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Blackfin: fix booting with older bootroms (no EVT1)

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When dropping jump block support, the assumption was that all bootroms
supported entry point redirection via the EVT1 register.  Unfortunately,
this turned out to be incorrect for the oldest Blackfin parts (BF533-0.2
and older and BF561).  No one really noticed earlier because these parts
usually are booted by bypassing the bootrom entirely, and older BF533
parts are not supported at all (too many anomalies).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger
2009-04-24 23:39:41 -04:00
parent af2c37378f
commit 02778f2f1b
5 changed files with 32 additions and 3 deletions
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8
include/asm-blackfin/blackfin-config-pre.h
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@@ -54,6 +54,14 @@ static inline const char *get_bfin_boot_mode(int bfin_boot)
}
#endif
/* Most bootroms allow for EVT1 redirection */
#if (defined(__ADSPBF531__) || defined(__ADSPBF532__) || defined(__ADSPBF533__) \
&& __SILICON_REVISION__ < 3) || defined(__ADSPBF561__)
# undef CONFIG_BFIN_BOOTROM_USES_EVT1
#else
# define CONFIG_BFIN_BOOTROM_USES_EVT1
#endif
/* Define the default SPI CS used when booting out of SPI */
#if defined(__ADSPBF531__) || defined(__ADSPBF532__) || defined(__ADSPBF533__) || \
defined(__ADSPBF538__) || defined(__ADSPBF539__) || defined(__ADSPBF561__) || \