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[ARM] pxa: Refactor Colibri board support code
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- Move common function for all Colibri PXA3xx boards to the newly
  added colibri-pxa3xx.c
- Drop some unnecessary defines from colibri.h
- Make Kconfig reflect the fact that code for colibri 300 module does
  also work for the 310 model
- Give up on the huge pin config table which was messed up with lots of
  #ifdefs and switch over to locally defined tables for configured
  functions

Cc: Matthias Meier <matthias.j.meier@gmx.net>
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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Daniel Mack authored and Eric Miao committed Mar 23, 2009
1 parent 626806d commit acb3655
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Showing 5 changed files with 119 additions and 94 deletions.
2 changes: 1 addition & 1 deletion arch/arm/mach-pxa/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -266,7 +266,7 @@ config MACH_COLIBRI
select PXA27x

config MACH_COLIBRI300
bool "Toradex Colibri PXA300"
bool "Toradex Colibri PXA300/310"
select PXA3xx
select CPU_PXA300

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2 changes: 1 addition & 1 deletion arch/arm/mach-pxa/Makefile
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Expand Up @@ -36,7 +36,7 @@ obj-$(CONFIG_MACH_MP900C) += mp900.o
obj-$(CONFIG_ARCH_PXA_IDP) += idp.o
obj-$(CONFIG_MACH_TRIZEPS4) += trizeps4.o
obj-$(CONFIG_MACH_COLIBRI) += colibri-pxa270.o
obj-$(CONFIG_MACH_COLIBRI300) += colibri-pxa300.o
obj-$(CONFIG_MACH_COLIBRI300) += colibri-pxa3xx.o colibri-pxa300.o
obj-$(CONFIG_MACH_H5000) += h5000.o
obj-$(CONFIG_PXA_SHARP_C7xx) += corgi.o sharpsl_pm.o corgi_pm.o
obj-$(CONFIG_PXA_SHARP_Cxx00) += spitz.o sharpsl_pm.o spitz_pm.o
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116 changes: 36 additions & 80 deletions arch/arm/mach-pxa/colibri-pxa300.c
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Original file line number Diff line number Diff line change
@@ -1,8 +1,10 @@
/*
* arch/arm/mach-pxa/colibri-pxa300.c
*
* Support for Toradex PXA300 based Colibri module
* Support for Toradex PXA300/310 based Colibri module
*
* Daniel Mack <daniel@caiaq.de>
* Matthias Meier <matthias.j.meier@gmx.net>
*
* 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
Expand All @@ -16,40 +18,19 @@
#include <net/ax88796.h>

#include <asm/mach-types.h>
#include <asm/sizes.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>

#include <mach/pxa300.h>
#include <mach/colibri.h>
#include <mach/mmc.h>
#include <mach/ohci.h>

#include "generic.h"
#include "devices.h"

/*
* GPIO configuration
*/
static mfp_cfg_t colibri_pxa300_pin_config[] __initdata = {
GPIO1_nCS2, /* AX88796 chip select */
GPIO26_GPIO | MFP_PULL_HIGH, /* AX88796 IRQ */

#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
GPIO7_MMC1_CLK,
GPIO14_MMC1_CMD,
GPIO3_MMC1_DAT0,
GPIO4_MMC1_DAT1,
GPIO5_MMC1_DAT2,
GPIO6_MMC1_DAT3,
#endif

#if defined (CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
GPIO0_2_USBH_PEN,
GPIO1_2_USBH_PWR,
#endif
};

#if defined(CONFIG_AX88796)
#define COLIBRI_ETH_IRQ_GPIO mfp_to_gpio(GPIO26_GPIO)
/*
* Asix AX88796 Ethernet
*/
Expand All @@ -65,8 +46,8 @@ static struct resource colibri_asix_resource[] = {
.flags = IORESOURCE_MEM,
},
[1] = {
.start = COLIBRI_PXA300_ETH_IRQ,
.end = COLIBRI_PXA300_ETH_IRQ,
.start = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
.end = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
.flags = IORESOURCE_IRQ
}
};
Expand All @@ -80,82 +61,57 @@ static struct platform_device asix_device = {
.platform_data = &colibri_asix_platdata
}
};
#endif /* CONFIG_AX88796 */

static struct platform_device *colibri_pxa300_devices[] __initdata = {
#if defined(CONFIG_AX88796)
&asix_device
#endif
};

#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
#define MMC_DETECT_PIN mfp_to_gpio(MFP_PIN_GPIO13)

static int colibri_pxa300_mci_init(struct device *dev,
irq_handler_t colibri_mmc_detect_int,
void *data)
{
int ret;

ret = gpio_request(MMC_DETECT_PIN, "mmc card detect");
if (ret)
return ret;

gpio_direction_input(MMC_DETECT_PIN);
ret = request_irq(gpio_to_irq(MMC_DETECT_PIN), colibri_mmc_detect_int,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"MMC card detect", data);
if (ret) {
gpio_free(MMC_DETECT_PIN);
return ret;
}

return 0;
}

static void colibri_pxa300_mci_exit(struct device *dev, void *data)
{
free_irq(MMC_DETECT_PIN, data);
gpio_free(gpio_to_irq(MMC_DETECT_PIN));
}

static struct pxamci_platform_data colibri_pxa300_mci_platform_data = {
.detect_delay = 20,
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.init = colibri_pxa300_mci_init,
.exit = colibri_pxa300_mci_exit,
static mfp_cfg_t colibri_pxa300_eth_pin_config[] __initdata = {
GPIO1_nCS2, /* AX88796 chip select */
GPIO26_GPIO | MFP_PULL_HIGH /* AX88796 IRQ */
};

static void __init colibri_pxa300_init_mmc(void)
static void __init colibri_pxa300_init_eth(void)
{
pxa_set_mci_info(&colibri_pxa300_mci_platform_data);
pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_eth_pin_config));
set_irq_type(gpio_to_irq(COLIBRI_ETH_IRQ_GPIO), IRQ_TYPE_EDGE_FALLING);
platform_device_register(&asix_device);
}

#else
static inline void colibri_pxa300_init_mmc(void) {}
#endif /* CONFIG_MMC_PXA */
static inline void __init colibri_pxa300_init_eth(void) {}
#endif /* CONFIG_AX88796 */

#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
static mfp_cfg_t colibri_pxa300_usb_pin_config[] __initdata = {
GPIO0_2_USBH_PEN,
GPIO1_2_USBH_PWR,
};

static struct pxaohci_platform_data colibri_pxa300_ohci_info = {
.port_mode = PMM_GLOBAL_MODE,
.flags = ENABLE_PORT1 | POWER_CONTROL_LOW | POWER_SENSE_LOW,
};

static void __init colibri_pxa300_init_ohci(void)
void __init colibri_pxa300_init_ohci(void)
{
pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_usb_pin_config));
pxa_set_ohci_info(&colibri_pxa300_ohci_info);
}
#else
static inline void colibri_pxa300_init_ohci(void) {}
#endif /* CONFIG_USB_OHCI_HCD || CONFIG_USB_OHCI_HCD_MODULE */

static void __init colibri_pxa300_init(void)
static mfp_cfg_t colibri_pxa300_mmc_pin_config[] __initdata = {
GPIO7_MMC1_CLK,
GPIO14_MMC1_CMD,
GPIO3_MMC1_DAT0,
GPIO4_MMC1_DAT1,
GPIO5_MMC1_DAT2,
GPIO6_MMC1_DAT3,
};

void __init colibri_pxa300_init(void)
{
set_irq_type(COLIBRI_PXA300_ETH_IRQ, IRQ_TYPE_EDGE_FALLING);
pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_pin_config));
platform_add_devices(ARRAY_AND_SIZE(colibri_pxa300_devices));
colibri_pxa300_init_mmc();
colibri_pxa300_init_eth();
colibri_pxa300_init_ohci();
colibri_pxa3xx_init_mmc(ARRAY_AND_SIZE(colibri_pxa300_mmc_pin_config),
mfp_to_gpio(MFP_PIN_GPIO13));
}

MACHINE_START(COLIBRI300, "Toradex Colibri PXA300")
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75 changes: 75 additions & 0 deletions arch/arm/mach-pxa/colibri-pxa3xx.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,75 @@
/*
* arch/arm/mach-pxa/colibri-pxa3xx.c
*
* Common functions for all Toradex PXA3xx modules
*
* Daniel Mack <daniel@caiaq.de>
*
* 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/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <asm/sizes.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <mach/pxa3xx-regs.h>
#include <mach/mfp-pxa300.h>
#include <mach/colibri.h>
#include <mach/mmc.h>

#include "generic.h"
#include "devices.h"

#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
static int mmc_detect_pin;

static int colibri_pxa3xx_mci_init(struct device *dev,
irq_handler_t colibri_mmc_detect_int,
void *data)
{
int ret;

ret = gpio_request(mmc_detect_pin, "mmc card detect");
if (ret)
return ret;

gpio_direction_input(mmc_detect_pin);
ret = request_irq(gpio_to_irq(mmc_detect_pin), colibri_mmc_detect_int,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"MMC card detect", data);
if (ret) {
gpio_free(mmc_detect_pin);
return ret;
}

return 0;
}

static void colibri_pxa3xx_mci_exit(struct device *dev, void *data)
{
free_irq(mmc_detect_pin, data);
gpio_free(gpio_to_irq(mmc_detect_pin));
}

static struct pxamci_platform_data colibri_pxa3xx_mci_platform_data = {
.detect_delay = 20,
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.init = colibri_pxa3xx_mci_init,
.exit = colibri_pxa3xx_mci_exit,
};

void __init colibri_pxa3xx_init_mmc(mfp_cfg_t *pins, int len, int detect_pin)
{
pxa3xx_mfp_config(pins, len);
mmc_detect_pin = detect_pin;
pxa_set_mci_info(&colibri_pxa3xx_mci_platform_data);
}
#endif /* CONFIG_MMC_PXA || CONFIG_MMC_PXA_MODULE */

18 changes: 6 additions & 12 deletions arch/arm/mach-pxa/include/mach/colibri.h
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,12 @@
* common settings for all modules
*/

#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
extern void colibri_pxa3xx_init_mmc(mfp_cfg_t *pins, int len, int detect_pin);
#else
static inline void colibri_pxa3xx_init_mmc(mfp_cfg_t *, int, int) {}
#endif

/* physical memory regions */
#define COLIBRI_SDRAM_BASE 0xa0000000 /* SDRAM region */

Expand All @@ -15,17 +21,5 @@
#define COLIBRI_PXA270_ETH_IRQ \
gpio_to_irq(mfp_to_gpio(COLIBRI_PXA270_ETH_IRQ_GPIO))

/* definitions for Colibri PXA300 */

#define COLIBRI_PXA300_ETH_IRQ_GPIO 26
#define COLIBRI_PXA300_ETH_IRQ \
gpio_to_irq(mfp_to_gpio(COLIBRI_PXA300_ETH_IRQ_GPIO))

/* definitions for Colibri PXA320 */

#define COLIBRI_PXA320_ETH_IRQ_GPIO 36
#define COLIBRI_PXA320_ETH_IRQ \
gpio_to_irq(mfp_to_gpio(COLIBRI_PXA320_ETH_IRQ_GPIO))

#endif /* _COLIBRI_H_ */

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