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x86: Make cpu init functions weak

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This commit is contained in:
Graeme Russ
2011-02-12 15:11:35 +11:00
parent 4e33467d44
commit 0ea76e92e9
4 changed files with 17 additions and 32 deletions
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22
board/eNET/eNET.c
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@@ -48,33 +48,11 @@ unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN;
static void enet_timer_isr(void);
static void enet_toggle_run_led(void);
void init_sc520_enet (void)
{
/* Set CPU Speed to 100MHz */
writeb(0x01, &sc520_mmcr->cpuctl);
/* wait at least one millisecond */
asm("movl $0x2000,%%ecx\n"
"0: pushl %%ecx\n"
"popl %%ecx\n"
"loop 0b\n": : : "ecx");
/* turn on the SDRAM write buffer */
writeb(0x11, &sc520_mmcr->dbctl);
/* turn on the cache and disable write through */
asm("movl %%cr0, %%eax\n"
"andl $0x9fffffff, %%eax\n"
"movl %%eax, %%cr0\n" : : : "eax");
}
/*
* Miscellaneous platform dependent initializations
*/
int board_early_init_f(void)
{
init_sc520_enet();
writeb(0x01, &sc520_mmcr->gpcsrt); /* GP Chip Select Recovery Time */
writeb(0x07, &sc520_mmcr->gpcspw); /* GP Chip Select Pulse Width */
writeb(0x00, &sc520_mmcr->gpcsoff); /* GP Chip Select Offset */