In message <[EMAIL PROTECTED]> you wrote:
> This patch adds a configurable flash auto protection list that can be used
> to make U-Boot protect flash regions in flash_init().
>
> The idea has been discussed on the u-boot mailing list starting
> on Nov 18th, 2007.
>
> Even this patch brings a new feature it is used as a bugfix for 4xx
> platforms where flash_init() does not completely protect the
> monitor's flash range in all situations.
>
> U-Boot protects the flash range from CFG_MONITOR_BASE to
> (CFG_MONITOR_BASE + monitor_flash_len - 1) by default. This does not
> include the reset vector at 0xfffffffc.
>
> Example:
> #define CFG_FLASH_AUTOPROTECT_LIST {{0xfff80000, 0x80000}}
>
> This config option will auto protect the last 512k of flash that
> contains the bootloader on board like APC405 and PMC405.
>
> Signed-off-by: Matthias Fuchs <[EMAIL PROTECTED]>
> ---
> drivers/mtd/cfi_flash.c | 21 +++++++++++++++++++++
> 1 files changed, 21 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c
> index e3cfb8a..fad9e8b 100644
> --- a/drivers/mtd/cfi_flash.c
> +++ b/drivers/mtd/cfi_flash.c
> @@ -169,6 +169,17 @@ flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
> /* FLASH chips info */
> #define CFG_FLASH_CFI_WIDTH FLASH_CFI_8BIT
> #endif
>
> +struct apl_s {
> + ulong start;
> + ulong size;
> +};
> +
> +#if !defined(CFG_FLASH_AUTOPROTECT_LIST)
> +struct apl_s apl[] = {};
> +#else
> +struct apl_s apl[] = CFG_FLASH_AUTOPROTECT_LIST;
> +#endif
No. Please don't add any code nor data when CFG_FLASH_AUTOPROTECT_LIST
is undefined.
> typedef unsigned long flash_sect_t;
>
> /* CFI standard query structure */
> @@ -1966,6 +1977,16 @@ unsigned long flash_init (void)
> CFG_ENV_ADDR_REDUND + CFG_ENV_SIZE_REDUND - 1,
> flash_get_info(CFG_ENV_ADDR_REDUND));
> #endif
> +
> + for (i = 0; i < ARRAY_SIZE(apl); i++) {
> + debug ("autoprotecting from %08x to %08x\n",
> + apl[i].start, apl[i].start + apl[i].size - 1);
> + flash_protect (FLAG_PROTECT_SET,
> + apl[i].start,
> + apl[i].start + apl[i].size - 1,
> + flash_get_info (apl[i].start));
> + }
> +
No. Please don't add any code nor data when CFG_FLASH_AUTOPROTECT_LIST
is undefined.
NAK.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: [EMAIL PROTECTED]
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