Register definitions for the STM32F107 Ethernet.

Thanks to Gareth McMullin <gareth@blacksphere.co.nz>.

lib/ethernet.c

@@ -0,0 +1,53 @@
+/*
+ * This file is part of the libopenstm32 project.
+ *
+ * Copyright (C) 2010 Gareth McMullin <gareth@blacksphere.co.nz>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopenstm32/ethernet.h>
+
+void eth_smi_write(u8 phy, u8 reg, u16 data)
+{
+	/* Set PHY and register addresses for write access. */
+	*ETH_MACMIIAR &= ~(ETH_MACMIIAR_MR | ETH_MACMIIAR_PA);
+	*ETH_MACMIIAR |= (phy << 11) | (reg << 6) | ETH_MACMIIAR_MW;
+
+	/* Set register value. */
+	*ETH_MACMIIDR = data;
+
+	/* Begin transaction. */
+	*ETH_MACMIIAR |= ETH_MACMIIAR_MB;
+
+	/* Wait for not busy. */
+	while (*ETH_MACMIIAR & ETH_MACMIIAR_MB);
+}
+
+u16 eth_smi_read(u8 phy, u8 reg)
+{
+	/* Set PHY and register addresses for write access. */
+	*ETH_MACMIIAR &= ~(ETH_MACMIIAR_MR | ETH_MACMIIAR_PA | 
+			   ETH_MACMIAR_MW);
+	*ETH_MACMIIAR |= (phy << 11) | (reg << 6);
+
+	/* Begin transaction. */
+	*ETH_MACMIIAR |= ETH_MACMIIAR_MB;
+
+	/* Wait for not busy. */
+	while (*ETH_MACMIIAR & ETH_MACMIIAR_MB);
+
+	/* Set register value. */
+	return (u16)(*ETH_MACMIIDR);
+}