mirror of https://github.com/hak5/openwrt-owl.git
210 lines
6.1 KiB
Diff
210 lines
6.1 KiB
Diff
From 76a102bd5c9d792db19c6c72eafdecea0311a0c9 Mon Sep 17 00:00:00 2001
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From: Craig Hughes <craig@gumstix.com>
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Date: Fri, 30 Oct 2009 14:16:27 -0400
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Subject: [PATCH] [ARM] pxa: Gumstix Verdex PCMCIA support
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Needed for the Libertas CS wireless device.
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Signed-off-by: Bobby Powers <bobbypowers@gmail.com>
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---
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drivers/pcmcia/Kconfig | 3 +-
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drivers/pcmcia/Makefile | 3 +
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drivers/pcmcia/pxa2xx_gumstix.c | 194 +++++++++++++++++++++++++++++++++++++++
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3 files changed, 199 insertions(+), 1 deletions(-)
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create mode 100644 drivers/pcmcia/pxa2xx_gumstix.c
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--- a/drivers/pcmcia/Kconfig
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+++ b/drivers/pcmcia/Kconfig
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@@ -217,7 +217,7 @@ config PCMCIA_PXA2XX
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|| MACH_ARMCORE || ARCH_PXA_PALM || TRIZEPS_PCMCIA \
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|| ARCOM_PCMCIA || ARCH_PXA_ESERIES || MACH_STARGATE2 \
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|| MACH_VPAC270 || MACH_BALLOON3 || MACH_COLIBRI \
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- || MACH_COLIBRI320 || MACH_H4700)
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+ || MACH_COLIBRI320 || MACH_H4700 || ARCH_GUMSTIX)
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select PCMCIA_SA1111 if ARCH_LUBBOCK && SA1111
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select PCMCIA_SOC_COMMON
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help
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--- a/drivers/pcmcia/Makefile
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+++ b/drivers/pcmcia/Makefile
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@@ -71,6 +71,9 @@ pxa2xx-obj-$(CONFIG_MACH_COLIBRI) += px
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pxa2xx-obj-$(CONFIG_MACH_COLIBRI320) += pxa2xx_colibri.o
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pxa2xx-obj-$(CONFIG_MACH_H4700) += pxa2xx_hx4700.o
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+pxa2xx-obj-$(CONFIG_MACH_GUMSTIX_VERDEX) += pxa2xx_cs.o
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+pxa2xx_cs-objs := pxa2xx_gumstix.o
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+
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obj-$(CONFIG_PCMCIA_PXA2XX) += pxa2xx_base.o $(pxa2xx-obj-y)
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obj-$(CONFIG_PCMCIA_XXS1500) += xxs1500_ss.o
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--- /dev/null
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+++ b/drivers/pcmcia/pxa2xx_gumstix.c
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@@ -0,0 +1,168 @@
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+/*
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+ * linux/drivers/pcmcia/pxa2xx_gumstix.c
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+ *
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+ * Gumstix PCMCIA specific routines. Based on Mainstone
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+ *
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+ * Copyright 2004, Craig Hughes <craig@gumstix.com>
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * published by the Free Software Foundation.
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/init.h>
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+#include <linux/kernel.h>
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+#include <linux/errno.h>
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+#include <linux/interrupt.h>
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+#include <linux/irq.h>
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+#include <linux/gpio.h>
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+
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+#include <linux/delay.h>
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+#include <linux/platform_device.h>
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+
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+#include <linux/gpio-pxa.h>
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+
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+#include <pcmcia/ss.h>
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+
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+#include <mach/hardware.h>
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+#include <asm/mach-types.h>
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+
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+#include <mach/pxa27x.h>
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+
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+#include <asm/io.h>
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+#include <mach/gpio.h>
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+#include <mach/gumstix.h>
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+#include "soc_common.h"
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+
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+#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)
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+
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+#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
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+#define GPLR(x) __REG2(0x40E00000, BANK_OFF((x) >> 5))
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+
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+static int net_cf_vx_mode = 0;
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+
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+static int gumstix_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
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+{
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+/* Note: The verdex_pcmcia_pin_config is moved to gumstix_verdex.c in order to use mfp_pxa2xx_config
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+ for board-specific pin configuration instead of the old deprecated pxa_gpio_mode function. Thus,
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+ only the IRQ init is still needed to be done here. */
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+ if (skt->nr == 0) {
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+ skt->socket.pci_irq = (net_cf_vx_mode == 0) ? GUMSTIX_S0_PRDY_nBSY_IRQ : GUMSTIX_S0_PRDY_nBSY_OLD_IRQ;
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+ skt->stat[SOC_STAT_CD].gpio = GUMSTIX_S0_nCD_IRQ;
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+ skt->stat[SOC_STAT_CD].name = "CF0 nCD";
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+ skt->stat[SOC_STAT_RDY].gpio = GUMSTIX_S0_nSTSCHG_IRQ;
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+ skt->stat[SOC_STAT_RDY].name = "CF0 nSTSCHG";
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+ } else {
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+ skt->socket.pci_irq = GUMSTIX_S1_PRDY_nBSY_IRQ;
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+ skt->stat[SOC_STAT_CD].gpio = GUMSTIX_S1_nCD_IRQ;
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+ skt->stat[SOC_STAT_CD].name = "CF1 nCD";
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+ skt->stat[SOC_STAT_RDY].gpio = GUMSTIX_S1_nSTSCHG_IRQ;
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+ skt->stat[SOC_STAT_RDY].name = "CF1 nSTSCHG";
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+ }
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+
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+ return 0;
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+}
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+
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+static void gumstix_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
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+{
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+ if (net_cf_vx_mode) {
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+ gpio_free(GPIO_GUMSTIX_CF_OLD_RESET);
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+ } else {
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+ gpio_free(GPIO_GUMSTIX_CF_RESET);
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+ }
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+
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+}
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+
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+static void gumstix_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
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+ struct pcmcia_state *state)
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+{
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+ unsigned int cd, prdy_nbsy, nbvd1;
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+ if(skt->nr == 0)
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+ {
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+ cd = GPIO_GUMSTIX_nCD_0;
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+ if(net_cf_vx_mode)
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+ prdy_nbsy = GPIO_GUMSTIX_PRDY_nBSY_0_OLD;
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+ else
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+ prdy_nbsy = GPIO_GUMSTIX_PRDY_nBSY_0;
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+ nbvd1 = GPIO_GUMSTIX_nBVD1_0;
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+ } else {
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+ cd = GPIO_GUMSTIX_nCD_1;
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+ prdy_nbsy = GPIO_GUMSTIX_PRDY_nBSY_1;
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+ nbvd1 = GPIO_GUMSTIX_nBVD1_1;
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+ }
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+ state->detect = !!gpio_get_value(cd);
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+ state->ready = !!gpio_get_value(prdy_nbsy);
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+ state->bvd1 = !!gpio_get_value(nbvd1);
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+ state->bvd2 = 1;
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+ state->vs_3v = 0;
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+ state->vs_Xv = 0;
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+ state->wrprot = 0;
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+}
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+
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+static int gumstix_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
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+ const socket_state_t *state)
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+{
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+ return 0;
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+}
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+
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+static struct pcmcia_low_level gumstix_pcmcia_ops = {
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+ .owner = THIS_MODULE,
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+ .hw_init = gumstix_pcmcia_hw_init,
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+ .hw_shutdown = gumstix_pcmcia_hw_shutdown,
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+ .socket_state = gumstix_pcmcia_socket_state,
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+ .configure_socket = gumstix_pcmcia_configure_socket,
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+ .nr = 2,
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+};
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+
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+static struct platform_device *gumstix_pcmcia_device;
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+
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+extern int __init gumstix_get_cf_cards(void);
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+
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+#ifdef CONFIG_MACH_GUMSTIX_VERDEX
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+extern int __init gumstix_check_if_netCF_vx(void);
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+#endif
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+
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+static int __init gumstix_pcmcia_init(void)
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+{
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+ int ret;
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+
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+#ifdef CONFIG_MACH_GUMSTIX_VERDEX
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+ net_cf_vx_mode = gumstix_check_if_netCF_vx();
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+#endif
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+
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+ gumstix_pcmcia_ops.nr = gumstix_get_cf_cards();
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+
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+ gumstix_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
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+ if (!gumstix_pcmcia_device)
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+ return -ENOMEM;
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+
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+ ret = platform_device_add_data(gumstix_pcmcia_device, &gumstix_pcmcia_ops,
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+ sizeof(gumstix_pcmcia_ops));
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+
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+ if (ret == 0) {
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+ printk(KERN_INFO "Registering gumstix PCMCIA interface.\n");
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+ ret = platform_device_add(gumstix_pcmcia_device);
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+ }
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+
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+ if (ret)
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+ platform_device_put(gumstix_pcmcia_device);
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+
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+ return ret;
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+}
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+
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+static void __exit gumstix_pcmcia_exit(void)
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+{
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+ /*
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+ * This call is supposed to free our gumstix_pcmcia_device.
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+ * Unfortunately platform_device don't have a free method, and
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+ * we can't assume it's free of any reference at this point so we
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+ * can't free it either.
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+ */
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+ platform_device_unregister(gumstix_pcmcia_device);
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+}
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+
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+fs_initcall(gumstix_pcmcia_init);
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+module_exit(gumstix_pcmcia_exit);
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+
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+MODULE_LICENSE("GPL");
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