From 242b1d713386e8e2fd7f62cc1ed4681a12290848 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 7 Nov 2014 16:10:41 +0100
Subject: memory: tegra: Add Tegra132 support

The memory controller on Tegra132 is very similar to the one found on
Tegra124. But the Denver CPUs don't have an outer cache, so dcache
maintenance is done slightly differently.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/memory/tegra/Makefile   |  1 +
 drivers/memory/tegra/mc.c       |  3 +++
 drivers/memory/tegra/mc.h       |  4 ++++
 drivers/memory/tegra/tegra124.c | 33 +++++++++++++++++++++++++++++++++
 4 files changed, 41 insertions(+)

(limited to 'drivers/memory/tegra')

diff --git a/drivers/memory/tegra/Makefile b/drivers/memory/tegra/Makefile
index 0d9f497b786c..9d4f4319b527 100644
--- a/drivers/memory/tegra/Makefile
+++ b/drivers/memory/tegra/Makefile
@@ -3,5 +3,6 @@ tegra-mc-y := mc.o
 tegra-mc-$(CONFIG_ARCH_TEGRA_3x_SOC)  += tegra30.o
 tegra-mc-$(CONFIG_ARCH_TEGRA_114_SOC) += tegra114.o
 tegra-mc-$(CONFIG_ARCH_TEGRA_124_SOC) += tegra124.o
+tegra-mc-$(CONFIG_ARCH_TEGRA_132_SOC) += tegra124.o
 
 obj-$(CONFIG_TEGRA_MC) += tegra-mc.o
diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c
index fe3c44e7e1d1..9b7c1645fd59 100644
--- a/drivers/memory/tegra/mc.c
+++ b/drivers/memory/tegra/mc.c
@@ -57,6 +57,9 @@ static const struct of_device_id tegra_mc_of_match[] = {
 #endif
 #ifdef CONFIG_ARCH_TEGRA_124_SOC
 	{ .compatible = "nvidia,tegra124-mc", .data = &tegra124_mc_soc },
+#endif
+#ifdef CONFIG_ARCH_TEGRA_132_SOC
+	{ .compatible = "nvidia,tegra132-mc", .data = &tegra132_mc_soc },
 #endif
 	{ }
 };
diff --git a/drivers/memory/tegra/mc.h b/drivers/memory/tegra/mc.h
index d5d21147fc77..b7361b0a6696 100644
--- a/drivers/memory/tegra/mc.h
+++ b/drivers/memory/tegra/mc.h
@@ -37,4 +37,8 @@ extern const struct tegra_mc_soc tegra114_mc_soc;
 extern const struct tegra_mc_soc tegra124_mc_soc;
 #endif
 
+#ifdef CONFIG_ARCH_TEGRA_132_SOC
+extern const struct tegra_mc_soc tegra132_mc_soc;
+#endif
+
 #endif /* MEMORY_TEGRA_MC_H */
diff --git a/drivers/memory/tegra/tegra124.c b/drivers/memory/tegra/tegra124.c
index e63e05769d0a..b996dfb9358b 100644
--- a/drivers/memory/tegra/tegra124.c
+++ b/drivers/memory/tegra/tegra124.c
@@ -993,3 +993,36 @@ const struct tegra_mc_soc tegra124_mc_soc = {
 	.smmu = &tegra124_smmu_soc,
 };
 #endif /* CONFIG_ARCH_TEGRA_124_SOC */
+
+#ifdef CONFIG_ARCH_TEGRA_132_SOC
+static void tegra132_flush_dcache(struct page *page, unsigned long offset,
+				  size_t size)
+{
+	void *virt = page_address(page) + offset;
+
+	__flush_dcache_area(virt, size);
+}
+
+static const struct tegra_smmu_ops tegra132_smmu_ops = {
+	.flush_dcache = tegra132_flush_dcache,
+};
+
+static const struct tegra_smmu_soc tegra132_smmu_soc = {
+	.clients = tegra124_mc_clients,
+	.num_clients = ARRAY_SIZE(tegra124_mc_clients),
+	.swgroups = tegra124_swgroups,
+	.num_swgroups = ARRAY_SIZE(tegra124_swgroups),
+	.supports_round_robin_arbitration = true,
+	.supports_request_limit = true,
+	.num_asids = 128,
+	.ops = &tegra132_smmu_ops,
+};
+
+const struct tegra_mc_soc tegra132_mc_soc = {
+	.clients = tegra124_mc_clients,
+	.num_clients = ARRAY_SIZE(tegra124_mc_clients),
+	.num_address_bits = 34,
+	.atom_size = 32,
+	.smmu = &tegra132_smmu_soc,
+};
+#endif /* CONFIG_ARCH_TEGRA_132_SOC */
-- 
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