1 /* 2 * Hisilicon HiP04 clock driver 3 * 4 * Copyright (c) 2013-2014 Hisilicon Limited. 5 * Copyright (c) 2013-2014 Linaro Limited. 6 * 7 * Author: Haojian Zhuang <haojian.zhuang@linaro.org> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License along 20 * with this program; if not, write to the Free Software Foundation, Inc., 21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 22 * 23 */ 24 25 #include <linux/kernel.h> 26 #include <linux/clk-provider.h> 27 #include <linux/io.h> 28 #include <linux/of.h> 29 #include <linux/of_address.h> 30 #include <linux/of_device.h> 31 #include <linux/slab.h> 32 33 #include <dt-bindings/clock/hip04-clock.h> 34 35 #include "clk.h" 36 37 /* fixed rate clocks */ 38 static struct hisi_fixed_rate_clock hip04_fixed_rate_clks[] __initdata = { 39 { HIP04_OSC50M, "osc50m", NULL, 0, 50000000, }, 40 { HIP04_CLK_50M, "clk50m", NULL, 0, 50000000, }, 41 { HIP04_CLK_168M, "clk168m", NULL, 0, 168750000, }, 42 }; 43 44 static void __init hip04_clk_init(struct device_node *np) 45 { 46 struct hisi_clock_data *clk_data; 47 48 clk_data = hisi_clk_init(np, HIP04_NR_CLKS); 49 if (!clk_data) 50 return; 51 52 hisi_clk_register_fixed_rate(hip04_fixed_rate_clks, 53 ARRAY_SIZE(hip04_fixed_rate_clks), 54 clk_data); 55 } 56 CLK_OF_DECLARE(hip04_clk, "hisilicon,hip04-clock", hip04_clk_init); 57