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authorMichael Schmitz <schmitzmic@gmail.com>2013-04-06 13:26:40 +1300
committerGeert Uytterhoeven <geert@linux-m68k.org>2013-04-16 21:20:14 +0200
commit1d87a8f2911fe6c22416f4a5dc5e0362f5bb9ef4 (patch)
tree423d2f6c42df815c3832bedc2b04bc0df159c2e6 /arch/m68k/atari
parent736b24db32a806f79b43511e461321981bcfd5bf (diff)
downloadlinux-1d87a8f2911fe6c22416f4a5dc5e0362f5bb9ef4.tar.gz
m68k/atari: EtherNEC - add platform device support
Add platform device for the Atari ROM port ethernet adapter, EtherNEC.
This platform device will be used by the ne.c driver.

[Geert] Conditionalize platform device data structures

Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k/atari')
-rw-r--r--arch/m68k/atari/config.c54
1 files changed, 53 insertions, 1 deletions
diff --git a/arch/m68k/atari/config.c b/arch/m68k/atari/config.c
index 49d1c750acb0..83ff931ad97a 100644
--- a/arch/m68k/atari/config.c
+++ b/arch/m68k/atari/config.c
@@ -659,7 +659,7 @@ static void atari_get_hardware_list(struct seq_file *m)
 
 /*
  * MSch: initial platform device support for Atari,
- * required for EtherNAT driver
+ * required for EtherNAT/EtherNEC drivers
  */
 
 #ifdef CONFIG_ATARI_ETHERNAT
@@ -696,6 +696,43 @@ static struct platform_device *atari_ethernat_devices[] __initdata = {
 };
 #endif /* CONFIG_ATARI_ETHERNAT */
 
+#ifdef CONFIG_ATARI_ETHERNEC
+/*
+ * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset,
+ * handled by ne.c driver
+ */
+
+#define ATARI_ETHERNEC_PHYS_ADDR	0xfffa0000
+#define ATARI_ETHERNEC_BASE		0x300
+#define ATARI_ETHERNEC_IRQ		IRQ_MFP_TIMER1
+
+static struct resource rtl8019_resources[] = {
+	[0] = {
+		.name	= "rtl8019-regs",
+		.start	= ATARI_ETHERNEC_BASE,
+		.end	= ATARI_ETHERNEC_BASE + 0x20 - 1,
+		.flags	= IORESOURCE_IO,
+	},
+	[1] = {
+		.name	= "rtl8019-irq",
+		.start	= ATARI_ETHERNEC_IRQ,
+		.end	= ATARI_ETHERNEC_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device rtl8019_device = {
+	.name		= "ne",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(rtl8019_resources),
+	.resource	= rtl8019_resources,
+};
+
+static struct platform_device *atari_ethernec_devices[] __initdata = {
+	&rtl8019_device
+};
+#endif /* CONFIG_ATARI_ETHERNEC */
+
 int __init atari_platform_init(void)
 {
 	int rv = 0;
@@ -715,6 +752,21 @@ int __init atari_platform_init(void)
 	}
 #endif
 
+#ifdef CONFIG_ATARI_ETHERNEC
+	{
+		int error;
+		unsigned char *enec_virt;
+		enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf);
+		if (hwreg_present(enec_virt)) {
+			error = platform_add_devices(atari_ethernec_devices,
+						ARRAY_SIZE(atari_ethernec_devices));
+			if (error && !rv)
+				rv = error;
+		}
+		iounmap(enec_virt);
+	}
+#endif
+
 	return rv;
 }