1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (C) 2018 Kontron Electronics GmbH
4 */
5
6#include <asm/arch/clock.h>
7#include <asm/arch/sys_proto.h>
8#include <asm/global_data.h>
9#include <env_internal.h>
10#include <fdt_support.h>
11#include <phy.h>
12#include <sl-mx6ul-common.h>
13
14DECLARE_GLOBAL_DATA_PTR;
15
16int dram_init(void)
17{
18	gd->ram_size = imx_ddr_size();
19
20	return 0;
21}
22
23int ft_board_setup(void *blob, struct bd_info *bd)
24{
25	/*
26	 * Overwrite the memory size in the devicetree that is
27	 * passed to the kernel with the actual size detected.
28	 */
29	return fdt_fixup_memory(blob, PHYS_SDRAM, gd->ram_size);
30}
31
32static int setup_fec(void)
33{
34	struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
35	int ret;
36
37	/*
38	 * Use 50M anatop loopback REF_CLK1 for ENET1,
39	 * clear gpr1[13], set gpr1[17].
40	 */
41	clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
42			IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
43
44	/*
45	 * Use 50M anatop loopback REF_CLK2 for ENET2,
46	 * clear gpr1[14], set gpr1[18].
47	 */
48	clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK,
49			IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
50
51	ret = enable_fec_anatop_clock(0, ENET_50MHZ);
52	if (ret)
53		return ret;
54
55	ret = enable_fec_anatop_clock(1, ENET_50MHZ);
56	if (ret)
57		return ret;
58
59	return 0;
60}
61
62int board_phy_config(struct phy_device *phydev)
63{
64	phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190);
65
66	if (phydev->drv->config)
67		phydev->drv->config(phydev);
68
69	return 0;
70}
71
72int board_early_init_f(void)
73{
74	enable_qspi_clk(0);
75
76	return 0;
77}
78
79int board_init(void)
80{
81	/* Address of boot parameters */
82	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
83
84	setup_fec();
85
86	return 0;
87}
88
89enum env_location env_get_location(enum env_operation op, int prio)
90{
91	if (prio)
92		return ENVL_UNKNOWN;
93
94	if (sl_mx6ul_is_spi_nor_boot() && CONFIG_IS_ENABLED(ENV_IS_IN_SPI_FLASH))
95		return ENVL_SPI_FLASH;
96	else if (CONFIG_IS_ENABLED(ENV_IS_IN_MMC))
97		return ENVL_MMC;
98
99	return ENVL_NOWHERE;
100}
101