csu3_am335x/board-support/u-boot-2017.01+gitAUTOINC+340fb36f04-g340fb36f04/board/renesas/sh7785lcr/selfcheck.c

/*
 * Copyright (C) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <console.h>
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/pci.h>

#if defined(CONFIG_CPU_32BIT)
#define NOCACHE_OFFSET		0x00000000
#else
#define NOCACHE_OFFSET		0xa0000000
#endif
#define PLD_LEDCR		(0x04000008 + NOCACHE_OFFSET)
#define PLD_SWSR		(0x0400000a + NOCACHE_OFFSET)
#define PLD_VERSR		(0x0400000c + NOCACHE_OFFSET)

#define SM107_DEVICEID		(0x13e00060 + NOCACHE_OFFSET)

static void test_pld(void)
{
	printf("PLD version = %04x\n", readb(PLD_VERSR));
}

static void test_sm107(void)
{
	printf("SM107 device ID = %04x\n", readl(SM107_DEVICEID));
}

static void test_led(void)
{
	printf("turn on LEDs 3, 5, 7, 9\n");
	writeb(0x55, PLD_LEDCR);
	mdelay(2000);
	printf("turn on LEDs 4, 6, 8, 10\n");
	writeb(0xaa, PLD_LEDCR);
	mdelay(2000);
	writeb(0x00, PLD_LEDCR);
}

static void test_dipsw(void)
{
	printf("Please DIPSW set = B'0101\n");
	while (readb(PLD_SWSR) != 0x05) {
		if (ctrlc())
			return;
	}
	printf("Please DIPSW set = B'1010\n");
	while (readb(PLD_SWSR) != 0x0A) {
		if (ctrlc())
			return;
	}
	printf("DIPSW OK\n");
}

static void test_net(void)
{
	unsigned long data;

	writel(0x80000000, 0xfe0401c0);
	data = readl(0xfe040220);
	if (data == 0x816910ec)
		printf("Ethernet OK\n");
	else
		printf("Ethernet NG, data = %08x\n", (unsigned int)data);
}

static void test_sata(void)
{
	unsigned long data;

	writel(0x80000800, 0xfe0401c0);
	data = readl(0xfe040220);
	if (data == 0x35121095)
		printf("SATA OK\n");
	else
		printf("SATA NG, data = %08x\n", (unsigned int)data);
}

static void test_pci(void)
{
	writel(0x80001800, 0xfe0401c0);
	printf("PCI CN1 ID = %08x\n", readl(0xfe040220));

	writel(0x80001000, 0xfe0401c0);
	printf("PCI CN2 ID = %08x\n", readl(0xfe040220));
}

int do_hw_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	char *cmd;

	if (argc != 2)
		return cmd_usage(cmdtp);

	cmd = argv[1];
	switch (cmd[0]) {
	case 'a':	/* all */
		test_pld();
		test_led();
		test_dipsw();
		test_sm107();
		test_net();
		test_sata();
		test_pci();
		break;
	case 'p':	/* pld or pci */
		if (cmd[1] == 'l')
			test_pld();
		else
			test_pci();
		break;
	case 'l':	/* led */
		test_led();
		break;
	case 'd':	/* dipsw */
		test_dipsw();
		break;
	case 's':	/* sm107 or sata */
		if (cmd[1] == 'm')
			test_sm107();
		else
			test_sata();
		break;
	case 'n':	/* net */
		test_net();
		break;
	default:
		return cmd_usage(cmdtp);
	}

	return 0;
}

U_BOOT_CMD(
	hwtest,	2,	1,	do_hw_test,
	"hardware test for R0P7785LC0011RL board",
	"\n"
	"hwtest all   - test all hardware\n"
	"hwtest pld   - output PLD version\n"
	"hwtest led   - turn on LEDs\n"
	"hwtest dipsw - test DIP switch\n"
	"hwtest sm107 - output SM107 version\n"
	"hwtest net   - check RTL8110 ID\n"
	"hwtest sata  - check SiI3512 ID\n"
	"hwtest pci   - output PCI slot device ID"
);