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| author | Wolfgang Denk <wd@denx.de> | 2009-07-23 19:20:26 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2009-07-23 19:20:26 +0200 |
| commit | 4fb799aeafa71c4e6caacd3acdc4a4547cfbd5d4 (patch) | |
| tree | 6c49be563c2bcf3d24af9279493a054b613999ff /drivers/net/phy/miiphybb.c | |
| parent | b201171f2b4d509f3ad510b214bee70ff902e3d6 (diff) | |
| parent | 97cfe86163505ea18e7ff7b71e78df5bb03dad57 (diff) | |
| download | u-boot-imx-4fb799aeafa71c4e6caacd3acdc4a4547cfbd5d4.zip u-boot-imx-4fb799aeafa71c4e6caacd3acdc4a4547cfbd5d4.tar.gz u-boot-imx-4fb799aeafa71c4e6caacd3acdc4a4547cfbd5d4.tar.bz2 | |
Merge branch 'master' of git://git.denx.de/u-boot-net
Diffstat (limited to 'drivers/net/phy/miiphybb.c')
| -rw-r--r-- | drivers/net/phy/miiphybb.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/phy/miiphybb.c b/drivers/net/phy/miiphybb.c index e3c163a..b77c917 100644 --- a/drivers/net/phy/miiphybb.c +++ b/drivers/net/phy/miiphybb.c @@ -127,6 +127,11 @@ int bb_miiphy_read (char *devname, unsigned char addr, volatile ioport_t *iop = ioport_addr ((immap_t *) CONFIG_SYS_IMMR, MDIO_PORT); #endif + if (value == NULL) { + puts("NULL value pointer\n"); + return (-1); + } + miiphy_pre (1, addr, reg); /* tri-state our MDIO I/O pin so we can read */ @@ -145,6 +150,8 @@ int bb_miiphy_read (char *devname, unsigned char addr, MDC (1); MIIDELAY; } + /* There is no PHY, set value to 0xFFFF and return */ + *value = 0xFFFF; return (-1); } |