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ARM: tegra: Memory controller updates for v4.3-rc1 

Adds support for Tegra210, which allows the SMMU to be used on this new
 SoC generation.
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Merge tag 'tegra-for-4.3-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers

ARM: tegra: Memory controller updates for v4.3-rc1

Adds support for Tegra210, which allows the SMMU to be used on this new
SoC generation.

* tag 'tegra-for-4.3-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  memory: tegra: Add Tegra210 support
  memory: tegra: Add support for a variable-size client ID bitfield
  memory: tegra: Expose supported rates via debugfs

Signed-off-by: Olof Johansson <olof@lixom.net>
hifive-unleashed-5.1
Olof Johansson 2015-08-20 18:50:17 -07:00
parent 420f2629fa 588c43a7bd
commit 21815b9a24
11 changed files with 1174 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/iommu/Kconfig
View File

@ -222,7 +222,7 @@ config TEGRA_IOMMU_SMMU
select IOMMU_API
help
This driver supports the IOMMU hardware (SMMU) found on NVIDIA Tegra
SoCs (Tegra30 up to Tegra132).
SoCs (Tegra30 up to Tegra210).
config EXYNOS_IOMMU
bool "Exynos IOMMU Support"

1
drivers/memory/tegra/Makefile
View File

@ -4,6 +4,7 @@ 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
tegra-mc-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210.o
obj-$(CONFIG_TEGRA_MC) += tegra-mc.o

8
drivers/memory/tegra/mc.c
View File

@ -42,7 +42,6 @@
#define MC_ERR_STATUS_ADR_HI_MASK 0x3
#define MC_ERR_STATUS_SECURITY (1 << 17)
#define MC_ERR_STATUS_RW (1 << 16)
#define MC_ERR_STATUS_CLIENT_MASK 0x7f
#define MC_ERR_ADR 0x0c
@ -66,6 +65,9 @@ static const struct of_device_id tegra_mc_of_match[] = {
#endif
#ifdef CONFIG_ARCH_TEGRA_132_SOC
{ .compatible = "nvidia,tegra132-mc", .data = &tegra132_mc_soc },
#endif
#ifdef CONFIG_ARCH_TEGRA_210_SOC
{ .compatible = "nvidia,tegra210-mc", .data = &tegra210_mc_soc },
#endif
{ }
};
@ -283,7 +285,7 @@ static irqreturn_t tegra_mc_irq(int irq, void *data)
else
secure = "";
id = value & MC_ERR_STATUS_CLIENT_MASK;
id = value & mc->soc->client_id_mask;
for (i = 0; i < mc->soc->num_clients; i++) {
if (mc->soc->clients[i].id == id) {
@ -410,6 +412,8 @@ static int tegra_mc_probe(struct platform_device *pdev)
return err;
}
WARN(!mc->soc->client_id_mask, "Missing client ID mask for this SoC\n");
value = MC_INT_DECERR_MTS | MC_INT_SECERR_SEC | MC_INT_DECERR_VPR |
MC_INT_INVALID_APB_ASID_UPDATE | MC_INT_INVALID_SMMU_PAGE |
MC_INT_SECURITY_VIOLATION | MC_INT_DECERR_EMEM;

4
drivers/memory/tegra/mc.h
View File

@ -41,4 +41,8 @@ extern const struct tegra_mc_soc tegra124_mc_soc;
extern const struct tegra_mc_soc tegra132_mc_soc;
#endif
#ifdef CONFIG_ARCH_TEGRA_210_SOC
extern const struct tegra_mc_soc tegra210_mc_soc;
#endif
#endif /* MEMORY_TEGRA_MC_H */

1
drivers/memory/tegra/tegra114.c
View File

@ -944,5 +944,6 @@ const struct tegra_mc_soc tegra114_mc_soc = {
.num_clients = ARRAY_SIZE(tegra114_mc_clients),
.num_address_bits = 32,
.atom_size = 32,
.client_id_mask = 0x7f,
.smmu = &tegra114_smmu_soc,
};

42
drivers/memory/tegra/tegra124-emc.c
View File

@ -1027,7 +1027,40 @@ static int emc_debug_rate_set(void *data, u64 rate)
DEFINE_SIMPLE_ATTRIBUTE(emc_debug_rate_fops, emc_debug_rate_get,
emc_debug_rate_set, "%lld\n");
static void emc_debugfs_init(struct device *dev)
static int emc_debug_supported_rates_show(struct seq_file *s, void *data)
{
struct tegra_emc *emc = s->private;
const char *prefix = "";
unsigned int i;
for (i = 0; i < emc->num_timings; i++) {
struct emc_timing *timing = &emc->timings[i];
seq_printf(s, "%s%lu", prefix, timing->rate);
prefix = " ";
}
seq_puts(s, "\n");
return 0;
}
static int emc_debug_supported_rates_open(struct inode *inode,
struct file *file)
{
return single_open(file, emc_debug_supported_rates_show,
inode->i_private);
}
static const struct file_operations emc_debug_supported_rates_fops = {
.open = emc_debug_supported_rates_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static void emc_debugfs_init(struct device *dev, struct tegra_emc *emc)
{
struct dentry *root, *file;
struct clk *clk;
@ -1048,6 +1081,11 @@ static void emc_debugfs_init(struct device *dev)
&emc_debug_rate_fops);
if (!file)
dev_err(dev, "failed to create debugfs entry\n");
file = debugfs_create_file("supported_rates", S_IRUGO, root, emc,
&emc_debug_supported_rates_fops);
if (!file)
dev_err(dev, "failed to create debugfs entry\n");
}
static int tegra_emc_probe(struct platform_device *pdev)
@ -1119,7 +1157,7 @@ static int tegra_emc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, emc);
if (IS_ENABLED(CONFIG_DEBUG_FS))
emc_debugfs_init(&pdev->dev);
emc_debugfs_init(&pdev->dev, emc);
return 0;
};

2
drivers/memory/tegra/tegra124.c
View File

@ -1032,6 +1032,7 @@ const struct tegra_mc_soc tegra124_mc_soc = {
.num_clients = ARRAY_SIZE(tegra124_mc_clients),
.num_address_bits = 34,
.atom_size = 32,
.client_id_mask = 0x7f,
.smmu = &tegra124_smmu_soc,
.emem_regs = tegra124_mc_emem_regs,
.num_emem_regs = ARRAY_SIZE(tegra124_mc_emem_regs),
@ -1067,6 +1068,7 @@ const struct tegra_mc_soc tegra132_mc_soc = {
.num_clients = ARRAY_SIZE(tegra124_mc_clients),
.num_address_bits = 34,
.atom_size = 32,
.client_id_mask = 0x7f,
.smmu = &tegra132_smmu_soc,
};
#endif /* CONFIG_ARCH_TEGRA_132_SOC */

1080
drivers/memory/tegra/tegra210.c 100644
View File

File diff suppressed because it is too large Load Diff

1
drivers/memory/tegra/tegra30.c
View File

@ -966,5 +966,6 @@ const struct tegra_mc_soc tegra30_mc_soc = {
.num_clients = ARRAY_SIZE(tegra30_mc_clients),
.num_address_bits = 32,
.atom_size = 16,
.client_id_mask = 0x7f,
.smmu = &tegra30_smmu_soc,
};

36
include/dt-bindings/memory/tegra210-mc.h 100644
View File

@ -0,0 +1,36 @@
#ifndef DT_BINDINGS_MEMORY_TEGRA210_MC_H
#define DT_BINDINGS_MEMORY_TEGRA210_MC_H
#define TEGRA_SWGROUP_PTC 0
#define TEGRA_SWGROUP_DC 1
#define TEGRA_SWGROUP_DCB 2
#define TEGRA_SWGROUP_AFI 3
#define TEGRA_SWGROUP_AVPC 4
#define TEGRA_SWGROUP_HDA 5
#define TEGRA_SWGROUP_HC 6
#define TEGRA_SWGROUP_NVENC 7
#define TEGRA_SWGROUP_PPCS 8
#define TEGRA_SWGROUP_SATA 9
#define TEGRA_SWGROUP_MPCORE 10
#define TEGRA_SWGROUP_ISP2 11
#define TEGRA_SWGROUP_XUSB_HOST 12
#define TEGRA_SWGROUP_XUSB_DEV 13
#define TEGRA_SWGROUP_ISP2B 14
#define TEGRA_SWGROUP_TSEC 15
#define TEGRA_SWGROUP_A9AVP 16
#define TEGRA_SWGROUP_GPU 17
#define TEGRA_SWGROUP_SDMMC1A 18
#define TEGRA_SWGROUP_SDMMC2A 19
#define TEGRA_SWGROUP_SDMMC3A 20
#define TEGRA_SWGROUP_SDMMC4A 21
#define TEGRA_SWGROUP_VIC 22
#define TEGRA_SWGROUP_VI 23
#define TEGRA_SWGROUP_NVDEC 24
#define TEGRA_SWGROUP_APE 25
#define TEGRA_SWGROUP_NVJPG 26
#define TEGRA_SWGROUP_SE 27
#define TEGRA_SWGROUP_AXIAP 28
#define TEGRA_SWGROUP_ETR 29
#define TEGRA_SWGROUP_TSECB 30
#endif

2
include/soc/tegra/mc.h
View File

@ -102,6 +102,8 @@ struct tegra_mc_soc {
unsigned int num_address_bits;
unsigned int atom_size;
u8 client_id_mask;
const struct tegra_smmu_soc *smmu;
};