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[ARM] 3093/1: SharpSL PCMCIA Updates for Cxx00 models

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Patch from Richard Purdie

The Sharp SL-Cxx00 models have a combined power control for the SD
and CF slot 0. This patch adds hooks to the scoop driver to allow
machines to provide a custom control function for this and such a
function is added for spitz/akita/borzoi.

It also moves the gpio init code into the machine files as this
is machine dependent and differs between some models. A couple of
warnings when compiling for collie are also fixed.

Signed-off-by: Richard Purdie
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Richard Purdie
2005-11-08 19:15:43 +00:00
committed by Russell King
parent 1d23b65de5
commit a63ae4427c
6 changed files with 221 additions and 112 deletions
Download Patch File Download Diff File Expand all files Collapse all files

140
drivers/pcmcia/pxa2xx_sharpsl.c
View File

@@ -22,16 +22,20 @@
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/hardware/scoop.h>
#ifdef CONFIG_SA1100_COLLIE
#include <asm/arch-sa1100/collie.h>
#else
#include <asm/arch-pxa/pxa-regs.h>
#endif
#include "soc_common.h"
#define NO_KEEP_VS 0x0001
/* PCMCIA to Scoop linkage
There is no easy way to link multiple scoop devices into one
single entity for the pxa2xx_pcmcia device so this structure
is used which is setup by the platform code
*/
struct scoop_pcmcia_config *platform_scoop_config;
#define SCOOP_DEV platform_scoop_config->devs
static void sharpsl_pcmcia_init_reset(struct scoop_pcmcia_dev *scoopdev)
{
reset_scoop(scoopdev->dev);
@@ -43,38 +47,16 @@ static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
int ret;
#ifndef CONFIG_SA1100_COLLIE
/*
* Setup default state of GPIO outputs
* before we enable them as outputs.
*/
GPSR(GPIO48_nPOE) =
GPIO_bit(GPIO48_nPOE) |
GPIO_bit(GPIO49_nPWE) |
GPIO_bit(GPIO50_nPIOR) |
GPIO_bit(GPIO51_nPIOW) |
GPIO_bit(GPIO52_nPCE_1) |
GPIO_bit(GPIO53_nPCE_2);
pxa_gpio_mode(GPIO48_nPOE_MD);
pxa_gpio_mode(GPIO49_nPWE_MD);
pxa_gpio_mode(GPIO50_nPIOR_MD);
pxa_gpio_mode(GPIO51_nPIOW_MD);
pxa_gpio_mode(GPIO52_nPCE_1_MD);
pxa_gpio_mode(GPIO53_nPCE_2_MD);
pxa_gpio_mode(GPIO54_pSKTSEL_MD);
pxa_gpio_mode(GPIO55_nPREG_MD);
pxa_gpio_mode(GPIO56_nPWAIT_MD);
pxa_gpio_mode(GPIO57_nIOIS16_MD);
#endif
if (platform_scoop_config->pcmcia_init)
platform_scoop_config->pcmcia_init();
/* Register interrupts */
if (scoop_devs[skt->nr].cd_irq >= 0) {
if (SCOOP_DEV[skt->nr].cd_irq >= 0) {
struct pcmcia_irqs cd_irq;
cd_irq.sock = skt->nr;
cd_irq.irq = scoop_devs[skt->nr].cd_irq;
cd_irq.str = scoop_devs[skt->nr].cd_irq_str;
cd_irq.irq = SCOOP_DEV[skt->nr].cd_irq;
cd_irq.str = SCOOP_DEV[skt->nr].cd_irq_str;
ret = soc_pcmcia_request_irqs(skt, &cd_irq, 1);
if (ret) {
@@ -83,19 +65,19 @@ static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
}
}
skt->irq = scoop_devs[skt->nr].irq;
skt->irq = SCOOP_DEV[skt->nr].irq;
return 0;
}
static void sharpsl_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
if (scoop_devs[skt->nr].cd_irq >= 0) {
if (SCOOP_DEV[skt->nr].cd_irq >= 0) {
struct pcmcia_irqs cd_irq;
cd_irq.sock = skt->nr;
cd_irq.irq = scoop_devs[skt->nr].cd_irq;
cd_irq.str = scoop_devs[skt->nr].cd_irq_str;
cd_irq.irq = SCOOP_DEV[skt->nr].cd_irq;
cd_irq.str = SCOOP_DEV[skt->nr].cd_irq_str;
soc_pcmcia_free_irqs(skt, &cd_irq, 1);
}
}
@@ -105,9 +87,9 @@ static void sharpsl_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
struct pcmcia_state *state)
{
unsigned short cpr, csr;
struct device *scoop = scoop_devs[skt->nr].dev;
struct device *scoop = SCOOP_DEV[skt->nr].dev;
cpr = read_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR);
cpr = read_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR);
write_scoop_reg(scoop, SCOOP_IRM, 0x00FF);
write_scoop_reg(scoop, SCOOP_ISR, 0x0000);
@@ -116,21 +98,25 @@ static void sharpsl_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
if (csr & 0x0004) {
/* card eject */
write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
scoop_devs[skt->nr].keep_vs = NO_KEEP_VS;
SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
}
else if (!(scoop_devs[skt->nr].keep_vs & NO_KEEP_VS)) {
else if (!(SCOOP_DEV[skt->nr].keep_vs & NO_KEEP_VS)) {
/* keep vs1,vs2 */
write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
csr |= scoop_devs[skt->nr].keep_vs;
csr |= SCOOP_DEV[skt->nr].keep_vs;
}
else if (cpr & 0x0003) {
/* power on */
write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
scoop_devs[skt->nr].keep_vs = (csr & 0x00C0);
SCOOP_DEV[skt->nr].keep_vs = (csr & 0x00C0);
}
else {
/* card detect */
write_scoop_reg(scoop, SCOOP_CDR, 0x0002);
if ((machine_is_spitz() || machine_is_borzoi()) && skt->nr == 1) {
write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
} else {
write_scoop_reg(scoop, SCOOP_CDR, 0x0002);
}
}
state->detect = (csr & 0x0004) ? 0 : 1;
@@ -144,7 +130,6 @@ static void sharpsl_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
if ((cpr & 0x0080) && ((cpr & 0x8040) != 0x8040)) {
printk(KERN_ERR "sharpsl_pcmcia_socket_state(): CPR=%04X, Low voltage!\n", cpr);
}
}
@@ -152,7 +137,7 @@ static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
unsigned long flags;
struct device *scoop = scoop_devs[skt->nr].dev;
struct device *scoop = SCOOP_DEV[skt->nr].dev;
unsigned short cpr, ncpr, ccr, nccr, mcr, nmcr, imr, nimr;
@@ -177,8 +162,13 @@ static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
nccr = (ccr = read_scoop_reg(scoop, SCOOP_CCR)) & ~0x0080;
nimr = (imr = read_scoop_reg(scoop, SCOOP_IMR)) & ~0x003E;
ncpr |= (state->Vcc == 33) ? 0x0001 :
(state->Vcc == 50) ? 0x0002 : 0;
if ((machine_is_spitz() || machine_is_borzoi() || machine_is_akita()) && skt->nr == 0) {
ncpr |= (state->Vcc == 33) ? 0x0002 :
(state->Vcc == 50) ? 0x0002 : 0;
} else {
ncpr |= (state->Vcc == 33) ? 0x0001 :
(state->Vcc == 50) ? 0x0002 : 0;
}
nmcr |= (state->flags&SS_IOCARD) ? 0x0010 : 0;
ncpr |= (state->flags&SS_OUTPUT_ENA) ? 0x0080 : 0;
nccr |= (state->flags&SS_RESET)? 0x0080: 0;
@@ -190,18 +180,22 @@ static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
((skt->status&SS_WRPROT) ? 0x0008 : 0);
if (!(ncpr & 0x0003)) {
scoop_devs[skt->nr].keep_rd = 0;
} else if (!scoop_devs[skt->nr].keep_rd) {
SCOOP_DEV[skt->nr].keep_rd = 0;
} else if (!SCOOP_DEV[skt->nr].keep_rd) {
if (nccr & 0x0080)
scoop_devs[skt->nr].keep_rd = 1;
SCOOP_DEV[skt->nr].keep_rd = 1;
else
nccr |= 0x0080;
}
if (mcr != nmcr)
write_scoop_reg(scoop, SCOOP_MCR, nmcr);
if (cpr != ncpr)
write_scoop_reg(scoop, SCOOP_CPR, ncpr);
if (cpr != ncpr) {
if (platform_scoop_config->power_ctrl)
platform_scoop_config->power_ctrl(scoop, ncpr , skt->nr);
else
write_scoop_reg(scoop, SCOOP_CPR, ncpr);
}
if (ccr != nccr)
write_scoop_reg(scoop, SCOOP_CCR, nccr);
if (imr != nimr)
@@ -214,43 +208,43 @@ static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
static void sharpsl_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
sharpsl_pcmcia_init_reset(&scoop_devs[skt->nr]);
sharpsl_pcmcia_init_reset(&SCOOP_DEV[skt->nr]);
/* Enable interrupt */
write_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_IMR, 0x00C0);
write_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_MCR, 0x0101);
scoop_devs[skt->nr].keep_vs = NO_KEEP_VS;
write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_IMR, 0x00C0);
write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_MCR, 0x0101);
SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
if (machine_is_collie())
/* We need to disable SS_OUTPUT_ENA here. */
write_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR, read_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR) & ~0x0080);
write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR, read_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR) & ~0x0080);
}
static void sharpsl_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
/* CF_BUS_OFF */
sharpsl_pcmcia_init_reset(&scoop_devs[skt->nr]);
sharpsl_pcmcia_init_reset(&SCOOP_DEV[skt->nr]);
if (machine_is_collie())
/* We need to disable SS_OUTPUT_ENA here. */
write_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR, read_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR) & ~0x0080);
write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR, read_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR) & ~0x0080);
}
static struct pcmcia_low_level sharpsl_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = sharpsl_pcmcia_hw_init,
.hw_shutdown = sharpsl_pcmcia_hw_shutdown,
.socket_state = sharpsl_pcmcia_socket_state,
.configure_socket = sharpsl_pcmcia_configure_socket,
.socket_init = sharpsl_pcmcia_socket_init,
.socket_suspend = sharpsl_pcmcia_socket_suspend,
.first = 0,
.nr = 0,
.owner = THIS_MODULE,
.hw_init = sharpsl_pcmcia_hw_init,
.hw_shutdown = sharpsl_pcmcia_hw_shutdown,
.socket_state = sharpsl_pcmcia_socket_state,
.configure_socket = sharpsl_pcmcia_configure_socket,
.socket_init = sharpsl_pcmcia_socket_init,
.socket_suspend = sharpsl_pcmcia_socket_suspend,
.first = 0,
.nr = 0,
};
static struct platform_device *sharpsl_pcmcia_device;
#ifdef CONFIG_SA1100_COLLIE
#include "sa11xx_base.h"
int __init pcmcia_collie_init(struct device *dev)
{
int ret = -ENODEV;
@@ -263,11 +257,13 @@ int __init pcmcia_collie_init(struct device *dev)
#else
static struct platform_device *sharpsl_pcmcia_device;
static int __init sharpsl_pcmcia_init(void)
{
int ret;
sharpsl_pcmcia_ops.nr=scoop_num;
sharpsl_pcmcia_ops.nr=platform_scoop_config->num_devs;
sharpsl_pcmcia_device = kmalloc(sizeof(*sharpsl_pcmcia_device), GFP_KERNEL);
if (!sharpsl_pcmcia_device)
return -ENOMEM;
@@ -275,7 +271,7 @@ static int __init sharpsl_pcmcia_init(void)
memset(sharpsl_pcmcia_device, 0, sizeof(*sharpsl_pcmcia_device));
sharpsl_pcmcia_device->name = "pxa2xx-pcmcia";
sharpsl_pcmcia_device->dev.platform_data = &sharpsl_pcmcia_ops;
sharpsl_pcmcia_device->dev.parent=scoop_devs[0].dev;
sharpsl_pcmcia_device->dev.parent=platform_scoop_config->devs[0].dev;
ret = platform_device_register(sharpsl_pcmcia_device);
if (ret)