ar71xx: my net n750: simplify LNA GPIO setup

[openwrt.git] / target / linux / ar71xx / files / arch / mips / ath79 / dev-eth.c

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c b/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c
index 8b54d0c..21feeb9 100644 (file)
--- a/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c
@@ -20,6 +20,7 @@
 #include <linux/platform_device.h>
 #include <linux/serial_8250.h>
 #include <linux/clk.h>
+#include <linux/sizes.h>
 
 #include <asm/mach-ath79/ath79.h>
 #include <asm/mach-ath79/ar71xx_regs.h>
@@ -253,13 +254,8 @@ void __init ath79_register_mdio(unsigned int id, u32 phy_mask)
                mdio_data->is_ar934x = 1;
                break;
 
-       case ATH79_SOC_QCA9558:
-               if (id == 1)
-                       mdio_data->builtin_switch = 1;
-               mdio_data->is_ar934x = 1;
-               break;
-
        case ATH79_SOC_QCA9556:
+       case ATH79_SOC_QCA9558:
                mdio_data->is_ar934x = 1;
                break;
 
@@ -958,6 +954,9 @@ void __init ath79_register_eth(unsigned int id)
                pdata->has_gbit = 1;
                pdata->is_ar724x = 1;
 
+               pdata->max_frame_len = SZ_16K - 1;
+               pdata->desc_pktlen_mask = SZ_16K - 1;
+
                if (!pdata->fifo_cfg1)
                        pdata->fifo_cfg1 = 0x0010ffff;
                if (!pdata->fifo_cfg2)
@@ -982,6 +981,17 @@ void __init ath79_register_eth(unsigned int id)
                pdata->has_gbit = 1;
                pdata->is_ar724x = 1;
 
+               /*
+                * Limit the maximum frame length to 4095 bytes.
+                * Although the documentation says that the hardware
+                * limit is 16383 bytes but that does not work in
+                * practice. It seems that the hardware only updates
+                * the lowest 12 bits of the packet length field
+                * in the RX descriptor.
+                */
+               pdata->max_frame_len = SZ_4K - 1;
+               pdata->desc_pktlen_mask = SZ_16K - 1;
+
                if (!pdata->fifo_cfg1)
                        pdata->fifo_cfg1 = 0x0010ffff;
                if (!pdata->fifo_cfg2)