mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
167 lines
3.9 KiB
C
167 lines
3.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2009-2011 Freescale Semiconductor, Inc.
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*/
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#include <common.h>
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#include <asm/types.h>
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#include <asm/io.h>
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#include <fsl_dtsec.h>
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#include <fsl_mdio.h>
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#include <phy.h>
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#include "fm.h"
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#define RCTRL_INIT (RCTRL_GRS | RCTRL_UPROM)
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#define TCTRL_INIT TCTRL_GTS
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#define MACCFG1_INIT MACCFG1_SOFT_RST
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#define MACCFG2_INIT (MACCFG2_PRE_LEN(0x7) | MACCFG2_LEN_CHECK | \
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MACCFG2_PAD_CRC | MACCFG2_FULL_DUPLEX | \
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MACCFG2_IF_MODE_NIBBLE)
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/* MAXFRM - maximum frame length register */
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#define MAXFRM_MASK 0x00003fff
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static void dtsec_init_mac(struct fsl_enet_mac *mac)
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{
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struct dtsec *regs = mac->base;
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/* soft reset */
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out_be32(®s->maccfg1, MACCFG1_SOFT_RST);
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udelay(1000);
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/* clear soft reset, Rx/Tx MAC disable */
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out_be32(®s->maccfg1, 0);
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/* graceful stop rx */
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out_be32(®s->rctrl, RCTRL_INIT);
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udelay(1000);
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/* graceful stop tx */
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out_be32(®s->tctrl, TCTRL_INIT);
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udelay(1000);
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/* disable all interrupts */
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out_be32(®s->imask, IMASK_MASK_ALL);
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/* clear all events */
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out_be32(®s->ievent, IEVENT_CLEAR_ALL);
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/* set the max Rx length */
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out_be32(®s->maxfrm, mac->max_rx_len & MAXFRM_MASK);
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/* set the ecntrl to reset value */
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out_be32(®s->ecntrl, ECNTRL_DEFAULT);
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/*
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* Rx length check, no strip CRC for Rx, pad and append CRC for Tx,
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* full duplex
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*/
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out_be32(®s->maccfg2, MACCFG2_INIT);
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}
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static void dtsec_enable_mac(struct fsl_enet_mac *mac)
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{
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struct dtsec *regs = mac->base;
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/* enable Rx/Tx MAC */
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setbits_be32(®s->maccfg1, MACCFG1_RXTX_EN);
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/* clear the graceful Rx stop */
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clrbits_be32(®s->rctrl, RCTRL_GRS);
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/* clear the graceful Tx stop */
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clrbits_be32(®s->tctrl, TCTRL_GTS);
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}
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static void dtsec_disable_mac(struct fsl_enet_mac *mac)
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{
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struct dtsec *regs = mac->base;
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/* graceful Rx stop */
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setbits_be32(®s->rctrl, RCTRL_GRS);
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/* graceful Tx stop */
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setbits_be32(®s->tctrl, TCTRL_GTS);
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/* disable Rx/Tx MAC */
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clrbits_be32(®s->maccfg1, MACCFG1_RXTX_EN);
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}
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static void dtsec_set_mac_addr(struct fsl_enet_mac *mac, u8 *mac_addr)
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{
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struct dtsec *regs = mac->base;
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u32 mac_addr1, mac_addr2;
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/*
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* if a station address of 0x12345678ABCD, perform a write to
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* MACSTNADDR1 of 0xCDAB7856, MACSTNADDR2 of 0x34120000
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*/
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mac_addr1 = (mac_addr[5] << 24) | (mac_addr[4] << 16) | \
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(mac_addr[3] << 8) | (mac_addr[2]);
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out_be32(®s->macstnaddr1, mac_addr1);
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mac_addr2 = ((mac_addr[1] << 24) | (mac_addr[0] << 16)) & 0xffff0000;
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out_be32(®s->macstnaddr2, mac_addr2);
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}
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static void dtsec_set_interface_mode(struct fsl_enet_mac *mac,
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phy_interface_t type, int speed)
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{
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struct dtsec *regs = mac->base;
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u32 ecntrl, maccfg2;
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/* clear all bits relative with interface mode */
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ecntrl = in_be32(®s->ecntrl);
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ecntrl &= ~(ECNTRL_TBIM | ECNTRL_GMIIM | ECNTRL_RPM |
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ECNTRL_R100M | ECNTRL_SGMIIM);
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maccfg2 = in_be32(®s->maccfg2);
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maccfg2 &= ~MACCFG2_IF_MODE_MASK;
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if (speed == SPEED_1000)
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maccfg2 |= MACCFG2_IF_MODE_BYTE;
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else
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maccfg2 |= MACCFG2_IF_MODE_NIBBLE;
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/* set interface mode */
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switch (type) {
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case PHY_INTERFACE_MODE_GMII:
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ecntrl |= ECNTRL_GMIIM;
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break;
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case PHY_INTERFACE_MODE_RGMII:
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ecntrl |= (ECNTRL_GMIIM | ECNTRL_RPM);
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if (speed == SPEED_100)
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ecntrl |= ECNTRL_R100M;
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break;
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case PHY_INTERFACE_MODE_RMII:
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if (speed == SPEED_100)
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ecntrl |= ECNTRL_R100M;
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break;
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case PHY_INTERFACE_MODE_SGMII:
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ecntrl |= (ECNTRL_SGMIIM | ECNTRL_TBIM);
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if (speed == SPEED_100)
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ecntrl |= ECNTRL_R100M;
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break;
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default:
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break;
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}
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out_be32(®s->ecntrl, ecntrl);
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out_be32(®s->maccfg2, maccfg2);
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}
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void init_dtsec(struct fsl_enet_mac *mac, void *base,
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void *phyregs, int max_rx_len)
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{
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mac->base = base;
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mac->phyregs = phyregs;
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mac->max_rx_len = max_rx_len;
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mac->init_mac = dtsec_init_mac;
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mac->enable_mac = dtsec_enable_mac;
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mac->disable_mac = dtsec_disable_mac;
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mac->set_mac_addr = dtsec_set_mac_addr;
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mac->set_if_mode = dtsec_set_interface_mode;
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}
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