at91: Add support for taskit AT91SAM9G20 boards.

This adds support for the AT91SAM9G20 boards by taskit GmbH.
Both boards, Stamp9G20 and PortuxG20, are integrated in one
file. PortuxG20 is basically a SBC built around the Stamp9G20.

Signed-off-by: Markus Hubig <mhubig@imko.de>
Cc: Andreas Bießmann <andreas.devel@googlemail.com>
Signed-off-by: Andreas Bießmann <andreas.deve@googlemail.com>

1 files changed, 138 insertions, 0 deletions

diff --git a/board/taskit/stamp9g20/led.c b/board/taskit/stamp9g20/led.c
new file mode 100644
index 0000000..197b4da
--- /dev/null
+++ b/board/taskit/stamp9g20/led.c
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2009 Wind River Systems, Inc.
+ * Tom Rix <Tom.Rix@windriver.com>
+ * (C) Copyright 2009
+ * Eric Benard <eric@eukrea.com>
+ *
+ * (C) Copyright 2012
+ * Markus Hubig <mhubig@imko.de>
+ * IMKO GmbH <www.imko.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/at91_pmc.h>
+#include <status_led.h>
+
+static unsigned int saved_state[3] = {STATUS_LED_OFF,
+	STATUS_LED_OFF, STATUS_LED_OFF};
+
+void coloured_LED_init(void)
+{
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+
+	/* Enable the clock */
+	writel(ATMEL_ID_PIOC, &pmc->pcer);
+
+	at91_set_gpio_output(CONFIG_RED_LED, 1);
+	at91_set_gpio_output(CONFIG_GREEN_LED, 1);
+	at91_set_gpio_output(CONFIG_YELLOW_LED, 1);
+
+	at91_set_gpio_value(CONFIG_RED_LED, 0);
+	at91_set_gpio_value(CONFIG_GREEN_LED, 1);
+	at91_set_gpio_value(CONFIG_YELLOW_LED, 0);
+}
+
+void red_led_on(void)
+{
+	at91_set_gpio_value(CONFIG_RED_LED, 1);
+	saved_state[STATUS_LED_RED] = STATUS_LED_ON;
+}
+
+void red_led_off(void)
+{
+	at91_set_gpio_value(CONFIG_RED_LED, 0);
+	saved_state[STATUS_LED_RED] = STATUS_LED_OFF;
+}
+
+void green_led_on(void)
+{
+	at91_set_gpio_value(CONFIG_GREEN_LED, 1);
+	saved_state[STATUS_LED_GREEN] = STATUS_LED_ON;
+}
+
+void green_led_off(void)
+{
+	at91_set_gpio_value(CONFIG_GREEN_LED, 0);
+	saved_state[STATUS_LED_GREEN] = STATUS_LED_OFF;
+}
+
+void yellow_led_on(void)
+{
+	at91_set_gpio_value(CONFIG_YELLOW_LED, 1);
+	saved_state[STATUS_LED_YELLOW] = STATUS_LED_ON;
+}
+
+void yellow_led_off(void)
+{
+	at91_set_gpio_value(CONFIG_YELLOW_LED, 0);
+	saved_state[STATUS_LED_YELLOW] = STATUS_LED_OFF;
+}
+
+void __led_init(led_id_t mask, int state)
+{
+	__led_set(mask, state);
+}
+
+void __led_toggle(led_id_t mask)
+{
+	if (STATUS_LED_RED == mask) {
+		if (STATUS_LED_ON == saved_state[STATUS_LED_RED])
+			red_led_off();
+		else
+			red_led_on();
+
+	} else if (STATUS_LED_GREEN == mask) {
+		if (STATUS_LED_ON == saved_state[STATUS_LED_GREEN])
+			green_led_off();
+		else
+			green_led_on();
+
+	} else if (STATUS_LED_YELLOW == mask) {
+		if (STATUS_LED_ON == saved_state[STATUS_LED_YELLOW])
+			yellow_led_off();
+		else
+			yellow_led_on();
+	}
+}
+
+void __led_set(led_id_t mask, int state)
+{
+	if (STATUS_LED_RED == mask) {
+		if (STATUS_LED_ON == state)
+			red_led_on();
+		else
+			red_led_off();
+
+	} else if (STATUS_LED_GREEN == mask) {
+		if (STATUS_LED_ON == state)
+			green_led_on();
+		else
+			green_led_off();
+
+	} else if (STATUS_LED_YELLOW == mask) {
+		if (STATUS_LED_ON == state)
+			yellow_led_on();
+		else
+			yellow_led_off();
+	}
+}