1 files changed, 66 insertions, 0 deletions
diff --git a/arch/arm/boards/kontron-samx6i/lowlevel.c b/arch/arm/boards/kontron-samx6i/lowlevel.c
new file mode 100644
index 0000000000..5c35007040
--- /dev/null
+++ b/arch/arm/boards/kontron-samx6i/lowlevel.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2018 (C) Pengutronix, Michael Grzeschik <mgr@pengutronix.de>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <debug_ll.h>
+#include <common.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.h>
+#include <mach/esdctl.h>
+
+resource_size_t samx6i_get_size(void);
+
+static inline void setup_uart(void)
+{
+	void __iomem *iomuxbase = (void *)MX6_IOMUXC_BASE_ADDR;
+
+	writel(0x4, iomuxbase + 0x016c);
+
+	imx6_ungate_all_peripherals();
+	imx6_uart_setup_ll();
+
+	putc_ll('>');
+}
+
+static void __noreturn start_imx6_samx6i_common(void *fdt_blob_fixed_offset)
+{
+	void *fdt;
+	resource_size_t size = 0;
+
+	size = samx6i_get_size();
+
+	imx6_cpu_lowlevel_init();
+	arm_setup_stack(0x00920000 - 8);
+
+	if (IS_ENABLED(CONFIG_DEBUG_LL))
+		setup_uart();
+
+	fdt = fdt_blob_fixed_offset + get_runtime_offset();
+
+	barebox_arm_entry(0x10000000, size, fdt);
+}
+
+extern char __dtb_imx6dl_samx6i_start[];
+extern char __dtb_imx6q_samx6i_start[];
+
+ENTRY_FUNCTION(start_imx6q_samx6i, r0, r1, r2)
+{
+	start_imx6_samx6i_common(__dtb_imx6q_samx6i_start);
+}
+
+ENTRY_FUNCTION(start_imx6dl_samx6i, r0, r1, r2)
+{
+	start_imx6_samx6i_common(__dtb_imx6dl_samx6i_start);
+}