diff options
| -rw-r--r-- | arch/arm/mach-tegra/tegra.c | 1 | ||||
| -rw-r--r-- | drivers/soc/tegra/fuse/fuse-tegra.c | 11 | ||||
| -rw-r--r-- | drivers/soc/tegra/fuse/tegra-apbmisc.c | 7 | ||||
| -rw-r--r-- | include/soc/tegra/fuse.h | 1 |
4 files changed, 14 insertions, 6 deletions
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c index e5733fa7..c9176db 100644 --- a/arch/arm/mach-tegra/tegra.c +++ b/arch/arm/mach-tegra/tegra.c @@ -73,7 +73,6 @@ u32 tegra_uart_config[3] = { static void __init tegra_init_early(void) { of_register_trusted_foundations(); - tegra_init_fuse(); tegra_cpu_reset_handler_init(); tegra_powergate_init(); } diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c index 03742ed..11a5043 100644 --- a/drivers/soc/tegra/fuse/fuse-tegra.c +++ b/drivers/soc/tegra/fuse/fuse-tegra.c @@ -23,6 +23,7 @@ #include <linux/of_address.h> #include <linux/io.h> +#include <soc/tegra/common.h> #include <soc/tegra/fuse.h> #include "fuse.h" @@ -125,11 +126,14 @@ int tegra_fuse_create_sysfs(struct device *dev, int size, return device_create_bin_file(dev, &fuse_bin_attr); } -void __init tegra_init_fuse(void) +static int __init tegra_init_fuse(void) { struct device_node *np; void __iomem *car_base; + if (!soc_is_tegra()) + return 0; + tegra_init_apbmisc(); np = of_find_matching_node(NULL, car_match); @@ -139,7 +143,7 @@ void __init tegra_init_fuse(void) iounmap(car_base); } else { pr_err("Could not enable fuse clk. ioremap tegra car failed.\n"); - return; + return -ENXIO; } if (tegra_get_chip_id() == TEGRA20) @@ -153,4 +157,7 @@ void __init tegra_init_fuse(void) tegra_sku_info.core_process_id); pr_debug("Tegra CPU Speedo ID %d, Soc Speedo ID %d\n", tegra_sku_info.cpu_speedo_id, tegra_sku_info.soc_speedo_id); + + return 0; } +early_initcall(tegra_init_fuse); diff --git a/drivers/soc/tegra/fuse/tegra-apbmisc.c b/drivers/soc/tegra/fuse/tegra-apbmisc.c index bfc1d54..3bf5aba 100644 --- a/drivers/soc/tegra/fuse/tegra-apbmisc.c +++ b/drivers/soc/tegra/fuse/tegra-apbmisc.c @@ -38,9 +38,12 @@ u32 tegra_read_chipid(void) u8 tegra_get_chip_id(void) { - u32 id = tegra_read_chipid(); + if (!apbmisc_base) { + WARN(1, "Tegra Chip ID not yet available\n"); + return 0; + } - return (id >> 8) & 0xff; + return (tegra_read_chipid() >> 8) & 0xff; } u32 tegra_read_straps(void) diff --git a/include/soc/tegra/fuse.h b/include/soc/tegra/fuse.h index 738712d..8e12494 100644 --- a/include/soc/tegra/fuse.h +++ b/include/soc/tegra/fuse.h @@ -56,7 +56,6 @@ struct tegra_sku_info { u32 tegra_read_straps(void); u32 tegra_read_chipid(void); -void tegra_init_fuse(void); int tegra_fuse_readl(unsigned long offset, u32 *value); extern struct tegra_sku_info tegra_sku_info; |