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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 20:32:53 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 20:32:53 (GMT)
commitf6a26ae7699416d86bea8cb68ce413571e9cab3c (patch)
treee91b7a7c7513151fe583721f7435cc9f5cdc4f42 /drivers/pcmcia
parentcdd3a354a05b0c33fe33ab11a0fb0838396cad19 (diff)
parent48a5765e5104f1afd22c75c5030af3a6cf24b4c3 (diff)
downloadlinux-fsl-qoriq-f6a26ae7699416d86bea8cb68ce413571e9cab3c.tar.xz
Merge tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc board specific changes from Olof Johansson: "While we generally attempt to get rid of board specific files and replace them with device tree based descriptions, a lot of platforms have not come that far: In shmobile, we add two new board files because their recently started effort to add DT support has not proceeded enough to use it for all of the important hardware. In Kirkwood, we are adding support for new boards with a combination of DT and board file contents in multiple cases. pxa/mmp and imx are extending support for existing board files but not adding new ones." Fix up trivial conflicts in arch/arm/mach-{mmp/ttc_dkb.c,shmobile/{Kconfig,Makefile}} * tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (94 commits) ARM: shmobile: fix smp build ARM: kirkwood: Add support for RaidSonic IB-NAS6210/6220 using devicetree kirkwood: Add iconnect support orion/kirkwood: create a generic function for gpio led blinking kirkwood/orion: fix orion_gpio_set_blink ARM: kirkwood: Define DNS-320/DNS-325 NAND in fdt kirkwood: Allow nand to be configured via. devicetree mtd: Add orion_nand devicetree bindings ARM: kirkwood: Basic support for DNS-320 and DNS-325 ARM: mach-shmobile: Use DT_MACHINE for armadillo 800 eva ARM: mach-shmobile: Use DT_MACHINE for KZM9G ARM: pxa: hx4700: Add Synaptics NavPoint touchpad ARM: pxa: Use REGULATOR_SUPPLY macro ARM: mach-shmobile: kzm9g: enable SMP boot ARM: mach-shmobile: kzm9g: defconfig update ARM: mach-shmobile: kzm9g: add PCF8757 gpio-key ARM: mach-shmobile: kzm9g: add SDHI support ARM: mach-shmobile: kzm9g: add MMCIF support ARM: mach-shmobile: kzm9g: correct screen direction ARM: mach-shmobile: sh73a0.h: add GPIO_NR ...
Diffstat (limited to 'drivers/pcmcia')
-rw-r--r--drivers/pcmcia/Kconfig2
-rw-r--r--drivers/pcmcia/Makefile1
-rw-r--r--drivers/pcmcia/pxa2xx_hx4700.c121
3 files changed, 123 insertions, 1 deletions
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index bba3ab2..8fd255f 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -217,7 +217,7 @@ config PCMCIA_PXA2XX
|| MACH_ARMCORE || ARCH_PXA_PALM || TRIZEPS_PCMCIA \
|| ARCOM_PCMCIA || ARCH_PXA_ESERIES || MACH_STARGATE2 \
|| MACH_VPAC270 || MACH_BALLOON3 || MACH_COLIBRI \
- || MACH_COLIBRI320)
+ || MACH_COLIBRI320 || MACH_H4700)
select PCMCIA_SA1111 if ARCH_LUBBOCK && SA1111
select PCMCIA_SOC_COMMON
help
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
index 47525de..7745b51 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -69,6 +69,7 @@ pxa2xx-obj-$(CONFIG_MACH_VPAC270) += pxa2xx_vpac270.o
pxa2xx-obj-$(CONFIG_MACH_BALLOON3) += pxa2xx_balloon3.o
pxa2xx-obj-$(CONFIG_MACH_COLIBRI) += pxa2xx_colibri.o
pxa2xx-obj-$(CONFIG_MACH_COLIBRI320) += pxa2xx_colibri.o
+pxa2xx-obj-$(CONFIG_MACH_H4700) += pxa2xx_hx4700.o
obj-$(CONFIG_PCMCIA_PXA2XX) += pxa2xx_base.o $(pxa2xx-obj-y)
diff --git a/drivers/pcmcia/pxa2xx_hx4700.c b/drivers/pcmcia/pxa2xx_hx4700.c
new file mode 100644
index 0000000..7dfef3e
--- /dev/null
+++ b/drivers/pcmcia/pxa2xx_hx4700.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2012 Paul Parsons <lost.distance@yahoo.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/err.h>
+#include <linux/gpio.h>
+#include <linux/irq.h>
+
+#include <asm/mach-types.h>
+#include <mach/hx4700.h>
+
+#include "soc_common.h"
+
+static struct gpio gpios[] = {
+ { GPIO114_HX4700_CF_RESET, GPIOF_OUT_INIT_LOW, "CF reset" },
+ { EGPIO4_CF_3V3_ON, GPIOF_OUT_INIT_LOW, "CF 3.3V enable" },
+};
+
+static int hx4700_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+ int ret;
+
+ ret = gpio_request_array(gpios, ARRAY_SIZE(gpios));
+ if (ret)
+ goto out;
+
+ /*
+ * IRQ type must be set before soc_pcmcia_hw_init() calls request_irq().
+ * The asic3 default IRQ type is level trigger low level detect, exactly
+ * the the signal present on GPIOD4_CF_nCD when a CF card is inserted.
+ * If the IRQ type is not changed, the asic3 interrupt handler will loop
+ * repeatedly because it is unable to clear the level trigger interrupt.
+ */
+ irq_set_irq_type(gpio_to_irq(GPIOD4_CF_nCD), IRQ_TYPE_EDGE_BOTH);
+
+ skt->stat[SOC_STAT_CD].gpio = GPIOD4_CF_nCD;
+ skt->stat[SOC_STAT_CD].name = "PCMCIA CD";
+ skt->stat[SOC_STAT_RDY].gpio = GPIO60_HX4700_CF_RNB;
+ skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready";
+
+out:
+ return ret;
+}
+
+static void hx4700_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+ gpio_free_array(gpios, ARRAY_SIZE(gpios));
+}
+
+static void hx4700_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+ struct pcmcia_state *state)
+{
+ state->vs_3v = 1;
+ state->vs_Xv = 0;
+}
+
+static int hx4700_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+ const socket_state_t *state)
+{
+ switch (state->Vcc) {
+ case 0:
+ gpio_set_value(EGPIO4_CF_3V3_ON, 0);
+ break;
+ case 33:
+ gpio_set_value(EGPIO4_CF_3V3_ON, 1);
+ break;
+ default:
+ printk(KERN_ERR "pcmcia: Unsupported Vcc: %d\n", state->Vcc);
+ return -EINVAL;
+ }
+
+ gpio_set_value(GPIO114_HX4700_CF_RESET, (state->flags & SS_RESET) != 0);
+
+ return 0;
+}
+
+static struct pcmcia_low_level hx4700_pcmcia_ops = {
+ .owner = THIS_MODULE,
+ .nr = 1,
+ .hw_init = hx4700_pcmcia_hw_init,
+ .hw_shutdown = hx4700_pcmcia_hw_shutdown,
+ .socket_state = hx4700_pcmcia_socket_state,
+ .configure_socket = hx4700_pcmcia_configure_socket,
+};
+
+static struct platform_device *hx4700_pcmcia_device;
+
+static int __init hx4700_pcmcia_init(void)
+{
+ struct platform_device *pdev;
+
+ if (!machine_is_h4700())
+ return -ENODEV;
+
+ pdev = platform_device_register_data(NULL, "pxa2xx-pcmcia", -1,
+ &hx4700_pcmcia_ops, sizeof(hx4700_pcmcia_ops));
+ if (IS_ERR(pdev))
+ return PTR_ERR(pdev);
+
+ hx4700_pcmcia_device = pdev;
+
+ return 0;
+}
+
+static void __exit hx4700_pcmcia_exit(void)
+{
+ platform_device_unregister(hx4700_pcmcia_device);
+}
+
+module_init(hx4700_pcmcia_init);
+module_exit(hx4700_pcmcia_exit);
+
+MODULE_AUTHOR("Paul Parsons <lost.distance@yahoo.com>");
+MODULE_DESCRIPTION("HP iPAQ hx4700 PCMCIA driver");
+MODULE_LICENSE("GPL");