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| author | Greg Ungerer <gerg@uclinux.org> | 2009-08-12 16:14:43 +1000 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2009-09-16 09:43:56 +1000 |
| commit | 14c16db3906ba9453e9c786323f872e11fd0f48d (patch) | |
| tree | b534093122b665c423bab26d4caae0598c467164 /arch | |
| parent | d89395babbe811811e70c6ee3465e3b60c0cdc11 (diff) | |
| download | linux-14c16db3906ba9453e9c786323f872e11fd0f48d.tar.gz linux-14c16db3906ba9453e9c786323f872e11fd0f48d.tar.bz2 linux-14c16db3906ba9453e9c786323f872e11fd0f48d.zip | |
m68knommu: set multi-function pins for ethernet when enabled
The ethernet pins on the 532x ColdFire CPU family are multi-function
pins. We need to enable them as ethernet pins when using the FEC
ethernet driver.
Bug report, and older patch, from timothee@manaud.net.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/m68knommu/platform/523x/config.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/m68knommu/platform/523x/config.c b/arch/m68knommu/platform/523x/config.c index 00f08d2e43b0..6ba84f2aa397 100644 --- a/arch/m68knommu/platform/523x/config.c +++ b/arch/m68knommu/platform/523x/config.c @@ -82,6 +82,20 @@ static struct platform_device *m523x_devices[] __initdata = { /***************************************************************************/ +static void __init m523x_fec_init(void) +{ + u16 par; + u8 v; + + /* Set multi-function pins to ethernet use */ + par = readw(MCF_IPSBAR + 0x100082); + writew(par | 0xf00, MCF_IPSBAR + 0x100082); + v = readb(MCF_IPSBAR + 0x100078); + writeb(v | 0xc0, MCF_IPSBAR + 0x100078); +} + +/***************************************************************************/ + static void m523x_cpu_reset(void) { local_irq_disable(); @@ -99,6 +113,7 @@ void __init config_BSP(char *commandp, int size) static int __init init_BSP(void) { + m523x_fec_init(); platform_add_devices(m523x_devices, ARRAY_SIZE(m523x_devices)); return 0; } |