0);
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last = start;
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for (;;) {
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status = cfi_read(flash, sa);
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status &= CMD(0x80);
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if (status == CMD(0x80))
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break;
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if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
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cfi_cmd(flash, 0xff, 0);
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printf ("Timeout\n");
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return ERR_TIMOUT;
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}
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if ((now - last) > 1000) {
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serial_putc ('.');
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last = now;
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}
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udelay(10);
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}
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cfi_cmd(flash, 0xff, 0);
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return ERR_OK;
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}
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static int cfi_erase(flash_info_t *flash, uint32_t s_first, uint32_t s_last)
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{
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int sect;
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int rc = ERR_OK;
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for (sect = s_first; sect <= s_last; sect++) {
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if (flash->protect[sect] == 0) {
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rc = cfi_erase_oneblock(flash, sect);
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if (rc != ERR_OK) break;
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}
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}
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printf (" done\n");
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return rc;
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}
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static int jedec_erase(flash_info_t *flash, uint32_t s_first, uint32_t s_last)
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{
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int sect;
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cfi_word status;
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int sa = -1;
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int flag;
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ulong start, last, now;
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flag = disable_interrupts();
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cfi_cmd(flash, 0xaa, 0x555);
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cfi_cmd(flash, 0x55, 0x2aa);
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cfi_cmd(flash, 0x80, 0x555);
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cfi_cmd(flash, 0xaa, 0x555);
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cfi_cmd(flash, 0x55, 0x2aa);
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for ( sect = s_first; sect <= s_last; sect++) {
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if (flash->protect[sect] == 0) {
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sa = flash->start[sect] - flash->start[0];
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write32(flash->start[sect], 0x00300030);
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}
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}
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if (flag)
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enable_interrupts();
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if (sa < 0)
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goto DONE;
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udelay (1000);
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start = get_timer (0);
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last = start;
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for(;;) {
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status = cfi_read(flash, sa);
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if (status == CMD(0xffff))
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break;
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if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
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printf ("Timeout\n");
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return ERR_TIMOUT;
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}
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if ((now - last) > 1000) {
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serial_putc ('.');
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last = now;
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}
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udelay(10);
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}
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DONE:
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cfi_cmd(flash, 0xf0, 0);
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printf (" done\n");
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return ERR_OK;
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}
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int flash_erase (flash_info_t *flash, int s_first, int s_last)
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{
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int sect;
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int prot;
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if ((s_first < 0) || (s_first > s_last)) {
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if (flash->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 ERR_NOT_ERASED;
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}
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if (flash->flash_id == FLASH_UNKNOWN) {
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printf ("Can't erase unknown flash type - aborted\n");
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return ERR_NOT_ERASED;
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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 (flash->protect[sect]) prot++;
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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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return do_flash_erase(flash, s_first, s_last);
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}
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struct jedec_flash_info {
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const uint16_t mfr_id;
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const uint16_t dev_id;
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const char *name;
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const int DevSize;
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const int InterfaceDesc;
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const int NumEraseRegions;
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const ulong regions[4];
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};
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#define ERASEINFO(size,blocks) (size<<8)|(blocks-1)
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#define SIZE_1MiB 20
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#define SIZE_2MiB 21
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#define SIZE_4MiB 22
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static const struct jedec_flash_info jedec_table[] = {
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{
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mfr_id: (uint16_t)AMD_MANUFACT,
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dev_id: (uint16_t)AMD_ID_LV800T,
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name: "AMD AM29LV800T",
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DevSize: SIZE_1MiB,
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NumEraseRegions: 4,
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regions: {ERASEINFO(0x10000,15),
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ERASEINFO(0x08000,1),
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ERASEINFO(0x02000,2),
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ERASEINFO(0x04000,1)
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}
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}, {
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mfr_id: (uint16_t)AMD_MANUFACT,
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dev_id: (uint16_t)AMD_ID_LV800B,
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name: "AMD AM29LV800B",
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DevSize: SIZE_1MiB,
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NumEraseRegions: 4,
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regions: {ERASEINFO(0x10000,15),
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ERASEINFO(0x08000,1),
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ERASEINFO(0x02000,2),
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ERASEINFO(0x04000,1)
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}
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}, {
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mfr_id: (uint16_t)AMD_MANUFACT,
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dev_id: (uint16_t)AMD_ID_LV160T,
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name: "AMD AM29LV160T",
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DevSize: SIZE_2MiB,
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NumEraseRegions: 4,
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regions: {ERASEINFO(0x10000,31),
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ERASEINFO(0x08000,1),
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ERASEINFO(0x02000,2),
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ERASEINFO(0x04000,1)
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}
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}, {
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mfr_id: (uint16_t)AMD_MANUFACT,
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dev_id: (uint16_t)AMD_ID_LV160B,
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name: "AMD AM29LV160B",
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DevSize: SIZE_2MiB,
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NumEraseRegions: 4,
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regions: {ERASEINFO(0x04000,1),
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ERASEINFO(0x02000,2),
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ERASEINFO(0x08000,1),
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ERASEINFO(0x10000,31)
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}
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}, {
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mfr_id: (uint16_t)AMD_MANUFACT,
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dev_id: (uint16_t)AMD_ID_LV320T,
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name: "AMD AM29LV320T",
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DevSize: SIZE_4MiB,
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NumEraseRegions: 2,
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regions: {ERASEINFO(0x10000,63),
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ERASEINFO(0x02000,8)
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}
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}, {
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mfr_id: (uint16_t)AMD_MANUFACT,
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dev_id: (uint16_t)AMD_ID_LV320B,
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name: "AMD AM29LV320B",
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DevSize: SIZE_4MiB,
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NumEraseRegions: 2,
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regions: {ERASEINFO(0x02000,8),
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ERASEINFO(0x10000,63)
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}
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}
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};
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static ulong cfi_init(uint32_t base, flash_info_t *flash)
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{
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int sector;
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int block;
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int block_count;
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int offset = 0;
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int reverse = 0;
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int primary;
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int mfr_id;
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int dev_id;
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flash->start[0] = base;
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cfi_cmd(flash, 0xF0, 0);
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cfi_cmd(flash, 0x98, 0);
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if ( !( cfi_read_query(flash, 0x10) == 'Q' &&
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cfi_read_query(flash, 0x11) == 'R' &&
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cfi_read_query(flash, 0x12) == 'Y' )) {
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cfi_cmd(flash, 0xff, 0);
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return 0;
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}
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flash->size = 1 << cfi_read_query(flash, 0x27);
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flash->size *= 4;
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block_count = cfi_read_query(flash, 0x2c);
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primary = cfi_read_query(flash, 0x15);
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if ( cfi_read_query(flash, primary + 4) == 0x30)
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reverse = (cfi_read_query(flash, 0x1) & 0x01);
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else
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reverse = (cfi_read_query(flash, primary+15) == 3);
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flash->sector_count = 0;
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for ( block = reverse ? block_count - 1 : 0;
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reverse ? block >= 0 : block < block_count;
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reverse ? block-- : block ++) {
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int sector_size =
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(cfi_read_query(flash, 0x2d + block*4+2) |
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(cfi_read_query(flash, 0x2d + block*4+3) << 8)) << 8;
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int sector_count =
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(cfi_read_query(flash, 0x2d + block*4+0) |
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(cfi_read_query(flash, 0x2d + block*4+1) << 8)) + 1;
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for(sector = 0; sector < sector_count; sector++) {
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flash->start[flash->sector_count++] = base + offset;
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offset += sector_size * 4;
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}
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}
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mfr_id = cfi_read_query(flash, 0x00);
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dev_id = cfi_read_query(flash, 0x01);
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cfi_cmd(flash, 0xff, 0);
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flash->flash_id = (mfr_id << 16) | dev_id;
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for (sector = 0; sector < flash->sector_count; sector++) {
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write32(flash->start[sector], 0x00600060);
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write32(flash->start[sector], 0x00d000d0);
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}
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cfi_cmd(flash, 0xff, 0);
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for (sector = 0; sector < flash->sector_count; sector++)
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flash->protect[sector] = 0;
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do_flash_erase = cfi_erase;
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write_dword = cfi_write_dword;
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return flash->size;
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}
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static ulong jedec_init(unsigned long base, flash_info_t *flash)
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{
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int i;
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int block, block_count;
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int sector, offset;
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int mfr_id, dev_id;
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flash->start[0] = base;
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cfi_cmd(flash, 0xF0, 0x000);
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cfi_cmd(flash, 0xAA, 0x555);
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cfi_cmd(flash, 0x55, 0x2AA);
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cfi_cmd(flash, 0x90, 0x555);
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mfr_id = cfi_read_query(flash, 0x000);
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dev_id = cfi_read_query(flash, 0x0001);
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cfi_cmd(flash, 0xf0, 0x000);
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for(i=0; i<sizeof(jedec_table)/sizeof(struct jedec_flash_info); i++) {
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if((jedec_table[i].mfr_id == mfr_id) &&
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(jedec_table[i].dev_id == dev_id)) {
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flash->flash_id = (mfr_id << 16) | dev_id;
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flash->size = 1 << jedec_table[0].DevSize;
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flash->size *= 4;
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block_count = jedec_table[i].NumEraseRegions;
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offset = 0;
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flash->sector_count = 0;
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for (block = 0; block < block_count; block++) {
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int sector_size = jedec_table[i].regions[block];
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int sector_count = (sector_size & 0xff) + 1;
|
|
sector_size >>= 8;
|
|
for (sector=0; sector<sector_count; sector++) {
|
|
flash->start[flash->sector_count++] =
|
|
base + offset;
|
|
offset += sector_size * 4;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (sector = 0; sector < flash->sector_count; sector++)
|
|
flash->protect[sector] = 0;
|
|
|
|
do_flash_erase = jedec_erase;
|
|
write_dword = jedec_write_dword;
|
|
|
|
return flash->size;
|
|
}
|
|
|
|
inline void mtibat1u(unsigned int x)
|
|
{
|
|
__asm__ __volatile__ ("mtspr 530, %0" :: "r" (x));
|
|
}
|
|
|
|
inline void mtibat1l(unsigned int x)
|
|
{
|
|
__asm__ __volatile__ ("mtspr 531, %0" :: "r" (x));
|
|
}
|
|
|
|
inline void mtdbat1u(unsigned int x)
|
|
{
|
|
__asm__ __volatile__ ("mtspr 538, %0" :: "r" (x));
|
|
}
|
|
|
|
inline void mtdbat1l(unsigned int x)
|
|
{
|
|
__asm__ __volatile__ ("mtspr 539, %0" :: "r" (x));
|
|
}
|
|
|
|
unsigned long flash_init (void)
|
|
{
|
|
unsigned long size = 0;
|
|
int i;
|
|
unsigned int msr;
|
|
|
|
/* BAT1 */
|
|
CONFIG_WRITE_WORD(ERCR3, 0x0C00000C);
|
|
CONFIG_WRITE_WORD(ERCR4, 0x0800000C);
|
|
msr = get_msr();
|
|
set_msr(msr & ~(MSR_IR | MSR_DR));
|
|
mtibat1l(0x70000000 | BATL_PP_10 | BATL_CACHEINHIBIT);
|
|
mtibat1u(0x70000000 | BATU_BL_256M | BATU_VS | BATU_VP);
|
|
mtdbat1l(0x70000000 | BATL_PP_10 | BATL_CACHEINHIBIT);
|
|
mtdbat1u(0x70000000 | BATU_BL_256M | BATU_VS | BATU_VP);
|
|
set_msr(msr);
|
|
|
|
for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++)
|
|
flash_info[i].flash_id = FLASH_UNKNOWN;
|
|
size = cfi_init(FLASH_BASE0_PRELIM, &flash_info[0]);
|
|
if (!size)
|
|
size = jedec_init(FLASH_BASE0_PRELIM, &flash_info[0]);
|
|
|
|
if (flash_info[0].flash_id == FLASH_UNKNOWN)
|
|
printf ("# Unknown FLASH on Bank 1 - Size = 0x%08lx = %ld MB\n",
|
|
size, size<<20);
|
|
|
|
return size;
|
|
}
|
|
|
|
void flash_print_info (flash_info_t *flash)
|
|
{
|
|
int i;
|
|
int k;
|
|
int size;
|
|
int erased;
|
|
volatile unsigned long *p;
|
|
|
|
if (flash->flash_id == FLASH_UNKNOWN) {
|
|
printf ("missing or unknown FLASH type\n");
|
|
flash_init();
|
|
}
|
|
|
|
if (flash->flash_id == FLASH_UNKNOWN) {
|
|
printf ("missing or unknown FLASH type\n");
|
|
return;
|
|
}
|
|
|
|
switch (((flash->flash_id) >> 16) & 0xff) {
|
|
case 0x01:
|
|
printf ("AMD ");
|
|
break;
|
|
case 0x04:
|
|
printf("FUJITSU ");
|
|
break;
|
|
case 0x20:
|
|
printf("STM ");
|
|
break;
|
|
case 0xBF:
|
|
printf("SST ");
|
|
break;
|
|
case 0x89:
|
|
case 0xB0:
|
|
printf("INTEL ");
|
|
break;
|
|
default:
|
|
printf ("Unknown Vendor ");
|
|
break;
|
|
}
|
|
|
|
switch ((flash->flash_id) & 0xffff) {
|
|
case (uint16_t)AMD_ID_LV800T:
|
|
printf ("AM29LV800T\n");
|
|
break;
|
|
case (uint16_t)AMD_ID_LV800B:
|
|
printf ("AM29LV800B\n");
|
|
break;
|
|
case (uint16_t)AMD_ID_LV160T:
|
|
printf ("AM29LV160T\n");
|
|
break;
|
|
case (uint16_t)AMD_ID_LV160B:
|
|
printf ("AM29LV160B\n");
|
|
break;
|
|
case (uint16_t)AMD_ID_LV320T:
|
|
printf ("AM29LV320T\n");
|
|
break;
|
|
case (uint16_t)AMD_ID_LV320B:
|
|
printf ("AM29LV320B\n");
|
|
break;
|
|
case (uint16_t)INTEL_ID_28F800C3T:
|
|
printf ("28F800C3T\n");
|
|
break;
|
|
case (uint16_t)INTEL_ID_28F800C3B:
|
|
printf ("28F800C3B\n");
|
|
break;
|
|
case (uint16_t)INTEL_ID_28F160C3T:
|
|
printf ("28F160C3T\n");
|
|
break;
|
|
case (uint16_t)INTEL_ID_28F160C3B:
|
|
printf ("28F160C3B\n");
|
|
break;
|
|
case (uint16_t)INTEL_ID_28F320C3T:
|
|
printf ("28F320C3T\n");
|
|
break;
|
|
case (uint16_t)INTEL_ID_28F320C3B:
|
|
printf ("28F320C3B\n");
|
|
break;
|
|
case (uint16_t)INTEL_ID_28F640C3T:
|
|
printf ("28F640C3T\n");
|
|
break;
|
|
case (uint16_t)INTEL_ID_28F640C3B:
|
|
printf ("28F640C3B\n");
|
|
break;
|
|
default:
|
|
printf ("Unknown Chip Type\n");
|
|
break;
|
|
}
|
|
|
|
if (flash->size >= (1 << 20)) {
|
|
printf (" Size: %ld MB in %d Sectors\n",
|
|
flash->size >> 20, flash->sector_count);
|
|
} else {
|
|
printf (" Size: %ld kB in %d Sectors\n",
|
|
flash->size >> 10, flash->sector_count);
|
|
}
|
|
|
|
printf (" Sector Start Addresses:");
|
|
for (i = 0; i < flash->sector_count; ++i) {
|
|
/* Check if whole sector is erased*/
|
|
if (i != (flash->sector_count-1))
|
|
size = flash->start[i+1] - flash->start[i];
|
|
else
|
|
size = flash->start[0] + flash->size - flash->start[i];
|
|
|
|
erased = 1;
|
|
p = (volatile unsigned long *)flash->start[i];
|
|
size = size >> 2; /* divide by 4 for longword access */
|
|
for (k=0; k<size; k++) {
|
|
if (*p++ != 0xffffffff) {
|
|
erased = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((i % 5) == 0)
|
|
printf ("\n ");
|
|
|
|
printf (" %08lX%s%s",
|
|
flash->start[i],
|
|
erased ? " E" : " ",
|
|
flash->protect[i] ? "RO " : " ");
|
|
}
|
|
printf ("\n");
|
|
}
|