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
14 DECLARE_GLOBAL_DATA_PTR;
15
dram_init(void)16 int dram_init(void)
17 {
18 gd->ram_size = imx_ddr_size();
19
20 return 0;
21 }
22
ft_board_setup(void * blob,struct bd_info * bd)23 int 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
setup_fec(void)32 static 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
board_phy_config(struct phy_device * phydev)62 int 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
board_early_init_f(void)72 int board_early_init_f(void)
73 {
74 enable_qspi_clk(0);
75
76 return 0;
77 }
78
board_init(void)79 int 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
env_get_location(enum env_operation op,int prio)89 enum 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