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-rw-r--r--arch/arm/cpu/arm926ejs/at91/cpu.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/at91/cpu.c b/arch/arm/cpu/arm926ejs/at91/cpu.c
index 087fe95..5e30f1d 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)
{