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From: Renaud Barbier <renaud.barbier@ge.com>
To: barebox@lists.infradead.org
Subject: [PATCH 2/2] P2020rdb: eTSEC2 support
Date: Thu, 13 Sep 2012 18:41:51 +0100	[thread overview]
Message-ID: <1347558111-1633-3-git-send-email-renaud.barbier@ge.com> (raw)
In-Reply-To: <1347558111-1633-1-git-send-email-renaud.barbier@ge.com>

This patch defines the parameters to configure the eTSEC2 Ethernet port.
It also sets the TBI physical address of port eTSEC1 to eTSEC3 to prevent
the eTSEC2 PHY(address 0) from going into an undefined state.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
---
 arch/ppc/boards/freescale-p2020rdb/p2020rdb.c |   24 ++++++++++++++++++++++--
 1 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/arch/ppc/boards/freescale-p2020rdb/p2020rdb.c b/arch/ppc/boards/freescale-p2020rdb/p2020rdb.c
index 2431cb5..64170f8 100644
--- a/arch/ppc/boards/freescale-p2020rdb/p2020rdb.c
+++ b/arch/ppc/boards/freescale-p2020rdb/p2020rdb.c
@@ -63,9 +63,14 @@
 #define SYSCLK_50	50000000
 #define SYSCLK_100	100000000
 
-/* Ethernet. Use eTSEC3 */
+/* eTSEC2 and eTSEC 3 Ethernet port parameters */
 static struct gfar_info_struct gfar_info[] = {
 	{
+		.phyaddr = 0,
+		.tbiana = 0x1a0,
+		.tbicr = 0x9140,
+	},
+	{
 		.phyaddr = 1,
 		.tbiana = 0,
 		.tbicr = 0,
@@ -79,6 +84,9 @@ struct i2c_platform_data i2cplat = {
 
 static int devices_init(void)
 {
+	void __iomem *tsecregs;
+	int ix;
+
 	add_cfi_flash_device(DEVICE_ID_DYNAMIC, CFG_FLASH_BASE, 16 << 20, 0);
 
 	add_generic_device("i2c-fsl", 0, NULL, I2C1_BASE_ADDR,
@@ -86,8 +94,20 @@ static int devices_init(void)
 	add_generic_device("i2c-fsl", 1, NULL, I2C2_BASE_ADDR,
 			0x100, IORESOURCE_MEM, &i2cplat);
 
+	/*
+	 * Assign TBI physical address early because eTSEC2 has a PHY address
+	 * of 0. Otherwise, the PHY on eTSEC2 goes into a bad state since
+	 * the miidev driver does the first access.
+	 */
+	for (ix = 0; ix < 3; ix++) {
+		tsecregs = (void __iomem *)(GFAR_BASE_ADDR + (ix * 0x1000));
+		out_be32(tsecregs + 0x30, 0x1f);
+	}
+
+	/* eTSEC2 */
+	fsl_eth_init(2, &gfar_info[0]);
 	/* eTSEC3 */
-	fsl_eth_init(3, &gfar_info[0]);
+	fsl_eth_init(3, &gfar_info[1]);
 
 	devfs_add_partition("nor0", 0xf80000, 0x80000, DEVFS_PARTITION_FIXED,
 			    "self0");
-- 
1.7.1


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  parent reply	other threads:[~2012-09-13 17:42 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-13 17:41 [PATCH 0/2] P2020RDB eTSEC2 Renaud Barbier
2012-09-13 17:41 ` [PATCH 1/2] gianfar: region request returns NULL on already mapped region Renaud Barbier
2012-09-13 17:41 ` Renaud Barbier [this message]
2012-09-14  7:33 ` [PATCH 0/2] P2020RDB eTSEC2 Sascha Hauer

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