[J-u-boot.git] / drivers / cpu / bmips_cpu.c

/*
 * Copyright (C) 2017 Álvaro Fernández Rojas <[email protected]>
 *
 * Derived from linux/arch/mips/bcm63xx/cpu.c:
 *	Copyright (C) 2008 Maxime Bizon <[email protected]>
 *	Copyright (C) 2009 Florian Fainelli <[email protected]>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <cpu.h>
#include <dm.h>
#include <errno.h>
#include <asm/io.h>

DECLARE_GLOBAL_DATA_PTR;

#define REV_CHIPID_SHIFT		16
#define REV_CHIPID_MASK			(0xffff << REV_CHIPID_SHIFT)
#define REV_LONG_CHIPID_SHIFT		12
#define REV_LONG_CHIPID_MASK		(0xfffff << REV_LONG_CHIPID_SHIFT)
#define REV_REVID_SHIFT			0
#define REV_REVID_MASK			(0xff << REV_REVID_SHIFT)

#define REG_BCM6328_OTP			0x62c
#define BCM6328_TP1_DISABLED		BIT(9)

#define REG_BCM6328_MISC_STRAPBUS	0x1a40
#define STRAPBUS_6328_FCVO_SHIFT	7
#define STRAPBUS_6328_FCVO_MASK		(0x1f << STRAPBUS_6328_FCVO_SHIFT)

#define REG_BCM6348_PERF_MIPSPLLCFG	0x34
#define MIPSPLLCFG_6348_M1CPU_SHIFT	6
#define MIPSPLLCFG_6348_M1CPU_MASK	(0x7 << MIPSPLLCFG_6348_M1CPU_SHIFT)
#define MIPSPLLCFG_6348_N2_SHIFT	15
#define MIPSPLLCFG_6348_N2_MASK		(0x1F << MIPSPLLCFG_6348_N2_SHIFT)
#define MIPSPLLCFG_6348_N1_SHIFT	20
#define MIPSPLLCFG_6348_N1_MASK		(0x7 << MIPSPLLCFG_6348_N1_SHIFT)

#define REG_BCM6358_DDR_DMIPSPLLCFG	0x12b8
#define DMIPSPLLCFG_6358_M1_SHIFT	0
#define DMIPSPLLCFG_6358_M1_MASK	(0xff << DMIPSPLLCFG_6358_M1_SHIFT)
#define DMIPSPLLCFG_6358_N1_SHIFT	23
#define DMIPSPLLCFG_6358_N1_MASK	(0x3f << DMIPSPLLCFG_6358_N1_SHIFT)
#define DMIPSPLLCFG_6358_N2_SHIFT	29
#define DMIPSPLLCFG_6358_N2_MASK	(0x7 << DMIPSPLLCFG_6358_N2_SHIFT)

#define REG_BCM63268_MISC_STRAPBUS	0x1814
#define STRAPBUS_63268_FCVO_SHIFT	21
#define STRAPBUS_63268_FCVO_MASK	(0xf << STRAPBUS_63268_FCVO_SHIFT)

struct bmips_cpu_priv;

struct bmips_cpu_hw {
	int (*get_cpu_desc)(struct bmips_cpu_priv *priv, char *buf, int size);
	ulong (*get_cpu_freq)(struct bmips_cpu_priv *);
	int (*get_cpu_count)(struct bmips_cpu_priv *);
};

struct bmips_cpu_priv {
	void __iomem *regs;
	const struct bmips_cpu_hw *hw;
};

/* Specific CPU Ops */
static int bmips_short_cpu_desc(struct bmips_cpu_priv *priv, char *buf,
				int size)
{
	unsigned short cpu_id;
	unsigned char cpu_rev;
	u32 val;

	val = readl_be(priv->regs);
	cpu_id = (val & REV_CHIPID_MASK) >> REV_CHIPID_SHIFT;
	cpu_rev = (val & REV_REVID_MASK) >> REV_REVID_SHIFT;

	snprintf(buf, size, "BCM%04X%02X", cpu_id, cpu_rev);

	return 0;
}

static int bmips_long_cpu_desc(struct bmips_cpu_priv *priv, char *buf,
				int size)
{
	unsigned int cpu_id;
	unsigned char cpu_rev;
	u32 val;

	val = readl_be(priv->regs);
	cpu_id = (val & REV_LONG_CHIPID_MASK) >> REV_LONG_CHIPID_SHIFT;
	cpu_rev = (val & REV_REVID_MASK) >> REV_REVID_SHIFT;

	snprintf(buf, size, "BCM%05X%02X", cpu_id, cpu_rev);

	return 0;
}

static ulong bcm3380_get_cpu_freq(struct bmips_cpu_priv *priv)
{
	return 333000000;
}

static ulong bcm6328_get_cpu_freq(struct bmips_cpu_priv *priv)
{
	unsigned int mips_pll_fcvo;

	mips_pll_fcvo = readl_be(priv->regs + REG_BCM6328_MISC_STRAPBUS);
	mips_pll_fcvo = (mips_pll_fcvo & STRAPBUS_6328_FCVO_MASK)
			>> STRAPBUS_6328_FCVO_SHIFT;

	switch (mips_pll_fcvo) {
	case 0x12:
	case 0x14:
	case 0x19:
		return 160000000;
	case 0x1c:
		return 192000000;
	case 0x13:
	case 0x15:
		return 200000000;
	case 0x1a:
		return 384000000;
	case 0x16:
		return 400000000;
	default:
		return 320000000;
	}
}

static ulong bcm6338_get_cpu_freq(struct bmips_cpu_priv *priv)
{
	return 240000000;
}

static ulong bcm6348_get_cpu_freq(struct bmips_cpu_priv *priv)
{
	unsigned int tmp, n1, n2, m1;

	tmp = readl_be(priv->regs + REG_BCM6348_PERF_MIPSPLLCFG);
	n1 = (tmp & MIPSPLLCFG_6348_N1_MASK) >> MIPSPLLCFG_6348_N1_SHIFT;
	n2 = (tmp & MIPSPLLCFG_6348_N2_MASK) >> MIPSPLLCFG_6348_N2_SHIFT;
	m1 = (tmp & MIPSPLLCFG_6348_M1CPU_MASK) >> MIPSPLLCFG_6348_M1CPU_SHIFT;

	return (16 * 1000000 * (n1 + 1) * (n2 + 2)) / (m1 + 1);
}

static ulong bcm6358_get_cpu_freq(struct bmips_cpu_priv *priv)
{
	unsigned int tmp, n1, n2, m1;

	tmp = readl_be(priv->regs + REG_BCM6358_DDR_DMIPSPLLCFG);
	n1 = (tmp & DMIPSPLLCFG_6358_N1_MASK) >> DMIPSPLLCFG_6358_N1_SHIFT;
	n2 = (tmp & DMIPSPLLCFG_6358_N2_MASK) >> DMIPSPLLCFG_6358_N2_SHIFT;
	m1 = (tmp & DMIPSPLLCFG_6358_M1_MASK) >> DMIPSPLLCFG_6358_M1_SHIFT;

	return (16 * 1000000 * n1 * n2) / m1;
}

static ulong bcm63268_get_cpu_freq(struct bmips_cpu_priv *priv)
{
	unsigned int mips_pll_fcvo;

	mips_pll_fcvo = readl_be(priv->regs + REG_BCM63268_MISC_STRAPBUS);
	mips_pll_fcvo = (mips_pll_fcvo & STRAPBUS_63268_FCVO_MASK)
			>> STRAPBUS_63268_FCVO_SHIFT;

	switch (mips_pll_fcvo) {
	case 0x3:
	case 0xe:
		return 320000000;
	case 0xa:
		return 333000000;
	case 0x2:
	case 0xb:
	case 0xf:
		return 400000000;
	default:
		return 0;
	}
}

static int bcm6328_get_cpu_count(struct bmips_cpu_priv *priv)
{
	u32 val = readl_be(priv->regs + REG_BCM6328_OTP);

	if (val & BCM6328_TP1_DISABLED)
		return 1;
	else
		return 2;
}

static int bcm6345_get_cpu_count(struct bmips_cpu_priv *priv)
{
	return 1;
}

static int bcm6358_get_cpu_count(struct bmips_cpu_priv *priv)
{
	return 2;
}

static const struct bmips_cpu_hw bmips_cpu_bcm3380 = {
	.get_cpu_desc = bmips_short_cpu_desc,
	.get_cpu_freq = bcm3380_get_cpu_freq,
	.get_cpu_count = bcm6358_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,
	.get_cpu_count = bcm6328_get_cpu_count,
};

static const struct bmips_cpu_hw bmips_cpu_bcm6338 = {
	.get_cpu_desc = bmips_short_cpu_desc,
	.get_cpu_freq = bcm6338_get_cpu_freq,
	.get_cpu_count = bcm6345_get_cpu_count,
};

static const struct bmips_cpu_hw bmips_cpu_bcm6348 = {
	.get_cpu_desc = bmips_short_cpu_desc,
	.get_cpu_freq = bcm6348_get_cpu_freq,
	.get_cpu_count = bcm6345_get_cpu_count,
};

static const struct bmips_cpu_hw bmips_cpu_bcm6358 = {
	.get_cpu_desc = bmips_short_cpu_desc,
	.get_cpu_freq = bcm6358_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,
	.get_cpu_count = bcm6358_get_cpu_count,
};

/* Generic CPU Ops */
static int bmips_cpu_get_desc(struct udevice *dev, char *buf, int size)
{
	struct bmips_cpu_priv *priv = dev_get_priv(dev);
	const struct bmips_cpu_hw *hw = priv->hw;

	return hw->get_cpu_desc(priv, buf, size);
}

static int bmips_cpu_get_info(struct udevice *dev, struct cpu_info *info)
{
	struct bmips_cpu_priv *priv = dev_get_priv(dev);
	const struct bmips_cpu_hw *hw = priv->hw;

	info->cpu_freq = hw->get_cpu_freq(priv);
	info->features = BIT(CPU_FEAT_L1_CACHE);
	info->features |= BIT(CPU_FEAT_MMU);
	info->features |= BIT(CPU_FEAT_DEVICE_ID);

	return 0;
}

static int bmips_cpu_get_count(struct udevice *dev)
{
	struct bmips_cpu_priv *priv = dev_get_priv(dev);
	const struct bmips_cpu_hw *hw = priv->hw;

	return hw->get_cpu_count(priv);
}

static int bmips_cpu_get_vendor(struct udevice *dev, char *buf, int size)
{
	snprintf(buf, size, "Broadcom");

	return 0;
}

static const struct cpu_ops bmips_cpu_ops = {
	.get_desc = bmips_cpu_get_desc,
	.get_info = bmips_cpu_get_info,
	.get_count = bmips_cpu_get_count,
	.get_vendor = bmips_cpu_get_vendor,
};

/* BMIPS CPU driver */
int bmips_cpu_bind(struct udevice *dev)
{
	struct cpu_platdata *plat = dev_get_parent_platdata(dev);

	plat->cpu_id = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
		"reg", -1);
	plat->device_id = read_c0_prid();

	return 0;
}

int bmips_cpu_probe(struct udevice *dev)
{
	struct bmips_cpu_priv *priv = dev_get_priv(dev);
	const struct bmips_cpu_hw *hw =
		(const struct bmips_cpu_hw *)dev_get_driver_data(dev);
	fdt_addr_t addr;
	fdt_size_t size;

	addr = devfdt_get_addr_size_index(dev_get_parent(dev), 0, &size);
	if (addr == FDT_ADDR_T_NONE)
		return -EINVAL;

	priv->regs = ioremap(addr, size);
	priv->hw = hw;

	return 0;
}

static const struct udevice_id bmips_cpu_ids[] = {
	{
		.compatible = "brcm,bcm3380-cpu",
		.data = (ulong)&bmips_cpu_bcm3380,
	}, {
		.compatible = "brcm,bcm6328-cpu",
		.data = (ulong)&bmips_cpu_bcm6328,
	}, {
		.compatible = "brcm,bcm6338-cpu",
		.data = (ulong)&bmips_cpu_bcm6338,
	}, {
		.compatible = "brcm,bcm6348-cpu",
		.data = (ulong)&bmips_cpu_bcm6348,
	}, {
		.compatible = "brcm,bcm6358-cpu",
		.data = (ulong)&bmips_cpu_bcm6358,
	}, {
		.compatible = "brcm,bcm63268-cpu",
		.data = (ulong)&bmips_cpu_bcm63268,
	},
	{ /* sentinel */ }
};

U_BOOT_DRIVER(bmips_cpu_drv) = {
	.name = "bmips_cpu",
	.id = UCLASS_CPU,
	.of_match = bmips_cpu_ids,
	.bind = bmips_cpu_bind,
	.probe = bmips_cpu_probe,
	.priv_auto_alloc_size = sizeof(struct bmips_cpu_priv),
	.ops = &bmips_cpu_ops,
	.flags = DM_FLAG_PRE_RELOC,
};

#ifdef CONFIG_DISPLAY_CPUINFO
int print_cpuinfo(void)
{
	struct cpu_info cpu;
	struct udevice *dev;
	int err;
	char desc[100];

	err = uclass_get_device(UCLASS_CPU, 0, &dev);
	if (err)
		return 0;

	err = cpu_get_info(dev, &cpu);
	if (err)
		return 0;

	err = cpu_get_desc(dev, desc, sizeof(desc));
	if (err)
		return 0;

	printf("Chip ID: %s, MIPS: ", desc);
	print_freq(cpu.cpu_freq, "\n");

	return 0;
}
#endif
Commit	Line	Data
10e32048 ÁFR	1	/*
	2	* Copyright (C) 2017 Álvaro Fernández Rojas <[email protected]>
	3	*
	4	* Derived from linux/arch/mips/bcm63xx/cpu.c:
	5	* Copyright (C) 2008 Maxime Bizon <[email protected]>
	6	* Copyright (C) 2009 Florian Fainelli <[email protected]>
	7	*
	8	* SPDX-License-Identifier: GPL-2.0+
	9	*/
	10
	11	#include <common.h>
	12	#include <cpu.h>
	13	#include <dm.h>
	14	#include <errno.h>
	15	#include <asm/io.h>
	16
	17	DECLARE_GLOBAL_DATA_PTR;
	18
	19	#define REV_CHIPID_SHIFT 16
	20	#define REV_CHIPID_MASK (0xffff << REV_CHIPID_SHIFT)
	21	#define REV_LONG_CHIPID_SHIFT 12
	22	#define REV_LONG_CHIPID_MASK (0xfffff << REV_LONG_CHIPID_SHIFT)
	23	#define REV_REVID_SHIFT 0
	24	#define REV_REVID_MASK (0xff << REV_REVID_SHIFT)
	25
	26	#define REG_BCM6328_OTP 0x62c
	27	#define BCM6328_TP1_DISABLED BIT(9)
	28
	29	#define REG_BCM6328_MISC_STRAPBUS 0x1a40
	30	#define STRAPBUS_6328_FCVO_SHIFT 7
	31	#define STRAPBUS_6328_FCVO_MASK (0x1f << STRAPBUS_6328_FCVO_SHIFT)
	32
33a99959 ÁFR	33	#define REG_BCM6348_PERF_MIPSPLLCFG 0x34
	34	#define MIPSPLLCFG_6348_M1CPU_SHIFT 6
	35	#define MIPSPLLCFG_6348_M1CPU_MASK (0x7 << MIPSPLLCFG_6348_M1CPU_SHIFT)
	36	#define MIPSPLLCFG_6348_N2_SHIFT 15
	37	#define MIPSPLLCFG_6348_N2_MASK (0x1F << MIPSPLLCFG_6348_N2_SHIFT)
	38	#define MIPSPLLCFG_6348_N1_SHIFT 20
	39	#define MIPSPLLCFG_6348_N1_MASK (0x7 << MIPSPLLCFG_6348_N1_SHIFT)
	40
10e32048 ÁFR	41	#define REG_BCM6358_DDR_DMIPSPLLCFG 0x12b8
	42	#define DMIPSPLLCFG_6358_M1_SHIFT 0
	43	#define DMIPSPLLCFG_6358_M1_MASK (0xff << DMIPSPLLCFG_6358_M1_SHIFT)
	44	#define DMIPSPLLCFG_6358_N1_SHIFT 23
	45	#define DMIPSPLLCFG_6358_N1_MASK (0x3f << DMIPSPLLCFG_6358_N1_SHIFT)
	46	#define DMIPSPLLCFG_6358_N2_SHIFT 29
	47	#define DMIPSPLLCFG_6358_N2_MASK (0x7 << DMIPSPLLCFG_6358_N2_SHIFT)
	48
	49	#define REG_BCM63268_MISC_STRAPBUS 0x1814
	50	#define STRAPBUS_63268_FCVO_SHIFT 21
	51	#define STRAPBUS_63268_FCVO_MASK (0xf << STRAPBUS_63268_FCVO_SHIFT)
	52
	53	struct bmips_cpu_priv;
	54
	55	struct bmips_cpu_hw {
	56	int (get_cpu_desc)(struct bmips_cpu_priv priv, char *buf, int size);
	57	ulong (get_cpu_freq)(struct bmips_cpu_priv );
	58	int (get_cpu_count)(struct bmips_cpu_priv );
	59	};
	60
	61	struct bmips_cpu_priv {
	62	void __iomem *regs;
	63	const struct bmips_cpu_hw *hw;
	64	};
	65
	66	/* Specific CPU Ops */
6ffc18cd	67	static int bmips_short_cpu_desc(struct bmips_cpu_priv priv, char buf,
10e32048 ÁFR	68	int size)
	69	{
	70	unsigned short cpu_id;
	71	unsigned char cpu_rev;
	72	u32 val;
	73
	74	val = readl_be(priv->regs);
	75	cpu_id = (val & REV_CHIPID_MASK) >> REV_CHIPID_SHIFT;
	76	cpu_rev = (val & REV_REVID_MASK) >> REV_REVID_SHIFT;
	77
	78	snprintf(buf, size, "BCM%04X%02X", cpu_id, cpu_rev);
	79
	80	return 0;
	81	}
	82
6ffc18cd	83	static int bmips_long_cpu_desc(struct bmips_cpu_priv priv, char buf,
10e32048 ÁFR	84	int size)
	85	{
	86	unsigned int cpu_id;
	87	unsigned char cpu_rev;
	88	u32 val;
	89
	90	val = readl_be(priv->regs);
	91	cpu_id = (val & REV_LONG_CHIPID_MASK) >> REV_LONG_CHIPID_SHIFT;
	92	cpu_rev = (val & REV_REVID_MASK) >> REV_REVID_SHIFT;
	93
	94	snprintf(buf, size, "BCM%05X%02X", cpu_id, cpu_rev);
	95
	96	return 0;
	97	}
	98
603058f4 ÁFR	99	static ulong bcm3380_get_cpu_freq(struct bmips_cpu_priv *priv)
	100	{
	101	return 333000000;
	102	}
	103
10e32048 ÁFR	104	static ulong bcm6328_get_cpu_freq(struct bmips_cpu_priv *priv)
	105	{
	106	unsigned int mips_pll_fcvo;
	107
	108	mips_pll_fcvo = readl_be(priv->regs + REG_BCM6328_MISC_STRAPBUS);
	109	mips_pll_fcvo = (mips_pll_fcvo & STRAPBUS_6328_FCVO_MASK)
	110	>> STRAPBUS_6328_FCVO_SHIFT;
	111
	112	switch (mips_pll_fcvo) {
	113	case 0x12:
	114	case 0x14:
	115	case 0x19:
	116	return 160000000;
	117	case 0x1c:
	118	return 192000000;
	119	case 0x13:
	120	case 0x15:
	121	return 200000000;
	122	case 0x1a:
	123	return 384000000;
	124	case 0x16:
	125	return 400000000;
	126	default:
	127	return 320000000;
	128	}
	129	}
	130
05fc9e68 ÁFR	131	static ulong bcm6338_get_cpu_freq(struct bmips_cpu_priv *priv)
	132	{
	133	return 240000000;
	134	}
	135
33a99959 ÁFR	136	static ulong bcm6348_get_cpu_freq(struct bmips_cpu_priv *priv)
	137	{
	138	unsigned int tmp, n1, n2, m1;
	139
	140	tmp = readl_be(priv->regs + REG_BCM6348_PERF_MIPSPLLCFG);
	141	n1 = (tmp & MIPSPLLCFG_6348_N1_MASK) >> MIPSPLLCFG_6348_N1_SHIFT;
	142	n2 = (tmp & MIPSPLLCFG_6348_N2_MASK) >> MIPSPLLCFG_6348_N2_SHIFT;
	143	m1 = (tmp & MIPSPLLCFG_6348_M1CPU_MASK) >> MIPSPLLCFG_6348_M1CPU_SHIFT;
	144
	145	return (16 * 1000000 * (n1 + 1) * (n2 + 2)) / (m1 + 1);
	146	}
	147
10e32048 ÁFR	148	static ulong bcm6358_get_cpu_freq(struct bmips_cpu_priv *priv)
	149	{
	150	unsigned int tmp, n1, n2, m1;
	151
	152	tmp = readl_be(priv->regs + REG_BCM6358_DDR_DMIPSPLLCFG);
	153	n1 = (tmp & DMIPSPLLCFG_6358_N1_MASK) >> DMIPSPLLCFG_6358_N1_SHIFT;
	154	n2 = (tmp & DMIPSPLLCFG_6358_N2_MASK) >> DMIPSPLLCFG_6358_N2_SHIFT;
	155	m1 = (tmp & DMIPSPLLCFG_6358_M1_MASK) >> DMIPSPLLCFG_6358_M1_SHIFT;
	156
	157	return (16 * 1000000 * n1 * n2) / m1;
	158	}
	159
	160	static ulong bcm63268_get_cpu_freq(struct bmips_cpu_priv *priv)
	161	{
	162	unsigned int mips_pll_fcvo;
	163
	164	mips_pll_fcvo = readl_be(priv->regs + REG_BCM63268_MISC_STRAPBUS);
	165	mips_pll_fcvo = (mips_pll_fcvo & STRAPBUS_63268_FCVO_MASK)
	166	>> STRAPBUS_63268_FCVO_SHIFT;
	167
	168	switch (mips_pll_fcvo) {
	169	case 0x3:
	170	case 0xe:
	171	return 320000000;
	172	case 0xa:
	173	return 333000000;
	174	case 0x2:
	175	case 0xb:
	176	case 0xf:
	177	return 400000000;
	178	default:
	179	return 0;
	180	}
	181	}
	182
	183	static int bcm6328_get_cpu_count(struct bmips_cpu_priv *priv)
	184	{
	185	u32 val = readl_be(priv->regs + REG_BCM6328_OTP);
	186
	187	if (val & BCM6328_TP1_DISABLED)
	188	return 1;
	189	else
	190	return 2;
	191	}
	192
33a99959 ÁFR	193	static int bcm6345_get_cpu_count(struct bmips_cpu_priv *priv)
	194	{
	195	return 1;
	196	}
	197
10e32048 ÁFR	198	static int bcm6358_get_cpu_count(struct bmips_cpu_priv *priv)
	199	{
	200	return 2;
	201	}
	202
603058f4 ÁFR	203	static const struct bmips_cpu_hw bmips_cpu_bcm3380 = {
	204	.get_cpu_desc = bmips_short_cpu_desc,
	205	.get_cpu_freq = bcm3380_get_cpu_freq,
	206	.get_cpu_count = bcm6358_get_cpu_count,
	207	};
	208
10e32048	209	static const struct bmips_cpu_hw bmips_cpu_bcm6328 = {
6ffc18cd	210	.get_cpu_desc = bmips_long_cpu_desc,
10e32048 ÁFR	211	.get_cpu_freq = bcm6328_get_cpu_freq,
	212	.get_cpu_count = bcm6328_get_cpu_count,
	213	};
	214
05fc9e68 ÁFR	215	static const struct bmips_cpu_hw bmips_cpu_bcm6338 = {
	216	.get_cpu_desc = bmips_short_cpu_desc,
	217	.get_cpu_freq = bcm6338_get_cpu_freq,
	218	.get_cpu_count = bcm6345_get_cpu_count,
	219	};
	220
33a99959 ÁFR	221	static const struct bmips_cpu_hw bmips_cpu_bcm6348 = {
	222	.get_cpu_desc = bmips_short_cpu_desc,
	223	.get_cpu_freq = bcm6348_get_cpu_freq,
	224	.get_cpu_count = bcm6345_get_cpu_count,
	225	};
	226
10e32048	227	static const struct bmips_cpu_hw bmips_cpu_bcm6358 = {
6ffc18cd	228	.get_cpu_desc = bmips_short_cpu_desc,
10e32048 ÁFR	229	.get_cpu_freq = bcm6358_get_cpu_freq,
	230	.get_cpu_count = bcm6358_get_cpu_count,
	231	};
	232
	233	static const struct bmips_cpu_hw bmips_cpu_bcm63268 = {
6ffc18cd	234	.get_cpu_desc = bmips_long_cpu_desc,
10e32048 ÁFR	235	.get_cpu_freq = bcm63268_get_cpu_freq,
	236	.get_cpu_count = bcm6358_get_cpu_count,
	237	};
	238
	239	/* Generic CPU Ops */
	240	static int bmips_cpu_get_desc(struct udevice dev, char buf, int size)
	241	{
	242	struct bmips_cpu_priv *priv = dev_get_priv(dev);
	243	const struct bmips_cpu_hw *hw = priv->hw;
	244
	245	return hw->get_cpu_desc(priv, buf, size);
	246	}
	247
	248	static int bmips_cpu_get_info(struct udevice dev, struct cpu_info info)
	249	{
	250	struct bmips_cpu_priv *priv = dev_get_priv(dev);
	251	const struct bmips_cpu_hw *hw = priv->hw;
	252
	253	info->cpu_freq = hw->get_cpu_freq(priv);
	254	info->features = BIT(CPU_FEAT_L1_CACHE);
	255	info->features \|= BIT(CPU_FEAT_MMU);
	256	info->features \|= BIT(CPU_FEAT_DEVICE_ID);
	257
	258	return 0;
	259	}
	260
	261	static int bmips_cpu_get_count(struct udevice *dev)
	262	{
	263	struct bmips_cpu_priv *priv = dev_get_priv(dev);
	264	const struct bmips_cpu_hw *hw = priv->hw;
	265
	266	return hw->get_cpu_count(priv);
	267	}
	268
	269	static int bmips_cpu_get_vendor(struct udevice dev, char buf, int size)
	270	{
	271	snprintf(buf, size, "Broadcom");
	272
	273	return 0;
	274	}
	275
	276	static const struct cpu_ops bmips_cpu_ops = {
	277	.get_desc = bmips_cpu_get_desc,
	278	.get_info = bmips_cpu_get_info,
	279	.get_count = bmips_cpu_get_count,
	280	.get_vendor = bmips_cpu_get_vendor,
	281	};
	282
	283	/* BMIPS CPU driver */
	284	int bmips_cpu_bind(struct udevice *dev)
	285	{
	286	struct cpu_platdata *plat = dev_get_parent_platdata(dev);
	287
	288	plat->cpu_id = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
	289	"reg", -1);
	290	plat->device_id = read_c0_prid();
	291
	292	return 0;
	293	}
	294
	295	int bmips_cpu_probe(struct udevice *dev)
	296	{
	297	struct bmips_cpu_priv *priv = dev_get_priv(dev);
	298	const struct bmips_cpu_hw *hw =
299	(const struct bmips_cpu_hw *)dev_get_driver_data(dev);
300	fdt_addr_t addr;
301	fdt_size_t size;
302
a821c4af	303	addr = devfdt_get_addr_size_index(dev_get_parent(dev), 0, &size);
10e32048 ÁFR	304	if (addr == FDT_ADDR_T_NONE)
	305	return -EINVAL;
	306
	307	priv->regs = ioremap(addr, size);
	308	priv->hw = hw;
	309
	310	return 0;
	311	}
	312
	313	static const struct udevice_id bmips_cpu_ids[] = {
	314	{
603058f4 ÁFR	315	.compatible = "brcm,bcm3380-cpu",
	316	.data = (ulong)&bmips_cpu_bcm3380,
	317	}, {
10e32048 ÁFR	318	.compatible = "brcm,bcm6328-cpu",
10e32048 ÁFR	319	.data = (ulong)&bmips_cpu_bcm6328,
05fc9e68 ÁFR	320	}, {
	321	.compatible = "brcm,bcm6338-cpu",
	322	.data = (ulong)&bmips_cpu_bcm6338,
33a99959 ÁFR	323	}, {
	324	.compatible = "brcm,bcm6348-cpu",
	325	.data = (ulong)&bmips_cpu_bcm6348,
10e32048 ÁFR	326	}, {
	327	.compatible = "brcm,bcm6358-cpu",
	328	.data = (ulong)&bmips_cpu_bcm6358,
	329	}, {
	330	.compatible = "brcm,bcm63268-cpu",
	331	.data = (ulong)&bmips_cpu_bcm63268,
	332	},
	333	{ /* sentinel */ }
	334	};
	335
	336	U_BOOT_DRIVER(bmips_cpu_drv) = {
	337	.name = "bmips_cpu",
	338	.id = UCLASS_CPU,
	339	.of_match = bmips_cpu_ids,
	340	.bind = bmips_cpu_bind,
	341	.probe = bmips_cpu_probe,
	342	.priv_auto_alloc_size = sizeof(struct bmips_cpu_priv),
	343	.ops = &bmips_cpu_ops,
	344	.flags = DM_FLAG_PRE_RELOC,
	345	};
	346
	347	#ifdef CONFIG_DISPLAY_CPUINFO
	348	int print_cpuinfo(void)
	349	{
	350	struct cpu_info cpu;
	351	struct udevice *dev;
	352	int err;
	353	char desc[100];
	354
	355	err = uclass_get_device(UCLASS_CPU, 0, &dev);
	356	if (err)
	357	return 0;
	358
	359	err = cpu_get_info(dev, &cpu);
	360	if (err)
	361	return 0;
	362
	363	err = cpu_get_desc(dev, desc, sizeof(desc));
	364	if (err)
	365	return 0;
	366
	367	printf("Chip ID: %s, MIPS: ", desc);
	368	print_freq(cpu.cpu_freq, "\n");
	369
	370	return 0;
	371	}
	372	#endif