Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 1 | /* linux/arch/arm/plat-s3c24xx/clock.c |
| 2 | * |
| 3 | * Copyright (c) 2004-2005 Simtec Electronics |
| 4 | * Ben Dooks <ben@simtec.co.uk> |
| 5 | * |
| 6 | * S3C24XX Core clock control support |
| 7 | * |
| 8 | * Based on, and code from linux/arch/arm/mach-versatile/clock.c |
| 9 | ** |
| 10 | ** Copyright (C) 2004 ARM Limited. |
| 11 | ** Written by Deep Blue Solutions Limited. |
| 12 | * |
| 13 | * |
| 14 | * This program is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * This program is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with this program; if not, write to the Free Software |
| 26 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 27 | */ |
| 28 | |
| 29 | #include <linux/init.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 30 | #include <linux/kernel.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 31 | #include <linux/clk.h> |
Russell King | fced80c | 2008-09-06 12:10:45 +0100 | [diff] [blame] | 32 | #include <linux/io.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 33 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 34 | #include <mach/hardware.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 35 | #include <asm/irq.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 36 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 37 | #include <mach/regs-clock.h> |
| 38 | #include <mach/regs-gpio.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 39 | |
Ben Dooks | e425382 | 2008-10-21 14:06:38 +0100 | [diff] [blame] | 40 | #include <plat/cpu-freq.h> |
| 41 | |
Ben Dooks | d5120ae | 2008-10-07 23:09:51 +0100 | [diff] [blame] | 42 | #include <plat/clock.h> |
Ben Dooks | a2b7ba9 | 2008-10-07 22:26:09 +0100 | [diff] [blame] | 43 | #include <plat/cpu.h> |
Ben Dooks | e24b864 | 2008-10-21 14:06:34 +0100 | [diff] [blame] | 44 | #include <plat/pll.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 45 | |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 46 | /* initalise all the clocks */ |
| 47 | |
Ben Dooks | e425382 | 2008-10-21 14:06:38 +0100 | [diff] [blame] | 48 | void __init_or_cpufreq s3c24xx_setup_clocks(unsigned long fclk, |
| 49 | unsigned long hclk, |
| 50 | unsigned long pclk) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 51 | { |
Ben Dooks | e425382 | 2008-10-21 14:06:38 +0100 | [diff] [blame] | 52 | clk_upll.rate = s3c24xx_get_pll(__raw_readl(S3C2410_UPLLCON), |
| 53 | clk_xtal.rate); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 54 | |
| 55 | clk_mpll.rate = fclk; |
| 56 | clk_h.rate = hclk; |
| 57 | clk_p.rate = pclk; |
| 58 | clk_f.rate = fclk; |
Ben Dooks | e425382 | 2008-10-21 14:06:38 +0100 | [diff] [blame] | 59 | } |