4 files changed, 56 insertions, 1 deletions
diff --git a/arch/arm/cpu/tegra-common/Makefile b/arch/arm/cpu/tegra-common/Makefile
index 892556e..a18c318 100644
--- a/arch/arm/cpu/tegra-common/Makefile
+++ b/arch/arm/cpu/tegra-common/Makefile
@@ -14,3 +14,4 @@ obj-y += clock.o
 obj-y += lowlevel_init.o
 obj-y += pinmux-common.o
 obj-$(CONFIG_DISPLAY_CPUINFO) += sys_info.o
+obj-$(CONFIG_TEGRA124) += vpr.o
diff --git a/arch/arm/cpu/tegra-common/ap.c b/arch/arm/cpu/tegra-common/ap.c
index 91d70da..a17dfd1 100644
--- a/arch/arm/cpu/tegra-common/ap.c
+++ b/arch/arm/cpu/tegra-common/ap.c
@@ -163,4 +163,7 @@ void s_init(void)
 
 	/* init the cache */
 	config_cache();
+
+	/* init vpr */
+	config_vpr();
 }
diff --git a/arch/arm/cpu/tegra-common/board.c b/arch/arm/cpu/tegra-common/board.c
index 6a6faf4..433da09 100644
--- a/arch/arm/cpu/tegra-common/board.c
+++ b/arch/arm/cpu/tegra-common/board.c
@@ -27,11 +27,12 @@ enum {
 	UART_COUNT = 5,
 };
 
+#if defined(CONFIG_TEGRA20) || defined(CONFIG_TEGRA30) || \
+	defined(CONFIG_TEGRA114)
 /*
  * Boot ROM initializes the odmdata in APBDEV_PMC_SCRATCH20_0,
  * so we are using this value to identify memory size.
  */
-
 unsigned int query_sdram_size(void)
 {
 	struct pmc_ctlr *const pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
@@ -72,6 +73,21 @@ unsigned int query_sdram_size(void)
 	}
 #endif
 }
+#else
+#include <asm/arch/mc.h>
+
+/* Read the RAM size directly from the memory controller */
+unsigned int query_sdram_size(void)
+{
+	struct mc_ctlr *const mc = (struct mc_ctlr *)NV_PA_MC_BASE;
+	u32 size_mb;
+
+	size_mb = readl(&mc->mc_emem_cfg);
+	debug("mc->mc_emem_cfg (MEM_SIZE_MB) = 0x%08x\n", size_mb);
+
+	return size_mb * 1024 * 1024;
+}
+#endif
 
 int dram_init(void)
 {
diff --git a/arch/arm/cpu/tegra-common/vpr.c b/arch/arm/cpu/tegra-common/vpr.c
new file mode 100644
index 0000000..f695811
--- /dev/null
+++ b/arch/arm/cpu/tegra-common/vpr.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2014, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* Tegra vpr routines */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch/mc.h>
+
+/* Configures VPR.  Right now, all we do is turn it off. */
+void config_vpr(void)
+{
+	struct mc_ctlr *mc = (struct mc_ctlr *)NV_PA_MC_BASE;
+
+	/* Turn VPR off */
+	writel(0, &mc->mc_video_protect_size_mb);
+	writel(TEGRA_MC_VIDEO_PROTECT_REG_WRITE_ACCESS_DISABLED,
+	       &mc->mc_video_protect_reg_ctrl);
+	/* read back to ensure the write went through */
+	readl(&mc->mc_video_protect_reg_ctrl);
+}