diff options
author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2014-12-15 23:26:27 +0900 |
---|---|---|
committer | Tom Rini <trini@ti.com> | 2015-01-05 12:08:54 -0500 |
commit | 8eecbaf303f4472f9cb925e8694a90fb2812e187 (patch) | |
tree | 44702d8a43a57434822795d23f3cb620df83905b /board/gw8260/flash.c | |
parent | 87882f572703c18a15b35e7c2a4dc2225a16627c (diff) | |
download | u-boot-8eecbaf303f4472f9cb925e8694a90fb2812e187.tar.gz |
mpc8260: remove gw8260 board support
This board is still a non-generic board.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Oliver Brown <obrown@adventnetworks.com>
Diffstat (limited to 'board/gw8260/flash.c')
-rw-r--r-- | board/gw8260/flash.c | 502 |
1 files changed, 0 insertions, 502 deletions
diff --git a/board/gw8260/flash.c b/board/gw8260/flash.c deleted file mode 100644 index 0c4a9439f8..0000000000 --- a/board/gw8260/flash.c +++ /dev/null @@ -1,502 +0,0 @@ -/* - * (C) Copyright 2000 - * Marius Groeger <mgroeger@sysgo.de> - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * - * (C) Copyright 2000, 2001 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2001 - * Advent Networks, Inc. <http://www.adventnetworks.com> - * Oliver Brown <oliverb@alumni.utexas.net> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/*********************************************************************/ -/* DESCRIPTION: - * This file contains the flash routines for the GW8260 board. - * - * - * - * MODULE DEPENDENCY: - * None - * - * - * RESTRICTIONS/LIMITATIONS: - * - * Only supports the following flash devices: - * AMD 29F080B - * AMD 29F016D - * - * Copyright (c) 2001, Advent Networks, Inc. - * - */ -/*********************************************************************/ - -#include <common.h> -#include <mpc8260.h> - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; - -static ulong flash_get_size (vu_long *addr, flash_info_t *info); -static int write_word (flash_info_t *info, ulong dest, ulong data); - -/*********************************************************************/ -/* functions */ -/*********************************************************************/ - -/* - * NAME: flash_init() - initializes flash banks - * - * DESCRIPTION: - * This function initializes the flash bank(s). - * - * RETURNS: - * The size in bytes of the flash - * - * RESTRICTIONS/LIMITATIONS: - * - * - */ -unsigned long flash_init(void) -{ - int i; - - /* Init: no FLASHes known */ - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) - flash_info[i].flash_id = FLASH_UNKNOWN; - - /* for now, only support the 4 MB Flash SIMM */ - (void)flash_get_size((vu_long *) CONFIG_SYS_FLASH0_BASE, - &flash_info[0]); - /* - * protect monitor and environment sectors - */ -#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH0_BASE - flash_protect(FLAG_PROTECT_SET, - CONFIG_SYS_MONITOR_BASE, - CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1, - &flash_info[0]); -#endif - -#if defined(CONFIG_ENV_IS_IN_FLASH) && defined(CONFIG_ENV_ADDR) -#ifndef CONFIG_ENV_SIZE -#define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE -#endif - flash_protect(FLAG_PROTECT_SET, - CONFIG_ENV_ADDR, - CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[0]); -#endif - - return CONFIG_SYS_FLASH0_SIZE * 1024 * 1024; /*size */ -} - -/*********************************************************************/ -/* NAME: flash_print_info() - prints flash imformation */ -/* */ -/* DESCRIPTION: */ -/* This function prints the flash information. */ -/* */ -/* INPUTS: */ -/* flash_info_t *info - flash information structure */ -/* */ -/* OUTPUTS: */ -/* Displays flash information to console */ -/* */ -/* RETURNS: */ -/* None */ -/* */ -/* RESTRICTIONS/LIMITATIONS: */ -/* */ -/* */ -/*********************************************************************/ -void flash_print_info (flash_info_t *info) -{ - int i; - - if (info->flash_id == FLASH_UNKNOWN) { - printf ("missing or unknown FLASH type\n"); - return; - } - - switch ((info->flash_id >> 16) & 0xff) { - case 0x1: - printf ("AMD "); - break; - default: - printf ("Unknown Vendor "); - break; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case AMD_ID_F040B: - printf ("AM29F040B (4 Mbit)\n"); - break; - case AMD_ID_F080B: - printf ("AM29F080B (8 Mbit)\n"); - break; - case AMD_ID_F016D: - printf ("AM29F016D (16 Mbit)\n"); - break; - default: - printf ("Unknown Chip Type\n"); - break; - } - - printf (" Size: %ld MB in %d Sectors\n", - info->size >> 20, info->sector_count); - - printf (" Sector Start Addresses:"); - for (i=0; i<info->sector_count; ++i) { - if ((i % 5) == 0) - printf ("\n "); - printf (" %08lX%s", - info->start[i], - info->protect[i] ? " (RO)" : " " - ); - } - printf ("\n"); - return; -} - -/*********************************************************************/ -/* The following code cannot be run from FLASH! */ -/*********************************************************************/ - -/*********************************************************************/ -/* NAME: flash_get_size() - detects the flash size */ -/* */ -/* DESCRIPTION: */ -/* 1) Reads vendor ID and devices ID from the flash devices. */ -/* 2) Initializes flash info struct. */ -/* 3) Return the flash size */ -/* */ -/* INPUTS: */ -/* vu_long *addr - pointer to start of flash */ -/* flash_info_t *info - flash information structure */ -/* */ -/* OUTPUTS: */ -/* None */ -/* */ -/* RETURNS: */ -/* Size of the flash in bytes, or 0 if device id is unknown. */ -/* */ -/* RESTRICTIONS/LIMITATIONS: */ -/* Only supports the following devices: */ -/* AM29F080D */ -/* AM29F016D */ -/* */ -/*********************************************************************/ -static ulong flash_get_size (vu_long *addr, flash_info_t *info) -{ - short i; - vu_long vendor, devid; - ulong base = (ulong)addr; - - /*printf("addr = %08lx\n", (unsigned long)addr); */ - - /* Reset and Write auto select command: read Manufacturer ID */ - addr[0x0000] = 0xf0f0f0f0; - addr[0x0555] = 0xAAAAAAAA; - addr[0x02AA] = 0x55555555; - addr[0x0555] = 0x90909090; - udelay (1000); - - vendor = addr[0]; - /*printf("vendor = %08lx\n", vendor); */ - if (vendor != 0x01010101) { - info->size = 0; - goto out; - } - - devid = addr[1]; - /*printf("devid = %08lx\n", devid); */ - - if ((devid & 0xff) == AMD_ID_F080B) { - info->flash_id = (vendor & 0xff) << 16 | AMD_ID_F080B; - /* we have 16 sectors with 64KB each x 4 */ - info->sector_count = 16; - info->size = 4 * info->sector_count * 64*1024; - } else if ((devid & 0xff) == AMD_ID_F016D){ - info->flash_id = (vendor & 0xff) << 16 | AMD_ID_F016D; - /* we have 32 sectors with 64KB each x 4 */ - info->sector_count = 32; - info->size = 4 * info->sector_count * 64*1024; - } else { - info->size = 0; - goto out; - } - /*printf("sector count = %08x\n", info->sector_count); */ - /* check for protected sectors */ - for (i = 0; i < info->sector_count; i++) { - /* sector base address */ - info->start[i] = base + i * (info->size / info->sector_count); - /* read sector protection at sector address, (A7 .. A0) = 0x02 */ - /* D0 = 1 if protected */ - addr = (volatile unsigned long *)(info->start[i]); - info->protect[i] = addr[2] & 1; - } - - /* reset command */ - addr = (vu_long *)info->start[0]; - - out: - addr[0] = 0xf0f0f0f0; - - /*printf("size = %08x\n", info->size); */ - return info->size; -} - -/*********************************************************************/ -/* NAME: flash_erase() - erases flash by sector */ -/* */ -/* DESCRIPTION: */ -/* This function erases flash sectors starting for s_first to */ -/* s_last. */ -/* */ -/* INPUTS: */ -/* flash_info_t *info - flash information structure */ -/* int s_first - first sector to erase */ -/* int s_last - last sector to erase */ -/* */ -/* OUTPUTS: */ -/* None */ -/* */ -/* RETURNS: */ -/* Returns 0 for success, 1 for failure. */ -/* */ -/* RESTRICTIONS/LIMITATIONS: */ -/* */ -/*********************************************************************/ -int flash_erase (flash_info_t *info, int s_first, int s_last) -{ - vu_long *addr = (vu_long*)(info->start[0]); - int flag, prot, sect, l_sect; - ulong start, now, last; - - if ((s_first < 0) || (s_first > s_last)) { - if (info->flash_id == FLASH_UNKNOWN) { - printf ("- missing\n"); - } else { - printf ("- no sectors to erase\n"); - } - return 1; - } - - prot = 0; - for (sect = s_first; sect <= s_last; sect++) { - if (info->protect[sect]) { - prot++; - } - } - - if (prot) { - printf ("- Warning: %d protected sectors will not be erased!\n", - prot); - } else { - printf ("\n"); - } - - l_sect = -1; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - addr[0x0555] = 0xAAAAAAAA; - addr[0x02AA] = 0x55555555; - addr[0x0555] = 0x80808080; - addr[0x0555] = 0xAAAAAAAA; - addr[0x02AA] = 0x55555555; - udelay (100); - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect <= s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - addr = (vu_long*)(info->start[sect]); - addr[0] = 0x30303030; - l_sect = sect; - } - } - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* wait at least 80us - let's wait 1 ms */ - udelay (1000); - - /* - * We wait for the last triggered sector - */ - if (l_sect < 0) - goto DONE; - - start = get_timer (0); - last = start; - addr = (vu_long*)(info->start[l_sect]); - while ((addr[0] & 0x80808080) != 0x80808080) { - if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { - printf ("Timeout\n"); - return 1; - } - /* show that we're waiting */ - if ((now - last) > 1000) { /* every second */ - serial_putc ('.'); - last = now; - } - } - - DONE: - /* reset to read mode */ - addr = (volatile unsigned long *)info->start[0]; - addr[0] = 0xF0F0F0F0; /* reset bank */ - - printf (" done\n"); - return 0; -} - -/*********************************************************************/ -/* NAME: write_buff() - writes a buffer to flash */ -/* */ -/* DESCRIPTION: */ -/* This function copies a buffer, *src, to flash. */ -/* */ -/* INPUTS: */ -/* flash_info_t *info - flash information structure */ -/* uchar *src - pointer to buffer to write to flash */ -/* ulong addr - address to start write at */ -/* ulong cnt - number of bytes to write to flash */ -/* */ -/* OUTPUTS: */ -/* None */ -/* */ -/* RETURNS: */ -/* 0 - OK */ -/* 1 - write timeout */ -/* 2 - Flash not erased */ -/* */ -/* RESTRICTIONS/LIMITATIONS: */ -/* */ -/*********************************************************************/ -int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) -{ - ulong cp, wp, data; - int i, l, rc; - - wp = (addr & ~3); /* get lower word aligned address */ - - /* - * handle unaligned start bytes - */ - if ((l = addr - wp) != 0) { - data = 0; - 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)); -} - -/*********************************************************************/ -/* NAME: write_word() - writes a word to flash */ -/* */ -/* DESCRIPTION: */ -/* This writes a single word to flash. */ -/* */ -/* INPUTS: */ -/* flash_info_t *info - flash information structure */ -/* ulong dest - address to write */ -/* ulong data - data to write */ -/* */ -/* OUTPUTS: */ -/* None */ -/* */ -/* RETURNS: */ -/* 0 - OK */ -/* 1 - write timeout */ -/* 2 - Flash not erased */ -/* */ -/* RESTRICTIONS/LIMITATIONS: */ -/* */ -/*********************************************************************/ -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(); - - addr[0x0555] = 0xAAAAAAAA; - addr[0x02AA] = 0x55555555; - addr[0x0555] = 0xA0A0A0A0; - - *((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) & 0x80808080) != (data & 0x80808080)) { - if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { - return (1); - } - } - return (0); -} -/*********************************************************************/ -/* End of flash.c */ -/*********************************************************************/ |