mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-03 21:48:15 +00:00
b36df56115
This patch moves some ppc4xx related headers from the common include directory (include/) to the powerpc specific one (arch/powerpc/include/asm/). This way to common include directory is not so cluttered with files. Signed-off-by: Stefan Roese <sr@denx.de>
151 lines
4.6 KiB
C
151 lines
4.6 KiB
C
/*
|
|
* (C) Copyright 2004-2005
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* (C) Copyright 2002 Jun Gu <jung@artesyncp.com>
|
|
* Add support for Am29F016D and dynamic switch setting.
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/*
|
|
* Modified 4/5/2001
|
|
* Wait for completion of each sector erase command issued
|
|
* 4/5/2001
|
|
* Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/ppc4xx.h>
|
|
#include <asm/processor.h>
|
|
|
|
#undef DEBUG
|
|
|
|
#ifdef DEBUG
|
|
#define DEBUGF(x...) printf(x)
|
|
#else
|
|
#define DEBUGF(x...)
|
|
#endif /* DEBUG */
|
|
|
|
#define BOOT_SMALL_FLASH 0x40 /* 01000000 */
|
|
#define FLASH_ONBD_N 2 /* 00000010 */
|
|
#define FLASH_SRAM_SEL 1 /* 00000001 */
|
|
#define FLASH_ONBD_N 2 /* 00000010 */
|
|
#define FLASH_SRAM_SEL 1 /* 00000001 */
|
|
|
|
#define BOOT_SMALL_FLASH_VAL 4
|
|
#define FLASH_ONBD_N_VAL 2
|
|
#define FLASH_SRAM_SEL_VAL 1
|
|
|
|
flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
|
|
|
|
static unsigned long flash_addr_table[8][CONFIG_SYS_MAX_FLASH_BANKS] = {
|
|
{0xFF800000, 0xFF880000, 0xFFC00000}, /* 0:000: configuraton 4 */
|
|
{0xFF900000, 0xFF980000, 0xFFC00000}, /* 1:001: configuraton 3 */
|
|
{0x00000000, 0x00000000, 0x00000000}, /* 2:010: configuraton 8 */
|
|
{0x00000000, 0x00000000, 0x00000000}, /* 3:011: configuraton 7 */
|
|
{0xFFE00000, 0xFFF00000, 0xFF800000}, /* 4:100: configuraton 2 */
|
|
{0xFFF00000, 0xFFF80000, 0xFF800000}, /* 5:101: configuraton 1 */
|
|
{0x00000000, 0x00000000, 0x00000000}, /* 6:110: configuraton 6 */
|
|
{0x00000000, 0x00000000, 0x00000000} /* 7:111: configuraton 5 */
|
|
};
|
|
|
|
/*
|
|
* include common flash code (for amcc boards)
|
|
*/
|
|
#include "../common/flash.c"
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Functions
|
|
*/
|
|
static ulong flash_get_size(vu_long * addr, flash_info_t * info);
|
|
static int write_word(flash_info_t * info, ulong dest, ulong data);
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
unsigned long flash_init(void)
|
|
{
|
|
unsigned long total_b = 0;
|
|
unsigned long size_b[CONFIG_SYS_MAX_FLASH_BANKS];
|
|
unsigned char *fpga_base = (unsigned char *)CONFIG_SYS_FPGA_BASE;
|
|
unsigned char switch_status;
|
|
unsigned short index = 0;
|
|
int i;
|
|
|
|
/* read FPGA base register FPGA_REG0 */
|
|
switch_status = *fpga_base;
|
|
|
|
/* check the bitmap of switch status */
|
|
if (switch_status & BOOT_SMALL_FLASH) {
|
|
index += BOOT_SMALL_FLASH_VAL;
|
|
}
|
|
if (switch_status & FLASH_ONBD_N) {
|
|
index += FLASH_ONBD_N_VAL;
|
|
}
|
|
if (switch_status & FLASH_SRAM_SEL) {
|
|
index += FLASH_SRAM_SEL_VAL;
|
|
}
|
|
|
|
DEBUGF("\n");
|
|
DEBUGF("FLASH: Index: %d\n", index);
|
|
|
|
/* Init: no FLASHes known */
|
|
for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
|
|
flash_info[i].flash_id = FLASH_UNKNOWN;
|
|
flash_info[i].sector_count = -1;
|
|
flash_info[i].size = 0;
|
|
|
|
/* check whether the address is 0 */
|
|
if (flash_addr_table[index][i] == 0) {
|
|
continue;
|
|
}
|
|
|
|
/* call flash_get_size() to initialize sector address */
|
|
size_b[i] =
|
|
flash_get_size((vu_long *) flash_addr_table[index][i],
|
|
&flash_info[i]);
|
|
flash_info[i].size = size_b[i];
|
|
if (flash_info[i].flash_id == FLASH_UNKNOWN) {
|
|
printf
|
|
("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
|
|
i, size_b[i], size_b[i] << 20);
|
|
flash_info[i].sector_count = -1;
|
|
flash_info[i].size = 0;
|
|
}
|
|
|
|
/* Monitor protection ON by default */
|
|
(void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
|
|
CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1,
|
|
&flash_info[i]);
|
|
#ifdef CONFIG_ENV_IS_IN_FLASH
|
|
(void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
|
|
CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
|
|
&flash_info[i]);
|
|
(void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
|
|
CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
|
|
&flash_info[i]);
|
|
#endif
|
|
|
|
total_b += flash_info[i].size;
|
|
}
|
|
|
|
return total_b;
|
|
}
|