Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 38 insertions, 0 deletions

diff --git a/roms/u-boot/arch/arm/mach-tegra/emc.c b/roms/u-boot/arch/arm/mach-tegra/emc.c
new file mode 100644
index 000000000..2eea14b5a
--- /dev/null
+++ b/roms/u-boot/arch/arm/mach-tegra/emc.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ */
+
+#include <common.h>
+#include <asm/global_data.h>
+#include "emc.h"
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/emc.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/ap.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/pmu.h>
+#include <asm/arch-tegra/sys_proto.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* These rates are hard-coded for now, until fdt provides them */
+#define EMC_SDRAM_RATE_T20	(333000 * 2 * 1000)
+#define EMC_SDRAM_RATE_T25	(380000 * 2 * 1000)
+
+int board_emc_init(void)
+{
+	unsigned rate;
+
+	switch (tegra_get_chip_sku()) {
+	default:
+	case TEGRA_SOC_T20:
+		rate  = EMC_SDRAM_RATE_T20;
+		break;
+	case TEGRA_SOC_T25:
+		rate  = EMC_SDRAM_RATE_T25;
+		break;
+	}
+	return tegra_set_emc(gd->fdt_blob, rate);
+}