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

/*
 * OMAP1 reset support
 */
#include <linux/kernel.h>
#include <linux/io.h>

#include <mach/hardware.h>
#include <plat/prcm.h>

void omap1_restart(char mode, const char *cmd)
{
	/*
	 * 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);
}
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 00:39:45 +00:00			`/*`
			`* 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 17:06:28 +00:00			`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 00:39:45 +00:00			`{`
			`/*`
			`* 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);`
			`}`