u-boot/arch/arm/mach-uniphier/early-pinctrl/early-pinctrl-ld20.c
Masahiro Yamada 5eb4150e84 ARM: uniphier: allow to use System Bus for ROM boot mode of PH1-LD20
The System Bus is not available by default on the ROM boot mode of
PH1-LD20.  To use devices connected to the System Bus, such as the
Micro Support Card, it is necessary to set up pin-muxing and some
System Bus Controller register.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-05-01 01:09:18 +09:00

32 lines
1.1 KiB
C

/*
* Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include "../init.h"
#include "../sg-regs.h"
int uniphier_ld20_early_pin_init(const struct uniphier_board_data *bd)
{
/* Comment format: PAD Name -> Function Name */
sg_set_pinsel(0, 0, 8, 4); /* XECS1 -> XECS1 */
sg_set_pinsel(1, 0, 8, 4); /* ERXW -> ERXW */
sg_set_pinsel(2, 0, 8, 4); /* XERWE1 -> XERWE1 */
sg_set_pinsel(6, 2, 8, 4); /* XNFRE -> XERWE0 */
sg_set_pinsel(7, 2, 8, 4); /* XNFWE -> ES0 */
sg_set_pinsel(8, 2, 8, 4); /* NFALE -> ES1 */
sg_set_pinsel(9, 2, 8, 4); /* NFCLE -> ES2 */
sg_set_pinsel(10, 2, 8, 4); /* NFD0 -> ED0 */
sg_set_pinsel(11, 2, 8, 4); /* NFD1 -> ED1 */
sg_set_pinsel(12, 2, 8, 4); /* NFD2 -> ED2 */
sg_set_pinsel(13, 2, 8, 4); /* NFD3 -> ED3 */
sg_set_pinsel(14, 2, 8, 4); /* NFD4 -> ED4 */
sg_set_pinsel(15, 2, 8, 4); /* NFD5 -> ED5 */
sg_set_pinsel(16, 2, 8, 4); /* NFD6 -> ED6 */
sg_set_pinsel(17, 2, 8, 4); /* NFD7 -> ED7 */
sg_set_iectrl_range(0, 2);
sg_set_iectrl_range(6, 17);
return 0;
}