diff options
Diffstat (limited to 'qemu/roms/u-boot/drivers/net/fm/memac.c')
| -rw-r--r-- | qemu/roms/u-boot/drivers/net/fm/memac.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/drivers/net/fm/memac.c b/qemu/roms/u-boot/drivers/net/fm/memac.c new file mode 100644 index 000000000..592a67f2a --- /dev/null +++ b/qemu/roms/u-boot/drivers/net/fm/memac.c @@ -0,0 +1,137 @@ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * Roy Zang <tie-fei.zang@freescale.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* MAXFRM - maximum frame length */ +#define MAXFRM_MASK 0x0000ffff + +#include <common.h> +#include <phy.h> +#include <asm/types.h> +#include <asm/io.h> +#include <asm/fsl_enet.h> +#include <asm/fsl_memac.h> + +#include "fm.h" + +static void memac_init_mac(struct fsl_enet_mac *mac) +{ + struct memac *regs = mac->base; + + /* mask all interrupt */ + out_be32(®s->imask, IMASK_MASK_ALL); + + /* clear all events */ + out_be32(®s->ievent, IEVENT_CLEAR_ALL); + + /* set the max receive length */ + out_be32(®s->maxfrm, mac->max_rx_len & MAXFRM_MASK); + + /* multicast frame reception for the hash entry disable */ + out_be32(®s->hashtable_ctrl, 0); +} + +static void memac_enable_mac(struct fsl_enet_mac *mac) +{ + struct memac *regs = mac->base; + + setbits_be32(®s->command_config, MEMAC_CMD_CFG_RXTX_EN); +} + +static void memac_disable_mac(struct fsl_enet_mac *mac) +{ + struct memac *regs = mac->base; + + clrbits_be32(®s->command_config, MEMAC_CMD_CFG_RXTX_EN); +} + +static void memac_set_mac_addr(struct fsl_enet_mac *mac, u8 *mac_addr) +{ + struct memac *regs = mac->base; + u32 mac_addr0, mac_addr1; + + /* + * if a station address of 0x12345678ABCD, perform a write to + * MAC_ADDR0 of 0x78563412, MAC_ADDR1 of 0x0000CDAB + */ + mac_addr0 = (mac_addr[3] << 24) | (mac_addr[2] << 16) | \ + (mac_addr[1] << 8) | (mac_addr[0]); + out_be32(®s->mac_addr_0, mac_addr0); + + mac_addr1 = ((mac_addr[5] << 8) | mac_addr[4]) & 0x0000ffff; + out_be32(®s->mac_addr_1, mac_addr1); +} + +static void memac_set_interface_mode(struct fsl_enet_mac *mac, + phy_interface_t type, int speed) +{ + /* Roy need more work here */ + + struct memac *regs = mac->base; + u32 if_mode, if_status; + + /* clear all bits relative with interface mode */ + if_mode = in_be32(®s->if_mode); + if_status = in_be32(®s->if_status); + + /* set interface mode */ + switch (type) { + case PHY_INTERFACE_MODE_GMII: + if_mode &= ~IF_MODE_MASK; + if_mode |= IF_MODE_GMII; + break; + case PHY_INTERFACE_MODE_RGMII: + if_mode |= (IF_MODE_GMII | IF_MODE_RG); + break; + case PHY_INTERFACE_MODE_RMII: + if_mode |= (IF_MODE_GMII | IF_MODE_RM); + break; + case PHY_INTERFACE_MODE_SGMII: + case PHY_INTERFACE_MODE_QSGMII: + if_mode &= ~IF_MODE_MASK; + if_mode |= (IF_MODE_GMII); + break; + default: + break; + } + /* Enable automatic speed selection */ + if_mode |= IF_MODE_EN_AUTO; + + if (type == PHY_INTERFACE_MODE_RGMII) { + if_mode &= ~IF_MODE_EN_AUTO; + if_mode &= ~IF_MODE_SETSP_MASK; + switch (speed) { + case SPEED_1000: + if_mode |= IF_MODE_SETSP_1000M; + break; + case SPEED_100: + if_mode |= IF_MODE_SETSP_100M; + break; + case SPEED_10: + if_mode |= IF_MODE_SETSP_10M; + default: + break; + } + } + + debug(" %s, if_mode = %x\n", __func__, if_mode); + debug(" %s, if_status = %x\n", __func__, if_status); + out_be32(®s->if_mode, if_mode); + return; +} + +void init_memac(struct fsl_enet_mac *mac, void *base, + void *phyregs, int max_rx_len) +{ + mac->base = base; + mac->phyregs = phyregs; + mac->max_rx_len = max_rx_len; + mac->init_mac = memac_init_mac; + mac->enable_mac = memac_enable_mac; + mac->disable_mac = memac_disable_mac; + mac->set_mac_addr = memac_set_mac_addr; + mac->set_if_mode = memac_set_interface_mode; +} |