C++ (Cpp) bcm2836_mbox_clock_get_rate Examples

Example #1

File: raspberry-pi-2.c Project: xboot/xboot

static void mach_logger(struct machine_t * mach, const char * buf, int count)
{
	virtual_addr_t virt = phys_to_virt(0x3f201000);
	static int initial = 0;
	int i;

	if(!initial)
	{
		u64_t clk = bcm2836_mbox_clock_get_rate(MBOX_CLOCK_ID_UART);
		u32_t div, rem, frac;

		div = clk / (16 * 115200);
		rem = clk % (16 * 115200);
		frac = (8 * rem / 115200) >> 1;
		frac += (8 * rem / 115200) & 1;

		write32(virt + 0x24, div);
		write32(virt + 0x28, frac);
		write32(virt + 0x2c, (0x3 << 5) | (0x0 << 3) | (0x0 << 1) | (0x1 << 4));
		write32(virt + 0x30, (1 << 0) | (1 << 8) | (1 << 9));
	}

Example #2

File: bcm2836-clk.c Project: IngenicC/xboot

static u64_t clk_mbox_get_rate(struct clk_t * clk, u64_t prate)
{
	struct clk_mbox_t * mclk = (struct clk_mbox_t *)clk->priv;
	return bcm2836_mbox_clock_get_rate(mclk->id);
}