[ARM] 3666/1: TRIZEPS4 [1/5] core

Patch from Jürgen Schindele

This patch adds support for Trizeps4 SoM and ConXS-evalboard
from "Keith und Koep" This DIMM-module is based on PXA270.

Signed-off-by: Jürgen Schindele <linux@schindele.name>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 134 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/leds-trizeps4.c b/arch/arm/mach-pxa/leds-trizeps4.c
new file mode 100644
index 00000000000..14cfc85e44b
--- /dev/null
+++ b/arch/arm/mach-pxa/leds-trizeps4.c
@@ -0,0 +1,134 @@
+/*
+ * linux/arch/arm/mach-pxa/leds-trizeps4.c
+ *
+ *  Author:	Jürgen Schindele
+ *  Created:	20 02, 2006
+ *  Copyright:	Jürgen Schindele
+ *
+ * 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/config.h>
+#include <linux/init.h>
+
+#include <asm/hardware.h>
+#include <asm/system.h>
+#include <asm/types.h>
+#include <asm/leds.h>
+
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/trizeps4.h>
+
+#include "leds.h"
+
+#define LED_STATE_ENABLED	1
+#define LED_STATE_CLAIMED	2
+
+#define SYS_BUSY		0x01
+#define HEARTBEAT		0x02
+#define BLINK			0x04
+
+static unsigned int led_state;
+static unsigned int hw_led_state;
+
+void trizeps4_leds_event(led_event_t evt)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	switch (evt) {
+	case led_start:
+		hw_led_state = 0;
+		pxa_gpio_mode( GPIO_SYS_BUSY_LED  | GPIO_OUT);		/* LED1 */
+		pxa_gpio_mode( GPIO_HEARTBEAT_LED | GPIO_OUT);		/* LED2 */
+		led_state = LED_STATE_ENABLED;
+		break;
+
+	case led_stop:
+		led_state &= ~LED_STATE_ENABLED;
+		break;
+
+	case led_claim:
+		led_state |= LED_STATE_CLAIMED;
+		hw_led_state = 0;
+		break;
+
+	case led_release:
+		led_state &= ~LED_STATE_CLAIMED;
+		hw_led_state = 0;
+		break;
+
+#ifdef CONFIG_LEDS_TIMER
+	case led_timer:
+		hw_led_state ^= HEARTBEAT;
+		break;
+#endif
+
+#ifdef CONFIG_LEDS_CPU
+	case led_idle_start:
+		hw_led_state &= ~SYS_BUSY;
+		break;
+
+	case led_idle_end:
+		hw_led_state |= SYS_BUSY;
+		break;
+#endif
+
+	case led_halted:
+		break;
+
+	case led_green_on:
+		hw_led_state |= BLINK;
+		break;
+
+	case led_green_off:
+		hw_led_state &= ~BLINK;
+		break;
+
+	case led_amber_on:
+		break;
+
+	case led_amber_off:
+		break;
+
+	case led_red_on:
+		break;
+
+	case led_red_off:
+		break;
+
+	default:
+		break;
+	}
+
+	if  (led_state & LED_STATE_ENABLED) {
+		switch (hw_led_state) {
+			case 0:
+				GPSR(GPIO_SYS_BUSY_LED)  |= GPIO_bit(GPIO_SYS_BUSY_LED);
+				GPSR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
+				break;
+			case 1:
+				GPCR(GPIO_SYS_BUSY_LED)  |= GPIO_bit(GPIO_SYS_BUSY_LED);
+				GPSR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
+				break;
+			case 2:
+				GPSR(GPIO_SYS_BUSY_LED)  |= GPIO_bit(GPIO_SYS_BUSY_LED);
+				GPCR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
+				break;
+			case 3:
+				GPCR(GPIO_SYS_BUSY_LED)  |= GPIO_bit(GPIO_SYS_BUSY_LED);
+				GPCR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
+				break;
+		}
+	}
+	else {
+		/* turn all off */
+		GPSR(GPIO_SYS_BUSY_LED)  |= GPIO_bit(GPIO_SYS_BUSY_LED);
+		GPSR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
+	}
+
+	local_irq_restore(flags);
+}