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alistair23-linux/arch/powerpc/platforms/powermac/feature.c
Benjamin Herrenschmidt 592a607bbc [POWERPC] Disable G5 NAP mode during SMU commands on U3 
It appears that with the U3 northbridge, if the processor is in NAP
mode the whole time while waiting for an SMU command to complete,
then the SMU will fail.  It could be related to the weird backward
mechanism the SMU uses to get to system memory via i2c to the
northbridge that doesn't operate properly when the said bridge is
in napping along with the CPU.  That is on U3 at least, U4 doesn't
seem to be affected.

This didn't show before NO_HZ as the timer wakeup was enough to make
it work it seems, but that is no longer the case.

This fixes it by disabling NAP mode on those machines while
an SMU command is in flight.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-02-08 19:52:35 +11:00

3041 lines
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/*
* Copyright (C) 1996-2001 Paul Mackerras (paulus@cs.anu.edu.au)
* Ben. Herrenschmidt (benh@kernel.crashing.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* TODO:
*
* - Replace mdelay with some schedule loop if possible
* - Shorten some obfuscated delays on some routines (like modem
* power)
* - Refcount some clocks (see darwin)
* - Split split split...
*
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/adb.h>
#include <linux/pmu.h>
#include <linux/ioport.h>
#include <linux/pci.h>
#include <asm/sections.h>
#include <asm/errno.h>
#include <asm/ohare.h>
#include <asm/heathrow.h>
#include <asm/keylargo.h>
#include <asm/uninorth.h>
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/pmac_feature.h>
#include <asm/dbdma.h>
#include <asm/pci-bridge.h>
#include <asm/pmac_low_i2c.h>
#undef DEBUG_FEATURE
#ifdef DEBUG_FEATURE
#define DBG(fmt...) printk(KERN_DEBUG fmt)
#else
#define DBG(fmt...)
#endif
#ifdef CONFIG_6xx
extern int powersave_lowspeed;
#endif
extern int powersave_nap;
extern struct device_node *k2_skiplist[2];
/*
* We use a single global lock to protect accesses. Each driver has
* to take care of its own locking
*/
DEFINE_SPINLOCK(feature_lock);
#define LOCK(flags) spin_lock_irqsave(&feature_lock, flags);
#define UNLOCK(flags) spin_unlock_irqrestore(&feature_lock, flags);
/*
* Instance of some macio stuffs
*/
struct macio_chip macio_chips[MAX_MACIO_CHIPS];
struct macio_chip *macio_find(struct device_node *child, int type)
{
while(child) {
int i;
for (i=0; i < MAX_MACIO_CHIPS && macio_chips[i].of_node; i++)
if (child == macio_chips[i].of_node &&
(!type || macio_chips[i].type == type))
return &macio_chips[i];
child = child->parent;
}
return NULL;
}
EXPORT_SYMBOL_GPL(macio_find);
static const char *macio_names[] =
{
"Unknown",
"Grand Central",
"OHare",
"OHareII",
"Heathrow",
"Gatwick",
"Paddington",
"Keylargo",
"Pangea",
"Intrepid",
"K2",
"Shasta",
};
struct device_node *uninorth_node;
u32 __iomem *uninorth_base;
static u32 uninorth_rev;
static int uninorth_maj;
static void __iomem *u3_ht_base;
/*
* For each motherboard family, we have a table of functions pointers
* that handle the various features.
*/
typedef long (*feature_call)(struct device_node *node, long param, long value);
struct feature_table_entry {
unsigned int selector;
feature_call function;
};
struct pmac_mb_def
{
const char* model_string;
const char* model_name;
int model_id;
struct feature_table_entry* features;
unsigned long board_flags;
};
static struct pmac_mb_def pmac_mb;
/*
* Here are the chip specific feature functions
*/
static inline int simple_feature_tweak(struct device_node *node, int type,
int reg, u32 mask, int value)
{
struct macio_chip* macio;
unsigned long flags;
macio = macio_find(node, type);
if (!macio)
return -ENODEV;
LOCK(flags);
if (value)
MACIO_BIS(reg, mask);
else
MACIO_BIC(reg, mask);
(void)MACIO_IN32(reg);
UNLOCK(flags);
return 0;
}
#ifndef CONFIG_POWER4
static long ohare_htw_scc_enable(struct device_node *node, long param,
long value)
{
struct macio_chip* macio;
unsigned long chan_mask;
unsigned long fcr;
unsigned long flags;
int htw, trans;
unsigned long rmask;
macio = macio_find(node, 0);
if (!macio)
return -ENODEV;
if (!strcmp(node->name, "ch-a"))
chan_mask = MACIO_FLAG_SCCA_ON;
else if (!strcmp(node->name, "ch-b"))
chan_mask = MACIO_FLAG_SCCB_ON;
else
return -ENODEV;
htw = (macio->type == macio_heathrow || macio->type == macio_paddington
|| macio->type == macio_gatwick);
/* On these machines, the HRW_SCC_TRANS_EN_N bit mustn't be touched */
trans = (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
pmac_mb.model_id != PMAC_TYPE_YIKES);
if (value) {
#ifdef CONFIG_ADB_PMU
if ((param & 0xfff) == PMAC_SCC_IRDA)
pmu_enable_irled(1);
#endif /* CONFIG_ADB_PMU */
LOCK(flags);
fcr = MACIO_IN32(OHARE_FCR);
/* Check if scc cell need enabling */
if (!(fcr & OH_SCC_ENABLE)) {
fcr |= OH_SCC_ENABLE;
if (htw) {
/* Side effect: this will also power up the
* modem, but it's too messy to figure out on which
* ports this controls the tranceiver and on which
* it controls the modem
*/
if (trans)
fcr &= ~HRW_SCC_TRANS_EN_N;
MACIO_OUT32(OHARE_FCR, fcr);
fcr |= (rmask = HRW_RESET_SCC);
MACIO_OUT32(OHARE_FCR, fcr);
} else {
fcr |= (rmask = OH_SCC_RESET);
MACIO_OUT32(OHARE_FCR, fcr);
}
UNLOCK(flags);
(void)MACIO_IN32(OHARE_FCR);
mdelay(15);
LOCK(flags);
fcr &= ~rmask;
MACIO_OUT32(OHARE_FCR, fcr);
}
if (chan_mask & MACIO_FLAG_SCCA_ON)
fcr |= OH_SCCA_IO;
if (chan_mask & MACIO_FLAG_SCCB_ON)
fcr |= OH_SCCB_IO;
MACIO_OUT32(OHARE_FCR, fcr);
macio->flags |= chan_mask;
UNLOCK(flags);
if (param & PMAC_SCC_FLAG_XMON)
macio->flags |= MACIO_FLAG_SCC_LOCKED;
} else {
if (macio->flags & MACIO_FLAG_SCC_LOCKED)
return -EPERM;
LOCK(flags);
fcr = MACIO_IN32(OHARE_FCR);
if (chan_mask & MACIO_FLAG_SCCA_ON)
fcr &= ~OH_SCCA_IO;
if (chan_mask & MACIO_FLAG_SCCB_ON)
fcr &= ~OH_SCCB_IO;
MACIO_OUT32(OHARE_FCR, fcr);
if ((fcr & (OH_SCCA_IO | OH_SCCB_IO)) == 0) {
fcr &= ~OH_SCC_ENABLE;
if (htw && trans)
fcr |= HRW_SCC_TRANS_EN_N;
MACIO_OUT32(OHARE_FCR, fcr);
}
macio->flags &= ~(chan_mask);
UNLOCK(flags);
mdelay(10);
#ifdef CONFIG_ADB_PMU
if ((param & 0xfff) == PMAC_SCC_IRDA)
pmu_enable_irled(0);
#endif /* CONFIG_ADB_PMU */
}
return 0;
}
static long ohare_floppy_enable(struct device_node *node, long param,
long value)
{
return simple_feature_tweak(node, macio_ohare,
OHARE_FCR, OH_FLOPPY_ENABLE, value);
}
static long ohare_mesh_enable(struct device_node *node, long param, long value)
{
return simple_feature_tweak(node, macio_ohare,
OHARE_FCR, OH_MESH_ENABLE, value);
}
static long ohare_ide_enable(struct device_node *node, long param, long value)
{
switch(param) {
case 0:
/* For some reason, setting the bit in set_initial_features()
* doesn't stick. I'm still investigating... --BenH.
*/
if (value)
simple_feature_tweak(node, macio_ohare,
OHARE_FCR, OH_IOBUS_ENABLE, 1);
return simple_feature_tweak(node, macio_ohare,
OHARE_FCR, OH_IDE0_ENABLE, value);
case 1:
return simple_feature_tweak(node, macio_ohare,
OHARE_FCR, OH_BAY_IDE_ENABLE, value);
default:
return -ENODEV;
}
}
static long ohare_ide_reset(struct device_node *node, long param, long value)
{
switch(param) {
case 0:
return simple_feature_tweak(node, macio_ohare,
OHARE_FCR, OH_IDE0_RESET_N, !value);
case 1:
return simple_feature_tweak(node, macio_ohare,
OHARE_FCR, OH_IDE1_RESET_N, !value);
default:
return -ENODEV;
}
}
static long ohare_sleep_state(struct device_node *node, long param, long value)
{
struct macio_chip* macio = &macio_chips[0];
if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
return -EPERM;
if (value == 1) {
MACIO_BIC(OHARE_FCR, OH_IOBUS_ENABLE);
} else if (value == 0) {
MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
}
return 0;
}
static long heathrow_modem_enable(struct device_node *node, long param,
long value)
{
struct macio_chip* macio;
u8 gpio;
unsigned long flags;
macio = macio_find(node, macio_unknown);
if (!macio)
return -ENODEV;
gpio = MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1;
if (!value) {
LOCK(flags);
MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
UNLOCK(flags);
(void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
mdelay(250);
}
if (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
pmac_mb.model_id != PMAC_TYPE_YIKES) {
LOCK(flags);
if (value)
MACIO_BIC(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
else
MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
UNLOCK(flags);
(void)MACIO_IN32(HEATHROW_FCR);
mdelay(250);
}
if (value) {
LOCK(flags);
MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
(void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
UNLOCK(flags); mdelay(250); LOCK(flags);
MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
(void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
UNLOCK(flags); mdelay(250); LOCK(flags);
MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
(void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
UNLOCK(flags); mdelay(250);
}
return 0;
}
static long heathrow_floppy_enable(struct device_node *node, long param,
long value)
{
return simple_feature_tweak(node, macio_unknown,
HEATHROW_FCR,
HRW_SWIM_ENABLE|HRW_BAY_FLOPPY_ENABLE,
value);
}
static long heathrow_mesh_enable(struct device_node *node, long param,
long value)
{
struct macio_chip* macio;
unsigned long flags;
macio = macio_find(node, macio_unknown);
if (!macio)
return -ENODEV;
LOCK(flags);
/* Set clear mesh cell enable */
if (value)
MACIO_BIS(HEATHROW_FCR, HRW_MESH_ENABLE);
else
MACIO_BIC(HEATHROW_FCR, HRW_MESH_ENABLE);
(void)MACIO_IN32(HEATHROW_FCR);
udelay(10);
/* Set/Clear termination power */
if (value)
MACIO_BIC(HEATHROW_MBCR, 0x04000000);
else
MACIO_BIS(HEATHROW_MBCR, 0x04000000);
(void)MACIO_IN32(HEATHROW_MBCR);
udelay(10);
UNLOCK(flags);
return 0;
}
static long heathrow_ide_enable(struct device_node *node, long param,
long value)
{
switch(param) {
case 0:
return simple_feature_tweak(node, macio_unknown,
HEATHROW_FCR, HRW_IDE0_ENABLE, value);
case 1:
return simple_feature_tweak(node, macio_unknown,
HEATHROW_FCR, HRW_BAY_IDE_ENABLE, value);
default:
return -ENODEV;
}
}
static long heathrow_ide_reset(struct device_node *node, long param,
long value)
{
switch(param) {
case 0:
return simple_feature_tweak(node, macio_unknown,
HEATHROW_FCR, HRW_IDE0_RESET_N, !value);
case 1:
return simple_feature_tweak(node, macio_unknown,
HEATHROW_FCR, HRW_IDE1_RESET_N, !value);
default:
return -ENODEV;
}
}
static long heathrow_bmac_enable(struct device_node *node, long param,
long value)
{
struct macio_chip* macio;
unsigned long flags;
macio = macio_find(node, 0);
if (!macio)
return -ENODEV;
if (value) {
LOCK(flags);
MACIO_BIS(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
MACIO_BIS(HEATHROW_FCR, HRW_BMAC_RESET);
UNLOCK(flags);
(void)MACIO_IN32(HEATHROW_FCR);
mdelay(10);
LOCK(flags);
MACIO_BIC(HEATHROW_FCR, HRW_BMAC_RESET);
UNLOCK(flags);
(void)MACIO_IN32(HEATHROW_FCR);
mdelay(10);
} else {
LOCK(flags);
MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
UNLOCK(flags);
}
return 0;
}
static long heathrow_sound_enable(struct device_node *node, long param,
long value)
{
struct macio_chip* macio;
unsigned long flags;
/* B&W G3 and Yikes don't support that properly (the
* sound appear to never come back after beeing shut down).
*/
if (pmac_mb.model_id == PMAC_TYPE_YOSEMITE ||
pmac_mb.model_id == PMAC_TYPE_YIKES)
return 0;
macio = macio_find(node, 0);
if (!macio)
return -ENODEV;
if (value) {
LOCK(flags);
MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
UNLOCK(flags);
(void)MACIO_IN32(HEATHROW_FCR);
} else {
LOCK(flags);
MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
UNLOCK(flags);
}
return 0;
}
static u32 save_fcr[6];
static u32 save_mbcr;
static struct dbdma_regs save_dbdma[13];
static struct dbdma_regs save_alt_dbdma[13];
static void dbdma_save(struct macio_chip *macio, struct dbdma_regs *save)
{
int i;
/* Save state & config of DBDMA channels */
for (i = 0; i < 13; i++) {
volatile struct dbdma_regs __iomem * chan = (void __iomem *)
(macio->base + ((0x8000+i*0x100)>>2));
save[i].cmdptr_hi = in_le32(&chan->cmdptr_hi);
save[i].cmdptr = in_le32(&chan->cmdptr);
save[i].intr_sel = in_le32(&chan->intr_sel);
save[i].br_sel = in_le32(&chan->br_sel);
save[i].wait_sel = in_le32(&chan->wait_sel);
}
}
static void dbdma_restore(struct macio_chip *macio, struct dbdma_regs *save)
{
int i;
/* Save state & config of DBDMA channels */
for (i = 0; i < 13; i++) {
volatile struct dbdma_regs __iomem * chan = (void __iomem *)
(macio->base + ((0x8000+i*0x100)>>2));
out_le32(&chan->control, (ACTIVE|DEAD|WAKE|FLUSH|PAUSE|RUN)<<16);
while (in_le32(&chan->status) & ACTIVE)
mb();
out_le32(&chan->cmdptr_hi, save[i].cmdptr_hi);
out_le32(&chan->cmdptr, save[i].cmdptr);
out_le32(&chan->intr_sel, save[i].intr_sel);
out_le32(&chan->br_sel, save[i].br_sel);
out_le32(&chan->wait_sel, save[i].wait_sel);
}
}
static void heathrow_sleep(struct macio_chip *macio, int secondary)
{
if (secondary) {
dbdma_save(macio, save_alt_dbdma);
save_fcr[2] = MACIO_IN32(0x38);
save_fcr[3] = MACIO_IN32(0x3c);
} else {
dbdma_save(macio, save_dbdma);
save_fcr[0] = MACIO_IN32(0x38);
save_fcr[1] = MACIO_IN32(0x3c);
save_mbcr = MACIO_IN32(0x34);
/* Make sure sound is shut down */
MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
/* This seems to be necessary as well or the fan
* keeps coming up and battery drains fast */
MACIO_BIC(HEATHROW_FCR, HRW_IOBUS_ENABLE);
MACIO_BIC(HEATHROW_FCR, HRW_IDE0_RESET_N);
/* Make sure eth is down even if module or sleep
* won't work properly */
MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE | HRW_BMAC_RESET);
}
/* Make sure modem is shut down */
MACIO_OUT8(HRW_GPIO_MODEM_RESET,
MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1);
MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
MACIO_BIC(HEATHROW_FCR, OH_SCCA_IO|OH_SCCB_IO|HRW_SCC_ENABLE);
/* Let things settle */
(void)MACIO_IN32(HEATHROW_FCR);
}
static void heathrow_wakeup(struct macio_chip *macio, int secondary)
{
if (secondary) {
MACIO_OUT32(0x38, save_fcr[2]);
(void)MACIO_IN32(0x38);
mdelay(1);
MACIO_OUT32(0x3c, save_fcr[3]);
(void)MACIO_IN32(0x38);
mdelay(10);
dbdma_restore(macio, save_alt_dbdma);
} else {
MACIO_OUT32(0x38, save_fcr[0] | HRW_IOBUS_ENABLE);
(void)MACIO_IN32(0x38);
mdelay(1);
MACIO_OUT32(0x3c, save_fcr[1]);
(void)MACIO_IN32(0x38);
mdelay(1);
MACIO_OUT32(0x34, save_mbcr);
(void)MACIO_IN32(0x38);
mdelay(10);
dbdma_restore(macio, save_dbdma);
}
}
static long heathrow_sleep_state(struct device_node *node, long param,
long value)
{
if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
return -EPERM;
if (value == 1) {
if (macio_chips[1].type == macio_gatwick)
heathrow_sleep(&macio_chips[0], 1);
heathrow_sleep(&macio_chips[0], 0);
} else if (value == 0) {
heathrow_wakeup(&macio_chips[0], 0);
if (macio_chips[1].type == macio_gatwick)
heathrow_wakeup(&macio_chips[0], 1);
}
return 0;
}
static long core99_scc_enable(struct device_node *node, long param, long value)
{
struct macio_chip* macio;
unsigned long flags;
unsigned long chan_mask;
u32 fcr;
macio = macio_find(node, 0);
if (!macio)
return -ENODEV;
if (!strcmp(node->name, "ch-a"))
chan_mask = MACIO_FLAG_SCCA_ON;
else if (!strcmp(node->name, "ch-b"))
chan_mask = MACIO_FLAG_SCCB_ON;
else
return -ENODEV;
if (value) {
int need_reset_scc = 0;
int need_reset_irda = 0;
LOCK(flags);
fcr = MACIO_IN32(KEYLARGO_FCR0);
/* Check if scc cell need enabling */
if (!(fcr & KL0_SCC_CELL_ENABLE)) {
fcr |= KL0_SCC_CELL_ENABLE;
need_reset_scc = 1;
}
if (chan_mask & MACIO_FLAG_SCCA_ON) {
fcr |= KL0_SCCA_ENABLE;
/* Don't enable line drivers for I2S modem */
if ((param & 0xfff) == PMAC_SCC_I2S1)
fcr &= ~KL0_SCC_A_INTF_ENABLE;
else
fcr |= KL0_SCC_A_INTF_ENABLE;
}
if (chan_mask & MACIO_FLAG_SCCB_ON) {
fcr |= KL0_SCCB_ENABLE;
/* Perform irda specific inits */
if ((param & 0xfff) == PMAC_SCC_IRDA) {
fcr &= ~KL0_SCC_B_INTF_ENABLE;
fcr |= KL0_IRDA_ENABLE;
fcr |= KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE;
fcr |= KL0_IRDA_SOURCE1_SEL;
fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
fcr &= ~(KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
need_reset_irda = 1;
} else
fcr |= KL0_SCC_B_INTF_ENABLE;
}
MACIO_OUT32(KEYLARGO_FCR0, fcr);
macio->flags |= chan_mask;
if (need_reset_scc) {
MACIO_BIS(KEYLARGO_FCR0, KL0_SCC_RESET);
(void)MACIO_IN32(KEYLARGO_FCR0);
UNLOCK(flags);
mdelay(15);
LOCK(flags);
MACIO_BIC(KEYLARGO_FCR0, KL0_SCC_RESET);
}
if (need_reset_irda) {
MACIO_BIS(KEYLARGO_FCR0, KL0_IRDA_RESET);
(void)MACIO_IN32(KEYLARGO_FCR0);
UNLOCK(flags);
mdelay(15);
LOCK(flags);
MACIO_BIC(KEYLARGO_FCR0, KL0_IRDA_RESET);
}
UNLOCK(flags);
if (param & PMAC_SCC_FLAG_XMON)
macio->flags |= MACIO_FLAG_SCC_LOCKED;
} else {
if (macio->flags & MACIO_FLAG_SCC_LOCKED)
return -EPERM;
LOCK(flags);
fcr = MACIO_IN32(KEYLARGO_FCR0);
if (chan_mask & MACIO_FLAG_SCCA_ON)
fcr &= ~KL0_SCCA_ENABLE;
if (chan_mask & MACIO_FLAG_SCCB_ON) {
fcr &= ~KL0_SCCB_ENABLE;
/* Perform irda specific clears */
if ((param & 0xfff) == PMAC_SCC_IRDA) {
fcr &= ~KL0_IRDA_ENABLE;
fcr &= ~(KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE);
fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
fcr &= ~(KL0_IRDA_SOURCE1_SEL|KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
}
}
MACIO_OUT32(KEYLARGO_FCR0, fcr);
if ((fcr & (KL0_SCCA_ENABLE | KL0_SCCB_ENABLE)) == 0) {
fcr &= ~KL0_SCC_CELL_ENABLE;
MACIO_OUT32(KEYLARGO_FCR0, fcr);
}
macio->flags &= ~(chan_mask);
UNLOCK(flags);
mdelay(10);
}
return 0;
}
static long
core99_modem_enable(struct device_node *node, long param, long value)
{
struct macio_chip* macio;
u8 gpio;
unsigned long flags;
/* Hack for internal USB modem */
if (node == NULL) {
if (macio_chips[0].type != macio_keylargo)
return -ENODEV;
node = macio_chips[0].of_node;
}
macio = macio_find(node, 0);
if (!macio)
return -ENODEV;
gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
if (!value) {
LOCK(flags);
MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
UNLOCK(flags);
(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
mdelay(250);
}
LOCK(flags);
if (value) {
MACIO_BIC(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
UNLOCK(flags);
(void)MACIO_IN32(KEYLARGO_FCR2);
mdelay(250);
} else {
MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
UNLOCK(flags);
}
if (value) {
LOCK(flags);
MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
UNLOCK(flags); mdelay(250); LOCK(flags);
MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
UNLOCK(flags); mdelay(250); LOCK(flags);
MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
UNLOCK(flags); mdelay(250);
}
return 0;
}
static long
pangea_modem_enable(struct device_node *node, long param, long value)
{
struct macio_chip* macio;
u8 gpio;
unsigned long flags;
/* Hack for internal USB modem */
if (node == NULL) {
if (macio_chips[0].type != macio_pangea &&
macio_chips[0].type != macio_intrepid)
return -ENODEV;
node = macio_chips[0].of_node;
}
macio = macio_find(node, 0);
if (!macio)
return -ENODEV;
gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
if (!value) {
LOCK(flags);
MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
UNLOCK(flags);
(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
mdelay(250);
}
LOCK(flags);
if (value) {
MACIO_OUT8(KL_GPIO_MODEM_POWER,
KEYLARGO_GPIO_OUTPUT_ENABLE);
UNLOCK(flags);
(void)MACIO_IN32(KEYLARGO_FCR2);
mdelay(250);
} else {
MACIO_OUT8(KL_GPIO_MODEM_POWER,
KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
UNLOCK(flags);
}
if (value) {
LOCK(flags);
MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
UNLOCK(flags); mdelay(250); LOCK(flags);
MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
UNLOCK(flags); mdelay(250); LOCK(flags);
MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
(void)MACIO_IN8(KL_GPIO_MODEM_RESET);
UNLOCK(flags); mdelay(250);
}
return 0;
}
static long
core99_ata100_enable(struct device_node *node, long value)
{
unsigned long flags;
struct pci_dev *pdev = NULL;
u8 pbus, pid;
int rc;
if (uninorth_rev < 0x24)
return -ENODEV;
LOCK(flags);
if (value)
UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
else
UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
(void)UN_IN(UNI_N_CLOCK_CNTL);
UNLOCK(flags);
udelay(20);
if (value) {
if (pci_device_from_OF_node(node, &pbus, &pid) == 0)
pdev = pci_get_bus_and_slot(pbus, pid);
if (pdev == NULL)
return 0;
rc = pci_enable_device(pdev);
if (rc == 0)
pci_set_master(pdev);
pci_dev_put(pdev);
if (rc)
return rc;
}
return 0;
}
static long
core99_ide_enable(struct device_node *node, long param, long value)
{
/* Bus ID 0 to 2 are KeyLargo based IDE, busID 3 is U2
* based ata-100
*/
switch(param) {
case 0:
return simple_feature_tweak(node, macio_unknown,
KEYLARGO_FCR1, KL1_EIDE0_ENABLE, value);
case 1:
return simple_feature_tweak(node, macio_unknown,
KEYLARGO_FCR1, KL1_EIDE1_ENABLE, value);
case 2:
return simple_feature_tweak(node, macio_unknown,
KEYLARGO_FCR1, KL1_UIDE_ENABLE, value);
case 3:
return core99_ata100_enable(node, value);
default:
return -ENODEV;
}
}
static long
core99_ide_reset(struct device_node *node, long param, long value)
{
switch(param) {
case 0:
return simple_feature_tweak(node, macio_unknown,
KEYLARGO_FCR1, KL1_EIDE0_RESET_N, !value);
case 1:
return simple_feature_tweak(node, macio_unknown,
KEYLARGO_FCR1, KL1_EIDE1_RESET_N, !value);
case 2:
return simple_feature_tweak(node, macio_unknown,
KEYLARGO_FCR1, KL1_UIDE_RESET_N, !value);
default:
return -ENODEV;
}
}
static long
core99_gmac_enable(struct device_node *node, long param, long value)
{
unsigned long flags;
LOCK(flags);
if (value)
UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
else
UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
(void)UN_IN(UNI_N_CLOCK_CNTL);
UNLOCK(flags);
udelay(20);
return 0;
}
static long
core99_gmac_phy_reset(struct device_node *node, long param, long value)
{
unsigned long flags;
struct macio_chip *macio;
macio = &macio_chips[0];
if (macio->type != macio_keylargo && macio->type != macio_pangea &&
macio->type != macio_intrepid)
return -ENODEV;
LOCK(flags);
MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, KEYLARGO_GPIO_OUTPUT_ENABLE);
(void)MACIO_IN8(KL_GPIO_ETH_PHY_RESET);
UNLOCK(flags);
mdelay(10);
LOCK(flags);
MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, /*KEYLARGO_GPIO_OUTPUT_ENABLE | */
KEYLARGO_GPIO_OUTOUT_DATA);
UNLOCK(flags);
mdelay(10);
return 0;
}
static long
core99_sound_chip_enable(struct device_node *node, long param, long value)
{
struct macio_chip* macio;
unsigned long flags;
macio = macio_find(node, 0);
if (!macio)
return -ENODEV;
/* Do a better probe code, screamer G4 desktops &
* iMacs can do that too, add a recalibrate in
* the driver as well
*/
if (pmac_mb.model_id == PMAC_TYPE_PISMO ||
pmac_mb.model_id == PMAC_TYPE_TITANIUM) {
LOCK(flags);
if (value)
MACIO_OUT8(KL_GPIO_SOUND_POWER,
KEYLARGO_GPIO_OUTPUT_ENABLE |
KEYLARGO_GPIO_OUTOUT_DATA);
else
MACIO_OUT8(KL_GPIO_SOUND_POWER,
KEYLARGO_GPIO_OUTPUT_ENABLE);
(void)MACIO_IN8(KL_GPIO_SOUND_POWER);
UNLOCK(flags);
}
return 0;
}
static long
core99_airport_enable(struct device_node *node, long param, long value)
{
struct macio_chip* macio;
unsigned long flags;
int state;
macio = macio_find(node, 0);
if (!macio)
return -ENODEV;
/* Hint: we allow passing of macio itself for the sake of the
* sleep code
*/
if (node != macio->of_node &&
(!node->parent || node->parent != macio->of_node))
return -ENODEV;
state = (macio->flags & MACIO_FLAG_AIRPORT_ON) != 0;
if (value == state)
return 0;
if (value) {
/* This code is a reproduction of OF enable-cardslot
* and init-wireless methods, slightly hacked until
* I got it working.
*/
LOCK(flags);
MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 5);
(void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
UNLOCK(flags);
mdelay(10);
LOCK(flags);
MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 4);
(void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
UNLOCK(flags);
mdelay(10);
LOCK(flags);
MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
(void)MACIO_IN32(KEYLARGO_FCR2);
udelay(10);
MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xb, 0);
(void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xb);
udelay(10);
MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xa, 0x28);
(void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xa);
udelay(10);
MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xd, 0x28);
(void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xd);
udelay(10);
MACIO_OUT8(KEYLARGO_GPIO_0+0xd, 0x28);
(void)MACIO_IN8(KEYLARGO_GPIO_0+0xd);
udelay(10);
MACIO_OUT8(KEYLARGO_GPIO_0+0xe, 0x28);
(void)MACIO_IN8(KEYLARGO_GPIO_0+0xe);
UNLOCK(flags);
udelay(10);
MACIO_OUT32(0x1c000, 0);
mdelay(1);
MACIO_OUT8(0x1a3e0, 0x41);
(void)MACIO_IN8(0x1a3e0);
udelay(10);
LOCK(flags);
MACIO_BIS(KEYLARGO_FCR2, KL2_CARDSEL_16);
(void)MACIO_IN32(KEYLARGO_FCR2);
UNLOCK(flags);
mdelay(100);
macio->flags |= MACIO_FLAG_AIRPORT_ON;
} else {
LOCK(flags);
MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
(void)MACIO_IN32(KEYLARGO_FCR2);
MACIO_OUT8(KL_GPIO_AIRPORT_0, 0);
MACIO_OUT8(KL_GPIO_AIRPORT_1, 0);
MACIO_OUT8(KL_GPIO_AIRPORT_2, 0);
MACIO_OUT8(KL_GPIO_AIRPORT_3, 0);
MACIO_OUT8(KL_GPIO_AIRPORT_4, 0);
(void)MACIO_IN8(KL_GPIO_AIRPORT_4);
UNLOCK(flags);
macio->flags &= ~MACIO_FLAG_AIRPORT_ON;
}
return 0;
}
#ifdef CONFIG_SMP
static long
core99_reset_cpu(struct device_node *node, long param, long value)
{
unsigned int reset_io = 0;
unsigned long flags;
struct macio_chip *macio;
struct device_node *np;
struct device_node *cpus;
const int dflt_reset_lines[] = { KL_GPIO_RESET_CPU0,
KL_GPIO_RESET_CPU1,
KL_GPIO_RESET_CPU2,
KL_GPIO_RESET_CPU3 };
macio = &macio_chips[0];
if (macio->type != macio_keylargo)
return -ENODEV;
cpus = of_find_node_by_path("/cpus");
if (cpus == NULL)
return -ENODEV;
for (np = cpus->child; np != NULL; np = np->sibling) {
const u32 *num = of_get_property(np, "reg", NULL);
const u32 *rst = of_get_property(np, "soft-reset", NULL);
if (num == NULL || rst == NULL)
continue;
if (param == *num) {
reset_io = *rst;
break;
}
}
of_node_put(cpus);
if (np == NULL || reset_io == 0)
reset_io = dflt_reset_lines[param];
LOCK(flags);
MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
(void)MACIO_IN8(reset_io);
udelay(1);
MACIO_OUT8(reset_io, 0);
(void)MACIO_IN8(reset_io);
UNLOCK(flags);
return 0;
}
#endif /* CONFIG_SMP */
static long
core99_usb_enable(struct device_node *node, long param, long value)
{
struct macio_chip *macio;
unsigned long flags;
const char *prop;
int number;
u32 reg;
macio = &macio_chips[0];
if (macio->type != macio_keylargo && macio->type != macio_pangea &&
macio->type != macio_intrepid)
return -ENODEV;
prop = of_get_property(node, "AAPL,clock-id", NULL);
if (!prop)
return -ENODEV;
if (strncmp(prop, "usb0u048", 8) == 0)
number = 0;
else if (strncmp(prop, "usb1u148", 8) == 0)
number = 2;
else if (strncmp(prop, "usb2u248", 8) == 0)
number = 4;
else
return -ENODEV;
/* Sorry for the brute-force locking, but this is only used during
* sleep and the timing seem to be critical
*/
LOCK(flags);
if (value) {
/* Turn ON */
if (number == 0) {
MACIO_BIC(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
(void)MACIO_IN32(KEYLARGO_FCR0);
UNLOCK(flags);
mdelay(1);
LOCK(flags);
MACIO_BIS(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
} else if (number == 2) {
MACIO_BIC(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
UNLOCK(flags);
(void)MACIO_IN32(KEYLARGO_FCR0);
mdelay(1);
LOCK(flags);
MACIO_BIS(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
} else if (number == 4) {
MACIO_BIC(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
UNLOCK(flags);
(void)MACIO_IN32(KEYLARGO_FCR1);
mdelay(1);
LOCK(flags);
MACIO_BIS(KEYLARGO_FCR1, KL1_USB2_CELL_ENABLE);
}
if (number < 4) {
reg = MACIO_IN32(KEYLARGO_FCR4);
reg &= ~(KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number));
reg &= ~(KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1));
MACIO_OUT32(KEYLARGO_FCR4, reg);
(void)MACIO_IN32(KEYLARGO_FCR4);
udelay(10);
} else {
reg = MACIO_IN32(KEYLARGO_FCR3);
reg &= ~(KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0));
reg &= ~(KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1));
MACIO_OUT32(KEYLARGO_FCR3, reg);
(void)MACIO_IN32(KEYLARGO_FCR3);
udelay(10);
}
if (macio->type == macio_intrepid) {
/* wait for clock stopped bits to clear */
u32 test0 = 0, test1 = 0;
u32 status0, status1;
int timeout = 1000;
UNLOCK(flags);
switch (number) {
case 0:
test0 = UNI_N_CLOCK_STOPPED_USB0;
test1 = UNI_N_CLOCK_STOPPED_USB0PCI;
break;
case 2:
test0 = UNI_N_CLOCK_STOPPED_USB1;
test1 = UNI_N_CLOCK_STOPPED_USB1PCI;
break;
case 4:
test0 = UNI_N_CLOCK_STOPPED_USB2;
test1 = UNI_N_CLOCK_STOPPED_USB2PCI;
break;
}
do {
if (--timeout <= 0) {
printk(KERN_ERR "core99_usb_enable: "
"Timeout waiting for clocks\n");
break;
}
mdelay(1);
status0 = UN_IN(UNI_N_CLOCK_STOP_STATUS0);
status1 = UN_IN(UNI_N_CLOCK_STOP_STATUS1);
} while ((status0 & test0) | (status1 & test1));
LOCK(flags);
}
} else {
/* Turn OFF */
if (number < 4) {
reg = MACIO_IN32(KEYLARGO_FCR4);
reg |= KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number);
reg |= KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1);
MACIO_OUT32(KEYLARGO_FCR4, reg);
(void)MACIO_IN32(KEYLARGO_FCR4);
udelay(1);
} else {
reg = MACIO_IN32(KEYLARGO_FCR3);
reg |= KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0);
reg |= KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1);
MACIO_OUT32(KEYLARGO_FCR3, reg);
(void)MACIO_IN32(KEYLARGO_FCR3);
udelay(1);
}
if (number == 0) {
if (macio->type != macio_intrepid)
MACIO_BIC(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
(void)MACIO_IN32(KEYLARGO_FCR0);
udelay(1);
MACIO_BIS(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
(void)MACIO_IN32(KEYLARGO_FCR0);
} else if (number == 2) {
if (macio->type != macio_intrepid)
MACIO_BIC(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
(void)MACIO_IN32(KEYLARGO_FCR0);
udelay(1);
MACIO_BIS(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
(void)MACIO_IN32(KEYLARGO_FCR0);
} else if (number == 4) {
udelay(1);
MACIO_BIS(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
(void)MACIO_IN32(KEYLARGO_FCR1);
}
udelay(1);
}
UNLOCK(flags);
return 0;
}
static long
core99_firewire_enable(struct device_node *node, long param, long value)
{
unsigned long flags;
struct macio_chip *macio;
macio = &macio_chips[0];
if (macio->type != macio_keylargo && macio->type != macio_pangea &&
macio->type != macio_intrepid)
return -ENODEV;
if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
return -ENODEV;
LOCK(flags);
if (value) {
UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
(void)UN_IN(UNI_N_CLOCK_CNTL);
} else {
UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
(void)UN_IN(UNI_N_CLOCK_CNTL);
}
UNLOCK(flags);
mdelay(1);
return 0;
}
static long
core99_firewire_cable_power(struct device_node *node, long param, long value)
{
unsigned long flags;
struct macio_chip *macio;
/* Trick: we allow NULL node */
if ((pmac_mb.board_flags & PMAC_MB_HAS_FW_POWER) == 0)
return -ENODEV;
macio = &macio_chips[0];
if (macio->type != macio_keylargo && macio->type != macio_pangea &&
macio->type != macio_intrepid)
return -ENODEV;
if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
return -ENODEV;
LOCK(flags);
if (value) {
MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 0);
MACIO_IN8(KL_GPIO_FW_CABLE_POWER);
udelay(10);
} else {
MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 4);
MACIO_IN8(KL_GPIO_FW_CABLE_POWER); udelay(10);
}
UNLOCK(flags);
mdelay(1);
return 0;
}
static long
intrepid_aack_delay_enable(struct device_node *node, long param, long value)
{
unsigned long flags;
if (uninorth_rev < 0xd2)
return -ENODEV;
LOCK(flags);
if (param)
UN_BIS(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
else
UN_BIC(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
UNLOCK(flags);
return 0;
}
#endif /* CONFIG_POWER4 */
static long
core99_read_gpio(struct device_node *node, long param, long value)
{
struct macio_chip *macio = &macio_chips[0];
return MACIO_IN8(param);
}
static long
core99_write_gpio(struct device_node *node, long param, long value)
{
struct macio_chip *macio = &macio_chips[0];
MACIO_OUT8(param, (u8)(value & 0xff));
return 0;
}
#ifdef CONFIG_POWER4
static long g5_gmac_enable(struct device_node *node, long param, long value)
{
struct macio_chip *macio = &macio_chips[0];
unsigned long flags;
if (node == NULL)
return -ENODEV;
LOCK(flags);
if (value) {
MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
mb();
k2_skiplist[0] = NULL;
} else {
k2_skiplist[0] = node;
mb();
MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
}
UNLOCK(flags);
mdelay(1);
return 0;
}
static long g5_fw_enable(struct device_node *node, long param, long value)
{
struct macio_chip *macio = &macio_chips[0];
unsigned long flags;
if (node == NULL)
return -ENODEV;
LOCK(flags);
if (value) {
MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
mb();
k2_skiplist[1] = NULL;
} else {
k2_skiplist[1] = node;
mb();
MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
}
UNLOCK(flags);
mdelay(1);
return 0;
}
static long g5_mpic_enable(struct device_node *node, long param, long value)
{
unsigned long flags;
struct device_node *parent = of_get_parent(node);
int is_u3;
if (parent == NULL)
return 0;
is_u3 = strcmp(parent->name, "u3") == 0 ||
strcmp(parent->name, "u4") == 0;
of_node_put(parent);
if (!is_u3)
return 0;
LOCK(flags);
UN_BIS(U3_TOGGLE_REG, U3_MPIC_RESET | U3_MPIC_OUTPUT_ENABLE);
UNLOCK(flags);
return 0;
}
static long g5_eth_phy_reset(struct device_node *node, long param, long value)
{
struct macio_chip *macio = &macio_chips[0];
struct device_node *phy;
int need_reset;
/*
* We must not reset the combo PHYs, only the BCM5221 found in
* the iMac G5.
*/
phy = of_get_next_child(node, NULL);
if (!phy)
return -ENODEV;
need_reset = of_device_is_compatible(phy, "B5221");
of_node_put(phy);
if (!need_reset)
return 0;
/* PHY reset is GPIO 29, not in device-tree unfortunately */
MACIO_OUT8(K2_GPIO_EXTINT_0 + 29,
KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
/* Thankfully, this is now always called at a time when we can
* schedule by sungem.
*/
msleep(10);
MACIO_OUT8(K2_GPIO_EXTINT_0 + 29, 0);
return 0;
}
static long g5_i2s_enable(struct device_node *node, long param, long value)
{
/* Very crude implementation for now */
struct macio_chip *macio = &macio_chips[0];
unsigned long flags;
int cell;
u32 fcrs[3][3] = {
{ 0,
K2_FCR1_I2S0_CELL_ENABLE |
K2_FCR1_I2S0_CLK_ENABLE_BIT | K2_FCR1_I2S0_ENABLE,
KL3_I2S0_CLK18_ENABLE
},
{ KL0_SCC_A_INTF_ENABLE,
K2_FCR1_I2S1_CELL_ENABLE |
K2_FCR1_I2S1_CLK_ENABLE_BIT | K2_FCR1_I2S1_ENABLE,
KL3_I2S1_CLK18_ENABLE
},
{ KL0_SCC_B_INTF_ENABLE,
SH_FCR1_I2S2_CELL_ENABLE |
SH_FCR1_I2S2_CLK_ENABLE_BIT | SH_FCR1_I2S2_ENABLE,
SH_FCR3_I2S2_CLK18_ENABLE
},
};
if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
return -ENODEV;
if (strncmp(node->name, "i2s-", 4))
return -ENODEV;
cell = node->name[4] - 'a';
switch(cell) {
case 0:
case 1:
break;
case 2:
if (macio->type == macio_shasta)
break;
default:
return -ENODEV;
}
LOCK(flags);
if (value) {
MACIO_BIC(KEYLARGO_FCR0, fcrs[cell][0]);
MACIO_BIS(KEYLARGO_FCR1, fcrs[cell][1]);
MACIO_BIS(KEYLARGO_FCR3, fcrs[cell][2]);
} else {
MACIO_BIC(KEYLARGO_FCR3, fcrs[cell][2]);
MACIO_BIC(KEYLARGO_FCR1, fcrs[cell][1]);
MACIO_BIS(KEYLARGO_FCR0, fcrs[cell][0]);
}
udelay(10);
UNLOCK(flags);
return 0;
}
#ifdef CONFIG_SMP
static long g5_reset_cpu(struct device_node *node, long param, long value)
{
unsigned int reset_io = 0;
unsigned long flags;
struct macio_chip *macio;
struct device_node *np;
struct device_node *cpus;
macio = &macio_chips[0];
if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
return -ENODEV;
cpus = of_find_node_by_path("/cpus");
if (cpus == NULL)
return -ENODEV;
for (np = cpus->child; np != NULL; np = np->sibling) {
const u32 *num = of_get_property(np, "reg", NULL);
const u32 *rst = of_get_property(np, "soft-reset", NULL);
if (num == NULL || rst == NULL)
continue;
if (param == *num) {
reset_io = *rst;
break;
}
}
of_node_put(cpus);
if (np == NULL || reset_io == 0)
return -ENODEV;
LOCK(flags);
MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
(void)MACIO_IN8(reset_io);
udelay(1);
MACIO_OUT8(reset_io, 0);
(void)MACIO_IN8(reset_io);
UNLOCK(flags);
return 0;
}
#endif /* CONFIG_SMP */
/*
* This can be called from pmac_smp so isn't static
*
* This takes the second CPU off the bus on dual CPU machines
* running UP
*/
void g5_phy_disable_cpu1(void)
{
if (uninorth_maj == 3)
UN_OUT(U3_API_PHY_CONFIG_1, 0);
}
#endif /* CONFIG_POWER4 */
#ifndef CONFIG_POWER4
#ifdef CONFIG_PM
static u32 save_gpio_levels[2];
static u8 save_gpio_extint[KEYLARGO_GPIO_EXTINT_CNT];
static u8 save_gpio_normal[KEYLARGO_GPIO_CNT];
static u32 save_unin_clock_ctl;
static void keylargo_shutdown(struct macio_chip *macio, int sleep_mode)
{
u32 temp;
if (sleep_mode) {
mdelay(1);
MACIO_BIS(KEYLARGO_FCR0, KL0_USB_REF_SUSPEND);
(void)MACIO_IN32(KEYLARGO_FCR0);
mdelay(1);
}
MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
KL0_SCC_CELL_ENABLE |
KL0_IRDA_ENABLE | KL0_IRDA_CLK32_ENABLE |
KL0_IRDA_CLK19_ENABLE);
MACIO_BIC(KEYLARGO_MBCR, KL_MBCR_MB0_DEV_MASK);
MACIO_BIS(KEYLARGO_MBCR, KL_MBCR_MB0_IDE_ENABLE);
MACIO_BIC(KEYLARGO_FCR1,
KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
KL1_EIDE0_ENABLE | KL1_EIDE0_RESET_N |
KL1_EIDE1_ENABLE | KL1_EIDE1_RESET_N |
KL1_UIDE_ENABLE);
MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
MACIO_BIC(KEYLARGO_FCR2, KL2_IOBUS_ENABLE);
temp = MACIO_IN32(KEYLARGO_FCR3);
if (macio->rev >= 2) {
temp |= KL3_SHUTDOWN_PLL2X;
if (sleep_mode)
temp |= KL3_SHUTDOWN_PLL_TOTAL;
}
temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
KL3_SHUTDOWN_PLLKW35;
if (sleep_mode)
temp |= KL3_SHUTDOWN_PLLKW12;
temp &= ~(KL3_CLK66_ENABLE | KL3_CLK49_ENABLE | KL3_CLK45_ENABLE
| KL3_CLK31_ENABLE | KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
if (sleep_mode)
temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_VIA_CLK16_ENABLE);
MACIO_OUT32(KEYLARGO_FCR3, temp);
/* Flush posted writes & wait a bit */
(void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
}
static void pangea_shutdown(struct macio_chip *macio, int sleep_mode)
{
u32 temp;
MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
KL0_SCC_CELL_ENABLE |
KL0_USB0_CELL_ENABLE | KL0_USB1_CELL_ENABLE);
MACIO_BIC(KEYLARGO_FCR1,
KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
KL1_UIDE_ENABLE);
if (pmac_mb.board_flags & PMAC_MB_MOBILE)
MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
temp = MACIO_IN32(KEYLARGO_FCR3);
temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
KL3_SHUTDOWN_PLLKW35;
temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE | KL3_CLK31_ENABLE
| KL3_I2S0_CLK18_ENABLE | KL3_I2S1_CLK18_ENABLE);
if (sleep_mode)
temp &= ~(KL3_VIA_CLK16_ENABLE | KL3_TIMER_CLK18_ENABLE);
MACIO_OUT32(KEYLARGO_FCR3, temp);
/* Flush posted writes & wait a bit */
(void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
}
static void intrepid_shutdown(struct macio_chip *macio, int sleep_mode)
{
u32 temp;
MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
KL0_SCC_CELL_ENABLE);
MACIO_BIC(KEYLARGO_FCR1,
KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
KL1_EIDE0_ENABLE);
if (pmac_mb.board_flags & PMAC_MB_MOBILE)
MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
temp = MACIO_IN32(KEYLARGO_FCR3);
temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE |
KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
if (sleep_mode)
temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_IT_VIA_CLK32_ENABLE);
MACIO_OUT32(KEYLARGO_FCR3, temp);
/* Flush posted writes & wait a bit */
(void)MACIO_IN32(KEYLARGO_FCR0);
mdelay(10);
}
static int
core99_sleep(void)
{
struct macio_chip *macio;
int i;
macio = &macio_chips[0];
if (macio->type != macio_keylargo && macio->type != macio_pangea &&
macio->type != macio_intrepid)
return -ENODEV;
/* We power off the wireless slot in case it was not done
* by the driver. We don't power it on automatically however
*/
if (macio->flags & MACIO_FLAG_AIRPORT_ON)
core99_airport_enable(macio->of_node, 0, 0);
/* We power off the FW cable. Should be done by the driver... */
if (macio->flags & MACIO_FLAG_FW_SUPPORTED) {
core99_firewire_enable(NULL, 0, 0);
core99_firewire_cable_power(NULL, 0, 0);
}
/* We make sure int. modem is off (in case driver lost it) */
if (macio->type == macio_keylargo)
core99_modem_enable(macio->of_node, 0, 0);
else
pangea_modem_enable(macio->of_node, 0, 0);
/* We make sure the sound is off as well */
core99_sound_chip_enable(macio->of_node, 0, 0);
/*
* Save various bits of KeyLargo
*/
/* Save the state of the various GPIOs */
save_gpio_levels[0] = MACIO_IN32(KEYLARGO_GPIO_LEVELS0);
save_gpio_levels[1] = MACIO_IN32(KEYLARGO_GPIO_LEVELS1);
for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
save_gpio_extint[i] = MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+i);
for (i=0; i<KEYLARGO_GPIO_CNT; i++)
save_gpio_normal[i] = MACIO_IN8(KEYLARGO_GPIO_0+i);
/* Save the FCRs */
if (macio->type == macio_keylargo)
save_mbcr = MACIO_IN32(KEYLARGO_MBCR);
save_fcr[0] = MACIO_IN32(KEYLARGO_FCR0);
save_fcr[1] = MACIO_IN32(KEYLARGO_FCR1);
save_fcr[2] = MACIO_IN32(KEYLARGO_FCR2);
save_fcr[3] = MACIO_IN32(KEYLARGO_FCR3);
save_fcr[4] = MACIO_IN32(KEYLARGO_FCR4);
if (macio->type == macio_pangea || macio->type == macio_intrepid)
save_fcr[5] = MACIO_IN32(KEYLARGO_FCR5);
/* Save state & config of DBDMA channels */
dbdma_save(macio, save_dbdma);
/*
* Turn off as much as we can
*/
if (macio->type == macio_pangea)
pangea_shutdown(macio, 1);
else if (macio->type == macio_intrepid)
intrepid_shutdown(macio, 1);
else if (macio->type == macio_keylargo)
keylargo_shutdown(macio, 1);
/*
* Put the host bridge to sleep
*/
save_unin_clock_ctl = UN_IN(UNI_N_CLOCK_CNTL);
/* Note: do not switch GMAC off, driver does it when necessary, WOL must keep it
* enabled !
*/
UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl &
~(/*UNI_N_CLOCK_CNTL_GMAC|*/UNI_N_CLOCK_CNTL_FW/*|UNI_N_CLOCK_CNTL_PCI*/));
udelay(100);
UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_SLEEP);
mdelay(10);
/*
* FIXME: A bit of black magic with OpenPIC (don't ask me why)
*/
if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
MACIO_BIS(0x506e0, 0x00400000);
MACIO_BIS(0x506e0, 0x80000000);
}
return 0;
}
static int
core99_wake_up(void)
{
struct macio_chip *macio;
int i;
macio = &macio_chips[0];
if (macio->type != macio_keylargo && macio->type != macio_pangea &&
macio->type != macio_intrepid)
return -ENODEV;
/*
* Wakeup the host bridge
*/
UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
udelay(10);
UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
udelay(10);
/*
* Restore KeyLargo
*/
if (macio->type == macio_keylargo) {
MACIO_OUT32(KEYLARGO_MBCR, save_mbcr);
(void)MACIO_IN32(KEYLARGO_MBCR); udelay(10);
}
MACIO_OUT32(KEYLARGO_FCR0, save_fcr[0]);
(void)MACIO_IN32(KEYLARGO_FCR0); udelay(10);
MACIO_OUT32(KEYLARGO_FCR1, save_fcr[1]);
(void)MACIO_IN32(KEYLARGO_FCR1); udelay(10);
MACIO_OUT32(KEYLARGO_FCR2, save_fcr[2]);
(void)MACIO_IN32(KEYLARGO_FCR2); udelay(10);
MACIO_OUT32(KEYLARGO_FCR3, save_fcr[3]);
(void)MACIO_IN32(KEYLARGO_FCR3); udelay(10);
MACIO_OUT32(KEYLARGO_FCR4, save_fcr[4]);
(void)MACIO_IN32(KEYLARGO_FCR4); udelay(10);
if (macio->type == macio_pangea || macio->type == macio_intrepid) {
MACIO_OUT32(KEYLARGO_FCR5, save_fcr[5]);
(void)MACIO_IN32(KEYLARGO_FCR5); udelay(10);
}
dbdma_restore(macio, save_dbdma);
MACIO_OUT32(KEYLARGO_GPIO_LEVELS0, save_gpio_levels[0]);
MACIO_OUT32(KEYLARGO_GPIO_LEVELS1, save_gpio_levels[1]);
for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+i, save_gpio_extint[i]);
for (i=0; i<KEYLARGO_GPIO_CNT; i++)
MACIO_OUT8(KEYLARGO_GPIO_0+i, save_gpio_normal[i]);
/* FIXME more black magic with OpenPIC ... */
if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
MACIO_BIC(0x506e0, 0x00400000);
MACIO_BIC(0x506e0, 0x80000000);
}
UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl);
udelay(100);
return 0;
}
#endif /* CONFIG_PM */
static long
core99_sleep_state(struct device_node *node, long param, long value)
{
/* Param == 1 means to enter the "fake sleep" mode that is
* used for CPU speed switch
*/
if (param == 1) {
if (value == 1) {
UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_IDLE2);
} else {
UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
udelay(10);
UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
udelay(10);
}
return 0;
}
if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
return -EPERM;
#ifdef CONFIG_PM
if (value == 1)
return core99_sleep();
else if (value == 0)
return core99_wake_up();
#endif /* CONFIG_PM */
return 0;
}
#endif /* CONFIG_POWER4 */
static long
generic_dev_can_wake(struct device_node *node, long param, long value)
{
/* Todo: eventually check we are really dealing with on-board
* video device ...
*/
if (pmac_mb.board_flags & PMAC_MB_MAY_SLEEP)
pmac_mb.board_flags |= PMAC_MB_CAN_SLEEP;
return 0;
}
static long generic_get_mb_info(struct device_node *node, long param, long value)
{
switch(param) {
case PMAC_MB_INFO_MODEL:
return pmac_mb.model_id;
case PMAC_MB_INFO_FLAGS:
return pmac_mb.board_flags;
case PMAC_MB_INFO_NAME:
/* hack hack hack... but should work */
*((const char **)value) = pmac_mb.model_name;
return 0;
}
return -EINVAL;
}
/*
* Table definitions
*/
/* Used on any machine
*/
static struct feature_table_entry any_features[] = {
{ PMAC_FTR_GET_MB_INFO, generic_get_mb_info },
{ PMAC_FTR_DEVICE_CAN_WAKE, generic_dev_can_wake },
{ 0, NULL }
};
#ifndef CONFIG_POWER4
/* OHare based motherboards. Currently, we only use these on the
* 2400,3400 and 3500 series powerbooks. Some older desktops seem
* to have issues with turning on/off those asic cells
*/
static struct feature_table_entry ohare_features[] = {
{ PMAC_FTR_SCC_ENABLE, ohare_htw_scc_enable },
{ PMAC_FTR_SWIM3_ENABLE, ohare_floppy_enable },
{ PMAC_FTR_MESH_ENABLE, ohare_mesh_enable },
{ PMAC_FTR_IDE_ENABLE, ohare_ide_enable},
{ PMAC_FTR_IDE_RESET, ohare_ide_reset},
{ PMAC_FTR_SLEEP_STATE, ohare_sleep_state },
{ 0, NULL }
};
/* Heathrow desktop machines (Beige G3).
* Separated as some features couldn't be properly tested
* and the serial port control bits appear to confuse it.
*/
static struct feature_table_entry heathrow_desktop_features[] = {
{ PMAC_FTR_SWIM3_ENABLE, heathrow_floppy_enable },
{ PMAC_FTR_MESH_ENABLE, heathrow_mesh_enable },
{ PMAC_FTR_IDE_ENABLE, heathrow_ide_enable },
{ PMAC_FTR_IDE_RESET, heathrow_ide_reset },
{ PMAC_FTR_BMAC_ENABLE, heathrow_bmac_enable },
{ 0, NULL }
};
/* Heathrow based laptop, that is the Wallstreet and mainstreet
* powerbooks.
*/
static struct feature_table_entry heathrow_laptop_features[] = {
{ PMAC_FTR_SCC_ENABLE, ohare_htw_scc_enable },
{ PMAC_FTR_MODEM_ENABLE, heathrow_modem_enable },
{ PMAC_FTR_SWIM3_ENABLE, heathrow_floppy_enable },
{ PMAC_FTR_MESH_ENABLE, heathrow_mesh_enable },
{ PMAC_FTR_IDE_ENABLE, heathrow_ide_enable },
{ PMAC_FTR_IDE_RESET, heathrow_ide_reset },
{ PMAC_FTR_BMAC_ENABLE, heathrow_bmac_enable },
{ PMAC_FTR_SOUND_CHIP_ENABLE, heathrow_sound_enable },
{ PMAC_FTR_SLEEP_STATE, heathrow_sleep_state },
{ 0, NULL }
};
/* Paddington based machines
* The lombard (101) powerbook, first iMac models, B&W G3 and Yikes G4.
*/
static struct feature_table_entry paddington_features[] = {
{ PMAC_FTR_SCC_ENABLE, ohare_htw_scc_enable },
{ PMAC_FTR_MODEM_ENABLE, heathrow_modem_enable },
{ PMAC_FTR_SWIM3_ENABLE, heathrow_floppy_enable },
{ PMAC_FTR_MESH_ENABLE, heathrow_mesh_enable },
{ PMAC_FTR_IDE_ENABLE, heathrow_ide_enable },
{ PMAC_FTR_IDE_RESET, heathrow_ide_reset },
{ PMAC_FTR_BMAC_ENABLE, heathrow_bmac_enable },
{ PMAC_FTR_SOUND_CHIP_ENABLE, heathrow_sound_enable },
{ PMAC_FTR_SLEEP_STATE, heathrow_sleep_state },
{ 0, NULL }
};
/* Core99 & MacRISC 2 machines (all machines released since the
* iBook (included), that is all AGP machines, except pangea
* chipset. The pangea chipset is the "combo" UniNorth/KeyLargo
* used on iBook2 & iMac "flow power".
*/
static struct feature_table_entry core99_features[] = {
{ PMAC_FTR_SCC_ENABLE, core99_scc_enable },
{ PMAC_FTR_MODEM_ENABLE, core99_modem_enable },
{ PMAC_FTR_IDE_ENABLE, core99_ide_enable },
{ PMAC_FTR_IDE_RESET, core99_ide_reset },
{ PMAC_FTR_GMAC_ENABLE, core99_gmac_enable },
{ PMAC_FTR_GMAC_PHY_RESET, core99_gmac_phy_reset },
{ PMAC_FTR_SOUND_CHIP_ENABLE, core99_sound_chip_enable },
{ PMAC_FTR_AIRPORT_ENABLE, core99_airport_enable },
{ PMAC_FTR_USB_ENABLE, core99_usb_enable },
{ PMAC_FTR_1394_ENABLE, core99_firewire_enable },
{ PMAC_FTR_1394_CABLE_POWER, core99_firewire_cable_power },
#ifdef CONFIG_PM
{ PMAC_FTR_SLEEP_STATE, core99_sleep_state },
#endif
#ifdef CONFIG_SMP
{ PMAC_FTR_RESET_CPU, core99_reset_cpu },
#endif /* CONFIG_SMP */
{ PMAC_FTR_READ_GPIO, core99_read_gpio },
{ PMAC_FTR_WRITE_GPIO, core99_write_gpio },
{ 0, NULL }
};
/* RackMac
*/
static struct feature_table_entry rackmac_features[] = {
{ PMAC_FTR_SCC_ENABLE, core99_scc_enable },
{ PMAC_FTR_IDE_ENABLE, core99_ide_enable },
{ PMAC_FTR_IDE_RESET, core99_ide_reset },
{ PMAC_FTR_GMAC_ENABLE, core99_gmac_enable },
{ PMAC_FTR_GMAC_PHY_RESET, core99_gmac_phy_reset },
{ PMAC_FTR_USB_ENABLE, core99_usb_enable },
{ PMAC_FTR_1394_ENABLE, core99_firewire_enable },
{ PMAC_FTR_1394_CABLE_POWER, core99_firewire_cable_power },
{ PMAC_FTR_SLEEP_STATE, core99_sleep_state },
#ifdef CONFIG_SMP
{ PMAC_FTR_RESET_CPU, core99_reset_cpu },
#endif /* CONFIG_SMP */
{ PMAC_FTR_READ_GPIO, core99_read_gpio },
{ PMAC_FTR_WRITE_GPIO, core99_write_gpio },
{ 0, NULL }
};
/* Pangea features
*/
static struct feature_table_entry pangea_features[] = {
{ PMAC_FTR_SCC_ENABLE, core99_scc_enable },
{ PMAC_FTR_MODEM_ENABLE, pangea_modem_enable },
{ PMAC_FTR_IDE_ENABLE, core99_ide_enable },
{ PMAC_FTR_IDE_RESET, core99_ide_reset },
{ PMAC_FTR_GMAC_ENABLE, core99_gmac_enable },
{ PMAC_FTR_GMAC_PHY_RESET, core99_gmac_phy_reset },
{ PMAC_FTR_SOUND_CHIP_ENABLE, core99_sound_chip_enable },
{ PMAC_FTR_AIRPORT_ENABLE, core99_airport_enable },
{ PMAC_FTR_USB_ENABLE, core99_usb_enable },
{ PMAC_FTR_1394_ENABLE, core99_firewire_enable },
{ PMAC_FTR_1394_CABLE_POWER, core99_firewire_cable_power },
{ PMAC_FTR_SLEEP_STATE, core99_sleep_state },
{ PMAC_FTR_READ_GPIO, core99_read_gpio },
{ PMAC_FTR_WRITE_GPIO, core99_write_gpio },
{ 0, NULL }
};
/* Intrepid features
*/
static struct feature_table_entry intrepid_features[] = {
{ PMAC_FTR_SCC_ENABLE, core99_scc_enable },
{ PMAC_FTR_MODEM_ENABLE, pangea_modem_enable },
{ PMAC_FTR_IDE_ENABLE, core99_ide_enable },
{ PMAC_FTR_IDE_RESET, core99_ide_reset },
{ PMAC_FTR_GMAC_ENABLE, core99_gmac_enable },
{ PMAC_FTR_GMAC_PHY_RESET, core99_gmac_phy_reset },
{ PMAC_FTR_SOUND_CHIP_ENABLE, core99_sound_chip_enable },
{ PMAC_FTR_AIRPORT_ENABLE, core99_airport_enable },
{ PMAC_FTR_USB_ENABLE, core99_usb_enable },
{ PMAC_FTR_1394_ENABLE, core99_firewire_enable },
{ PMAC_FTR_1394_CABLE_POWER, core99_firewire_cable_power },
{ PMAC_FTR_SLEEP_STATE, core99_sleep_state },
{ PMAC_FTR_READ_GPIO, core99_read_gpio },
{ PMAC_FTR_WRITE_GPIO, core99_write_gpio },
{ PMAC_FTR_AACK_DELAY_ENABLE, intrepid_aack_delay_enable },
{ 0, NULL }
};
#else /* CONFIG_POWER4 */
/* G5 features
*/
static struct feature_table_entry g5_features[] = {
{ PMAC_FTR_GMAC_ENABLE, g5_gmac_enable },
{ PMAC_FTR_1394_ENABLE, g5_fw_enable },
{ PMAC_FTR_ENABLE_MPIC, g5_mpic_enable },
{ PMAC_FTR_GMAC_PHY_RESET, g5_eth_phy_reset },
{ PMAC_FTR_SOUND_CHIP_ENABLE, g5_i2s_enable },
#ifdef CONFIG_SMP
{ PMAC_FTR_RESET_CPU, g5_reset_cpu },
#endif /* CONFIG_SMP */
{ PMAC_FTR_READ_GPIO, core99_read_gpio },
{ PMAC_FTR_WRITE_GPIO, core99_write_gpio },
{ 0, NULL }
};
#endif /* CONFIG_POWER4 */
static struct pmac_mb_def pmac_mb_defs[] = {
#ifndef CONFIG_POWER4
/*
* Desktops
*/
{ "AAPL,8500", "PowerMac 8500/8600",
PMAC_TYPE_PSURGE, NULL,
0
},
{ "AAPL,9500", "PowerMac 9500/9600",
PMAC_TYPE_PSURGE, NULL,
0
},
{ "AAPL,7200", "PowerMac 7200",
PMAC_TYPE_PSURGE, NULL,
0
},
{ "AAPL,7300", "PowerMac 7200/7300",
PMAC_TYPE_PSURGE, NULL,
0
},
{ "AAPL,7500", "PowerMac 7500",
PMAC_TYPE_PSURGE, NULL,
0
},
{ "AAPL,ShinerESB", "Apple Network Server",
PMAC_TYPE_ANS, NULL,
0
},
{ "AAPL,e407", "Alchemy",
PMAC_TYPE_ALCHEMY, NULL,
0
},
{ "AAPL,e411", "Gazelle",
PMAC_TYPE_GAZELLE, NULL,
0
},
{ "AAPL,Gossamer", "PowerMac G3 (Gossamer)",
PMAC_TYPE_GOSSAMER, heathrow_desktop_features,
0
},
{ "AAPL,PowerMac G3", "PowerMac G3 (Silk)",
PMAC_TYPE_SILK, heathrow_desktop_features,
0
},
{ "PowerMac1,1", "Blue&White G3",
PMAC_TYPE_YOSEMITE, paddington_features,
0
},
{ "PowerMac1,2", "PowerMac G4 PCI Graphics",
PMAC_TYPE_YIKES, paddington_features,
0
},
{ "PowerMac2,1", "iMac FireWire",
PMAC_TYPE_FW_IMAC, core99_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
},
{ "PowerMac2,2", "iMac FireWire",
PMAC_TYPE_FW_IMAC, core99_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
},
{ "PowerMac3,1", "PowerMac G4 AGP Graphics",
PMAC_TYPE_SAWTOOTH, core99_features,
PMAC_MB_OLD_CORE99
},
{ "PowerMac3,2", "PowerMac G4 AGP Graphics",
PMAC_TYPE_SAWTOOTH, core99_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
},
{ "PowerMac3,3", "PowerMac G4 AGP Graphics",
PMAC_TYPE_SAWTOOTH, core99_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
},
{ "PowerMac3,4", "PowerMac G4 Silver",
PMAC_TYPE_QUICKSILVER, core99_features,
PMAC_MB_MAY_SLEEP
},
{ "PowerMac3,5", "PowerMac G4 Silver",
PMAC_TYPE_QUICKSILVER, core99_features,
PMAC_MB_MAY_SLEEP
},
{ "PowerMac3,6", "PowerMac G4 Windtunnel",
PMAC_TYPE_WINDTUNNEL, core99_features,
PMAC_MB_MAY_SLEEP,
},
{ "PowerMac4,1", "iMac \"Flower Power\"",
PMAC_TYPE_PANGEA_IMAC, pangea_features,
PMAC_MB_MAY_SLEEP
},
{ "PowerMac4,2", "Flat panel iMac",
PMAC_TYPE_FLAT_PANEL_IMAC, pangea_features,
PMAC_MB_CAN_SLEEP
},
{ "PowerMac4,4", "eMac",
PMAC_TYPE_EMAC, core99_features,
PMAC_MB_MAY_SLEEP
},
{ "PowerMac5,1", "PowerMac G4 Cube",
PMAC_TYPE_CUBE, core99_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
},
{ "PowerMac6,1", "Flat panel iMac",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP,
},
{ "PowerMac6,3", "Flat panel iMac",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP,
},
{ "PowerMac6,4", "eMac",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP,
},
{ "PowerMac10,1", "Mac mini",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP,
},
{ "iMac,1", "iMac (first generation)",
PMAC_TYPE_ORIG_IMAC, paddington_features,
0
},
/*
* Xserve's
*/
{ "RackMac1,1", "XServe",
PMAC_TYPE_RACKMAC, rackmac_features,
0,
},
{ "RackMac1,2", "XServe rev. 2",
PMAC_TYPE_RACKMAC, rackmac_features,
0,
},
/*
* Laptops
*/
{ "AAPL,3400/2400", "PowerBook 3400",
PMAC_TYPE_HOOPER, ohare_features,
PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
},
{ "AAPL,3500", "PowerBook 3500",
PMAC_TYPE_KANGA, ohare_features,
PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
},
{ "AAPL,PowerBook1998", "PowerBook Wallstreet",
PMAC_TYPE_WALLSTREET, heathrow_laptop_features,
PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
},
{ "PowerBook1,1", "PowerBook 101 (Lombard)",
PMAC_TYPE_101_PBOOK, paddington_features,
PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
},
{ "PowerBook2,1", "iBook (first generation)",
PMAC_TYPE_ORIG_IBOOK, core99_features,
PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
},
{ "PowerBook2,2", "iBook FireWire",
PMAC_TYPE_FW_IBOOK, core99_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
},
{ "PowerBook3,1", "PowerBook Pismo",
PMAC_TYPE_PISMO, core99_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
},
{ "PowerBook3,2", "PowerBook Titanium",
PMAC_TYPE_TITANIUM, core99_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
},
{ "PowerBook3,3", "PowerBook Titanium II",
PMAC_TYPE_TITANIUM2, core99_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
},
{ "PowerBook3,4", "PowerBook Titanium III",
PMAC_TYPE_TITANIUM3, core99_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
},
{ "PowerBook3,5", "PowerBook Titanium IV",
PMAC_TYPE_TITANIUM4, core99_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
},
{ "PowerBook4,1", "iBook 2",
PMAC_TYPE_IBOOK2, pangea_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
},
{ "PowerBook4,2", "iBook 2",
PMAC_TYPE_IBOOK2, pangea_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
},
{ "PowerBook4,3", "iBook 2 rev. 2",
PMAC_TYPE_IBOOK2, pangea_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
},
{ "PowerBook5,1", "PowerBook G4 17\"",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
{ "PowerBook5,2", "PowerBook G4 15\"",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
{ "PowerBook5,3", "PowerBook G4 17\"",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
{ "PowerBook5,4", "PowerBook G4 15\"",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
{ "PowerBook5,5", "PowerBook G4 17\"",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
{ "PowerBook5,6", "PowerBook G4 15\"",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
{ "PowerBook5,7", "PowerBook G4 17\"",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
{ "PowerBook5,8", "PowerBook G4 15\"",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_MOBILE,
},
{ "PowerBook5,9", "PowerBook G4 17\"",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_MOBILE,
},
{ "PowerBook6,1", "PowerBook G4 12\"",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
{ "PowerBook6,2", "PowerBook G4",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
{ "PowerBook6,3", "iBook G4",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
{ "PowerBook6,4", "PowerBook G4 12\"",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
{ "PowerBook6,5", "iBook G4",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
{ "PowerBook6,7", "iBook G4",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
{ "PowerBook6,8", "PowerBook G4 12\"",
PMAC_TYPE_UNKNOWN_INTREPID, intrepid_features,
PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
},
#else /* CONFIG_POWER4 */
{ "PowerMac7,2", "PowerMac G5",
PMAC_TYPE_POWERMAC_G5, g5_features,
0,
},
#ifdef CONFIG_PPC64
{ "PowerMac7,3", "PowerMac G5",
PMAC_TYPE_POWERMAC_G5, g5_features,
0,
},
{ "PowerMac8,1", "iMac G5",
PMAC_TYPE_IMAC_G5, g5_features,
0,
},
{ "PowerMac9,1", "PowerMac G5",
PMAC_TYPE_POWERMAC_G5_U3L, g5_features,
0,
},
{ "PowerMac11,2", "PowerMac G5 Dual Core",
PMAC_TYPE_POWERMAC_G5_U3L, g5_features,
0,
},
{ "PowerMac12,1", "iMac G5 (iSight)",
PMAC_TYPE_POWERMAC_G5_U3L, g5_features,
0,
},
{ "RackMac3,1", "XServe G5",
PMAC_TYPE_XSERVE_G5, g5_features,
0,
},
#endif /* CONFIG_PPC64 */
#endif /* CONFIG_POWER4 */
};
/*
* The toplevel feature_call callback
*/
long pmac_do_feature_call(unsigned int selector, ...)
{
struct device_node *node;
long param, value;
int i;
feature_call func = NULL;
va_list args;
if (pmac_mb.features)
for (i=0; pmac_mb.features[i].function; i++)
if (pmac_mb.features[i].selector == selector) {
func = pmac_mb.features[i].function;
break;
}
if (!func)
for (i=0; any_features[i].function; i++)
if (any_features[i].selector == selector) {
func = any_features[i].function;
break;
}
if (!func)
return -ENODEV;
va_start(args, selector);
node = (struct device_node*)va_arg(args, void*);
param = va_arg(args, long);
value = va_arg(args, long);
va_end(args);
return func(node, param, value);
}
static int __init probe_motherboard(void)
{
int i;
struct macio_chip *macio = &macio_chips[0];
const char *model = NULL;
struct device_node *dt;
int ret = 0;
/* Lookup known motherboard type in device-tree. First try an
* exact match on the "model" property, then try a "compatible"
* match is none is found.
*/
dt = of_find_node_by_name(NULL, "device-tree");
if (dt != NULL)
model = of_get_property(dt, "model", NULL);
for(i=0; model && i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
pmac_mb = pmac_mb_defs[i];
goto found;
}
}
for(i=0; i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
if (machine_is_compatible(pmac_mb_defs[i].model_string)) {
pmac_mb = pmac_mb_defs[i];
goto found;
}
}
/* Fallback to selection depending on mac-io chip type */
switch(macio->type) {
#ifndef CONFIG_POWER4
case macio_grand_central:
pmac_mb.model_id = PMAC_TYPE_PSURGE;
pmac_mb.model_name = "Unknown PowerSurge";
break;
case macio_ohare:
pmac_mb.model_id = PMAC_TYPE_UNKNOWN_OHARE;
pmac_mb.model_name = "Unknown OHare-based";
break;
case macio_heathrow:
pmac_mb.model_id = PMAC_TYPE_UNKNOWN_HEATHROW;
pmac_mb.model_name = "Unknown Heathrow-based";
pmac_mb.features = heathrow_desktop_features;
break;
case macio_paddington:
pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PADDINGTON;
pmac_mb.model_name = "Unknown Paddington-based";
pmac_mb.features = paddington_features;
break;
case macio_keylargo:
pmac_mb.model_id = PMAC_TYPE_UNKNOWN_CORE99;
pmac_mb.model_name = "Unknown Keylargo-based";
pmac_mb.features = core99_features;
break;
case macio_pangea:
pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PANGEA;
pmac_mb.model_name = "Unknown Pangea-based";
pmac_mb.features = pangea_features;
break;
case macio_intrepid:
pmac_mb.model_id = PMAC_TYPE_UNKNOWN_INTREPID;
pmac_mb.model_name = "Unknown Intrepid-based";
pmac_mb.features = intrepid_features;
break;
#else /* CONFIG_POWER4 */
case macio_keylargo2:
pmac_mb.model_id = PMAC_TYPE_UNKNOWN_K2;
pmac_mb.model_name = "Unknown K2-based";
pmac_mb.features = g5_features;
break;
case macio_shasta:
pmac_mb.model_id = PMAC_TYPE_UNKNOWN_SHASTA;
pmac_mb.model_name = "Unknown Shasta-based";
pmac_mb.features = g5_features;
break;
#endif /* CONFIG_POWER4 */
default:
ret = -ENODEV;
goto done;
}
found:
#ifndef CONFIG_POWER4
/* Fixup Hooper vs. Comet */
if (pmac_mb.model_id == PMAC_TYPE_HOOPER) {
u32 __iomem * mach_id_ptr = ioremap(0xf3000034, 4);
if (!mach_id_ptr) {
ret = -ENODEV;
goto done;
}
/* Here, I used to disable the media-bay on comet. It
* appears this is wrong, the floppy connector is actually
* a kind of media-bay and works with the current driver.
*/
if (__raw_readl(mach_id_ptr) & 0x20000000UL)
pmac_mb.model_id = PMAC_TYPE_COMET;
iounmap(mach_id_ptr);
}
/* Set default value of powersave_nap on machines that support it.
* It appears that uninorth rev 3 has a problem with it, we don't
* enable it on those. In theory, the flush-on-lock property is
* supposed to be set when not supported, but I'm not very confident
* that all Apple OF revs did it properly, I do it the paranoid way.
*/
while (uninorth_base && uninorth_rev > 3) {
struct device_node *cpus = of_find_node_by_path("/cpus");
struct device_node *np;
if (!cpus || !cpus->child) {
printk(KERN_WARNING "Can't find CPU(s) in device tree !\n");
of_node_put(cpus);
break;
}
np = cpus->child;
/* Nap mode not supported on SMP */
if (np->sibling) {
of_node_put(cpus);
break;
}
/* Nap mode not supported if flush-on-lock property is present */
if (of_get_property(np, "flush-on-lock", NULL)) {
of_node_put(cpus);
break;
}
of_node_put(cpus);
powersave_nap = 1;
printk(KERN_DEBUG "Processor NAP mode on idle enabled.\n");
break;
}
/* On CPUs that support it (750FX), lowspeed by default during
* NAP mode
*/
powersave_lowspeed = 1;
#else /* CONFIG_POWER4 */
powersave_nap = 1;
#endif /* CONFIG_POWER4 */
/* Check for "mobile" machine */
if (model && (strncmp(model, "PowerBook", 9) == 0
|| strncmp(model, "iBook", 5) == 0))
pmac_mb.board_flags |= PMAC_MB_MOBILE;
printk(KERN_INFO "PowerMac motherboard: %s\n", pmac_mb.model_name);
done:
of_node_put(dt);
return ret;
}
/* Initialize the Core99 UniNorth host bridge and memory controller
*/
static void __init probe_uninorth(void)
{
const u32 *addrp;
phys_addr_t address;
unsigned long actrl;
/* Locate core99 Uni-N */
uninorth_node = of_find_node_by_name(NULL, "uni-n");
uninorth_maj = 1;
/* Locate G5 u3 */
if (uninorth_node == NULL) {
uninorth_node = of_find_node_by_name(NULL, "u3");
uninorth_maj = 3;
}
/* Locate G5 u4 */
if (uninorth_node == NULL) {
uninorth_node = of_find_node_by_name(NULL, "u4");
uninorth_maj = 4;
}
if (uninorth_node == NULL) {
uninorth_maj = 0;
return;
}
addrp = of_get_property(uninorth_node, "reg", NULL);
if (addrp == NULL)
return;
address = of_translate_address(uninorth_node, addrp);
if (address == 0)
return;
uninorth_base = ioremap(address, 0x40000);
uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
if (uninorth_maj == 3 || uninorth_maj == 4)
u3_ht_base = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
printk(KERN_INFO "Found %s memory controller & host bridge"
" @ 0x%08x revision: 0x%02x\n", uninorth_maj == 3 ? "U3" :
uninorth_maj == 4 ? "U4" : "UniNorth",
(unsigned int)address, uninorth_rev);
printk(KERN_INFO "Mapped at 0x%08lx\n", (unsigned long)uninorth_base);
/* Set the arbitrer QAck delay according to what Apple does
*/
if (uninorth_rev < 0x11) {
actrl = UN_IN(UNI_N_ARB_CTRL) & ~UNI_N_ARB_CTRL_QACK_DELAY_MASK;
actrl |= ((uninorth_rev < 3) ? UNI_N_ARB_CTRL_QACK_DELAY105 :
UNI_N_ARB_CTRL_QACK_DELAY) <<
UNI_N_ARB_CTRL_QACK_DELAY_SHIFT;
UN_OUT(UNI_N_ARB_CTRL, actrl);
}
/* Some more magic as done by them in recent MacOS X on UniNorth
* revs 1.5 to 2.O and Pangea. Seem to toggle the UniN Maxbus/PCI
* memory timeout
*/
if ((uninorth_rev >= 0x11 && uninorth_rev <= 0x24) ||
uninorth_rev == 0xc0)
UN_OUT(0x2160, UN_IN(0x2160) & 0x00ffffff);
}
static void __init probe_one_macio(const char *name, const char *compat, int type)
{
struct device_node* node;
int i;
volatile u32 __iomem *base;
const u32 *addrp, *revp;
phys_addr_t addr;
u64 size;
for (node = NULL; (node = of_find_node_by_name(node, name)) != NULL;) {
if (!compat)
break;
if (of_device_is_compatible(node, compat))
break;
}
if (!node)
return;
for(i=0; i<MAX_MACIO_CHIPS; i++) {
if (!macio_chips[i].of_node)
break;
if (macio_chips[i].of_node == node)
return;
}
if (i >= MAX_MACIO_CHIPS) {
printk(KERN_ERR "pmac_feature: Please increase MAX_MACIO_CHIPS !\n");
printk(KERN_ERR "pmac_feature: %s skipped\n", node->full_name);
return;
}
addrp = of_get_pci_address(node, 0, &size, NULL);
if (addrp == NULL) {
printk(KERN_ERR "pmac_feature: %s: can't find base !\n",
node->full_name);
return;
}
addr = of_translate_address(node, addrp);
if (addr == 0) {
printk(KERN_ERR "pmac_feature: %s, can't translate base !\n",
node->full_name);
return;
}
base = ioremap(addr, (unsigned long)size);
if (!base) {
printk(KERN_ERR "pmac_feature: %s, can't map mac-io chip !\n",
node->full_name);
return;
}
if (type == macio_keylargo || type == macio_keylargo2) {
const u32 *did = of_get_property(node, "device-id", NULL);
if (*did == 0x00000025)
type = macio_pangea;
if (*did == 0x0000003e)
type = macio_intrepid;
if (*did == 0x0000004f)
type = macio_shasta;
}
macio_chips[i].of_node = node;
macio_chips[i].type = type;
macio_chips[i].base = base;
macio_chips[i].flags = MACIO_FLAG_SCCB_ON | MACIO_FLAG_SCCB_ON;
macio_chips[i].name = macio_names[type];
revp = of_get_property(node, "revision-id", NULL);
if (revp)
macio_chips[i].rev = *revp;
printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n",
macio_names[type], macio_chips[i].rev, macio_chips[i].base);
}
static int __init
probe_macios(void)
{
/* Warning, ordering is important */
probe_one_macio("gc", NULL, macio_grand_central);
probe_one_macio("ohare", NULL, macio_ohare);
probe_one_macio("pci106b,7", NULL, macio_ohareII);
probe_one_macio("mac-io", "keylargo", macio_keylargo);
probe_one_macio("mac-io", "paddington", macio_paddington);
probe_one_macio("mac-io", "gatwick", macio_gatwick);
probe_one_macio("mac-io", "heathrow", macio_heathrow);
probe_one_macio("mac-io", "K2-Keylargo", macio_keylargo2);
/* Make sure the "main" macio chip appear first */
if (macio_chips[0].type == macio_gatwick
&& macio_chips[1].type == macio_heathrow) {
struct macio_chip temp = macio_chips[0];
macio_chips[0] = macio_chips[1];
macio_chips[1] = temp;
}
if (macio_chips[0].type == macio_ohareII
&& macio_chips[1].type == macio_ohare) {
struct macio_chip temp = macio_chips[0];
macio_chips[0] = macio_chips[1];
macio_chips[1] = temp;
}
macio_chips[0].lbus.index = 0;
macio_chips[1].lbus.index = 1;
return (macio_chips[0].of_node == NULL) ? -ENODEV : 0;
}
static void __init
initial_serial_shutdown(struct device_node *np)
{
int len;
const struct slot_names_prop {
int count;
char name[1];
} *slots;
const char *conn;
int port_type = PMAC_SCC_ASYNC;
int modem = 0;
slots = of_get_property(np, "slot-names", &len);
conn = of_get_property(np, "AAPL,connector", &len);
if (conn && (strcmp(conn, "infrared") == 0))
port_type = PMAC_SCC_IRDA;
else if (of_device_is_compatible(np, "cobalt"))
modem = 1;
else if (slots && slots->count > 0) {
if (strcmp(slots->name, "IrDA") == 0)
port_type = PMAC_SCC_IRDA;
else if (strcmp(slots->name, "Modem") == 0)
modem = 1;
}
if (modem)
pmac_call_feature(PMAC_FTR_MODEM_ENABLE, np, 0, 0);
pmac_call_feature(PMAC_FTR_SCC_ENABLE, np, port_type, 0);
}
static void __init
set_initial_features(void)
{
struct device_node *np;
/* That hack appears to be necessary for some StarMax motherboards
* but I'm not too sure it was audited for side-effects on other
* ohare based machines...
* Since I still have difficulties figuring the right way to
* differenciate them all and since that hack was there for a long
* time, I'll keep it around
*/
if (macio_chips[0].type == macio_ohare) {
struct macio_chip *macio = &macio_chips[0];
np = of_find_node_by_name(NULL, "via-pmu");
if (np)
MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
else
MACIO_OUT32(OHARE_FCR, STARMAX_FEATURES);
of_node_put(np);
} else if (macio_chips[1].type == macio_ohare) {
struct macio_chip *macio = &macio_chips[1];
MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
}
#ifdef CONFIG_POWER4
if (macio_chips[0].type == macio_keylargo2 ||
macio_chips[0].type == macio_shasta) {
#ifndef CONFIG_SMP
/* On SMP machines running UP, we have the second CPU eating
* bus cycles. We need to take it off the bus. This is done
* from pmac_smp for SMP kernels running on one CPU
*/
np = of_find_node_by_type(NULL, "cpu");
if (np != NULL)
np = of_find_node_by_type(np, "cpu");
if (np != NULL) {
g5_phy_disable_cpu1();
of_node_put(np);
}
#endif /* CONFIG_SMP */
/* Enable GMAC for now for PCI probing. It will be disabled
* later on after PCI probe
*/
np = of_find_node_by_name(NULL, "ethernet");
while(np) {
if (of_device_is_compatible(np, "K2-GMAC"))
g5_gmac_enable(np, 0, 1);
np = of_find_node_by_name(np, "ethernet");
}
/* Enable FW before PCI probe. Will be disabled later on
* Note: We should have a batter way to check that we are
* dealing with uninorth internal cell and not a PCI cell
* on the external PCI. The code below works though.
*/
np = of_find_node_by_name(NULL, "firewire");
while(np) {
if (of_device_is_compatible(np, "pci106b,5811")) {
macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
g5_fw_enable(np, 0, 1);
}
np = of_find_node_by_name(np, "firewire");
}
}
#else /* CONFIG_POWER4 */
if (macio_chips[0].type == macio_keylargo ||
macio_chips[0].type == macio_pangea ||
macio_chips[0].type == macio_intrepid) {
/* Enable GMAC for now for PCI probing. It will be disabled
* later on after PCI probe
*/
np = of_find_node_by_name(NULL, "ethernet");
while(np) {
if (np->parent
&& of_device_is_compatible(np->parent, "uni-north")
&& of_device_is_compatible(np, "gmac"))
core99_gmac_enable(np, 0, 1);
np = of_find_node_by_name(np, "ethernet");
}
/* Enable FW before PCI probe. Will be disabled later on
* Note: We should have a batter way to check that we are
* dealing with uninorth internal cell and not a PCI cell
* on the external PCI. The code below works though.
*/
np = of_find_node_by_name(NULL, "firewire");
while(np) {
if (np->parent
&& of_device_is_compatible(np->parent, "uni-north")
&& (of_device_is_compatible(np, "pci106b,18") ||
of_device_is_compatible(np, "pci106b,30") ||
of_device_is_compatible(np, "pci11c1,5811"))) {
macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
core99_firewire_enable(np, 0, 1);
}
np = of_find_node_by_name(np, "firewire");
}
/* Enable ATA-100 before PCI probe. */
np = of_find_node_by_name(NULL, "ata-6");
while(np) {
if (np->parent
&& of_device_is_compatible(np->parent, "uni-north")
&& of_device_is_compatible(np, "kauai-ata")) {
core99_ata100_enable(np, 1);
}
np = of_find_node_by_name(np, "ata-6");
}
/* Switch airport off */
for_each_node_by_name(np, "radio") {
if (np && np->parent == macio_chips[0].of_node) {
macio_chips[0].flags |= MACIO_FLAG_AIRPORT_ON;
core99_airport_enable(np, 0, 0);
}
}
of_node_put(np);
}
/* On all machines that support sound PM, switch sound off */
if (macio_chips[0].of_node)
pmac_do_feature_call(PMAC_FTR_SOUND_CHIP_ENABLE,
macio_chips[0].of_node, 0, 0);
/* While on some desktop G3s, we turn it back on */
if (macio_chips[0].of_node && macio_chips[0].type == macio_heathrow
&& (pmac_mb.model_id == PMAC_TYPE_GOSSAMER ||
pmac_mb.model_id == PMAC_TYPE_SILK)) {
struct macio_chip *macio = &macio_chips[0];
MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
}
#endif /* CONFIG_POWER4 */
/* On all machines, switch modem & serial ports off */
for_each_node_by_name(np, "ch-a")
initial_serial_shutdown(np);
of_node_put(np);
for_each_node_by_name(np, "ch-b")
initial_serial_shutdown(np);
of_node_put(np);
}
void __init
pmac_feature_init(void)
{
/* Detect the UniNorth memory controller */
probe_uninorth();
/* Probe mac-io controllers */
if (probe_macios()) {
printk(KERN_WARNING "No mac-io chip found\n");
return;
}
/* Probe machine type */
if (probe_motherboard())
printk(KERN_WARNING "Unknown PowerMac !\n");
/* Set some initial features (turn off some chips that will
* be later turned on)
*/
set_initial_features();
}
#if 0
static void dump_HT_speeds(char *name, u32 cfg, u32 frq)
{
int freqs[16] = { 200,300,400,500,600,800,1000,0,0,0,0,0,0,0,0,0 };
int bits[8] = { 8,16,0,32,2,4,0,0 };
int freq = (frq >> 8) & 0xf;
if (freqs[freq] == 0)
printk("%s: Unknown HT link frequency %x\n", name, freq);
else
printk("%s: %d MHz on main link, (%d in / %d out) bits width\n",
name, freqs[freq],
bits[(cfg >> 28) & 0x7], bits[(cfg >> 24) & 0x7]);
}
void __init pmac_check_ht_link(void)
{
u32 ufreq, freq, ucfg, cfg;
struct device_node *pcix_node;
u8 px_bus, px_devfn;
struct pci_controller *px_hose;
(void)in_be32(u3_ht_base + U3_HT_LINK_COMMAND);
ucfg = cfg = in_be32(u3_ht_base + U3_HT_LINK_CONFIG);
ufreq = freq = in_be32(u3_ht_base + U3_HT_LINK_FREQ);
dump_HT_speeds("U3 HyperTransport", cfg, freq);
pcix_node = of_find_compatible_node(NULL, "pci", "pci-x");
if (pcix_node == NULL) {
printk("No PCI-X bridge found\n");
return;
}
if (pci_device_from_OF_node(pcix_node, &px_bus, &px_devfn) != 0) {
printk("PCI-X bridge found but not matched to pci\n");
return;
}
px_hose = pci_find_hose_for_OF_device(pcix_node);
if (px_hose == NULL) {
printk("PCI-X bridge found but not matched to host\n");
return;
}
early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg);
early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq);
dump_HT_speeds("PCI-X HT Uplink", cfg, freq);
early_read_config_dword(px_hose, px_bus, px_devfn, 0xc8, &cfg);
early_read_config_dword(px_hose, px_bus, px_devfn, 0xd0, &freq);
dump_HT_speeds("PCI-X HT Downlink", cfg, freq);
}
#endif /* 0 */
/*
* Early video resume hook
*/
static void (*pmac_early_vresume_proc)(void *data);
static void *pmac_early_vresume_data;
void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
{
if (!machine_is(powermac))
return;
preempt_disable();
pmac_early_vresume_proc = proc;
pmac_early_vresume_data = data;
preempt_enable();
}
EXPORT_SYMBOL(pmac_set_early_video_resume);
void pmac_call_early_video_resume(void)
{
if (pmac_early_vresume_proc)
pmac_early_vresume_proc(pmac_early_vresume_data);
}
/*
* AGP related suspend/resume code
*/
static struct pci_dev *pmac_agp_bridge;
static int (*pmac_agp_suspend)(struct pci_dev *bridge);
static int (*pmac_agp_resume)(struct pci_dev *bridge);
void pmac_register_agp_pm(struct pci_dev *bridge,
int (*suspend)(struct pci_dev *bridge),
int (*resume)(struct pci_dev *bridge))
{
if (suspend || resume) {
pmac_agp_bridge = bridge;
pmac_agp_suspend = suspend;
pmac_agp_resume = resume;
return;
}
if (bridge != pmac_agp_bridge)
return;
pmac_agp_suspend = pmac_agp_resume = NULL;
return;
}
EXPORT_SYMBOL(pmac_register_agp_pm);
void pmac_suspend_agp_for_card(struct pci_dev *dev)
{
if (pmac_agp_bridge == NULL || pmac_agp_suspend == NULL)
return;
if (pmac_agp_bridge->bus != dev->bus)
return;
pmac_agp_suspend(pmac_agp_bridge);
}
EXPORT_SYMBOL(pmac_suspend_agp_for_card);
void pmac_resume_agp_for_card(struct pci_dev *dev)
{
if (pmac_agp_bridge == NULL || pmac_agp_resume == NULL)
return;
if (pmac_agp_bridge->bus != dev->bus)
return;
pmac_agp_resume(pmac_agp_bridge);
}
EXPORT_SYMBOL(pmac_resume_agp_for_card);
int pmac_get_uninorth_variant(void)
{
return uninorth_maj;
}
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