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-rw-r--r--drivers/pcmcia/Kconfig3
-rw-r--r--drivers/pcmcia/Makefile2
-rw-r--r--drivers/pcmcia/pxa2xx_balloon3.c11
-rw-r--r--drivers/pcmcia/pxa2xx_base.c64
-rw-r--r--drivers/pcmcia/pxa2xx_colibri.c229
-rw-r--r--drivers/pcmcia/soc_common.h3
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];
};
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-24 17:02:46 +0300