在openwrt下对华为WA633无线AP的千兆网卡驱动进行支持

来源：互联网发布：windows 10 mobile安卓编辑：程序博客网时间：2024/05/22 06:14

1.下面是这款AP的全裸图，AP的无线网卡采用了AR9223，PHY采用了博通的BCM5461，主控CPU位octeon+ 500，射频功放采用的是RF5602方案。由于这款CPU并不常见，我至今未在网上找到它的datasheet，导致我们在玩这款AP的过程中遇到了很多困难。

2.Openwrt源码采用的最新的，B...b,内核是Linux-3.10.49

3.在内核里我们可以看到有支持BCM5461的驱动，但是我们选上了之后并不能直接用，因为这块板子上的PHY与CPU间通过MIDO和RGMI两种总线方式(可能描述有误，记不清了)进行数据交互。但是主控芯片上有多个同意的接口供外设使用，但是这块板子上只用了一个，我们必须去确定用的是那个口，然后在内核加载过程中做相应处理。

4.修改内核源码，创建一个新的patch,将所有的改动保存在patch中。

Index: linux-3.10.49/arch/mips/cavium-octeon/executive/cvmx-helper-board.c===================================================================--- linux-3.10.49.orig/arch/mips/cavium-octeon/executive/cvmx-helper-board.c2015-11-18 01:28:11.483050038 +0800+++ linux-3.10.49/arch/mips/cavium-octeon/executive/cvmx-helper-board.c2015-11-18 01:28:11.559050042 +0800@@ -93,13 +93,8 @@ case CVMX_BOARD_TYPE_CN3010_EVB_HS5: case CVMX_BOARD_TYPE_CN3005_EVB_HS5: case CVMX_BOARD_TYPE_CN3020_EVB_HS5:-/*- * Port 0 is WAN connected to a PHY, Port 1 is GMII- * connected to a switch- */+/* Port 0 is WAN connected to a PHY:BCM5461(For WA633) */ if (ipd_port == 0)-return 4;-else if (ipd_port == 1) return 9; else return -1;@@ -244,11 +239,8 @@ case CVMX_BOARD_TYPE_CN3005_EVB_HS5: case CVMX_BOARD_TYPE_CN3020_EVB_HS5: /* Port 1 on these boards is always Gigabit */-if (ipd_port == 1) {-result.s.link_up = 1;-result.s.full_duplex = 1;-result.s.speed = 1000;-return result;+if (ipd_port == 0) {+is_broadcom_phy = 1; } /* Fall through to the generic code below */ break;Index: linux-3.10.49/arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c===================================================================--- linux-3.10.49.orig/arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c2014-07-18 06:58:15.000000000 +0800+++ linux-3.10.49/arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c2015-11-18 01:28:11.559050042 +0800@@ -72,7 +72,7 @@  * On these chips "type" says we're in  * GMII/MII mode. This limits us to 2 ports  */-num_ports = 2;+num_ports = 1; } else { cvmx_dprintf("ERROR: Unsupported Octeon model in %s\n",      __func__);@@ -84,7 +84,7 @@ } else if (OCTEON_IS_MODEL(OCTEON_CN31XX)    || OCTEON_IS_MODEL(OCTEON_CN30XX)    || OCTEON_IS_MODEL(OCTEON_CN50XX)) {-num_ports = 3;+num_ports = 1; } else { cvmx_dprintf("ERROR: Unsupported Octeon model in %s\n",      __func__);Index: linux-3.10.49/arch/mips/pci/pci-octeon.c===================================================================--- linux-3.10.49.orig/arch/mips/pci/pci-octeon.c2014-07-18 06:58:15.000000000 +0800+++ linux-3.10.49/arch/mips/pci/pci-octeon.c2015-11-20 11:24:27.655865439 +0800@@ -211,7 +211,7 @@ case CVMX_BOARD_TYPE_EBH3100: case CVMX_BOARD_TYPE_CN3010_EVB_HS5: case CVMX_BOARD_TYPE_CN3005_EVB_HS5:-return "AAABAAAAAAAAAAAAAAAAAAAAAAAAAAAA";+return "AAAAAAAAAAAAAABAAAAAAAAAAAAAAABA"; case CVMX_BOARD_TYPE_BBGW_REF: return "AABCD"; case CVMX_BOARD_TYPE_THUNDER:

5.需要改的几个地方，改天贴图，还有内核里必选的几个配置项。

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