1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2018 Armadeus Systems
7 #include <asm/arch/clock.h>
8 #include <asm/arch/crm_regs.h>
9 #include <asm/arch/imx-regs.h>
10 #include <asm/arch/sys_proto.h>
11 #include <asm/global_data.h>
16 DECLARE_GLOBAL_DATA_PTR;
21 int board_phy_config(struct phy_device *phydev)
23 phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190);
25 if (phydev->drv->config)
26 phydev->drv->config(phydev);
31 static int setup_fec(void)
33 struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
35 /* Use 50M anatop loopback REF_CLK1 for ENET1,
36 * clear gpr1[13], set gpr1[17] */
37 clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
38 IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
40 return enable_fec_anatop_clock(0, ENET_50MHZ);
42 #endif /* CONFIG_FEC_MXC */
46 /* Address of boot parameters */
47 gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
56 int __weak opos6ul_board_late_init(void)
61 int board_late_init(void)
63 struct src *psrc = (struct src *)SRC_BASE_ADDR;
64 unsigned reg = readl(&psrc->sbmr2);
66 /* In bootstrap don't use the env vars */
67 if (((reg & 0x3000000) >> 24) == 0x1) {
68 env_set_default(NULL, 0);
69 env_set("preboot", "");
72 return opos6ul_board_late_init();
77 gd->ram_size = imx_ddr_size();
82 #ifdef CONFIG_SPL_BUILD
83 #include <asm/arch/mx6-ddr.h>
84 #include <linux/libfdt.h>
87 static struct mx6ul_iomux_grp_regs mx6_grp_ioregs = {
88 .grp_addds = 0x00000030,
89 .grp_ddrmode_ctl = 0x00020000,
90 .grp_b0ds = 0x00000030,
91 .grp_ctlds = 0x00000030,
92 .grp_b1ds = 0x00000030,
93 .grp_ddrpke = 0x00000000,
94 .grp_ddrmode = 0x00020000,
95 .grp_ddr_type = 0x000c0000,
98 static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = {
99 .dram_dqm0 = 0x00000030,
100 .dram_dqm1 = 0x00000030,
101 .dram_ras = 0x00000030,
102 .dram_cas = 0x00000030,
103 .dram_odt0 = 0x00000030,
104 .dram_odt1 = 0x00000030,
105 .dram_sdba2 = 0x00000000,
106 .dram_sdclk_0 = 0x00000008,
107 .dram_sdqs0 = 0x00000038,
108 .dram_sdqs1 = 0x00000030,
109 .dram_reset = 0x00000030,
112 static struct mx6_mmdc_calibration mx6_mmcd_calib = {
113 .p0_mpwldectrl0 = 0x00070007,
114 .p0_mpdgctrl0 = 0x41490145,
115 .p0_mprddlctl = 0x40404546,
116 .p0_mpwrdlctl = 0x4040524D,
119 struct mx6_ddr_sysinfo ddr_sysinfo = {
125 .rtt_nom = 1, /* RTT_Nom = RZQ/2 */
126 .walat = 1, /* Write additional latency */
127 .ralat = 5, /* Read additional latency */
128 .mif3_mode = 3, /* Command prediction working mode */
129 .bi_on = 1, /* Bank interleaving enabled */
130 .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
131 .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
132 .ddr_type = DDR_TYPE_DDR3,
133 .refsel = 1, /* Refresh cycles at 32KHz */
134 .refr = 7, /* 8 refreshes commands per refresh cycle */
137 static struct mx6_ddr3_cfg mem_ddr = {
150 void board_boot_order(u32 *spl_boot_list)
152 unsigned int bmode = readl(&src_base->sbmr2);
154 if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */
155 spl_boot_list[0] = BOOT_DEVICE_UART;
157 spl_boot_list[0] = spl_boot_device();
160 static void ccgr_init(void)
162 struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
164 writel(0xFFFFFFFF, &ccm->CCGR0);
165 writel(0xFFFFFFFF, &ccm->CCGR1);
166 writel(0xFFFFFFFF, &ccm->CCGR2);
167 writel(0xFFFFFFFF, &ccm->CCGR3);
168 writel(0xFFFFFFFF, &ccm->CCGR4);
169 writel(0xFFFFFFFF, &ccm->CCGR5);
170 writel(0xFFFFFFFF, &ccm->CCGR6);
171 writel(0xFFFFFFFF, &ccm->CCGR7);
174 static void spl_dram_init(void)
176 struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
177 struct fuse_bank *bank = &ocotp->bank[4];
178 struct fuse_bank4_regs *fuse =
179 (struct fuse_bank4_regs *)bank->fuse_regs;
180 int reg = readl(&fuse->gp1);
185 mem_ddr.rowaddr = 15;
187 mem_ddr.trcmin = 4875;
188 mem_ddr.trasmin = 3500;
191 mx6ul_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs);
192 mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr);
195 void spl_board_init(void)
197 preloader_console_init();
200 void board_init_f(ulong dummy)
204 /* setup AIPS and disable watchdog */
210 /* DDR initialization */
213 #endif /* CONFIG_SPL_BUILD */