arm926ejs, at91: add common phy_reset function

add common phy reset code into a common function.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Andreas Bießmann <andreas.devel@googlemail.com>
Cc: Bo Shen <voice.shen@atmel.com>
Cc: Jens Scharsig <esw@bus-elektronik.de>
Cc: Sergey Lapin <slapin@ossfans.org>
Cc: Stelian Pop <stelian@popies.net>
Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Cc: Eric Benard <eric@eukrea.com>
Cc: Markus Hubig <mhubig@imko.de>
Acked-by: Jens Scharsig (BuS Elektronik) <esw@bus-elektronik.de>
Tested-by: Jens Scharsig (BuS Elektronik) <esw@bus-elektronik.de>
Tested-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
diff --git a/board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c b/board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c
index 6a071f6..b7e2efd 100644
--- a/board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c
+++ b/board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c
@@ -12,7 +12,6 @@
 #include <asm/arch/at91sam9_smc.h>
 #include <asm/arch/at91_common.h>
 #include <asm/arch/at91_pmc.h>
-#include <asm/arch/at91_rstc.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/clk.h>
 #include <lcd.h>
@@ -88,8 +87,6 @@
 {
 	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 	struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
-	struct at91_rstc *rstc = (struct at91_rstc *)ATMEL_BASE_RSTC;
-	unsigned long erstl;
 
 	/* Enable clock */
 	writel(1 << ATMEL_ID_EMAC, &pmc->pcer);
@@ -107,21 +104,7 @@
 	       pin_to_mask(AT91_PIN_PA13),
 	       &pioa->pudr);
 
-	erstl = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK;
-
-	/* Need to reset PHY -> 500ms reset */
-	writel(AT91_RSTC_KEY | AT91_RSTC_MR_ERSTL(13) |
-		AT91_RSTC_MR_URSTEN, &rstc->mr);
-
-	writel(AT91_RSTC_KEY | AT91_RSTC_CR_EXTRST, &rstc->cr);
-
-	/* Wait for end hardware reset */
-	while (!(readl(&rstc->sr) & AT91_RSTC_SR_NRSTL))
-		;
-
-	/* Restore NRST value */
-	writel(AT91_RSTC_KEY | erstl | AT91_RSTC_MR_URSTEN,
-		&rstc->mr);
+	at91_phy_reset();
 
 	/* Re-enable pull-up */
 	writel(pin_to_mask(AT91_PIN_PA15) |