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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2020 Amit Singh Tomar <amittomer25@gmail.com>
*
* Actions DWMAC specific glue layer
*/
#include <common.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <dm.h>
#include <clk.h>
#include <phy.h>
#include <regmap.h>
#include <reset.h>
#include <syscon.h>
#include "designware.h"
#include <asm/arch-owl/regs_s700.h>
#include <linux/bitops.h>
/* pin control for MAC */
#define RMII_TXD01_MFP_CTL0 (0x0 << 16)
#define RMII_RXD01_MFP_CTL0 (0x0 << 8)
#define RMII_TXEN_TXER_MFP_CTL0 (0x0 << 13)
#define RMII_REF_CLK_MFP_CTL0 (0x0 << 6)
#define CLKO_25M_EN_MFP_CTL3 BIT(30)
DECLARE_GLOBAL_DATA_PTR;
static void dwmac_board_setup(void)
{
clrbits_le32(MFP_CTL0, (RMII_TXD01_MFP_CTL0 | RMII_RXD01_MFP_CTL0 |
RMII_TXEN_TXER_MFP_CTL0 | RMII_REF_CLK_MFP_CTL0));
setbits_le32(MFP_CTL3, CLKO_25M_EN_MFP_CTL3);
}
static int dwmac_s700_probe(struct udevice *dev)
{
dwmac_board_setup();
/* This is undocumented, phy interface select register */
writel(0x4, 0xe024c0a0);
return designware_eth_probe(dev);
}
static int dwmac_s700_of_to_plat(struct udevice *dev)
{
return designware_eth_of_to_plat(dev);
}
static const struct udevice_id dwmac_s700_ids[] = {
{.compatible = "actions,s700-ethernet"},
{ }
};
U_BOOT_DRIVER(dwmac_s700) = {
.name = "dwmac_s700",
.id = UCLASS_ETH,
.of_match = dwmac_s700_ids,
.of_to_plat = dwmac_s700_of_to_plat,
.probe = dwmac_s700_probe,
.ops = &designware_eth_ops,
.priv_auto = sizeof(struct dw_eth_dev),
.plat_auto = sizeof(struct eth_pdata),
.flags = DM_FLAG_ALLOC_PRIV_DMA,
};
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