
Thompson, Nick (GE EntSol, Intelligent Platforms) wrote:
Add a driver for the DA830 EMAC.
This is very similar to the davinci_emac driver. It has been restructured to make it as similar as possible. Potentially the two could be merged, but I don't have access to other davinci type platforms to test for breakage after the inevitable mangling required.
Signed-off-by: Nick Thompson nick.thompson@gefanuc.com
Ben, Can I pass this review off to you ? Tom
Applies to u-boot-ti
drivers/net/Makefile | 1 + drivers/net/da8xx_emac.c | 654 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 655 insertions(+), 0 deletions(-)
diff --git a/drivers/net/Makefile b/drivers/net/Makefile index be5c484..9cbe736 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -68,6 +68,7 @@ COBJS-$(CONFIG_DRIVER_SMC91111) += smc91111.o COBJS-$(CONFIG_SMC911X) += smc911x.o COBJS-$(CONFIG_TIGON3) += tigon3.o bcm570x_autoneg.o 5701rls.o COBJS-$(CONFIG_DRIVER_TI_EMAC) += davinci_emac.o +COBJS-$(CONFIG_DRIVER_DA8XX_EMAC) += da8xx_emac.o COBJS-$(CONFIG_TSEC_ENET) += tsec.o COBJS-$(CONFIG_TSI108_ETH) += tsi108_eth.o COBJS-$(CONFIG_ULI526X) += uli526x.o diff --git a/drivers/net/da8xx_emac.c b/drivers/net/da8xx_emac.c new file mode 100644 index 0000000..e1d232f --- /dev/null +++ b/drivers/net/da8xx_emac.c @@ -0,0 +1,654 @@ +/*
- Ethernet driver for TI OMAP-L1x/DA8xx chips.
- Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. nick.thompson@gefanuc.com
- Much of this is very similar to the davinci_emac driver. Possibly they
- could be merged, but I have no access to non DA8xx platforms
- and can't test for breakage after the inevitable mangling.
- Code base is not new. Original copyright follows:
- Ethernet driver for TI TMS320DM644x (DaVinci) chips.
- Copyright (C) 2007 Sergey Kubushyn ksi@koi8.net
- Parts shamelessly stolen from TI's dm644x_emac.c. Original copyright
- follows:
- dm644x_emac.c
- TI DaVinci (DM644X) EMAC peripheral driver source for DV-EVM
- Copyright (C) 2005 Texas Instruments.
- 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 2 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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
+#include <common.h> +#include <command.h> +#include <net.h> +#include <miiphy.h> +#include <malloc.h> +#include <asm/arch/emac_defs.h>
+#ifdef CONFIG_DRIVER_DA8XX_EMAC
+#ifdef CONFIG_CMD_NET
+unsigned int emac_dbg = 0; +#define debug_emac(fmt,args...) if (emac_dbg) printf(fmt,##args)
+/* Internal static functions */ +static int da8xx_eth_open (struct eth_device *dev, bd_t *bis); +static void da8xx_eth_close (struct eth_device *dev); +static int da8xx_eth_send_packet (struct eth_device *dev, volatile void *packet, int length); +static int da8xx_eth_rcv_packet (struct eth_device *dev); +static void da8xx_eth_mdio_enable(void);
+static int gen_init_phy(int phy_addr); +static int gen_is_phy_connected(int phy_addr); +static int gen_get_link_speed(int phy_addr); +static int gen_auto_negotiate(int phy_addr);
+/* mac address for EMAC registers only (not packet data) */ +static u_int8_t da8xx_eth_mac_addr[] = { 0x00, 0xff, 0xff, 0xff, 0xff, 0x00 };
+/*
- This function must be called before emac_open() if you want to override
- the default mac address.
- */
+void da8xx_eth_set_mac_addr(const u_int8_t *addr) +{
- int i;
- for (i = 0; i < sizeof (da8xx_eth_mac_addr); i++) {
da8xx_eth_mac_addr[i] = addr[i];
- }
+}
+/* EMAC Addresses */ +static volatile emac_regs *adap_emac = (emac_regs *)EMAC_BASE_ADDR; +static volatile ewrap_regs *adap_ewrap = (ewrap_regs *)EMAC_WRAPPER_BASE_ADDR; +static volatile mdio_regs *adap_mdio = (mdio_regs *)EMAC_MDIO_BASE_ADDR;
+/* EMAC descriptors */ +static volatile emac_desc *emac_rx_desc = (emac_desc *)(EMAC_WRAPPER_RAM_ADDR + EMAC_RX_DESC_BASE); +static volatile emac_desc *emac_tx_desc = (emac_desc *)(EMAC_WRAPPER_RAM_ADDR + EMAC_TX_DESC_BASE); +static volatile emac_desc *emac_rx_active_head = 0; +static volatile emac_desc *emac_rx_active_tail = 0; +static int emac_rx_queue_active = 0;
+/* Receive packet buffers */ +static unsigned char emac_rx_buffers[EMAC_MAX_RX_BUFFERS * (EMAC_MAX_ETHERNET_PKT_SIZE + EMAC_PKT_ALIGN)];
+/* PHY address for a discovered PHY (0xff - not found) */ +static volatile u_int8_t active_phy_addr = 0xff;
+static int no_phy_init (int phy_addr) { return(1); } +static int no_phy_is_connected (int phy_addr) { return(1); } +static int no_phy_get_link_speed (int phy_addr) { return(1); } +static int no_phy_auto_negotiate (int phy_addr) { return(1); } +phy_t phy = {
- .name = "da8xx_evm",
- .init = no_phy_init,
- .is_phy_connected = no_phy_is_connected,
- .get_link_speed = no_phy_get_link_speed,
- .auto_negotiate = no_phy_auto_negotiate
+};
+static void da8xx_eth_mdio_enable(void) +{
- u_int32_t clkdiv;
- clkdiv = (EMAC_MDIO_BUS_FREQ / EMAC_MDIO_CLOCK_FREQ) - 1;
- adap_mdio->CONTROL = (clkdiv & 0xff) |
MDIO_CONTROL_ENABLE |
MDIO_CONTROL_FAULT |
MDIO_CONTROL_FAULT_ENABLE;
- while (adap_mdio->CONTROL & MDIO_CONTROL_IDLE) {;}
+}
+/*
- Tries to find an active connected PHY. Returns 1 if address if found.
- If no active PHY found returns 0. If more than one active PHY (switch)
- returns 2
- Sets active_phy_addr variable when returns 1.
- */
+static int da8xx_eth_phy_detect(void) +{
- u_int32_t phy_act_state;
- int i;
- active_phy_addr = 0xff;
- if ((phy_act_state = adap_mdio->ALIVE) == 0)
return(0); /* No active PHYs */
- debug_emac("da8xx_eth_phy_detect(), ALIVE = 0x%08x\n", phy_act_state);
- for (i = 0; i < 32; i++) {
if (phy_act_state & (1 << i)) {
if (phy_act_state & ~(1 << i))
return(2); /* More than one PHY */
else {
active_phy_addr = i;
return(1);
}
}
- }
- return(0); /* Just to make GCC happy */
+}
+/* Read a PHY register via MDIO inteface. Returns 1 on success, 0 otherwise */ +int da8xx_eth_phy_read(u_int8_t phy_addr, u_int8_t reg_num, u_int16_t *data) +{
- int tmp;
- while (adap_mdio->USERACCESS0 & MDIO_USERACCESS0_GO) {;}
- adap_mdio->USERACCESS0 = MDIO_USERACCESS0_GO |
MDIO_USERACCESS0_WRITE_READ |
((reg_num & 0x1f) << 21) |
((phy_addr & 0x1f) << 16);
- /* Wait for command to complete */
- while ((tmp = adap_mdio->USERACCESS0) & MDIO_USERACCESS0_GO) {;}
- if (tmp & MDIO_USERACCESS0_ACK) {
*data = tmp & 0xffff;
return(1);
- }
- *data = -1;
- return(0);
+}
+/* Write to a PHY register via MDIO inteface. Blocks until operation is complete. */ +int da8xx_eth_phy_write(u_int8_t phy_addr, u_int8_t reg_num, u_int16_t data) +{
- while (adap_mdio->USERACCESS0 & MDIO_USERACCESS0_GO) {;}
- adap_mdio->USERACCESS0 = MDIO_USERACCESS0_GO |
MDIO_USERACCESS0_WRITE_WRITE |
((reg_num & 0x1f) << 21) |
((phy_addr & 0x1f) << 16) |
(data & 0xffff);
- /* Wait for command to complete */
- while (adap_mdio->USERACCESS0 & MDIO_USERACCESS0_GO) {;}
- return(1);
+}
+/* PHY functions for a generic PHY */ +static int gen_init_phy(int phy_addr) +{
- int ret = 1;
- if (gen_get_link_speed(phy_addr)) {
/* Try another time */
ret = gen_get_link_speed(phy_addr);
- }
- return(ret);
+}
+static int gen_is_phy_connected(int phy_addr) +{
- u_int16_t dummy;
- return(da8xx_eth_phy_read(phy_addr, PHY_PHYIDR1, &dummy));
+}
+static int gen_get_link_speed(int phy_addr) +{
- u_int16_t tmp;
- if (da8xx_eth_phy_read(phy_addr, MII_STATUS_REG, &tmp) && (tmp & 0x04))
return(1);
- return(0);
+}
+static int gen_auto_negotiate(int phy_addr) +{
- u_int16_t tmp;
- if (!da8xx_eth_phy_read(phy_addr, PHY_BMCR, &tmp))
return(0);
- /* Restart Auto_negotiation */
- tmp |= PHY_BMCR_AUTON;
- da8xx_eth_phy_write(phy_addr, PHY_BMCR, tmp);
- /*check AutoNegotiate complete */
- udelay (10000);
- if (!da8xx_eth_phy_read(phy_addr, PHY_BMSR, &tmp))
return(0);
- if (!(tmp & PHY_BMSR_AUTN_COMP))
return(0);
- return(gen_get_link_speed(phy_addr));
+} +/* End of generic PHY functions */
+#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) +static int da8xx_mii_phy_read(char *devname, unsigned char addr, unsigned char reg, unsigned short *value) +{
- return(da8xx_eth_phy_read(addr, reg, value) ? 0 : 1);
+}
+static int da8xx_mii_phy_write(char *devname, unsigned char addr, unsigned char reg, unsigned short value) +{
- return(da8xx_eth_phy_write(addr, reg, value) ? 0 : 1);
+}
+#endif
+/*
- This function initializes the emac hardware. It does NOT initialize
- EMAC modules power or pin multiplexors, that is done by board_init()
- much earlier in bootup process. Returns 1 on success, 0 otherwise.
- */
+int da8xx_eth_hw_init(void) +{
- u_int32_t phy_id;
- u_int16_t tmp;
- int i, ret;
- struct eth_device *dev;
- /* register the ethernet driver functions */
- dev = malloc(sizeof *dev);
- if (dev == NULL) {
return -1;
- }
- dev->iobase = 0;
- dev->init = da8xx_eth_open;
- dev->halt = da8xx_eth_close;
- dev->send = da8xx_eth_send_packet;
- dev->recv = da8xx_eth_rcv_packet;
- eth_register(dev);
- /* The RMII clock can be sources internally through the SYSCLK7
* or can come externally through a dedicated pin. This selection is
* controlled by PinMux9[21]. PinMux registers are off-limits for ARM.
* In short, we just assume there is a 50MHz RMII clock available.
*/
- da8xx_eth_mdio_enable();
- for (i = 0; i < 256; i++) {
if (adap_mdio->ALIVE)
break;
udelay(1000);
- }
- if (i >= 256) {
printf("No ETH PHY detected!!!\n");
return(0);
- }
- /* Find if a PHY is connected and get it's address */
- ret = da8xx_eth_phy_detect();
- if (ret == 0)
return 0;
- if (ret == 2) {
printf("More than one PHY detected.\n");
- } else {
/* Get PHY ID and initialize phy_ops for a detected PHY */
if (!da8xx_eth_phy_read(active_phy_addr, PHY_PHYIDR1, &tmp)) {
active_phy_addr = 0xff;
return(0);
}
phy_id = (tmp << 16) & 0xffff0000;
if (!da8xx_eth_phy_read(active_phy_addr, PHY_PHYIDR2, &tmp)) {
active_phy_addr = 0xff;
return(0);
}
phy_id |= tmp & 0x0000ffff;
switch (phy_id) {
default:
sprintf(phy.name, "GENERIC @ 0x%02x", active_phy_addr);
phy.init = gen_init_phy;
phy.is_phy_connected = gen_is_phy_connected;
phy.get_link_speed = gen_get_link_speed;
phy.auto_negotiate = gen_auto_negotiate;
}
- }
- miiphy_register(phy.name, da8xx_mii_phy_read, da8xx_mii_phy_write);
- return(1);
+}
+/* Eth device open */ +static int da8xx_eth_open(struct eth_device *dev, bd_t *bis) +{
- dv_reg_p addr;
- u_int32_t clkdiv, cnt;
- volatile emac_desc *rx_desc;
- int i;
- debug_emac("+ emac_open\n");
- /* Reset EMAC module and disable interrupts in wrapper */
- adap_emac->SOFTRESET = 1;
- while (adap_emac->SOFTRESET != 0) {;}
- adap_ewrap->SOFTRESET = 1;
- while (adap_ewrap->SOFTRESET != 0) {;}
- adap_ewrap->C0RXEN = adap_ewrap->C1RXEN = adap_ewrap->C2RXEN = 0;
- adap_ewrap->C0TXEN = adap_ewrap->C1TXEN = adap_ewrap->C2TXEN = 0;
- adap_ewrap->C0MISCEN = adap_ewrap->C1MISCEN = adap_ewrap->C2MISCEN = 0;
- rx_desc = emac_rx_desc;
- adap_emac->TXCONTROL = 0x01;
- adap_emac->RXCONTROL = 0x01;
- /* Set MAC Addresses & Init multicast Hash to 0 (disable any multicast receive) */
- /* Using channel 0 only - other channels are disabled */
- for (i = 0; i < 8; i++) {
adap_emac->MACINDEX = i;
adap_emac->MACADDRHI =
(da8xx_eth_mac_addr[3] << 24) | /* bits 23-16 */
(da8xx_eth_mac_addr[2] << 16) | /* bits 31-24 */
(da8xx_eth_mac_addr[1] << 8) | /* bits 39-32 */
(da8xx_eth_mac_addr[0]); /* bits 47-40 */
adap_emac->MACADDRLO =
(da8xx_eth_mac_addr[5] << 8) | /* bits 8-0*/
(da8xx_eth_mac_addr[4]) | (1 << 19) | (1 << 20); /* bits 8-0 */
- }
- adap_emac->MACHASH1 = 0;
- adap_emac->MACHASH2 = 0;
- /* Set source MAC address - REQUIRED for pause frames */
- adap_emac->MACSRCADDRHI =
(da8xx_eth_mac_addr[3] << 24) | /* bits 23-16 */
(da8xx_eth_mac_addr[2] << 16) | /* bits 31-24 */
(da8xx_eth_mac_addr[1] << 8) | /* bits 39-32 */
(da8xx_eth_mac_addr[0]); /* bits 47-40 */
- adap_emac->MACSRCADDRLO =
(da8xx_eth_mac_addr[5] << 8) | /* bits 8-0 */
(da8xx_eth_mac_addr[4]); /* bits 15-8 */
- /* Set DMA 8 TX / 8 RX Head pointers to 0 */
- addr = &adap_emac->TX0HDP;
- for(cnt = 0; cnt < 16; cnt++)
*addr++ = 0;
- addr = &adap_emac->TX0CP;
- for(cnt = 0; cnt < 16; cnt++)
*addr++ = 0;
- /* Clear Statistics (do this before setting MacControl register) */
- addr = &adap_emac->RXGOODFRAMES;
- for(cnt = 0; cnt < EMAC_NUM_STATS; cnt++)
*addr++ = 0;
- /* No multicast addressing */
- adap_emac->MACHASH1 = 0;
- adap_emac->MACHASH2 = 0;
- /* Create RX queue and set receive process in place */
- emac_rx_active_head = emac_rx_desc;
- for (cnt = 0; cnt < EMAC_MAX_RX_BUFFERS; cnt++) {
rx_desc->next = (u_int32_t)(rx_desc + 1);
rx_desc->buffer = &emac_rx_buffers[cnt * (EMAC_MAX_ETHERNET_PKT_SIZE + EMAC_PKT_ALIGN)];
rx_desc->buff_off_len = EMAC_MAX_ETHERNET_PKT_SIZE;
rx_desc->pkt_flag_len = EMAC_CPPI_OWNERSHIP_BIT;
rx_desc++;
- }
- /* Set the last descriptor's "next" parameter to 0 to end the RX desc list */
- rx_desc--;
- rx_desc->next = 0;
- emac_rx_active_tail = rx_desc;
- emac_rx_queue_active = 1;
- /* Enable TX/RX */
- adap_emac->RXMAXLEN = EMAC_MAX_ETHERNET_PKT_SIZE;
- adap_emac->RXBUFFEROFFSET = 0;
- /* No fancy configs - Use this for promiscous for debug - EMAC_RXMBPENABLE_RXCAFEN_ENABLE */
- adap_emac->RXMBPENABLE = EMAC_RXMBPENABLE_RXBROADEN;
- /* Enable ch 0 only */
- adap_emac->RXUNICASTSET = 0x01;
- /* Enable MII interface and Full duplex mode */
- adap_emac->MACCONTROL = (EMAC_MACCONTROL_MIIEN_ENABLE | EMAC_MACCONTROL_FULLDUPLEX_ENABLE) | EMAC_MACCONTROL_RMIISPEED_100;
- /* Init MDIO & get link state */
- clkdiv = (EMAC_MDIO_BUS_FREQ / EMAC_MDIO_CLOCK_FREQ) - 1;
- adap_mdio->CONTROL = ((clkdiv & 0xff) | MDIO_CONTROL_ENABLE | MDIO_CONTROL_FAULT);
- if (!phy.get_link_speed(active_phy_addr))
return(0);
- /* Start receive process */
- adap_emac->RX0HDP = (u_int32_t)emac_rx_desc;
- debug_emac("- emac_open\n");
- return(1);
+}
+/* EMAC Channel Teardown */ +static void da8xx_eth_ch_teardown(int ch) +{
- dv_reg dly = 0xff;
- dv_reg cnt;
- debug_emac("+ emac_ch_teardown\n");
- if (ch == EMAC_CH_TX) {
/* Init TX channel teardown */
adap_emac->TXTEARDOWN = 1;
for(cnt = 0; cnt != 0xfffffffc; cnt = adap_emac->TX0CP) {
/* Wait here for Tx teardown completion interrupt to occur
* Note: A task delay can be called here to pend rather than
* occupying CPU cycles - anyway it has been found that teardown
* takes very few cpu cycles and does not affect functionality */
dly--;
udelay(1);
if (dly == 0)
break;
}
adap_emac->TX0CP = cnt;
adap_emac->TX0HDP = 0;
- } else {
/* Init RX channel teardown */
adap_emac->RXTEARDOWN = 1;
for(cnt = 0; cnt != 0xfffffffc; cnt = adap_emac->RX0CP) {
/* Wait here for Rx teardown completion interrupt to occur
* Note: A task delay can be called here to pend rather than
* occupying CPU cycles - anyway it has been found that teardown
* takes very few cpu cycles and does not affect functionality */
dly--;
udelay(1);
if (dly == 0)
break;
}
adap_emac->RX0CP = cnt;
adap_emac->RX0HDP = 0;
- }
- debug_emac("- emac_ch_teardown\n");
+}
+/* Eth device close */ +static void da8xx_eth_close(struct eth_device *dev) +{
- debug_emac("+ emac_close\n");
- da8xx_eth_ch_teardown(EMAC_CH_TX); /* TX Channel teardown */
- da8xx_eth_ch_teardown(EMAC_CH_RX); /* RX Channel teardown */
- /* Reset EMAC module and disable interrupts in wrapper */
- adap_emac->SOFTRESET = 1;
- adap_ewrap->SOFTRESET = 1;
- adap_ewrap->C0RXEN = adap_ewrap->C1RXEN = adap_ewrap->C2RXEN = 0;
- adap_ewrap->C0TXEN = adap_ewrap->C1TXEN = adap_ewrap->C2TXEN = 0;
- adap_ewrap->C0MISCEN = adap_ewrap->C1MISCEN = adap_ewrap->C2MISCEN = 0;
- debug_emac("- emac_close\n");
+}
+static int tx_send_loop = 0;
+/*
- This function sends a single packet on the network and returns
- positive number (number of bytes transmitted) or negative for error
- */
+static int da8xx_eth_send_packet(struct eth_device *dev, volatile void *packet, int length) +{
- int ret_status = -1;
- tx_send_loop = 0;
- /* Return error if no link */
- if (!phy.get_link_speed(active_phy_addr))
- {
printf("WARN: emac_send_packet: No link\n");
return (ret_status);
- }
- /* Check packet size and if < EMAC_MIN_ETHERNET_PKT_SIZE, pad it up */
- if (length < EMAC_MIN_ETHERNET_PKT_SIZE)
- {
length = EMAC_MIN_ETHERNET_PKT_SIZE;
- }
- /* Populate the TX descriptor */
- emac_tx_desc->next = 0;
- emac_tx_desc->buffer = (u_int8_t *)packet;
- emac_tx_desc->buff_off_len = (length & 0xffff);
- emac_tx_desc->pkt_flag_len = ((length & 0xffff) |
EMAC_CPPI_SOP_BIT |
EMAC_CPPI_OWNERSHIP_BIT |
EMAC_CPPI_EOP_BIT);
- /* Send the packet */
- adap_emac->TX0HDP = (unsigned int)emac_tx_desc;
- /* Wait for packet to complete or link down */
- while (1) {
if (!phy.get_link_speed(active_phy_addr)) {
da8xx_eth_ch_teardown(EMAC_CH_TX);
return (ret_status);
}
if (adap_emac->TXINTSTATRAW & 0x01) {
ret_status = length;
break;
}
tx_send_loop++;
- }
- return(ret_status);
+}
+/*
- This function handles receipt of a packet from the network
- */
+static int da8xx_eth_rcv_packet(struct eth_device *dev) +{
- volatile emac_desc *rx_curr_desc;
- volatile emac_desc *curr_desc;
- volatile emac_desc *tail_desc;
- int status, ret = -1;
- rx_curr_desc = emac_rx_active_head;
- status = rx_curr_desc->pkt_flag_len;
- if ((rx_curr_desc) && ((status & EMAC_CPPI_OWNERSHIP_BIT) == 0)) {
if (status & EMAC_CPPI_RX_ERROR_FRAME) {
/* Error in packet - discard it and requeue desc */
printf("WARN: emac_rcv_pkt: Error in packet\n");
} else {
NetReceive(rx_curr_desc->buffer, (rx_curr_desc->buff_off_len & 0xffff));
ret = rx_curr_desc->buff_off_len & 0xffff;
}
/* Ack received packet descriptor */
adap_emac->RX0CP = (unsigned int)rx_curr_desc;
curr_desc = rx_curr_desc;
emac_rx_active_head = (volatile emac_desc *)rx_curr_desc->next;
if (status & EMAC_CPPI_EOQ_BIT) {
if (emac_rx_active_head) {
adap_emac->RX0HDP = (unsigned int)emac_rx_active_head;
} else {
emac_rx_queue_active = 0;
printf("INFO:emac_rcv_packet: RX Queue not active\n");
}
}
/* Recycle RX descriptor */
rx_curr_desc->buff_off_len = EMAC_MAX_ETHERNET_PKT_SIZE;
rx_curr_desc->pkt_flag_len = EMAC_CPPI_OWNERSHIP_BIT;
rx_curr_desc->next = 0;
if (emac_rx_active_head == 0) {
printf("INFO: emac_rcv_pkt: active queue head = 0\n");
emac_rx_active_head = curr_desc;
emac_rx_active_tail = curr_desc;
if (emac_rx_queue_active != 0) {
adap_emac->RX0HDP = (unsigned int)emac_rx_active_head;
printf("INFO: emac_rcv_pkt: active queue head = 0, HDP fired\n");
emac_rx_queue_active = 1;
}
} else {
tail_desc = emac_rx_active_tail;
emac_rx_active_tail = curr_desc;
tail_desc->next = (unsigned int)curr_desc;
status = tail_desc->pkt_flag_len;
if (status & EMAC_CPPI_EOQ_BIT) {
adap_emac->RX0HDP = (unsigned int)curr_desc;
status &= ~EMAC_CPPI_EOQ_BIT;
tail_desc->pkt_flag_len = status;
}
}
return(ret);
- }
- return(0);
+}
+#endif /* CONFIG_CMD_NET */
+#endif /* CONFIG_DRIVER_DA8XX_EMAC */ _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot