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authorjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2014-04-13 20:41:52 +0000
committerjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2014-04-13 20:41:52 +0000
commit040067669fa6cae8b77cf5642f2d66eb1e638e9c (patch)
treeab8f4c56f97d5998d9929854605b564a28960faa /target/linux/ar71xx
parentf72a16ed4bf74f69be2bb2b60236520eeb5516af (diff)
ar71xx: rb91x: fix ethernet packet loss issues
The RB91x boards are suffering from ethernet packet loss after a cold boot. The cause of the problem is that the AR8035 PHYs requires special register settings to work reliably on these boards. Enable the RGMII TX, RX delays and disable SmartEE functionality of the AR8035 PHYs. Also enable the RXD delay in the ETH_CFG register to fix the issue. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40509 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ar71xx')
-rw-r--r--target/linux/ar71xx/files/arch/mips/ath79/mach-rb91x.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb91x.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb91x.c
index 75382bef93..9ef5c4455e 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb91x.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb91x.c
@@ -24,6 +24,7 @@
#include <linux/gpio.h>
#include <linux/platform_data/gpio-latch.h>
#include <linux/platform_data/rb91x_nand.h>
+#include <linux/platform_data/phy-at803x.h>
#include <asm/prom.h>
#include <asm/mach-ath79/ath79.h>
@@ -223,6 +224,20 @@ static struct gpio_led rb711gr100_leds[] __initdata = {
},
};
+static struct at803x_platform_data rb91x_at803x_data = {
+ .disable_smarteee = 1,
+ .enable_rgmii_rx_delay = 1,
+ .enable_rgmii_tx_delay = 1,
+};
+
+static struct mdio_board_info rb91x_mdio0_info[] = {
+ {
+ .bus_id = "ag71xx-mdio.0",
+ .phy_addr = 0,
+ .platform_data = &rb91x_at803x_data,
+ },
+};
+
static void __init rb711gr100_init_partitions(const struct rb_info *info)
{
rb711gr100_spi_partitions[0].size = info->hard_cfg_offs;
@@ -293,10 +308,14 @@ static void __init rb711gr100_setup(void)
ARRAY_SIZE(rb711gr100_spi_info));
ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
+ AR934X_ETH_CFG_RXD_DELAY |
AR934X_ETH_CFG_SW_ONLY_MODE);
ath79_register_mdio(0, 0x0);
+ mdiobus_register_board_info(rb91x_mdio0_info,
+ ARRAY_SIZE(rb91x_mdio0_info));
+
ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
ath79_eth0_data.phy_mask = BIT(0);