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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2018 Armadeus Systems
*/
#include <asm/arch/clock.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/sys_proto.h>
#include <asm/io.h>
#include <common.h>
#include <env.h>
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_FEC_MXC
#include <miiphy.h>
int board_phy_config(struct phy_device *phydev)
{
phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190);
if (phydev->drv->config)
phydev->drv->config(phydev);
return 0;
}
static int setup_fec(void)
{
struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
/* Use 50M anatop loopback REF_CLK1 for ENET1,
* clear gpr1[13], set gpr1[17] */
clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
return enable_fec_anatop_clock(0, ENET_50MHZ);
}
#endif /* CONFIG_FEC_MXC */
int board_init(void)
{
/* Address of boot parameters */
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
#ifdef CONFIG_FEC_MXC
setup_fec();
#endif
return 0;
}
int __weak opos6ul_board_late_init(void)
{
return 0;
}
int board_late_init(void)
{
struct src *psrc = (struct src *)SRC_BASE_ADDR;
unsigned reg = readl(&psrc->sbmr2);
/* In bootstrap don't use the env vars */
if (((reg & 0x3000000) >> 24) == 0x1) {
env_set_default(NULL, 0);
env_set("preboot", "");
}
return opos6ul_board_late_init();
}
int dram_init(void)
{
gd->ram_size = imx_ddr_size();
return 0;
}
#ifdef CONFIG_SPL_BUILD
#include <asm/arch/mx6-ddr.h>
#include <linux/libfdt.h>
#include <spl.h>
static struct mx6ul_iomux_grp_regs mx6_grp_ioregs = {
.grp_addds = 0x00000030,
.grp_ddrmode_ctl = 0x00020000,
.grp_b0ds = 0x00000030,
.grp_ctlds = 0x00000030,
.grp_b1ds = 0x00000030,
.grp_ddrpke = 0x00000000,
.grp_ddrmode = 0x00020000,
.grp_ddr_type = 0x000c0000,
};
static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = {
.dram_dqm0 = 0x00000030,
.dram_dqm1 = 0x00000030,
.dram_ras = 0x00000030,
.dram_cas = 0x00000030,
.dram_odt0 = 0x00000030,
.dram_odt1 = 0x00000030,
.dram_sdba2 = 0x00000000,
.dram_sdclk_0 = 0x00000008,
.dram_sdqs0 = 0x00000038,
.dram_sdqs1 = 0x00000030,
.dram_reset = 0x00000030,
};
static struct mx6_mmdc_calibration mx6_mmcd_calib = {
.p0_mpwldectrl0 = 0x00070007,
.p0_mpdgctrl0 = 0x41490145,
.p0_mprddlctl = 0x40404546,
.p0_mpwrdlctl = 0x4040524D,
};
struct mx6_ddr_sysinfo ddr_sysinfo = {
.dsize = 0,
.cs_density = 20,
.ncs = 1,
.cs1_mirror = 0,
.rtt_wr = 2,
.rtt_nom = 1, /* RTT_Nom = RZQ/2 */
.walat = 1, /* Write additional latency */
.ralat = 5, /* Read additional latency */
.mif3_mode = 3, /* Command prediction working mode */
.bi_on = 1, /* Bank interleaving enabled */
.sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
.rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
.ddr_type = DDR_TYPE_DDR3,
.refsel = 1, /* Refresh cycles at 32KHz */
.refr = 7, /* 8 refreshes commands per refresh cycle */
};
static struct mx6_ddr3_cfg mem_ddr = {
.mem_speed = 800,
.density = 2,
.width = 16,
.banks = 8,
.rowaddr = 14,
.coladdr = 10,
.pagesz = 2,
.trcd = 1500,
.trcmin = 5250,
.trasmin = 3750,
};
void board_boot_order(u32 *spl_boot_list)
{
unsigned int bmode = readl(&src_base->sbmr2);
if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */
spl_boot_list[0] = BOOT_DEVICE_UART;
else
spl_boot_list[0] = spl_boot_device();
}
static void ccgr_init(void)
{
struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
writel(0xFFFFFFFF, &ccm->CCGR0);
writel(0xFFFFFFFF, &ccm->CCGR1);
writel(0xFFFFFFFF, &ccm->CCGR2);
writel(0xFFFFFFFF, &ccm->CCGR3);
writel(0xFFFFFFFF, &ccm->CCGR4);
writel(0xFFFFFFFF, &ccm->CCGR5);
writel(0xFFFFFFFF, &ccm->CCGR6);
writel(0xFFFFFFFF, &ccm->CCGR7);
}
static void spl_dram_init(void)
{
struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
struct fuse_bank *bank = &ocotp->bank[4];
struct fuse_bank4_regs *fuse =
(struct fuse_bank4_regs *)bank->fuse_regs;
int reg = readl(&fuse->gp1);
/* 512MB of RAM */
if (reg & 0x1) {
mem_ddr.density = 4;
mem_ddr.rowaddr = 15;
mem_ddr.trcd = 1375;
mem_ddr.trcmin = 4875;
mem_ddr.trasmin = 3500;
}
mx6ul_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs);
mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr);
}
void spl_board_init(void)
{
preloader_console_init();
}
void board_init_f(ulong dummy)
{
ccgr_init();
/* setup AIPS and disable watchdog */
arch_cpu_init();
/* setup GP timer */
timer_init();
/* DDR initialization */
spl_dram_init();
}
#endif /* CONFIG_SPL_BUILD */
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