X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=carlfw%2Fsrc%2Fmain.c;h=2c8ea9a30540acf7cf2744e9599943e4ad4caa37;hb=4401b7c39124120517162ec52da2006e0185b7a4;hp=b11f0489257068d3c21564c294e9835db30d2546;hpb=12d3f1ba6ba522cd1ef11483d813fe2c2e64f04b;p=carl9170fw.git

diff --git a/carlfw/src/main.c b/carlfw/src/main.c
index b11f048..2c8ea9a 100644
--- a/carlfw/src/main.c
+++ b/carlfw/src/main.c
@@ -45,6 +45,36 @@ static void timer_init(const unsigned int timer, const unsigned int interval)
 	orl(AR9170_TIMER_REG_INTERRUPT, BIT(timer));
 }
 
+void clock_set(enum cpu_clock_t clock_, bool on)
+{
+	/*
+	 * Word of Warning!
+	 * This setting does more than just mess with the CPU Clock.
+	 * So watch out, if you need _stable_ timer interrupts.
+	 */
+        if (fw.phy.frequency < 3000000)
+		set(AR9170_PWR_REG_PLL_ADDAC, 0x5163);
+        else
+                set(AR9170_PWR_REG_PLL_ADDAC, 0x5143);
+
+	fw.ticks_per_usec = GET_VAL(AR9170_PWR_PLL_ADDAC_DIV,
+		get(AR9170_PWR_REG_PLL_ADDAC));
+
+	set(AR9170_PWR_REG_CLOCK_SEL, (uint32_t) ((on ? 0x70 : 0x600) | clock_));
+
+	switch (clock_) {
+	case AHB_20_22MHZ:
+		fw.ticks_per_usec >>= 1;
+	case AHB_40MHZ_OSC:
+	case AHB_40_44MHZ:
+		fw.ticks_per_usec >>= 1;
+	case AHB_80_88MHZ:
+		break;
+	}
+
+	timer_init(1, (fw.ticks_per_usec * 25) >> 1);
+}
+
 static void init(void)
 {
 	led_init();
@@ -71,14 +101,9 @@ static void init(void)
 	orl(AR9170_MAC_REG_AFTER_PNP, 1);
 
 	/* Init watch dog control flag */
-#ifdef CONFIG_CARL9170FW_WATCHDOG
 	fw.watchdog_enable = 1;
 
 	set(AR9170_TIMER_REG_WATCH_DOG, AR9170_WATCH_DOG_TIMER);
-#else
-	fw.watchdog_enable = 0;
-	set(AR9170_TIMER_REG_WATCH_DOG, 0xffff);
-#endif /* CONFIG_CARL9170FW_WATCHDOG */
 
 #ifdef CONFIG_CARL9170FW_GPIO_INTERRUPT
 	fw.cached_gpio_state.gpio = get(AR9170_GPIO_REG_PORT_DATA) &
@@ -111,6 +136,10 @@ static void timer0_isr(void)
 #endif /* CONFIG_CARL9170FW_DEBUG_LED_HEARTBEAT */
 }
 
+static void timer1_isr(void)
+{
+}
+
 static void handle_timer(void)
 {
 	uint32_t intr;
@@ -130,6 +159,8 @@ static void handle_timer(void)
 
 	HANDLER(intr, BIT(0), timer0_isr);
 
+	HANDLER(intr, BIT(1), timer1_isr);
+
 	if (intr)
 		DBG("Unhandled Timer Event %x", (unsigned int) intr);
 
@@ -168,7 +199,7 @@ static void __noreturn main_loop(void)
  * we put _start() there with the linker script carl9170.lds.
  */
 
-void start(void)
+void __section(boot) start(void)
 {
 	clock_set(AHB_40MHZ_OSC, true);