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>

9 files changed, 11 insertions, 166 deletions

diff --git a/board/BuS/vl_ma2sc/vl_ma2sc.c b/board/BuS/vl_ma2sc/vl_ma2sc.c
index e2ae6fd..412ff3b 100644
--- a/board/BuS/vl_ma2sc/vl_ma2sc.c
+++ b/board/BuS/vl_ma2sc/vl_ma2sc.c
@@ -16,7 +16,6 @@
 #include <asm/arch/at91sam9_smc.h>
 #include <asm/arch/at91_pmc.h>
 #include <asm/arch/at91_pio.h>
-#include <asm/arch/at91_rstc.h>
 #include <asm/arch/at91sam9263.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/at91_common.h>
@@ -76,25 +75,12 @@ static void vl_ma2sc_nand_hw_init(void)
 #ifdef CONFIG_MACB
 static void vl_ma2sc_macb_hw_init(void)
 {
-	unsigned long	erstl;
 	at91_pmc_t	*pmc	= (at91_pmc_t *) ATMEL_BASE_PMC;
-	at91_rstc_t	*rstc	= (at91_rstc_t *) ATMEL_BASE_RSTC;
+
 	/* Enable clock */
 	writel(1 << ATMEL_ID_EMAC, &pmc->pcer);
 
-	erstl = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK;
-
-	/* Need to reset PHY -> 500ms reset */
-	writel(AT91_RSTC_KEY | AT91_RSTC_MR_ERSTL(0x0D) |
-		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();
 
 	at91_macb_hw_init();
 }
diff --git a/board/afeb9260/afeb9260.c b/board/afeb9260/afeb9260.c
index e1b1c10..ea9575d 100644
--- a/board/afeb9260/afeb9260.c
+++ b/board/afeb9260/afeb9260.c
@@ -13,7 +13,6 @@
 #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/io.h>
 #include <asm/arch/hardware.h>
@@ -67,8 +66,6 @@ static void afeb9260_macb_hw_init(void)
 {
 	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 EMAC clock */
@@ -94,20 +91,7 @@ static void afeb9260_macb_hw_init(void)
 	       pin_to_mask(AT91_PIN_PA28),
 	       &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_PA14) |
diff --git a/board/atmel/at91sam9260ek/at91sam9260ek.c b/board/atmel/at91sam9260ek/at91sam9260ek.c
index 263de49..7f14af1 100644
--- a/board/atmel/at91sam9260ek/at91sam9260ek.c
+++ b/board/atmel/at91sam9260ek/at91sam9260ek.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 <atmel_mci.h>
 
@@ -73,8 +72,6 @@ static void at91sam9260ek_macb_hw_init(void)
 {
 	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 EMAC clock */
 	writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
@@ -98,21 +95,7 @@ static void at91sam9260ek_macb_hw_init(void)
 		pin_to_mask(AT91_PIN_PA28),
 		&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_PA14) |
diff --git a/board/atmel/at91sam9263ek/at91sam9263ek.c b/board/atmel/at91sam9263ek/at91sam9263ek.c
index 2e9246f..d42a173 100644
--- a/board/atmel/at91sam9263ek/at91sam9263ek.c
+++ b/board/atmel/at91sam9263ek/at91sam9263ek.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/at91_matrix.h>
 #include <asm/arch/at91_pio.h>
 #include <asm/arch/clk.h>
@@ -82,10 +81,9 @@ static void at91sam9263ek_nand_hw_init(void)
 #ifdef CONFIG_MACB
 static void at91sam9263ek_macb_hw_init(void)
 {
-	unsigned long 	erstl;
 	at91_pmc_t	*pmc	= (at91_pmc_t *) ATMEL_BASE_PMC;
 	at91_pio_t	*pio	= (at91_pio_t *) ATMEL_BASE_PIO;
-	at91_rstc_t	*rstc	= (at91_rstc_t *) ATMEL_BASE_RSTC;
+
 	/* Enable clock */
 	writel(1 << ATMEL_ID_EMAC, &pmc->pcer);
 
@@ -97,23 +95,10 @@ static void at91sam9263ek_macb_hw_init(void)
 	 *
 	 * PHY has internal pull-down
 	 */
-
 	writel(1 << 25, &pio->pioc.pudr);
 	writel((1 << 25) | (1 <<26), &pio->pioe.pudr);
 
-	erstl = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK;
-
-	/* Need to reset PHY -> 500ms reset */
-	writel(AT91_RSTC_KEY | AT91_RSTC_MR_ERSTL(0x0D) |
-		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(1 << 25, &pio->pioc.puer);
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 @@ static void at91sam9m10g45ek_macb_hw_init(void)
 {
 	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 @@ static void at91sam9m10g45ek_macb_hw_init(void)
 	       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) |
diff --git a/board/bluewater/snapper9260/snapper9260.c b/board/bluewater/snapper9260/snapper9260.c
index 8a6919d..bfde129 100644
--- a/board/bluewater/snapper9260/snapper9260.c
+++ b/board/bluewater/snapper9260/snapper9260.c
@@ -14,7 +14,6 @@
 #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 <net.h>
 #include <netdev.h>
@@ -31,8 +30,6 @@ static void macb_hw_init(void)
 {
 	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_EMAC0, &pmc->pcer);
@@ -54,18 +51,7 @@ static void macb_hw_init(void)
 	/* Enable ethernet power */
 	pca953x_set_val(0x28, IO_EXP_ETH_POWER, 0);
 
-	/* Need to reset PHY -> 500ms reset */
-	erstl = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK;
-	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();
 
 	/* Bring the ethernet out of reset */
 	pca953x_set_val(0x28, IO_EXP_ETH_RESET, 1);
diff --git a/board/calao/sbc35_a9g20/sbc35_a9g20.c b/board/calao/sbc35_a9g20/sbc35_a9g20.c
index ecf261c..2074a93 100644
--- a/board/calao/sbc35_a9g20/sbc35_a9g20.c
+++ b/board/calao/sbc35_a9g20/sbc35_a9g20.c
@@ -15,7 +15,6 @@
 #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>
 
 #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
@@ -77,8 +76,6 @@ static void sbc35_a9g20_macb_hw_init(void)
 {
 	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 EMAC clock */
 	writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
@@ -102,21 +99,7 @@ static void sbc35_a9g20_macb_hw_init(void)
 	       pin_to_mask(AT91_PIN_PA28),
 	       &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_PA14) |
diff --git a/board/eukrea/cpu9260/cpu9260.c b/board/eukrea/cpu9260/cpu9260.c
index 5e1524e..274f72d 100644
--- a/board/eukrea/cpu9260/cpu9260.c
+++ b/board/eukrea/cpu9260/cpu9260.c
@@ -17,7 +17,6 @@
 #include <asm/arch/at91_common.h>
 #include <asm/arch/at91_matrix.h>
 #include <asm/arch/at91_pmc.h>
-#include <asm/arch/at91_rstc.h>
 #include <asm/arch/at91_pio.h>
 #include <asm/arch/clk.h>
 #include <asm/arch/hardware.h>
@@ -89,29 +88,14 @@ static void cpu9260_nand_hw_init(void)
 #ifdef CONFIG_MACB
 static void cpu9260_macb_hw_init(void)
 {
-	unsigned long rstcmr;
 	at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
-	at91_rstc_t *rstc = (at91_rstc_t *) ATMEL_BASE_RSTC;
 
 	/* Enable clock */
 	writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
 
 	at91_set_pio_pullup(AT91_PIO_PORTA, 17, 1);
 
-	rstcmr = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK;
-
-	/* Need to reset PHY -> 500ms reset */
-	writel(AT91_RSTC_KEY | AT91_RSTC_MR_ERSTL(0xD) |
-				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 | rstcmr | AT91_RSTC_MR_URSTEN, &rstc->mr);
+	at91_phy_reset();
 
 	at91_macb_hw_init();
 }
diff --git a/board/taskit/stamp9g20/stamp9g20.c b/board/taskit/stamp9g20/stamp9g20.c
index 704a63b..27cdf77 100644
--- a/board/taskit/stamp9g20/stamp9g20.c
+++ b/board/taskit/stamp9g20/stamp9g20.c
@@ -19,7 +19,6 @@
 #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 <watchdog.h>
 
@@ -67,8 +66,6 @@ static void stamp9G20_nand_hw_init(void)
 static void stamp9G20_macb_hw_init(void)
 {
 	struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
-	struct at91_rstc *rstc = (struct at91_rstc *)ATMEL_BASE_RSTC;
-	unsigned long erstl;
 
 	/* Enable the PHY Chip via PA26 on the Stamp 2 Adaptor */
 	at91_set_gpio_output(AT91_PIN_PA26, 0);
@@ -91,33 +88,7 @@ static void stamp9G20_macb_hw_init(void)
 		pin_to_mask(AT91_PIN_PA28),
 		&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 of hardware reset */
-	unsigned long start = get_timer(0);
-	unsigned long timeout = 1000; /* 1000ms */
-
-	while (!(readl(&rstc->sr) & AT91_RSTC_SR_NRSTL)) {
-
-		/* avoid shutdown by watchdog */
-		WATCHDOG_RESET();
-		mdelay(10);
-
-		/* timeout for not getting stuck in an endless loop */
-		if (get_timer(start) >= timeout) {
-			puts("*** ERROR: Timeout waiting for PHY reset!\n");
-			break;
-		};
-	};
-
-	/* 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_PA14) |