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Merge branches 'ftrace', 'gic', 'io', 'kexec', 'mod', 'sa11x0', 'sh' and 'versatile' into devel

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This commit is contained in:
Russell King 2011-01-05 18:08:10 +00:00
commit 31edf274f9
84 changed files with 1612 additions and 753 deletions
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3
drivers/pcmcia/Makefile
View file

@ -50,8 +50,9 @@ sa1111_cs-$(CONFIG_SA1100_JORNADA720) += sa1100_jornada720.o
sa1100_cs-y += sa1100_generic.o
sa1100_cs-$(CONFIG_SA1100_ASSABET) += sa1100_assabet.o
sa1100_cs-$(CONFIG_SA1100_CERF) += sa1100_cerf.o
sa1100_cs-$(CONFIG_SA1100_COLLIE) += pxa2xx_sharpsl.o
sa1100_cs-$(CONFIG_SA1100_COLLIE) += pxa2xx_sharpsl.o
sa1100_cs-$(CONFIG_SA1100_H3600) += sa1100_h3600.o
sa1100_cs-$(CONFIG_SA1100_NANOENGINE) += sa1100_nanoengine.o
sa1100_cs-$(CONFIG_SA1100_SHANNON) += sa1100_shannon.o
sa1100_cs-$(CONFIG_SA1100_SIMPAD) += sa1100_simpad.o

3
drivers/pcmcia/sa1100_generic.c
View file

@ -53,6 +53,9 @@ static int (*sa11x0_pcmcia_hw_init[])(struct device *dev) = {
#if defined(CONFIG_SA1100_H3100) || defined(CONFIG_SA1100_H3600)
pcmcia_h3600_init,
#endif
#ifdef CONFIG_SA1100_NANOENGINE
pcmcia_nanoengine_init,
#endif
#ifdef CONFIG_SA1100_SHANNON
pcmcia_shannon_init,
#endif

1
drivers/pcmcia/sa1100_generic.h
View file

@ -13,6 +13,7 @@ extern int pcmcia_freebird_init(struct device *);
extern int pcmcia_gcplus_init(struct device *);
extern int pcmcia_graphicsmaster_init(struct device *);
extern int pcmcia_h3600_init(struct device *);
extern int pcmcia_nanoengine_init(struct device *);
extern int pcmcia_pangolin_init(struct device *);
extern int pcmcia_pfs168_init(struct device *);
extern int pcmcia_shannon_init(struct device *);

219
drivers/pcmcia/sa1100_nanoengine.c Normal file
View file

@ -0,0 +1,219 @@
/*
* drivers/pcmcia/sa1100_nanoengine.c
*
* PCMCIA implementation routines for BSI nanoEngine.
*
* In order to have a fully functional pcmcia subsystem in a BSE nanoEngine
* board you should carefully read this:
* http://cambuca.ldhs.cetuc.puc-rio.br/nanoengine/
*
* Copyright (C) 2010 Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br>
*
* Based on original work for kernel 2.4 by
* Miguel Freitas <miguel@cpti.cetuc.puc-rio.br>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/signal.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <mach/hardware.h>
#include <mach/nanoengine.h>
#include "sa1100_generic.h"
static struct pcmcia_irqs irqs_skt0[] = {
/* socket, IRQ, name */
{ 0, NANOENGINE_IRQ_GPIO_PC_CD0, "PC CD0" },
};
static struct pcmcia_irqs irqs_skt1[] = {
/* socket, IRQ, name */
{ 1, NANOENGINE_IRQ_GPIO_PC_CD1, "PC CD1" },
};
struct nanoengine_pins {
unsigned input_pins;
unsigned output_pins;
unsigned clear_outputs;
unsigned transition_pins;
unsigned pci_irq;
struct pcmcia_irqs *pcmcia_irqs;
unsigned pcmcia_irqs_size;
};
static struct nanoengine_pins nano_skts[] = {
{
.input_pins = GPIO_PC_READY0 | GPIO_PC_CD0,
.output_pins = GPIO_PC_RESET0,
.clear_outputs = GPIO_PC_RESET0,
.transition_pins = NANOENGINE_IRQ_GPIO_PC_CD0,
.pci_irq = NANOENGINE_IRQ_GPIO_PC_READY0,
.pcmcia_irqs = irqs_skt0,
.pcmcia_irqs_size = ARRAY_SIZE(irqs_skt0)
}, {
.input_pins = GPIO_PC_READY1 | GPIO_PC_CD1,
.output_pins = GPIO_PC_RESET1,
.clear_outputs = GPIO_PC_RESET1,
.transition_pins = NANOENGINE_IRQ_GPIO_PC_CD1,
.pci_irq = NANOENGINE_IRQ_GPIO_PC_READY1,
.pcmcia_irqs = irqs_skt1,
.pcmcia_irqs_size = ARRAY_SIZE(irqs_skt1)
}
};
unsigned num_nano_pcmcia_sockets = ARRAY_SIZE(nano_skts);
static int nanoengine_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
unsigned i = skt->nr;
if (i >= num_nano_pcmcia_sockets)
return -ENXIO;
GPDR &= ~nano_skts[i].input_pins;
GPDR |= nano_skts[i].output_pins;
GPCR = nano_skts[i].clear_outputs;
set_irq_type(nano_skts[i].transition_pins, IRQ_TYPE_EDGE_BOTH);
skt->socket.pci_irq = nano_skts[i].pci_irq;
return soc_pcmcia_request_irqs(skt,
nano_skts[i].pcmcia_irqs, nano_skts[i].pcmcia_irqs_size);
}
/*
* Release all resources.
*/
static void nanoengine_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
unsigned i = skt->nr;
if (i >= num_nano_pcmcia_sockets)
return;
soc_pcmcia_free_irqs(skt,
nano_skts[i].pcmcia_irqs, nano_skts[i].pcmcia_irqs_size);
}
static int nanoengine_pcmcia_configure_socket(
struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
unsigned reset;
unsigned i = skt->nr;
if (i >= num_nano_pcmcia_sockets)
return -ENXIO;
switch (i) {
case 0:
reset = GPIO_PC_RESET0;
break;
case 1:
reset = GPIO_PC_RESET1;
break;
default:
return -ENXIO;
}
if (state->flags & SS_RESET)
GPSR = reset;
else
GPCR = reset;
return 0;
}
static void nanoengine_pcmcia_socket_state(
struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
{
unsigned long levels = GPLR;
unsigned i = skt->nr;
if (i >= num_nano_pcmcia_sockets)
return;
memset(state, 0, sizeof(struct pcmcia_state));
switch (i) {
case 0:
state->ready = (levels & GPIO_PC_READY0) ? 1 : 0;
state->detect = !(levels & GPIO_PC_CD0) ? 1 : 0;
break;
case 1:
state->ready = (levels & GPIO_PC_READY1) ? 1 : 0;
state->detect = !(levels & GPIO_PC_CD1) ? 1 : 0;
break;
default:
return;
}
state->bvd1 = 1;
state->bvd2 = 1;
state->wrprot = 0; /* Not available */
state->vs_3v = 1; /* Can only apply 3.3V */
state->vs_Xv = 0;
}
/*
* Enable card status IRQs on (re-)initialisation. This can
* be called at initialisation, power management event, or
* pcmcia event.
*/
static void nanoengine_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
unsigned i = skt->nr;
if (i >= num_nano_pcmcia_sockets)
return;
soc_pcmcia_enable_irqs(skt,
nano_skts[i].pcmcia_irqs, nano_skts[i].pcmcia_irqs_size);
}
/*
* Disable card status IRQs on suspend.
*/
static void nanoengine_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
unsigned i = skt->nr;
if (i >= num_nano_pcmcia_sockets)
return;
soc_pcmcia_disable_irqs(skt,
nano_skts[i].pcmcia_irqs, nano_skts[i].pcmcia_irqs_size);
}
static struct pcmcia_low_level nanoengine_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = nanoengine_pcmcia_hw_init,
.hw_shutdown = nanoengine_pcmcia_hw_shutdown,
.configure_socket = nanoengine_pcmcia_configure_socket,
.socket_state = nanoengine_pcmcia_socket_state,
.socket_init = nanoengine_pcmcia_socket_init,
.socket_suspend = nanoengine_pcmcia_socket_suspend,
};
int pcmcia_nanoengine_init(struct device *dev)
{
int ret = -ENODEV;
if (machine_is_nanoengine())
ret = sa11xx_drv_pcmcia_probe(
dev, &nanoengine_pcmcia_ops, 0, 2);
return ret;
}

130
drivers/pcmcia/soc_common.c
View file

@ -31,20 +31,20 @@
======================================================================*/
#include <linux/cpufreq.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/mutex.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/spinlock.h>
#include <linux/cpufreq.h>
#include <linux/timer.h>
#include <mach/hardware.h>
#include <asm/io.h>
#include <asm/system.h>
#include "soc_common.h"
@ -74,7 +74,8 @@ EXPORT_SYMBOL(soc_pcmcia_debug);
#endif
#define to_soc_pcmcia_socket(x) container_of(x, struct soc_pcmcia_socket, socket)
#define to_soc_pcmcia_socket(x) \
container_of(x, struct soc_pcmcia_socket, socket)
static unsigned short
calc_speed(unsigned short *spds, int num, unsigned short dflt)
@ -91,11 +92,15 @@ calc_speed(unsigned short *spds, int num, unsigned short dflt)
return speed;
}
void soc_common_pcmcia_get_timing(struct soc_pcmcia_socket *skt, struct soc_pcmcia_timing *timing)
void soc_common_pcmcia_get_timing(struct soc_pcmcia_socket *skt,
struct soc_pcmcia_timing *timing)
{
timing->io = calc_speed(skt->spd_io, MAX_IO_WIN, SOC_PCMCIA_IO_ACCESS);
timing->mem = calc_speed(skt->spd_mem, MAX_WIN, SOC_PCMCIA_3V_MEM_ACCESS);
timing->attr = calc_speed(skt->spd_attr, MAX_WIN, SOC_PCMCIA_3V_MEM_ACCESS);
timing->io =
calc_speed(skt->spd_io, MAX_IO_WIN, SOC_PCMCIA_IO_ACCESS);
timing->mem =
calc_speed(skt->spd_mem, MAX_WIN, SOC_PCMCIA_3V_MEM_ACCESS);
timing->attr =
calc_speed(skt->spd_attr, MAX_WIN, SOC_PCMCIA_3V_MEM_ACCESS);
}
EXPORT_SYMBOL(soc_common_pcmcia_get_timing);
@ -137,8 +142,8 @@ static unsigned int soc_common_pcmcia_skt_state(struct soc_pcmcia_socket *skt)
*
* Convert PCMCIA socket state to our socket configure structure.
*/
static int
soc_common_pcmcia_config_skt(struct soc_pcmcia_socket *skt, socket_state_t *state)
static int soc_common_pcmcia_config_skt(
struct soc_pcmcia_socket *skt, socket_state_t *state)
{
int ret;
@ -150,7 +155,8 @@ soc_common_pcmcia_config_skt(struct soc_pcmcia_socket *skt, socket_state_t *stat
*/
if (skt->irq_state != 1 && state->io_irq) {
skt->irq_state = 1;
set_irq_type(skt->socket.pci_irq, IRQ_TYPE_EDGE_FALLING);
set_irq_type(skt->socket.pci_irq,
IRQ_TYPE_EDGE_FALLING);
} else if (skt->irq_state == 1 && state->io_irq == 0) {
skt->irq_state = 0;
set_irq_type(skt->socket.pci_irq, IRQ_TYPE_NONE);
@ -304,24 +310,24 @@ soc_common_pcmcia_get_status(struct pcmcia_socket *sock, unsigned int *status)
* of power configuration, reset, &c. We also record the value of
* `state' in order to regurgitate it to the PCMCIA core later.
*/
static int
soc_common_pcmcia_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
static int soc_common_pcmcia_set_socket(
struct pcmcia_socket *sock, socket_state_t *state)
{
struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
debug(skt, 2, "mask: %s%s%s%s%s%sflags: %s%s%s%s%s%sVcc %d Vpp %d irq %d\n",
(state->csc_mask==0)?"<NONE> ":"",
(state->csc_mask&SS_DETECT)?"DETECT ":"",
(state->csc_mask&SS_READY)?"READY ":"",
(state->csc_mask&SS_BATDEAD)?"BATDEAD ":"",
(state->csc_mask&SS_BATWARN)?"BATWARN ":"",
(state->csc_mask&SS_STSCHG)?"STSCHG ":"",
(state->flags==0)?"<NONE> ":"",
(state->flags&SS_PWR_AUTO)?"PWR_AUTO ":"",
(state->flags&SS_IOCARD)?"IOCARD ":"",
(state->flags&SS_RESET)?"RESET ":"",
(state->flags&SS_SPKR_ENA)?"SPKR_ENA ":"",
(state->flags&SS_OUTPUT_ENA)?"OUTPUT_ENA ":"",
debug(skt, 2, "mask: %s%s%s%s%s%s flags: %s%s%s%s%s%s Vcc %d Vpp %d irq %d\n",
(state->csc_mask == 0) ? "<NONE> " : "",
(state->csc_mask & SS_DETECT) ? "DETECT " : "",
(state->csc_mask & SS_READY) ? "READY " : "",
(state->csc_mask & SS_BATDEAD) ? "BATDEAD " : "",
(state->csc_mask & SS_BATWARN) ? "BATWARN " : "",
(state->csc_mask & SS_STSCHG) ? "STSCHG " : "",
(state->flags == 0) ? "<NONE> " : "",
(state->flags & SS_PWR_AUTO) ? "PWR_AUTO " : "",
(state->flags & SS_IOCARD) ? "IOCARD " : "",
(state->flags & SS_RESET) ? "RESET " : "",
(state->flags & SS_SPKR_ENA) ? "SPKR_ENA " : "",
(state->flags & SS_OUTPUT_ENA) ? "OUTPUT_ENA " : "",
state->Vcc, state->Vpp, state->io_irq);
return soc_common_pcmcia_config_skt(skt, state);
@ -336,8 +342,8 @@ soc_common_pcmcia_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
*
* Returns: 0 on success, -1 on error
*/
static int
soc_common_pcmcia_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *map)
static int soc_common_pcmcia_set_io_map(
struct pcmcia_socket *sock, struct pccard_io_map *map)
{
struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
unsigned short speed = map->speed;
@ -346,14 +352,14 @@ soc_common_pcmcia_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *m
map->map, map->speed, (unsigned long long)map->start,
(unsigned long long)map->stop);
debug(skt, 2, "flags: %s%s%s%s%s%s%s%s\n",
(map->flags==0)?"<NONE>":"",
(map->flags&MAP_ACTIVE)?"ACTIVE ":"",
(map->flags&MAP_16BIT)?"16BIT ":"",
(map->flags&MAP_AUTOSZ)?"AUTOSZ ":"",
(map->flags&MAP_0WS)?"0WS ":"",
(map->flags&MAP_WRPROT)?"WRPROT ":"",
(map->flags&MAP_USE_WAIT)?"USE_WAIT ":"",
(map->flags&MAP_PREFETCH)?"PREFETCH ":"");
(map->flags == 0) ? "<NONE>" : "",
(map->flags & MAP_ACTIVE) ? "ACTIVE " : "",
(map->flags & MAP_16BIT) ? "16BIT " : "",
(map->flags & MAP_AUTOSZ) ? "AUTOSZ " : "",
(map->flags & MAP_0WS) ? "0WS " : "",
(map->flags & MAP_WRPROT) ? "WRPROT " : "",
(map->flags & MAP_USE_WAIT) ? "USE_WAIT " : "",
(map->flags & MAP_PREFETCH) ? "PREFETCH " : "");
if (map->map >= MAX_IO_WIN) {
printk(KERN_ERR "%s(): map (%d) out of range\n", __func__,
@ -390,8 +396,8 @@ soc_common_pcmcia_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *m
*
* Returns: 0 on success, -ERRNO on error
*/
static int
soc_common_pcmcia_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *map)
static int soc_common_pcmcia_set_mem_map(
struct pcmcia_socket *sock, struct pccard_mem_map *map)
{
struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
struct resource *res;
@ -400,14 +406,14 @@ soc_common_pcmcia_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map
debug(skt, 2, "map %u speed %u card_start %08x\n",
map->map, map->speed, map->card_start);
debug(skt, 2, "flags: %s%s%s%s%s%s%s%s\n",
(map->flags==0)?"<NONE>":"",
(map->flags&MAP_ACTIVE)?"ACTIVE ":"",
(map->flags&MAP_16BIT)?"16BIT ":"",
(map->flags&MAP_AUTOSZ)?"AUTOSZ ":"",
(map->flags&MAP_0WS)?"0WS ":"",
(map->flags&MAP_WRPROT)?"WRPROT ":"",
(map->flags&MAP_ATTRIB)?"ATTRIB ":"",
(map->flags&MAP_USE_WAIT)?"USE_WAIT ":"");
(map->flags == 0) ? "<NONE>" : "",
(map->flags & MAP_ACTIVE) ? "ACTIVE " : "",
(map->flags & MAP_16BIT) ? "16BIT " : "",
(map->flags & MAP_AUTOSZ) ? "AUTOSZ " : "",
(map->flags & MAP_0WS) ? "0WS " : "",
(map->flags & MAP_WRPROT) ? "WRPROT " : "",
(map->flags & MAP_ATTRIB) ? "ATTRIB " : "",
(map->flags & MAP_USE_WAIT) ? "USE_WAIT " : "");
if (map->map >= MAX_WIN)
return -EINVAL;
@ -462,8 +468,8 @@ static struct bittbl conf_bits[] = {
{ SS_OUTPUT_ENA, "SS_OUTPUT_ENA" },
};
static void
dump_bits(char **p, const char *prefix, unsigned int val, struct bittbl *bits, int sz)
static void dump_bits(char **p, const char *prefix,
unsigned int val, struct bittbl *bits, int sz)
{
char *b = *p;
int i;
@ -481,13 +487,14 @@ dump_bits(char **p, const char *prefix, unsigned int val, struct bittbl *bits, i
*
* Returns: the number of characters added to the buffer
*/
static ssize_t show_status(struct device *dev, struct device_attribute *attr, char *buf)
static ssize_t show_status(
struct device *dev, struct device_attribute *attr, char *buf)
{
struct soc_pcmcia_socket *skt =
container_of(dev, struct soc_pcmcia_socket, socket.dev);
char *p = buf;
p+=sprintf(p, "slot : %d\n", skt->nr);
p += sprintf(p, "slot : %d\n", skt->nr);
dump_bits(&p, "status", skt->status,
status_bits, ARRAY_SIZE(status_bits));
@ -496,12 +503,12 @@ static ssize_t show_status(struct device *dev, struct device_attribute *attr, ch
dump_bits(&p, "cs_flags", skt->cs_state.flags,
conf_bits, ARRAY_SIZE(conf_bits));
p+=sprintf(p, "Vcc : %d\n", skt->cs_state.Vcc);
p+=sprintf(p, "Vpp : %d\n", skt->cs_state.Vpp);
p+=sprintf(p, "IRQ : %d (%d)\n", skt->cs_state.io_irq,
p += sprintf(p, "Vcc : %d\n", skt->cs_state.Vcc);
p += sprintf(p, "Vpp : %d\n", skt->cs_state.Vpp);
p += sprintf(p, "IRQ : %d (%d)\n", skt->cs_state.io_irq,
skt->socket.pci_irq);
if (skt->ops->show_timing)
p+=skt->ops->show_timing(skt, p);
p += skt->ops->show_timing(skt, p);
return p-buf;
}
@ -594,7 +601,7 @@ soc_pcmcia_notifier(struct notifier_block *nb, unsigned long val, void *data)
mutex_lock(&soc_pcmcia_sockets_lock);
list_for_each_entry(skt, &soc_pcmcia_sockets, node)
if ( skt->ops->frequency_change )
if (skt->ops->frequency_change)
ret += skt->ops->frequency_change(skt, val, freqs);
mutex_unlock(&soc_pcmcia_sockets_lock);
@ -620,7 +627,8 @@ fs_initcall(soc_pcmcia_cpufreq_register);
static void soc_pcmcia_cpufreq_unregister(void)
{
cpufreq_unregister_notifier(&soc_pcmcia_notifier_block, CPUFREQ_TRANSITION_NOTIFIER);
cpufreq_unregister_notifier(&soc_pcmcia_notifier_block,
CPUFREQ_TRANSITION_NOTIFIER);
}
module_exit(soc_pcmcia_cpufreq_unregister);