tegra: Init clocks even when SPL did not run

[platform/kernel/u-boot.git] / arch / arm / mach-tegra / tegra124 / clock.c

diff --git a/arch/arm/mach-tegra/tegra124/clock.c b/arch/arm/mach-tegra/tegra124/clock.c
index 5e44061..5ae718b 100644 (file)
--- a/arch/arm/mach-tegra/tegra124/clock.c
+++ b/arch/arm/mach-tegra/tegra124/clock.c
@@ -891,6 +891,24 @@ void clock_early_init(void)
        udelay(2);
 }
 
+/*
+ * clock_early_init_done - Check if clock_early_init() has been called
+ *
+ * Check a register that we set up to see if clock_early_init() has already
+ * been called.
+ *
+ * @return true if clock_early_init() was called, false if not
+ */
+bool clock_early_init_done(void)
+{
+       struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
+       u32 val;
+
+       val = readl(&clkrst->crc_sclk_brst_pol);
+
+       return val == 0x20002222;
+}
+
 void arch_timer_init(void)
 {
        struct sysctr_ctlr *sysctr = (struct sysctr_ctlr *)NV_PA_TSC_BASE;