183d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
210e32048SÁlvaro Fernández Rojas /*
310e32048SÁlvaro Fernández Rojas * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
410e32048SÁlvaro Fernández Rojas *
510e32048SÁlvaro Fernández Rojas * Derived from linux/arch/mips/bcm63xx/cpu.c:
610e32048SÁlvaro Fernández Rojas * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
710e32048SÁlvaro Fernández Rojas * Copyright (C) 2009 Florian Fainelli <florian@openwrt.org>
810e32048SÁlvaro Fernández Rojas */
910e32048SÁlvaro Fernández Rojas
1010e32048SÁlvaro Fernández Rojas #include <common.h>
1110e32048SÁlvaro Fernández Rojas #include <cpu.h>
1210e32048SÁlvaro Fernández Rojas #include <dm.h>
1310e32048SÁlvaro Fernández Rojas #include <errno.h>
1410e32048SÁlvaro Fernández Rojas #include <asm/io.h>
1510e32048SÁlvaro Fernández Rojas
1610e32048SÁlvaro Fernández Rojas #define REV_CHIPID_SHIFT 16
1710e32048SÁlvaro Fernández Rojas #define REV_CHIPID_MASK (0xffff << REV_CHIPID_SHIFT)
1810e32048SÁlvaro Fernández Rojas #define REV_LONG_CHIPID_SHIFT 12
1910e32048SÁlvaro Fernández Rojas #define REV_LONG_CHIPID_MASK (0xfffff << REV_LONG_CHIPID_SHIFT)
2010e32048SÁlvaro Fernández Rojas #define REV_REVID_SHIFT 0
2110e32048SÁlvaro Fernández Rojas #define REV_REVID_MASK (0xff << REV_REVID_SHIFT)
2210e32048SÁlvaro Fernández Rojas
2310e32048SÁlvaro Fernández Rojas #define REG_BCM6328_OTP 0x62c
2410e32048SÁlvaro Fernández Rojas #define BCM6328_TP1_DISABLED BIT(9)
2510e32048SÁlvaro Fernández Rojas
2670d30d86SÁlvaro Fernández Rojas #define REG_BCM6318_STRAP_OVRDBUS 0x900
2770d30d86SÁlvaro Fernández Rojas #define OVRDBUS_6318_FREQ_SHIFT 23
2870d30d86SÁlvaro Fernández Rojas #define OVRDBUS_6318_FREQ_MASK (0x3 << OVRDBUS_6318_FREQ_SHIFT)
2970d30d86SÁlvaro Fernández Rojas
3010e32048SÁlvaro Fernández Rojas #define REG_BCM6328_MISC_STRAPBUS 0x1a40
3110e32048SÁlvaro Fernández Rojas #define STRAPBUS_6328_FCVO_SHIFT 7
3210e32048SÁlvaro Fernández Rojas #define STRAPBUS_6328_FCVO_MASK (0x1f << STRAPBUS_6328_FCVO_SHIFT)
3310e32048SÁlvaro Fernández Rojas
3433a99959SÁlvaro Fernández Rojas #define REG_BCM6348_PERF_MIPSPLLCFG 0x34
3533a99959SÁlvaro Fernández Rojas #define MIPSPLLCFG_6348_M1CPU_SHIFT 6
3633a99959SÁlvaro Fernández Rojas #define MIPSPLLCFG_6348_M1CPU_MASK (0x7 << MIPSPLLCFG_6348_M1CPU_SHIFT)
3733a99959SÁlvaro Fernández Rojas #define MIPSPLLCFG_6348_N2_SHIFT 15
3833a99959SÁlvaro Fernández Rojas #define MIPSPLLCFG_6348_N2_MASK (0x1F << MIPSPLLCFG_6348_N2_SHIFT)
3933a99959SÁlvaro Fernández Rojas #define MIPSPLLCFG_6348_N1_SHIFT 20
4033a99959SÁlvaro Fernández Rojas #define MIPSPLLCFG_6348_N1_MASK (0x7 << MIPSPLLCFG_6348_N1_SHIFT)
4133a99959SÁlvaro Fernández Rojas
4210e32048SÁlvaro Fernández Rojas #define REG_BCM6358_DDR_DMIPSPLLCFG 0x12b8
4310e32048SÁlvaro Fernández Rojas #define DMIPSPLLCFG_6358_M1_SHIFT 0
4410e32048SÁlvaro Fernández Rojas #define DMIPSPLLCFG_6358_M1_MASK (0xff << DMIPSPLLCFG_6358_M1_SHIFT)
4510e32048SÁlvaro Fernández Rojas #define DMIPSPLLCFG_6358_N1_SHIFT 23
4610e32048SÁlvaro Fernández Rojas #define DMIPSPLLCFG_6358_N1_MASK (0x3f << DMIPSPLLCFG_6358_N1_SHIFT)
4710e32048SÁlvaro Fernández Rojas #define DMIPSPLLCFG_6358_N2_SHIFT 29
4810e32048SÁlvaro Fernández Rojas #define DMIPSPLLCFG_6358_N2_MASK (0x7 << DMIPSPLLCFG_6358_N2_SHIFT)
4910e32048SÁlvaro Fernández Rojas
501b075ba0SÁlvaro Fernández Rojas #define REG_BCM6362_MISC_STRAPBUS 0x1814
511b075ba0SÁlvaro Fernández Rojas #define STRAPBUS_6362_FCVO_SHIFT 1
521b075ba0SÁlvaro Fernández Rojas #define STRAPBUS_6362_FCVO_MASK (0x1f << STRAPBUS_6362_FCVO_SHIFT)
531b075ba0SÁlvaro Fernández Rojas
548c8ef2e8SÁlvaro Fernández Rojas #define REG_BCM6368_DDR_DMIPSPLLCFG 0x12a0
558c8ef2e8SÁlvaro Fernández Rojas #define DMIPSPLLCFG_6368_P1_SHIFT 0
568c8ef2e8SÁlvaro Fernández Rojas #define DMIPSPLLCFG_6368_P1_MASK (0xf << DMIPSPLLCFG_6368_P1_SHIFT)
578c8ef2e8SÁlvaro Fernández Rojas #define DMIPSPLLCFG_6368_P2_SHIFT 4
588c8ef2e8SÁlvaro Fernández Rojas #define DMIPSPLLCFG_6368_P2_MASK (0xf << DMIPSPLLCFG_6368_P2_SHIFT)
598c8ef2e8SÁlvaro Fernández Rojas #define DMIPSPLLCFG_6368_NDIV_SHIFT 16
608c8ef2e8SÁlvaro Fernández Rojas #define DMIPSPLLCFG_6368_NDIV_MASK (0x1ff << DMIPSPLLCFG_6368_NDIV_SHIFT)
618c8ef2e8SÁlvaro Fernández Rojas #define REG_BCM6368_DDR_DMIPSPLLDIV 0x12a4
628c8ef2e8SÁlvaro Fernández Rojas #define DMIPSPLLDIV_6368_MDIV_SHIFT 0
638c8ef2e8SÁlvaro Fernández Rojas #define DMIPSPLLDIV_6368_MDIV_MASK (0xff << DMIPSPLLDIV_6368_MDIV_SHIFT)
648c8ef2e8SÁlvaro Fernández Rojas
6510e32048SÁlvaro Fernández Rojas #define REG_BCM63268_MISC_STRAPBUS 0x1814
6610e32048SÁlvaro Fernández Rojas #define STRAPBUS_63268_FCVO_SHIFT 21
6710e32048SÁlvaro Fernández Rojas #define STRAPBUS_63268_FCVO_MASK (0xf << STRAPBUS_63268_FCVO_SHIFT)
6810e32048SÁlvaro Fernández Rojas
69*341032d3SPhilippe Reynes #define REG_BCM6838_OTP_BRCMBITS0 0x440
70*341032d3SPhilippe Reynes #define VIPER_6838_FREQ_SHIFT 18
71*341032d3SPhilippe Reynes #define VIPER_6838_FREQ_MASK (0x7 << VIPER_6838_FREQ_SHIFT)
72*341032d3SPhilippe Reynes
7310e32048SÁlvaro Fernández Rojas struct bmips_cpu_priv;
7410e32048SÁlvaro Fernández Rojas
7510e32048SÁlvaro Fernández Rojas struct bmips_cpu_hw {
7610e32048SÁlvaro Fernández Rojas int (*get_cpu_desc)(struct bmips_cpu_priv *priv, char *buf, int size);
7710e32048SÁlvaro Fernández Rojas ulong (*get_cpu_freq)(struct bmips_cpu_priv *);
7810e32048SÁlvaro Fernández Rojas int (*get_cpu_count)(struct bmips_cpu_priv *);
7910e32048SÁlvaro Fernández Rojas };
8010e32048SÁlvaro Fernández Rojas
8110e32048SÁlvaro Fernández Rojas struct bmips_cpu_priv {
8210e32048SÁlvaro Fernández Rojas void __iomem *regs;
8310e32048SÁlvaro Fernández Rojas const struct bmips_cpu_hw *hw;
8410e32048SÁlvaro Fernández Rojas };
8510e32048SÁlvaro Fernández Rojas
8610e32048SÁlvaro Fernández Rojas /* Specific CPU Ops */
bmips_short_cpu_desc(struct bmips_cpu_priv * priv,char * buf,int size)876ffc18cdSÁlvaro Fernández Rojas static int bmips_short_cpu_desc(struct bmips_cpu_priv *priv, char *buf,
8810e32048SÁlvaro Fernández Rojas int size)
8910e32048SÁlvaro Fernández Rojas {
9010e32048SÁlvaro Fernández Rojas unsigned short cpu_id;
9110e32048SÁlvaro Fernández Rojas unsigned char cpu_rev;
9210e32048SÁlvaro Fernández Rojas u32 val;
9310e32048SÁlvaro Fernández Rojas
9410e32048SÁlvaro Fernández Rojas val = readl_be(priv->regs);
9510e32048SÁlvaro Fernández Rojas cpu_id = (val & REV_CHIPID_MASK) >> REV_CHIPID_SHIFT;
9610e32048SÁlvaro Fernández Rojas cpu_rev = (val & REV_REVID_MASK) >> REV_REVID_SHIFT;
9710e32048SÁlvaro Fernández Rojas
9810e32048SÁlvaro Fernández Rojas snprintf(buf, size, "BCM%04X%02X", cpu_id, cpu_rev);
9910e32048SÁlvaro Fernández Rojas
10010e32048SÁlvaro Fernández Rojas return 0;
10110e32048SÁlvaro Fernández Rojas }
10210e32048SÁlvaro Fernández Rojas
bmips_long_cpu_desc(struct bmips_cpu_priv * priv,char * buf,int size)1036ffc18cdSÁlvaro Fernández Rojas static int bmips_long_cpu_desc(struct bmips_cpu_priv *priv, char *buf,
10410e32048SÁlvaro Fernández Rojas int size)
10510e32048SÁlvaro Fernández Rojas {
10610e32048SÁlvaro Fernández Rojas unsigned int cpu_id;
10710e32048SÁlvaro Fernández Rojas unsigned char cpu_rev;
10810e32048SÁlvaro Fernández Rojas u32 val;
10910e32048SÁlvaro Fernández Rojas
11010e32048SÁlvaro Fernández Rojas val = readl_be(priv->regs);
11110e32048SÁlvaro Fernández Rojas cpu_id = (val & REV_LONG_CHIPID_MASK) >> REV_LONG_CHIPID_SHIFT;
11210e32048SÁlvaro Fernández Rojas cpu_rev = (val & REV_REVID_MASK) >> REV_REVID_SHIFT;
11310e32048SÁlvaro Fernández Rojas
11410e32048SÁlvaro Fernández Rojas snprintf(buf, size, "BCM%05X%02X", cpu_id, cpu_rev);
11510e32048SÁlvaro Fernández Rojas
11610e32048SÁlvaro Fernández Rojas return 0;
11710e32048SÁlvaro Fernández Rojas }
11810e32048SÁlvaro Fernández Rojas
bcm3380_get_cpu_freq(struct bmips_cpu_priv * priv)119603058f4SÁlvaro Fernández Rojas static ulong bcm3380_get_cpu_freq(struct bmips_cpu_priv *priv)
120603058f4SÁlvaro Fernández Rojas {
121603058f4SÁlvaro Fernández Rojas return 333000000;
122603058f4SÁlvaro Fernández Rojas }
123603058f4SÁlvaro Fernández Rojas
bcm6318_get_cpu_freq(struct bmips_cpu_priv * priv)12470d30d86SÁlvaro Fernández Rojas static ulong bcm6318_get_cpu_freq(struct bmips_cpu_priv *priv)
12570d30d86SÁlvaro Fernández Rojas {
12670d30d86SÁlvaro Fernández Rojas unsigned int mips_pll_fcvo;
12770d30d86SÁlvaro Fernández Rojas
12870d30d86SÁlvaro Fernández Rojas mips_pll_fcvo = readl_be(priv->regs + REG_BCM6318_STRAP_OVRDBUS);
12970d30d86SÁlvaro Fernández Rojas mips_pll_fcvo = (mips_pll_fcvo & OVRDBUS_6318_FREQ_MASK)
13070d30d86SÁlvaro Fernández Rojas >> OVRDBUS_6318_FREQ_SHIFT;
13170d30d86SÁlvaro Fernández Rojas
13270d30d86SÁlvaro Fernández Rojas switch (mips_pll_fcvo) {
13370d30d86SÁlvaro Fernández Rojas case 0:
13470d30d86SÁlvaro Fernández Rojas return 166000000;
13570d30d86SÁlvaro Fernández Rojas case 1:
13670d30d86SÁlvaro Fernández Rojas return 400000000;
13770d30d86SÁlvaro Fernández Rojas case 2:
13870d30d86SÁlvaro Fernández Rojas return 250000000;
13970d30d86SÁlvaro Fernández Rojas case 3:
14070d30d86SÁlvaro Fernández Rojas return 333000000;
14170d30d86SÁlvaro Fernández Rojas default:
14270d30d86SÁlvaro Fernández Rojas return 0;
14370d30d86SÁlvaro Fernández Rojas }
14470d30d86SÁlvaro Fernández Rojas }
14570d30d86SÁlvaro Fernández Rojas
bcm6328_get_cpu_freq(struct bmips_cpu_priv * priv)14610e32048SÁlvaro Fernández Rojas static ulong bcm6328_get_cpu_freq(struct bmips_cpu_priv *priv)
14710e32048SÁlvaro Fernández Rojas {
14810e32048SÁlvaro Fernández Rojas unsigned int mips_pll_fcvo;
14910e32048SÁlvaro Fernández Rojas
15010e32048SÁlvaro Fernández Rojas mips_pll_fcvo = readl_be(priv->regs + REG_BCM6328_MISC_STRAPBUS);
15110e32048SÁlvaro Fernández Rojas mips_pll_fcvo = (mips_pll_fcvo & STRAPBUS_6328_FCVO_MASK)
15210e32048SÁlvaro Fernández Rojas >> STRAPBUS_6328_FCVO_SHIFT;
15310e32048SÁlvaro Fernández Rojas
15410e32048SÁlvaro Fernández Rojas switch (mips_pll_fcvo) {
15510e32048SÁlvaro Fernández Rojas case 0x12:
15610e32048SÁlvaro Fernández Rojas case 0x14:
15710e32048SÁlvaro Fernández Rojas case 0x19:
15810e32048SÁlvaro Fernández Rojas return 160000000;
15910e32048SÁlvaro Fernández Rojas case 0x1c:
16010e32048SÁlvaro Fernández Rojas return 192000000;
16110e32048SÁlvaro Fernández Rojas case 0x13:
16210e32048SÁlvaro Fernández Rojas case 0x15:
16310e32048SÁlvaro Fernández Rojas return 200000000;
16410e32048SÁlvaro Fernández Rojas case 0x1a:
16510e32048SÁlvaro Fernández Rojas return 384000000;
16610e32048SÁlvaro Fernández Rojas case 0x16:
16710e32048SÁlvaro Fernández Rojas return 400000000;
16810e32048SÁlvaro Fernández Rojas default:
16910e32048SÁlvaro Fernández Rojas return 320000000;
17010e32048SÁlvaro Fernández Rojas }
17110e32048SÁlvaro Fernández Rojas }
17210e32048SÁlvaro Fernández Rojas
bcm6338_get_cpu_freq(struct bmips_cpu_priv * priv)17305fc9e68SÁlvaro Fernández Rojas static ulong bcm6338_get_cpu_freq(struct bmips_cpu_priv *priv)
17405fc9e68SÁlvaro Fernández Rojas {
17505fc9e68SÁlvaro Fernández Rojas return 240000000;
17605fc9e68SÁlvaro Fernández Rojas }
17705fc9e68SÁlvaro Fernández Rojas
bcm6348_get_cpu_freq(struct bmips_cpu_priv * priv)17833a99959SÁlvaro Fernández Rojas static ulong bcm6348_get_cpu_freq(struct bmips_cpu_priv *priv)
17933a99959SÁlvaro Fernández Rojas {
18033a99959SÁlvaro Fernández Rojas unsigned int tmp, n1, n2, m1;
18133a99959SÁlvaro Fernández Rojas
18233a99959SÁlvaro Fernández Rojas tmp = readl_be(priv->regs + REG_BCM6348_PERF_MIPSPLLCFG);
18333a99959SÁlvaro Fernández Rojas n1 = (tmp & MIPSPLLCFG_6348_N1_MASK) >> MIPSPLLCFG_6348_N1_SHIFT;
18433a99959SÁlvaro Fernández Rojas n2 = (tmp & MIPSPLLCFG_6348_N2_MASK) >> MIPSPLLCFG_6348_N2_SHIFT;
18533a99959SÁlvaro Fernández Rojas m1 = (tmp & MIPSPLLCFG_6348_M1CPU_MASK) >> MIPSPLLCFG_6348_M1CPU_SHIFT;
18633a99959SÁlvaro Fernández Rojas
18733a99959SÁlvaro Fernández Rojas return (16 * 1000000 * (n1 + 1) * (n2 + 2)) / (m1 + 1);
18833a99959SÁlvaro Fernández Rojas }
18933a99959SÁlvaro Fernández Rojas
bcm6358_get_cpu_freq(struct bmips_cpu_priv * priv)19010e32048SÁlvaro Fernández Rojas static ulong bcm6358_get_cpu_freq(struct bmips_cpu_priv *priv)
19110e32048SÁlvaro Fernández Rojas {
19210e32048SÁlvaro Fernández Rojas unsigned int tmp, n1, n2, m1;
19310e32048SÁlvaro Fernández Rojas
19410e32048SÁlvaro Fernández Rojas tmp = readl_be(priv->regs + REG_BCM6358_DDR_DMIPSPLLCFG);
19510e32048SÁlvaro Fernández Rojas n1 = (tmp & DMIPSPLLCFG_6358_N1_MASK) >> DMIPSPLLCFG_6358_N1_SHIFT;
19610e32048SÁlvaro Fernández Rojas n2 = (tmp & DMIPSPLLCFG_6358_N2_MASK) >> DMIPSPLLCFG_6358_N2_SHIFT;
19710e32048SÁlvaro Fernández Rojas m1 = (tmp & DMIPSPLLCFG_6358_M1_MASK) >> DMIPSPLLCFG_6358_M1_SHIFT;
19810e32048SÁlvaro Fernández Rojas
19910e32048SÁlvaro Fernández Rojas return (16 * 1000000 * n1 * n2) / m1;
20010e32048SÁlvaro Fernández Rojas }
20110e32048SÁlvaro Fernández Rojas
bcm6362_get_cpu_freq(struct bmips_cpu_priv * priv)2021b075ba0SÁlvaro Fernández Rojas static ulong bcm6362_get_cpu_freq(struct bmips_cpu_priv *priv)
2031b075ba0SÁlvaro Fernández Rojas {
2041b075ba0SÁlvaro Fernández Rojas unsigned int mips_pll_fcvo;
2051b075ba0SÁlvaro Fernández Rojas
2061b075ba0SÁlvaro Fernández Rojas mips_pll_fcvo = readl_be(priv->regs + REG_BCM6362_MISC_STRAPBUS);
2071b075ba0SÁlvaro Fernández Rojas mips_pll_fcvo = (mips_pll_fcvo & STRAPBUS_6362_FCVO_MASK)
2081b075ba0SÁlvaro Fernández Rojas >> STRAPBUS_6362_FCVO_SHIFT;
2091b075ba0SÁlvaro Fernández Rojas
2101b075ba0SÁlvaro Fernández Rojas switch (mips_pll_fcvo) {
2111b075ba0SÁlvaro Fernández Rojas case 0x03:
2121b075ba0SÁlvaro Fernández Rojas case 0x0b:
2131b075ba0SÁlvaro Fernández Rojas case 0x13:
2141b075ba0SÁlvaro Fernández Rojas case 0x1b:
2151b075ba0SÁlvaro Fernández Rojas return 240000000;
2161b075ba0SÁlvaro Fernández Rojas case 0x04:
2171b075ba0SÁlvaro Fernández Rojas case 0x0c:
2181b075ba0SÁlvaro Fernández Rojas case 0x14:
2191b075ba0SÁlvaro Fernández Rojas case 0x1c:
2201b075ba0SÁlvaro Fernández Rojas return 160000000;
2211b075ba0SÁlvaro Fernández Rojas case 0x05:
2221b075ba0SÁlvaro Fernández Rojas case 0x0e:
2231b075ba0SÁlvaro Fernández Rojas case 0x16:
2241b075ba0SÁlvaro Fernández Rojas case 0x1e:
2251b075ba0SÁlvaro Fernández Rojas case 0x1f:
2261b075ba0SÁlvaro Fernández Rojas return 400000000;
2271b075ba0SÁlvaro Fernández Rojas case 0x06:
2281b075ba0SÁlvaro Fernández Rojas return 440000000;
2291b075ba0SÁlvaro Fernández Rojas case 0x07:
2301b075ba0SÁlvaro Fernández Rojas case 0x17:
2311b075ba0SÁlvaro Fernández Rojas return 384000000;
2321b075ba0SÁlvaro Fernández Rojas case 0x15:
2331b075ba0SÁlvaro Fernández Rojas case 0x1d:
2341b075ba0SÁlvaro Fernández Rojas return 200000000;
2351b075ba0SÁlvaro Fernández Rojas default:
2361b075ba0SÁlvaro Fernández Rojas return 320000000;
2371b075ba0SÁlvaro Fernández Rojas }
2381b075ba0SÁlvaro Fernández Rojas }
2391b075ba0SÁlvaro Fernández Rojas
bcm6368_get_cpu_freq(struct bmips_cpu_priv * priv)2408c8ef2e8SÁlvaro Fernández Rojas static ulong bcm6368_get_cpu_freq(struct bmips_cpu_priv *priv)
2418c8ef2e8SÁlvaro Fernández Rojas {
2428c8ef2e8SÁlvaro Fernández Rojas unsigned int tmp, p1, p2, ndiv, m1;
2438c8ef2e8SÁlvaro Fernández Rojas
2448c8ef2e8SÁlvaro Fernández Rojas tmp = readl_be(priv->regs + REG_BCM6368_DDR_DMIPSPLLCFG);
2458c8ef2e8SÁlvaro Fernández Rojas p1 = (tmp & DMIPSPLLCFG_6368_P1_MASK) >> DMIPSPLLCFG_6368_P1_SHIFT;
2468c8ef2e8SÁlvaro Fernández Rojas p2 = (tmp & DMIPSPLLCFG_6368_P2_MASK) >> DMIPSPLLCFG_6368_P2_SHIFT;
2478c8ef2e8SÁlvaro Fernández Rojas ndiv = (tmp & DMIPSPLLCFG_6368_NDIV_MASK) >>
2488c8ef2e8SÁlvaro Fernández Rojas DMIPSPLLCFG_6368_NDIV_SHIFT;
2498c8ef2e8SÁlvaro Fernández Rojas
2508c8ef2e8SÁlvaro Fernández Rojas tmp = readl_be(priv->regs + REG_BCM6368_DDR_DMIPSPLLDIV);
2518c8ef2e8SÁlvaro Fernández Rojas m1 = (tmp & DMIPSPLLDIV_6368_MDIV_MASK) >> DMIPSPLLDIV_6368_MDIV_SHIFT;
2528c8ef2e8SÁlvaro Fernández Rojas
2538c8ef2e8SÁlvaro Fernández Rojas return (((64 * 1000000) / p1) * p2 * ndiv) / m1;
2548c8ef2e8SÁlvaro Fernández Rojas }
2558c8ef2e8SÁlvaro Fernández Rojas
bcm63268_get_cpu_freq(struct bmips_cpu_priv * priv)25610e32048SÁlvaro Fernández Rojas static ulong bcm63268_get_cpu_freq(struct bmips_cpu_priv *priv)
25710e32048SÁlvaro Fernández Rojas {
25810e32048SÁlvaro Fernández Rojas unsigned int mips_pll_fcvo;
25910e32048SÁlvaro Fernández Rojas
26010e32048SÁlvaro Fernández Rojas mips_pll_fcvo = readl_be(priv->regs + REG_BCM63268_MISC_STRAPBUS);
26110e32048SÁlvaro Fernández Rojas mips_pll_fcvo = (mips_pll_fcvo & STRAPBUS_63268_FCVO_MASK)
26210e32048SÁlvaro Fernández Rojas >> STRAPBUS_63268_FCVO_SHIFT;
26310e32048SÁlvaro Fernández Rojas
26410e32048SÁlvaro Fernández Rojas switch (mips_pll_fcvo) {
26510e32048SÁlvaro Fernández Rojas case 0x3:
26610e32048SÁlvaro Fernández Rojas case 0xe:
26710e32048SÁlvaro Fernández Rojas return 320000000;
26810e32048SÁlvaro Fernández Rojas case 0xa:
26910e32048SÁlvaro Fernández Rojas return 333000000;
27010e32048SÁlvaro Fernández Rojas case 0x2:
27110e32048SÁlvaro Fernández Rojas case 0xb:
27210e32048SÁlvaro Fernández Rojas case 0xf:
27310e32048SÁlvaro Fernández Rojas return 400000000;
27410e32048SÁlvaro Fernández Rojas default:
27510e32048SÁlvaro Fernández Rojas return 0;
27610e32048SÁlvaro Fernández Rojas }
27710e32048SÁlvaro Fernández Rojas }
27810e32048SÁlvaro Fernández Rojas
bcm6838_get_cpu_freq(struct bmips_cpu_priv * priv)279*341032d3SPhilippe Reynes static ulong bcm6838_get_cpu_freq(struct bmips_cpu_priv *priv)
280*341032d3SPhilippe Reynes {
281*341032d3SPhilippe Reynes unsigned int mips_viper_freq;
282*341032d3SPhilippe Reynes
283*341032d3SPhilippe Reynes mips_viper_freq = readl_be(priv->regs + REG_BCM6838_OTP_BRCMBITS0);
284*341032d3SPhilippe Reynes mips_viper_freq = (mips_viper_freq & VIPER_6838_FREQ_MASK)
285*341032d3SPhilippe Reynes >> VIPER_6838_FREQ_SHIFT;
286*341032d3SPhilippe Reynes
287*341032d3SPhilippe Reynes switch (mips_viper_freq) {
288*341032d3SPhilippe Reynes case 0x0:
289*341032d3SPhilippe Reynes return 600000000;
290*341032d3SPhilippe Reynes case 0x1:
291*341032d3SPhilippe Reynes return 400000000;
292*341032d3SPhilippe Reynes case 0x2:
293*341032d3SPhilippe Reynes return 240000000;
294*341032d3SPhilippe Reynes default:
295*341032d3SPhilippe Reynes return 0;
296*341032d3SPhilippe Reynes }
297*341032d3SPhilippe Reynes }
298*341032d3SPhilippe Reynes
bcm6328_get_cpu_count(struct bmips_cpu_priv * priv)29910e32048SÁlvaro Fernández Rojas static int bcm6328_get_cpu_count(struct bmips_cpu_priv *priv)
30010e32048SÁlvaro Fernández Rojas {
30110e32048SÁlvaro Fernández Rojas u32 val = readl_be(priv->regs + REG_BCM6328_OTP);
30210e32048SÁlvaro Fernández Rojas
30310e32048SÁlvaro Fernández Rojas if (val & BCM6328_TP1_DISABLED)
30410e32048SÁlvaro Fernández Rojas return 1;
30510e32048SÁlvaro Fernández Rojas else
30610e32048SÁlvaro Fernández Rojas return 2;
30710e32048SÁlvaro Fernández Rojas }
30810e32048SÁlvaro Fernández Rojas
bcm6345_get_cpu_count(struct bmips_cpu_priv * priv)30933a99959SÁlvaro Fernández Rojas static int bcm6345_get_cpu_count(struct bmips_cpu_priv *priv)
31033a99959SÁlvaro Fernández Rojas {
31133a99959SÁlvaro Fernández Rojas return 1;
31233a99959SÁlvaro Fernández Rojas }
31333a99959SÁlvaro Fernández Rojas
bcm6358_get_cpu_count(struct bmips_cpu_priv * priv)31410e32048SÁlvaro Fernández Rojas static int bcm6358_get_cpu_count(struct bmips_cpu_priv *priv)
31510e32048SÁlvaro Fernández Rojas {
31610e32048SÁlvaro Fernández Rojas return 2;
31710e32048SÁlvaro Fernández Rojas }
31810e32048SÁlvaro Fernández Rojas
319603058f4SÁlvaro Fernández Rojas static const struct bmips_cpu_hw bmips_cpu_bcm3380 = {
320603058f4SÁlvaro Fernández Rojas .get_cpu_desc = bmips_short_cpu_desc,
321603058f4SÁlvaro Fernández Rojas .get_cpu_freq = bcm3380_get_cpu_freq,
322603058f4SÁlvaro Fernández Rojas .get_cpu_count = bcm6358_get_cpu_count,
323603058f4SÁlvaro Fernández Rojas };
324603058f4SÁlvaro Fernández Rojas
32570d30d86SÁlvaro Fernández Rojas static const struct bmips_cpu_hw bmips_cpu_bcm6318 = {
32670d30d86SÁlvaro Fernández Rojas .get_cpu_desc = bmips_short_cpu_desc,
32770d30d86SÁlvaro Fernández Rojas .get_cpu_freq = bcm6318_get_cpu_freq,
32870d30d86SÁlvaro Fernández Rojas .get_cpu_count = bcm6345_get_cpu_count,
32970d30d86SÁlvaro Fernández Rojas };
33070d30d86SÁlvaro Fernández Rojas
33110e32048SÁlvaro Fernández Rojas static const struct bmips_cpu_hw bmips_cpu_bcm6328 = {
3326ffc18cdSÁlvaro Fernández Rojas .get_cpu_desc = bmips_long_cpu_desc,
33310e32048SÁlvaro Fernández Rojas .get_cpu_freq = bcm6328_get_cpu_freq,
33410e32048SÁlvaro Fernández Rojas .get_cpu_count = bcm6328_get_cpu_count,
33510e32048SÁlvaro Fernández Rojas };
33610e32048SÁlvaro Fernández Rojas
33705fc9e68SÁlvaro Fernández Rojas static const struct bmips_cpu_hw bmips_cpu_bcm6338 = {
33805fc9e68SÁlvaro Fernández Rojas .get_cpu_desc = bmips_short_cpu_desc,
33905fc9e68SÁlvaro Fernández Rojas .get_cpu_freq = bcm6338_get_cpu_freq,
34005fc9e68SÁlvaro Fernández Rojas .get_cpu_count = bcm6345_get_cpu_count,
34105fc9e68SÁlvaro Fernández Rojas };
34205fc9e68SÁlvaro Fernández Rojas
34333a99959SÁlvaro Fernández Rojas static const struct bmips_cpu_hw bmips_cpu_bcm6348 = {
34433a99959SÁlvaro Fernández Rojas .get_cpu_desc = bmips_short_cpu_desc,
34533a99959SÁlvaro Fernández Rojas .get_cpu_freq = bcm6348_get_cpu_freq,
34633a99959SÁlvaro Fernández Rojas .get_cpu_count = bcm6345_get_cpu_count,
34733a99959SÁlvaro Fernández Rojas };
34833a99959SÁlvaro Fernández Rojas
34910e32048SÁlvaro Fernández Rojas static const struct bmips_cpu_hw bmips_cpu_bcm6358 = {
3506ffc18cdSÁlvaro Fernández Rojas .get_cpu_desc = bmips_short_cpu_desc,
35110e32048SÁlvaro Fernández Rojas .get_cpu_freq = bcm6358_get_cpu_freq,
35210e32048SÁlvaro Fernández Rojas .get_cpu_count = bcm6358_get_cpu_count,
35310e32048SÁlvaro Fernández Rojas };
35410e32048SÁlvaro Fernández Rojas
3551b075ba0SÁlvaro Fernández Rojas static const struct bmips_cpu_hw bmips_cpu_bcm6362 = {
3561b075ba0SÁlvaro Fernández Rojas .get_cpu_desc = bmips_short_cpu_desc,
3571b075ba0SÁlvaro Fernández Rojas .get_cpu_freq = bcm6362_get_cpu_freq,
3581b075ba0SÁlvaro Fernández Rojas .get_cpu_count = bcm6358_get_cpu_count,
3591b075ba0SÁlvaro Fernández Rojas };
3601b075ba0SÁlvaro Fernández Rojas
3618c8ef2e8SÁlvaro Fernández Rojas static const struct bmips_cpu_hw bmips_cpu_bcm6368 = {
3628c8ef2e8SÁlvaro Fernández Rojas .get_cpu_desc = bmips_short_cpu_desc,
3638c8ef2e8SÁlvaro Fernández Rojas .get_cpu_freq = bcm6368_get_cpu_freq,
3648c8ef2e8SÁlvaro Fernández Rojas .get_cpu_count = bcm6358_get_cpu_count,
3658c8ef2e8SÁlvaro Fernández Rojas };
3668c8ef2e8SÁlvaro Fernández Rojas
36710e32048SÁlvaro Fernández Rojas static const struct bmips_cpu_hw bmips_cpu_bcm63268 = {
3686ffc18cdSÁlvaro Fernández Rojas .get_cpu_desc = bmips_long_cpu_desc,
36910e32048SÁlvaro Fernández Rojas .get_cpu_freq = bcm63268_get_cpu_freq,
37010e32048SÁlvaro Fernández Rojas .get_cpu_count = bcm6358_get_cpu_count,
37110e32048SÁlvaro Fernández Rojas };
37210e32048SÁlvaro Fernández Rojas
373*341032d3SPhilippe Reynes static const struct bmips_cpu_hw bmips_cpu_bcm6838 = {
374*341032d3SPhilippe Reynes .get_cpu_desc = bmips_short_cpu_desc,
375*341032d3SPhilippe Reynes .get_cpu_freq = bcm6838_get_cpu_freq,
376*341032d3SPhilippe Reynes .get_cpu_count = bcm6358_get_cpu_count,
377*341032d3SPhilippe Reynes };
378*341032d3SPhilippe Reynes
37910e32048SÁlvaro Fernández Rojas /* Generic CPU Ops */
bmips_cpu_get_desc(struct udevice * dev,char * buf,int size)38010e32048SÁlvaro Fernández Rojas static int bmips_cpu_get_desc(struct udevice *dev, char *buf, int size)
38110e32048SÁlvaro Fernández Rojas {
38210e32048SÁlvaro Fernández Rojas struct bmips_cpu_priv *priv = dev_get_priv(dev);
38310e32048SÁlvaro Fernández Rojas const struct bmips_cpu_hw *hw = priv->hw;
38410e32048SÁlvaro Fernández Rojas
38510e32048SÁlvaro Fernández Rojas return hw->get_cpu_desc(priv, buf, size);
38610e32048SÁlvaro Fernández Rojas }
38710e32048SÁlvaro Fernández Rojas
bmips_cpu_get_info(struct udevice * dev,struct cpu_info * info)38810e32048SÁlvaro Fernández Rojas static int bmips_cpu_get_info(struct udevice *dev, struct cpu_info *info)
38910e32048SÁlvaro Fernández Rojas {
39010e32048SÁlvaro Fernández Rojas struct bmips_cpu_priv *priv = dev_get_priv(dev);
39110e32048SÁlvaro Fernández Rojas const struct bmips_cpu_hw *hw = priv->hw;
39210e32048SÁlvaro Fernández Rojas
39310e32048SÁlvaro Fernández Rojas info->cpu_freq = hw->get_cpu_freq(priv);
39410e32048SÁlvaro Fernández Rojas info->features = BIT(CPU_FEAT_L1_CACHE);
39510e32048SÁlvaro Fernández Rojas info->features |= BIT(CPU_FEAT_MMU);
39610e32048SÁlvaro Fernández Rojas info->features |= BIT(CPU_FEAT_DEVICE_ID);
39710e32048SÁlvaro Fernández Rojas
39810e32048SÁlvaro Fernández Rojas return 0;
39910e32048SÁlvaro Fernández Rojas }
40010e32048SÁlvaro Fernández Rojas
bmips_cpu_get_count(struct udevice * dev)40110e32048SÁlvaro Fernández Rojas static int bmips_cpu_get_count(struct udevice *dev)
40210e32048SÁlvaro Fernández Rojas {
40310e32048SÁlvaro Fernández Rojas struct bmips_cpu_priv *priv = dev_get_priv(dev);
40410e32048SÁlvaro Fernández Rojas const struct bmips_cpu_hw *hw = priv->hw;
40510e32048SÁlvaro Fernández Rojas
40610e32048SÁlvaro Fernández Rojas return hw->get_cpu_count(priv);
40710e32048SÁlvaro Fernández Rojas }
40810e32048SÁlvaro Fernández Rojas
bmips_cpu_get_vendor(struct udevice * dev,char * buf,int size)40910e32048SÁlvaro Fernández Rojas static int bmips_cpu_get_vendor(struct udevice *dev, char *buf, int size)
41010e32048SÁlvaro Fernández Rojas {
41110e32048SÁlvaro Fernández Rojas snprintf(buf, size, "Broadcom");
41210e32048SÁlvaro Fernández Rojas
41310e32048SÁlvaro Fernández Rojas return 0;
41410e32048SÁlvaro Fernández Rojas }
41510e32048SÁlvaro Fernández Rojas
41610e32048SÁlvaro Fernández Rojas static const struct cpu_ops bmips_cpu_ops = {
41710e32048SÁlvaro Fernández Rojas .get_desc = bmips_cpu_get_desc,
41810e32048SÁlvaro Fernández Rojas .get_info = bmips_cpu_get_info,
41910e32048SÁlvaro Fernández Rojas .get_count = bmips_cpu_get_count,
42010e32048SÁlvaro Fernández Rojas .get_vendor = bmips_cpu_get_vendor,
42110e32048SÁlvaro Fernández Rojas };
42210e32048SÁlvaro Fernández Rojas
42310e32048SÁlvaro Fernández Rojas /* BMIPS CPU driver */
bmips_cpu_bind(struct udevice * dev)42410e32048SÁlvaro Fernández Rojas int bmips_cpu_bind(struct udevice *dev)
42510e32048SÁlvaro Fernández Rojas {
42610e32048SÁlvaro Fernández Rojas struct cpu_platdata *plat = dev_get_parent_platdata(dev);
42710e32048SÁlvaro Fernández Rojas
428c444afbbSÁlvaro Fernández Rojas plat->cpu_id = dev_read_u32_default(dev, "reg", -1);
42910e32048SÁlvaro Fernández Rojas plat->device_id = read_c0_prid();
43010e32048SÁlvaro Fernández Rojas
43110e32048SÁlvaro Fernández Rojas return 0;
43210e32048SÁlvaro Fernández Rojas }
43310e32048SÁlvaro Fernández Rojas
bmips_cpu_probe(struct udevice * dev)43410e32048SÁlvaro Fernández Rojas int bmips_cpu_probe(struct udevice *dev)
43510e32048SÁlvaro Fernández Rojas {
43610e32048SÁlvaro Fernández Rojas struct bmips_cpu_priv *priv = dev_get_priv(dev);
43710e32048SÁlvaro Fernández Rojas const struct bmips_cpu_hw *hw =
43810e32048SÁlvaro Fernández Rojas (const struct bmips_cpu_hw *)dev_get_driver_data(dev);
43910e32048SÁlvaro Fernández Rojas
440cef1f0c7SPhilippe Reynes priv->regs = dev_remap_addr(dev_get_parent(dev));
441c444afbbSÁlvaro Fernández Rojas if (!priv->regs)
44210e32048SÁlvaro Fernández Rojas return -EINVAL;
44310e32048SÁlvaro Fernández Rojas
44410e32048SÁlvaro Fernández Rojas priv->hw = hw;
44510e32048SÁlvaro Fernández Rojas
44610e32048SÁlvaro Fernández Rojas return 0;
44710e32048SÁlvaro Fernández Rojas }
44810e32048SÁlvaro Fernández Rojas
44910e32048SÁlvaro Fernández Rojas static const struct udevice_id bmips_cpu_ids[] = {
45010e32048SÁlvaro Fernández Rojas {
451603058f4SÁlvaro Fernández Rojas .compatible = "brcm,bcm3380-cpu",
452603058f4SÁlvaro Fernández Rojas .data = (ulong)&bmips_cpu_bcm3380,
453603058f4SÁlvaro Fernández Rojas }, {
45470d30d86SÁlvaro Fernández Rojas .compatible = "brcm,bcm6318-cpu",
45570d30d86SÁlvaro Fernández Rojas .data = (ulong)&bmips_cpu_bcm6318,
45670d30d86SÁlvaro Fernández Rojas }, {
45710e32048SÁlvaro Fernández Rojas .compatible = "brcm,bcm6328-cpu",
45810e32048SÁlvaro Fernández Rojas .data = (ulong)&bmips_cpu_bcm6328,
45910e32048SÁlvaro Fernández Rojas }, {
46005fc9e68SÁlvaro Fernández Rojas .compatible = "brcm,bcm6338-cpu",
46105fc9e68SÁlvaro Fernández Rojas .data = (ulong)&bmips_cpu_bcm6338,
46205fc9e68SÁlvaro Fernández Rojas }, {
46333a99959SÁlvaro Fernández Rojas .compatible = "brcm,bcm6348-cpu",
46433a99959SÁlvaro Fernández Rojas .data = (ulong)&bmips_cpu_bcm6348,
46533a99959SÁlvaro Fernández Rojas }, {
46610e32048SÁlvaro Fernández Rojas .compatible = "brcm,bcm6358-cpu",
46710e32048SÁlvaro Fernández Rojas .data = (ulong)&bmips_cpu_bcm6358,
46810e32048SÁlvaro Fernández Rojas }, {
4691b075ba0SÁlvaro Fernández Rojas .compatible = "brcm,bcm6362-cpu",
4701b075ba0SÁlvaro Fernández Rojas .data = (ulong)&bmips_cpu_bcm6362,
4711b075ba0SÁlvaro Fernández Rojas }, {
4728c8ef2e8SÁlvaro Fernández Rojas .compatible = "brcm,bcm6368-cpu",
4738c8ef2e8SÁlvaro Fernández Rojas .data = (ulong)&bmips_cpu_bcm6368,
4748c8ef2e8SÁlvaro Fernández Rojas }, {
47510e32048SÁlvaro Fernández Rojas .compatible = "brcm,bcm63268-cpu",
47610e32048SÁlvaro Fernández Rojas .data = (ulong)&bmips_cpu_bcm63268,
477*341032d3SPhilippe Reynes }, {
478*341032d3SPhilippe Reynes .compatible = "brcm,bcm6838-cpu",
479*341032d3SPhilippe Reynes .data = (ulong)&bmips_cpu_bcm6838,
48010e32048SÁlvaro Fernández Rojas },
48110e32048SÁlvaro Fernández Rojas { /* sentinel */ }
48210e32048SÁlvaro Fernández Rojas };
48310e32048SÁlvaro Fernández Rojas
48410e32048SÁlvaro Fernández Rojas U_BOOT_DRIVER(bmips_cpu_drv) = {
48510e32048SÁlvaro Fernández Rojas .name = "bmips_cpu",
48610e32048SÁlvaro Fernández Rojas .id = UCLASS_CPU,
48710e32048SÁlvaro Fernández Rojas .of_match = bmips_cpu_ids,
48810e32048SÁlvaro Fernández Rojas .bind = bmips_cpu_bind,
48910e32048SÁlvaro Fernández Rojas .probe = bmips_cpu_probe,
49010e32048SÁlvaro Fernández Rojas .priv_auto_alloc_size = sizeof(struct bmips_cpu_priv),
49110e32048SÁlvaro Fernández Rojas .ops = &bmips_cpu_ops,
49210e32048SÁlvaro Fernández Rojas .flags = DM_FLAG_PRE_RELOC,
49310e32048SÁlvaro Fernández Rojas };
49410e32048SÁlvaro Fernández Rojas
49510e32048SÁlvaro Fernández Rojas #ifdef CONFIG_DISPLAY_CPUINFO
print_cpuinfo(void)49610e32048SÁlvaro Fernández Rojas int print_cpuinfo(void)
49710e32048SÁlvaro Fernández Rojas {
49810e32048SÁlvaro Fernández Rojas struct cpu_info cpu;
49910e32048SÁlvaro Fernández Rojas struct udevice *dev;
50010e32048SÁlvaro Fernández Rojas int err;
50110e32048SÁlvaro Fernández Rojas char desc[100];
50210e32048SÁlvaro Fernández Rojas
50310e32048SÁlvaro Fernández Rojas err = uclass_get_device(UCLASS_CPU, 0, &dev);
50410e32048SÁlvaro Fernández Rojas if (err)
50510e32048SÁlvaro Fernández Rojas return 0;
50610e32048SÁlvaro Fernández Rojas
50710e32048SÁlvaro Fernández Rojas err = cpu_get_info(dev, &cpu);
50810e32048SÁlvaro Fernández Rojas if (err)
50910e32048SÁlvaro Fernández Rojas return 0;
51010e32048SÁlvaro Fernández Rojas
51110e32048SÁlvaro Fernández Rojas err = cpu_get_desc(dev, desc, sizeof(desc));
51210e32048SÁlvaro Fernández Rojas if (err)
51310e32048SÁlvaro Fernández Rojas return 0;
51410e32048SÁlvaro Fernández Rojas
51510e32048SÁlvaro Fernández Rojas printf("Chip ID: %s, MIPS: ", desc);
51610e32048SÁlvaro Fernández Rojas print_freq(cpu.cpu_freq, "\n");
51710e32048SÁlvaro Fernández Rojas
51810e32048SÁlvaro Fernández Rojas return 0;
51910e32048SÁlvaro Fernández Rojas }
52010e32048SÁlvaro Fernández Rojas #endif
521