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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2023 Chris Morgan <macromorgan@hotmail.com>
*/
#include <asm/io.h>
#define GPIO4_BASE 0xfe770000
#define GPIO_SWPORT_DR_L 0x0000
#define GPIO_SWPORT_DDR_L 0x0008
#define GPIO_B4 BIT(12)
#define GPIO_B5 BIT(13)
#define GPIO_B6 BIT(14)
#define GPIO_WRITEMASK(bits) ((bits) << 16)
/*
* Start LED very early so user knows device is on. Set color
* to red.
*/
void spl_board_init(void)
{
/* Set GPIO4_B4, GPIO4_B5, and GPIO4_B6 to output. */
writel(GPIO_WRITEMASK(GPIO_B6 | GPIO_B5 | GPIO_B4) | \
(GPIO_B6 | GPIO_B5 | GPIO_B4),
(GPIO4_BASE + GPIO_SWPORT_DDR_L));
/* Set GPIO4_B5 and GPIO4_B6 to 0 and GPIO4_B4 to 1. */
writel(GPIO_WRITEMASK(GPIO_B6 | GPIO_B5 | GPIO_B4) | GPIO_B4,
(GPIO4_BASE + GPIO_SWPORT_DR_L));
}
int rk_board_late_init(void)
{
/* Turn off red LED and turn on orange LED. */
writel(GPIO_WRITEMASK(GPIO_B6 | GPIO_B5 | GPIO_B4) | GPIO_B6,
(GPIO4_BASE + GPIO_SWPORT_DR_L));
return 0;
}
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