mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-30 00:21:06 +00:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
155 lines
4.3 KiB
C
155 lines
4.3 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.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
/*
|
|
* 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>
|
|
#include <asm/ppc440.h>
|
|
#include "bamboo.h"
|
|
|
|
#undef DEBUG
|
|
|
|
#ifdef DEBUG
|
|
#define DEBUGF(x...) printf(x)
|
|
#else
|
|
#define DEBUGF(x...)
|
|
#endif /* DEBUG */
|
|
|
|
flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
|
|
|
|
/*
|
|
* Mark big flash bank (16 bit instead of 8 bit access) in address with bit 0
|
|
*/
|
|
static unsigned long flash_addr_table[][CONFIG_SYS_MAX_FLASH_BANKS] = {
|
|
{0x87800001, 0xFFF00000, 0xFFF80000}, /* 0:boot from small flash */
|
|
{0x00000000, 0x00000000, 0x00000000}, /* 1:boot from pci 66 */
|
|
{0x87800001, 0x00000000, 0x00000000}, /* 0:boot from nand flash */
|
|
{0x87F00000, 0x87F80000, 0xFFC00001}, /* 3:boot from big flash 33*/
|
|
{0x87F00000, 0x87F80000, 0xFFC00001}, /* 4:boot from big flash 66*/
|
|
{0x00000000, 0x00000000, 0x00000000}, /* 5:boot from */
|
|
{0x00000000, 0x00000000, 0x00000000}, /* 6:boot from pci 66 */
|
|
{0x00000000, 0x00000000, 0x00000000}, /* 7:boot from */
|
|
{0x87C00001, 0xFFF00000, 0xFFF80000}, /* 0:boot from small flash */
|
|
};
|
|
|
|
/*
|
|
* 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 short index = 0;
|
|
int i;
|
|
unsigned long val;
|
|
unsigned long ebc_boot_size;
|
|
unsigned long boot_selection;
|
|
|
|
mfsdr(SDR0_PINSTP, val);
|
|
index = (val & SDR0_PSTRP0_BOOTSTRAP_MASK) >> 29;
|
|
|
|
if ((index == 5) || (index == 7)) {
|
|
/*
|
|
* Boot Settings in IIC EEprom address 0xA8 or 0xA4
|
|
* Read Serial Device Strap Register1 in PPC440EP
|
|
*/
|
|
mfsdr(SDR0_SDSTP1, val);
|
|
boot_selection = val & SDR0_SDSTP1_BOOT_SEL_MASK;
|
|
ebc_boot_size = val & SDR0_SDSTP1_EBC_ROM_BS_MASK;
|
|
|
|
switch(boot_selection) {
|
|
case SDR0_SDSTP1_BOOT_SEL_EBC:
|
|
switch(ebc_boot_size) {
|
|
case SDR0_SDSTP1_EBC_ROM_BS_16BIT:
|
|
index = 3;
|
|
break;
|
|
case SDR0_SDSTP1_EBC_ROM_BS_8BIT:
|
|
index = 0;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case SDR0_SDSTP1_BOOT_SEL_PCI:
|
|
index = 1;
|
|
break;
|
|
|
|
case SDR0_SDSTP1_BOOT_SEL_NDFC:
|
|
index = 2;
|
|
break;
|
|
}
|
|
} else if (index == 0) {
|
|
if (in8(FPGA_SETTING_REG) & FPGA_SET_REG_OP_CODE_FLASH_ABOVE) {
|
|
index = 8; /* sram below op code flash -> new index 8 */
|
|
}
|
|
}
|
|
|
|
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;
|
|
|
|
DEBUGF("Detection bank %d...\n", i);
|
|
/* 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]);
|
|
#if defined(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]);
|
|
#if defined(CONFIG_ENV_IS_IN_FLASH) && defined(CONFIG_ENV_ADDR_REDUND)
|
|
(void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
|
|
CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
|
|
&flash_info[i]);
|
|
#endif
|
|
#endif
|
|
|
|
total_b += flash_info[i].size;
|
|
}
|
|
|
|
return total_b;
|
|
}
|