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/*
* Copied from linux/include/asm-arm/arch-sa1100/system.h
* Copyright (c) 1999 Nicolas Pitre <nico@cam.org>
*/
#ifndef __ASM_ARCH_SYSTEM_H
#define __ASM_ARCH_SYSTEM_H
#include <linux/config.h>
#include <linux/clk.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/arch/prcm.h>
#ifndef CONFIG_MACH_VOICEBLUE
#define voiceblue_reset() do {} while (0)
#endif
static inline void arch_idle(void)
{
cpu_do_idle();
}
static inline void omap1_arch_reset(char mode)
{
/*
* Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
* "Global Software Reset Affects Traffic Controller Frequency".
*/
if (cpu_is_omap5912()) {
omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4),
DPLL_CTL);
omap_writew(0x8, ARM_RSTCT1);
}
if (machine_is_voiceblue())
voiceblue_reset();
else
omap_writew(1, ARM_RSTCT1);
}
static inline void omap2_arch_reset(char mode)
{
u32 rate;
struct clk *vclk, *sclk;
vclk = clk_get(NULL, "virt_prcm_set");
sclk = clk_get(NULL, "sys_ck");
rate = clk_get_rate(sclk);
clk_set_rate(vclk, rate); /* go to bypass for OMAP limitation */
RM_RSTCTRL_WKUP |= 2;
}
static inline void arch_reset(char mode)
{
if (!cpu_is_omap24xx())
omap1_arch_reset(mode);
else
omap2_arch_reset(mode);
}
#endif
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