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[ARM] 5021/1: at91: buildfix for sam9263 + PM 

Build fix for power management on at91sam9263:  it has two memory
controllers instead of just one, so it might have two banks of
DRAM to put into selfrefresh mode.  For now we continue to assume
only the first bank is populated.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
David Brownell 2008-04-24 20:58:33 +01:00 committed by Russell King
parent fe6cfde600
commit 136eb95577
1 changed files with 9 additions and 5 deletions
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14
arch/arm/mach-at91/pm.c
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@ -61,6 +61,15 @@ static inline void sdram_selfrefresh_enable(void)
#else
#include <asm/arch/at91sam9_sdramc.h>
#ifdef CONFIG_ARCH_AT91SAM9263
/*
* FIXME either or both the SDRAM controllers (EB0, EB1) might be in use;
* handle those cases both here and in the Suspend-To-RAM support.
*/
#define AT91_SDRAMC AT91_SDRAMC0
#warning Assuming EB1 SDRAM controller is *NOT* used
#endif
static u32 saved_lpr;
static inline void sdram_selfrefresh_enable(void)
@ -75,11 +84,6 @@ static inline void sdram_selfrefresh_enable(void)
#define sdram_selfrefresh_disable() at91_sys_write(AT91_SDRAMC_LPR, saved_lpr)
/*
* FIXME: The AT91SAM9263 has a second EBI controller which may have
* additional SDRAM. pm_slowclock.S will require a similar fix.
*/
#endif