关于ax88796b的板级驱动

zhaohui293

我在board-da850-evm.c文件增加ax88796b的板级驱动:static struct resource ax88796b_resources[] = {
! V  K' A* \; y1 M        [0] = {
3 p) p5 e4 g7 N                .start = DA8XX_AEMIF_CS5_BASE,
                .end   = DA8XX_AEMIF_CS5_BASE + SZ_32K - 1,
                .flags = IORESOURCE_MEM,
6 ^0 G6 ]5 Z; ~  {, D" i6 J3 Q        },
        [1] = {
8 t2 I( {8 F$ v4 e; t                .start = -1,
; `* h5 W2 U4 W: @7 v: S" X                .end   = -1,
; i. J8 L1 ?4 `3 ?( J                .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
        },
: W: h7 B1 m$ z* t
};
' @/ V; K7 ^' F
8 @* {* m4 |# g, j& h, k% S1 x* pstatic struct platform_device ax88796b_device = {
! B- Y0 z1 W: U0 O! c* k, ?0 r        .name = "ax88796b",
0 ~. S" @5 f% {, D0 T8 q# t        .dev = {
+ L, ]3 o1 b0 z6 J
        },
        .num_resources = ARRAY_SIZE(ax88796b_resources),
, R% L! b8 Y3 U/ z6 m        .resource = ax88796b_resources,
};

1 \* o" G$ Q; U* kstatic inline void da850_evm_setup_ax88796b(void)
6 I, `. N; g/ E* Y/ m. T; D{
        void __iomem *aemif_addr;
% ?% {( o. {  w- `6 p        int ret = 0;
       
        ret = davinci_cfg_reg_list(da850_evm_ax88796b_pins);
       
        if(ret)
7 t7 Z" O, y* i8 j                pr_warning("da850_evm_init: ax88796b mux setup failde:"
2 V0 ~* t+ ~) z% a                        "%d\n", ret);
* l! T8 J  I. q/ {  D: m        aemif_addr = ioremap(DA8XX_AEMIF_CTL_BASE, SZ_32K);
       
        writel(readl(aemif_addr + DA8XX_AEMIF_CE5CFG_OFFSET) |
                DA8XX_AEMIF_ASIZE_16BIT,
9 v! X: J1 f' H& h7 h9 y                aemif_addr + DA8XX_AEMIF_CE5CFG_OFFSET);
        iounmap(aemif_addr);
        ax88796b_resources[1].start = gpio_to_irq(DA850_AX88796B_IRQ);
        ax88796b_resources[1].end   = ax88796b_resources[1].start;
       
1 \- A" W9 V3 F0 C2 X8 ?$ I        platform_device_register(&ax88796b_device);
. c- a( }% I9 M- J3 R% P       
& s* S% w: n% Z; F}

4 s3 N3 A7 G( X" ~& F1 u和相关的引脚配置
0 m; Q7 n2 h) \$ ^1 ^编译通过，
在板子内核启动过程中：
INIT: version 2.88 booting
Starting udev
1 r" \7 ^! c' J/ D, E1 T$ L4 W4 s6 HStarting Bootlog daemon: bootlogd.
! e- g" `1 Q" o! T( C5 o  AALSA: Restoring mixer settings...
4 Y. }8 f0 a: D# Y( X2 `/usr/sbin/alsactl: load_state:1686: No soundcards found...
Configuring network interfaces... [   12.665617] davinci_mdio davinci_mdio.0: resetting idled controller
1 m1 a8 m2 H9 h$ Q& n& I[   12.672854] net eth0: attached PHY driver [SMSC LAN8710/LAN8720] (mii_bus:phy_addr=davinci_mdio-0:00, id=7c0f1)
0 f' [. ?1 f% W0 T% \) Y; zudhcpc (v1.20.2) started
Sending discover...
' R( O/ h* S# l. G# A  wSending discover...
3 S3 I9 t7 G% B1 P6 U9 R' o, }( PSending discover...
/ b, T4 R# P! z3 @1 bNo lease, failing
: G) g5 s# e5 z$ |done.
Wed Nov  6 04:33:00 UTC 2013
INIT: Entering runlevel: 5
Starting system message bus: dbus.
Starting Dropbear SSH server: [   22.869096] ipv6: disagrees about version of symbol inet_recvmsg
9 Z1 \# P1 m  z8 a, u1 s- E: a[   22.875341] ipv6: Unknown symbol inet_recvmsg (err -22)
! f$ B+ }% v0 I9 }8 S; M$ }; g[   22.880894] ipv6: disagrees about version of symbol skb_free_datagram
[   22.887493] ipv6: Unknown symbol skb_free_datagram (err -22)
) a4 ]+ {/ \; [8 }: R[   22.893560] ipv6: disagrees about version of symbol __skb_checksum_complete
# f# p: r, ^. ]: m7 W8 B$ y[   22.900598] ipv6: Unknown symbol __skb_checksum_complete (err -22)
! d  }9 Q% d0 J3 u0 q[   22.907048] ipv6: disagrees about version of symbol register_sysctl_paths

[   22.913984] ipv6: Unknown symbol register_sysctl_paths (err -22)
[   22.920203] ipv6: disagrees about version of symbol xfrm_inner_extract_output
' e  T$ i8 `2 i9 {( I1 ^# V5 W, M[   22.927486] ipv6: Unknown symbol xfrm_inner_extract_output (err -22)
[   22.934104] ipv6: disagrees about version of symbol skb_free_datagram_locked
[   22.941222] ipv6: Unknown symbol skb_free_datagram_locked (err -22)
[   22.947739] ipv6: disagrees about version of symbol sock_i_uid
: Q1 v' u1 L" @/ n  o8 I4 r4 X/ ~
就会出现这个问题，请问如何解决

2 j% ~% s' d$ f9 c% w

teddy

请问您是出了什么问题了，这里的信息没看到时跟您的ax88796b相关的错误。
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zhaohui293

/ e, ]7 @2 S8 F3 F' j* c  B0 F我添加了ax88796b的板级驱动，就出现上面的情况，没有添加的时候编译内核不会出现ipv6的问题。
# [6 I( X4 {% J- @: N' c3 l

teddy

ipv6: Unknown symbol inet_recvmsg (err -22)* 这个可能是因为，你的内核配置，会把ipv6的编译配置给关闭了，导致ipv6部分代码没有编译进内核。
0 ]/ f# L9 U% H4 I* v0 R

zhaohui293

我应该如何做？