mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-28 05:53:54 +00:00
69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
|
/*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
|
*/
|
||
|
|
#include <common.h>
|
||
|
|
#include <twl4030.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
#include <asm/omap_mmc.h>
|
||
|
|
#include <asm/arch/mux.h>
|
||
|
|
#include <asm/arch/sys_proto.h>
|
||
|
|
#include <jffs2/load_kernel.h>
|
||
|
|
#include <linux/mtd/nand.h>
|
||
|
|
#include "igep00x0.h"
|
||
|
|
|
||
|
|
DECLARE_GLOBAL_DATA_PTR;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Routine: set_muxconf_regs
|
||
|
|
* Description: Setting up the configuration Mux registers specific to the
|
||
|
|
* hardware. Many pins need to be moved from protect to primary
|
||
|
|
* mode.
|
||
|
|
*/
|
||
|
|
void set_muxconf_regs(void)
|
||
|
|
{
|
||
|
|
MUX_DEFAULT();
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Routine: board_init
|
||
|
|
* Description: Early hardware init.
|
||
|
|
*/
|
||
|
|
int board_init(void)
|
||
|
|
{
|
||
|
|
int loops = 100;
|
||
|
|
|
||
|
|
/* find out flash memory type, assume NAND first */
|
||
|
|
gpmc_cs0_flash = MTD_DEV_TYPE_NAND;
|
||
|
|
gpmc_init();
|
||
|
|
|
||
|
|
/* Issue a RESET and then READID */
|
||
|
|
writeb(NAND_CMD_RESET, &gpmc_cfg->cs[0].nand_cmd);
|
||
|
|
writeb(NAND_CMD_STATUS, &gpmc_cfg->cs[0].nand_cmd);
|
||
|
|
while ((readl(&gpmc_cfg->cs[0].nand_dat) & NAND_STATUS_READY)
|
||
|
|
!= NAND_STATUS_READY) {
|
||
|
|
udelay(1);
|
||
|
|
if (--loops == 0) {
|
||
|
|
gpmc_cs0_flash = MTD_DEV_TYPE_ONENAND;
|
||
|
|
gpmc_init(); /* reinitialize for OneNAND */
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* boot param addr */
|
||
|
|
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(CONFIG_MMC)
|
||
|
|
int board_mmc_init(bd_t *bis)
|
||
|
|
{
|
||
|
|
return omap_mmc_init(0, 0, 0, -1, -1);
|
||
|
|
}
|
||
|
|
|
||
|
|
void board_mmc_power_init(void)
|
||
|
|
{
|
||
|
|
twl4030_power_mmc_init(0);
|
||
|
|
}
|
||
|
|
#endif
|