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linux/arch/arm/mach-omap1/reset.c

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ARM: OMAP: Allow platforms to hook reset cleanly This adds a clean method to allow platforms to hook into the reset code if they require to. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-01-28 01:39:45 +01:00
/*
* OMAP1 reset support
*/
#include <linux/kernel.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <plat/prcm.h>
ARM: restart: omap: use new restart hook Hook these platforms restart code into the new restart hook rather than using arch_reset(). Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-05 18:06:28 +01:00
void omap1_restart(char mode, const char *cmd)
ARM: OMAP: Allow platforms to hook reset cleanly This adds a clean method to allow platforms to hook into the reset code if they require to. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-01-28 01:39:45 +01:00
{
/*
* 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);
}
omap_writew(1, ARM_RSTCT1);
}