diff options
Diffstat (limited to 'drivers/soc/tegra/fuse/fuse-tegra.c')
| -rw-r--r-- | drivers/soc/tegra/fuse/fuse-tegra.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c index 802717b9f6a3..db65ddb6a5d2 100644 --- a/drivers/soc/tegra/fuse/fuse-tegra.c +++ b/drivers/soc/tegra/fuse/fuse-tegra.c @@ -300,6 +300,59 @@ static void tegra_enable_fuse_clk(void __iomem *base) writel(reg, base + 0x14); } +static ssize_t major_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%d\n", tegra_get_major_rev()); +} + +static DEVICE_ATTR_RO(major); + +static ssize_t minor_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%d\n", tegra_get_minor_rev()); +} + +static DEVICE_ATTR_RO(minor); + +static struct attribute *tegra_soc_attr[] = { + &dev_attr_major.attr, + &dev_attr_minor.attr, + NULL, +}; + +const struct attribute_group tegra_soc_attr_group = { + .attrs = tegra_soc_attr, +}; + +#ifdef CONFIG_ARCH_TEGRA_194_SOC +static ssize_t platform_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + /* + * Displays the value in the 'pre_si_platform' field of the HIDREV + * register for Tegra194 devices. A value of 0 indicates that the + * platform type is silicon and all other non-zero values indicate + * the type of simulation platform is being used. + */ + return sprintf(buf, "%d\n", (tegra_read_chipid() >> 20) & 0xf); +} + +static DEVICE_ATTR_RO(platform); + +static struct attribute *tegra194_soc_attr[] = { + &dev_attr_major.attr, + &dev_attr_minor.attr, + &dev_attr_platform.attr, + NULL, +}; + +const struct attribute_group tegra194_soc_attr_group = { + .attrs = tegra194_soc_attr, +}; +#endif + struct device * __init tegra_soc_device_register(void) { struct soc_device_attribute *attr; @@ -312,6 +365,7 @@ struct device * __init tegra_soc_device_register(void) attr->family = kasprintf(GFP_KERNEL, "Tegra"); attr->revision = kasprintf(GFP_KERNEL, "%d", tegra_sku_info.revision); attr->soc_id = kasprintf(GFP_KERNEL, "%u", tegra_get_chip_id()); + attr->custom_attr_group = fuse->soc->soc_attr_group; dev = soc_device_register(attr); if (IS_ERR(dev)) { |