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Diffstat (limited to 'roms/u-boot/arch/arm/mach-uniphier/debug-uart/debug-uart-ld6b.c')
-rw-r--r--roms/u-boot/arch/arm/mach-uniphier/debug-uart/debug-uart-ld6b.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/mach-uniphier/debug-uart/debug-uart-ld6b.c b/roms/u-boot/arch/arm/mach-uniphier/debug-uart/debug-uart-ld6b.c
new file mode 100644
index 000000000..f64ff39c9
--- /dev/null
+++ b/roms/u-boot/arch/arm/mach-uniphier/debug-uart/debug-uart-ld6b.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
+ */
+
+#include <config.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+
+#include "../sc-regs.h"
+#include "../sg-regs.h"
+#include "debug-uart.h"
+
+#define UNIPHIER_LD6B_UART_CLK 88888888
+
+unsigned int uniphier_ld6b_debug_uart_init(void)
+{
+ u32 tmp;
+
+ sg_set_iectrl(0);
+ sg_set_pinsel(135, 3, 8, 4); /* PORT10 -> TXD0 */
+ sg_set_pinsel(115, 0, 8, 4); /* TXD1 -> TXD1 */
+ sg_set_pinsel(113, 2, 8, 4); /* SBO0 -> TXD2 */
+
+ tmp = readl(sc_base + SC_CLKCTRL);
+ tmp |= SC_CLKCTRL_CEN_PERI;
+ writel(tmp, sc_base + SC_CLKCTRL);
+
+ return DIV_ROUND_CLOSEST(UNIPHIER_LD6B_UART_CLK, 16 * CONFIG_BAUDRATE);
+}