diff options
author | Eugen Hristev <eugen.hristev@microchip.com> | 2021-08-25 13:28:28 +0300 |
---|---|---|
committer | Eugen Hristev <eugen.hristev@microchip.com> | 2021-09-21 10:08:24 +0300 |
commit | 0c66872f99c61a4ffaea739ced75c8448f0e0d5d (patch) | |
tree | b4a778861c28a30c4e6a4fd9c9f0f96747ac210c /drivers/net | |
parent | a6bbb8b596c3ab88171dd419a6ee61129db3c787 (diff) | |
download | u-boot-0c66872f99c61a4ffaea739ced75c8448f0e0d5d.tar.xz |
net: remove unused CONFIG_DRIVER_AT91EMAC_*
AT91EMAC driver is unused, thus removing.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/Makefile | 1 | ||||
-rw-r--r-- | drivers/net/at91_emac.c | 519 |
2 files changed, 0 insertions, 520 deletions
diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 96c061aafd..e4078d15a9 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -11,7 +11,6 @@ obj-$(CONFIG_ARMADA100_FEC) += armada100_fec.o obj-$(CONFIG_BCM6348_ETH) += bcm6348-eth.o obj-$(CONFIG_BCM6368_ETH) += bcm6368-eth.o obj-$(CONFIG_BCMGENET) += bcmgenet.o -obj-$(CONFIG_DRIVER_AT91EMAC) += at91_emac.o obj-$(CONFIG_DRIVER_AX88180) += ax88180.o obj-$(CONFIG_BCM_SF2_ETH) += bcm-sf2-eth.o obj-$(CONFIG_BCM_SF2_ETH_GMAC) += bcm-sf2-eth-gmac.o diff --git a/drivers/net/at91_emac.c b/drivers/net/at91_emac.c deleted file mode 100644 index e40b94ad89..0000000000 --- a/drivers/net/at91_emac.c +++ /dev/null @@ -1,519 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright (C) 2009 BuS Elektronik GmbH & Co. KG - * Jens Scharsig (esw@bus-elektronik.de) - * - * (C) Copyright 2003 - * Author : Hamid Ikdoumi (Atmel) - */ - -#include <common.h> -#include <log.h> -#include <asm/io.h> -#include <asm/arch/hardware.h> -#include <asm/arch/at91_emac.h> -#include <asm/arch/clk.h> -#include <asm/arch/at91_pio.h> -#include <net.h> -#include <netdev.h> -#include <malloc.h> -#include <miiphy.h> -#include <linux/delay.h> -#include <linux/mii.h> - -#undef MII_DEBUG -#undef ET_DEBUG - -#if (CONFIG_SYS_RX_ETH_BUFFER > 1024) -#error AT91 EMAC supports max 1024 RX buffers. \ - Please decrease the CONFIG_SYS_RX_ETH_BUFFER value -#endif - -#ifndef CONFIG_DRIVER_AT91EMAC_PHYADDR -#define CONFIG_DRIVER_AT91EMAC_PHYADDR 0 -#endif - -/* MDIO clock must not exceed 2.5 MHz, so enable MCK divider */ -#if (AT91C_MASTER_CLOCK > 80000000) - #define HCLK_DIV AT91_EMAC_CFG_MCLK_64 -#elif (AT91C_MASTER_CLOCK > 40000000) - #define HCLK_DIV AT91_EMAC_CFG_MCLK_32 -#elif (AT91C_MASTER_CLOCK > 20000000) - #define HCLK_DIV AT91_EMAC_CFG_MCLK_16 -#else - #define HCLK_DIV AT91_EMAC_CFG_MCLK_8 -#endif - -#ifdef ET_DEBUG -#define DEBUG_AT91EMAC 1 -#else -#define DEBUG_AT91EMAC 0 -#endif - -#ifdef MII_DEBUG -#define DEBUG_AT91PHY 1 -#else -#define DEBUG_AT91PHY 0 -#endif - -#ifndef CONFIG_DRIVER_AT91EMAC_QUIET -#define VERBOSEP 1 -#else -#define VERBOSEP 0 -#endif - -#define RBF_ADDR 0xfffffffc -#define RBF_OWNER (1<<0) -#define RBF_WRAP (1<<1) -#define RBF_BROADCAST (1<<31) -#define RBF_MULTICAST (1<<30) -#define RBF_UNICAST (1<<29) -#define RBF_EXTERNAL (1<<28) -#define RBF_UNKNOWN (1<<27) -#define RBF_SIZE 0x07ff -#define RBF_LOCAL4 (1<<26) -#define RBF_LOCAL3 (1<<25) -#define RBF_LOCAL2 (1<<24) -#define RBF_LOCAL1 (1<<23) - -#define RBF_FRAMEMAX CONFIG_SYS_RX_ETH_BUFFER -#define RBF_FRAMELEN 0x600 - -typedef struct { - unsigned long addr, size; -} rbf_t; - -typedef struct { - rbf_t rbfdt[RBF_FRAMEMAX]; - unsigned long rbindex; -} emac_device; - -void at91emac_EnableMDIO(at91_emac_t *at91mac) -{ - /* Mac CTRL reg set for MDIO enable */ - writel(readl(&at91mac->ctl) | AT91_EMAC_CTL_MPE, &at91mac->ctl); -} - -void at91emac_DisableMDIO(at91_emac_t *at91mac) -{ - /* Mac CTRL reg set for MDIO disable */ - writel(readl(&at91mac->ctl) & ~AT91_EMAC_CTL_MPE, &at91mac->ctl); -} - -int at91emac_read(at91_emac_t *at91mac, unsigned char addr, - unsigned char reg, unsigned short *value) -{ - unsigned long netstat; - at91emac_EnableMDIO(at91mac); - - writel(AT91_EMAC_MAN_HIGH | AT91_EMAC_MAN_RW_R | - AT91_EMAC_MAN_REGA(reg) | AT91_EMAC_MAN_CODE_802_3 | - AT91_EMAC_MAN_PHYA(addr), - &at91mac->man); - - do { - netstat = readl(&at91mac->sr); - debug_cond(DEBUG_AT91PHY, "poll SR %08lx\n", netstat); - } while (!(netstat & AT91_EMAC_SR_IDLE)); - - *value = readl(&at91mac->man) & AT91_EMAC_MAN_DATA_MASK; - - at91emac_DisableMDIO(at91mac); - - debug_cond(DEBUG_AT91PHY, - "AT91PHY read %p REG(%d)=%x\n", at91mac, reg, *value); - - return 0; -} - -int at91emac_write(at91_emac_t *at91mac, unsigned char addr, - unsigned char reg, unsigned short value) -{ - unsigned long netstat; - debug_cond(DEBUG_AT91PHY, - "AT91PHY write %p REG(%d)=%p\n", at91mac, reg, &value); - - at91emac_EnableMDIO(at91mac); - - writel(AT91_EMAC_MAN_HIGH | AT91_EMAC_MAN_RW_W | - AT91_EMAC_MAN_REGA(reg) | AT91_EMAC_MAN_CODE_802_3 | - AT91_EMAC_MAN_PHYA(addr) | (value & AT91_EMAC_MAN_DATA_MASK), - &at91mac->man); - - do { - netstat = readl(&at91mac->sr); - debug_cond(DEBUG_AT91PHY, "poll SR %08lx\n", netstat); - } while (!(netstat & AT91_EMAC_SR_IDLE)); - - at91emac_DisableMDIO(at91mac); - - return 0; -} - -#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) - -at91_emac_t *get_emacbase_by_name(const char *devname) -{ - struct eth_device *netdev; - - netdev = eth_get_dev_by_name(devname); - return (at91_emac_t *) netdev->iobase; -} - -int at91emac_mii_read(struct mii_dev *bus, int addr, int devad, int reg) -{ - unsigned short value = 0; - at91_emac_t *emac; - - emac = get_emacbase_by_name(bus->name); - at91emac_read(emac , addr, reg, &value); - return value; -} - - -int at91emac_mii_write(struct mii_dev *bus, int addr, int devad, int reg, - u16 value) -{ - at91_emac_t *emac; - - emac = get_emacbase_by_name(bus->name); - at91emac_write(emac, addr, reg, value); - return 0; -} - -#endif - -static int at91emac_phy_reset(struct eth_device *netdev) -{ - int i; - u16 status, adv; - at91_emac_t *emac; - - emac = (at91_emac_t *) netdev->iobase; - - adv = ADVERTISE_CSMA | ADVERTISE_ALL; - at91emac_write(emac, CONFIG_DRIVER_AT91EMAC_PHYADDR, - MII_ADVERTISE, adv); - debug_cond(VERBOSEP, "%s: Starting autonegotiation...\n", netdev->name); - at91emac_write(emac, CONFIG_DRIVER_AT91EMAC_PHYADDR, MII_BMCR, - (BMCR_ANENABLE | BMCR_ANRESTART)); - - for (i = 0; i < 30000; i++) { - at91emac_read(emac, CONFIG_DRIVER_AT91EMAC_PHYADDR, - MII_BMSR, &status); - if (status & BMSR_ANEGCOMPLETE) - break; - udelay(100); - } - - if (status & BMSR_ANEGCOMPLETE) { - debug_cond(VERBOSEP, - "%s: Autonegotiation complete\n", netdev->name); - } else { - printf("%s: Autonegotiation timed out (status=0x%04x)\n", - netdev->name, status); - return -1; - } - return 0; -} - -static int at91emac_phy_init(struct eth_device *netdev) -{ - u16 phy_id, status, adv, lpa; - int media, speed, duplex; - int i; - at91_emac_t *emac; - - emac = (at91_emac_t *) netdev->iobase; - - /* Check if the PHY is up to snuff... */ - at91emac_read(emac, CONFIG_DRIVER_AT91EMAC_PHYADDR, - MII_PHYSID1, &phy_id); - if (phy_id == 0xffff) { - printf("%s: No PHY present\n", netdev->name); - return -1; - } - - at91emac_read(emac, CONFIG_DRIVER_AT91EMAC_PHYADDR, - MII_BMSR, &status); - - if (!(status & BMSR_LSTATUS)) { - /* Try to re-negotiate if we don't have link already. */ - if (at91emac_phy_reset(netdev)) - return -2; - - for (i = 0; i < 100000 / 100; i++) { - at91emac_read(emac, CONFIG_DRIVER_AT91EMAC_PHYADDR, - MII_BMSR, &status); - if (status & BMSR_LSTATUS) - break; - udelay(100); - } - } - if (!(status & BMSR_LSTATUS)) { - debug_cond(VERBOSEP, "%s: link down\n", netdev->name); - return -3; - } else { - at91emac_read(emac, CONFIG_DRIVER_AT91EMAC_PHYADDR, - MII_ADVERTISE, &adv); - at91emac_read(emac, CONFIG_DRIVER_AT91EMAC_PHYADDR, - MII_LPA, &lpa); - media = mii_nway_result(lpa & adv); - speed = (media & (ADVERTISE_100FULL | ADVERTISE_100HALF) - ? 1 : 0); - duplex = (media & ADVERTISE_FULL) ? 1 : 0; - debug_cond(VERBOSEP, "%s: link up, %sMbps %s-duplex\n", - netdev->name, - speed ? "100" : "10", - duplex ? "full" : "half"); - } - return 0; -} - -int at91emac_UpdateLinkSpeed(at91_emac_t *emac) -{ - unsigned short stat1; - - at91emac_read(emac, CONFIG_DRIVER_AT91EMAC_PHYADDR, MII_BMSR, &stat1); - - if (!(stat1 & BMSR_LSTATUS)) /* link status up? */ - return -1; - - if (stat1 & BMSR_100FULL) { - /*set Emac for 100BaseTX and Full Duplex */ - writel(readl(&emac->cfg) | - AT91_EMAC_CFG_SPD | AT91_EMAC_CFG_FD, - &emac->cfg); - return 0; - } - - if (stat1 & BMSR_10FULL) { - /*set MII for 10BaseT and Full Duplex */ - writel((readl(&emac->cfg) & - ~(AT91_EMAC_CFG_SPD | AT91_EMAC_CFG_FD) - ) | AT91_EMAC_CFG_FD, - &emac->cfg); - return 0; - } - - if (stat1 & BMSR_100HALF) { - /*set MII for 100BaseTX and Half Duplex */ - writel((readl(&emac->cfg) & - ~(AT91_EMAC_CFG_SPD | AT91_EMAC_CFG_FD) - ) | AT91_EMAC_CFG_SPD, - &emac->cfg); - return 0; - } - - if (stat1 & BMSR_10HALF) { - /*set MII for 10BaseT and Half Duplex */ - writel((readl(&emac->cfg) & - ~(AT91_EMAC_CFG_SPD | AT91_EMAC_CFG_FD)), - &emac->cfg); - return 0; - } - return 0; -} - -static int at91emac_init(struct eth_device *netdev, struct bd_info *bd) -{ - int i; - u32 value; - emac_device *dev; - at91_emac_t *emac; - at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIO; - - emac = (at91_emac_t *) netdev->iobase; - dev = (emac_device *) netdev->priv; - - /* PIO Disable Register */ - value = ATMEL_PMX_AA_EMDIO | ATMEL_PMX_AA_EMDC | - ATMEL_PMX_AA_ERXER | ATMEL_PMX_AA_ERX1 | - ATMEL_PMX_AA_ERX0 | ATMEL_PMX_AA_ECRS | - ATMEL_PMX_AA_ETX1 | ATMEL_PMX_AA_ETX0 | - ATMEL_PMX_AA_ETXEN | ATMEL_PMX_AA_EREFCK; - - writel(value, &pio->pioa.pdr); - writel(value, &pio->pioa.mux.pio2.asr); - -#ifdef CONFIG_RMII - value = ATMEL_PMX_BA_ERXCK; -#else - value = ATMEL_PMX_BA_ERXCK | ATMEL_PMX_BA_ECOL | - ATMEL_PMX_BA_ERXDV | ATMEL_PMX_BA_ERX3 | - ATMEL_PMX_BA_ERX2 | ATMEL_PMX_BA_ETXER | - ATMEL_PMX_BA_ETX3 | ATMEL_PMX_BA_ETX2; -#endif - writel(value, &pio->piob.pdr); - writel(value, &pio->piob.mux.pio2.bsr); - - at91_periph_clk_enable(ATMEL_ID_EMAC); - - writel(readl(&emac->ctl) | AT91_EMAC_CTL_CSR, &emac->ctl); - - /* Init Ethernet buffers */ - for (i = 0; i < RBF_FRAMEMAX; i++) { - dev->rbfdt[i].addr = (unsigned long) net_rx_packets[i]; - dev->rbfdt[i].size = 0; - } - dev->rbfdt[RBF_FRAMEMAX - 1].addr |= RBF_WRAP; - dev->rbindex = 0; - writel((u32) &(dev->rbfdt[0]), &emac->rbqp); - - writel(readl(&emac->rsr) & - ~(AT91_EMAC_RSR_OVR | AT91_EMAC_RSR_REC | AT91_EMAC_RSR_BNA), - &emac->rsr); - - value = AT91_EMAC_CFG_CAF | AT91_EMAC_CFG_NBC | - HCLK_DIV; -#ifdef CONFIG_RMII - value |= AT91_EMAC_CFG_RMII; -#endif - writel(value, &emac->cfg); - - writel(readl(&emac->ctl) | AT91_EMAC_CTL_TE | AT91_EMAC_CTL_RE, - &emac->ctl); - - if (!at91emac_phy_init(netdev)) { - at91emac_UpdateLinkSpeed(emac); - return 0; - } - return -1; -} - -static void at91emac_halt(struct eth_device *netdev) -{ - at91_emac_t *emac; - - emac = (at91_emac_t *) netdev->iobase; - writel(readl(&emac->ctl) & ~(AT91_EMAC_CTL_TE | AT91_EMAC_CTL_RE), - &emac->ctl); - debug_cond(DEBUG_AT91EMAC, "halt MAC\n"); -} - -static int at91emac_send(struct eth_device *netdev, void *packet, int length) -{ - at91_emac_t *emac; - - emac = (at91_emac_t *) netdev->iobase; - - while (!(readl(&emac->tsr) & AT91_EMAC_TSR_BNQ)) - ; - writel((u32) packet, &emac->tar); - writel(AT91_EMAC_TCR_LEN(length), &emac->tcr); - while (AT91_EMAC_TCR_LEN(readl(&emac->tcr))) - ; - debug_cond(DEBUG_AT91EMAC, "Send %d\n", length); - writel(readl(&emac->tsr) | AT91_EMAC_TSR_COMP, &emac->tsr); - return 0; -} - -static int at91emac_recv(struct eth_device *netdev) -{ - emac_device *dev; - at91_emac_t *emac; - rbf_t *rbfp; - int size; - - emac = (at91_emac_t *) netdev->iobase; - dev = (emac_device *) netdev->priv; - - rbfp = &dev->rbfdt[dev->rbindex]; - while (rbfp->addr & RBF_OWNER) { - size = rbfp->size & RBF_SIZE; - net_process_received_packet(net_rx_packets[dev->rbindex], size); - - debug_cond(DEBUG_AT91EMAC, "Recv[%ld]: %d bytes @ %lx\n", - dev->rbindex, size, rbfp->addr); - - rbfp->addr &= ~RBF_OWNER; - rbfp->size = 0; - if (dev->rbindex < (RBF_FRAMEMAX-1)) - dev->rbindex++; - else - dev->rbindex = 0; - - rbfp = &(dev->rbfdt[dev->rbindex]); - if (!(rbfp->addr & RBF_OWNER)) - writel(readl(&emac->rsr) | AT91_EMAC_RSR_REC, - &emac->rsr); - } - - if (readl(&emac->isr) & AT91_EMAC_IxR_RBNA) { - /* EMAC silicon bug 41.3.1 workaround 1 */ - writel(readl(&emac->ctl) & ~AT91_EMAC_CTL_RE, &emac->ctl); - writel(readl(&emac->ctl) | AT91_EMAC_CTL_RE, &emac->ctl); - dev->rbindex = 0; - printf("%s: reset receiver (EMAC dead lock bug)\n", - netdev->name); - } - return 0; -} - -static int at91emac_write_hwaddr(struct eth_device *netdev) -{ - at91_emac_t *emac; - emac = (at91_emac_t *) netdev->iobase; - - at91_periph_clk_enable(ATMEL_ID_EMAC); - - debug_cond(DEBUG_AT91EMAC, - "init MAC-ADDR %02x:%02x:%02x:%02x:%02x:%02x\n", - netdev->enetaddr[5], netdev->enetaddr[4], netdev->enetaddr[3], - netdev->enetaddr[2], netdev->enetaddr[1], netdev->enetaddr[0]); - writel( (netdev->enetaddr[0] | netdev->enetaddr[1] << 8 | - netdev->enetaddr[2] << 16 | netdev->enetaddr[3] << 24), - &emac->sa2l); - writel((netdev->enetaddr[4] | netdev->enetaddr[5] << 8), &emac->sa2h); - debug_cond(DEBUG_AT91EMAC, "init MAC-ADDR %x%x\n", - readl(&emac->sa2h), readl(&emac->sa2l)); - return 0; -} - -int at91emac_register(struct bd_info *bis, unsigned long iobase) -{ - emac_device *emac; - emac_device *emacfix; - struct eth_device *dev; - - if (iobase == 0) - iobase = ATMEL_BASE_EMAC; - emac = malloc(sizeof(*emac)+512); - if (emac == NULL) - return -1; - dev = malloc(sizeof(*dev)); - if (dev == NULL) { - free(emac); - return -1; - } - /* alignment as per Errata (64 bytes) is insufficient! */ - emacfix = (emac_device *) (((unsigned long) emac + 0x1ff) & 0xFFFFFE00); - memset(emacfix, 0, sizeof(emac_device)); - - memset(dev, 0, sizeof(*dev)); - strcpy(dev->name, "emac"); - dev->iobase = iobase; - dev->priv = emacfix; - dev->init = at91emac_init; - dev->halt = at91emac_halt; - dev->send = at91emac_send; - dev->recv = at91emac_recv; - dev->write_hwaddr = at91emac_write_hwaddr; - - eth_register(dev); - -#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) - int retval; - struct mii_dev *mdiodev = mdio_alloc(); - if (!mdiodev) - return -ENOMEM; - strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN); - mdiodev->read = at91emac_mii_read; - mdiodev->write = at91emac_mii_write; - - retval = mdio_register(mdiodev); - if (retval < 0) - return retval; -#endif - return 1; -} |