kirkwood: ib62x0: Invert SATA activity LEDs

The hardware design of the IB-NAS62x0 causes the SATA activity
LEDs to be on when idle by default.  Reverse the polarity of the
activity LEDs in early init.

Signed-off-by: Simon Baatz <gmbnomis@gmail.com>
Cc: Luka Perkov <uboot@lukaperkov.net>
Cc: Prafulla Wadaskar <prafulla@marvell.com>
Acked-by: Luka Perkov <uboot@lukaperkov.net>

board/raidsonic/ib62x0/ib62x0.c

@@ -23,6 +23,7 @@
 
 #include <common.h>
 #include <miiphy.h>
+#include <asm/io.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/kirkwood.h>
 #include <asm/arch/mpp.h>
@@ -41,6 +42,8 @@ int board_early_init_f(void)
 			IB62x0_OE_VAL_HIGH,
 			IB62x0_OE_LOW, IB62x0_OE_HIGH);
 
+	/* Set SATA activity LEDs to default off */
+	writel(MVSATAHC_LED_POLARITY_CTRL, MVSATAHC_LED_CONF_REG);
 	/* Multi-Purpose Pins Functionality configuration */
 	u32 kwmpp_config[] = {
 		MPP0_NF_IO2,

board/raidsonic/ib62x0/ib62x0.h

@@ -37,4 +37,8 @@
 #define MV88E1116_RGMII_TXTM_CTRL	(1 << 4)
 #define MV88E1116_RGMII_RXTM_CTRL	(1 << 5)
 
+/* SATAHC related */
+#define MVSATAHC_LED_CONF_REG       (MV_SATA_BASE + 0x2C)
+#define MVSATAHC_LED_POLARITY_CTRL  (1 << 3)
+
 #endif /* __IB62x0_H */