1 files changed, 88 insertions, 0 deletions
diff --git a/arch/arm/boards/tqma6x/lowlevel.c b/arch/arm/boards/tqma6x/lowlevel.c
new file mode 100644
index 0000000000..8c8684123a
--- /dev/null
+++ b/arch/arm/boards/tqma6x/lowlevel.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2013 Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+#include <debug_ll.h>
+#include <common.h>
+#include <sizes.h>
+#include <io.h>
+#include <asm/barebox-arm-head.h>
+#include <asm/barebox-arm.h>
+#include <asm/sections.h>
+#include <asm/cache.h>
+#include <asm/mmu.h>
+#include <mach/imx6-mmdc.h>
+#include <mach/imx6.h>
+
+static inline void setup_uart(void)
+{
+	/* Enable UART for lowlevel debugging purposes */
+	writel(0x00000000, 0x021e8080);
+	writel(0x00004027, 0x021e8084);
+	writel(0x00000704, 0x021e8088);
+	writel(0x00000a81, 0x021e8090);
+	writel(0x0000002b, 0x021e809c);
+	writel(0x00013880, 0x021e80b0);
+	writel(0x0000047f, 0x021e80a4);
+	writel(0x0000c34f, 0x021e80a8);
+	writel(0x00000001, 0x021e8080);
+}
+
+extern char __dtb_imx6q_mba6x_start[];
+extern char __dtb_imx6dl_mba6x_start[];
+
+ENTRY_FUNCTION(start_imx6q_mba6x)(void)
+{
+	uint32_t fdt;
+
+	__barebox_arm_head();
+
+	arm_cpu_lowlevel_init();
+
+	arm_setup_stack(0x00920000 - 8);
+
+	if (IS_ENABLED(CONFIG_DEBUG_LL)) {
+		writel(0x2, 0x020e0338);
+		setup_uart();
+		PUTC_LL('a');
+	}
+
+	arm_early_mmu_cache_invalidate();
+
+	fdt = (uint32_t)__dtb_imx6q_mba6x_start - get_runtime_offset();
+
+	barebox_arm_entry(0x10000000, SZ_1G, fdt);
+}
+
+ENTRY_FUNCTION(start_imx6dl_mba6x)(void)
+{
+	uint32_t fdt;
+
+	__barebox_arm_head();
+
+	arm_cpu_lowlevel_init();
+
+	arm_setup_stack(0x00920000 - 8);
+
+	if (IS_ENABLED(CONFIG_DEBUG_LL)) {
+		writel(0x2, 0x020e035c);
+		setup_uart();
+		PUTC_LL('a');
+	}
+
+	arm_early_mmu_cache_invalidate();
+
+	fdt = (uint32_t)__dtb_imx6dl_mba6x_start - get_runtime_offset();
+
+	barebox_arm_entry(0x10000000, SZ_512M, fdt);
+}