diff options
Diffstat (limited to 'arch/arm/cpu/armv7/tegra-common/ap20.c')
| -rw-r--r-- | arch/arm/cpu/armv7/tegra-common/ap20.c | 43 |
1 files changed, 38 insertions, 5 deletions
diff --git a/arch/arm/cpu/armv7/tegra-common/ap20.c b/arch/arm/cpu/armv7/tegra-common/ap20.c index 787b3e4b3b..913d8aaa77 100644 --- a/arch/arm/cpu/armv7/tegra-common/ap20.c +++ b/arch/arm/cpu/armv7/tegra-common/ap20.c @@ -23,18 +23,18 @@ #include <common.h> #include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/pinmux.h> #include <asm/arch/tegra.h> +#include <asm/arch-tegra/ap20.h> #include <asm/arch-tegra/bitfield.h> #include <asm/arch-tegra/clk_rst.h> #include <asm/arch-tegra/flow.h> -#include <asm/arch/clock.h> +#include <asm/arch-tegra/fuse.h> +#include <asm/arch-tegra/i2c.h> #include <asm/arch-tegra/pmc.h> -#include <asm/arch/pinmux.h> #include <asm/arch-tegra/scu.h> -#include <asm/arch-tegra/i2c.h> #include <asm/arch-tegra/warmboot.h> -#include <asm/arch-tegra/ap20.h> -#include "../../../../../board/nvidia/common/board.h" struct clk_pll_table { u16 n; @@ -94,6 +94,39 @@ enum tegra_family_t { #define GP_HIDREV 0x804 +int tegra_get_chip_type(void) +{ + struct fuse_regs *fuse = (struct fuse_regs *)NV_PA_FUSE_BASE; + uint tegra_sku_id; + + tegra_sku_id = readl(&fuse->sku_info) & 0xff; + + switch (tegra_sku_id) { + case SKU_ID_T20: + return TEGRA_SOC_T20; + case SKU_ID_T25SE: + case SKU_ID_AP25: + case SKU_ID_T25: + case SKU_ID_AP25E: + case SKU_ID_T25E: + return TEGRA_SOC_T25; + case SKU_ID_T30: + /* + * T30 has two options. We will return TEGRA_SOC_T30 until + * we have the fdt set up when it may change to + * TEGRA_SOC_T30_408MHZ depending on what we set PLLP to. + */ + if (clock_get_rate(CLOCK_ID_PERIPH) == 408000000) + return TEGRA_SOC_T30_408MHZ; + else + return TEGRA_SOC_T30; + + default: + /* unknown sku id */ + return TEGRA_SOC_UNKNOWN; + } +} + static enum tegra_family_t ap20_get_family(void) { u32 reg, chip_id; |