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Fixed FireTOS loader using minimal initialization.

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This commit is contained in:
Vincent Rivière
2012-10-21 23:14:09 +00:00
parent dd382517ba
commit df5e188f7c
1 changed files with 21 additions and 0 deletions
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21
BaS_GNU/sources/sysinit.c
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@@ -683,6 +683,27 @@ void initialize_hardware(void) {
uint32_t *dst; /* destination address to copy to */
uint32_t *jmp; /* address of BaS() routine to jmp at after copy */
/* Test for FireTOS switch: DIP switch #5 up */
if (!(DIP_SWITCH & (1 << 6))) {
/* Minimal hardware initialization */
init_gpio();
init_fbcs();
init_ddram();
init_fpga();
/* FireTOS seems to have trouble to initialize the ST-RAM by itself, so... */
/* Validate ST RAM */
* (volatile uint32_t *) 0x42e = 0x00e00000; /* phystop TOS system variable */
* (volatile uint32_t *) 0x420 = 0x752019f3; /* memvalid TOS system variable */
* (volatile uint32_t *) 0x43a = 0x237698aa; /* memval2 TOS system variable */
* (volatile uint32_t *) 0x51a = 0x5555aaaa; /* memval3 TOS system variable */
/* Jump into FireTOS */
typedef void void_func(void);
void_func* FireTOS = (void_func*)0xe0400000;
FireTOS();
}
init_gpio();
init_serial();
init_slt();