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author | Lokesh Vutla <lokeshvutla@ti.com> | 2015-07-28 14:16:44 +0530 |
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committer | Tom Rini <trini@konsulko.com> | 2015-08-12 20:47:52 -0400 |
commit | 7b50e1599f4e6551a3348ca5f061a596f6f6896e (patch) | |
tree | 5377f6c888f9f71cb4e8eb6f58de36d1cf41471d /arch/arm | |
parent | c321a2362463ce54ae73ef59bee4b620d9f26acf (diff) | |
download | u-boot-imx-7b50e1599f4e6551a3348ca5f061a596f6f6896e.zip u-boot-imx-7b50e1599f4e6551a3348ca5f061a596f6f6896e.tar.gz u-boot-imx-7b50e1599f4e6551a3348ca5f061a596f6f6896e.tar.bz2 |
ARM: keystone2: Fix dev and arm speed detection
Use common devspeed and armspeed definitions.
Also fix reading efuse bootrom register.
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/mach-keystone/clock-k2e.c | 16 | ||||
-rw-r--r-- | arch/arm/mach-keystone/clock-k2hk.c | 32 | ||||
-rw-r--r-- | arch/arm/mach-keystone/clock-k2l.c | 32 | ||||
-rw-r--r-- | arch/arm/mach-keystone/clock.c | 63 | ||||
-rw-r--r-- | arch/arm/mach-keystone/include/mach/clock-k2e.h | 15 | ||||
-rw-r--r-- | arch/arm/mach-keystone/include/mach/clock-k2hk.h | 14 | ||||
-rw-r--r-- | arch/arm/mach-keystone/include/mach/clock-k2l.h | 14 | ||||
-rw-r--r-- | arch/arm/mach-keystone/include/mach/clock.h | 15 | ||||
-rw-r--r-- | arch/arm/mach-keystone/include/mach/hardware.h | 7 |
9 files changed, 72 insertions, 136 deletions
diff --git a/arch/arm/mach-keystone/clock-k2e.c b/arch/arm/mach-keystone/clock-k2e.c index 31f6661..42092e1 100644 --- a/arch/arm/mach-keystone/clock-k2e.c +++ b/arch/arm/mach-keystone/clock-k2e.c @@ -17,22 +17,6 @@ const struct keystone_pll_regs keystone_pll_regs[] = { [DDR3_PLL] = {KS2_DDR3APLLCTL0, KS2_DDR3APLLCTL1}, }; -int dev_speeds[] = { - SPD800, - SPD850, - SPD1000, - SPD1250, - SPD1350, - SPD1400, - SPD1500, - SPD1400, - SPD1350, - SPD1250, - SPD1000, - SPD850, - SPD800 -}; - /** * pll_freq_get - get pll frequency * Fout = Fref * NF(mult) / NR(prediv) / OD diff --git a/arch/arm/mach-keystone/clock-k2hk.c b/arch/arm/mach-keystone/clock-k2hk.c index 1591960..96a9f72 100644 --- a/arch/arm/mach-keystone/clock-k2hk.c +++ b/arch/arm/mach-keystone/clock-k2hk.c @@ -19,38 +19,6 @@ const struct keystone_pll_regs keystone_pll_regs[] = { [DDR3B_PLL] = {KS2_DDR3BPLLCTL0, KS2_DDR3BPLLCTL1}, }; -int dev_speeds[] = { - SPD800, - SPD1000, - SPD1200, - SPD800, - SPD800, - SPD800, - SPD800, - SPD800, - SPD1200, - SPD1000, - SPD800, - SPD800, - SPD800, -}; - -int arm_speeds[] = { - SPD800, - SPD1000, - SPD1200, - SPD1350, - SPD1400, - SPD800, - SPD1400, - SPD1350, - SPD1200, - SPD1000, - SPD800, - SPD800, - SPD800, -}; - /** * pll_freq_get - get pll frequency * Fout = Fref * NF(mult) / NR(prediv) / OD diff --git a/arch/arm/mach-keystone/clock-k2l.c b/arch/arm/mach-keystone/clock-k2l.c index 1c5e4d5..80c1f51 100644 --- a/arch/arm/mach-keystone/clock-k2l.c +++ b/arch/arm/mach-keystone/clock-k2l.c @@ -18,38 +18,6 @@ const struct keystone_pll_regs keystone_pll_regs[] = { [DDR3_PLL] = {KS2_DDR3APLLCTL0, KS2_DDR3APLLCTL1}, }; -int dev_speeds[] = { - SPD800, - SPD1000, - SPD1200, - SPD800, - SPD800, - SPD800, - SPD800, - SPD800, - SPD1200, - SPD1000, - SPD800, - SPD800, - SPD800, -}; - -int arm_speeds[] = { - SPD800, - SPD1000, - SPD1200, - SPD1350, - SPD1400, - SPD800, - SPD1400, - SPD1350, - SPD1200, - SPD1000, - SPD800, - SPD800, - SPD800, -}; - /** * pll_freq_get - get pll frequency * Fout = Fref * NF(mult) / NR(prediv) / OD diff --git a/arch/arm/mach-keystone/clock.c b/arch/arm/mach-keystone/clock.c index b5b66e4..aaeef79 100644 --- a/arch/arm/mach-keystone/clock.c +++ b/arch/arm/mach-keystone/clock.c @@ -11,7 +11,19 @@ #include <asm/arch/clock.h> #include <asm/arch/clock_defs.h> -#define MAX_SPEEDS 13 +/* DEV and ARM speed definitions as specified in DEVSPEED register */ +int __weak speeds[DEVSPEED_NUMSPDS] = { + SPD1000, + SPD1200, + SPD1350, + SPD1400, + SPD1500, + SPD1400, + SPD1350, + SPD1200, + SPD1000, + SPD800, +}; static void wait_for_completion(const struct pll_init_data *data) { @@ -199,43 +211,44 @@ void init_plls(int num_pll, struct pll_init_data *config) init_pll(&config[i]); } -static int get_max_speed(u32 val, int *speeds) +static int get_max_speed(u32 val, u32 speed_supported) { - int j; + int speed; - if (!val) - return speeds[0]; - - for (j = 1; j < MAX_SPEEDS; j++) { - if (val == 1) - return speeds[j]; - val >>= 1; + /* Left most setbit gives the speed */ + for (speed = DEVSPEED_NUMSPDS; speed >= 0; speed--) { + if ((val & BIT(speed)) & speed_supported) + return speeds[speed]; } + /* If no bit is set, use SPD800 */ return SPD800; } -#ifdef CONFIG_SOC_K2HK -static u32 read_efuse_bootrom(void) -{ - return (cpu_revision() > 1) ? __raw_readl(KS2_EFUSE_BOOTROM) : - __raw_readl(KS2_REV1_DEVSPEED); -} -#else static inline u32 read_efuse_bootrom(void) { - return __raw_readl(KS2_EFUSE_BOOTROM); + if (cpu_is_k2hk() && (cpu_revision() <= 1)) + return __raw_readl(KS2_REV1_DEVSPEED); + else + return __raw_readl(KS2_EFUSE_BOOTROM); } -#endif -#ifndef CONFIG_SOC_K2E -inline int get_max_arm_speed(void) +int get_max_arm_speed(void) { - return get_max_speed(read_efuse_bootrom() & 0xffff, arm_speeds); + u32 armspeed = read_efuse_bootrom(); + + armspeed = (armspeed & DEVSPEED_ARMSPEED_MASK) >> + DEVSPEED_ARMSPEED_SHIFT; + + return get_max_speed(armspeed, ARM_SUPPORTED_SPEEDS); } -#endif -inline int get_max_dev_speed(void) +int get_max_dev_speed(void) { - return get_max_speed((read_efuse_bootrom() >> 16) & 0xffff, dev_speeds); + u32 devspeed = read_efuse_bootrom(); + + devspeed = (devspeed & DEVSPEED_DEVSPEED_MASK) >> + DEVSPEED_DEVSPEED_SHIFT; + + return get_max_speed(devspeed, DEV_SUPPORTED_SPEEDS); } diff --git a/arch/arm/mach-keystone/include/mach/clock-k2e.h b/arch/arm/mach-keystone/include/mach/clock-k2e.h index 68e15ac..6f53e43 100644 --- a/arch/arm/mach-keystone/include/mach/clock-k2e.h +++ b/arch/arm/mach-keystone/include/mach/clock-k2e.h @@ -58,17 +58,6 @@ enum pll_type_e { TETRIS_PLL, }; -enum { - SPD800, - SPD850, - SPD1000, - SPD1250, - SPD1350, - SPD1400, - SPD1500, - SPD_RSV -}; - #define CORE_PLL_800 {CORE_PLL, 16, 1, 2} #define CORE_PLL_850 {CORE_PLL, 17, 1, 2} #define CORE_PLL_1000 {CORE_PLL, 20, 1, 2} @@ -83,4 +72,8 @@ enum { #define DDR3_PLL_800 {DDR3_PLL, 16, 1, 2} #define DDR3_PLL_333 {DDR3_PLL, 20, 1, 6} +/* k2e DEV supports 800, 850, 1000, 1250, 1350, 1400, 1500 MHz */ +#define DEV_SUPPORTED_SPEEDS 0xFFF +#define ARM_SUPPORTED_SPEEDS 0 + #endif diff --git a/arch/arm/mach-keystone/include/mach/clock-k2hk.h b/arch/arm/mach-keystone/include/mach/clock-k2hk.h index f28d5f0..c41210c 100644 --- a/arch/arm/mach-keystone/include/mach/clock-k2hk.h +++ b/arch/arm/mach-keystone/include/mach/clock-k2hk.h @@ -64,15 +64,6 @@ enum pll_type_e { DDR3B_PLL, }; -enum { - SPD800, - SPD1000, - SPD1200, - SPD1350, - SPD1400, - SPD_RSV -}; - #define CORE_PLL_799 {CORE_PLL, 13, 1, 2} #define CORE_PLL_983 {CORE_PLL, 16, 1, 2} #define CORE_PLL_999 {CORE_PLL, 122, 15, 1} @@ -100,4 +91,9 @@ enum { #define DDR3_PLL_800(x) {DDR3##x##_PLL, 16, 1, 2} #define DDR3_PLL_333(x) {DDR3##x##_PLL, 20, 1, 6} +/* k2h DEV supports 800, 1000, 1200 MHz */ +#define DEV_SUPPORTED_SPEEDS 0x383 +/* k2h ARM supportd 800, 1000, 1200, 1350, 1400 MHz */ +#define ARM_SUPPORTED_SPEEDS 0x3EF + #endif diff --git a/arch/arm/mach-keystone/include/mach/clock-k2l.h b/arch/arm/mach-keystone/include/mach/clock-k2l.h index bb9a5c4..c145a1e 100644 --- a/arch/arm/mach-keystone/include/mach/clock-k2l.h +++ b/arch/arm/mach-keystone/include/mach/clock-k2l.h @@ -59,15 +59,6 @@ enum pll_type_e { DDR3_PLL, }; -enum { - SPD800, - SPD1000, - SPD1200, - SPD1350, - SPD1400, - SPD_RSV -}; - #define CORE_PLL_799 {CORE_PLL, 13, 1, 2} #define CORE_PLL_983 {CORE_PLL, 16, 1, 2} #define CORE_PLL_1000 {CORE_PLL, 114, 7, 2} @@ -92,4 +83,9 @@ enum { #define DDR3_PLL_800 {DDR3_PLL, 16, 1, 2} #define DDR3_PLL_333 {DDR3_PLL, 20, 1, 6} +/* k2l DEV supports 800, 1000, 1200 MHz */ +#define DEV_SUPPORTED_SPEEDS 0x383 +/* k2l ARM supportd 800, 1000, 1200, MHz */ +#define ARM_SUPPORTED_SPEEDS 0x383 + #endif diff --git a/arch/arm/mach-keystone/include/mach/clock.h b/arch/arm/mach-keystone/include/mach/clock.h index 8d4cad2..cb2b43c 100644 --- a/arch/arm/mach-keystone/include/mach/clock.h +++ b/arch/arm/mach-keystone/include/mach/clock.h @@ -32,6 +32,18 @@ #define GENERATE_INDX_STR(NUM, STRING) #NUM"\t- "#STRING"\n" #define CLOCK_INDEXES_LIST CLK_LIST(GENERATE_INDX_STR) +enum { + SPD800, + SPD850, + SPD1000, + SPD1200, + SPD1250, + SPD1350, + SPD1400, + SPD1500, + NUM_SPDS, +}; + enum clk_e { CLK_LIST(GENERATE_ENUM) }; @@ -50,9 +62,8 @@ struct pll_init_data { }; extern const struct keystone_pll_regs keystone_pll_regs[]; -extern int dev_speeds[]; -extern int arm_speeds[]; extern s16 divn_val[]; +extern int speeds[]; void init_plls(int num_pll, struct pll_init_data *config); void init_pll(const struct pll_init_data *data); diff --git a/arch/arm/mach-keystone/include/mach/hardware.h b/arch/arm/mach-keystone/include/mach/hardware.h index 6082b87..cf32ae5 100644 --- a/arch/arm/mach-keystone/include/mach/hardware.h +++ b/arch/arm/mach-keystone/include/mach/hardware.h @@ -248,6 +248,13 @@ typedef volatile unsigned int *dv_reg_p; #define CPU_66AK2Ex 0xb9a6 #define CPU_66AK2Lx 0xb9a7 +/* DEVSPEED register */ +#define DEVSPEED_DEVSPEED_SHIFT 16 +#define DEVSPEED_DEVSPEED_MASK (0xfff << 16) +#define DEVSPEED_ARMSPEED_SHIFT 0 +#define DEVSPEED_ARMSPEED_MASK 0xfff +#define DEVSPEED_NUMSPDS 12 + #ifdef CONFIG_SOC_K2HK #include <asm/arch/hardware-k2hk.h> #endif |