| /* |
| * (C) Copyright 2001 |
| * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #include <common.h> |
| #include <asm/ppc4xx.h> |
| #include <asm/processor.h> |
| |
| /* |
| * include common flash code (for esd boards) |
| */ |
| #include "../common/flash.c" |
| |
| /*----------------------------------------------------------------------- |
| * Functions |
| */ |
| static ulong flash_get_size (vu_long * addr, flash_info_t * info); |
| static void flash_get_offsets (ulong base, flash_info_t * info); |
| |
| /*----------------------------------------------------------------------- |
| */ |
| |
| unsigned long flash_init (void) |
| { |
| #ifdef __DEBUG_START_FROM_SRAM__ |
| return CONFIG_SYS_DUMMY_FLASH_SIZE; |
| #else |
| unsigned long size; |
| int i; |
| uint pbcr; |
| unsigned long base; |
| int size_val = 0; |
| |
| debug("[%s, %d] Entering ...\n", __FUNCTION__, __LINE__); |
| debug("[%s, %d] flash_info = 0x%p ...\n", __func__, __LINE__, |
| flash_info); |
| |
| /* Init: no FLASHes known */ |
| for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) { |
| flash_info[i].flash_id = FLASH_UNKNOWN; |
| } |
| |
| /* Static FLASH Bank configuration here - FIXME XXX */ |
| |
| debug("[%s, %d] Calling flash_get_size ...\n", __FUNCTION__, __LINE__); |
| size = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]); |
| |
| if (flash_info[0].flash_id == FLASH_UNKNOWN) { |
| printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", |
| size, size<<20); |
| } |
| |
| debug("[%s, %d] Test point ...\n", __FUNCTION__, __LINE__); |
| |
| /* Setup offsets */ |
| flash_get_offsets (-size, &flash_info[0]); |
| debug("[%s, %d] Test point ...\n", __FUNCTION__, __LINE__); |
| |
| /* Re-do sizing to get full correct info */ |
| mtdcr(EBC0_CFGADDR, PB0CR); |
| pbcr = mfdcr(EBC0_CFGDATA); |
| mtdcr(EBC0_CFGADDR, PB0CR); |
| base = -size; |
| switch (size) { |
| case 1 << 20: |
| size_val = 0; |
| break; |
| case 2 << 20: |
| size_val = 1; |
| break; |
| case 4 << 20: |
| size_val = 2; |
| break; |
| case 8 << 20: |
| size_val = 3; |
| break; |
| case 16 << 20: |
| size_val = 4; |
| break; |
| } |
| pbcr = (pbcr & 0x0001ffff) | base | (size_val << 17); |
| mtdcr(EBC0_CFGDATA, pbcr); |
| debug("[%s, %d] Test point ...\n", __FUNCTION__, __LINE__); |
| |
| /* Monitor protection ON by default */ |
| (void)flash_protect(FLAG_PROTECT_SET, |
| -CONFIG_SYS_MONITOR_LEN, |
| 0xffffffff, |
| &flash_info[0]); |
| |
| debug("[%s, %d] Test point ...\n", __FUNCTION__, __LINE__); |
| flash_info[0].size = size; |
| |
| return (size); |
| #endif |
| } |
