linux-stable/drivers/clk/clk-bcm2835.c
Linus Torvalds d01e4afdbb ARM: arm-soc: Cleanups on various subarchitectures
Cleanup patches for various ARM platforms and some of their associated
 drivers. There's also a branch in here that enables Freescale i.MX to be
 part of the multiplatform support -- the first "big" SoC that is moved
 over (more multiplatform work comes in a separate branch later during
 the merge window).
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups on various subarchitectures from Olof Johansson:
 "Cleanup patches for various ARM platforms and some of their associated
  drivers.  There's also a branch in here that enables Freescale i.MX to
  be part of the multiplatform support -- the first "big" SoC that is
  moved over (more multiplatform work comes in a separate branch later
  during the merge window)."

Conflicts fixed as per Olof, including a silent semantic one in
arch/arm/mach-omap2/board-generic.c (omap_prcm_restart() was renamed to
omap3xxx_restart(), and a new user of the old name was added).

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (189 commits)
  ARM: omap: fix typo on timer cleanup
  ARM: EXYNOS: Remove unused regs-mem.h file
  ARM: EXYNOS: Remove unused non-dt support for dwmci controller
  ARM: Kirkwood: Use hw_pci.ops instead of hw_pci.scan
  ARM: OMAP3: cm-t3517: use GPTIMER for system clock
  ARM: OMAP2+: timer: remove CONFIG_OMAP_32K_TIMER
  ARM: SAMSUNG: use devm_ functions for ADC driver
  ARM: EXYNOS: no duplicate mask/unmask in eint0_15
  ARM: S3C24XX: SPI clock channel setup is fixed for S3C2443
  ARM: EXYNOS: Remove i2c0 resource information and setting of device names
  ARM: Kirkwood: checkpatch cleanups
  ARM: Kirkwood: Fix sparse warnings.
  ARM: Kirkwood: Remove unused includes
  ARM: kirkwood: cleanup lsxl board includes
  ARM: integrator: use BUG_ON where possible
  ARM: integrator: push down SC dependencies
  ARM: integrator: delete static UART1 mapping
  ARM: integrator: delete SC mapping on the CP
  ARM: integrator: remove static CP syscon mapping
  ARM: integrator: remove static AP syscon mapping
  ...
2012-12-12 11:51:39 -08:00

59 lines
1.9 KiB
C

/*
* Copyright (C) 2010 Broadcom
* Copyright (C) 2012 Stephen Warren
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#include <linux/clk/bcm2835.h>
/*
* These are fixed clocks. They're probably not all root clocks and it may
* be possible to turn them on and off but until this is mapped out better
* it's the only way they can be used.
*/
void __init bcm2835_init_clocks(void)
{
struct clk *clk;
int ret;
clk = clk_register_fixed_rate(NULL, "sys_pclk", NULL, CLK_IS_ROOT,
250000000);
if (IS_ERR(clk))
pr_err("sys_pclk not registered\n");
clk = clk_register_fixed_rate(NULL, "apb_pclk", NULL, CLK_IS_ROOT,
126000000);
if (IS_ERR(clk))
pr_err("apb_pclk not registered\n");
clk = clk_register_fixed_rate(NULL, "uart0_pclk", NULL, CLK_IS_ROOT,
3000000);
if (IS_ERR(clk))
pr_err("uart0_pclk not registered\n");
ret = clk_register_clkdev(clk, NULL, "20201000.uart");
if (ret)
pr_err("uart0_pclk alias not registered\n");
clk = clk_register_fixed_rate(NULL, "uart1_pclk", NULL, CLK_IS_ROOT,
125000000);
if (IS_ERR(clk))
pr_err("uart1_pclk not registered\n");
ret = clk_register_clkdev(clk, NULL, "20215000.uart");
if (ret)
pr_err("uart1_pclk alias not registered\n");
}