2
* Broadcom specific AMBA
3
* ChipCommon Power Management Unit driver
5
* Copyright 2009, Michael Buesch <mb@bu3sch.de>
6
* Copyright 2007, Broadcom Corporation
8
* Licensed under the GNU/GPL. See COPYING for details.
11
#include "bcma_private.h"
12
#include <linux/bcma/bcma.h>
14
static void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc,
15
u32 offset, u32 mask, u32 set)
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);
25
bcma_cc_write32(cc, BCMA_CC_CHIPCTL_DATA, value);
26
bcma_cc_read32(cc, BCMA_CC_CHIPCTL_DATA);
29
static void bcma_pmu_pll_init(struct bcma_drv_cc *cc)
31
struct bcma_bus *bus = cc->core->bus;
33
switch (bus->chipinfo.id) {
40
pr_err("PLL init unknown for device 0x%04X\n",
45
static void bcma_pmu_resources_init(struct bcma_drv_cc *cc)
47
struct bcma_bus *bus = cc->core->bus;
48
u32 min_msk = 0, max_msk = 0;
50
switch (bus->chipinfo.id) {
58
pr_err("PMU resource config unknown for device 0x%04X\n",
62
/* Set the resource masks. */
64
bcma_cc_write32(cc, BCMA_CC_PMU_MINRES_MSK, min_msk);
66
bcma_cc_write32(cc, BCMA_CC_PMU_MAXRES_MSK, max_msk);
69
void bcma_pmu_swreg_init(struct bcma_drv_cc *cc)
71
struct bcma_bus *bus = cc->core->bus;
73
switch (bus->chipinfo.id) {
79
pr_err("PMU switch/regulators init unknown for device "
80
"0x%04X\n", bus->chipinfo.id);
84
void bcma_pmu_workarounds(struct bcma_drv_cc *cc)
86
struct bcma_bus *bus = cc->core->bus;
88
switch (bus->chipinfo.id) {
90
bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x7);
93
pr_err("Enabling Ext PA lines not implemented\n");
96
if (bus->chipinfo.rev == 0) {
97
pr_err("Workarounds for 43224 rev 0 not fully "
99
bcma_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
101
bcma_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
105
pr_err("Workarounds unknown for device 0x%04X\n",
110
void bcma_pmu_init(struct bcma_drv_cc *cc)
114
pmucap = bcma_cc_read32(cc, BCMA_CC_PMU_CAP);
115
cc->pmu.rev = (pmucap & BCMA_CC_PMU_CAP_REVISION);
117
pr_debug("Found rev %u PMU (capabilities 0x%08X)\n", cc->pmu.rev,
120
if (cc->pmu.rev == 1)
121
bcma_cc_mask32(cc, BCMA_CC_PMU_CTL,
122
~BCMA_CC_PMU_CTL_NOILPONW);
124
bcma_cc_set32(cc, BCMA_CC_PMU_CTL,
125
BCMA_CC_PMU_CTL_NOILPONW);
127
if (cc->core->id.id == 0x4329 && cc->core->id.rev == 2)
128
pr_err("Fix for 4329b0 bad LPOM state not implemented!\n");
130
bcma_pmu_pll_init(cc);
131
bcma_pmu_resources_init(cc);
132
bcma_pmu_swreg_init(cc);
133
bcma_pmu_workarounds(cc);