upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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600 lines
14 KiB
600 lines
14 KiB
/*
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* (C) Copyright 2003
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* MuLogic B.V.
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*
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* (C) Copyright 2001
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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 <asm/ppc4xx.h>
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#include <asm/u-boot.h>
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#include <asm/processor.h>
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flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
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#define FLASH_WORD_SIZE unsigned long
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#define FLASH_ID_MASK 0xFFFFFFFF
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/*-----------------------------------------------------------------------
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* Functions
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*/
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/* stolen from esteem192e/flash.c */
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ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info);
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static int write_word (flash_info_t *info, ulong dest, ulong data);
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static void flash_get_offsets (ulong base, flash_info_t *info);
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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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unsigned long size_b0, size_b1;
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int i;
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uint pbcr;
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unsigned long base_b0, base_b1;
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volatile FLASH_WORD_SIZE* flash_base;
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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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}
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/* Static FLASH Bank configuration here */
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/* Test for 8M Flash first */
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debug ("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_8M_PRELIM);
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flash_base = (volatile FLASH_WORD_SIZE*)(FLASH_BASE0_8M_PRELIM);
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size_b0 = flash_get_size(flash_base, &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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return 0;
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}
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if (size_b0 < 8*1024*1024) {
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/* Not quite 8M, try 4M Flash base address */
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debug ("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_4M_PRELIM);
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flash_base = (volatile FLASH_WORD_SIZE*)(FLASH_BASE0_4M_PRELIM);
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size_b0 = flash_get_size(flash_base, &flash_info[0]);
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}
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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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return 0;
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}
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/* Only one bank */
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if (CONFIG_SYS_MAX_FLASH_BANKS == 1) {
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/* Setup offsets */
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flash_get_offsets ((ulong)flash_base, &flash_info[0]);
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/* Monitor protection ON by default */
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(void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
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CONFIG_SYS_MONITOR_BASE+CONFIG_SYS_MONITOR_LEN-1, &flash_info[0]);
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size_b1 = 0 ;
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flash_info[0].size = size_b0;
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return(size_b0);
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}
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/* We have 2 banks */
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size_b1 = flash_get_size(flash_base, &flash_info[1]);
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/* Re-do sizing to get full correct info */
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if (size_b1) {
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mtdcr(EBC0_CFGADDR, PB0CR);
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pbcr = mfdcr(EBC0_CFGDATA);
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mtdcr(EBC0_CFGADDR, PB0CR);
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base_b1 = -size_b1;
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pbcr = (pbcr & 0x0001ffff) | base_b1 | (((size_b1/1024/1024)-1)<<17);
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mtdcr(EBC0_CFGDATA, pbcr);
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}
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if (size_b0) {
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mtdcr(EBC0_CFGADDR, PB1CR);
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pbcr = mfdcr(EBC0_CFGDATA);
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mtdcr(EBC0_CFGADDR, PB1CR);
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base_b0 = base_b1 - size_b0;
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pbcr = (pbcr & 0x0001ffff) | base_b0 | (((size_b0/1024/1024)-1)<<17);
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mtdcr(EBC0_CFGDATA, pbcr);
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}
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size_b0 = flash_get_size((volatile FLASH_WORD_SIZE *)base_b0, &flash_info[0]);
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flash_get_offsets (base_b0, &flash_info[0]);
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/* monitor protection ON by default */
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(void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
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CONFIG_SYS_MONITOR_BASE+CONFIG_SYS_MONITOR_LEN-1, &flash_info[0]);
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if (size_b1) {
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/* Re-do sizing to get full correct info */
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size_b1 = flash_get_size((volatile FLASH_WORD_SIZE *)base_b1, &flash_info[1]);
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flash_get_offsets (base_b1, &flash_info[1]);
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/* monitor protection ON by default */
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(void)flash_protect(FLAG_PROTECT_SET, base_b1+size_b1-CONFIG_SYS_MONITOR_LEN,
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base_b1+size_b1-1, &flash_info[1]);
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/* monitor protection OFF by default (one is enough) */
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(void)flash_protect(FLAG_PROTECT_CLEAR, base_b0+size_b0-CONFIG_SYS_MONITOR_LEN,
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base_b0+size_b0-1, &flash_info[0]);
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} else {
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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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return (size_b0 + size_b1);
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}
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/*-----------------------------------------------------------------------
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This code is specific to the AM29DL163/AM29DL232 for the QS850/QS823.
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*/
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static void flash_get_offsets (ulong base, flash_info_t *info)
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{
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int i;
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long large_sect_size;
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long small_sect_size;
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/* set up sector start adress table */
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large_sect_size = info->size / (info->sector_count - 8 + 1);
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small_sect_size = large_sect_size / 8;
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if (info->flash_id & FLASH_BTYPE) {
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/* set sector offsets for bottom boot block type */
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for (i = 0; i < 7; i++) {
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info->start[i] = base;
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base += small_sect_size;
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}
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for (; i < info->sector_count; i++) {
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info->start[i] = base;
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base += large_sect_size;
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}
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}
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else
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{
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/* set sector offsets for top boot block type */
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for (i = 0; i < (info->sector_count - 8); i++) {
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info->start[i] = base;
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base += large_sect_size;
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}
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for (; i < info->sector_count; i++) {
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info->start[i] = base;
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base += small_sect_size;
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}
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}
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}
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/*-----------------------------------------------------------------------
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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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uchar *boottype;
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uchar botboot[]=", bottom boot sect)\n";
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uchar topboot[]=", top boot sector)\n";
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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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case FLASH_MAN_SST:
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printf ("SST ");
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break;
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case FLASH_MAN_STM:
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printf ("STM ");
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break;
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case FLASH_MAN_INTEL:
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printf ("INTEL ");
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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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if (info->flash_id & 0x0001 ) {
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boottype = botboot;
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} else {
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boottype = topboot;
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}
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switch (info->flash_id & FLASH_TYPEMASK) {
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case FLASH_AM160B:
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printf ("AM29LV160B (16 Mbit%s",boottype);
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break;
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case FLASH_AM160T:
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printf ("AM29LV160T (16 Mbit%s",boottype);
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break;
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case FLASH_AMDL163T:
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printf ("AM29DL163T (16 Mbit%s",boottype);
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break;
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case FLASH_AMDL163B:
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printf ("AM29DL163B (16 Mbit%s",boottype);
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break;
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case FLASH_AM320B:
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printf ("AM29LV320B (32 Mbit%s",boottype);
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break;
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case FLASH_AM320T:
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printf ("AM29LV320T (32 Mbit%s",boottype);
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break;
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case FLASH_AMDL323T:
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printf ("AM29DL323T (32 Mbit%s",boottype);
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break;
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case FLASH_AMDL323B:
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printf ("AM29DL323B (32 Mbit%s",boottype);
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break;
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case FLASH_AMDL322T:
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printf ("AM29DL322T (32 Mbit%s",boottype);
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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", info->start[i],
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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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ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info)
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{
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short i;
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ulong base = (ulong)addr;
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FLASH_WORD_SIZE value;
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/* Write auto select command: read Manufacturer ID */
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/*
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* Note: if it is an AMD flash and the word at addr[0000]
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* is 0x00890089 this routine will think it is an Intel
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* flash device and may(most likely) cause trouble.
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*/
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addr[0x0000] = 0x00900090;
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if(addr[0x0000] != 0x00890089){
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addr[0x0555] = 0x00AA00AA;
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addr[0x02AA] = 0x00550055;
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addr[0x0555] = 0x00900090;
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}
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value = addr[0];
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switch (value) {
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case (AMD_MANUFACT & FLASH_ID_MASK):
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info->flash_id = FLASH_MAN_AMD;
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break;
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case (FUJ_MANUFACT & FLASH_ID_MASK):
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info->flash_id = FLASH_MAN_FUJ;
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break;
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case (STM_MANUFACT & FLASH_ID_MASK):
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info->flash_id = FLASH_MAN_STM;
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break;
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case (SST_MANUFACT & FLASH_ID_MASK):
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info->flash_id = FLASH_MAN_SST;
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break;
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case (INTEL_MANUFACT & FLASH_ID_MASK):
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info->flash_id = FLASH_MAN_INTEL;
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break;
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default:
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info->flash_id = FLASH_UNKNOWN;
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info->sector_count = 0;
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info->size = 0;
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return (0); /* no or unknown flash */
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}
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value = addr[1]; /* device ID */
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switch (value) {
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case (AMD_ID_LV160T & FLASH_ID_MASK):
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info->flash_id += FLASH_AM160T;
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info->sector_count = 35;
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info->size = 0x00400000;
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break; /* => 4 MB */
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case (AMD_ID_LV160B & FLASH_ID_MASK):
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info->flash_id += FLASH_AM160B;
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info->sector_count = 35;
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info->size = 0x00400000;
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break; /* => 4 MB */
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case (AMD_ID_DL163T & FLASH_ID_MASK):
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info->flash_id += FLASH_AMDL163T;
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info->sector_count = 39;
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info->size = 0x00400000;
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break; /* => 4 MB */
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case (AMD_ID_DL163B & FLASH_ID_MASK):
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info->flash_id += FLASH_AMDL163B;
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info->sector_count = 39;
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info->size = 0x00400000;
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break; /* => 4 MB */
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case (AMD_ID_DL323T & FLASH_ID_MASK):
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info->flash_id += FLASH_AMDL323T;
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info->sector_count = 71;
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info->size = 0x00800000;
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break; /* => 8 MB */
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case (AMD_ID_DL323B & FLASH_ID_MASK):
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info->flash_id += FLASH_AMDL323B;
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info->sector_count = 71;
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info->size = 0x00800000;
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break; /* => 8 MB */
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case (AMD_ID_DL322T & FLASH_ID_MASK):
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info->flash_id += FLASH_AMDL322T;
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info->sector_count = 71;
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info->size = 0x00800000;
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break; /* => 8 MB */
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default:
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/* FIXME*/
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info->flash_id = FLASH_UNKNOWN;
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return (0); /* => no or unknown flash */
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}
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flash_get_offsets(base, info);
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/* check for protected sectors */
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for (i = 0; i < info->sector_count; i++) {
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/* read sector protection at sector address, (A7 .. A0) = 0x02 */
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/* D0 = 1 if protected */
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addr = (volatile FLASH_WORD_SIZE *)(info->start[i]);
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info->protect[i] = addr[2] & 1;
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}
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/*
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* Prevent writes to uninitialized FLASH.
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*/
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if (info->flash_id != FLASH_UNKNOWN) {
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addr = (volatile FLASH_WORD_SIZE *)info->start[0];
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*addr = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */
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}
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return (info->size);
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}
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/*-----------------------------------------------------------------------
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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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volatile FLASH_WORD_SIZE *addr=(volatile FLASH_WORD_SIZE*)(info->start[0]);
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int flag, prot, sect, l_sect;
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ulong start, now, last;
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int rcode = 0;
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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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}
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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 - aborted\n");
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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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}
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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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addr[0x0555] = 0x00AA00AA;
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addr[0x02AA] = 0x00550055;
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addr[0x0555] = 0x00800080;
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addr[0x0555] = 0x00AA00AA;
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addr[0x02AA] = 0x00550055;
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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 = (volatile FLASH_WORD_SIZE *)(info->start[sect]);
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addr[0] = (0x00300030 & FLASH_ID_MASK);
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l_sect = sect;
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}
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}
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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 = (volatile FLASH_WORD_SIZE*)(info->start[l_sect]);
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while ((addr[0] & (0x00800080&FLASH_ID_MASK)) !=
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(0x00800080&FLASH_ID_MASK) )
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{
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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 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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serial_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 FLASH_WORD_SIZE *)info->start[0];
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addr[0] = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */
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printf (" done\n");
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return rcode;
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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 l;
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int i, 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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if ((l = addr - wp) != 0) {
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data = 0;
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for (i=0, cp=wp; i<l; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *)cp);
|
|
}
|
|
for (; i<4 && cnt>0; ++i) {
|
|
data = (data << 8) | *src++;
|
|
--cnt;
|
|
++cp;
|
|
}
|
|
for (; cnt==0 && i<4; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *)cp);
|
|
}
|
|
|
|
if ((rc = write_word(info, wp, data)) != 0) {
|
|
return (rc);
|
|
}
|
|
wp += 4;
|
|
}
|
|
|
|
/*
|
|
* handle word aligned part
|
|
*/
|
|
while (cnt >= 4) {
|
|
data = 0;
|
|
for (i=0; i<4; ++i) {
|
|
data = (data << 8) | *src++;
|
|
}
|
|
if ((rc = write_word(info, wp, data)) != 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)
|
|
{
|
|
vu_long *addr = (vu_long*)(info->start[0]);
|
|
ulong start;
|
|
int flag;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if ((*((vu_long *)dest) & data) != data) {
|
|
return (2);
|
|
}
|
|
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
|
|
/* AMD stuff */
|
|
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);
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|