Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 191 insertions, 0 deletions

diff --git a/roms/u-boot/arch/arm/mach-uniphier/micro-support-card.c b/roms/u-boot/arch/arm/mach-uniphier/micro-support-card.c
new file mode 100644
index 000000000..95780f79c
--- /dev/null
+++ b/roms/u-boot/arch/arm/mach-uniphier/micro-support-card.c
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2012-2015 Panasonic Corporation
+ * Copyright (C) 2015-2020 Socionext Inc.
+ *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+ */
+
+#include <dm.h>
+#include <fdt_support.h>
+#include <linux/ctype.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <asm/global_data.h>
+
+#include "micro-support-card.h"
+
+#define SMC911X_OFFSET			0x00000
+#define LED_OFFSET			0x90000
+#define NS16550A_OFFSET			0xb0000
+#define MICRO_SUPPORT_CARD_RESET	0xd0034
+#define MICRO_SUPPORT_CARD_REVISION	0xd00e0
+
+static bool support_card_found;
+static void __iomem *support_card_base;
+
+static void support_card_detect(void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	const void *fdt = gd->fdt_blob;
+	int offset;
+	u64 addr, addr2;
+
+	offset = fdt_node_offset_by_compatible(fdt, 0, "smsc,lan9118");
+	if (offset < 0)
+		return;
+
+	addr = fdt_get_base_address(fdt, offset);
+	if (addr == OF_BAD_ADDR)
+		return;
+	addr -= SMC911X_OFFSET;
+
+	offset = fdt_node_offset_by_compatible(fdt, 0, "ns16550a");
+	if (offset < 0)
+		return;
+
+	addr2 = fdt_get_base_address(fdt, offset);
+	if (addr2 == OF_BAD_ADDR)
+		return;
+	addr2 -= NS16550A_OFFSET;
+
+	/* sanity check */
+	if (addr != addr2)
+		return;
+
+	support_card_base = ioremap(addr, 0x100000);
+
+	support_card_found = true;
+}
+
+/*
+ * 0: reset deassert, 1: reset
+ *
+ * bit[0]: LAN, I2C, LED
+ * bit[1]: UART
+ */
+static void support_card_reset_deassert(void)
+{
+	writel(0x00010000, support_card_base + MICRO_SUPPORT_CARD_RESET);
+}
+
+static void support_card_reset(void)
+{
+	writel(0x00020003, support_card_base + MICRO_SUPPORT_CARD_RESET);
+}
+
+static int support_card_show_revision(void)
+{
+	u32 revision;
+
+	revision = readl(support_card_base + MICRO_SUPPORT_CARD_REVISION);
+	revision &= 0xff;
+
+	/* revision 3.6.x card changed the revision format */
+	printf("SC:    Micro Support Card (CPLD version %s%d.%d)\n",
+	       revision >> 4 == 6 ? "3." : "",
+	       revision >> 4, revision & 0xf);
+
+	return 0;
+}
+
+void support_card_init(void)
+{
+	struct udevice *dev;
+	int ret;
+
+	/* The system bus must be initialized for access to the support card. */
+	ret = uclass_get_device_by_driver(UCLASS_SIMPLE_BUS,
+					  DM_DRIVER_GET(uniphier_system_bus_driver),
+					  &dev);
+	if (ret)
+		return;
+
+	/* Check DT to see if this board has the support card. */
+	support_card_detect();
+
+	if (!support_card_found)
+		return;
+
+	support_card_reset();
+	/*
+	 * After power on, we need to keep the LAN controller in reset state
+	 * for a while. (200 usec)
+	 */
+	udelay(200);
+	support_card_reset_deassert();
+
+	support_card_show_revision();
+}
+
+static const u8 ledval_num[] = {
+	0x7e, /* 0 */
+	0x0c, /* 1 */
+	0xb6, /* 2 */
+	0x9e, /* 3 */
+	0xcc, /* 4 */
+	0xda, /* 5 */
+	0xfa, /* 6 */
+	0x4e, /* 7 */
+	0xfe, /* 8 */
+	0xde, /* 9 */
+};
+
+static const u8 ledval_alpha[] = {
+	0xee, /* A */
+	0xf8, /* B */
+	0x72, /* C */
+	0xbc, /* D */
+	0xf2, /* E */
+	0xe2, /* F */
+	0x7a, /* G */
+	0xe8, /* H */
+	0x08, /* I */
+	0x3c, /* J */
+	0xea, /* K */
+	0x70, /* L */
+	0x6e, /* M */
+	0xa8, /* N */
+	0xb8, /* O */
+	0xe6, /* P */
+	0xce, /* Q */
+	0xa0, /* R */
+	0xc8, /* S */
+	0x8c, /* T */
+	0x7c, /* U */
+	0x54, /* V */
+	0xfc, /* W */
+	0xec, /* X */
+	0xdc, /* Y */
+	0xa4, /* Z */
+};
+
+static u8 char2ledval(char c)
+{
+	if (isdigit(c))
+		return ledval_num[c - '0'];
+	else if (isalpha(c))
+		return ledval_alpha[toupper(c) - 'A'];
+
+	return 0;
+}
+
+void led_puts(const char *s)
+{
+	int i;
+	u32 val = 0;
+
+	if (!support_card_found)
+		return;
+
+	if (!s)
+		return;
+
+	for (i = 0; i < 4; i++) {
+		val <<= 8;
+		val |= char2ledval(*s);
+		if (*s != '\0')
+			s++;
+	}
+
+	writel(~val, support_card_base + LED_OFFSET);
+}