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[] = {
        [0] = {
                .start = DA8XX_AEMIF_CS5_BASE,
% p+ ?  `$ }+ C- S4 r                .end   = DA8XX_AEMIF_CS5_BASE + SZ_32K - 1,
. h" g! _0 Z9 p  ?( z+ l9 _                .flags = IORESOURCE_MEM,
" T/ w1 v0 U/ u' j$ C7 y" z        },
        [1] = {
* J  F$ A3 ]2 G( `                .start = -1,
                .end   = -1,
                .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
! X; f4 v) x# ]9 }# w        },
. @6 L* ~: M* m0 o, w1 a& e$ T
9 Z2 ]5 |9 O# W# f& }5 Z};

2 W0 U& T; r* f- d# z( c( @static struct platform_device ax88796b_device = {
* C3 V2 f4 l3 z6 u# y1 B        .name = "ax88796b",
( q4 K: z  Z! j        .dev = {

        },
3 `6 @; M8 S" {- o6 x# [        .num_resources = ARRAY_SIZE(ax88796b_resources),
        .resource = ax88796b_resources,
% S5 L4 J4 G& Q# x};

static inline void da850_evm_setup_ax88796b(void)
{
% K- Q, I6 |9 q4 C; }        void __iomem *aemif_addr;
        int ret = 0;
, s! V: Q& |/ [& i       
        ret = davinci_cfg_reg_list(da850_evm_ax88796b_pins);
       
8 M2 O: H" Z: V        if(ret)
9 ^! b5 n( ]5 m; z                pr_warning("da850_evm_init: ax88796b mux setup failde:"
                        "%d\n", ret);
        aemif_addr = ioremap(DA8XX_AEMIF_CTL_BASE, SZ_32K);
' J+ ^" Z& P& _! M" X2 A/ c! \       
        writel(readl(aemif_addr + DA8XX_AEMIF_CE5CFG_OFFSET) |
- R  B6 T$ r0 @& q$ _8 S                DA8XX_AEMIF_ASIZE_16BIT,
                aemif_addr + DA8XX_AEMIF_CE5CFG_OFFSET);
' m0 y' E. u2 I' s1 |! c- u3 o        iounmap(aemif_addr);
" q4 z3 G" m, D* N        ax88796b_resources[1].start = gpio_to_irq(DA850_AX88796B_IRQ);
! W, a" L) z& ]' U8 b        ax88796b_resources[1].end   = ax88796b_resources[1].start;
       
( O+ ^' G) x- p8 p        platform_device_register(&ax88796b_device);
3 N+ z, ~3 C! s. v' i- F) w: f$ x9 e       
}

8 w$ F! I+ r# ?0 q& j7 W4 ^: }1 i% X1 x' O和相关的引脚配置
+ p& `/ P2 R: U0 z  l编译通过，
1 I5 L* q0 A6 ^: `6 n在板子内核启动过程中：
INIT: version 2.88 booting
Starting udev
Starting Bootlog daemon: bootlogd.
: z, e% T/ _, o8 q+ @ALSA: Restoring mixer settings...
) F) x: m; N3 T5 P: c/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)
$ K, v: }0 G! n$ n' U8 j! o2 Vudhcpc (v1.20.2) started
* Z+ D- v+ n, S; e+ L* o; P" s4 HSending discover...
Sending discover...
Sending discover...
2 v6 M, X' \: ^* l/ u/ WNo lease, failing
* q( d' {4 x: X) r  ]6 n. Idone.
Wed Nov  6 04:33:00 UTC 2013
4 J9 Q) x' f4 D: G# h$ p; LINIT: Entering runlevel: 5
Starting system message bus: dbus.
Starting Dropbear SSH server: [   22.869096] ipv6: disagrees about version of symbol inet_recvmsg
3 [* u. @+ J; z! ?+ r[   22.875341] ipv6: Unknown symbol inet_recvmsg (err -22)
# O" K# ?2 }! W[   22.880894] ipv6: disagrees about version of symbol skb_free_datagram
) V: |: k+ B( q0 u$ p[   22.887493] ipv6: Unknown symbol skb_free_datagram (err -22)
[   22.893560] ipv6: disagrees about version of symbol __skb_checksum_complete
; {4 f9 c! @0 k[   22.900598] ipv6: Unknown symbol __skb_checksum_complete (err -22)
2 S; R7 o5 J9 d) l: O[   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
- f( _6 w/ I6 v" l3 v4 a, \[   22.927486] ipv6: Unknown symbol xfrm_inner_extract_output (err -22)
* \- ?2 W8 v/ E3 B1 C* n[   22.934104] ipv6: disagrees about version of symbol skb_free_datagram_locked
+ G/ F9 _% h# p! A' h' ~3 {: N[   22.941222] ipv6: Unknown symbol skb_free_datagram_locked (err -22)
- J# E2 D+ _+ X! F, s! H[   22.947739] ipv6: disagrees about version of symbol sock_i_uid
3 |) `  i2 @+ }9 ?
/ ?" B2 c8 Z+ c就会出现这个问题，请问如何解决
, ]3 p" @- R' g  g- Z1 Y+ p
2 Y  A5 X& V* X. h5 N& v

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。
+ A( n+ S2 W* f4 M9 z5 B, @

zhaohui293

0 J; `8 a* C$ F! u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。
% @7 n4 b/ _. B0 S) t) \0 }5 }

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。
! f* {6 c$ Q" M6 K' \

zhaohui293

我应该如何做？