brcm63xx: add linux 4.4 support

[openwrt.git] / target / linux / brcm63xx / patches-4.4 / 408-bcm63xx_enet-enable-rgmii-clock-on-external-ports.patch

diff --git a/target/linux/brcm63xx/patches-4.4/408-bcm63xx_enet-enable-rgmii-clock-on-external-ports.patch b/target/linux/brcm63xx/patches-4.4/408-bcm63xx_enet-enable-rgmii-clock-on-external-ports.patch
new file mode 100644 (file)
index 0000000..1cff9c1
--- /dev/null
+++ b/target/linux/brcm63xx/patches-4.4/408-bcm63xx_enet-enable-rgmii-clock-on-external-ports.patch
@@ -0,0 +1,53 @@
+From d8237d704fc25eb2fc25ef4403608b78c6a6d4be Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jonas.gorski@gmail.com>
+Date: Sun, 15 Jul 2012 20:08:57 +0200
+Subject: [PATCH 54/81] bcm63xx_enet: enable rgmii clock on external ports
+
+---
+ arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h |   13 +++++++++++++
+ drivers/net/ethernet/broadcom/bcm63xx_enet.c      |   12 ++++++++++++
+ 2 files changed, 25 insertions(+), 0 deletions(-)
+
+--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+@@ -967,6 +967,19 @@
+ #define ENETSW_PORTOV_FDX_MASK                (1 << 1)
+ #define ENETSW_PORTOV_LINKUP_MASK     (1 << 0)
+ 
++/* Port RGMII control register */
++#define ENETSW_RGMII_CTRL_REG(x)      (0x60 + (x))
++#define ENETSW_RGMII_CTRL_GMII_CLK_EN (1 << 7)
++#define ENETSW_RGMII_CTRL_MII_OVERRIDE_EN (1 << 6)
++#define ENETSW_RGMII_CTRL_MII_MODE_MASK       (3 << 4)
++#define ENETSW_RGMII_CTRL_RGMII_MODE  (0 << 4)
++#define ENETSW_RGMII_CTRL_MII_MODE    (1 << 4)
++#define ENETSW_RGMII_CTRL_RVMII_MODE  (2 << 4)
++#define ENETSW_RGMII_CTRL_TIMING_SEL_EN       (1 << 0)
++
++/* Port RGMII timing register */
++#define ENETSW_RGMII_TIMING_REG(x)    (0x68 + (x))
++
+ /* MDIO control register */
+ #define ENETSW_MDIOC_REG              (0xb0)
+ #define ENETSW_MDIOC_EXT_MASK         (1 << 16)
+--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+@@ -2229,6 +2229,18 @@ static int bcm_enetsw_open(struct net_de
+               priv->sw_port_link[i] = 0;
+       }
+ 
++      /* enable external ports */
++      for (i = ENETSW_RGMII_PORT0; i < priv->num_ports; i++) {
++              u8 rgmii_ctrl;
++
++              if (!priv->used_ports[i].used)
++                      continue;
++
++              rgmii_ctrl = enetsw_readb(priv, ENETSW_RGMII_CTRL_REG(i));
++              rgmii_ctrl |= ENETSW_RGMII_CTRL_GMII_CLK_EN;
++              enetsw_writeb(priv, rgmii_ctrl, ENETSW_RGMII_CTRL_REG(i));
++      }
++
+       /* reset mib */
+       val = enetsw_readb(priv, ENETSW_GMCR_REG);
+       val |= ENETSW_GMCR_RST_MIB_MASK;