Merge branch 'devel-stable' into devel

Conflicts:
	arch/arm/mach-pxa/clock.c
	arch/arm/mach-pxa/clock.h

6 files changed, 292 insertions, 20 deletions

diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index c80a7a6e7698..de886f3dfd39 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -215,7 +215,8 @@ 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 \
+                    || MACH_COLIBRI320)
         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 a565300a19c8..29935ea921df 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -71,6 +71,8 @@ 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-$(CONFIG_MACH_COLIBRI)               += pxa2xx_colibri.o
+pxa2xx-obj-$(CONFIG_MACH_COLIBRI320)            += pxa2xx_colibri.o
 
 obj-$(CONFIG_PCMCIA_PXA2XX)                     += pxa2xx_base.o $(pxa2xx-obj-y)
 
diff --git a/drivers/pcmcia/pxa2xx_balloon3.c b/drivers/pcmcia/pxa2xx_balloon3.c
index dbbdd0063202..453c54c97612 100644
--- a/drivers/pcmcia/pxa2xx_balloon3.c
+++ b/drivers/pcmcia/pxa2xx_balloon3.c
@@ -39,12 +39,10 @@ static struct pcmcia_irqs irqs[] = {
 static int balloon3_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 {
         uint16_t ver;
-        int ret;
-        static void __iomem *fpga_ver;
 
         ver = __raw_readw(BALLOON3_FPGA_VER);
-        if (ver > 0x0201)
-                pr_warn("The FPGA code, version 0x%04x, is newer than rel-0.3. "
+        if (ver < 0x4f08)
+                pr_warn("The FPGA code, version 0x%04x, is too old. "
                         "PCMCIA/CF support might be broken in this version!",
                         ver);
 
@@ -97,8 +95,9 @@ static void balloon3_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
 static int balloon3_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
                                        const socket_state_t *state)
 {
-        __raw_writew((state->flags & SS_RESET) ? BALLOON3_CF_RESET : 0,
-                        BALLOON3_CF_CONTROL_REG);
+        __raw_writew(BALLOON3_CF_RESET, BALLOON3_CF_CONTROL_REG |
+                        ((state->flags & SS_RESET) ?
+                        BALLOON3_FPGA_SETnCLR : 0));
         return 0;
 }
 
diff --git a/drivers/pcmcia/pxa2xx_base.c b/drivers/pcmcia/pxa2xx_base.c
index ae07b4db8a6e..3755e7c8c715 100644
--- a/drivers/pcmcia/pxa2xx_base.c
+++ b/drivers/pcmcia/pxa2xx_base.c
@@ -26,6 +26,7 @@
 #include <linux/platform_device.h>
 
 #include <mach/hardware.h>
+#include <mach/smemc.h>
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/system.h>
@@ -116,37 +117,49 @@ static inline u_int pxa2xx_pcmcia_cmd_time(u_int mem_clk_10khz,
 
 static int pxa2xx_pcmcia_set_mcmem( int sock, int speed, int clock )
 {
-        MCMEM(sock) = ((pxa2xx_mcxx_setup(speed, clock)
+        uint32_t val;
+
+        val = ((pxa2xx_mcxx_setup(speed, clock)
                 & MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT)
                 | ((pxa2xx_mcxx_asst(speed, clock)
                 & MCXX_ASST_MASK) << MCXX_ASST_SHIFT)
                 | ((pxa2xx_mcxx_hold(speed, clock)
                 & MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT);
 
+        __raw_writel(val, MCMEM(sock));
+
         return 0;
 }
 
 static int pxa2xx_pcmcia_set_mcio( int sock, int speed, int clock )
 {
-        MCIO(sock) = ((pxa2xx_mcxx_setup(speed, clock)
+        uint32_t val;
+
+        val = ((pxa2xx_mcxx_setup(speed, clock)
                 & MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT)
                 | ((pxa2xx_mcxx_asst(speed, clock)
                 & MCXX_ASST_MASK) << MCXX_ASST_SHIFT)
                 | ((pxa2xx_mcxx_hold(speed, clock)
                 & MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT);
 
+        __raw_writel(val, MCIO(sock));
+
         return 0;
 }
 
 static int pxa2xx_pcmcia_set_mcatt( int sock, int speed, int clock )
 {
-        MCATT(sock) = ((pxa2xx_mcxx_setup(speed, clock)
+        uint32_t val;
+
+        val = ((pxa2xx_mcxx_setup(speed, clock)
                 & MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT)
                 | ((pxa2xx_mcxx_asst(speed, clock)
                 & MCXX_ASST_MASK) << MCXX_ASST_SHIFT)
                 | ((pxa2xx_mcxx_hold(speed, clock)
                 & MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT);
 
+        __raw_writel(val, MCATT(sock));
+
         return 0;
 }
 
@@ -166,8 +179,8 @@ static int pxa2xx_pcmcia_set_mcxx(struct soc_pcmcia_socket *skt, unsigned int cl
 
 static int pxa2xx_pcmcia_set_timing(struct soc_pcmcia_socket *skt)
 {
-        unsigned int clk = get_memclk_frequency_10khz();
-        return pxa2xx_pcmcia_set_mcxx(skt, clk);
+        unsigned long clk = clk_get_rate(skt->clk);
+        return pxa2xx_pcmcia_set_mcxx(skt, clk / 10000);
 }
 
 #ifdef CONFIG_CPU_FREQ
@@ -205,19 +218,18 @@ pxa2xx_pcmcia_frequency_change(struct soc_pcmcia_socket *skt,
 static void pxa2xx_configure_sockets(struct device *dev)
 {
         struct pcmcia_low_level *ops = dev->platform_data;
-
         /*
          * We have at least one socket, so set MECR:CIT
          * (Card Is There)
          */
-        MECR |= MECR_CIT;
+        uint32_t mecr = MECR_CIT;
 
         /* Set MECR:NOS (Number Of Sockets) */
         if ((ops->first + ops->nr) > 1 ||
             machine_is_viper() || machine_is_arcom_zeus())
-                MECR |= MECR_NOS;
-        else
-                MECR &= ~MECR_NOS;
+                mecr |= MECR_NOS;
+
+        __raw_writel(mecr, MECR);
 }
 
 static const char *skt_names[] = {
@@ -270,24 +282,41 @@ static int pxa2xx_drv_pcmcia_probe(struct platform_device *dev)
         struct pcmcia_low_level *ops;
         struct skt_dev_info *sinfo;
         struct soc_pcmcia_socket *skt;
+        struct clk *clk;
 
         ops = (struct pcmcia_low_level *)dev->dev.platform_data;
-        if (!ops)
+        if (!ops) {
+                ret = -ENODEV;
+                goto err0;
+        }
+
+        if (cpu_is_pxa320() && ops->nr > 1) {
+                dev_err(&dev->dev, "pxa320 supports only one pcmcia slot");
+                ret = -EINVAL;
+                goto err0;
+        }
+
+        clk = clk_get(&dev->dev, NULL);
+        if (!clk)
                 return -ENODEV;
 
         pxa2xx_drv_pcmcia_ops(ops);
 
         sinfo = kzalloc(SKT_DEV_INFO_SIZE(ops->nr), GFP_KERNEL);
-        if (!sinfo)
+        if (!sinfo) {
+                clk_put(clk);
                 return -ENOMEM;
+        }
 
         sinfo->nskt = ops->nr;
+        sinfo->clk = clk;
 
         /* Initialize processor specific parameters */
         for (i = 0; i < ops->nr; i++) {
                 skt = &sinfo->skt[i];
 
                 skt->nr = ops->first + i;
+                skt->clk = clk;
                 skt->ops = ops;
                 skt->socket.owner = ops->owner;
                 skt->socket.dev.parent = &dev->dev;
@@ -295,18 +324,26 @@ static int pxa2xx_drv_pcmcia_probe(struct platform_device *dev)
 
                 ret = pxa2xx_drv_pcmcia_add_one(skt);
                 if (ret)
-                        break;
+                        goto err1;
         }
 
         if (ret) {
                 while (--i >= 0)
                         soc_pcmcia_remove_one(&sinfo->skt[i]);
                 kfree(sinfo);
+                clk_put(clk);
         } else {
                 pxa2xx_configure_sockets(&dev->dev);
                 dev_set_drvdata(&dev->dev, sinfo);
         }
 
+        return 0;
+
+err1:
+        while (--i >= 0)
+                soc_pcmcia_remove_one(&sinfo->skt[i]);
+        kfree(sinfo);
+err0:
         return ret;
 }
 
@@ -320,6 +357,7 @@ static int pxa2xx_drv_pcmcia_remove(struct platform_device *dev)
         for (i = 0; i < sinfo->nskt; i++)
                 soc_pcmcia_remove_one(&sinfo->skt[i]);
 
+        clk_put(sinfo->clk);
         kfree(sinfo);
         return 0;
 }
diff --git a/drivers/pcmcia/pxa2xx_colibri.c b/drivers/pcmcia/pxa2xx_colibri.c
new file mode 100644
index 000000000000..c3f72192af66
--- /dev/null
+++ b/drivers/pcmcia/pxa2xx_colibri.c
@@ -0,0 +1,229 @@
+/*
+ * linux/drivers/pcmcia/pxa2xx_colibri.c
+ *
+ * Driver for Toradex Colibri PXA270 CF socket
+ *
+ * Copyright (C) 2010 Marek Vasut <marek.vasut@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 <linux/gpio.h>
+
+#include <asm/mach-types.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
+
+#define COLIBRI320_RESET_GPIO   77
+#define COLIBRI320_PPEN_GPIO    57
+#define COLIBRI320_BVD1_GPIO    53
+#define COLIBRI320_BVD2_GPIO    79
+#define COLIBRI320_DETECT_GPIO  81
+#define COLIBRI320_READY_GPIO   29
+
+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;
+        /* Colibri PXA320 */
+        } else if (machine_is_colibri320()) {
+                colibri_pcmcia_gpio.reset_gpio  = COLIBRI320_RESET_GPIO;
+                colibri_pcmcia_gpio.ppen_gpio   = COLIBRI320_PPEN_GPIO;
+                colibri_pcmcia_gpio.bvd1_gpio   = COLIBRI320_BVD1_GPIO;
+                colibri_pcmcia_gpio.bvd2_gpio   = COLIBRI320_BVD2_GPIO;
+                colibri_pcmcia_gpio.detect_gpio = COLIBRI320_DETECT_GPIO;
+                colibri_pcmcia_gpio.ready_gpio  = COLIBRI320_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@gmail.com>");
+MODULE_DESCRIPTION("PCMCIA support for Toradex Colibri PXA270/PXA320");
+MODULE_ALIAS("platform:pxa2xx-pcmcia");
+MODULE_LICENSE("GPL");
diff --git a/drivers/pcmcia/soc_common.h b/drivers/pcmcia/soc_common.h
index bbcd5385a221..9daa73615c8b 100644
--- a/drivers/pcmcia/soc_common.h
+++ b/drivers/pcmcia/soc_common.h
@@ -10,6 +10,7 @@
 #define _ASM_ARCH_PCMCIA
 
 /* include the world */
+#include <linux/clk.h>
 #include <linux/cpufreq.h>
 #include <pcmcia/ss.h>
 #include <pcmcia/cistpl.h>
@@ -29,6 +30,7 @@ struct soc_pcmcia_socket {
          * Info from low level handler
          */
         unsigned int            nr;
+        struct clk              *clk;
 
         /*
          * Core PCMCIA state
@@ -56,6 +58,7 @@ struct soc_pcmcia_socket {
 
 struct skt_dev_info {
         int nskt;
+        struct clk *clk;
         struct soc_pcmcia_socket skt[0];
 };