diff options
| -rw-r--r-- | drivers/soc/tegra/fuse/tegra-apbmisc.c | 19 | ||||
| -rw-r--r-- | include/soc/tegra/fuse.h | 1 |
2 files changed, 20 insertions, 0 deletions
diff --git a/drivers/soc/tegra/fuse/tegra-apbmisc.c b/drivers/soc/tegra/fuse/tegra-apbmisc.c index 92a2d646c183..946a2d9ad117 100644 --- a/drivers/soc/tegra/fuse/tegra-apbmisc.c +++ b/drivers/soc/tegra/fuse/tegra-apbmisc.c @@ -52,6 +52,25 @@ u8 tegra_get_platform(void) return (tegra_read_chipid() >> 20) & 0xf; } +bool tegra_is_silicon(void) +{ + switch (tegra_get_chip_id()) { + case TEGRA194: + if (tegra_get_platform() == 0) + return true; + + return false; + } + + /* + * Chips prior to Tegra194 have a different way of determining whether + * they are silicon or not. Since we never supported simulation on the + * older Tegra chips, don't bother extracting the information and just + * report that we're running on silicon. + */ + return true; +} + u32 tegra_read_straps(void) { WARN(!chipid, "Tegra ABP MISC not yet available\n"); diff --git a/include/soc/tegra/fuse.h b/include/soc/tegra/fuse.h index 214908fc5581..a9db917a1d06 100644 --- a/include/soc/tegra/fuse.h +++ b/include/soc/tegra/fuse.h @@ -24,6 +24,7 @@ u32 tegra_read_chipid(void); u8 tegra_get_chip_id(void); u8 tegra_get_platform(void); +bool tegra_is_silicon(void); enum tegra_revision { TEGRA_REVISION_UNKNOWN = 0, |