meta-zaius: Patch U-Boot to enable BMC networking

Patch U-Boot to hard reset Zaius BMC's Broadcom PHY and to enable MAC2
that it's attached to. These are temporary Zaius-specific patches that
should be removed when the Zaius U-Boot target is complete.

Signed-off-by: Xo Wang <xow@google.com>
Change-Id: I0004b354d5774be1c244243e1bbbc527f195010c

3 files changed, 106 insertions, 0 deletions

diff --git a/meta-openbmc-machines/meta-openpower/meta-ingrasys/meta-zaius/recipes-bsp/u-boot/u-boot/0001-board-aspeed-Add-reset_phy-for-Zaius.patch b/meta-openbmc-machines/meta-openpower/meta-ingrasys/meta-zaius/recipes-bsp/u-boot/u-boot/0001-board-aspeed-Add-reset_phy-for-Zaius.patch
new file mode 100644
index 000000000..3b621e37e
--- /dev/null
+++ b/meta-openbmc-machines/meta-openpower/meta-ingrasys/meta-zaius/recipes-bsp/u-boot/u-boot/0001-board-aspeed-Add-reset_phy-for-Zaius.patch
@@ -0,0 +1,60 @@
+From 3cd9aa92ab8ddd230cf6a9a68a27a18705b6f57c Mon Sep 17 00:00:00 2001
+From: Xo Wang <xow@google.com>
+Date: Thu, 20 Oct 2016 16:26:29 -0700
+Subject: [PATCH 1/2] board/aspeed: Add reset_phy() for Zaius
+
+The Broadcom PHY for the Zaius BMC requires a hard reset after RGMII
+clocks are enabled. Add reset_phy() implementation and configure it to
+be called.
+
+Signed-off-by: Xo Wang <xow@google.com>
+---
+ board/aspeed/ast-g5/ast-g5.c | 19 +++++++++++++++++++
+ include/configs/ast-common.h |  3 +++
+ 2 files changed, 22 insertions(+)
+
+diff --git a/board/aspeed/ast-g5/ast-g5.c b/board/aspeed/ast-g5/ast-g5.c
+index da79d7b..433ad18 100644
+--- a/board/aspeed/ast-g5/ast-g5.c
++++ b/board/aspeed/ast-g5/ast-g5.c
+@@ -33,6 +33,25 @@ int dram_init(void)
+ 	return 0;
+ }
+ 
++void reset_phy(void)
++{
++	unsigned long reg;
++	/* D3 in GPIOA/B/C/D direction and data registers */
++	unsigned long phy_reset_mask = BIT(27);
++
++	/* Assert MAC2 PHY hardware reset */
++	/* Set pin low */
++	reg = readl(AST_GPIO_BASE | 0x00);
++	writel(reg & ~phy_reset_mask, AST_GPIO_BASE | 0x00);
++	/* Enable pin for output */
++	reg = readl(AST_GPIO_BASE | 0x04);
++	writel(reg | phy_reset_mask, AST_GPIO_BASE | 0x04);
++	udelay(3);
++	/* Set pin high */
++	reg = readl(AST_GPIO_BASE | 0x00);
++	writel(reg | phy_reset_mask, AST_GPIO_BASE | 0x00);
++}
++
+ #ifdef CONFIG_FTGMAC100
+ int board_eth_init(bd_t *bd)
+ {
+diff --git a/include/configs/ast-common.h b/include/configs/ast-common.h
+index b39ea33..3566f73 100644
+--- a/include/configs/ast-common.h
++++ b/include/configs/ast-common.h
+@@ -104,4 +104,7 @@
+ 	"spi_dma=yes\0" \
+ 	""
+ 
++/* Call reset_phy() */
++#define CONFIG_RESET_PHY_R	1
++
+ #endif	/* __AST_COMMON_CONFIG_H */
+-- 
+2.8.0.rc3.226.g39d4020
+
diff --git a/meta-openbmc-machines/meta-openpower/meta-ingrasys/meta-zaius/recipes-bsp/u-boot/u-boot/0002-board-aspeed-aspeednic-Use-MAC2-for-networking.patch b/meta-openbmc-machines/meta-openpower/meta-ingrasys/meta-zaius/recipes-bsp/u-boot/u-boot/0002-board-aspeed-aspeednic-Use-MAC2-for-networking.patch
new file mode 100644
index 000000000..2de2d8234
--- /dev/null
+++ b/meta-openbmc-machines/meta-openpower/meta-ingrasys/meta-zaius/recipes-bsp/u-boot/u-boot/0002-board-aspeed-aspeednic-Use-MAC2-for-networking.patch
@@ -0,0 +1,43 @@
+From cbb09e400a5283e5b543e2b01b8c0038890a5260 Mon Sep 17 00:00:00 2001
+From: Xo Wang <xow@google.com>
+Date: Thu, 20 Oct 2016 17:42:13 -0700
+Subject: [PATCH 2/2] board/aspeed, aspeednic: Use MAC2 for networking
+
+Enable and select MAC2 for aspeednic.
+
+Signed-off-by: Xo Wang <xow@google.com>
+---
+ drivers/net/aspeednic.c       | 4 ++--
+ include/configs/ast-g5-ncsi.h | 1 +
+ 2 files changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/net/aspeednic.c b/drivers/net/aspeednic.c
+index 8b85893..cff8370 100644
+--- a/drivers/net/aspeednic.c
++++ b/drivers/net/aspeednic.c
+@@ -18,8 +18,8 @@
+ /* From the board config file */
+ #define CONFIG_MAC1_PHY_SETTING         2
+ #define CONFIG_MAC2_PHY_SETTING         0
+-#define CONFIG_ASPEED_MAC_NUMBER  1
+-#define CONFIG_ASPEED_MAC_CONFIG  1 // config MAC1
++#define CONFIG_ASPEED_MAC_NUMBER  2
++#define CONFIG_ASPEED_MAC_CONFIG  2 // config MAC2
+ #define _PHY_SETTING_CONCAT(mac) CONFIG_MAC##mac##_PHY_SETTING
+ #define _GET_MAC_PHY_SETTING(mac) _PHY_SETTING_CONCAT(mac)
+ #define CONFIG_ASPEED_MAC_PHY_SETTING \
+diff --git a/include/configs/ast-g5-ncsi.h b/include/configs/ast-g5-ncsi.h
+index f73a8f1..1408618 100644
+--- a/include/configs/ast-g5-ncsi.h
++++ b/include/configs/ast-g5-ncsi.h
+@@ -22,6 +22,7 @@
+ /* Ethernet */
+ #define CONFIG_LIB_RAND
+ #define CONFIG_ASPEEDNIC
++#define CONFIG_MAC2_ENABLE
+ 
+ /* platform.S settings */
+ #define	CONFIG_DRAM_ECC_SIZE		0x10000000
+-- 
+2.8.0.rc3.226.g39d4020
+
diff --git a/meta-openbmc-machines/meta-openpower/meta-ingrasys/meta-zaius/recipes-bsp/u-boot/u-boot_%.bbappend b/meta-openbmc-machines/meta-openpower/meta-ingrasys/meta-zaius/recipes-bsp/u-boot/u-boot_%.bbappend
new file mode 100644
index 000000000..134fcd4de
--- /dev/null
+++ b/meta-openbmc-machines/meta-openpower/meta-ingrasys/meta-zaius/recipes-bsp/u-boot/u-boot_%.bbappend
@@ -0,0 +1,3 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/u-boot:"
+SRC_URI += "file://0001-board-aspeed-Add-reset_phy-for-Zaius.patch"
+SRC_URI += "file://0002-board-aspeed-aspeednic-Use-MAC2-for-networking.patch"