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@@ -1,564 +0,0 @@
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-/*
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- * (C) Copyright 2004
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- * Xiaogeng (Shawn) Jin, Agilent Technologies, xiaogeng_jin@agilent.com
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- *
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- * (C) Copyright 2001
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- * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
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- *
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- * (C) Copyright 2001-2004
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- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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- *
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- * (C) Copyright 2003
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- * Texas Instruments, <www.ti.com>
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- * Kshitij Gupta <Kshitij@ti.com>
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- *
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- * See file CREDITS for list of people who contributed to this
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- * project.
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License as
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- * published by the Free Software Foundation; either version 2 of
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- * the License, or (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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- * MA 02111-1307 USA
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- */
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-
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-#include <common.h>
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-#include <linux/byteorder/swab.h>
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-
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-#define DEBUG
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-
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-#define PHYS_FLASH_SECT_SIZE 0x00040000 /* 256 KB sectors (x2) */
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-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
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-
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-/* Board support for 1 or 2 flash devices */
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-#define FLASH_PORT_WIDTH32
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-#undef FLASH_PORT_WIDTH16
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-
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-#ifdef FLASH_PORT_WIDTH16
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-#define FLASH_PORT_WIDTH ushort
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-#define FLASH_PORT_WIDTHV vu_short
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-#define SWAP(x) __swab16(x)
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-#else
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-#define FLASH_PORT_WIDTH ulong
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-#define FLASH_PORT_WIDTHV vu_long
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-#define SWAP(x) __swab32(x)
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-#endif
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-
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-#define FPW FLASH_PORT_WIDTH
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-#define FPWV FLASH_PORT_WIDTHV
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-
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-#define mb() __asm__ __volatile__ ("" : : : "memory")
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-
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-
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-/* Flash Organization Structure */
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-typedef struct OrgDef {
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- unsigned int sector_number;
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- unsigned int sector_size;
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-} OrgDef;
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-
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-
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-/* Flash Organizations */
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-OrgDef OrgIntel_28F256L18T[] = {
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- {4, 32 * 1024}, /* 4 * 32kBytes sectors */
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- {255, 128 * 1024}, /* 255 * 128kBytes sectors */
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-};
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-
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-/* CP control register base address */
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-#define CPCR_BASE 0xCB000000
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-#define CPCR_EXTRABANK 0x8
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-#define CPCR_FLASHSIZE 0x4
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-#define CPCR_FLWREN 0x2
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-#define CPCR_FLVPPEN 0x1
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-
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-/*-----------------------------------------------------------------------
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- * Functions
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- */
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-unsigned long flash_init (void);
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-static ulong flash_get_size (FPW * addr, flash_info_t * info);
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-static int write_data (flash_info_t * info, ulong dest, FPW data);
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-static void flash_get_offsets (ulong base, flash_info_t * info);
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-void inline spin_wheel (void);
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-void flash_print_info (flash_info_t * info);
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-void flash_unprotect_sectors (FPWV * addr);
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-int flash_erase (flash_info_t * info, int s_first, int s_last);
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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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-/*-----------------------------------------------------------------------
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- */
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-unsigned long flash_init (void)
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-{
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- int i, nbanks;
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- ulong size = 0;
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- vu_long *cpcr = (vu_long *)CPCR_BASE;
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-
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- /* Check if there is an extra bank of flash */
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- if (cpcr[1] & CPCR_EXTRABANK)
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- nbanks = 2;
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- else
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- nbanks = 1;
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-
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- if (nbanks > CONFIG_SYS_MAX_FLASH_BANKS)
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- nbanks = CONFIG_SYS_MAX_FLASH_BANKS;
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-
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- /* Enable flash write */
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- cpcr[1] |= 3;
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-
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- for (i = 0; i < nbanks; i++) {
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- flash_get_size ((FPW *)(CONFIG_SYS_FLASH_BASE + size), &flash_info[i]);
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- flash_get_offsets (CONFIG_SYS_FLASH_BASE + size, &flash_info[i]);
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- size += flash_info[i].size;
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- }
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-
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-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
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- /* monitor protection */
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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, &flash_info[0]);
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-#endif
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-
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-#ifdef CONFIG_ENV_IS_IN_FLASH
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- /* ENV protection ON */
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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_SECT_SIZE - 1,
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- &flash_info[0]);
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-#endif
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-
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- /* Protect SIB (0x24800000) and bootMonitor (0x24c00000) */
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- flash_protect (FLAG_PROTECT_SET,
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- flash_info[0].start[62],
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- flash_info[0].start[63] + PHYS_FLASH_SECT_SIZE - 1,
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- &flash_info[0]);
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-
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- return size;
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-}
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-
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-/*-----------------------------------------------------------------------
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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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-
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- if (info->flash_id == FLASH_UNKNOWN) {
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- return;
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- }
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-
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- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
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- for (i = 0; i < info->sector_count; i++) {
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- info->start[i] = base + (i * PHYS_FLASH_SECT_SIZE);
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- info->protect[i] = 0;
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- }
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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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-
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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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-
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- switch (info->flash_id & FLASH_VENDMASK) {
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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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-
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- /* Integrator CP board uses 28F640J3C or 28F128J3C parts,
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- * which have the same device id numbers as 28F640J3A or
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- * 28F128J3A
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- */
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- switch (info->flash_id & FLASH_TYPEMASK) {
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- case FLASH_28F256L18T:
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- printf ("FLASH 28F256L18T\n");
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- break;
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- case FLASH_28F640J3A:
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- printf ("FLASH 28F640J3C\n");
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- break;
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- case FLASH_28F128J3A:
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- printf ("FLASH 28F128J3C\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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-
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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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-
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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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-/*
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- * The following code cannot be run from FLASH!
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- */
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-static ulong flash_get_size (FPW * addr, flash_info_t * info)
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-{
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- volatile FPW value;
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- vu_long *cpcr = (vu_long *)CPCR_BASE;
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- int nsects;
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-
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- /* Check the flash size */
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- if (cpcr[1] & CPCR_FLASHSIZE)
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- nsects = 128;
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- else
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- nsects = 64;
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-
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- if (nsects > CONFIG_SYS_MAX_FLASH_SECT)
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- nsects = CONFIG_SYS_MAX_FLASH_SECT;
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-
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- /* Write auto select command: read Manufacturer ID */
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- addr[0x5555] = (FPW) 0x00AA00AA;
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- addr[0x2AAA] = (FPW) 0x00550055;
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- addr[0x5555] = (FPW) 0x00900090;
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-
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- mb ();
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- value = addr[0];
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-
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- switch (value) {
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-
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- case (FPW) INTEL_MANUFACT:
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- info->flash_id = FLASH_MAN_INTEL;
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- break;
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-
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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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- addr[0] = (FPW) 0x00FF00FF; /* restore read mode */
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- return (0); /* no or unknown flash */
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- }
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-
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- mb ();
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- value = addr[1]; /* device ID */
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- switch (value) {
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-
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- case (FPW) (INTEL_ID_28F256L18T):
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- info->flash_id += FLASH_28F256L18T;
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- info->sector_count = 259;
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- info->size = 0x02000000;
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- break; /* => 32 MB */
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-
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- case (FPW) (INTEL_ID_28F640J3A):
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- info->flash_id += FLASH_28F640J3A;
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- info->sector_count = nsects;
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- info->size = nsects * PHYS_FLASH_SECT_SIZE;
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- break;
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-
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- case (FPW) (INTEL_ID_28F128J3A):
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- info->flash_id += FLASH_28F128J3A;
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- info->sector_count = nsects;
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- info->size = nsects * PHYS_FLASH_SECT_SIZE;
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- break;
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-
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- default:
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- info->flash_id = FLASH_UNKNOWN;
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- break;
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- }
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-
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- if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) {
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- printf ("** ERROR: sector count %d > max (%d) **\n",
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- info->sector_count, CONFIG_SYS_MAX_FLASH_SECT);
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- info->sector_count = CONFIG_SYS_MAX_FLASH_SECT;
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- }
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-
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- addr[0] = (FPW) 0x00FF00FF; /* restore read mode */
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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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-/* unprotects a sector for write and erase
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- * on some intel parts, this unprotects the entire chip, but it
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- * wont hurt to call this additional times per sector...
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- */
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-void flash_unprotect_sectors (FPWV * addr)
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-{
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- FPW status;
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-
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- *addr = (FPW) 0x00500050; /* clear status register */
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-
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- /* this sends the clear lock bit command */
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- *addr = (FPW) 0x00600060;
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- *addr = (FPW) 0x00D000D0;
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-
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- reset_timer_masked();
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- while (((status = *addr) & (FPW)0x00800080) != 0x00800080) {
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- if (get_timer_masked() > CONFIG_SYS_FLASH_ERASE_TOUT) {
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- printf("Timeout");
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- break;
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- }
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- }
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-
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- *addr = (FPW) 0x00FF00FF;
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-}
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-
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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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- int flag, prot, sect;
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- ulong type;
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- int rcode = 0;
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-
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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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-
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- type = (info->flash_id & FLASH_VENDMASK);
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- if ((type != FLASH_MAN_INTEL)) {
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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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-
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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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-
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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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-
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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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- FPWV *addr = (FPWV *) (info->start[sect]);
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- FPW status;
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-
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- printf ("Erasing sector %2d ... ", sect);
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-
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- /* Disable interrupts which might cause a timeout here */
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- flag = disable_interrupts ();
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-
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- /* flash_unprotect_sectors (addr); */
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-
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- /* arm simple, non interrupt dependent timer */
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- reset_timer_masked ();
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-
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- *addr = (FPW) 0x00500050; /* clear status register */
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- *addr = (FPW) 0x00200020; /* erase setup */
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- *addr = (FPW) 0x00D000D0; /* erase confirm */
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- mb();
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-
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- udelay(1000); /* Let's wait 1 ms */
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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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-
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- while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) {
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- if (get_timer_masked () > CONFIG_SYS_FLASH_ERASE_TOUT) {
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- *addr = (FPW)0x00700070;
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- status = *addr;
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- if ((status & (FPW) 0x00400040) == (FPW) 0x00400040) {
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- /* erase suspended? Resume it */
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- reset_timer_masked();
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- *addr = (FPW) 0x00D000D0;
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- } else {
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-#ifdef DEBUG
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- printf ("Timeout,0x%08lx\n", status);
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-#else
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- printf("Timeout\n");
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-#endif
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-
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- *addr = (FPW) 0x00500050;
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- *addr = (FPW) 0x00FF00FF; /* reset to read mode */
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- rcode = 1;
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- break;
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- }
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- }
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- }
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-
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- *addr = (FPW) 0x00FF00FF; /* resest to read mode */
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- printf (" done\n");
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- }
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- }
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-
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- return rcode;
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-}
|
|
|
-
|
|
|
-/*-----------------------------------------------------------------------
|
|
|
- * Copy memory to flash, returns:
|
|
|
- * 0 - OK
|
|
|
- * 1 - write timeout
|
|
|
- * 2 - Flash not erased
|
|
|
- * 4 - Flash not identified
|
|
|
- */
|
|
|
-int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
|
|
|
-{
|
|
|
- ulong cp, wp;
|
|
|
- FPW data;
|
|
|
- int count, i, l, rc, port_width;
|
|
|
-
|
|
|
- if (info->flash_id == FLASH_UNKNOWN) {
|
|
|
- return 4;
|
|
|
- }
|
|
|
-/* get lower word aligned address */
|
|
|
-#ifdef FLASH_PORT_WIDTH16
|
|
|
- wp = (addr & ~1);
|
|
|
- port_width = 2;
|
|
|
-#else
|
|
|
- wp = (addr & ~3);
|
|
|
- port_width = 4;
|
|
|
-#endif
|
|
|
-
|
|
|
- /*
|
|
|
- * 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 < port_width && cnt > 0; ++i) {
|
|
|
- data = (data << 8) | *src++;
|
|
|
- --cnt;
|
|
|
- ++cp;
|
|
|
- }
|
|
|
- for (; cnt == 0 && i < port_width; ++i, ++cp) {
|
|
|
- data = (data << 8) | (*(uchar *) cp);
|
|
|
- }
|
|
|
-
|
|
|
- if ((rc = write_data (info, wp, SWAP (data))) != 0) {
|
|
|
- return (rc);
|
|
|
- }
|
|
|
- wp += port_width;
|
|
|
- }
|
|
|
-
|
|
|
- /*
|
|
|
- * handle word aligned part
|
|
|
- */
|
|
|
- count = 0;
|
|
|
- while (cnt >= port_width) {
|
|
|
- data = 0;
|
|
|
- for (i = 0; i < port_width; ++i) {
|
|
|
- data = (data << 8) | *src++;
|
|
|
- }
|
|
|
- if ((rc = write_data (info, wp, SWAP (data))) != 0) {
|
|
|
- return (rc);
|
|
|
- }
|
|
|
- wp += port_width;
|
|
|
- cnt -= port_width;
|
|
|
- if (count++ > 0x800) {
|
|
|
- spin_wheel ();
|
|
|
- count = 0;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if (cnt == 0) {
|
|
|
- return (0);
|
|
|
- }
|
|
|
-
|
|
|
- /*
|
|
|
- * handle unaligned tail bytes
|
|
|
- */
|
|
|
- data = 0;
|
|
|
- for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) {
|
|
|
- data = (data << 8) | *src++;
|
|
|
- --cnt;
|
|
|
- }
|
|
|
- for (; i < port_width; ++i, ++cp) {
|
|
|
- data = (data << 8) | (*(uchar *) cp);
|
|
|
- }
|
|
|
-
|
|
|
- return (write_data (info, wp, SWAP (data)));
|
|
|
-}
|
|
|
-
|
|
|
-/*-----------------------------------------------------------------------
|
|
|
- * Write a word or halfword to Flash, returns:
|
|
|
- * 0 - OK
|
|
|
- * 1 - write timeout
|
|
|
- * 2 - Flash not erased
|
|
|
- */
|
|
|
-static int write_data (flash_info_t * info, ulong dest, FPW data)
|
|
|
-{
|
|
|
- FPWV *addr = (FPWV *) dest;
|
|
|
- ulong status;
|
|
|
- int flag;
|
|
|
-
|
|
|
- /* Check if Flash is (sufficiently) erased */
|
|
|
- if ((*addr & data) != data) {
|
|
|
- printf ("not erased at %08lx (%lx)\n", (ulong) addr, *addr);
|
|
|
- return (2);
|
|
|
- }
|
|
|
-
|
|
|
- /* Disable interrupts which might cause a timeout here */
|
|
|
- flag = disable_interrupts ();
|
|
|
-
|
|
|
- /* flash_unprotect_sectors (addr); */
|
|
|
-
|
|
|
- *addr = (FPW) 0x00400040; /* write setup */
|
|
|
- *addr = data;
|
|
|
-
|
|
|
- mb();
|
|
|
-
|
|
|
- /* re-enable interrupts if necessary */
|
|
|
- if (flag)
|
|
|
- enable_interrupts();
|
|
|
-
|
|
|
- /* arm simple, non interrupt dependent timer */
|
|
|
- reset_timer_masked ();
|
|
|
-
|
|
|
- /* wait while polling the status register */
|
|
|
- while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) {
|
|
|
- if (get_timer_masked () > CONFIG_SYS_FLASH_WRITE_TOUT) {
|
|
|
-#ifdef DEBUG
|
|
|
- *addr = (FPW) 0x00700070;
|
|
|
- status = *addr;
|
|
|
- printf("## status=0x%08lx, addr=0x%p\n", status, addr);
|
|
|
-#endif
|
|
|
- *addr = (FPW) 0x00500050; /* clear status register cmd */
|
|
|
- *addr = (FPW) 0x00FF00FF; /* restore read mode */
|
|
|
- return (1);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- *addr = (FPW) 0x00FF00FF; /* restore read mode */
|
|
|
- return (0);
|
|
|
-}
|
|
|
-
|
|
|
-void inline spin_wheel (void)
|
|
|
-{
|
|
|
- static int p = 0;
|
|
|
- static char w[] = "\\/-";
|
|
|
-
|
|
|
- printf ("\010%c", w[p]);
|
|
|
- (++p == 3) ? (p = 0) : 0;
|
|
|
-}
|
Jean-Christophe PLAGNIOL-VILLARD