101 lines
3.6 KiB
Diff
101 lines
3.6 KiB
Diff
From 7645a459feb02f7aae4c3a5724b7800495d1b659 Mon Sep 17 00:00:00 2001
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From: Bobby Powers <bobbypowers@gmail.com>
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Date: Wed, 28 Oct 2009 22:41:31 -0400
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Subject: [PATCH] [ARM] smsc911x: Verdex Pro support
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Basically Joseph Kortje's patch, cleaned up to apply to Linus's
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tree. Some of the smsc911x.c had been applied already
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Signed-off-by: Bobby Powers <bobbypowers@gmail.com>
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---
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drivers/net/smsc911x.c | 50 +++++++++++++++++++++++++++++++++++++--------
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drivers/net/smsc911x.h | 2 +-
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include/linux/smsc911x.h | 11 ++++++++++
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3 files changed, 53 insertions(+), 10 deletions(-)
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--- a/drivers/net/ethernet/smsc/smsc911x.c
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+++ b/drivers/net/ethernet/smsc/smsc911x.c
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@@ -1485,7 +1485,7 @@ static int smsc911x_open(struct net_devi
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SMSC_WARN(pdata, ifup,
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"Timed out waiting for EEPROM busy bit to clear");
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- smsc911x_reg_write(pdata, GPIO_CFG, 0x70070000);
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+ smsc911x_reg_write(pdata, GPIO_CFG, GPIO_CFG_LED1_EN_ | GPIO_CFG_LED2_EN_ | (1 << 20));
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/* The soft reset above cleared the device's MAC address,
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* restore it from local copy (set in probe) */
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@@ -1497,8 +1497,8 @@ static int smsc911x_open(struct net_devi
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smsc911x_reg_write(pdata, INT_EN, 0);
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smsc911x_reg_write(pdata, INT_STS, 0xFFFFFFFF);
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- /* Set interrupt deassertion to 100uS */
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- intcfg = ((10 << 24) | INT_CFG_IRQ_EN_);
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+ /* Set interrupt deassertion to 22*10uS */
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+ intcfg = ((22 << 24) | INT_CFG_IRQ_EN_);
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if (pdata->config.irq_polarity) {
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SMSC_TRACE(pdata, ifup, "irq polarity: active high");
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@@ -1524,7 +1524,7 @@ static int smsc911x_open(struct net_devi
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temp |= INT_EN_SW_INT_EN_;
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smsc911x_reg_write(pdata, INT_EN, temp);
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- timeout = 1000;
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+ timeout = 2000;
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while (timeout--) {
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if (pdata->software_irq_signal)
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break;
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@@ -2332,6 +2332,38 @@ static inline int smsc911x_probe_config_
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}
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#endif /* CONFIG_OF */
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+static inline unsigned int is_gumstix_oui(u8 *addr)
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+{
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+ return (addr[0] == 0x00 && addr[1] == 0x15 && addr[2] == 0xC9);
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+}
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+
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+/**
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+ * gen_serial_ether_addr - Generate software assigned Ethernet address
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+ * based on the system_serial number
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+ * @addr: Pointer to a six-byte array containing the Ethernet address
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+ *
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+ * Generate an Ethernet address (MAC) that is not multicast
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+ * and has the local assigned bit set, keyed on the system_serial
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+ */
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+static inline void gen_serial_ether_addr(u8 *addr)
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+{
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+ static u8 ether_serial_digit = 0;
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+ addr [0] = system_serial_high >> 8;
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+ addr [1] = system_serial_high;
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+ addr [2] = system_serial_low >> 24;
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+ addr [3] = system_serial_low >> 16;
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+ addr [4] = system_serial_low >> 8;
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+ addr [5] = (system_serial_low & 0xc0) | /* top bits are from system serial */
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+ (1 << 4) | /* 2 bits identify interface type 1=ether, 2=usb, 3&4 undef */
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+ ((ether_serial_digit++) & 0x0f); /* 15 possible interfaces of each type */
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+
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+ if(!is_gumstix_oui(addr))
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+ {
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+ addr [0] &= 0xfe; /* clear multicast bit */
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+ addr [0] |= 0x02; /* set local assignment bit (IEEE802) */
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+ }
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+}
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+
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static int __devinit smsc911x_drv_probe(struct platform_device *pdev)
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{
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struct device_node *np = pdev->dev.of_node;
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@@ -2481,11 +2513,11 @@ static int __devinit smsc911x_drv_probe(
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SMSC_TRACE(pdata, probe,
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"Mac Address is read from LAN911x EEPROM");
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} else {
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- /* eeprom values are invalid, generate random MAC */
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- random_ether_addr(dev->dev_addr);
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+ /* eeprom values are invalid, generate MAC from serial number */
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+ gen_serial_ether_addr(dev->dev_addr);
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smsc911x_set_hw_mac_address(pdata, dev->dev_addr);
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SMSC_TRACE(pdata, probe,
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- "MAC Address is set to random_ether_addr");
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+ "MAC Address is derived from system serial number");
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}
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}
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