1 files changed, 48 insertions, 0 deletions
diff --git a/arch/arm/boards/sama5d27-giantboard/lowlevel.c b/arch/arm/boards/sama5d27-giantboard/lowlevel.c
new file mode 100644
index 0000000000..49540bede0
--- /dev/null
+++ b/arch/arm/boards/sama5d27-giantboard/lowlevel.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2019 Ahmad Fatoum, Pengutronix
+ */
+
+#include <common.h>
+#include <init.h>
+#include <mach/at91/barebox-arm.h>
+#include <mach/at91/sama5d2_ll.h>
+#include <mach/at91/xload.h>
+#include <mach/at91/sama5d2-sip-ddramc.h>
+#include <mach/at91/iomux.h>
+#include <debug_ll.h>
+
+/* PCK = 492MHz, MCK = 164MHz */
+#define MASTER_CLOCK	164000000
+
+SAMA5D2_ENTRY_FUNCTION(start_sama5d27_giantboard_xload_mmc, r4)
+{
+	void __iomem *dbgu_base;
+
+	sama5d2_lowlevel_init();
+
+	dbgu_base = sama5d2_resetup_uart_console(MASTER_CLOCK);
+	putc_ll('>');
+
+	relocate_to_current_adr();
+	setup_c();
+
+	pbl_set_putc(at91_dbgu_putc, dbgu_base);
+
+	sama5d2_udelay_init(MASTER_CLOCK);
+	sama5d2_d1g_ddrconf();
+	sama5d2_sdhci_start_image(r4);
+}
+
+extern char __dtb_z_at91_sama5d27_giantboard_start[];
+
+SAMA5D2_ENTRY_FUNCTION(start_sama5d27_giantboard, r4)
+{
+	void *fdt;
+
+	putc_ll('>');
+
+	fdt = __dtb_z_at91_sama5d27_giantboard_start + get_runtime_offset();
+
+	sama5d2_barebox_entry(r4, fdt);
+}