[PATCH 08/13] PXA: Colibri: Toradex Colibri PXA270 CF support
Marek Vasut
marek.vasut at gmail.com
Sat Aug 21 02:22:15 EDT 2010
Dne St 18. srpna 2010 13:43:26 Daniel Mack napsal(a):
> Hi Marek,
>
> On Fri, Aug 13, 2010 at 06:32:39AM +0200, Marek Vasut wrote:
> > This driver also contains structures to eventually support PXA320. This
> > is planned to be added in a later patch.
> >
> > Signed-off-by: Marek Vasut <marek.vasut at gmail.com>
>
> I have currently no access to my Colibri hardware, but the changes to
> the code look sane and totally make sense to me. You can add my
>
> Acked-by: Daniel Mack <daniel at caiaq.de>
Hi Dan,
do I have this for all the colibri patches in the tree? Thanks
>
>
> Thanks,
> Daniel
>
> > ---
> >
> > arch/arm/mach-pxa/colibri-pxa270-evalboard.c | 18 ++
> > drivers/pcmcia/Kconfig | 2 +-
> > drivers/pcmcia/Makefile | 1 +
> > drivers/pcmcia/pxa2xx_colibri.c | 215
> > ++++++++++++++++++++++++++ 4 files changed, 235 insertions(+), 1
> > deletions(-)
> > create mode 100644 drivers/pcmcia/pxa2xx_colibri.c
> >
> > diff --git a/arch/arm/mach-pxa/colibri-pxa270-evalboard.c
> > b/arch/arm/mach-pxa/colibri-pxa270-evalboard.c index 0f3b632..6177ff5
> > 100644
> > --- a/arch/arm/mach-pxa/colibri-pxa270-evalboard.c
> > +++ b/arch/arm/mach-pxa/colibri-pxa270-evalboard.c
> > @@ -51,6 +51,24 @@ static mfp_cfg_t colibri_pxa270_evalboard_pin_config[]
> > __initdata = {
> >
> > GPIO89_USBH1_PEN,
> > GPIO119_USBH2_PWR,
> > GPIO120_USBH2_PEN,
> >
> > +
> > + /* PCMCIA */
> > + GPIO85_nPCE_1,
> > + GPIO54_nPCE_2,
> > + GPIO55_nPREG,
> > + GPIO50_nPIOR,
> > + GPIO51_nPIOW,
> > + GPIO49_nPWE,
> > + GPIO48_nPOE,
> > + GPIO57_nIOIS16,
> > + GPIO56_nPWAIT,
> > + GPIO104_PSKTSEL,
> > + GPIO53_GPIO, /* RESET */
> > + GPIO83_GPIO, /* BVD1 */
> > + GPIO82_GPIO, /* BVD2 */
> > + GPIO1_GPIO, /* READY */
> > + GPIO84_GPIO, /* DETECT */
> > + GPIO107_GPIO, /* PPEN */
> >
> > };
> >
> > /***********************************************************************
> > *******
> >
> > diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
> > index ef2f659..883623a 100644
> > --- a/drivers/pcmcia/Kconfig
> > +++ b/drivers/pcmcia/Kconfig
> > @@ -215,7 +215,7 @@ config PCMCIA_PXA2XX
> >
> > depends on (ARCH_LUBBOCK || MACH_MAINSTONE || PXA_SHARPSL \
> >
> > || MACH_ARMCORE || ARCH_PXA_PALM || TRIZEPS_PCMCIA \
> > || ARCOM_PCMCIA || ARCH_PXA_ESERIES || MACH_STARGATE2 \
> >
> > - || MACH_VPAC270 || MACH_BALLOON3)
> > + || MACH_VPAC270 || MACH_BALLOON3 || MACH_COLIBRI)
> >
> > select PCMCIA_SOC_COMMON
> > help
> >
> > Say Y here to include support for the PXA2xx PCMCIA controller
> >
> > diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
> > index 6a60773..0e989a1 100644
> > --- a/drivers/pcmcia/Makefile
> > +++ b/drivers/pcmcia/Makefile
> > @@ -71,6 +71,7 @@ pxa2xx-obj-$(CONFIG_MACH_E740) +=
pxa2xx_e740.o
> >
> > pxa2xx-obj-$(CONFIG_MACH_STARGATE2) += pxa2xx_stargate2.o
> > pxa2xx-obj-$(CONFIG_MACH_VPAC270) += pxa2xx_vpac270.o
> > pxa2xx-obj-$(CONFIG_MACH_BALLOON3) += pxa2xx_balloon3.o
> >
> > +pxa2xx-obj-$(CONFIG_MACH_COLIBRI) += pxa2xx_colibri.o
> >
> > obj-$(CONFIG_PCMCIA_PXA2XX) += pxa2xx_base.o
$(pxa2xx-obj-y)
> >
> > diff --git a/drivers/pcmcia/pxa2xx_colibri.c
> > b/drivers/pcmcia/pxa2xx_colibri.c new file mode 100644
> > index 0000000..8373816
> > --- /dev/null
> > +++ b/drivers/pcmcia/pxa2xx_colibri.c
> > @@ -0,0 +1,215 @@
> > +/*
> > + * linux/drivers/pcmcia/pxa2xx_colibri.c
> > + *
> > + * Driver for Toradex Colibri PXA270 CF socket
> > + *
> > + * Copyright (C) 2010 Marek Vasut <marek.vasut at gmail.com>
> > + *
> > + * 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/module.h>
> > +#include <linux/platform_device.h>
> > +#include <linux/delay.h>
> > +
> > +#include <asm/mach-types.h>
> > +
> > +#include <mach/gpio.h>
> > +
> > +#include "soc_common.h"
> > +
> > +#define COLIBRI270_RESET_GPIO 53
> > +#define COLIBRI270_PPEN_GPIO 107
> > +#define COLIBRI270_BVD1_GPIO 83
> > +#define COLIBRI270_BVD2_GPIO 82
> > +#define COLIBRI270_DETECT_GPIO 84
> > +#define COLIBRI270_READY_GPIO 1
> > +
> > +static struct {
> > + int reset_gpio;
> > + int ppen_gpio;
> > + int bvd1_gpio;
> > + int bvd2_gpio;
> > + int detect_gpio;
> > + int ready_gpio;
> > +} colibri_pcmcia_gpio;
> > +
> > +static struct pcmcia_irqs colibri_irqs[] = {
> > + {
> > + .sock = 0,
> > + .str = "PCMCIA CD"
> > + },
> > +};
> > +
> > +static int colibri_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
> > +{
> > + int ret;
> > +
> > + ret = gpio_request(colibri_pcmcia_gpio.detect_gpio, "DETECT");
> > + if (ret)
> > + goto err1;
> > + ret = gpio_direction_input(colibri_pcmcia_gpio.detect_gpio);
> > + if (ret)
> > + goto err2;
> > +
> > + ret = gpio_request(colibri_pcmcia_gpio.ready_gpio, "READY");
> > + if (ret)
> > + goto err2;
> > + ret = gpio_direction_input(colibri_pcmcia_gpio.ready_gpio);
> > + if (ret)
> > + goto err3;
> > +
> > + ret = gpio_request(colibri_pcmcia_gpio.bvd1_gpio, "BVD1");
> > + if (ret)
> > + goto err3;
> > + ret = gpio_direction_input(colibri_pcmcia_gpio.bvd1_gpio);
> > + if (ret)
> > + goto err4;
> > +
> > + ret = gpio_request(colibri_pcmcia_gpio.bvd2_gpio, "BVD2");
> > + if (ret)
> > + goto err4;
> > + ret = gpio_direction_input(colibri_pcmcia_gpio.bvd2_gpio);
> > + if (ret)
> > + goto err5;
> > +
> > + ret = gpio_request(colibri_pcmcia_gpio.ppen_gpio, "PPEN");
> > + if (ret)
> > + goto err5;
> > + ret = gpio_direction_output(colibri_pcmcia_gpio.ppen_gpio, 0);
> > + if (ret)
> > + goto err6;
> > +
> > + ret = gpio_request(colibri_pcmcia_gpio.reset_gpio, "RESET");
> > + if (ret)
> > + goto err6;
> > + ret = gpio_direction_output(colibri_pcmcia_gpio.reset_gpio, 1);
> > + if (ret)
> > + goto err7;
> > +
> > + colibri_irqs[0].irq = gpio_to_irq(colibri_pcmcia_gpio.detect_gpio);
> > + skt->socket.pci_irq = gpio_to_irq(colibri_pcmcia_gpio.ready_gpio);
> > +
> > + return soc_pcmcia_request_irqs(skt, colibri_irqs,
> > + ARRAY_SIZE(colibri_irqs));
> > +
> > +err7:
> > + gpio_free(colibri_pcmcia_gpio.detect_gpio);
> > +err6:
> > + gpio_free(colibri_pcmcia_gpio.ready_gpio);
> > +err5:
> > + gpio_free(colibri_pcmcia_gpio.bvd1_gpio);
> > +err4:
> > + gpio_free(colibri_pcmcia_gpio.bvd2_gpio);
> > +err3:
> > + gpio_free(colibri_pcmcia_gpio.reset_gpio);
> > +err2:
> > + gpio_free(colibri_pcmcia_gpio.ppen_gpio);
> > +err1:
> > + return ret;
> > +}
> > +
> > +static void colibri_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
> > +{
> > + gpio_free(colibri_pcmcia_gpio.detect_gpio);
> > + gpio_free(colibri_pcmcia_gpio.ready_gpio);
> > + gpio_free(colibri_pcmcia_gpio.bvd1_gpio);
> > + gpio_free(colibri_pcmcia_gpio.bvd2_gpio);
> > + gpio_free(colibri_pcmcia_gpio.reset_gpio);
> > + gpio_free(colibri_pcmcia_gpio.ppen_gpio);
> > +}
> > +
> > +static void colibri_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
> > + struct pcmcia_state *state)
> > +{
> > +
> > + state->detect = !!gpio_get_value(colibri_pcmcia_gpio.detect_gpio);
> > + state->ready = !!gpio_get_value(colibri_pcmcia_gpio.ready_gpio);
> > + state->bvd1 = !!gpio_get_value(colibri_pcmcia_gpio.bvd1_gpio);
> > + state->bvd2 = !!gpio_get_value(colibri_pcmcia_gpio.bvd2_gpio);
> > + state->wrprot = 0;
> > + state->vs_3v = 1;
> > + state->vs_Xv = 0;
> > +}
> > +
> > +static int
> > +colibri_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
> > + const socket_state_t *state)
> > +{
> > + gpio_set_value(colibri_pcmcia_gpio.ppen_gpio,
> > + !(state->Vcc == 33 && state->Vpp < 50));
> > + gpio_set_value(colibri_pcmcia_gpio.reset_gpio, state->flags &
> > SS_RESET); + return 0;
> > +}
> > +
> > +static void colibri_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
> > +{
> > +}
> > +
> > +static void colibri_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
> > +{
> > +}
> > +
> > +static struct pcmcia_low_level colibri_pcmcia_ops = {
> > + .owner = THIS_MODULE,
> > +
> > + .first = 0,
> > + .nr = 1,
> > +
> > + .hw_init = colibri_pcmcia_hw_init,
> > + .hw_shutdown = colibri_pcmcia_hw_shutdown,
> > +
> > + .socket_state = colibri_pcmcia_socket_state,
> > + .configure_socket = colibri_pcmcia_configure_socket,
> > +
> > + .socket_init = colibri_pcmcia_socket_init,
> > + .socket_suspend = colibri_pcmcia_socket_suspend,
> > +};
> > +
> > +static struct platform_device *colibri_pcmcia_device;
> > +
> > +static int __init colibri_pcmcia_init(void)
> > +{
> > + int ret;
> > +
> > + colibri_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
> > + if (!colibri_pcmcia_device)
> > + return -ENOMEM;
> > +
> > + /* Colibri PXA270 */
> > + if (machine_is_colibri()) {
> > + colibri_pcmcia_gpio.reset_gpio = COLIBRI270_RESET_GPIO;
> > + colibri_pcmcia_gpio.ppen_gpio = COLIBRI270_PPEN_GPIO;
> > + colibri_pcmcia_gpio.bvd1_gpio = COLIBRI270_BVD1_GPIO;
> > + colibri_pcmcia_gpio.bvd2_gpio = COLIBRI270_BVD2_GPIO;
> > + colibri_pcmcia_gpio.detect_gpio = COLIBRI270_DETECT_GPIO;
> > + colibri_pcmcia_gpio.ready_gpio = COLIBRI270_READY_GPIO;
> > + }
> > +
> > + ret = platform_device_add_data(colibri_pcmcia_device,
> > + &colibri_pcmcia_ops, sizeof(colibri_pcmcia_ops));
> > +
> > + if (!ret)
> > + ret = platform_device_add(colibri_pcmcia_device);
> > +
> > + if (ret)
> > + platform_device_put(colibri_pcmcia_device);
> > +
> > + return ret;
> > +}
> > +
> > +static void __exit colibri_pcmcia_exit(void)
> > +{
> > + platform_device_unregister(colibri_pcmcia_device);
> > +}
> > +
> > +module_init(colibri_pcmcia_init);
> > +module_exit(colibri_pcmcia_exit);
> > +
> > +MODULE_AUTHOR("Marek Vasut <marek.vasut at gmail.com>");
> > +MODULE_DESCRIPTION("PCMCIA support for Toradex Colibri PXA270");
> > +MODULE_ALIAS("platform:pxa2xx-pcmcia");
> > +MODULE_LICENSE("GPL");
More information about the linux-arm-kernel
mailing list