diff options
Diffstat (limited to 'drivers/cpu/bmips_cpu.c')
| -rw-r--r-- | drivers/cpu/bmips_cpu.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/cpu/bmips_cpu.c b/drivers/cpu/bmips_cpu.c index 1eb744adcd..4ad291a56e 100644 --- a/drivers/cpu/bmips_cpu.c +++ b/drivers/cpu/bmips_cpu.c @@ -26,6 +26,10 @@ DECLARE_GLOBAL_DATA_PTR; #define REG_BCM6328_OTP 0x62c #define BCM6328_TP1_DISABLED BIT(9) +#define REG_BCM6318_STRAP_OVRDBUS 0x900 +#define OVRDBUS_6318_FREQ_SHIFT 23 +#define OVRDBUS_6318_FREQ_MASK (0x3 << OVRDBUS_6318_FREQ_SHIFT) + #define REG_BCM6328_MISC_STRAPBUS 0x1a40 #define STRAPBUS_6328_FCVO_SHIFT 7 #define STRAPBUS_6328_FCVO_MASK (0x1f << STRAPBUS_6328_FCVO_SHIFT) @@ -46,6 +50,17 @@ DECLARE_GLOBAL_DATA_PTR; #define DMIPSPLLCFG_6358_N2_SHIFT 29 #define DMIPSPLLCFG_6358_N2_MASK (0x7 << DMIPSPLLCFG_6358_N2_SHIFT) +#define REG_BCM6368_DDR_DMIPSPLLCFG 0x12a0 +#define DMIPSPLLCFG_6368_P1_SHIFT 0 +#define DMIPSPLLCFG_6368_P1_MASK (0xf << DMIPSPLLCFG_6368_P1_SHIFT) +#define DMIPSPLLCFG_6368_P2_SHIFT 4 +#define DMIPSPLLCFG_6368_P2_MASK (0xf << DMIPSPLLCFG_6368_P2_SHIFT) +#define DMIPSPLLCFG_6368_NDIV_SHIFT 16 +#define DMIPSPLLCFG_6368_NDIV_MASK (0x1ff << DMIPSPLLCFG_6368_NDIV_SHIFT) +#define REG_BCM6368_DDR_DMIPSPLLDIV 0x12a4 +#define DMIPSPLLDIV_6368_MDIV_SHIFT 0 +#define DMIPSPLLDIV_6368_MDIV_MASK (0xff << DMIPSPLLDIV_6368_MDIV_SHIFT) + #define REG_BCM63268_MISC_STRAPBUS 0x1814 #define STRAPBUS_63268_FCVO_SHIFT 21 #define STRAPBUS_63268_FCVO_MASK (0xf << STRAPBUS_63268_FCVO_SHIFT) @@ -101,6 +116,28 @@ static ulong bcm3380_get_cpu_freq(struct bmips_cpu_priv *priv) return 333000000; } +static ulong bcm6318_get_cpu_freq(struct bmips_cpu_priv *priv) +{ + unsigned int mips_pll_fcvo; + + mips_pll_fcvo = readl_be(priv->regs + REG_BCM6318_STRAP_OVRDBUS); + mips_pll_fcvo = (mips_pll_fcvo & OVRDBUS_6318_FREQ_MASK) + >> OVRDBUS_6318_FREQ_SHIFT; + + switch (mips_pll_fcvo) { + case 0: + return 166000000; + case 1: + return 400000000; + case 2: + return 250000000; + case 3: + return 333000000; + default: + return 0; + } +} + static ulong bcm6328_get_cpu_freq(struct bmips_cpu_priv *priv) { unsigned int mips_pll_fcvo; @@ -157,6 +194,22 @@ static ulong bcm6358_get_cpu_freq(struct bmips_cpu_priv *priv) return (16 * 1000000 * n1 * n2) / m1; } +static ulong bcm6368_get_cpu_freq(struct bmips_cpu_priv *priv) +{ + unsigned int tmp, p1, p2, ndiv, m1; + + tmp = readl_be(priv->regs + REG_BCM6368_DDR_DMIPSPLLCFG); + p1 = (tmp & DMIPSPLLCFG_6368_P1_MASK) >> DMIPSPLLCFG_6368_P1_SHIFT; + p2 = (tmp & DMIPSPLLCFG_6368_P2_MASK) >> DMIPSPLLCFG_6368_P2_SHIFT; + ndiv = (tmp & DMIPSPLLCFG_6368_NDIV_MASK) >> + DMIPSPLLCFG_6368_NDIV_SHIFT; + + tmp = readl_be(priv->regs + REG_BCM6368_DDR_DMIPSPLLDIV); + m1 = (tmp & DMIPSPLLDIV_6368_MDIV_MASK) >> DMIPSPLLDIV_6368_MDIV_SHIFT; + + return (((64 * 1000000) / p1) * p2 * ndiv) / m1; +} + static ulong bcm63268_get_cpu_freq(struct bmips_cpu_priv *priv) { unsigned int mips_pll_fcvo; @@ -206,6 +259,12 @@ static const struct bmips_cpu_hw bmips_cpu_bcm3380 = { .get_cpu_count = bcm6358_get_cpu_count, }; +static const struct bmips_cpu_hw bmips_cpu_bcm6318 = { + .get_cpu_desc = bmips_short_cpu_desc, + .get_cpu_freq = bcm6318_get_cpu_freq, + .get_cpu_count = bcm6345_get_cpu_count, +}; + static const struct bmips_cpu_hw bmips_cpu_bcm6328 = { .get_cpu_desc = bmips_long_cpu_desc, .get_cpu_freq = bcm6328_get_cpu_freq, @@ -230,6 +289,12 @@ static const struct bmips_cpu_hw bmips_cpu_bcm6358 = { .get_cpu_count = bcm6358_get_cpu_count, }; +static const struct bmips_cpu_hw bmips_cpu_bcm6368 = { + .get_cpu_desc = bmips_short_cpu_desc, + .get_cpu_freq = bcm6368_get_cpu_freq, + .get_cpu_count = bcm6358_get_cpu_count, +}; + static const struct bmips_cpu_hw bmips_cpu_bcm63268 = { .get_cpu_desc = bmips_long_cpu_desc, .get_cpu_freq = bcm63268_get_cpu_freq, @@ -315,6 +380,9 @@ static const struct udevice_id bmips_cpu_ids[] = { .compatible = "brcm,bcm3380-cpu", .data = (ulong)&bmips_cpu_bcm3380, }, { + .compatible = "brcm,bcm6318-cpu", + .data = (ulong)&bmips_cpu_bcm6318, + }, { .compatible = "brcm,bcm6328-cpu", .data = (ulong)&bmips_cpu_bcm6328, }, { @@ -327,6 +395,9 @@ static const struct udevice_id bmips_cpu_ids[] = { .compatible = "brcm,bcm6358-cpu", .data = (ulong)&bmips_cpu_bcm6358, }, { + .compatible = "brcm,bcm6368-cpu", + .data = (ulong)&bmips_cpu_bcm6368, + }, { .compatible = "brcm,bcm63268-cpu", .data = (ulong)&bmips_cpu_bcm63268, }, |