[ARM] pxa/zeus: make Viper pcmcia support more generic to support Zeus

The Arcom Zeus CF slot requires the same kind of support as the Viper.
To avoid code duplication, introduce a platform device that abstracts
the differences.

This also allows for the removal of the ugly export of viper_cf_rst().

Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c
index ae1c3d2f6d5b..5b986a8bd9e6 100644
--- a/arch/arm/mach-pxa/zeus.c
+++ b/arch/arm/mach-pxa/zeus.c
@@ -43,6 +43,7 @@
 #include <mach/mfp-pxa27x.h>
 #include <mach/pm.h>
 #include <mach/audio.h>
+#include <mach/arcom-pcmcia.h>
 #include <mach/zeus.h>
 
 #include "generic.h"
@@ -428,6 +429,33 @@ static struct platform_device zeus_leds_device = {
         },
 };
 
+static void zeus_cf_reset(int state)
+{
+        u16 cpld_state = __raw_readw(ZEUS_CPLD_CONTROL);
+
+        if (state)
+                cpld_state |= ZEUS_CPLD_CONTROL_CF_RST;
+        else
+                cpld_state &= ~ZEUS_CPLD_CONTROL_CF_RST;
+
+        __raw_writew(cpld_state, ZEUS_CPLD_CONTROL);
+}
+
+static struct arcom_pcmcia_pdata zeus_pcmcia_info = {
+        .cd_gpio        = ZEUS_CF_CD_GPIO,
+        .rdy_gpio       = ZEUS_CF_RDY_GPIO,
+        .pwr_gpio       = ZEUS_CF_PWEN_GPIO,
+        .reset          = zeus_cf_reset,
+};
+
+static struct platform_device zeus_pcmcia_device = {
+        .name           = "zeus-pcmcia",
+        .id             = -1,
+        .dev            = {
+                .platform_data  = &zeus_pcmcia_info,
+        },
+};
+
 static struct platform_device *zeus_devices[] __initdata = {
         &zeus_serial_device,
         &zeus_mtd_devices[0],
@@ -436,6 +464,7 @@ static struct platform_device *zeus_devices[] __initdata = {
         &zeus_sram_device,
         &pxa2xx_spi_ssp3_device,
         &zeus_leds_device,
+        &zeus_pcmcia_device,
 };
 
 /* AC'97 */