From: Thierry Reding <treding@xxxxxxxxxx>
Add support for FUSE block found on the Tegra234 SoC, which is largely
similar to the IP found on previous generations.
Reviewed-by: Jon Hunter <jonathanh@xxxxxxxxxx>
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
drivers/soc/tegra/fuse/fuse-tegra.c | 6 +++++-
drivers/soc/tegra/fuse/fuse-tegra30.c | 30 ++++++++++++++++++++++++++
drivers/soc/tegra/fuse/fuse.h | 10 ++++++++-
drivers/soc/tegra/fuse/tegra-apbmisc.c | 1 +
include/soc/tegra/fuse.h | 1 +
5 files changed, 46 insertions(+), 2 deletions(-)
diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
index 7e6b6ee59120..94b60a692b51 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra.c
@@ -49,6 +49,9 @@ static struct tegra_fuse *fuse = &(struct tegra_fuse) {
};
static const struct of_device_id tegra_fuse_match[] = {
+#ifdef CONFIG_ARCH_TEGRA_234_SOC
+ { .compatible = "nvidia,tegra234-efuse", .data = &tegra234_fuse_soc },
+#endif
#ifdef CONFIG_ARCH_TEGRA_194_SOC
{ .compatible = "nvidia,tegra194-efuse", .data = &tegra194_fuse_soc },
#endif
@@ -326,7 +329,8 @@ const struct attribute_group tegra_soc_attr_group = {
.attrs = tegra_soc_attr,
};
-#ifdef CONFIG_ARCH_TEGRA_194_SOC
+#if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \
+ IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC)
static ssize_t platform_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
diff --git a/drivers/soc/tegra/fuse/fuse-tegra30.c b/drivers/soc/tegra/fuse/fuse-tegra30.c
index 85accef41fa1..9ea7f0168457 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra30.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra30.c
@@ -356,3 +356,33 @@ const struct tegra_fuse_soc tegra194_fuse_soc = {
.soc_attr_group = &tegra194_soc_attr_group,
};
#endif
+
+#if defined(CONFIG_ARCH_TEGRA_234_SOC)
+static const struct nvmem_cell_lookup tegra234_fuse_lookups[] = {
+ {
+ .nvmem_name = "fuse",
+ .cell_name = "xusb-pad-calibration",
+ .dev_id = "3520000.padctl",
+ .con_id = "calibration",
+ }, {
+ .nvmem_name = "fuse",
+ .cell_name = "xusb-pad-calibration-ext",
+ .dev_id = "3520000.padctl",
+ .con_id = "calibration-ext",
+ },
+};
+
+static const struct tegra_fuse_info tegra234_fuse_info = {
+ .read = tegra30_fuse_read,
+ .size = 0x300,
+ .spare = 0x280,
+};
+
+const struct tegra_fuse_soc tegra234_fuse_soc = {
+ .init = tegra30_fuse_init,
+ .info = &tegra234_fuse_info,
+ .lookups = tegra234_fuse_lookups,
+ .num_lookups = ARRAY_SIZE(tegra234_fuse_lookups),
+ .soc_attr_group = &tegra194_soc_attr_group,
+};
+#endif
diff --git a/drivers/soc/tegra/fuse/fuse.h b/drivers/soc/tegra/fuse/fuse.h
index 9d4fc315a007..e057a58e2060 100644
--- a/drivers/soc/tegra/fuse/fuse.h
+++ b/drivers/soc/tegra/fuse/fuse.h
@@ -115,9 +115,17 @@ extern const struct tegra_fuse_soc tegra210_fuse_soc;
extern const struct tegra_fuse_soc tegra186_fuse_soc;
#endif
+#if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \
+ IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC)
+extern const struct attribute_group tegra194_soc_attr_group;
+#endif
+
#ifdef CONFIG_ARCH_TEGRA_194_SOC
extern const struct tegra_fuse_soc tegra194_fuse_soc;
-extern const struct attribute_group tegra194_soc_attr_group;
+#endif
+
+#ifdef CONFIG_ARCH_TEGRA_234_SOC
+extern const struct tegra_fuse_soc tegra234_fuse_soc;
#endif
#endif
diff --git a/drivers/soc/tegra/fuse/tegra-apbmisc.c b/drivers/soc/tegra/fuse/tegra-apbmisc.c
index 946a2d9ad117..0e4eb2656f44 100644
--- a/drivers/soc/tegra/fuse/tegra-apbmisc.c
+++ b/drivers/soc/tegra/fuse/tegra-apbmisc.c
@@ -56,6 +56,7 @@ bool tegra_is_silicon(void)
{
switch (tegra_get_chip_id()) {
case TEGRA194:
+ case TEGRA234:
if (tegra_get_platform() == 0)
return true;
diff --git a/include/soc/tegra/fuse.h b/include/soc/tegra/fuse.h
index a9db917a1d06..c702bd2911bc 100644
--- a/include/soc/tegra/fuse.h
+++ b/include/soc/tegra/fuse.h
@@ -14,6 +14,7 @@
#define TEGRA210 0x21
#define TEGRA186 0x18
#define TEGRA194 0x19
+#define TEGRA234 0x23
#define TEGRA_FUSE_SKU_CALIB_0 0xf0
#define TEGRA30_FUSE_SATA_CALIB 0x124
--
2.28.0
