Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / arm / cpu / arm920t / ep93xx / led.c

diff --git a/qemu/roms/u-boot/arch/arm/cpu/arm920t/ep93xx/led.c b/qemu/roms/u-boot/arch/arm/cpu/arm920t/ep93xx/led.c
new file mode 100644 (file)
index 0000000..6144729
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/cpu/arm920t/ep93xx/led.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2010, 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <asm/io.h>
+#include <asm/arch/ep93xx.h>
+#include <config.h>
+#include <status_led.h>
+
+static uint8_t saved_state[2] = {STATUS_LED_OFF, STATUS_LED_OFF};
+static uint32_t gpio_pin[2] = {1 << STATUS_LED_GREEN,
+                              1 << STATUS_LED_RED};
+
+inline void switch_LED_on(uint8_t led)
+{
+       register struct gpio_regs *gpio = (struct gpio_regs *)GPIO_BASE;
+
+       writel(readl(&gpio->pedr) | gpio_pin[led], &gpio->pedr);
+       saved_state[led] = STATUS_LED_ON;
+}
+
+inline void switch_LED_off(uint8_t led)
+{
+       register struct gpio_regs *gpio = (struct gpio_regs *)GPIO_BASE;
+
+       writel(readl(&gpio->pedr) & ~gpio_pin[led], &gpio->pedr);
+       saved_state[led] = STATUS_LED_OFF;
+}
+
+void red_led_on(void)
+{
+       switch_LED_on(STATUS_LED_RED);
+}
+
+void red_led_off(void)
+{
+       switch_LED_off(STATUS_LED_RED);
+}
+
+void green_led_on(void)
+{
+       switch_LED_on(STATUS_LED_GREEN);
+}
+
+void green_led_off(void)
+{
+       switch_LED_off(STATUS_LED_GREEN);
+}
+
+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();
+       }
+}
+
+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();
+       }
+}