diff options
Diffstat (limited to 'roms/u-boot/board/esd/cpci2dp/flash.c')
-rw-r--r-- | roms/u-boot/board/esd/cpci2dp/flash.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/roms/u-boot/board/esd/cpci2dp/flash.c b/roms/u-boot/board/esd/cpci2dp/flash.c new file mode 100644 index 00000000..34bdc053 --- /dev/null +++ b/roms/u-boot/board/esd/cpci2dp/flash.c @@ -0,0 +1,68 @@ +/* + * (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) +{ + unsigned long size_b0; + int i; + uint pbcr; + unsigned long base_b0; + + /* 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 */ + + size_b0 = 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_b0, size_b0<<20); + } + + /* Setup offsets */ + flash_get_offsets (-size_b0, &flash_info[0]); + + /* Re-do sizing to get full correct info */ + mtdcr(EBC0_CFGADDR, PB0CR); + pbcr = mfdcr(EBC0_CFGDATA); + mtdcr(EBC0_CFGADDR, PB0CR); + base_b0 = -size_b0; + pbcr = (pbcr & 0x0001ffff) | base_b0 | (((size_b0/1024/1024)-1)<<17); + mtdcr(EBC0_CFGDATA, pbcr); + /* printf("PB1CR = %x\n", pbcr); */ + + /* Monitor protection ON by default */ + (void)flash_protect(FLAG_PROTECT_SET, + -monitor_flash_len, + 0xffffffff, + &flash_info[0]); + + flash_info[0].size = size_b0; + + return (size_b0); +} |