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net: rtl8139: Minor cleanup of rtl_reset()

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Rename the function to rtl8139_reset(), clean up the reset polling
and various line-over-80 problems. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Marek Vasut 2020-04-12 21:41:56 +02:00 committed by marex
parent 89f3facffb
commit c7a3e35d76
1 changed files with 32 additions and 25 deletions
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57
drivers/net/rtl8139.c
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@ -200,7 +200,7 @@ static unsigned char rx_ring[RX_BUF_LEN+16] __attribute__((aligned(4)));
static int rtl8139_probe(struct eth_device *dev, bd_t *bis);
static int rtl8139_read_eeprom(unsigned int location, unsigned int addr_len);
static void rtl_reset(struct eth_device *dev);
static void rtl8139_reset(struct eth_device *dev);
static int rtl_transmit(struct eth_device *dev, void *packet, int length);
static int rtl_poll(struct eth_device *dev);
static void rtl_disable(struct eth_device *dev);
@ -277,7 +277,7 @@ static int rtl8139_probe(struct eth_device *dev, bd_t *bis)
for (i = 0; i < 3; i++)
*ap++ = le16_to_cpu (rtl8139_read_eeprom(i + 7, addr_len));
rtl_reset(dev);
rtl8139_reset(dev);
if (inb(ioaddr + RTL_REG_MEDIASTATUS) & RTL_REG_MEDIASTATUS_MSRLINKFAIL) {
printf("Cable not connected or other link failure\n");
@ -370,8 +370,9 @@ static void rtl8139_set_rx_mode(struct eth_device *dev)
outl(0xffffffff, ioaddr + RTL_REG_MAR0 + 4);
}
static void rtl_reset(struct eth_device *dev)
static void rtl8139_reset(struct eth_device *dev)
{
u8 reg;
int i;
outb(RTL_REG_CHIPCMD_CMDRESET, ioaddr + RTL_REG_CHIPCMD);
@ -380,11 +381,12 @@ static void rtl_reset(struct eth_device *dev)
cur_tx = 0;
/* Give the chip 10ms to finish the reset. */
for (i=0; i<100; ++i){
if ((inb(ioaddr + RTL_REG_CHIPCMD) &
RTL_REG_CHIPCMD_CMDRESET) == 0)
for (i = 0; i < 100; i++) {
reg = inb(ioaddr + RTL_REG_CHIPCMD);
if (!(reg & RTL_REG_CHIPCMD_CMDRESET))
break;
udelay (100); /* wait 100us */
udelay(100);
}
@ -393,30 +395,35 @@ static void rtl_reset(struct eth_device *dev)
/* Must enable Tx/Rx before setting transfer thresholds! */
outb(RTL_REG_CHIPCMD_CMDRXENB | RTL_REG_CHIPCMD_CMDTXENB,
ioaddr + RTL_REG_CHIPCMD);
ioaddr + RTL_REG_CHIPCMD);
/* accept no frames yet! */
outl(rtl8139_rx_config, ioaddr + RTL_REG_RXCONFIG);
outl((TX_DMA_BURST<<8)|0x03000000, ioaddr + RTL_REG_TXCONFIG);
outl((TX_DMA_BURST << 8) | 0x03000000, ioaddr + RTL_REG_TXCONFIG);
/* The Linux driver changes RTL_REG_CONFIG1 here to use a different LED pattern
* for half duplex or full/autodetect duplex (for full/autodetect, the
* outputs are TX/RX, Link10/100, FULL, while for half duplex it uses
* TX/RX, Link100, Link10). This is messy, because it doesn't match
* the inscription on the mounting bracket. It should not be changed
* from the configuration EEPROM default, because the card manufacturer
* should have set that to match the card. */
/*
* The Linux driver changes RTL_REG_CONFIG1 here to use a different
* LED pattern for half duplex or full/autodetect duplex (for
* full/autodetect, the outputs are TX/RX, Link10/100, FULL, while
* for half duplex it uses TX/RX, Link100, Link10). This is messy,
* because it doesn't match the inscription on the mounting bracket.
* It should not be changed from the configuration EEPROM default,
* because the card manufacturer should have set that to match the
* card.
*/
debug_cond(DEBUG_RX, "rx ring address is %p\n", rx_ring);
debug_cond(DEBUG_RX,
"rx ring address is %lX\n",(unsigned long)rx_ring);
flush_cache((unsigned long)rx_ring, RX_BUF_LEN);
outl(phys_to_bus((int)rx_ring), ioaddr + RTL_REG_RXBUF);
/* If we add multicast support, the RTL_REG_MAR0 register would have to be
* initialized to 0xffffffffffffffff (two 32 bit accesses). Etherboot
* only needs broadcast (for ARP/RARP/BOOTP/DHCP) and unicast. */
/*
* If we add multicast support, the RTL_REG_MAR0 register would have
* to be initialized to 0xffffffffffffffff (two 32 bit accesses).
* Etherboot only needs broadcast (for ARP/RARP/BOOTP/DHCP) and
* unicast.
*/
outb(RTL_REG_CHIPCMD_CMDRXENB | RTL_REG_CHIPCMD_CMDTXENB,
ioaddr + RTL_REG_CHIPCMD);
ioaddr + RTL_REG_CHIPCMD);
outl(rtl8139_rx_config, ioaddr + RTL_REG_RXCONFIG);
@ -488,7 +495,7 @@ static int rtl_transmit(struct eth_device *dev, void *packet, int length)
"tx timeout/error (%d usecs), status %hX txstatus %lX\n",
10*i, status, txstatus);
rtl_reset(dev);
rtl8139_reset(dev);
return 0;
}
@ -527,7 +534,7 @@ static int rtl_poll(struct eth_device *dev)
RTL_STS_RXBADALIGN)) ||
(rx_size < ETH_ZLEN) || (rx_size > ETH_FRAME_LEN + 4)) {
printf("rx error %hX\n", rx_status);
rtl_reset(dev); /* this clears all interrupts still pending */
rtl8139_reset(dev); /* this clears all interrupts still pending */
return 0;
}