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https://github.com/brain-hackers/u-boot-brain
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1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
/*
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* (C) Copyright 2006
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* Stefan Roese, DENX Software Engineering, sr@denx.de.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/arch/ixp425.h>
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#if !defined(CONFIG_FLASH_CFI_DRIVER)
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/*
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* include common flash code (for esd boards)
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*/
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#include "../common/flash.c"
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/*
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* Prototypes
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*/
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static ulong flash_get_size (vu_long * addr, flash_info_t * info);
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static inline ulong ld(ulong x)
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{
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ulong k = 0;
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while (x >>= 1)
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++k;
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return k;
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}
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unsigned long flash_init(void)
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{
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unsigned long size;
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int i;
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/* Init: no FLASHes known */
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for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; i++)
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flash_info[i].flash_id = FLASH_UNKNOWN;
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size = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
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if (flash_info[0].flash_id == FLASH_UNKNOWN)
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printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
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size, size<<20);
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/* Reconfigure CS0 to actual FLASH size */
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*IXP425_EXP_CS0 = (*IXP425_EXP_CS0 & ~0x00003C00) | ((ld(size) - 9) << 10);
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/* Monitor protection ON by default */
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flash_protect(FLAG_PROTECT_SET,
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CONFIG_SYS_MONITOR_BASE, CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
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&flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
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/* Environment protection ON by default */
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flash_protect(FLAG_PROTECT_SET,
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CONFIG_ENV_ADDR,
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CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
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&flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
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/* Redundant environment protection ON by default */
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flash_protect(FLAG_PROTECT_SET,
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CONFIG_ENV_ADDR_REDUND,
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CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
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&flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
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flash_info[0].size = size;
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return size;
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}
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#endif /* CONFIG_FLASH_CFI_DRIVER */
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