133 lines
3.9 KiB
C
133 lines
3.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Texas Instruments Ethernet Switch Driver
|
|
*
|
|
* Copyright (C) 2019 Texas Instruments
|
|
*/
|
|
|
|
#include <linux/if_ether.h>
|
|
#include <linux/if_vlan.h>
|
|
#include <linux/module.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/phy.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/skbuff.h>
|
|
|
|
#include "cpts.h"
|
|
#include "cpsw_ale.h"
|
|
#include "cpsw_priv.h"
|
|
#include "cpsw_sl.h"
|
|
#include "davinci_cpdma.h"
|
|
|
|
int cpsw_init_common(struct cpsw_common *cpsw, void __iomem *ss_regs,
|
|
int ale_ageout, phys_addr_t desc_mem_phys,
|
|
int descs_pool_size)
|
|
{
|
|
u32 slave_offset, sliver_offset, slave_size;
|
|
struct cpsw_ale_params ale_params;
|
|
struct cpsw_platform_data *data;
|
|
struct cpdma_params dma_params;
|
|
struct device *dev = cpsw->dev;
|
|
void __iomem *cpts_regs;
|
|
int ret = 0, i;
|
|
|
|
data = &cpsw->data;
|
|
cpsw->rx_ch_num = 1;
|
|
cpsw->tx_ch_num = 1;
|
|
|
|
cpsw->version = readl(&cpsw->regs->id_ver);
|
|
|
|
memset(&dma_params, 0, sizeof(dma_params));
|
|
memset(&ale_params, 0, sizeof(ale_params));
|
|
|
|
switch (cpsw->version) {
|
|
case CPSW_VERSION_1:
|
|
cpsw->host_port_regs = ss_regs + CPSW1_HOST_PORT_OFFSET;
|
|
cpts_regs = ss_regs + CPSW1_CPTS_OFFSET;
|
|
cpsw->hw_stats = ss_regs + CPSW1_HW_STATS;
|
|
dma_params.dmaregs = ss_regs + CPSW1_CPDMA_OFFSET;
|
|
dma_params.txhdp = ss_regs + CPSW1_STATERAM_OFFSET;
|
|
ale_params.ale_regs = ss_regs + CPSW1_ALE_OFFSET;
|
|
slave_offset = CPSW1_SLAVE_OFFSET;
|
|
slave_size = CPSW1_SLAVE_SIZE;
|
|
sliver_offset = CPSW1_SLIVER_OFFSET;
|
|
dma_params.desc_mem_phys = 0;
|
|
break;
|
|
case CPSW_VERSION_2:
|
|
case CPSW_VERSION_3:
|
|
case CPSW_VERSION_4:
|
|
cpsw->host_port_regs = ss_regs + CPSW2_HOST_PORT_OFFSET;
|
|
cpts_regs = ss_regs + CPSW2_CPTS_OFFSET;
|
|
cpsw->hw_stats = ss_regs + CPSW2_HW_STATS;
|
|
dma_params.dmaregs = ss_regs + CPSW2_CPDMA_OFFSET;
|
|
dma_params.txhdp = ss_regs + CPSW2_STATERAM_OFFSET;
|
|
ale_params.ale_regs = ss_regs + CPSW2_ALE_OFFSET;
|
|
slave_offset = CPSW2_SLAVE_OFFSET;
|
|
slave_size = CPSW2_SLAVE_SIZE;
|
|
sliver_offset = CPSW2_SLIVER_OFFSET;
|
|
dma_params.desc_mem_phys = desc_mem_phys;
|
|
break;
|
|
default:
|
|
dev_err(dev, "unknown version 0x%08x\n", cpsw->version);
|
|
return -ENODEV;
|
|
}
|
|
|
|
for (i = 0; i < cpsw->data.slaves; i++) {
|
|
struct cpsw_slave *slave = &cpsw->slaves[i];
|
|
void __iomem *regs = cpsw->regs;
|
|
|
|
slave->slave_num = i;
|
|
slave->data = &cpsw->data.slave_data[i];
|
|
slave->regs = regs + slave_offset;
|
|
slave->port_vlan = slave->data->dual_emac_res_vlan;
|
|
slave->mac_sl = cpsw_sl_get("cpsw", dev, regs + sliver_offset);
|
|
if (IS_ERR(slave->mac_sl))
|
|
return PTR_ERR(slave->mac_sl);
|
|
|
|
slave_offset += slave_size;
|
|
sliver_offset += SLIVER_SIZE;
|
|
}
|
|
|
|
ale_params.dev = dev;
|
|
ale_params.ale_ageout = ale_ageout;
|
|
ale_params.ale_entries = data->ale_entries;
|
|
ale_params.ale_ports = CPSW_ALE_PORTS_NUM;
|
|
|
|
cpsw->ale = cpsw_ale_create(&ale_params);
|
|
if (!cpsw->ale) {
|
|
dev_err(dev, "error initializing ale engine\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
dma_params.dev = dev;
|
|
dma_params.rxthresh = dma_params.dmaregs + CPDMA_RXTHRESH;
|
|
dma_params.rxfree = dma_params.dmaregs + CPDMA_RXFREE;
|
|
dma_params.rxhdp = dma_params.txhdp + CPDMA_RXHDP;
|
|
dma_params.txcp = dma_params.txhdp + CPDMA_TXCP;
|
|
dma_params.rxcp = dma_params.txhdp + CPDMA_RXCP;
|
|
|
|
dma_params.num_chan = data->channels;
|
|
dma_params.has_soft_reset = true;
|
|
dma_params.min_packet_size = CPSW_MIN_PACKET_SIZE;
|
|
dma_params.desc_mem_size = data->bd_ram_size;
|
|
dma_params.desc_align = 16;
|
|
dma_params.has_ext_regs = true;
|
|
dma_params.desc_hw_addr = dma_params.desc_mem_phys;
|
|
dma_params.bus_freq_mhz = cpsw->bus_freq_mhz;
|
|
dma_params.descs_pool_size = descs_pool_size;
|
|
|
|
cpsw->dma = cpdma_ctlr_create(&dma_params);
|
|
if (!cpsw->dma) {
|
|
dev_err(dev, "error initializing dma\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
cpsw->cpts = cpts_create(cpsw->dev, cpts_regs, cpsw->dev->of_node);
|
|
if (IS_ERR(cpsw->cpts)) {
|
|
ret = PTR_ERR(cpsw->cpts);
|
|
cpdma_ctlr_destroy(cpsw->dma);
|
|
}
|
|
|
|
return ret;
|
|
}
|