X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=arch%2Farm%2Fcpu%2Farm926ejs%2Fat91%2Fcpu.c;h=5e30f1dccc41496e47bf71d0c42f7dad7ab6f696;hp=087fe95179ee9f008f361eaa81f909a784a1ddc6;hb=c8f6d84d10d324e0b0462e09629f210b046e1018;hpb=125637c57265de980bd0d8e7d35f4b9c3d5264e1

diff --git a/arch/arm/cpu/arm926ejs/at91/cpu.c b/arch/arm/cpu/arm926ejs/at91/cpu.c
index 087fe95179..5e30f1dccc 100644
--- a/arch/arm/cpu/arm926ejs/at91/cpu.c
+++ b/arch/arm/cpu/arm926ejs/at91/cpu.c
@@ -27,6 +27,7 @@
 
 #include <asm/arch/hardware.h>
 #include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_pit.h>
 #include <asm/arch/at91_gpbr.h>
 #include <asm/arch/clk.h>
 #include <asm/arch/io.h>
@@ -40,6 +41,21 @@ int arch_cpu_init(void)
 	return at91_clock_init(CONFIG_SYS_AT91_MAIN_CLOCK);
 }
 
+void arch_preboot_os(void)
+{
+	ulong cpiv;
+	at91_pit_t *pit = (at91_pit_t *) AT91_PIT_BASE;
+
+	cpiv = AT91_PIT_MR_PIV_MASK(readl(&pit->piir));
+
+	/*
+	 * Disable PITC
+	 * Add 0x1000 to current counter to stop it faster
+	 * without waiting for wrapping back to 0
+	 */
+	writel(cpiv + 0x1000, &pit->mr);
+}
+
 #if defined(CONFIG_DISPLAY_CPUINFO)
 int print_cpuinfo(void)
 {