From: TsiChung Liew Tsi-Chung.Liew@freescale.com
Signed-off-by: TsiChung Liew Tsi-Chung.Liew@freescale.com --- board/freescale/m5272c3/Makefile | 2 +- board/freescale/m5272c3/flash.c | 378 -------------------------------------- include/configs/M5272C3.h | 14 +- 3 files changed, 11 insertions(+), 383 deletions(-) delete mode 100644 board/freescale/m5272c3/flash.c
diff --git a/board/freescale/m5272c3/Makefile b/board/freescale/m5272c3/Makefile index cf07cf4..424ab1c 100644 --- a/board/freescale/m5272c3/Makefile +++ b/board/freescale/m5272c3/Makefile @@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
-COBJS = $(BOARD).o flash.o +COBJS = $(BOARD).o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS)) diff --git a/board/freescale/m5272c3/flash.c b/board/freescale/m5272c3/flash.c deleted file mode 100644 index 586a2cf..0000000 --- a/board/freescale/m5272c3/flash.c +++ /dev/null @@ -1,378 +0,0 @@ -/* - * (C) Copyright 2000-2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> - -#define PHYS_FLASH_1 CONFIG_SYS_FLASH_BASE -#define FLASH_BANK_SIZE 0x200000 - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; - -void flash_print_info (flash_info_t * info) -{ - int i; - - switch (info->flash_id & FLASH_VENDMASK) { - case (AMD_MANUFACT & FLASH_VENDMASK): - printf ("AMD: "); - break; - default: - printf ("Unknown Vendor "); - break; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case (AMD_ID_PL160CB & FLASH_TYPEMASK): - printf ("AM29PL160CB (16Mbit)\n"); - break; - default: - printf ("Unknown Chip Type\n"); - goto Done; - 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"); - - Done: - return; -} - - -unsigned long flash_init (void) -{ - int i, j; - ulong size = 0; - - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) { - ulong flashbase = 0; - - flash_info[i].flash_id = - (AMD_MANUFACT & FLASH_VENDMASK) | - (AMD_ID_PL160CB & FLASH_TYPEMASK); - flash_info[i].size = FLASH_BANK_SIZE; - flash_info[i].sector_count = CONFIG_SYS_MAX_FLASH_SECT; - memset (flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT); - if (i == 0) - flashbase = PHYS_FLASH_1; - else - panic ("configured to many flash banks!\n"); - - for (j = 0; j < flash_info[i].sector_count; j++) { - if (j == 0) { - /* 1st is 16 KiB */ - flash_info[i].start[j] = flashbase; - } - if ((j >= 1) && (j <= 2)) { - /* 2nd and 3rd are 8 KiB */ - flash_info[i].start[j] = - flashbase + 0x4000 + 0x2000 * (j - 1); - } - if (j == 3) { - /* 4th is 224 KiB */ - flash_info[i].start[j] = flashbase + 0x8000; - } - if ((j >= 4) && (j <= 10)) { - /* rest is 256 KiB */ - flash_info[i].start[j] = - flashbase + 0x40000 + 0x40000 * (j - - 4); - } - } - size += flash_info[i].size; - } - - flash_protect (FLAG_PROTECT_SET, - CONFIG_SYS_FLASH_BASE, - CONFIG_SYS_FLASH_BASE + 0x3ffff, &flash_info[0]); - - return size; -} - - -#define CMD_READ_ARRAY 0x00F0 -#define CMD_UNLOCK1 0x00AA -#define CMD_UNLOCK2 0x0055 -#define CMD_ERASE_SETUP 0x0080 -#define CMD_ERASE_CONFIRM 0x0030 -#define CMD_PROGRAM 0x00A0 -#define CMD_UNLOCK_BYPASS 0x0020 - -#define MEM_FLASH_ADDR1 (*(volatile u16 *)(CONFIG_SYS_FLASH_BASE + (0x00000555<<1))) -#define MEM_FLASH_ADDR2 (*(volatile u16 *)(CONFIG_SYS_FLASH_BASE + (0x000002AA<<1))) - -#define BIT_ERASE_DONE 0x0080 -#define BIT_RDY_MASK 0x0080 -#define BIT_PROGRAM_ERROR 0x0020 -#define BIT_TIMEOUT 0x80000000 /* our flag */ - -#define READY 1 -#define ERR 2 -#define TMO 4 - - -int flash_erase (flash_info_t * info, int s_first, int s_last) -{ - ulong result; - int iflag, cflag, prot, sect; - int rc = ERR_OK; - int chip1; - - /* first look for protection bits */ - - if (info->flash_id == FLASH_UNKNOWN) - return ERR_UNKNOWN_FLASH_TYPE; - - if ((s_first < 0) || (s_first > s_last)) { - return ERR_INVAL; - } - - if ((info->flash_id & FLASH_VENDMASK) != - (AMD_MANUFACT & FLASH_VENDMASK)) { - return ERR_UNKNOWN_FLASH_VENDOR; - } - - prot = 0; - for (sect = s_first; sect <= s_last; ++sect) { - if (info->protect[sect]) { - prot++; - } - } - if (prot) - return ERR_PROTECTED; - - /* - * Disable interrupts which might cause a timeout - * here. Remember that our exception vectors are - * at address 0 in the flash, and we don't want a - * (ticker) exception to happen while the flash - * chip is in programming mode. - */ - - cflag = icache_status (); - icache_disable (); - iflag = disable_interrupts (); - - printf ("\n"); - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect <= s_last && !ctrlc (); sect++) { - printf ("Erasing sector %2d ... ", sect); - - /* arm simple, non interrupt dependent timer */ - set_timer (0); - - if (info->protect[sect] == 0) { /* not protected */ - volatile u16 *addr = - (volatile u16 *) (info->start[sect]); - - MEM_FLASH_ADDR1 = CMD_UNLOCK1; - MEM_FLASH_ADDR2 = CMD_UNLOCK2; - MEM_FLASH_ADDR1 = CMD_ERASE_SETUP; - - MEM_FLASH_ADDR1 = CMD_UNLOCK1; - MEM_FLASH_ADDR2 = CMD_UNLOCK2; - *addr = CMD_ERASE_CONFIRM; - - /* wait until flash is ready */ - chip1 = 0; - - do { - result = *addr; - - /* check timeout */ - if (get_timer (0) > CONFIG_SYS_FLASH_ERASE_TOUT) { - MEM_FLASH_ADDR1 = CMD_READ_ARRAY; - chip1 = TMO; - break; - } - - if (!chip1 - && (result & 0xFFFF) & BIT_ERASE_DONE) - chip1 = READY; - - } while (!chip1); - - MEM_FLASH_ADDR1 = CMD_READ_ARRAY; - - if (chip1 == ERR) { - rc = ERR_PROG_ERROR; - goto outahere; - } - if (chip1 == TMO) { - rc = ERR_TIMOUT; - goto outahere; - } - - printf ("ok.\n"); - } else { /* it was protected */ - - printf ("protected!\n"); - } - } - - if (ctrlc ()) - printf ("User Interrupt!\n"); - - outahere: - /* allow flash to settle - wait 10 ms */ - udelay (10000); - - if (iflag) - enable_interrupts (); - - if (cflag) - icache_enable (); - - return rc; -} - -static int write_word (flash_info_t * info, ulong dest, ulong data) -{ - volatile u16 *addr = (volatile u16 *) dest; - ulong result; - int rc = ERR_OK; - int cflag, iflag; - int chip1; - - /* - * Check if Flash is (sufficiently) erased - */ - result = *addr; - if ((result & data) != data) - return ERR_NOT_ERASED; - - - /* - * Disable interrupts which might cause a timeout - * here. Remember that our exception vectors are - * at address 0 in the flash, and we don't want a - * (ticker) exception to happen while the flash - * chip is in programming mode. - */ - - cflag = icache_status (); - icache_disable (); - iflag = disable_interrupts (); - - MEM_FLASH_ADDR1 = CMD_UNLOCK1; - MEM_FLASH_ADDR2 = CMD_UNLOCK2; - MEM_FLASH_ADDR1 = CMD_PROGRAM; - *addr = data; - - /* arm simple, non interrupt dependent timer */ - set_timer (0); - - /* wait until flash is ready */ - chip1 = 0; - do { - result = *addr; - - /* check timeout */ - if (get_timer (0) > CONFIG_SYS_FLASH_ERASE_TOUT) { - chip1 = ERR | TMO; - break; - } - if (!chip1 && ((result & 0x80) == (data & 0x80))) - chip1 = READY; - - } while (!chip1); - - *addr = CMD_READ_ARRAY; - - if (chip1 == ERR || *addr != data) - rc = ERR_PROG_ERROR; - - if (iflag) - enable_interrupts (); - - if (cflag) - icache_enable (); - - return rc; -} - - -int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) -{ - ulong wp, data; - int rc; - - if (addr & 1) { - printf ("unaligned destination not supported\n"); - return ERR_ALIGN; - } - -#if 0 - if (cnt & 1) { - printf ("odd transfer sizes not supported\n"); - return ERR_ALIGN; - } -#endif - - wp = addr; - - if (addr & 1) { - data = (*((volatile u8 *) addr) << 8) | *((volatile u8 *) - src); - if ((rc = write_word (info, wp - 1, data)) != 0) { - return (rc); - } - src += 1; - wp += 1; - cnt -= 1; - } - - while (cnt >= 2) { - data = *((volatile u16 *) src); - if ((rc = write_word (info, wp, data)) != 0) { - return (rc); - } - src += 2; - wp += 2; - cnt -= 2; - } - - if (cnt == 1) { - data = (*((volatile u8 *) src) << 8) | - *((volatile u8 *) (wp + 1)); - if ((rc = write_word (info, wp, data)) != 0) { - return (rc); - } - src += 1; - wp += 1; - cnt -= 1; - } - - return ERR_OK; -} diff --git a/include/configs/M5272C3.h b/include/configs/M5272C3.h index 779d373..fc73d64 100644 --- a/include/configs/M5272C3.h +++ b/include/configs/M5272C3.h @@ -194,12 +194,18 @@ */ #define CONFIG_SYS_BOOTMAPSZ (CONFIG_SYS_SDRAM_BASE + (CONFIG_SYS_SDRAM_SIZE << 20))
-/*----------------------------------------------------------------------- +/* * FLASH organization */ -#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */ -#define CONFIG_SYS_MAX_FLASH_SECT 11 /* max number of sectors on one chip */ -#define CONFIG_SYS_FLASH_ERASE_TOUT 1000 +#define CONFIG_SYS_FLASH_CFI +#ifdef CONFIG_SYS_FLASH_CFI +# define CONFIG_FLASH_CFI_DRIVER 1 +# define CONFIG_SYS_FLASH_SIZE 0x800000 /* Max size that the board might have */ +# define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT +# define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */ +# define CONFIG_SYS_MAX_FLASH_SECT 137 /* max number of sectors on one chip */ +# define CONFIG_SYS_FLASH_PROTECTION /* "Real" (hardware) sectors protection */ +#endif
/*----------------------------------------------------------------------- * Cache Configuration