diff options
Diffstat (limited to 'arch/arm/include/asm')
-rw-r--r-- | arch/arm/include/asm/arch-tegra/clk_rst.h | 11 | ||||
-rw-r--r-- | arch/arm/include/asm/arch-tegra/clock.h | 12 | ||||
-rw-r--r-- | arch/arm/include/asm/arch-tegra20/clock-tables.h | 7 |
3 files changed, 28 insertions, 2 deletions
diff --git a/arch/arm/include/asm/arch-tegra/clk_rst.h b/arch/arm/include/asm/arch-tegra/clk_rst.h index 8c3be91..7b548c2 100644 --- a/arch/arm/include/asm/arch-tegra/clk_rst.h +++ b/arch/arm/include/asm/arch-tegra/clk_rst.h @@ -27,8 +27,7 @@ /* PLL registers - there are several PLLs in the clock controller */ struct clk_pll { uint pll_base; /* the control register */ - uint pll_out; /* output control */ - uint reserved; + uint pll_out[2]; /* output control */ uint pll_misc; /* other misc things */ }; @@ -112,6 +111,14 @@ struct clk_rst_ctlr { #define PLL_DIVM_SHIFT 0 #define PLL_DIVM_MASK (0x1f << PLL_DIVM_SHIFT) +/* CLK_RST_CONTROLLER_PLLx_OUTx_0 */ +#define PLL_OUT_RSTN (1 << 0) +#define PLL_OUT_CLKEN (1 << 1) +#define PLL_OUT_OVRRIDE (1 << 2) + +#define PLL_OUT_RATIO_SHIFT 8 +#define PLL_OUT_RATIO_MASK (0xffU << PLL_OUT_RATIO_SHIFT) + /* CLK_RST_CONTROLLER_PLLx_MISC_0 */ #define PLL_CPCON_SHIFT 8 #define PLL_CPCON_MASK (15U << PLL_CPCON_SHIFT) diff --git a/arch/arm/include/asm/arch-tegra/clock.h b/arch/arm/include/asm/arch-tegra/clock.h index 3eff163..eac1dc2 100644 --- a/arch/arm/include/asm/arch-tegra/clock.h +++ b/arch/arm/include/asm/arch-tegra/clock.h @@ -58,6 +58,18 @@ unsigned long clock_start_pll(enum clock_id id, u32 divm, u32 divn, u32 divp, u32 cpcon, u32 lfcon); /** + * Set PLL output frequency + * + * @param clkid clock id + * @param pllout pll output id + * @param rate desired output rate + * + * @return 0 if ok, -1 on error (invalid clock id or no suitable divider) + */ +int clock_set_pllout(enum clock_id clkid, enum pll_out_id pllout, + unsigned rate); + +/** * Read low-level parameters of a PLL. * * @param id clock id to read (note: USB is not supported) diff --git a/arch/arm/include/asm/arch-tegra20/clock-tables.h b/arch/arm/include/asm/arch-tegra20/clock-tables.h index f2b2769..53708e0 100644 --- a/arch/arm/include/asm/arch-tegra20/clock-tables.h +++ b/arch/arm/include/asm/arch-tegra20/clock-tables.h @@ -176,6 +176,13 @@ enum periph_id { PERIPH_ID_NONE = -1, }; +enum pll_out_id { + PLL_OUT1, + PLL_OUT2, + PLL_OUT3, + PLL_OUT4 +}; + /* Converts a clock number to a clock register: 0=L, 1=H, 2=U */ #define PERIPH_REG(id) ((id) >> 5) |