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

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
......@@ -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
*/
......
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