From a912733e9b86f787f8efe6c805662476be9c1e24 Mon Sep 17 00:00:00 2001
From: Wolfgang Denk <wd@pollux.(none)>
Date: Mon, 26 Sep 2005 00:39:59 +0200
Subject: [PATCH] Add support for MII in eepro100 driver. Patch by Gleb
Natapov, 21 Mar 2005
---
CHANGELOG | 3 +++
drivers/eepro100.c | 41 +++++++++++++++++++++++++++++++++++++++++
2 files changed, 44 insertions(+)
diff --git a/CHANGELOG b/CHANGELOG
index fc4e521ceb..63f9e5dd11 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,9 @@
Changes for U-Boot 1.1.4:
======================================================================
+* Add support for MII in eepro100 driver.
+ Patch by Gleb Natapov, 21 Mar 2005
+
* Fixes to the Lubbock (PXA 25x) support:
- Resolve the FIXME with respect to saving the u-boot environment.
- Make the default load address land in real memory.
diff --git a/drivers/eepro100.c b/drivers/eepro100.c
index 906159ee3c..9db7bd80c2 100644
--- a/drivers/eepro100.c
+++ b/drivers/eepro100.c
@@ -271,6 +271,47 @@ static inline void OUTL (struct eth_device *dev, int command, u_long addr)
*(volatile u32 *) ((addr + dev->iobase)) = cpu_to_le32 (command);
}
+#if defined (CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
+static inline int INL (struct eth_device *dev, u_long addr)
+{
+ return le32_to_cpu (*(volatile u32 *) (addr + dev->iobase));
+}
+
+int miiphy_read (unsigned char addr,
+ unsigned char reg,
+ unsigned short *value)
+{
+ int cmd = (2 << 26) | ((addr & 0x1f) << 21) | ((reg & 0x1f) << 16);
+
+ struct eth_device *dev = eth_get_dev ();
+
+ OUTL (dev, cmd, SCBCtrlMDI);
+
+ do {
+ cmd = INL (dev, SCBCtrlMDI);
+ } while (!(cmd & (1 << 28)));
+
+ *value = (unsigned short) (cmd & 0xffff);
+
+ return 0;
+}
+
+int miiphy_write (unsigned char addr,
+ unsigned char reg,
+ unsigned short value)
+{
+ int cmd = (1 << 26) | ((addr & 0x1f) << 21) | ((reg & 0x1f) << 16);
+
+ struct eth_device *dev = eth_get_dev ();
+
+ OUTL (dev, cmd | value, SCBCtrlMDI);
+
+ while (!(INL (dev, SCBCtrlMDI) & (1 << 28)));
+
+ return 0;
+}
+#endif /* (CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII) */
+
/* Wait for the chip get the command.
*/
static int wait_for_eepro100 (struct eth_device *dev)
--
2.39.5