avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/board/renesas/sh7785lcr/selfcheck.c

@@ -0,0 +1,151 @@
+/*
+ * 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"
+);