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[] = {
, D- `) D( A$ s4 |/ Z( u, v/ j        [0] = {
5 q/ d" \- k) Y1 l* ?$ n& p                .start = DA8XX_AEMIF_CS5_BASE,
                .end   = DA8XX_AEMIF_CS5_BASE + SZ_32K - 1,
                .flags = IORESOURCE_MEM,
        },
6 t4 n6 V* K( h5 R: s; z        [1] = {
: i' ]* F( j/ ~. U; N                .start = -1,
                .end   = -1,
                .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
        },

};

static struct platform_device ax88796b_device = {
        .name = "ax88796b",
+ S8 D" z. k- I: K0 c) w        .dev = {
4 O8 A% C5 p  C
& J0 A! _7 @! Z0 N* ~/ u3 I3 T        },
* T' S3 Q% y! F3 Z. J/ R        .num_resources = ARRAY_SIZE(ax88796b_resources),
: z) u) R# @# Y$ E        .resource = ax88796b_resources,
};
3 A# N9 W& U5 i' _1 s* L( \1 E/ J
7 g2 X2 M8 Z( c% J1 m; \9 X) Gstatic inline void da850_evm_setup_ax88796b(void)
{
6 c$ L6 l- K- P8 i+ N0 M; ^        void __iomem *aemif_addr;
        int ret = 0;
       
4 T" T6 H2 t! T) |' p        ret = davinci_cfg_reg_list(da850_evm_ax88796b_pins);
       
. N' ]3 S3 |! F( n2 w        if(ret)
2 v* d+ v/ F% U9 c. a& e                pr_warning("da850_evm_init: ax88796b mux setup failde:"
                        "%d\n", ret);
  ?" P; ?( L8 x2 x% V        aemif_addr = ioremap(DA8XX_AEMIF_CTL_BASE, SZ_32K);
       
        writel(readl(aemif_addr + DA8XX_AEMIF_CE5CFG_OFFSET) |
                DA8XX_AEMIF_ASIZE_16BIT,
                aemif_addr + DA8XX_AEMIF_CE5CFG_OFFSET);
        iounmap(aemif_addr);
& e3 o; Z" _4 w: H8 K        ax88796b_resources[1].start = gpio_to_irq(DA850_AX88796B_IRQ);
        ax88796b_resources[1].end   = ax88796b_resources[1].start;
       
        platform_device_register(&ax88796b_device);
       
' E" ?8 c0 V0 y' q2 {" H4 t. n7 o' I}

和相关的引脚配置
编译通过，
在板子内核启动过程中：
INIT: version 2.88 booting
Starting udev
Starting Bootlog daemon: bootlogd.
# ~/ e8 w1 s: s0 a% lALSA: Restoring mixer settings...
/ a& @3 _: e8 x/ [" r7 I/usr/sbin/alsactl: load_state:1686: No soundcards found...
Configuring network interfaces... [   12.665617] davinci_mdio davinci_mdio.0: resetting idled controller
0 h9 \( ]' Y. }$ w8 f[   12.672854] net eth0: attached PHY driver [SMSC LAN8710/LAN8720] (mii_bus:phy_addr=davinci_mdio-0:00, id=7c0f1)
- [: v) q1 E0 A& Vudhcpc (v1.20.2) started
Sending discover...
Sending discover...
( E& O! z8 c0 P' j0 nSending discover...
No lease, failing
6 D) |" @! ]; [5 i2 Xdone.
% K0 J! D: \! E, NWed Nov  6 04:33:00 UTC 2013
3 o0 T! S! [# A$ I. H, z  c& M3 UINIT: Entering runlevel: 5
Starting system message bus: dbus.
0 v% n8 v, C1 mStarting Dropbear SSH server: [   22.869096] ipv6: disagrees about version of symbol inet_recvmsg
% K6 _/ v' j6 ~# j, H[   22.875341] ipv6: Unknown symbol inet_recvmsg (err -22)
2 q/ |4 O6 s: z. _4 I1 _6 N[   22.880894] ipv6: disagrees about version of symbol skb_free_datagram
[   22.887493] ipv6: Unknown symbol skb_free_datagram (err -22)
$ |: k# H+ A+ Q7 K( N( d+ j4 J[   22.893560] ipv6: disagrees about version of symbol __skb_checksum_complete
[   22.900598] ipv6: Unknown symbol __skb_checksum_complete (err -22)
[   22.907048] ipv6: disagrees about version of symbol register_sysctl_paths

[   22.913984] ipv6: Unknown symbol register_sysctl_paths (err -22)
# \* e, r& L5 o4 o, ~% s[   22.920203] ipv6: disagrees about version of symbol xfrm_inner_extract_output
[   22.927486] ipv6: Unknown symbol xfrm_inner_extract_output (err -22)
( I5 t# r5 G( c$ x5 V( A[   22.934104] ipv6: disagrees about version of symbol skb_free_datagram_locked
* P' v. p" V1 V- u$ q& G. Y/ B[   22.941222] ipv6: Unknown symbol skb_free_datagram_locked (err -22)
# J9 t# r; F2 S8 X3 q# k1 E% o[   22.947739] ipv6: disagrees about version of symbol sock_i_uid
2 ?2 a" y; e  j) h
就会出现这个问题，请问如何解决

3 d1 S# P1 q0 m" O

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

* N) G! K9 }. Y, B9 j) R  j
1 J7 @! f* f" P8 S5 v& c( j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。
4 ?: g" T& ~0 ~
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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？
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