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Commit 05d5970c authored by Wenyou Yang's avatar Wenyou Yang Committed by Nicolas Ferre
Browse files

ARM: at91/pm_slowclock: remove the unused code related with SLOWDOWN_MASTER_CLOCK 



The SLOWDOWN_MASTER_CLOCK definition is not used, remove the redundant code.

Signed-off-by: default avatarWenyou Yang <wenyou.yang@atmel.com>
Acked-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: default avatarSylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
parent 047794e1

arch/arm/mach-at91/pm_slowclock.S

+0 −37
Original line number Diff line number Diff line
@@ -11,20 +11,11 @@ 
 * published by the Free Software Foundation.

 *

 */



#include <linux/linkage.h>

#include <linux/clk/at91_pmc.h>

#include <mach/hardware.h>

#include <mach/at91_ramc.h>



/*

 * When SLOWDOWN_MASTER_CLOCK is defined we will also slow down the Master

 * clock during suspend by adjusting its prescalar and divisor.

 * NOTE: This hasn't been shown to be stable on SAM9s; and on the RM9200 there

 *       are errata regarding adjusting the prescalar and divisor.

 */

#undef SLOWDOWN_MASTER_CLOCK



pmc	.req	r0

sdramc	.req	r1

ramc1	.req	r2
@@ -177,18 +168,6 @@ sdr_sr_done: 


	wait_mckrdy



#ifdef SLOWDOWN_MASTER_CLOCK

	/*

	 * Set the Master Clock PRES and MDIV fields.

	 *

	 * See AT91RM9200 errata #27 and #28 for details.

	 */

	mov	tmp1, #0

	str	tmp1, [pmc, #AT91_PMC_MCKR]



	wait_mckrdy

#endif



	/* Save PLLA setting and disable it */

	ldr	tmp1, [pmc, #AT91_CKGR_PLLAR]

	str	tmp1, .saved_pllar
@@ -245,22 +224,6 @@ sdr_sr_done: 
	wait_pllalock

4:



#ifdef SLOWDOWN_MASTER_CLOCK

	/*

	 * First set PRES if it was not 0,

	 * than set CSS and MDIV fields.

	 *

	 * See AT91RM9200 errata #27 and #28 for details.

	 */

	ldr	tmp1, .saved_mckr

	tst	tmp1, #AT91_PMC_PRES

	beq	2f

	and	tmp1, tmp1, #AT91_PMC_PRES

	str	tmp1, [pmc, #AT91_PMC_MCKR]



	wait_mckrdy

#endif



	/*

	 * Restore master clock setting

	 */