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authorGabor Juhos <juhosg@openwrt.org>2014-04-13 20:41:52 +0000
committerGabor Juhos <juhosg@openwrt.org>2014-04-13 20:41:52 +0000
commit1374e5a721f51ef6eb9f6031adade7b923aecfdf (patch)
tree10efead5382503adbff0bb066511d23212af3c2d /target/linux/ar71xx/files/arch
parent46a8af4c4730dd96dc296bf07474ccb319653faa (diff)
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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> SVN-Revision: 40509
Diffstat (limited to 'target/linux/ar71xx/files/arch')
-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);