From 9937f5fff889bde488c5ffd238dcb49e9b9cc7b7 Mon Sep 17 00:00:00 2001 From: Zubair Lutfullah Kakakhel Date: Mon, 26 Oct 2015 11:30:56 +0000 Subject: MIPS: xilfpga: Add mipsfpga platform code The xilfpga platform will be DT only. Add required platform code. DT files have already been added separately. Signed-off-by: Zubair Lutfullah Kakakhel Cc: robh+dt@kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11364/ Signed-off-by: Ralf Baechle --- arch/mips/xilfpga/time.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 arch/mips/xilfpga/time.c (limited to 'arch/mips/xilfpga/time.c') diff --git a/arch/mips/xilfpga/time.c b/arch/mips/xilfpga/time.c new file mode 100644 index 0000000..a1c0fc8 --- /dev/null +++ b/arch/mips/xilfpga/time.c @@ -0,0 +1,41 @@ +/* + * Xilfpga clocksource/timer setup + * + * Copyright (C) 2015 Imagination Technologies + * Author: Zubair Lutfullah Kakakhel + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + */ + +#include +#include +#include +#include + +#include + +void __init plat_time_init(void) +{ + struct device_node *np; + struct clk *clk; + + of_clk_init(NULL); + clocksource_of_init(); + + np = of_get_cpu_node(0, NULL); + if (!np) { + pr_err("Failed to get CPU node\n"); + return; + } + + clk = of_clk_get(np, 0); + if (IS_ERR(clk)) { + pr_err("Failed to get CPU clock: %ld\n", PTR_ERR(clk)); + return; + } + + mips_hpt_frequency = clk_get_rate(clk) / 2; + clk_put(clk); +} -- cgit v1.1