power: reset: at91-reset: make at91sam9g45_restart() generic (fcd0532f) · Commits · 戴 / test

drivers/power/reset/at91-reset.c

+6 −15

Original line number	Diff line number	Diff line
		@@ -105,32 +105,23 @@ static int at91sam9g45_restart(struct notifier_block *this, unsigned long mode,
		struct at91_reset *reset = container_of(this, struct at91_reset, nb);

		asm volatile(
		/*
		* Test wether we have a second RAM controller to care
		* about.
		*
		* First, test that we can dereference the virtual address.
		*/
		"cmp %1, #0\n\t"
		"beq 1f\n\t"

		/* Then, test that the RAM controller is enabled */
		"ldr r4, [%1]\n\t"
		"cmp r4, #0\n\t"

		/* Align to cache lines */
		".balign 32\n\t"

		/* Disable SDRAM0 accesses */
		"1: str %3, [%0, #" __stringify(AT91_DDRSDRC_RTR) "]\n\t"
		" tst %0, #0\n\t"
		" beq 1f\n\t"
		" str %3, [%0, #" __stringify(AT91_DDRSDRC_RTR) "]\n\t"
		/* Power down SDRAM0 */
		" str %4, [%0, %6]\n\t"
		/* Disable SDRAM1 accesses */
		"1: tst %1, #0\n\t"
		" beq 2f\n\t"
		" strne %3, [%1, #" __stringify(AT91_DDRSDRC_RTR) "]\n\t"
		/* Power down SDRAM1 */
		" strne %4, [%1, %6]\n\t"
		/* Reset CPU */
		" str %5, [%2, #" __stringify(AT91_RSTC_CR) "]\n\t"
		"2: str %5, [%2, #" __stringify(AT91_RSTC_CR) "]\n\t"

		" b .\n\t"
		: