diff options
Diffstat (limited to 'board/bf533-stamp/bf533-stamp.c')
| -rw-r--r-- | board/bf533-stamp/bf533-stamp.c | 50 |
1 files changed, 16 insertions, 34 deletions
diff --git a/board/bf533-stamp/bf533-stamp.c b/board/bf533-stamp/bf533-stamp.c index 0c6324b..44ebc93 100644 --- a/board/bf533-stamp/bf533-stamp.c +++ b/board/bf533-stamp/bf533-stamp.c @@ -49,43 +49,28 @@ int checkboard(void) phys_size_t initdram(int board_type) { -#ifdef DEBUG - printf("SDRAM attributes:\n"); - printf - (" tRCD:%d Cycles; tRP:%d Cycles; tRAS:%d Cycles; tWR:%d Cycles; " - "CAS Latency:%d cycles\n", (SDRAM_tRCD >> 15), (SDRAM_tRP >> 11), - (SDRAM_tRAS >> 6), (SDRAM_tWR >> 19), (SDRAM_CL >> 2)); - printf("SDRAM Begin: 0x%x\n", CONFIG_SYS_SDRAM_BASE); - printf("Bank size = %d MB\n", 128); -#endif gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; gd->bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE; - return (gd->bd->bi_memsize); + return gd->bd->bi_memsize; } +/* PF0 and PF1 are used to switch between the ethernet and flash: + * PF0 PF1 + * flash: 0 0 + * ether: 1 0 + */ void swap_to(int device_id) { - - if (device_id == ETHERNET) { - *pFIO_DIR = PF0; - SSYNC(); - *pFIO_FLAG_S = PF0; - SSYNC(); - } else if (device_id == FLASH) { - *pFIO_DIR = (PF4 | PF3 | PF2 | PF1 | PF0); - *pFIO_FLAG_S = (PF4 | PF3 | PF2); - *pFIO_MASKA_D = (PF8 | PF6 | PF5); - *pFIO_MASKB_D = (PF7); - *pFIO_POLAR = (PF8 | PF6 | PF5); - *pFIO_EDGE = (PF8 | PF7 | PF6 | PF5); - *pFIO_INEN = (PF8 | PF7 | PF6 | PF5); - *pFIO_FLAG_D = (PF4 | PF3 | PF2); - SSYNC(); - } else { - printf("Unknown bank to switch\n"); - } - - return; + bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF1 | PF0); + SSYNC(); + bfin_write_FIO_FLAG_C(PF1); + if (device_id == ETHERNET) + bfin_write_FIO_FLAG_S(PF0); + else if (device_id == FLASH) + bfin_write_FIO_FLAG_C(PF0); + else + printf("Unknown device to switch\n"); + SSYNC(); } #if defined(CONFIG_MISC_INIT_R) @@ -113,9 +98,6 @@ int misc_init_r(void) if (cf_stat) { printf("Booting from COMPACT flash\n"); - /* Set cycle time for CF */ - *(volatile unsigned long *)ambctl1 = CF_AMBCTL1VAL; - for (i = 0; i < 0x1000; i++) asm("nop;"); for (i = 0; i < 0x1000; i++) |