| 1 | /* |
| 2 | * clock2xxx.c - OMAP2xxx-specific clock integration code |
| 3 | * |
| 4 | * Copyright (C) 2005-2008 Texas Instruments, Inc. |
| 5 | * Copyright (C) 2004-2010 Nokia Corporation |
| 6 | * |
| 7 | * Contacts: |
| 8 | * Richard Woodruff <r-woodruff2@ti.com> |
| 9 | * Paul Walmsley |
| 10 | * |
| 11 | * Based on earlier work by Tuukka Tikkanen, Tony Lindgren, |
| 12 | * Gordon McNutt and RidgeRun, Inc. |
| 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 version 2 as |
| 16 | * published by the Free Software Foundation. |
| 17 | */ |
| 18 | #undef DEBUG |
| 19 | |
| 20 | #include <linux/kernel.h> |
| 21 | #include <linux/errno.h> |
| 22 | #include <linux/clk.h> |
| 23 | #include <linux/io.h> |
| 24 | |
| 25 | #include "soc.h" |
| 26 | #include "clock.h" |
| 27 | #include "clock2xxx.h" |
| 28 | #include "cm.h" |
| 29 | #include "cm-regbits-24xx.h" |
| 30 | |
| 31 | struct clk_hw *dclk_hw; |
| 32 | /* |
| 33 | * Omap24xx specific clock functions |
| 34 | */ |
| 35 | |
| 36 | /* |
| 37 | * Switch the MPU rate if specified on cmdline. We cannot do this |
| 38 | * early until cmdline is parsed. XXX This should be removed from the |
| 39 | * clock code and handled by the OPP layer code in the near future. |
| 40 | */ |
| 41 | static int __init omap2xxx_clk_arch_init(void) |
| 42 | { |
| 43 | int ret; |
| 44 | |
| 45 | if (!cpu_is_omap24xx()) |
| 46 | return 0; |
| 47 | |
| 48 | ret = omap2_clk_switch_mpurate_at_boot("virt_prcm_set"); |
| 49 | if (!ret) |
| 50 | omap2_clk_print_new_rates("sys_ck", "dpll_ck", "mpu_ck"); |
| 51 | |
| 52 | return ret; |
| 53 | } |
| 54 | |
| 55 | omap_arch_initcall(omap2xxx_clk_arch_init); |
| 56 | |
| 57 | |