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authorGreg Ungerer <gerg@uclinux.org>2009-08-12 02:14:43 -0400
committerGreg Ungerer <gerg@uclinux.org>2009-09-15 19:43:56 -0400
commit14c16db3906ba9453e9c786323f872e11fd0f48d (patch)
treeb534093122b665c423bab26d4caae0598c467164 /arch/m68knommu/platform/523x
parentd89395babbe811811e70c6ee3465e3b60c0cdc11 (diff)
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/m68knommu/platform/523x')
-rw-r--r--arch/m68knommu/platform/523x/config.c15
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 = {
82 82
83/***************************************************************************/ 83/***************************************************************************/
84 84
85static void __init m523x_fec_init(void)
86{
87 u16 par;
88 u8 v;
89
90 /* Set multi-function pins to ethernet use */
91 par = readw(MCF_IPSBAR + 0x100082);
92 writew(par | 0xf00, MCF_IPSBAR + 0x100082);
93 v = readb(MCF_IPSBAR + 0x100078);
94 writeb(v | 0xc0, MCF_IPSBAR + 0x100078);
95}
96
97/***************************************************************************/
98
85static void m523x_cpu_reset(void) 99static void m523x_cpu_reset(void)
86{ 100{
87 local_irq_disable(); 101 local_irq_disable();
@@ -99,6 +113,7 @@ void __init config_BSP(char *commandp, int size)
99 113
100static int __init init_BSP(void) 114static int __init init_BSP(void)
101{ 115{
116 m523x_fec_init();
102 platform_add_devices(m523x_devices, ARRAY_SIZE(m523x_devices)); 117 platform_add_devices(m523x_devices, ARRAY_SIZE(m523x_devices));
103 return 0; 118 return 0;
104} 119}