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author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-12-04 14:01:02 +0100 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-12-04 14:01:02 +0100 |
commit | c09c9dd2e9c732658c744a802101d5c34fedde22 (patch) | |
tree | 89f930ede811e66e7a70761aaca079d779fed38a /arch/mips/xilfpga/time.c | |
parent | 727ae8be30b428082d3519817f4fb98b712d457d (diff) | |
parent | 06bf403de344a8a0811ebd24992d2a08022c5225 (diff) |
Merge branches 'acpi-pci' and 'pm-pci'
* acpi-pci:
x86/PCI/ACPI: Fix regression caused by commit 4d6b4e69a245
* pm-pci:
PCI / PM: Tune down retryable runtime suspend error messages
Diffstat (limited to 'arch/mips/xilfpga/time.c')
-rw-r--r-- | arch/mips/xilfpga/time.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/mips/xilfpga/time.c b/arch/mips/xilfpga/time.c new file mode 100644 index 000000000000..cbb3fca7b6fa --- /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 <Zubair.Kakakhel@imgtec.com> + * + * 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 <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/clocksource.h> +#include <linux/of.h> + +#include <asm/time.h> + +void __init plat_time_init(void) +{ + struct device_node *np; + struct clk *clk; + + of_clk_init(NULL); + clocksource_probe(); + + 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); +} |