[people/ms/u-boot.git] / arch / arm / mach-rockchip / rk3288-board-tpl.c

/*
 * Copyright (C) 2017 Amarula Solutions
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */

#include <common.h>
#include <debug_uart.h>
#include <dm.h>
#include <ram.h>
#include <spl.h>
#include <version.h>
#include <asm/io.h>
#include <asm/arch/bootrom.h>
#include <asm/arch/clock.h>
#include <asm/arch/grf_rk3288.h>
#include <asm/arch/periph.h>
#include <asm/arch/pmu_rk3288.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/timer.h>

DECLARE_GLOBAL_DATA_PTR;

#define GRF_BASE		0xff770000
void board_init_f(ulong dummy)
{
	struct udevice *dev;
	int ret;

	/* Example code showing how to enable the debug UART on RK3288 */
	/* Enable early UART on the RK3288 */
	struct rk3288_grf * const grf = (void *)GRF_BASE;

	rk_clrsetreg(&grf->gpio7ch_iomux, GPIO7C7_MASK << GPIO7C7_SHIFT |
		     GPIO7C6_MASK << GPIO7C6_SHIFT,
		     GPIO7C7_UART2DBG_SOUT << GPIO7C7_SHIFT |
		     GPIO7C6_UART2DBG_SIN << GPIO7C6_SHIFT);
	/*
	 * Debug UART can be used from here if required:
	 *
	 * debug_uart_init();
	 * printch('a');
	 * printhex8(0x1234);
	 * printascii("string");
	 */
	debug_uart_init();

	ret = spl_early_init();
	if (ret) {
		debug("spl_early_init() failed: %d\n", ret);
		hang();
	}

	rockchip_timer_init();
	configure_l2ctlr();

	ret = rockchip_get_clk(&dev);
	if (ret) {
		debug("CLK init failed: %d\n", ret);
		return;
	}

	ret = uclass_get_device(UCLASS_RAM, 0, &dev);
	if (ret) {
		debug("DRAM init failed: %d\n", ret);
		return;
	}
}

void board_return_to_bootrom(void)
{
	back_to_bootrom(BROM_BOOT_NEXTSTAGE);
}

u32 spl_boot_device(void)
{
	return BOOT_DEVICE_BOOTROM;
}

void spl_board_init(void)
{
	puts("\nU-Boot TPL " PLAIN_VERSION " (" U_BOOT_DATE " - " \
				U_BOOT_TIME ")\n");
}
Commit	Line	Data
532cb7f5 JT	1	/*
	2	* Copyright (C) 2017 Amarula Solutions
	3	*
	4	* SPDX-License-Identifier: GPL-2.0+
	5	*/
	6
	7	#include <common.h>
	8	#include <debug_uart.h>
	9	#include <dm.h>
	10	#include <ram.h>
	11	#include <spl.h>
	12	#include <version.h>
	13	#include <asm/io.h>
	14	#include <asm/arch/bootrom.h>
	15	#include <asm/arch/clock.h>
	16	#include <asm/arch/grf_rk3288.h>
	17	#include <asm/arch/periph.h>
	18	#include <asm/arch/pmu_rk3288.h>
	19	#include <asm/arch/sys_proto.h>
	20	#include <asm/arch/timer.h>
	21
	22	DECLARE_GLOBAL_DATA_PTR;
	23
	24	#define GRF_BASE 0xff770000
	25	void board_init_f(ulong dummy)
	26	{
	27	struct udevice *dev;
	28	int ret;
	29
	30	/* Example code showing how to enable the debug UART on RK3288 */
	31	/* Enable early UART on the RK3288 */
	32	struct rk3288_grf * const grf = (void *)GRF_BASE;
	33
	34	rk_clrsetreg(&grf->gpio7ch_iomux, GPIO7C7_MASK << GPIO7C7_SHIFT \|
	35	GPIO7C6_MASK << GPIO7C6_SHIFT,
	36	GPIO7C7_UART2DBG_SOUT << GPIO7C7_SHIFT \|
	37	GPIO7C6_UART2DBG_SIN << GPIO7C6_SHIFT);
	38	/*
	39	* Debug UART can be used from here if required:
	40	*
	41	* debug_uart_init();
	42	* printch('a');
	43	* printhex8(0x1234);
	44	* printascii("string");
	45	*/
	46	debug_uart_init();
	47
	48	ret = spl_early_init();
	49	if (ret) {
	50	debug("spl_early_init() failed: %d\n", ret);
	51	hang();
	52	}
	53
	54	rockchip_timer_init();
	55	configure_l2ctlr();
	56
	57	ret = rockchip_get_clk(&dev);
	58	if (ret) {
	59	debug("CLK init failed: %d\n", ret);
	60	return;
	61	}
	62
	63	ret = uclass_get_device(UCLASS_RAM, 0, &dev);
	64	if (ret) {
65	debug("DRAM init failed: %d\n", ret);
66	return;
67	}
68	}
69
70	void board_return_to_bootrom(void)
71	{
b82bd1f8	72	back_to_bootrom(BROM_BOOT_NEXTSTAGE);
532cb7f5 JT	73	}
	74
	75	u32 spl_boot_device(void)
	76	{
	77	return BOOT_DEVICE_BOOTROM;
	78	}
	79
	80	void spl_board_init(void)
	81	{
	82	puts("\nU-Boot TPL " PLAIN_VERSION " (" U_BOOT_DATE " - " \
	83	U_BOOT_TIME ")\n");
	84	}