[thirdparty/u-boot.git] / board / sipeed / maix / maix.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2019-20 Sean Anderson <seanga2@gmail.com>
 */

#include <common.h>
#include <clk.h>
#include <dm.h>
#include <fdt_support.h>
#include <asm/io.h>

phys_size_t get_effective_memsize(void)
{
	return CFG_SYS_SDRAM_SIZE;
}

static int sram_init(void)
{
	int ret, i;
	const char * const banks[] = { "sram0", "sram1", "aisram" };
	ofnode memory;
	struct clk clk;

	/* Enable RAM clocks */
	memory = ofnode_by_compatible(ofnode_null(), "canaan,k210-sram");
	if (ofnode_equal(memory, ofnode_null()))
		return -ENOENT;

	for (i = 0; i < ARRAY_SIZE(banks); i++) {
		ret = clk_get_by_name_nodev(memory, banks[i], &clk);
		if (ret)
			continue;

		ret = clk_enable(&clk);
		if (ret)
			return ret;
	}

	return 0;
}

int board_early_init_f(void)
{
	return sram_init();
}

int board_init(void)
{
	return 0;
}
Commit	Line	Data
a7c81fc8 SA	1	// SPDX-License-Identifier: GPL-2.0+
	2	/*
	3	* Copyright (C) 2019-20 Sean Anderson <seanga2@gmail.com>
	4	*/
	5
d678a59d	6	#include <common.h>
a7c81fc8 SA	7	#include <clk.h>
	8	#include <dm.h>
	9	#include <fdt_support.h>
	10	#include <asm/io.h>
	11
	12	phys_size_t get_effective_memsize(void)
	13	{
aa6e94de	14	return CFG_SYS_SDRAM_SIZE;
a7c81fc8 SA	15	}
a7c81fc8 SA	16
23058052	17	static int sram_init(void)
a7c81fc8 SA	18	{
a7c81fc8 SA	19	int ret, i;
2d64e382	20	const char * const banks[] = { "sram0", "sram1", "aisram" };
a7c81fc8 SA	21	ofnode memory;
	22	struct clk clk;
	23
	24	/* Enable RAM clocks */
fd426b31	25	memory = ofnode_by_compatible(ofnode_null(), "canaan,k210-sram");
a7c81fc8 SA	26	if (ofnode_equal(memory, ofnode_null()))
	27	return -ENOENT;
	28
	29	for (i = 0; i < ARRAY_SIZE(banks); i++) {
	30	ret = clk_get_by_name_nodev(memory, banks[i], &clk);
	31	if (ret)
	32	continue;
	33
	34	ret = clk_enable(&clk);
a7c81fc8 SA	35	if (ret)
	36	return ret;
	37	}
	38
	39	return 0;
	40	}
23058052 SA	41
	42	int board_early_init_f(void)
	43	{
	44	return sram_init();
	45	}
	46
	47	int board_init(void)
	48	{
	49	return 0;
	50	}