From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 13 May 2015 15:59:35 +0000 (+0200)
Subject: Merge tag 'tegra-for-4.2-emc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra... 
X-Git-Tag: firefly_0821_release~176^2~1555^2~13
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=44fb3026ad28d2a2b935dc9c47ec2dffadca3f35;p=firefly-linux-kernel-4.4.55.git

Merge tag 'tegra-for-4.2-emc' of git://git./linux/kernel/git/tegra/linux into next/drivers

Merge "ARM: tegra: Add EMC driver for v4.2-rc1" from Thierry Reding:

This introduces the EMC driver that's required to scale the external
memory frequency.

* tag 'tegra-for-4.2-emc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  memory: tegra: Add EMC frequency debugfs entry
  memory: tegra: Add EMC (external memory controller) driver
  memory: tegra: Add API needed by the EMC driver
  of: Add Tegra124 EMC bindings
  of: Document timings subnode of nvidia,tegra-mc
---

44fb3026ad28d2a2b935dc9c47ec2dffadca3f35
diff --cc drivers/memory/tegra/Makefile
index 9d4f4319b527,c0129602ffd4..6a0b9ac54f05
--- a/drivers/memory/tegra/Makefile
+++ b/drivers/memory/tegra/Makefile
@@@ -3,6 -3,7 +3,8 @@@ tegra-mc-y := mc.
  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-$(CONFIG_TEGRA_MC) += tegra-mc.o
+ 
+ obj-$(CONFIG_TEGRA124_EMC) += tegra124-emc.o
diff --cc drivers/memory/tegra/tegra124.c
index b996dfb9358b,3e9a99a556e1..966e1557e6f4
--- a/drivers/memory/tegra/tegra124.c
+++ b/drivers/memory/tegra/tegra124.c
@@@ -991,38 -1033,7 +1033,40 @@@ const struct tegra_mc_soc tegra124_mc_s
  	.num_address_bits = 34,
  	.atom_size = 32,
  	.smmu = &tegra124_smmu_soc,
+ 	.emem_regs = tegra124_mc_emem_regs,
+ 	.num_emem_regs = ARRAY_SIZE(tegra124_mc_emem_regs),
  };
  #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 */