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barebox/arch/arm/mach-pxa/speed-pxa3xx.c

44 lines
784 B
C

/*
* clock.h - implementation of the PXA clock functions
*
* Copyright (C) 2014 by Robert Jarzmik <robert.jarzmik@free.fr>
*
* This file is released under the GPLv2
*
*/
#include <common.h>
#include <init.h>
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <mach/clock.h>
#include <mach/pxa-regs.h>
/* Crystal clock: 13MHz */
#define BASE_CLK 13000000
unsigned long pxa_get_uartclk(void)
{
return 14857000;
}
unsigned long pxa_get_pwmclk(void)
{
return BASE_CLK;
}
static int pxa3xx_clock_init(void)
{
unsigned long nand_rate = (cpu_is_pxa320()) ? 104000000 : 156000000;
struct clk *clk;
int ret;
clk = clk_fixed("nand", nand_rate);
ret = clk_register_clkdev(clk, NULL, "nand");
if (ret)
return ret;
return 0;
}
postcore_initcall(pxa3xx_clock_init);