| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * (C) Copyright 2001 |
| 3 | * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 6 | */ |
| 7 | |
| 8 | #include <common.h> |
| 9 | #include <asm/ppc4xx.h> |
| 10 | #include <asm/processor.h> |
| 11 | |
| 12 | /* |
| 13 | * include common flash code (for esd boards) |
| 14 | */ |
| 15 | #include "../common/flash.c" |
| 16 | |
| 17 | /*----------------------------------------------------------------------- |
| 18 | * Functions |
| 19 | */ |
| 20 | static ulong flash_get_size (vu_long *addr, flash_info_t *info); |
| 21 | static void flash_get_offsets (ulong base, flash_info_t *info); |
| 22 | |
| 23 | |
| 24 | /*----------------------------------------------------------------------- |
| 25 | */ |
| 26 | |
| 27 | unsigned long flash_init (void) |
| 28 | { |
| 29 | unsigned long size_b0; |
| 30 | int i; |
| 31 | |
| 32 | /* Init: no FLASHes known */ |
| 33 | for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) { |
| 34 | flash_info[i].flash_id = FLASH_UNKNOWN; |
| 35 | } |
| 36 | |
| 37 | /* Static FLASH Bank configuration here - FIXME XXX */ |
| 38 | |
| 39 | size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]); |
| 40 | |
| 41 | if (flash_info[0].flash_id == FLASH_UNKNOWN) { |
| 42 | printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", |
| 43 | size_b0, size_b0<<20); |
| 44 | } |
| 45 | |
| 46 | /* Setup offsets */ |
| 47 | flash_get_offsets (-size_b0, &flash_info[0]); |
| 48 | |
| 49 | /* Monitor protection ON by default */ |
| 50 | (void)flash_protect(FLAG_PROTECT_SET, |
| 51 | -monitor_flash_len, |
| 52 | 0xffffffff, |
| 53 | &flash_info[0]); |
| 54 | |
| 55 | flash_info[0].size = size_b0; |
| 56 | |
| 57 | return (size_b0); |
| 58 | } |