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-rw-r--r--arch/arm/mach-pxa/eseries.c124
1 files changed, 124 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index d28849b50a1..dfce7d5b659 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -12,6 +12,9 @@
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
#include <asm/setup.h>
#include <asm/mach/arch.h>
@@ -21,8 +24,10 @@
#include <mach/hardware.h>
#include <mach/eseries-gpio.h>
#include <mach/udc.h>
+#include <mach/irda.h>
#include "generic.h"
+#include "clock.h"
/* Only e800 has 128MB RAM */
void __init eseries_fixup(struct machine_desc *desc,
@@ -43,3 +48,122 @@ struct pxa2xx_udc_mach_info e7xx_udc_mach_info = {
.gpio_pullup_inverted = 1
};
+static void e7xx_irda_transceiver_mode(struct device *dev, int mode)
+{
+ if (mode & IR_OFF) {
+ gpio_set_value(GPIO_E7XX_IR_OFF, 1);
+ pxa2xx_transceiver_mode(dev, mode);
+ } else {
+ pxa2xx_transceiver_mode(dev, mode);
+ gpio_set_value(GPIO_E7XX_IR_OFF, 0);
+ }
+}
+
+int e7xx_irda_init(void)
+{
+ int ret;
+
+ ret = gpio_request(GPIO_E7XX_IR_OFF, "IrDA power");
+ if (ret)
+ goto out;
+
+ ret = gpio_direction_output(GPIO_E7XX_IR_OFF, 0);
+ if (ret)
+ goto out;
+
+ e7xx_irda_transceiver_mode(NULL, IR_SIRMODE | IR_OFF);
+out:
+ return ret;
+}
+
+static void e7xx_irda_shutdown(struct device *dev)
+{
+ e7xx_irda_transceiver_mode(dev, IR_SIRMODE | IR_OFF);
+ gpio_free(GPIO_E7XX_IR_OFF);
+}
+
+struct pxaficp_platform_data e7xx_ficp_platform_data = {
+ .transceiver_cap = IR_SIRMODE | IR_OFF,
+ .transceiver_mode = e7xx_irda_transceiver_mode,
+ .shutdown = e7xx_irda_shutdown,
+};
+
+int eseries_tmio_enable(struct platform_device *dev)
+{
+ /* Reset - bring SUSPEND high before PCLR */
+ gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 0);
+ gpio_set_value(GPIO_ESERIES_TMIO_PCLR, 0);
+ msleep(1);
+ gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 1);
+ msleep(1);
+ gpio_set_value(GPIO_ESERIES_TMIO_PCLR, 1);
+ msleep(1);
+ return 0;
+}
+
+int eseries_tmio_disable(struct platform_device *dev)
+{
+ gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 0);
+ gpio_set_value(GPIO_ESERIES_TMIO_PCLR, 0);
+ return 0;
+}
+
+int eseries_tmio_suspend(struct platform_device *dev)
+{
+ gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 0);
+ return 0;
+}
+
+int eseries_tmio_resume(struct platform_device *dev)
+{
+ gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 1);
+ msleep(1);
+ return 0;
+}
+
+void eseries_get_tmio_gpios(void)
+{
+ gpio_request(GPIO_ESERIES_TMIO_SUSPEND, NULL);
+ gpio_request(GPIO_ESERIES_TMIO_PCLR, NULL);
+ gpio_direction_output(GPIO_ESERIES_TMIO_SUSPEND, 0);
+ gpio_direction_output(GPIO_ESERIES_TMIO_PCLR, 0);
+}
+
+/* TMIO controller uses the same resources on all e-series machines. */
+struct resource eseries_tmio_resources[] = {
+ [0] = {
+ .start = PXA_CS4_PHYS,
+ .end = PXA_CS4_PHYS + 0x1fffff,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_GPIO(GPIO_ESERIES_TMIO_IRQ),
+ .end = IRQ_GPIO(GPIO_ESERIES_TMIO_IRQ),
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+/* Some e-series hardware cannot control the 32K clock */
+static void clk_32k_dummy(struct clk *clk)
+{
+}
+
+static const struct clkops clk_32k_dummy_ops = {
+ .enable = clk_32k_dummy,
+ .disable = clk_32k_dummy,
+};
+
+static struct clk tmio_dummy_clk = {
+ .ops = &clk_32k_dummy_ops,
+ .rate = 32768,
+};
+
+static struct clk_lookup eseries_clkregs[] = {
+ INIT_CLKREG(&tmio_dummy_clk, NULL, "CLK_CK32K"),
+};
+
+void eseries_register_clks(void)
+{
+ clks_register(eseries_clkregs, ARRAY_SIZE(eseries_clkregs));
+}
+