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authorTimo Alho <talho@nvidia.com>2017-03-06 15:47:20 +0200
committerThierry Reding <treding@nvidia.com>2017-12-13 12:43:29 +0100
commit83468fe259bf827f350b118f25bce99dc0bdf597 (patch)
tree4797a04a576b1acbc891448f719a66599c4382d3 /drivers/soc
parent753863d7f8b739c10c87b8f8c356c7918d37fdcd (diff)
downloadlinux-83468fe259bf827f350b118f25bce99dc0bdf597.tar.bz2
soc/tegra: fuse: Add Tegra186 support
Tegra210 and Tegra186 are mostly compatible from a fuses point of view. However, speedo support is implemented in the BPMP firmware, hence the implementation needs to be skipped in the fuses driver. Signed-off-by: Timo Alho <talho@nvidia.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> [treding@nvidia.com: reword commit message] Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/soc')
-rw-r--r--drivers/soc/tegra/fuse/fuse-tegra.c3
-rw-r--r--drivers/soc/tegra/fuse/fuse-tegra30.c21
-rw-r--r--drivers/soc/tegra/fuse/fuse.h4
3 files changed, 26 insertions, 2 deletions
diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
index b7c552e3133c..d7ccfee51b1a 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra.c
@@ -103,6 +103,9 @@ static struct tegra_fuse *fuse = &(struct tegra_fuse) {
};
static const struct of_device_id tegra_fuse_match[] = {
+#ifdef CONFIG_ARCH_TEGRA_186_SOC
+ { .compatible = "nvidia,tegra186-efuse", .data = &tegra186_fuse_soc },
+#endif
#ifdef CONFIG_ARCH_TEGRA_210_SOC
{ .compatible = "nvidia,tegra210-efuse", .data = &tegra210_fuse_soc },
#endif
diff --git a/drivers/soc/tegra/fuse/fuse-tegra30.c b/drivers/soc/tegra/fuse/fuse-tegra30.c
index 882607bcaa6c..497eb044095f 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra30.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra30.c
@@ -46,7 +46,8 @@
defined(CONFIG_ARCH_TEGRA_114_SOC) || \
defined(CONFIG_ARCH_TEGRA_124_SOC) || \
defined(CONFIG_ARCH_TEGRA_132_SOC) || \
- defined(CONFIG_ARCH_TEGRA_210_SOC)
+ defined(CONFIG_ARCH_TEGRA_210_SOC) || \
+ defined(CONFIG_ARCH_TEGRA_186_SOC)
static u32 tegra30_fuse_read_early(struct tegra_fuse *fuse, unsigned int offset)
{
return readl_relaxed(fuse->base + FUSE_BEGIN + offset);
@@ -98,7 +99,10 @@ static void __init tegra30_fuse_init(struct tegra_fuse *fuse)
fuse->read = tegra30_fuse_read;
tegra_init_revision();
- fuse->soc->speedo_init(&tegra_sku_info);
+
+ if (fuse->soc->speedo_init)
+ fuse->soc->speedo_init(&tegra_sku_info);
+
tegra30_fuse_add_randomness();
}
#endif
@@ -158,3 +162,16 @@ const struct tegra_fuse_soc tegra210_fuse_soc = {
.info = &tegra210_fuse_info,
};
#endif
+
+#if defined(CONFIG_ARCH_TEGRA_186_SOC)
+static const struct tegra_fuse_info tegra186_fuse_info = {
+ .read = tegra30_fuse_read,
+ .size = 0x300,
+ .spare = 0x280,
+};
+
+const struct tegra_fuse_soc tegra186_fuse_soc = {
+ .init = tegra30_fuse_init,
+ .info = &tegra186_fuse_info,
+};
+#endif
diff --git a/drivers/soc/tegra/fuse/fuse.h b/drivers/soc/tegra/fuse/fuse.h
index 10c2076d5089..f355b9d54915 100644
--- a/drivers/soc/tegra/fuse/fuse.h
+++ b/drivers/soc/tegra/fuse/fuse.h
@@ -105,4 +105,8 @@ extern const struct tegra_fuse_soc tegra124_fuse_soc;
extern const struct tegra_fuse_soc tegra210_fuse_soc;
#endif
+#ifdef CONFIG_ARCH_TEGRA_186_SOC
+extern const struct tegra_fuse_soc tegra186_fuse_soc;
+#endif
+
#endif