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[] = {
/ e& ^# N& P, ]# H/ j, b        [0] = {
                .start = DA8XX_AEMIF_CS5_BASE,
) \6 |$ {8 w9 c. ]                .end   = DA8XX_AEMIF_CS5_BASE + SZ_32K - 1,
' L7 V- m2 B, E6 h4 y1 {$ s% z% S                .flags = IORESOURCE_MEM,
        },
: P. w! K8 C1 }$ M4 J+ T7 t3 f2 }        [1] = {
, T$ K0 z' W4 v0 a, e0 Q                .start = -1,
                .end   = -1,
                .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
( ]  r, R3 s$ G* z        },
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  g( T# W6 J: b" Y};

static struct platform_device ax88796b_device = {
' ^% K# x, h7 T3 L: N        .name = "ax88796b",
' H  R, S$ g* k# U7 t1 x        .dev = {
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* A: w" p  y. d& v2 U9 u8 @2 [        },
8 @  C8 y: u" w# J  Z* x% i/ C        .num_resources = ARRAY_SIZE(ax88796b_resources),
8 ]" j" E4 w! v9 Z        .resource = ax88796b_resources,
8 V# c5 Z/ R/ P3 V! e4 u: R7 ]};
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static inline void da850_evm_setup_ax88796b(void)
{
$ {$ k9 T+ L8 j; o        void __iomem *aemif_addr;
        int ret = 0;
       
        ret = davinci_cfg_reg_list(da850_evm_ax88796b_pins);
5 M% Y( d- {3 Y4 ?+ p9 ], P# Q       
        if(ret)
8 D4 ]# A. f8 K' `2 j" x( V2 `- X( ^                pr_warning("da850_evm_init: ax88796b mux setup failde:"
                        "%d\n", ret);
6 F% L6 z9 h/ Q5 w& g; a2 ^        aemif_addr = ioremap(DA8XX_AEMIF_CTL_BASE, SZ_32K);
       
        writel(readl(aemif_addr + DA8XX_AEMIF_CE5CFG_OFFSET) |
                DA8XX_AEMIF_ASIZE_16BIT,
- |$ M- c- j9 L  R& y                aemif_addr + DA8XX_AEMIF_CE5CFG_OFFSET);
7 h# N% z. h0 h* b2 V        iounmap(aemif_addr);
  p4 O% L5 c, r7 _0 ^. y        ax88796b_resources[1].start = gpio_to_irq(DA850_AX88796B_IRQ);
) d& j- \2 p) C* m" I3 e        ax88796b_resources[1].end   = ax88796b_resources[1].start;
2 |9 W! Q3 m6 _0 X       
5 M4 D$ J( f% H5 E  u7 a" N        platform_device_register(&ax88796b_device);
       
6 S: ]. p- }- s& ], V, C2 `}

0 C0 c% l' a, g# X和相关的引脚配置
% C$ k$ ]$ Y2 ]* O6 A, t8 f编译通过，
在板子内核启动过程中：
INIT: version 2.88 booting
Starting udev
* a! Y# {% ^3 ]Starting Bootlog daemon: bootlogd.
ALSA: Restoring mixer settings...
4 v/ Q, Z: j) y5 D2 \* {/usr/sbin/alsactl: load_state:1686: No soundcards found...
Configuring 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)
3 W3 x8 b; q2 q" S: q$ l4 e: Sudhcpc (v1.20.2) started
' H2 ]! y  \/ ?$ l" wSending discover...
Sending discover...
4 f4 w( u* O7 C( {/ o% WSending discover...
; E. f: V: K5 x, A. }) {No lease, failing
done.
Wed Nov  6 04:33:00 UTC 2013
INIT: Entering runlevel: 5
9 A- ^8 i" {: M- J, z( t) N- xStarting system message bus: dbus.
! `6 Y0 P! L* ~( X& CStarting Dropbear SSH server: [   22.869096] ipv6: disagrees about version of symbol inet_recvmsg
[   22.875341] ipv6: Unknown symbol inet_recvmsg (err -22)
[   22.880894] ipv6: disagrees about version of symbol skb_free_datagram
[   22.887493] ipv6: Unknown symbol skb_free_datagram (err -22)
  {8 t: N9 I# B[   22.893560] ipv6: disagrees about version of symbol __skb_checksum_complete
[   22.900598] ipv6: Unknown symbol __skb_checksum_complete (err -22)
" r+ F* {. ?# C2 s; s1 }1 Y[   22.907048] ipv6: disagrees about version of symbol register_sysctl_paths
) v% N  x8 y6 Z" O% q0 W: V
[   22.913984] ipv6: Unknown symbol register_sysctl_paths (err -22)
[   22.920203] ipv6: disagrees about version of symbol xfrm_inner_extract_output
* j' x( {( Q% a4 z, E" j[   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

7 H' f4 O7 a1 @2 H+ E2 O- Z就会出现这个问题，请问如何解决

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zhaohui293

我应该如何做？

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

1 c3 k, v* b4 x) I( ?
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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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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