diff options
| author | Wenyou Yang <wenyou.yang@atmel.com> | 2015-03-09 06:44:03 +0300 |
|---|---|---|
| committer | Nicolas Ferre <nicolas.ferre@atmel.com> | 2015-03-13 13:11:57 +0300 |
| commit | 05d5970c723cb6d11cef793c77cd07d86d5d4a94 (patch) | |
| tree | 06cc3b465c386cc7d2cd8893789c67a9e21dff1f /arch/arm/mach-at91/pm_slowclock.S | |
| parent | 047794e13632f177e864eba6160cecfbf3875cbe (diff) | |
| download | linux-05d5970c723cb6d11cef793c77cd07d86d5d4a94.tar.xz | |
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: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch/arm/mach-at91/pm_slowclock.S')
| -rw-r--r-- | arch/arm/mach-at91/pm_slowclock.S | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/arch/arm/mach-at91/pm_slowclock.S b/arch/arm/mach-at91/pm_slowclock.S index 931f0e302c03..6022d2d8c267 100644 --- a/arch/arm/mach-at91/pm_slowclock.S +++ b/arch/arm/mach-at91/pm_slowclock.S @@ -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 */ |