[U-Boot-Users] [PATCH V2] Fix Ethernet init() return codes.
Ben Warren
biggerbadderben at gmail.com
Tue Jan 8 23:23:21 CET 2008
Change return values of init() functions in all Ethernet drivers to conform
to the following:
>=0: Success
<0: Failure
All drivers going forward should return 0 on success. Current drivers that
return 1 on success were left as-is to minimize changes.
Signed-off-by: Ben Warren <biggerbadderben at gmail.com>
---
This one includes QE UEC. Please let me know if any other drivers are missing!
cpu/ixp/npe/npe.c | 8 ++++----
cpu/mpc8xx/fec.c | 6 +++---
drivers/net/dc2114x.c | 4 ++--
drivers/net/eepro100.c | 4 ++--
drivers/net/macb.c | 4 ++--
drivers/net/pcnet.c | 4 ++--
drivers/net/rtl8139.c | 4 ++--
drivers/net/rtl8169.c | 5 +++--
drivers/net/tsec.c | 2 +-
drivers/net/tsi108_eth.c | 4 ++--
drivers/net/uli526x.c | 6 +++---
drivers/qe/uec.c | 6 +++---
net/eth.c | 2 +-
13 files changed, 30 insertions(+), 29 deletions(-)
diff --git a/cpu/ixp/npe/npe.c b/cpu/ixp/npe/npe.c
index 7e4af44..a33b956 100644
--- a/cpu/ixp/npe/npe.c
+++ b/cpu/ixp/npe/npe.c
@@ -408,25 +408,25 @@ static int npe_init(struct eth_device *dev, bd_t * bis)
if (ixEthAccPortRxCallbackRegister(p_npe->eth_id, npe_rx_callback,
(u32)p_npe) != IX_ETH_ACC_SUCCESS) {
printf("can't register RX callback!\n");
- return 0;
+ return -1;
}
if (ixEthAccPortTxDoneCallbackRegister(p_npe->eth_id, npe_tx_callback,
(u32)p_npe) != IX_ETH_ACC_SUCCESS) {
printf("can't register TX callback!\n");
- return 0;
+ return -1;
}
npe_set_mac_address(dev);
if (ixEthAccPortEnable(p_npe->eth_id) != IX_ETH_ACC_SUCCESS) {
printf("can't enable port!\n");
- return 0;
+ return -1;
}
p_npe->active = 1;
- return 1;
+ return 0;
}
#if 0 /* test-only: probably have to deal with it when booting linux (for a clean state) */
diff --git a/cpu/mpc8xx/fec.c b/cpu/mpc8xx/fec.c
index 08a3715..1fd4d4e 100644
--- a/cpu/mpc8xx/fec.c
+++ b/cpu/mpc8xx/fec.c
@@ -588,7 +588,7 @@ static int fec_init (struct eth_device *dev, bd_t * bd)
}
if (i == FEC_RESET_DELAY) {
printf ("FEC_RESET_DELAY timeout\n");
- return 0;
+ return -1;
}
/* We use strictly polling mode only
@@ -708,7 +708,7 @@ static int fec_init (struct eth_device *dev, bd_t * bd)
if (efis->actual_phy_addr == -1) {
printf ("Unable to discover phy!\n");
- return 0;
+ return -1;
}
#else
efis->actual_phy_addr = -1;
@@ -751,7 +751,7 @@ static int fec_init (struct eth_device *dev, bd_t * bd)
efis->initialized = 1;
- return 1;
+ return 0;
}
diff --git a/drivers/net/dc2114x.c b/drivers/net/dc2114x.c
index d5275dc..7238922 100644
--- a/drivers/net/dc2114x.c
+++ b/drivers/net/dc2114x.c
@@ -332,7 +332,7 @@ static int dc21x4x_init(struct eth_device* dev, bd_t* bis)
if ((INL(dev, DE4X5_STS) & (STS_TS | STS_RS)) != 0) {
printf("Error: Cannot reset ethernet controller.\n");
- return 0;
+ return -1;
}
#ifdef CONFIG_TULIP_SELECT_MEDIA
@@ -382,7 +382,7 @@ static int dc21x4x_init(struct eth_device* dev, bd_t* bis)
send_setup_frame(dev, bis);
- return 1;
+ return 0;
}
static int dc21x4x_send(struct eth_device* dev, volatile void *packet, int length)
diff --git a/drivers/net/eepro100.c b/drivers/net/eepro100.c
index 738146e..96ed271 100644
--- a/drivers/net/eepro100.c
+++ b/drivers/net/eepro100.c
@@ -485,7 +485,7 @@ int eepro100_initialize (bd_t * bis)
static int eepro100_init (struct eth_device *dev, bd_t * bis)
{
- int i, status = 0;
+ int i, status = -1;
int tx_cur;
struct descriptor *ias_cmd, *cfg_cmd;
@@ -598,7 +598,7 @@ static int eepro100_init (struct eth_device *dev, bd_t * bis)
goto Done;
}
- status = 1;
+ status = 0;
Done:
return status;
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index 95cdc49..6657d22 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -423,12 +423,12 @@ static int macb_init(struct eth_device *netdev, bd_t *bd)
#endif
if (!macb_phy_init(macb))
- return 0;
+ return -1;
/* Enable TX and RX */
macb_writel(macb, NCR, MACB_BIT(TE) | MACB_BIT(RE));
- return 1;
+ return 0;
}
static void macb_halt(struct eth_device *netdev)
diff --git a/drivers/net/pcnet.c b/drivers/net/pcnet.c
index 2af0e8f..4e270c9 100644
--- a/drivers/net/pcnet.c
+++ b/drivers/net/pcnet.c
@@ -402,7 +402,7 @@ static int pcnet_init(struct eth_device* dev, bd_t *bis)
if (i <= 0) {
printf("%s: TIMEOUT: controller init failed\n", dev->name);
pcnet_reset (dev);
- return 0;
+ return -1;
}
/*
@@ -410,7 +410,7 @@ static int pcnet_init(struct eth_device* dev, bd_t *bis)
*/
pcnet_write_csr (dev, 0, 0x0002);
- return 1;
+ return 0;
}
static int pcnet_send(struct eth_device* dev, volatile void *packet, int pkt_len)
diff --git a/drivers/net/rtl8139.c b/drivers/net/rtl8139.c
index 2367180..4c24805 100644
--- a/drivers/net/rtl8139.c
+++ b/drivers/net/rtl8139.c
@@ -273,10 +273,10 @@ static int rtl8139_probe(struct eth_device *dev, bd_t *bis)
if (inb(ioaddr + MediaStatus) & MSRLinkFail) {
printf("Cable not connected or other link failure\n");
- return(0);
+ return -1 ;
}
- return 1;
+ return 0;
}
/* Serial EEPROM section. */
diff --git a/drivers/net/rtl8169.c b/drivers/net/rtl8169.c
index 63ea2cc..0c9a401 100644
--- a/drivers/net/rtl8169.c
+++ b/drivers/net/rtl8169.c
@@ -620,7 +620,7 @@ static void rtl8169_init_ring(struct eth_device *dev)
/**************************************************************************
RESET - Finish setting up the ethernet interface
***************************************************************************/
-static void rtl_reset(struct eth_device *dev, bd_t *bis)
+static int rtl_reset(struct eth_device *dev, bd_t *bis)
{
int i;
u8 diff;
@@ -649,7 +649,7 @@ static void rtl_reset(struct eth_device *dev, bd_t *bis)
if (tpc->TxDescArrays == NULL || tpc->RxDescArrays == NULL) {
puts("Allocate RxDescArray or TxDescArray failed\n");
- return;
+ return -1;
}
rtl8169_init_ring(dev);
@@ -669,6 +669,7 @@ static void rtl_reset(struct eth_device *dev, bd_t *bis)
#ifdef DEBUG_RTL8169
printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime);
#endif
+ return 0;
}
/**************************************************************************
diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c
index ca6284b..c1a2f07 100644
--- a/drivers/net/tsec.c
+++ b/drivers/net/tsec.c
@@ -232,7 +232,7 @@ int tsec_init(struct eth_device *dev, bd_t * bd)
startup_tsec(dev);
/* If there's no link, fail */
- return priv->link;
+ return (priv->link ? 0 : -1);
}
diff --git a/drivers/net/tsi108_eth.c b/drivers/net/tsi108_eth.c
index 524e9da..a09115e 100644
--- a/drivers/net/tsi108_eth.c
+++ b/drivers/net/tsi108_eth.c
@@ -792,7 +792,7 @@ static int tsi108_eth_probe (struct eth_device *dev, bd_t * bis)
(dev->enetaddr[0] << 16);
if (marvell_88e_phy_config(dev, &speed, &duplex) == 0)
- return 0;
+ return -1;
value =
MAC_CONFIG_2_PREAMBLE_LENGTH(7) | MAC_CONFIG_2_PAD_CRC |
@@ -864,7 +864,7 @@ static int tsi108_eth_probe (struct eth_device *dev, bd_t * bis)
/* enable TX queue */
reg_TX_CONTROL(base) = TX_CONTROL_GO | 0x01;
- return 1;
+ return 0;
}
/*
diff --git a/drivers/net/uli526x.c b/drivers/net/uli526x.c
index 1267c57..8460f69 100644
--- a/drivers/net/uli526x.c
+++ b/drivers/net/uli526x.c
@@ -279,12 +279,12 @@ static int uli526x_init_one(struct eth_device *dev, bd_t *bis)
db->desc_pool_ptr = (uchar *)&desc_pool_array[0];
db->desc_pool_dma_ptr = (dma_addr_t)&desc_pool_array[0];
if (db->desc_pool_ptr == NULL)
- return 0;
+ return -1;
db->buf_pool_ptr = &buf_pool[0];
db->buf_pool_dma_ptr = (dma_addr_t)&buf_pool[0];
if (db->buf_pool_ptr == NULL)
- return 0;
+ return -1;
db->first_tx_desc = (struct tx_desc *) db->desc_pool_ptr;
db->first_tx_desc_dma = db->desc_pool_dma_ptr;
@@ -331,7 +331,7 @@ static int uli526x_init_one(struct eth_device *dev, bd_t *bis)
db->cr6_data |= ULI526X_TXTH_256;
db->cr0_data = CR0_DEFAULT;
uli526x_init(dev);
- return 1;
+ return 0;
}
static void uli526x_disable(struct eth_device *dev)
diff --git a/drivers/qe/uec.c b/drivers/qe/uec.c
index dc2765b..26cfa2b 100644
--- a/drivers/qe/uec.c
+++ b/drivers/qe/uec.c
@@ -1110,7 +1110,7 @@ static int uec_init(struct eth_device* dev, bd_t *bd)
if (dev->enetaddr[0] & 0x01) {
printf("%s: MacAddress is multcast address\n",
__FUNCTION__);
- return 0;
+ return -1;
}
uec_set_mac_address(uec, dev->enetaddr);
uec->the_first_run = 1;
@@ -1119,10 +1119,10 @@ static int uec_init(struct eth_device* dev, bd_t *bd)
err = uec_open(uec, COMM_DIR_RX_AND_TX);
if (err) {
printf("%s: cannot enable UEC device\n", dev->name);
- return 0;
+ return -1;
}
- return uec->mii_info->link;
+ return (uec->mii_info->link ? 0 : -1);
}
static void uec_halt(struct eth_device* dev)
diff --git a/net/eth.c b/net/eth.c
index 3373a05..92a91a1 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -430,7 +430,7 @@ int eth_init(bd_t *bis)
do {
debug ("Trying %s\n", eth_current->name);
- if (!eth_current->init(eth_current,bis)) {
+ if (eth_current->init(eth_current,bis) >= 0) {
eth_current->state = ETH_STATE_ACTIVE;
return 0;
--
1.5.2.5
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