From d8162dd6f18eeb51d1a3176e5edf40d150b11e32 Mon Sep 17 00:00:00 2001
From: Andrey Smirnov <andrew.smirnov@gmail.com>
Date: Wed, 9 Nov 2016 08:13:53 -0800
Subject: i.MX: Add support for VF610 Tower board

Add support for VF610 Tower board.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/boards/freescale-vf610-twr/lowlevel.c | 45 ++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 arch/arm/boards/freescale-vf610-twr/lowlevel.c

(limited to 'arch/arm/boards/freescale-vf610-twr/lowlevel.c')

diff --git a/arch/arm/boards/freescale-vf610-twr/lowlevel.c b/arch/arm/boards/freescale-vf610-twr/lowlevel.c
new file mode 100644
index 0000000000..65042736c9
--- /dev/null
+++ b/arch/arm/boards/freescale-vf610-twr/lowlevel.c
@@ -0,0 +1,45 @@
+#include <common.h>
+#include <linux/sizes.h>
+#include <mach/generic.h>
+#include <asm/barebox-arm-head.h>
+#include <asm/barebox-arm.h>
+#include <mach/vf610-regs.h>
+#include <mach/clock-vf610.h>
+#include <mach/iomux-vf610.h>
+#include <debug_ll.h>
+
+static inline void setup_uart(void)
+{
+	void __iomem *iomuxbase = IOMEM(VF610_IOMUXC_BASE_ADDR);
+
+	vf610_ungate_all_peripherals();
+
+	/*
+	 * VF610_PAD_PTB4__UART1_TX
+	 */
+	writel(VF610_UART_PAD_CTRL | (2 << 20), iomuxbase + 0x0068);
+	writel(0, iomuxbase + 0x0380);
+
+	vf610_uart_setup_ll();
+}
+
+extern char __dtb_vf610_twr_start[];
+
+ENTRY_FUNCTION(start_vf610_twr, r0, r1, r2)
+{
+	int i;
+	void *fdt;
+	void __iomem *mscm = IOMEM(VF610_MSCM_BASE_ADDR);
+
+	vf610_cpu_lowlevel_init();
+
+	for (i = 0; i < VF610_MSCM_IRSPRC_NUM; i++)
+		writew(VF610_MSCM_IRSPRC_CP0_EN,
+		       mscm + VF610_MSCM_IRSPRC(i));
+
+	if (IS_ENABLED(CONFIG_DEBUG_LL))
+		setup_uart();
+
+	fdt = __dtb_vf610_twr_start - get_runtime_offset();
+	barebox_arm_entry(0x80000000, SZ_128M, fdt);
+}
-- 
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