#include <common.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
+#include <asm/arch/sysctr.h>
#include <asm/arch/tegra.h>
#include <asm/arch-tegra/clk_rst.h>
#include <asm/arch-tegra/timer.h>
CLOCK_MAX_MUX = 8 /* number of source options for each clock */
};
-enum {
- MASK_BITS_31_30 = 2, /* num of bits used to specify clock source */
- MASK_BITS_31_29,
- MASK_BITS_29_28,
-};
-
/*
* Clock source mux for each clock type. This just converts our enum into
* a list of mux sources for use by the code.
writel(0x40000C10, &clkrst->crc_pll[CLOCK_ID_DISPLAY].pll_misc);
udelay(2);
}
+
+void arch_timer_init(void)
+{
+ struct sysctr_ctlr *sysctr = (struct sysctr_ctlr *)NV_PA_TSC_BASE;
+ u32 freq, val;
+
+ freq = clock_get_rate(CLOCK_ID_OSC);
+ debug("%s: osc freq is %dHz [0x%08X]\n", __func__, freq, freq);
+
+ /* ARM CNTFRQ */
+ asm("mcr p15, 0, %0, c14, c0, 0\n" : : "r" (freq));
+
+ /* Only T114 has the System Counter regs */
+ debug("%s: setting CNTFID0 to 0x%08X\n", __func__, freq);
+ writel(freq, &sysctr->cntfid0);
+
+ val = readl(&sysctr->cntcr);
+ val |= TSC_CNTCR_ENABLE | TSC_CNTCR_HDBG;
+ writel(val, &sysctr->cntcr);
+ debug("%s: TSC CNTCR = 0x%08X\n", __func__, val);
+}