pm9263: use macro instead of hardcode value for the lowlevel_init

optimize a few the RAM init

Signed-off-by: Ilko Iliev <iliev@ronetix.at>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/asm-arm/arch-at91/at91_pmc.h b/include/asm-arm/arch-at91/at91_pmc.h
index 07580da..a82955c 100644
--- a/include/asm-arm/arch-at91/at91_pmc.h
+++ b/include/asm-arm/arch-at91/at91_pmc.h
@@ -65,6 +65,7 @@
 #define			AT91_PMC_USBDIV_2		(1 << 28)
 #define			AT91_PMC_USBDIV_4		(2 << 28)
 #define		AT91_PMC_USB96M		(1     << 28)		/* Divider by 2 Enable (PLLB only) */
+#define		AT91_PMC_PLLA_WR_ERRATA	(1     << 29)		/* Bit 29 must always be set to 1 when programming the CKGR_PLLAR register */
 
 #define	AT91_PMC_MCKR		(AT91_PMC + 0x30)	/* Master Clock Register */
 #define		AT91_PMC_CSS		(3 <<  0)		/* Master Clock Selection */