[U-Boot] [PATCH v4 3/3] Armada100: Enable 88E3015 PHY support for GplugD

[Ajay Bhargav]

This patch adds support for 88E3015 PHY for Marvell GplugD board.
This patch depends on series of patch which adds support for Marvell
GuruPlug-Display.

Signed-off-by: Ajay Bhargav <ajay.bhargav at einfochips.com>
---
Changes for v2:
	- Not changed
Changes for v3:
	- code cleanup; removed unwated cast
Changes for v4:
	- Not changed

 board/Marvell/gplugd/gplugd.c |   33 ++++++++++++++++++++++++++++++++-
 include/configs/gplugd.h      |   14 ++++++++++++++
 2 files changed, 46 insertions(+), 1 deletions(-)

diff --git a/board/Marvell/gplugd/gplugd.c b/board/Marvell/gplugd/gplugd.c
index db4d776..a7cabcd 100644
--- a/board/Marvell/gplugd/gplugd.c
+++ b/board/Marvell/gplugd/gplugd.c
@@ -32,6 +32,8 @@
 #include <mvmfp.h>
 #include <asm/arch/mfp.h>
 #include <asm/arch/armada100.h>
+#include <asm/gpio.h>
+#include <miiphy.h>
 
 #ifdef CONFIG_ARMADA100_FEC
 #include <net.h>
@@ -83,6 +85,11 @@ int board_init(void)
 	gd->bd->bi_arch_number = MACH_TYPE_SHEEVAD;
 	/* adress of boot parameters */
 	gd->bd->bi_boot_params = armd1_sdram_base(0) + 0x100;
+	/* Assert PHY_RST# */
+	gpio_direction_output(CONFIG_SYS_GPIO_PHY_RST, GPIO_LOW);
+	udelay(10);
+	/* Deassert PHY_RST# */
+	gpio_set_value(CONFIG_SYS_GPIO_PHY_RST, GPIO_HIGH);
 	return 0;
 }
 
@@ -97,5 +104,29 @@ int board_eth_init(bd_t *bis)
 
 	return armada100_fec_register(ARMD1_FEC_BASE);
 }
-#endif /* CONFIG_ARMADA100_FEC */
+#ifdef CONFIG_RESET_PHY_R
+/* Configure and initialize PHY chip 88E3015 */
+void reset_phy(void)
+{
+	u16 phy_adr;
+	const char *name = "armd-fec0";
+
+	if (miiphy_set_current_dev(name))
+		return;
+
+	/* command to read PHY dev address */
+	if (miiphy_read(name, 0xff, 0xff, (u16 *) &phy_adr)) {
+		printf("Err..%s could not read PHY dev address\n", __func__);
+		return;
+	}
 
+	/* Set Ethernet LED in TX blink mode */
+	miiphy_write(name, phy_adr, PHY_LED_MAN_REG, 0x00);
+	miiphy_write(name, phy_adr, PHY_LED_PAR_SEL_REG, PHY_LED_VAL);
+
+	/* reset the phy */
+	miiphy_reset(name, phy_adr);
+	debug("88E3015 Initialized on %s\n", name);
+}
+#endif /* CONFIG_RESET_PHY_R */
+#endif /* CONFIG_ARMADA100_FEC */
diff --git a/include/configs/gplugd.h b/include/configs/gplugd.h
index f3b94d8..b63ffd5 100644
--- a/include/configs/gplugd.h
+++ b/include/configs/gplugd.h
@@ -80,6 +80,20 @@
 #define CONFIG_ROOTPATH				"/tftpboot"
 #define CONFIG_SYS_IMG_NAME			"uImage"
 
+/* GPIO Support */
+#define CONFIG_MARVELL_GPIO
+
+/* PHY configuration */
+#define CONFIG_MII
+#define CONFIG_CMD_MII
+#define CONFIG_RESET_PHY_R
+/* 88E3015 register definition */
+#define PHY_LED_PAR_SEL_REG		22
+#define PHY_LED_MAN_REG			25
+#define PHY_LED_VAL			0x5b	/* LINK LED1, ACT LED2 */
+/* GPIO Configuration for PHY */
+#define CONFIG_SYS_GPIO_PHY_RST		104	/* GPIO104 */
+
 /*
  * mv-common.h should be defined after CMD configs since it used them
  * to enable certain macros
-- 
1.7.0.4