[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / bcma / driver_chipcommon_pmu.c

/*
 * Broadcom specific AMBA
 * ChipCommon Power Management Unit driver
 *
 * Copyright 2009, Michael Buesch <m@bues.ch>
 * Copyright 2007, Broadcom Corporation
 *
 * Licensed under the GNU/GPL. See COPYING for details.
 */

#include "bcma_private.h"
#include <linux/bcma/bcma.h>

static void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc,
					u32 offset, u32 mask, u32 set)
{
	u32 value;

	bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR);
	bcma_cc_write32(cc, BCMA_CC_CHIPCTL_ADDR, offset);
	bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR);
	value = bcma_cc_read32(cc, BCMA_CC_CHIPCTL_DATA);
	value &= mask;
	value |= set;
	bcma_cc_write32(cc, BCMA_CC_CHIPCTL_DATA, value);
	bcma_cc_read32(cc, BCMA_CC_CHIPCTL_DATA);
}

static void bcma_pmu_pll_init(struct bcma_drv_cc *cc)
{
	struct bcma_bus *bus = cc->core->bus;

	switch (bus->chipinfo.id) {
	case 0x4313:
	case 0x4331:
	case 43224:
	case 43225:
		break;
	default:
		pr_err("PLL init unknown for device 0x%04X\n",
			bus->chipinfo.id);
	}
}

static void bcma_pmu_resources_init(struct bcma_drv_cc *cc)
{
	struct bcma_bus *bus = cc->core->bus;
	u32 min_msk = 0, max_msk = 0;

	switch (bus->chipinfo.id) {
	case 0x4313:
		min_msk = 0x200D;
		max_msk = 0xFFFF;
		break;
	case 43224:
	case 43225:
		break;
	default:
		pr_err("PMU resource config unknown for device 0x%04X\n",
			bus->chipinfo.id);
	}

	/* Set the resource masks. */
	if (min_msk)
		bcma_cc_write32(cc, BCMA_CC_PMU_MINRES_MSK, min_msk);
	if (max_msk)
		bcma_cc_write32(cc, BCMA_CC_PMU_MAXRES_MSK, max_msk);
}

void bcma_pmu_swreg_init(struct bcma_drv_cc *cc)
{
	struct bcma_bus *bus = cc->core->bus;

	switch (bus->chipinfo.id) {
	case 0x4313:
	case 0x4331:
	case 43224:
	case 43225:
		break;
	default:
		pr_err("PMU switch/regulators init unknown for device "
			"0x%04X\n", bus->chipinfo.id);
	}
}

void bcma_pmu_workarounds(struct bcma_drv_cc *cc)
{
	struct bcma_bus *bus = cc->core->bus;

	switch (bus->chipinfo.id) {
	case 0x4313:
		bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x7);
		break;
	case 0x4331:
		pr_err("Enabling Ext PA lines not implemented\n");
		break;
	case 43224:
		if (bus->chipinfo.rev == 0) {
			pr_err("Workarounds for 43224 rev 0 not fully "
				"implemented\n");
			bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x00F000F0);
		} else {
			bcma_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
		}
		break;
	case 43225:
		break;
	default:
		pr_err("Workarounds unknown for device 0x%04X\n",
			bus->chipinfo.id);
	}
}

void bcma_pmu_init(struct bcma_drv_cc *cc)
{
	u32 pmucap;

	pmucap = bcma_cc_read32(cc, BCMA_CC_PMU_CAP);
	cc->pmu.rev = (pmucap & BCMA_CC_PMU_CAP_REVISION);

	pr_debug("Found rev %u PMU (capabilities 0x%08X)\n", cc->pmu.rev,
		 pmucap);

	if (cc->pmu.rev == 1)
		bcma_cc_mask32(cc, BCMA_CC_PMU_CTL,
			      ~BCMA_CC_PMU_CTL_NOILPONW);
	else
		bcma_cc_set32(cc, BCMA_CC_PMU_CTL,
			     BCMA_CC_PMU_CTL_NOILPONW);

	if (cc->core->id.id == 0x4329 && cc->core->id.rev == 2)
		pr_err("Fix for 4329b0 bad LPOM state not implemented!\n");

	bcma_pmu_pll_init(cc);
	bcma_pmu_resources_init(cc);
	bcma_pmu_swreg_init(cc);
	bcma_pmu_workarounds(cc);
}
Commit	Line	Data
8369ae33 RM	1	/*
	2	* Broadcom specific AMBA
	3	* ChipCommon Power Management Unit driver
	4	*
eb032b98	5	* Copyright 2009, Michael Buesch <m@bues.ch>
8369ae33 RM	6	* Copyright 2007, Broadcom Corporation
	7	*
	8	* Licensed under the GNU/GPL. See COPYING for details.
	9	*/
	10
	11	#include "bcma_private.h"
	12	#include <linux/bcma/bcma.h>
	13
	14	static void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc,
	15	u32 offset, u32 mask, u32 set)
	16	{
	17	u32 value;
	18
	19	bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR);
	20	bcma_cc_write32(cc, BCMA_CC_CHIPCTL_ADDR, offset);
	21	bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR);
	22	value = bcma_cc_read32(cc, BCMA_CC_CHIPCTL_DATA);
	23	value &= mask;
	24	value \|= set;
	25	bcma_cc_write32(cc, BCMA_CC_CHIPCTL_DATA, value);
	26	bcma_cc_read32(cc, BCMA_CC_CHIPCTL_DATA);
	27	}
	28
	29	static void bcma_pmu_pll_init(struct bcma_drv_cc *cc)
	30	{
	31	struct bcma_bus *bus = cc->core->bus;
	32
	33	switch (bus->chipinfo.id) {
	34	case 0x4313:
	35	case 0x4331:
	36	case 43224:
	37	case 43225:
	38	break;
	39	default:
	40	pr_err("PLL init unknown for device 0x%04X\n",
	41	bus->chipinfo.id);
	42	}
	43	}
	44
	45	static void bcma_pmu_resources_init(struct bcma_drv_cc *cc)
	46	{
	47	struct bcma_bus *bus = cc->core->bus;
	48	u32 min_msk = 0, max_msk = 0;
	49
	50	switch (bus->chipinfo.id) {
	51	case 0x4313:
	52	min_msk = 0x200D;
	53	max_msk = 0xFFFF;
	54	break;
	55	case 43224:
91fa4b0a	56	case 43225:
8369ae33 RM	57	break;
	58	default:
	59	pr_err("PMU resource config unknown for device 0x%04X\n",
	60	bus->chipinfo.id);
	61	}
	62
	63	/* Set the resource masks. */
	64	if (min_msk)
	65	bcma_cc_write32(cc, BCMA_CC_PMU_MINRES_MSK, min_msk);
	66	if (max_msk)
	67	bcma_cc_write32(cc, BCMA_CC_PMU_MAXRES_MSK, max_msk);
	68	}
	69
	70	void bcma_pmu_swreg_init(struct bcma_drv_cc *cc)
	71	{
	72	struct bcma_bus *bus = cc->core->bus;
	73
	74	switch (bus->chipinfo.id) {
	75	case 0x4313:
	76	case 0x4331:
	77	case 43224:
91fa4b0a	78	case 43225:
8369ae33 RM	79	break;
	80	default:
	81	pr_err("PMU switch/regulators init unknown for device "
	82	"0x%04X\n", bus->chipinfo.id);
	83	}
	84	}
	85
	86	void bcma_pmu_workarounds(struct bcma_drv_cc *cc)
	87	{
	88	struct bcma_bus *bus = cc->core->bus;
	89
	90	switch (bus->chipinfo.id) {
	91	case 0x4313:
	92	bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x7);
	93	break;
	94	case 0x4331:
	95	pr_err("Enabling Ext PA lines not implemented\n");
	96	break;
	97	case 43224:
	98	if (bus->chipinfo.rev == 0) {
	99	pr_err("Workarounds for 43224 rev 0 not fully "
	100	"implemented\n");
898f699e	101	bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x00F000F0);
8369ae33 RM	102	} else {
	103	bcma_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
	104	}
	105	break;
91fa4b0a RM	106	case 43225:
91fa4b0a RM	107	break;
8369ae33 RM	108	default:
	109	pr_err("Workarounds unknown for device 0x%04X\n",
	110	bus->chipinfo.id);
	111	}
	112	}
	113
	114	void bcma_pmu_init(struct bcma_drv_cc *cc)
	115	{
	116	u32 pmucap;
	117
	118	pmucap = bcma_cc_read32(cc, BCMA_CC_PMU_CAP);
	119	cc->pmu.rev = (pmucap & BCMA_CC_PMU_CAP_REVISION);
	120
	121	pr_debug("Found rev %u PMU (capabilities 0x%08X)\n", cc->pmu.rev,
	122	pmucap);
	123
	124	if (cc->pmu.rev == 1)
	125	bcma_cc_mask32(cc, BCMA_CC_PMU_CTL,
	126	~BCMA_CC_PMU_CTL_NOILPONW);
	127	else
	128	bcma_cc_set32(cc, BCMA_CC_PMU_CTL,
	129	BCMA_CC_PMU_CTL_NOILPONW);
	130
	131	if (cc->core->id.id == 0x4329 && cc->core->id.rev == 2)
	132	pr_err("Fix for 4329b0 bad LPOM state not implemented!\n");
	133
	134	bcma_pmu_pll_init(cc);
	135	bcma_pmu_resources_init(cc);
	136	bcma_pmu_swreg_init(cc);
	137	bcma_pmu_workarounds(cc);
	138	}