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ColdFire: Relocate vector table - mcf5445x

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Newer ColdFire processors family boot from address 0 instead of
0xFFnn_nnnn. When the boot flash base chip select is set at new
location instead of 0, an un-predictable error will occur if
there is an vector being trigger and refer it to an invalid
address or the vector table handler is not existed at address
0.

Signed-off-by: TsiChung Liew <tsicliew@gmail.com>
This commit is contained in:
TsiChung Liew 2010-03-11 15:04:21 -06:00
parent fa9da59621
commit 68e4e76af5
1 changed files with 9 additions and 0 deletions
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9
cpu/mcf5445x/cpu_init.c
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@ -28,6 +28,7 @@
#include <common.h>
#include <watchdog.h>
#include <asm/immap.h>
#include <asm/processor.h>
#include <asm/rtc.h>
#if defined(CONFIG_CMD_NET)
@ -105,6 +106,14 @@ void cpu_init_f(void)
fbcs->csmr5 = CONFIG_SYS_CS5_MASK;
#endif
/*
* now the flash base address is no longer at 0 (Newer ColdFire family
* boot at address 0 instead of 0xFFnn_nnnn). The vector table must
* also move to the new location.
*/
if (CONFIG_SYS_CS0_BASE != 0)
setvbr(CONFIG_SYS_CS0_BASE);
#ifdef CONFIG_FSL_I2C
gpio->par_feci2c = GPIO_PAR_FECI2C_SCL_SCL | GPIO_PAR_FECI2C_SDA_SDA;
#endif