Merge tag 'at91-fixes2' into at91-4.1-multiplatform

Second fixes batch for AT91 on 4.0:
- little fix for !MMU debug: may also help for randconfig
- fix of 2 errors in LCD clock definitions
- in PM code, not writing the key leads to not execute the action

arch/arm/boot/dts/sama5d4.dtsi

@@ -462,8 +462,8 @@ ddrck: ddrck {
 
 					lcdck: lcdck {
 						#clock-cells = <0>;
-						reg = <4>;
-						clocks = <&smd>;
+						reg = <3>;
+						clocks = <&mck>;
 					};
 
 					smdck: smdck {
@@ -771,7 +771,7 @@ dma1_clk: dma1_clk {
 						reg = <50>;
 					};
 
-					lcd_clk: lcd_clk {
+					lcdc_clk: lcdc_clk {
 						#clock-cells = <0>;
 						reg = <51>;
 					};

arch/arm/include/debug/at91.S

@@ -18,8 +18,11 @@
 #define AT91_DBGU 0xfc00c000 /* SAMA5D4_BASE_USART3 */
 #endif
 
-/* Keep in sync with mach-at91/include/mach/hardware.h */
+#ifdef CONFIG_MMU
 #define AT91_IO_P2V(x) ((x) - 0x01000000)
+#else
+#define AT91_IO_P2V(x) (x)
+#endif
 
 #define AT91_DBGU_SR		(0x14)	/* Status Register */
 #define AT91_DBGU_THR		(0x1c)	/* Transmitter Holding Register */

arch/arm/mach-at91/pm_slowclock.S

@@ -205,6 +205,7 @@ sdr_sr_done:
 	/* Turn off the main oscillator */
 	ldr	tmp1, [pmc, #AT91_CKGR_MOR]
 	bic	tmp1, tmp1, #AT91_PMC_MOSCEN
+	orr	tmp1, tmp1, #AT91_PMC_KEY
 	str	tmp1, [pmc, #AT91_CKGR_MOR]
 
 	/* Wait for interrupt */
@@ -213,6 +214,7 @@ sdr_sr_done:
 	/* Turn on the main oscillator */
 	ldr	tmp1, [pmc, #AT91_CKGR_MOR]
 	orr	tmp1, tmp1, #AT91_PMC_MOSCEN
+	orr	tmp1, tmp1, #AT91_PMC_KEY
 	str	tmp1, [pmc, #AT91_CKGR_MOR]
 
 	wait_moscrdy