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