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author | Lokesh Vutla <lokeshvutla@ti.com> | 2013-07-30 10:48:52 +0530 |
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committer | Tom Rini <trini@ti.com> | 2013-08-15 08:51:10 -0400 |
commit | 94d77fb656d49f2b0efe2de5605a52c5145d2c3b (patch) | |
tree | 0730083980308d786e0c44ceb61e4c156748b071 /arch/arm/include/asm/arch-am33xx/clock.h | |
parent | fdce7b633a1de24456226b18527cc7900c34282a (diff) | |
download | u-boot-94d77fb656d49f2b0efe2de5605a52c5145d2c3b.tar.gz u-boot-94d77fb656d49f2b0efe2de5605a52c5145d2c3b.tar.xz u-boot-94d77fb656d49f2b0efe2de5605a52c5145d2c3b.zip |
ARM: AM33xx: Cleanup dplls data
Locking sequence for all the dplls is same.
In the current code same sequence is done repeatedly
for each dpll. Instead have a generic function
for locking dplls and pass dpll data to that function.
This is derived from OMAP4 boards.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Tested-by: Heiko Schocher <hs@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'arch/arm/include/asm/arch-am33xx/clock.h')
-rw-r--r-- | arch/arm/include/asm/arch-am33xx/clock.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-am33xx/clock.h b/arch/arm/include/asm/arch-am33xx/clock.h index 44c1e5dab8..703b80e518 100644 --- a/arch/arm/include/asm/arch-am33xx/clock.h +++ b/arch/arm/include/asm/arch-am33xx/clock.h @@ -13,4 +13,74 @@ #include <asm/arch/clocks_am33xx.h> +#define LDELAY 1000000 + +/* CM_CLKMODE_DPLL */ +#define CM_CLKMODE_DPLL_REGM4XEN_SHIFT 11 +#define CM_CLKMODE_DPLL_REGM4XEN_MASK (1 << 11) +#define CM_CLKMODE_DPLL_LPMODE_EN_SHIFT 10 +#define CM_CLKMODE_DPLL_LPMODE_EN_MASK (1 << 10) +#define CM_CLKMODE_DPLL_RELOCK_RAMP_EN_SHIFT 9 +#define CM_CLKMODE_DPLL_RELOCK_RAMP_EN_MASK (1 << 9) +#define CM_CLKMODE_DPLL_DRIFTGUARD_EN_SHIFT 8 +#define CM_CLKMODE_DPLL_DRIFTGUARD_EN_MASK (1 << 8) +#define CM_CLKMODE_DPLL_RAMP_RATE_SHIFT 5 +#define CM_CLKMODE_DPLL_RAMP_RATE_MASK (0x7 << 5) +#define CM_CLKMODE_DPLL_EN_SHIFT 0 +#define CM_CLKMODE_DPLL_EN_MASK (0x7 << 0) + +#define CM_CLKMODE_DPLL_DPLL_EN_SHIFT 0 +#define CM_CLKMODE_DPLL_DPLL_EN_MASK 7 + +#define DPLL_EN_STOP 1 +#define DPLL_EN_MN_BYPASS 4 +#define DPLL_EN_LOW_POWER_BYPASS 5 +#define DPLL_EN_LOCK 7 + +/* CM_IDLEST_DPLL fields */ +#define ST_DPLL_CLK_MASK 1 + +/* CM_CLKSEL_DPLL */ +#define CM_CLKSEL_DPLL_M_SHIFT 8 +#define CM_CLKSEL_DPLL_M_MASK (0x7FF << 8) +#define CM_CLKSEL_DPLL_N_SHIFT 0 +#define CM_CLKSEL_DPLL_N_MASK 0x7F + +struct dpll_params { + u32 m; + u32 n; + s8 m2; + s8 m3; + s8 m4; + s8 m5; + s8 m6; +}; + +struct dpll_regs { + u32 cm_clkmode_dpll; + u32 cm_idlest_dpll; + u32 cm_autoidle_dpll; + u32 cm_clksel_dpll; + u32 cm_div_m2_dpll; + u32 cm_div_m3_dpll; + u32 cm_div_m4_dpll; + u32 cm_div_m5_dpll; + u32 cm_div_m6_dpll; +}; + +extern const struct dpll_regs dpll_mpu_regs; +extern const struct dpll_regs dpll_core_regs; +extern const struct dpll_regs dpll_per_regs; +extern const struct dpll_regs dpll_ddr_regs; +extern const struct dpll_params dpll_mpu; +extern const struct dpll_params dpll_core; +extern const struct dpll_params dpll_per; +extern const struct dpll_params dpll_ddr; + +extern const struct cm_wkuppll *cmwkup; + +void setup_dplls(void); +const struct dpll_params *get_dpll_ddr_params(void); +void do_setup_dpll(const struct dpll_regs *, const struct dpll_params *); + #endif |