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* arch/ppc/kernel/feature.c
*
* Copyright (C) 1996 Paul Mackerras (paulus@cs.anu.edu.au)
* Ben. Herrenschmidt (bh40@calva.net)
*
* 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.
*
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <asm/spinlock.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/feature.h>
#undef DEBUG_FEATURE
#define MAX_FEATURE_CONTROLLERS 2
#define MAX_FEATURE_OFFSET 0x100
#define FREG(c,r) (&(((c)->reg)[(r)>>2]))
/* Keylargo reg. access. */
#define KL_FCR(r) (keylargo_base + ((r) >> 2))
#define KL_IN(r) (in_le32(KL_FCR(r)))
#define KL_OUT(r,v) (out_le32(KL_FCR(r), (v)))
#define KL_BIS(r,v) (KL_OUT((r), KL_IN(r) | (v)))
#define KL_BIC(r,v) (KL_OUT((r), KL_IN(r) & ~(v)))
/* Uni-N reg. access. Note that Uni-N regs are big endian */
#define UN_REG(r) (uninorth_base + ((r) >> 2))
#define UN_IN(r) (in_be32(UN_REG(r)))
#define UN_OUT(r,v) (out_be32(UN_REG(r), (v)))
#define UN_BIS(r,v) (UN_OUT((r), UN_IN(r) | (v)))
#define UN_BIC(r,v) (UN_OUT((r), UN_IN(r) & ~(v)))
typedef struct feature_bit {
int reg; /* reg. offset from mac-io base */
unsigned int polarity; /* 0 = normal, 1 = inverse */
unsigned int mask; /* bit mask */
} fbit;
/* Those features concern for OHare-based PowerBooks (2400, 3400, 3500)
*/
static fbit feature_bits_ohare_pbook[] = {
{0x38,0,0}, /* FEATURE_null */
{0x38,0,OH_SCC_RESET}, /* FEATURE_Serial_reset */
{0x38,0,OH_SCC_ENABLE}, /* FEATURE_Serial_enable */
{0x38,0,OH_SCCA_IO}, /* FEATURE_Serial_IO_A */
{0x38,0,OH_SCCB_IO}, /* FEATURE_Serial_IO_B */
{0x38,0,OH_FLOPPY_ENABLE}, /* FEATURE_SWIM3_enable */
{0x38,0,OH_MESH_ENABLE}, /* FEATURE_MESH_enable */
{0x38,0,OH_IDE0_ENABLE}, /* FEATURE_IDE0_enable */
{0x38,1,OH_IDE0_RESET_N}, /* FEATURE_IDE0_reset */
{0x38,0,OH_IOBUS_ENABLE}, /* FEATURE_IOBUS_enable */
{0x38,1,OH_BAY_RESET_N}, /* FEATURE_Mediabay_reset */
{0x38,1,OH_BAY_POWER_N}, /* FEATURE_Mediabay_power */
{0x38,0,OH_BAY_PCI_ENABLE}, /* FEATURE_Mediabay_PCI_enable */
{0x38,0,OH_BAY_IDE_ENABLE}, /* FEATURE_IDE1_enable */
{0x38,1,OH_IDE1_RESET_N}, /* FEATURE_IDE1_reset */
{0x38,0,OH_BAY_FLOPPY_ENABLE}, /* FEATURE_Mediabay_floppy_enable */
{0x38,0,0}, /* FEATURE_BMac_reset */
{0x38,0,0}, /* FEATURE_BMac_IO_enable */
{0x38,0,0}, /* FEATURE_Modem_power */
{0x38,0,0}, /* FEATURE_Slow_SCC_PCLK */
{0x38,0,0}, /* FEATURE_Sound_Power */
{0x38,0,0}, /* FEATURE_Sound_CLK_Enable */
{0x38,0,0}, /* FEATURE_IDE2_enable */
{0x38,0,0}, /* FEATURE_IDE2_reset */
{0x38,0,0}, /* FEATURE_Mediabay_IDE_switch */
{0x38,0,0}, /* FEATURE_Mediabay_content */
{0x38,0,0}, /* FEATURE_Airport_reset */
};
/* Those bits concern heathrow-based desktop machines (Beige G3s). We have removed
* the SCC related bits and init them once. They have proven to occasionally cause
* problems with the desktop units.
*/
static fbit feature_bits_heathrow[] = {
{0x38,0,0}, /* FEATURE_null */
{0x38,0,0}, /* FEATURE_Serial_reset */
{0x38,0,0}, /* FEATURE_Serial_enable */
{0x38,0,0}, /* FEATURE_Serial_IO_A */
{0x38,0,0}, /* FEATURE_Serial_IO_B */
{0x38,0,HRW_SWIM_ENABLE}, /* FEATURE_SWIM3_enable */
{0x38,0,HRW_MESH_ENABLE}, /* FEATURE_MESH_enable */
{0x38,0,HRW_IDE0_ENABLE}, /* FEATURE_IDE0_enable */
{0x38,1,HRW_IDE0_RESET_N}, /* FEATURE_IDE0_reset */
{0x38,0,HRW_IOBUS_ENABLE}, /* FEATURE_IOBUS_enable */
{0x38,1,0}, /* FEATURE_Mediabay_reset */
{0x38,1,0}, /* FEATURE_Mediabay_power */
{0x38,0,0}, /* FEATURE_Mediabay_PCI_enable */
{0x38,0,HRW_BAY_IDE_ENABLE}, /* FEATURE_IDE1_enable */
{0x38,1,HRW_IDE1_RESET_N}, /* FEATURE_IDE1_reset */
{0x38,0,0}, /* FEATURE_Mediabay_floppy_enable */
{0x38,0,HRW_BMAC_RESET}, /* FEATURE_BMac_reset */
{0x38,0,HRW_BMAC_IO_ENABLE}, /* FEATURE_BMac_IO_enable */
{0x38,1,0}, /* FEATURE_Modem_power */
{0x38,0,HRW_SLOW_SCC_PCLK}, /* FEATURE_Slow_SCC_PCLK */
{0x38,1,0}, /* FEATURE_Sound_Power */
{0x38,0,0}, /* FEATURE_Sound_CLK_Enable */
{0x38,0,0}, /* FEATURE_IDE2_enable */
{0x38,0,0}, /* FEATURE_IDE2_reset */
{0x38,0,0}, /* FEATURE_Mediabay_IDE_switch */
{0x38,0,0}, /* FEATURE_Mediabay_content */
{0x38,0,0}, /* FEATURE_Airport_reset */
};
/* Those bits concern heathrow-based PowerBooks (wallstreet/mainstreet).
* Heathrow-based desktop macs (Beige G3s) are _not_ handled here
*/
static fbit feature_bits_wallstreet[] = {
{0x38,0,0}, /* FEATURE_null */
{0x38,0,HRW_RESET_SCC}, /* FEATURE_Serial_reset */
{0x38,0,HRW_SCC_ENABLE}, /* FEATURE_Serial_enable */
{0x38,0,HRW_SCCA_IO}, /* FEATURE_Serial_IO_A */
{0x38,0,HRW_SCCB_IO}, /* FEATURE_Serial_IO_B */
{0x38,0,HRW_SWIM_ENABLE}, /* FEATURE_SWIM3_enable */
{0x38,0,HRW_MESH_ENABLE}, /* FEATURE_MESH_enable */
{0x38,0,HRW_IDE0_ENABLE}, /* FEATURE_IDE0_enable */
{0x38,1,HRW_IDE0_RESET_N}, /* FEATURE_IDE0_reset */
{0x38,0,HRW_IOBUS_ENABLE}, /* FEATURE_IOBUS_enable */
{0x38,1,HRW_BAY_RESET_N}, /* FEATURE_Mediabay_reset */
{0x38,1,HRW_BAY_POWER_N}, /* FEATURE_Mediabay_power */
{0x38,0,HRW_BAY_PCI_ENABLE}, /* FEATURE_Mediabay_PCI_enable */
{0x38,0,HRW_BAY_IDE_ENABLE}, /* FEATURE_IDE1_enable */
{0x38,1,HRW_IDE1_RESET_N}, /* FEATURE_IDE1_reset */
{0x38,0,HRW_BAY_FLOPPY_ENABLE}, /* FEATURE_Mediabay_floppy_enable */
{0x38,0,HRW_BMAC_RESET}, /* FEATURE_BMac_reset */
{0x38,0,HRW_BMAC_IO_ENABLE}, /* FEATURE_BMac_IO_enable */
{0x38,1,HRW_MODEM_POWER_N}, /* FEATURE_Modem_power */
{0x38,0,HRW_SLOW_SCC_PCLK}, /* FEATURE_Slow_SCC_PCLK */
{0x38,1,HRW_SOUND_POWER_N}, /* FEATURE_Sound_Power */
{0x38,0,HRW_SOUND_CLK_ENABLE}, /* FEATURE_Sound_CLK_Enable */
{0x38,0,0}, /* FEATURE_IDE2_enable */
{0x38,0,0}, /* FEATURE_IDE2_reset */
{0x38,0,0}, /* FEATURE_Mediabay_IDE_switch */
{0x38,0,0}, /* FEATURE_Mediabay_content */
{0x38,0,0}, /* FEATURE_Airport_reset */
};
/*
* Those bits are from a 1999 G3 PowerBook, with a paddington chip.
* Mostly the same as the heathrow. They are used on both PowerBooks
* and desktop machines using the paddington chip
*/
static fbit feature_bits_paddington[] = {
{0x38,0,0}, /* FEATURE_null */
{0x38,0,PADD_RESET_SCC}, /* FEATURE_Serial_reset */
{0x38,0,HRW_SCC_ENABLE}, /* FEATURE_Serial_enable */
{0x38,0,HRW_SCCA_IO}, /* FEATURE_Serial_IO_A */
{0x38,0,HRW_SCCB_IO}, /* FEATURE_Serial_IO_B */
{0x38,0,HRW_SWIM_ENABLE}, /* FEATURE_SWIM3_enable */
{0x38,0,HRW_MESH_ENABLE}, /* FEATURE_MESH_enable */
{0x38,0,HRW_IDE0_ENABLE}, /* FEATURE_IDE0_enable */
{0x38,1,HRW_IDE0_RESET_N}, /* FEATURE_IDE0_reset */
{0x38,0,HRW_IOBUS_ENABLE}, /* FEATURE_IOBUS_enable */
{0x38,1,HRW_BAY_RESET_N}, /* FEATURE_Mediabay_reset */
{0x38,1,HRW_BAY_POWER_N}, /* FEATURE_Mediabay_power */
{0x38,0,HRW_BAY_PCI_ENABLE}, /* FEATURE_Mediabay_PCI_enable */
{0x38,0,HRW_BAY_IDE_ENABLE}, /* FEATURE_IDE1_enable */
{0x38,1,HRW_IDE1_RESET_N}, /* FEATURE_IDE1_reset */
{0x38,0,HRW_BAY_FLOPPY_ENABLE}, /* FEATURE_Mediabay_floppy_enable */
{0x38,0,HRW_BMAC_RESET}, /* FEATURE_BMac_reset */
{0x38,0,HRW_BMAC_IO_ENABLE}, /* FEATURE_BMac_IO_enable */
{0x38,1,PADD_MODEM_POWER_N}, /* FEATURE_Modem_power */
{0x38,0,HRW_SLOW_SCC_PCLK}, /* FEATURE_Slow_SCC_PCLK */
{0x38,1,HRW_SOUND_POWER_N}, /* FEATURE_Sound_Power */
{0x38,0,HRW_SOUND_CLK_ENABLE}, /* FEATURE_Sound_CLK_Enable */
{0x38,0,0}, /* FEATURE_IDE2_enable */
{0x38,0,0}, /* FEATURE_IDE2_reset */
{0x38,0,0}, /* FEATURE_Mediabay_IDE_switch */
{0x38,0,0}, /* FEATURE_Mediabay_content */
{0x38,0,0}, /* FEATURE_Airport_reset */
};
/* Those bits are for Core99 machines (iBook,G4,iMacSL/DV,Pismo,...).
* Note: Different sets may be needed for iBook, especially for sound
*/
static fbit feature_bits_keylargo[] = {
{0x38,0,0}, /* FEATURE_null */
{0x38,0,KL0_SCC_RESET}, /* FEATURE_Serial_reset */
{0x38,0,KL0_SERIAL_ENABLE}, /* FEATURE_Serial_enable */
{0x38,0,KL0_SCC_A_INTF_ENABLE}, /* FEATURE_Serial_IO_A */
{0x38,0,KL0_SCC_B_INTF_ENABLE}, /* FEATURE_Serial_IO_B */
{0x38,0,0}, /* FEATURE_SWIM3_enable */
{0x38,0,0}, /* FEATURE_MESH_enable */
{0x3c,0,0}, /* FEATURE_IDE0_enable */
{0x3c,1,KL1_EIDE0_RESET_N}, /* FEATURE_IDE0_reset */
{0x38,0,0}, /* FEATURE_IOBUS_enable */
{0x34,1,0x00000200}, /* FEATURE_Mediabay_reset */
{0x34,1,0x00000400}, /* FEATURE_Mediabay_power */
{0x38,0,0}, /* FEATURE_Mediabay_PCI_enable */
{0x3c,0,0x0}, /* FEATURE_IDE1_enable */
{0x3c,1,KL1_EIDE1_RESET_N}, /* FEATURE_IDE1_reset */
{0x38,0,0}, /* FEATURE_Mediabay_floppy_enable */
{0x38,0,0}, /* FEATURE_BMac_reset */
{0x38,0,0}, /* FEATURE_BMac_IO_enable */
{0x40,1,KL2_MODEM_POWER_N}, /* FEATURE_Modem_power */
{0x38,0,0}, /* FEATURE_Slow_SCC_PCLK */
{0x38,0,0}, /* FEATURE_Sound_Power */
{0x38,0,0}, /* FEATURE_Sound_CLK_Enable */
{0x38,0,0}, /* FEATURE_IDE2_enable */
{0x3c,1,KL1_UIDE_RESET_N}, /* FEATURE_IDE2_reset */
{0x34,0,KL_MBCR_MBDEV_ENABLE}, /* FEATURE_Mediabay_IDE_switch */
{0x34,0,0x00000100}, /* FEATURE_Mediabay_content */
{0x40,1,KL2_AIRPORT_RESET_N}, /* FEATURE_Airport_reset */
};
/* definition of a feature controller object */
struct feature_controller {
fbit* bits;
volatile u32* reg;
struct device_node* device;
spinlock_t lock;
};
/* static functions */
static struct feature_controller*
feature_add_controller(struct device_node *controller_device, fbit* bits);
static struct feature_controller*
feature_lookup_controller(struct device_node *device);
static void uninorth_init(void);
static void keylargo_init(void);
#ifdef CONFIG_PMAC_PBOOK
static void heathrow_prepare_for_sleep(struct feature_controller* ctrler);
static void heathrow_wakeup(struct feature_controller* ctrler);
static void core99_prepare_for_sleep(struct feature_controller* ctrler);
static void core99_wake_up(struct feature_controller* ctrler);
#endif /* CONFIG_PMAC_PBOOK */
/* static variables */
static struct feature_controller controllers[MAX_FEATURE_CONTROLLERS];
static int controller_count = 0;
/* Core99 stuffs */
static volatile u32* uninorth_base;
static volatile u32* keylargo_base;
static struct feature_controller* keylargo;
static int uninorth_rev;
static int keylargo_rev;
static u32 board_features;
#define FTR_NEED_OPENPIC_TWEAK 0x00000001
static struct board_features_t {
char* compatible;
u32 features;
} board_features_datas[] __init =
{
{ "PowerMac2,1", 0 }, /* iMac ? */
{ "PowerMac2,2", 0 }, /* iMac ? */
{ "PowerMac3,1", FTR_NEED_OPENPIC_TWEAK }, /* Sawtooth (G4) */
{ "PowerMac3,3", 0 }, /* Dual G4 or Cube ? */
{ "PowerMac5,1", 0 }, /* Dual G4 or Cube ? */
{ "PowerBook2,1", 0 }, /* iBook */
{ "PowerBook2,2", 0 }, /* iBook FireWire ? */
{ "PowerBook3,1", 0 }, /* PowerBook 2000 (Pismo) */
{ NULL, 0 }
};
void
feature_init(void)
{
struct device_node *np;
u32* rev;
int i;
/* Figure out motherboard type & options */
for(i=0;board_features_datas[i].compatible;i++)
if (machine_is_compatible(board_features_datas[i].compatible)) {
board_features = board_features_datas[i].features;
break;
}
/* Track those poor mac-io's */
np = find_devices("mac-io");
while (np != NULL) {
/* KeyLargo contains several (5 ?) FCR registers in mac-io,
* plus some gpio's which could eventually be handled here.
*/
if (device_is_compatible(np, "Keylargo")) {
struct feature_controller* ctrler =
feature_add_controller(np, feature_bits_keylargo);
if (ctrler) {
keylargo = ctrler;
keylargo_base = ctrler->reg;
rev = (u32 *)get_property(ctrler->device, "revision-id", NULL);
if (rev)
keylargo_rev = *rev;
}
} else if (device_is_compatible(np, "paddington")) {
feature_add_controller(np, feature_bits_paddington);
} else if (machine_is_compatible("AAPL,PowerBook1998")) {
feature_add_controller(np, feature_bits_wallstreet);
} else {
struct feature_controller* ctrler =
feature_add_controller(np, feature_bits_heathrow);
if (ctrler)
out_le32(FREG(ctrler,HEATHROW_FEATURE_REG),
in_le32(FREG(ctrler,HEATHROW_FEATURE_REG)) | HRW_DEFAULTS);
}
np = np->next;
}
if (controller_count == 0)
{
np = find_devices("ohare");
if (np) {
if (find_devices("via-pmu") != NULL)
feature_add_controller(np, feature_bits_ohare_pbook);
else
/* else not sure; maybe this is a Starmax? */
feature_add_controller(np, NULL);
}
}
/* Locate core99 Uni-N */
np = find_devices("uni-n");
if (np && np->n_addrs > 0) {
uninorth_base = ioremap(np->addrs[0].address, 0x1000);
uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
}
if (uninorth_base && keylargo_base)
printk("Uni-N revision: %d, KeyLargo revision: %d\n",
uninorth_rev, keylargo_rev);
if (uninorth_base)
uninorth_init();
if (keylargo_base)
keylargo_init();
if (controller_count)
printk(KERN_INFO "Registered %d feature controller(s)\n", controller_count);
#ifdef CONFIG_PMAC_PBOOK
#ifdef CONFIG_DMASOUND_MODULE
/* On PowerBooks, we disable the sound chip when dmasound is a module */
if (controller_count && find_devices("via-pmu") != NULL) {
feature_clear(controllers[0].device, FEATURE_Sound_power);
feature_clear(controllers[0].device, FEATURE_Sound_CLK_enable);
}
#endif
#endif
}
static struct feature_controller*
feature_add_controller(struct device_node *controller_device, fbit* bits)
{
struct feature_controller* controller;
if (controller_count >= MAX_FEATURE_CONTROLLERS) {
printk(KERN_INFO "Feature controller %s skipped(MAX:%d)\n",
controller_device->full_name, MAX_FEATURE_CONTROLLERS);
return NULL;
}
controller = &controllers[controller_count];
controller->bits = bits;
controller->device = controller_device;
if (controller_device->n_addrs == 0) {
printk(KERN_ERR "No addresses for %s\n",
controller_device->full_name);
return NULL;
}
/* We remap the entire mac-io here. Normally, this will just
* give us back our already existing BAT mapping
*/
controller->reg = (volatile u32 *)ioremap(
controller_device->addrs[0].address,
controller_device->addrs[0].size);
if (bits == NULL) {
printk(KERN_INFO "Twiddling the magic ohare bits\n");
out_le32(FREG(controller,OHARE_FEATURE_REG), STARMAX_FEATURES);
return NULL;
}
spin_lock_init(&controller->lock);
controller_count++;
return controller;
}
static struct feature_controller*
feature_lookup_controller(struct device_node *device)
{
int i;
if (device == NULL)
return NULL;
while(device)
{
for (i=0; i<controller_count; i++)
if (device == controllers[i].device)
return &controllers[i];
device = device->parent;
}
#ifdef DEBUG_FEATURE
printk("feature: <%s> not found on any controller\n",
device->name);
#endif
return NULL;
}
int
feature_set(struct device_node* device, enum system_feature f)
{
struct feature_controller* controller;
unsigned long flags;
unsigned long value;
fbit* bit;
if (f >= FEATURE_last)
return -EINVAL;
controller = feature_lookup_controller(device);
if (!controller)
return -ENODEV;
bit = &controller->bits[f];
if (!bit->mask)
return -EINVAL;
#ifdef DEBUG_FEATURE
printk("feature: <%s> setting feature %d in controller @0x%x\n",
device->name, (int)f, (unsigned int)controller->reg);
#endif
spin_lock_irqsave(&controller->lock, flags);
value = in_le32(FREG(controller, bit->reg));
value = bit->polarity ? (value & ~bit->mask) : (value | bit->mask);
out_le32(FREG(controller, bit->reg), value);
(void)in_le32(FREG(controller, bit->reg));
spin_unlock_irqrestore(&controller->lock, flags);
return 0;
}
int
feature_clear(struct device_node* device, enum system_feature f)
{
struct feature_controller* controller;
unsigned long flags;
unsigned long value;
fbit* bit;
if (f >= FEATURE_last)
return -EINVAL;
controller = feature_lookup_controller(device);
if (!controller)
return -ENODEV;
bit = &controller->bits[f];
if (!bit->mask)
return -EINVAL;
#ifdef DEBUG_FEATURE
printk("feature: <%s> clearing feature %d in controller @0x%x\n",
device->name, (int)f, (unsigned int)controller->reg);
#endif
spin_lock_irqsave(&controller->lock, flags);
value = in_le32(FREG(controller, bit->reg));
value = bit->polarity ? (value | bit->mask) : (value & ~bit->mask);
out_le32(FREG(controller, bit->reg), value);
(void)in_le32(FREG(controller, bit->reg));
spin_unlock_irqrestore(&controller->lock, flags);
return 0;
}
int
feature_test(struct device_node* device, enum system_feature f)
{
struct feature_controller* controller;
unsigned long value;
fbit* bit;
if (f >= FEATURE_last)
return -EINVAL;
controller = feature_lookup_controller(device);
if (!controller)
return -ENODEV;
bit = &controller->bits[f];
if (!bit->mask)
return -EINVAL;
#ifdef DEBUG_FEATURE
printk("feature: <%s> clearing feature %d in controller @0x%x\n",
device->name, (int)f, (unsigned int)controller->reg);
#endif
/* If one feature contains several bits, all of them must be set
* for value to be true, or all of them must be 0 if polarity is
* inverse
*/
value = (in_le32(FREG(controller, bit->reg)) & bit->mask);
return bit->polarity ? (value == 0) : (value == bit->mask);
}
/*
* Core99 functions
*
* Note: We currently assume there is _one_ UniN chip and _one_ KeyLargo
* chip, which is the case on all Core99 machines so far
*/
/* Only one GMAC is assumed */
void
feature_set_gmac_power(struct device_node* device, int power)
{
unsigned long flags;
if (!uninorth_base || !keylargo)
return;
spin_lock_irqsave(&keylargo->lock, flags);
if (power)
UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
else
UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
spin_unlock_irqrestore(&keylargo->lock, flags);
udelay(20);
}
void
feature_set_gmac_phy_reset(struct device_node* device, int reset)
{
unsigned long flags;
if (!keylargo_base || !keylargo)
return;
spin_lock_irqsave(&keylargo->lock, flags);
out_8((volatile u8 *)KL_FCR(KL_GPIO_ETH_PHY_RESET), reset);
(void)in_8((volatile u8 *)KL_FCR(KL_GPIO_ETH_PHY_RESET));
spin_unlock_irqrestore(&keylargo->lock, flags);
}
/* Pass the node of the correct controller, please */
void
feature_set_usb_power(struct device_node* device, int power)
{
char* prop;
int number;
u32 reg;
unsigned long flags;
if (!keylargo_base || !keylargo)
return;
prop = (char *)get_property(device, "AAPL,clock-id", NULL);
if (!prop)
return;
if (strncmp(prop, "usb0u048", strlen("usb0u048")) == 0)
number = 0;
else if (strncmp(prop, "usb1u148", strlen("usb1u148")) == 0)
number = 2;
else
return;
spin_lock_irqsave(&keylargo->lock, flags);
if (power) {
/* Turn ON */
if (number == 0) {
KL_BIC(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
mdelay(1);
KL_BIS(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
} else {
KL_BIC(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
mdelay(1);
KL_BIS(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
}
reg = KL_IN(KEYLARGO_FCR4);
reg &= ~(KL4_SET_PORT_ENABLE(number) | KL4_SET_PORT_RESUME(number) |
KL4_SET_PORT_CONNECT(number) | KL4_SET_PORT_DISCONNECT(number));
reg &= ~(KL4_SET_PORT_ENABLE(number+1) | KL4_SET_PORT_RESUME(number+1) |
KL4_SET_PORT_CONNECT(number+1) | KL4_SET_PORT_DISCONNECT(number+1));
KL_OUT(KEYLARGO_FCR4, reg);
(void)KL_IN(KEYLARGO_FCR4);
udelay(10);
} else {
/* Turn OFF */
reg = KL_IN(KEYLARGO_FCR4);
reg |= KL4_SET_PORT_ENABLE(number) | KL4_SET_PORT_RESUME(number) |
KL4_SET_PORT_CONNECT(number) | KL4_SET_PORT_DISCONNECT(number);
reg |= KL4_SET_PORT_ENABLE(number+1) | KL4_SET_PORT_RESUME(number+1) |
KL4_SET_PORT_CONNECT(number+1) | KL4_SET_PORT_DISCONNECT(number+1);
KL_OUT(KEYLARGO_FCR4, reg);
(void)KL_IN(KEYLARGO_FCR4);
udelay(1);
if (number == 0) {
KL_BIC(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
(void)KL_IN(KEYLARGO_FCR0);
udelay(1);
KL_BIS(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
(void)KL_IN(KEYLARGO_FCR0);
} else {
KL_BIC(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
(void)KL_IN(KEYLARGO_FCR0);
udelay(1);
KL_BIS(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
(void)KL_IN(KEYLARGO_FCR0);
}
udelay(1);
}
spin_unlock_irqrestore(&keylargo->lock, flags);
}
/* Not yet implemented */
void
feature_set_firewire_power(struct device_node* device, int power)
{
}
#ifdef CONFIG_SMP
void
feature_core99_kick_cpu1(void)
{
out_8((volatile u8 *)KL_FCR(KL_GPIO_EXTINT_CPU1), KL_GPIO_EXTINT_CPU1_ASSERT);
udelay(1);
out_8((volatile u8 *)KL_FCR(KL_GPIO_EXTINT_CPU1), KL_GPIO_EXTINT_CPU1_RELEASE);
}
#endif /* CONFIG_SMP */
#ifdef CONFIG_PMAC_PBOOK
void
feature_prepare_for_sleep(void)
{
/* We assume gatwick is second */
struct feature_controller* ctrler = &controllers[0];
if (!ctrler)
return;
if (controller_count > 1 &&
device_is_compatible(ctrler->device, "gatwick"))
ctrler = &controllers[1];
if (ctrler->bits == feature_bits_heathrow ||
ctrler->bits == feature_bits_paddington) {
heathrow_prepare_for_sleep(ctrler);
return;
}
if (ctrler->bits == feature_bits_keylargo) {
core99_prepare_for_sleep(ctrler);
return;
}
}
void
feature_wake_up(void)
{
struct feature_controller* ctrler = &controllers[0];
if (!ctrler)
return;
if (controller_count > 1 &&
device_is_compatible(ctrler->device, "gatwick"))
ctrler = &controllers[1];
if (ctrler->bits == feature_bits_heathrow ||
ctrler->bits == feature_bits_paddington) {
heathrow_wakeup(ctrler);
return;
}
if (ctrler->bits == feature_bits_keylargo) {
core99_wake_up(ctrler);
return;
}
}
static u32 save_fcr[5];
static u32 save_mbcr;
static u32 save_gpio_levels[2];
static u8 save_gpio_extint[KEYLARGO_GPIO_EXTINT_CNT];
static u8 save_gpio_normal[KEYLARGO_GPIO_CNT];
static void
heathrow_prepare_for_sleep(struct feature_controller* ctrler)
{
save_mbcr = in_le32(FREG(ctrler, 0x34));
save_fcr[0] = in_le32(FREG(ctrler, 0x38));
save_fcr[1] = in_le32(FREG(ctrler, 0x3c));
out_le32(FREG(ctrler, 0x38), save_fcr[0] & ~HRW_IOBUS_ENABLE);
}
static void
heathrow_wakeup(struct feature_controller* ctrler)
{
out_le32(FREG(ctrler, 0x38), save_fcr[0]);
out_le32(FREG(ctrler, 0x3c), save_fcr[1]);
out_le32(FREG(ctrler, 0x34), save_mbcr);
mdelay(1);
out_le32(FREG(ctrler, 0x38), save_fcr[0] | HRW_IOBUS_ENABLE);
mdelay(1);
}
static void
core99_prepare_for_sleep(struct feature_controller* ctrler)
{
u32 temp;
int i;
u8* base8;
/*
* Save various bits of KeyLargo
*/
save_gpio_levels[0] = KL_IN(KEYLARGO_GPIO_LEVELS0);
save_gpio_levels[1] = KL_IN(KEYLARGO_GPIO_LEVELS1);
base8 = (u8 *)KL_FCR(KEYLARGO_GPIO_EXTINT_0);
for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
save_gpio_extint[i] = in_8(base8+i);
base8 = (u8 *)KL_FCR(KEYLARGO_GPIO_0);
for (i=0; i<KEYLARGO_GPIO_CNT; i++)
save_gpio_normal[i] = in_8(base8+i);
save_mbcr = KL_IN(KEYLARGO_MBCR);
save_fcr[0] = KL_IN(KEYLARGO_FCR0);
save_fcr[1] = KL_IN(KEYLARGO_FCR1);
save_fcr[2] = KL_IN(KEYLARGO_FCR2);
save_fcr[3] = KL_IN(KEYLARGO_FCR3);
save_fcr[4] = KL_IN(KEYLARGO_FCR4);
/*
* Turn off as much as we can
*/
KL_BIS(KEYLARGO_FCR0, KL0_USB_REF_SUSPEND);
mdelay(1);
KL_BIC(KEYLARGO_FCR0, KL0_SCCA_ENABLE | KL0_SCCB_ENABLE | KL0_SCC_CELL_ENABLE);
KL_BIC(KEYLARGO_FCR0, KL0_IRDA_ENABLE | KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE);
KL_BIS(KEYLARGO_MBCR, KL_MBCR_MBDEV_ENABLE);
KL_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);
KL_BIS(KEYLARGO_FCR2, KL2_MODEM_POWER_N);
KL_BIC(KEYLARGO_FCR2, KL2_IOBUS_ENABLE);
temp = KL_IN(KEYLARGO_FCR3);
if (keylargo_rev >= 2)
temp |= (KL3_SHUTDOWN_PLL2X | KL3_SHUTDOWN_PLL_TOTAL);
temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
KL3_SHUTDOWN_PLLKW35 | KL3_SHUTDOWN_PLLKW12;
temp &= ~(KL3_CLK66_ENABLE | KL3_CLK49_ENABLE | KL3_CLK45_ENABLE
| KL3_CLK31_ENABLE | KL3_TIMER_CLK18_ENABLE | KL3_I2S1_CLK18_ENABLE
| KL3_I2S0_CLK18_ENABLE | KL3_VIA_CLK16_ENABLE);
KL_OUT(KEYLARGO_FCR3, temp);
/*
* Put the host bridge to sleep
*/
UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_SLEEP);
/*
* FIXME: A bit of black magic with OpenPIC (don't ask me why)
*/
if (board_features & FTR_NEED_OPENPIC_TWEAK) {
KL_BIS(0x506e0, 0x00400000);
KL_BIS(0x506e0, 0x80000000);
}
}
static void
core99_wake_up(struct feature_controller* ctrler)
{
int i;
u8* base8;
/*
* Wakeup the host bridge
*/
UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
/*
* Restore KeyLargo
*/
KL_OUT(KEYLARGO_MBCR, save_mbcr);
KL_OUT(KEYLARGO_FCR0, save_fcr[0]);
KL_OUT(KEYLARGO_FCR1, save_fcr[1]);
KL_OUT(KEYLARGO_FCR2, save_fcr[2]);
KL_OUT(KEYLARGO_FCR3, save_fcr[3]);
KL_OUT(KEYLARGO_FCR4, save_fcr[4]);
mdelay(1);
KL_OUT(KEYLARGO_GPIO_LEVELS0, save_gpio_levels[0]);
KL_OUT(KEYLARGO_GPIO_LEVELS1, save_gpio_levels[1]);
base8 = (u8 *)KL_FCR(KEYLARGO_GPIO_EXTINT_0);
for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
out_8(base8+i, save_gpio_extint[i]);
base8 = (u8 *)KL_FCR(KEYLARGO_GPIO_0);
for (i=0; i<KEYLARGO_GPIO_CNT; i++)
out_8(base8+i, save_gpio_normal[i]);
/* FIXME more black magic with OpenPIC ... */
if (board_features & FTR_NEED_OPENPIC_TWEAK) {
KL_BIC(0x506e0, 0x00400000);
KL_BIC(0x506e0, 0x80000000);
}
}
#endif /* CONFIG_PMAC_PBOOK */
/* Initialize the Core99 UniNorth host bridge and memory controller
*/
static void
uninorth_init(void)
{
struct device_node* gmac;
unsigned long actrl;
/* Set the arbitrer QAck delay according to what Apple does
*/
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);
/*
* Turns OFF the gmac clock. The gmac driver will turn
* it back ON when the interface is enabled. This save
* power on portables.
*
* Note: We could also try to turn OFF the PHY. Since this
* has to be done by both the gmac driver and this code,
* I'll probably end-up moving some of this out of the
* modular gmac driver into a non-modular stub containing
* some basic PHY management and power management stuffs
*/
gmac = find_devices("ethernet");
while(gmac) {
if (device_is_compatible(gmac, "gmac"))
break;
gmac = gmac->next;
}
if (gmac)
feature_set_gmac_power(gmac, 0);
}
/* Initialize the Core99 KeyLargo ASIC. Currently, we just make sure
* OpenPIC is enabled
*/
static void
keylargo_init(void)
{
KL_BIS(KEYLARGO_FCR2, KL2_MPIC_ENABLE);
}
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