X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fnet%2Fdavinci_emac.c;h=08bc1afcf638be1dbde9e1c23662a829c2bfa298;hb=ade8bc14ad419f698406b162c9c5dfeee7406b4c;hp=2ac6874b35824593a5d200bdf021ea3c3c070448;hpb=82b772178d0f3d7f3cb246138197028795edf004;p=u-boot diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c index 2ac6874b35..08bc1afcf6 100644 --- a/drivers/net/davinci_emac.c +++ b/drivers/net/davinci_emac.c @@ -16,31 +16,19 @@ * * ---------------------------------------------------------------------------- * - * 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. + * SPDX-License-Identifier: GPL-2.0+ * - * 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. - * ---------------------------------------------------------------------------- - * Modifications: * ver. 1.0: Sep 2005, Anant Gole - Created EMAC version for uBoot. * ver 1.1: Nov 2005, Anant Gole - Extended the RX logic for multiple descriptors - * */ #include #include #include #include #include +#include +#include #include #include #include "davinci_emac.h" @@ -105,7 +93,8 @@ 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)]; +static unsigned char emac_rx_buffers[EMAC_MAX_RX_BUFFERS * EMAC_RXBUF_SIZE] + __aligned(ARCH_DMA_MINALIGN); #ifndef CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT #define CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT 3 @@ -119,6 +108,26 @@ static u_int8_t num_phy; phy_t phy[CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT]; +static inline void davinci_flush_rx_descs(void) +{ + /* flush the whole RX descs area */ + flush_dcache_range(EMAC_WRAPPER_RAM_ADDR + EMAC_RX_DESC_BASE, + EMAC_WRAPPER_RAM_ADDR + EMAC_TX_DESC_BASE); +} + +static inline void davinci_invalidate_rx_descs(void) +{ + /* invalidate the whole RX descs area */ + invalidate_dcache_range(EMAC_WRAPPER_RAM_ADDR + EMAC_RX_DESC_BASE, + EMAC_WRAPPER_RAM_ADDR + EMAC_TX_DESC_BASE); +} + +static inline void davinci_flush_desc(emac_desc *desc) +{ + flush_dcache_range((unsigned long)desc, + (unsigned long)desc + sizeof(*desc)); +} + static int davinci_eth_set_mac_addr(struct eth_device *dev) { unsigned long mac_hi; @@ -198,7 +207,7 @@ static int davinci_eth_phy_detect(void) for (i = 0, j = 0; i < 32; i++) if (phy_act_state & (1 << i)) { count++; - if (count < CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT) { + if (count <= CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT) { active_phy_addr[j++] = i; } else { printf("%s: to many PHYs detected.\n", @@ -470,7 +479,7 @@ static int davinci_eth_open(struct eth_device *dev, bd_t *bis) emac_rx_active_head = emac_rx_desc; for (cnt = 0; cnt < EMAC_MAX_RX_BUFFERS; cnt++) { rx_desc->next = BD_TO_HW((u_int32_t)(rx_desc + 1)); - rx_desc->buffer = &emac_rx_buffers[cnt * (EMAC_MAX_ETHERNET_PKT_SIZE + EMAC_PKT_ALIGN)]; + rx_desc->buffer = &emac_rx_buffers[cnt * EMAC_RXBUF_SIZE]; rx_desc->buff_off_len = EMAC_MAX_ETHERNET_PKT_SIZE; rx_desc->pkt_flag_len = EMAC_CPPI_OWNERSHIP_BIT; rx_desc++; @@ -482,6 +491,8 @@ static int davinci_eth_open(struct eth_device *dev, bd_t *bis) emac_rx_active_tail = rx_desc; emac_rx_queue_active = 1; + davinci_flush_rx_descs(); + /* Enable TX/RX */ writel(EMAC_MAX_ETHERNET_PKT_SIZE, &adap_emac->RXMAXLEN); writel(0, &adap_emac->RXBUFFEROFFSET); @@ -496,7 +507,8 @@ static int davinci_eth_open(struct eth_device *dev, bd_t *bis) writel(1, &adap_emac->RXUNICASTSET); /* Enable MII interface and Full duplex mode */ -#ifdef CONFIG_SOC_DA8XX +#if defined(CONFIG_SOC_DA8XX) || \ + (defined(CONFIG_OMAP34XX) && defined(CONFIG_DRIVER_TI_EMAC_USE_RMII)) writel((EMAC_MACCONTROL_MIIEN_ENABLE | EMAC_MACCONTROL_FULLDUPLEX_ENABLE | EMAC_MACCONTROL_RMIISPEED_100), @@ -612,7 +624,7 @@ static int tx_send_loop = 0; * positive number (number of bytes transmitted) or negative for error */ static int davinci_eth_send_packet (struct eth_device *dev, - volatile void *packet, int length) + void *packet, int length) { int ret_status = -1; int index; @@ -639,6 +651,11 @@ static int davinci_eth_send_packet (struct eth_device *dev, EMAC_CPPI_SOP_BIT | EMAC_CPPI_OWNERSHIP_BIT | EMAC_CPPI_EOP_BIT); + + flush_dcache_range((unsigned long)packet, + (unsigned long)packet + length); + davinci_flush_desc(emac_tx_desc); + /* Send the packet */ writel(BD_TO_HW((unsigned long)emac_tx_desc), &adap_emac->TX0HDP); @@ -671,6 +688,8 @@ static int davinci_eth_rcv_packet (struct eth_device *dev) volatile emac_desc *tail_desc; int status, ret = -1; + davinci_invalidate_rx_descs(); + rx_curr_desc = emac_rx_active_head; status = rx_curr_desc->pkt_flag_len; if ((rx_curr_desc) && ((status & EMAC_CPPI_OWNERSHIP_BIT) == 0)) { @@ -678,6 +697,9 @@ static int davinci_eth_rcv_packet (struct eth_device *dev) /* Error in packet - discard it and requeue desc */ printf ("WARN: emac_rcv_pkt: Error in packet\n"); } else { + unsigned long tmp = (unsigned long)rx_curr_desc->buffer; + + invalidate_dcache_range(tmp, tmp + EMAC_RXBUF_SIZE); NetReceive (rx_curr_desc->buffer, (rx_curr_desc->buff_off_len & 0xffff)); ret = rx_curr_desc->buff_off_len & 0xffff; @@ -703,6 +725,7 @@ static int davinci_eth_rcv_packet (struct eth_device *dev) 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; + davinci_flush_desc(rx_curr_desc); if (emac_rx_active_head == 0) { printf ("INFO: emac_rcv_pkt: active queue head = 0\n"); @@ -720,11 +743,13 @@ static int davinci_eth_rcv_packet (struct eth_device *dev) tail_desc->next = BD_TO_HW((ulong) curr_desc); status = tail_desc->pkt_flag_len; if (status & EMAC_CPPI_EOQ_BIT) { + davinci_flush_desc(tail_desc); writel(BD_TO_HW((ulong)curr_desc), &adap_emac->RX0HDP); status &= ~EMAC_CPPI_EOQ_BIT; tail_desc->pkt_flag_len = status; } + davinci_flush_desc(tail_desc); } return (ret); } @@ -803,6 +828,7 @@ int davinci_emac_initialize(void) phy_id |= tmp & 0x0000ffff; switch (phy_id) { +#ifdef PHY_KSZ8873 case PHY_KSZ8873: sprintf(phy[i].name, "KSZ8873 @ 0x%02x", active_phy_addr[i]); @@ -811,6 +837,8 @@ int davinci_emac_initialize(void) phy[i].get_link_speed = ksz8873_get_link_speed; phy[i].auto_negotiate = ksz8873_auto_negotiate; break; +#endif +#ifdef PHY_LXT972 case PHY_LXT972: sprintf(phy[i].name, "LXT972 @ 0x%02x", active_phy_addr[i]); @@ -819,6 +847,8 @@ int davinci_emac_initialize(void) phy[i].get_link_speed = lxt972_get_link_speed; phy[i].auto_negotiate = lxt972_auto_negotiate; break; +#endif +#ifdef PHY_DP83848 case PHY_DP83848: sprintf(phy[i].name, "DP83848 @ 0x%02x", active_phy_addr[i]); @@ -827,6 +857,8 @@ int davinci_emac_initialize(void) phy[i].get_link_speed = dp83848_get_link_speed; phy[i].auto_negotiate = dp83848_auto_negotiate; break; +#endif +#ifdef PHY_ET1011C case PHY_ET1011C: sprintf(phy[i].name, "ET1011C @ 0x%02x", active_phy_addr[i]); @@ -835,6 +867,7 @@ int davinci_emac_initialize(void) phy[i].get_link_speed = et1011c_get_link_speed; phy[i].auto_negotiate = gen_auto_negotiate; break; +#endif default: sprintf(phy[i].name, "GENERIC @ 0x%02x", active_phy_addr[i]); @@ -849,5 +882,14 @@ int davinci_emac_initialize(void) miiphy_register(phy[i].name, davinci_mii_phy_read, davinci_mii_phy_write); } + +#if defined(CONFIG_DRIVER_TI_EMAC_USE_RMII) && \ + defined(CONFIG_MACH_DAVINCI_DA850_EVM) && \ + !defined(CONFIG_DRIVER_TI_EMAC_RMII_NO_NEGOTIATE) + for (i = 0; i < num_phy; i++) { + if (phy[i].is_phy_connected(i)) + phy[i].auto_negotiate(i); + } +#endif return(1); }