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ARM: keystone2: Fix dev and arm speed detection

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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>
This commit is contained in:
Lokesh Vutla 2015-07-28 14:16:44 +05:30 committed by Tom Rini
parent c321a23624
commit 7b50e1599f
12 changed files with 116 additions and 164 deletions
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16
arch/arm/mach-keystone/clock-k2e.c
View file

@ -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

32
arch/arm/mach-keystone/clock-k2hk.c
View file

@ -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

32
arch/arm/mach-keystone/clock-k2l.c
View file

@ -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

65
arch/arm/mach-keystone/clock.c
View file

@ -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)
{
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);
}
#endif
u32 armspeed = read_efuse_bootrom();
inline int get_max_dev_speed(void)
{
return get_max_speed((read_efuse_bootrom() >> 16) & 0xffff, dev_speeds);
armspeed = (armspeed & DEVSPEED_ARMSPEED_MASK) >>
DEVSPEED_ARMSPEED_SHIFT;
return get_max_speed(armspeed, ARM_SUPPORTED_SPEEDS);
}
int get_max_dev_speed(void)
{
u32 devspeed = read_efuse_bootrom();
devspeed = (devspeed & DEVSPEED_DEVSPEED_MASK) >>
DEVSPEED_DEVSPEED_SHIFT;
return get_max_speed(devspeed, DEV_SUPPORTED_SPEEDS);
}

15
arch/arm/mach-keystone/include/mach/clock-k2e.h
View file

@ -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

14
arch/arm/mach-keystone/include/mach/clock-k2hk.h
View file

@ -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

14
arch/arm/mach-keystone/include/mach/clock-k2l.h
View file

@ -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

15
arch/arm/mach-keystone/include/mach/clock.h
View file

@ -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);

7
arch/arm/mach-keystone/include/mach/hardware.h
View file

@ -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

32
board/ti/ks2_evm/board_k2e.c
View file

@ -26,14 +26,30 @@ unsigned int external_clk[ext_clk_count] = {
[usb_clk] = 100000000,
};
static struct pll_init_data core_pll_config[] = {
CORE_PLL_800,
CORE_PLL_850,
CORE_PLL_1000,
CORE_PLL_1250,
CORE_PLL_1350,
CORE_PLL_1400,
CORE_PLL_1500,
static struct pll_init_data core_pll_config[NUM_SPDS] = {
[SPD800] = CORE_PLL_800,
[SPD850] = CORE_PLL_850,
[SPD1000] = CORE_PLL_1000,
[SPD1250] = CORE_PLL_1250,
[SPD1350] = CORE_PLL_1350,
[SPD1400] = CORE_PLL_1400,
[SPD1500] = CORE_PLL_1500,
};
/* DEV and ARM speed definitions as specified in DEVSPEED register */
int speeds[DEVSPEED_NUMSPDS] = {
SPD850,
SPD1000,
SPD1250,
SPD1350,
SPD1400,
SPD1500,
SPD1400,
SPD1350,
SPD1250,
SPD1000,
SPD850,
SPD800,
};
s16 divn_val[16] = {

18
board/ti/ks2_evm/board_k2hk.c
View file

@ -29,10 +29,10 @@ unsigned int external_clk[ext_clk_count] = {
[rp1_clk] = 123456789
};
static struct pll_init_data core_pll_config[] = {
CORE_PLL_799,
CORE_PLL_999,
CORE_PLL_1200,
static struct pll_init_data core_pll_config[NUM_SPDS] = {
[SPD800] = CORE_PLL_799,
[SPD1000] = CORE_PLL_999,
[SPD1200] = CORE_PLL_1200,
};
s16 divn_val[16] = {
@ -40,11 +40,11 @@ s16 divn_val[16] = {
};
static struct pll_init_data tetris_pll_config[] = {
TETRIS_PLL_800,
TETRIS_PLL_1000,
TETRIS_PLL_1200,
TETRIS_PLL_1350,
TETRIS_PLL_1400,
[SPD800] = TETRIS_PLL_800,
[SPD1000] = TETRIS_PLL_1000,
[SPD1200] = TETRIS_PLL_1200,
[SPD1350] = TETRIS_PLL_1350,
[SPD1400] = TETRIS_PLL_1400,
};
static struct pll_init_data pa_pll_config =

18
board/ti/ks2_evm/board_k2l.c
View file

@ -25,10 +25,10 @@ unsigned int external_clk[ext_clk_count] = {
[usb_clk] = 100000000,
};
static struct pll_init_data core_pll_config[] = {
CORE_PLL_799,
CORE_PLL_1000,
CORE_PLL_1198,
static struct pll_init_data core_pll_config[NUM_SPDS] = {
[SPD800] = CORE_PLL_799,
[SPD1000] = CORE_PLL_1000,
[SPD800] = CORE_PLL_1198,
};
s16 divn_val[16] = {
@ -36,11 +36,11 @@ s16 divn_val[16] = {
};
static struct pll_init_data tetris_pll_config[] = {
TETRIS_PLL_799,
TETRIS_PLL_1000,
TETRIS_PLL_1198,
TETRIS_PLL_1352,
TETRIS_PLL_1401,
[SPD800] = TETRIS_PLL_799,
[SPD1000] = TETRIS_PLL_1000,
[SPD1200] = TETRIS_PLL_1198,
[SPD1350] = TETRIS_PLL_1352,
[SPD1400] = TETRIS_PLL_1401,
};
static struct pll_init_data pa_pll_config =