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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>
This commit is contained in:
Greg Ungerer 2009-08-12 16:14:43 +10:00
parent d89395babb
commit 14c16db390
1 changed files with 15 additions and 0 deletions
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15
arch/m68knommu/platform/523x/config.c
View File

@ -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;
}