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[] = {
& n- e* c, m3 p" f' W. H" O        [0] = {
                .start = DA8XX_AEMIF_CS5_BASE,
1 _8 _# A) u; R4 G, N" f2 g                .end   = DA8XX_AEMIF_CS5_BASE + SZ_32K - 1,
( C5 u5 C9 @7 g3 l# ]                .flags = IORESOURCE_MEM,
# d9 E$ i& E( m. ]! Q        },
, z. b. E! A) A" E9 r( S% c- J        [1] = {
                .start = -1,
. k. ]: u, }1 j! N7 [                .end   = -1,
                .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
        },
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};
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& x; I) i, z( I; m. g4 Fstatic struct platform_device ax88796b_device = {
        .name = "ax88796b",
        .dev = {
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        },
        .num_resources = ARRAY_SIZE(ax88796b_resources),
4 U9 K" G/ w. e1 M1 M7 `        .resource = ax88796b_resources,
2 _2 T- v9 s# a( q};

static inline void da850_evm_setup_ax88796b(void)
{
  y$ x& G/ \# ]1 n* Q& R        void __iomem *aemif_addr;
        int ret = 0;
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        ret = davinci_cfg_reg_list(da850_evm_ax88796b_pins);
       
5 s) c0 z* f% {7 D4 E        if(ret)
. C2 @3 d& e4 x: g0 h" o; G                pr_warning("da850_evm_init: ax88796b mux setup failde:"
                        "%d\n", ret);
        aemif_addr = ioremap(DA8XX_AEMIF_CTL_BASE, SZ_32K);
       
% z, x. @7 I4 }  ^& T        writel(readl(aemif_addr + DA8XX_AEMIF_CE5CFG_OFFSET) |
: [5 S0 _1 o7 @                DA8XX_AEMIF_ASIZE_16BIT,
                aemif_addr + DA8XX_AEMIF_CE5CFG_OFFSET);
        iounmap(aemif_addr);
        ax88796b_resources[1].start = gpio_to_irq(DA850_AX88796B_IRQ);
' N5 {* W) |' Y  f        ax88796b_resources[1].end   = ax88796b_resources[1].start;
       
        platform_device_register(&ax88796b_device);
       
}

2 j7 N; `6 s/ g2 s2 f3 m9 k& E/ M6 L和相关的引脚配置
5 \( b9 x% \/ B/ z  _编译通过，
0 }$ i1 X' s5 M& u) v! E在板子内核启动过程中：
: ]' J  h3 R# L' R, n' zINIT: version 2.88 booting
9 F, d$ u1 e1 c" C4 J. S  bStarting udev
Starting Bootlog daemon: bootlogd.
ALSA: Restoring mixer settings...
5 V  K3 |) F9 F3 B/usr/sbin/alsactl: load_state:1686: No soundcards found...
' e" m+ }" |( QConfiguring network interfaces... [   12.665617] davinci_mdio davinci_mdio.0: resetting idled controller
[   12.672854] net eth0: attached PHY driver [SMSC LAN8710/LAN8720] (mii_bus:phy_addr=davinci_mdio-0:00, id=7c0f1)
6 U  J: E3 S) m1 r  G* a, e2 gudhcpc (v1.20.2) started
Sending discover...
8 x: D" b* d, S4 zSending discover...
$ s$ {0 D/ }8 `) `1 t" ^# XSending discover...
No lease, failing
done.
Wed Nov  6 04:33:00 UTC 2013
* \/ p) t3 {2 C2 fINIT: Entering runlevel: 5
Starting system message bus: dbus.
6 X1 ?: K8 M- u8 i' [% c6 FStarting Dropbear SSH server: [   22.869096] ipv6: disagrees about version of symbol inet_recvmsg
7 K" B3 \6 |- M[   22.875341] ipv6: Unknown symbol inet_recvmsg (err -22)
[   22.880894] ipv6: disagrees about version of symbol skb_free_datagram
1 G! b( d% G8 T$ Y3 f( s6 D[   22.887493] ipv6: Unknown symbol skb_free_datagram (err -22)
[   22.893560] ipv6: disagrees about version of symbol __skb_checksum_complete
[   22.900598] ipv6: Unknown symbol __skb_checksum_complete (err -22)
4 s+ i8 b$ O" G- b: Y[   22.907048] ipv6: disagrees about version of symbol register_sysctl_paths

2 a" x3 {# e! U( u2 z. F/ K2 S8 z[   22.913984] ipv6: Unknown symbol register_sysctl_paths (err -22)
[   22.920203] ipv6: disagrees about version of symbol xfrm_inner_extract_output
, D. F8 E. A# [! i) j1 w  r[   22.927486] ipv6: Unknown symbol xfrm_inner_extract_output (err -22)
  W$ z3 q6 W$ _  Z# Y: Z, K' ~[   22.934104] ipv6: disagrees about version of symbol skb_free_datagram_locked
' J' l( |4 A( ?4 q" }- U. @3 I[   22.941222] ipv6: Unknown symbol skb_free_datagram_locked (err -22)
3 S& l. n$ K1 n, ^4 o) T% I[   22.947739] ipv6: disagrees about version of symbol sock_i_uid
. V7 Q( B1 l& S$ }
就会出现这个问题，请问如何解决
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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。

zhaohui293

' ]2 s- Z+ H; s( z: H# q- ~
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。
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1 c' q! L5 w" \8 N

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。

zhaohui293

我应该如何做？
. f* p  J) B+ c# ?