mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-18 07:58:52 +09:00
![Yaniv Levinsky](/assets/img/avatar_default.png)
The function set_default_env() sets the hashtable flags for import_r(). Formally set_default_env() doesn't accept flags from its callers. In practice the caller can (un)set the H_INTERACTIVE flag, but it has to be done using the first character of the function's string argument. Other flags like H_FORCE can't be set by the caller. Change the function to accept flags argument. The benefits are: 1. The caller will have to explicitly set the H_INTERACTIVE flag, instead of un-setting it using a special char in a string. 2. Add the ability to propagate flags from the caller to himport(), especially the H_FORCE flag from do_env_default() in nvedit.c that currently gets ignored for "env default -a -f" commands. 3. Flags and messages will not be coupled together. A caller will be able to set flags without passing a string and vice versa. Please note: The propagation of H_FORCE from do_env_default() does not introduce any functional changes, because currently himport_r() is set to destroy the old environment regardless if H_FORCE flag is set or not. More changes are needed to utilize the propagation of H_FORCE. Signed-off-by: Yaniv Levinsky <yaniv.levinsky@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
274 lines
6.4 KiB
C
274 lines
6.4 KiB
C
// 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/iomux.h>
|
|
#include <asm/arch/mx6-pins.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
#include <asm/gpio.h>
|
|
#include <asm/mach-imx/iomux-v3.h>
|
|
#include <asm/io.h>
|
|
#include <common.h>
|
|
#include <environment.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#ifdef CONFIG_FEC_MXC
|
|
#include <miiphy.h>
|
|
|
|
#define MDIO_PAD_CTRL ( \
|
|
PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
|
|
PAD_CTL_DSE_40ohm \
|
|
)
|
|
|
|
#define ENET_PAD_CTRL_PU ( \
|
|
PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
|
|
PAD_CTL_DSE_40ohm \
|
|
)
|
|
|
|
#define ENET_PAD_CTRL_PD ( \
|
|
PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_MED | \
|
|
PAD_CTL_DSE_40ohm \
|
|
)
|
|
|
|
#define ENET_CLK_PAD_CTRL ( \
|
|
PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \
|
|
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST \
|
|
)
|
|
|
|
static iomux_v3_cfg_t const fec1_pads[] = {
|
|
MX6_PAD_GPIO1_IO06__ENET1_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL),
|
|
MX6_PAD_GPIO1_IO07__ENET1_MDC | MUX_PAD_CTRL(MDIO_PAD_CTRL),
|
|
MX6_PAD_ENET1_RX_ER__ENET1_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
|
|
MX6_PAD_ENET1_RX_EN__ENET1_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
|
|
MX6_PAD_ENET1_RX_DATA1__ENET1_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
|
|
MX6_PAD_ENET1_RX_DATA0__ENET1_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
|
|
MX6_PAD_ENET1_TX_DATA0__ENET1_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL_PU),
|
|
MX6_PAD_ENET1_TX_DATA1__ENET1_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL_PU),
|
|
MX6_PAD_ENET1_TX_EN__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL_PU),
|
|
/* PHY Int */
|
|
MX6_PAD_NAND_DQS__GPIO4_IO16 | MUX_PAD_CTRL(ENET_PAD_CTRL_PU),
|
|
/* PHY Reset */
|
|
MX6_PAD_NAND_DATA00__GPIO4_IO02 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
|
|
MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
|
|
};
|
|
|
|
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;
|
|
}
|
|
|
|
int board_eth_init(bd_t *bis)
|
|
{
|
|
struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
|
|
struct gpio_desc rst;
|
|
int ret;
|
|
|
|
/* 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);
|
|
|
|
ret = enable_fec_anatop_clock(0, ENET_50MHZ);
|
|
if (ret)
|
|
return ret;
|
|
|
|
enable_enet_clk(1);
|
|
|
|
imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
|
|
|
|
ret = dm_gpio_lookup_name("GPIO4_2", &rst);
|
|
if (ret) {
|
|
printf("Cannot get GPIO4_2\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = dm_gpio_request(&rst, "phy-rst");
|
|
if (ret) {
|
|
printf("Cannot request GPIO4_2\n");
|
|
return ret;
|
|
}
|
|
|
|
dm_gpio_set_dir_flags(&rst, GPIOD_IS_OUT);
|
|
dm_gpio_set_value(&rst, 0);
|
|
udelay(1000);
|
|
dm_gpio_set_value(&rst, 1);
|
|
|
|
return fecmxc_initialize(bis);
|
|
}
|
|
#endif /* CONFIG_FEC_MXC */
|
|
|
|
int board_init(void)
|
|
{
|
|
/* Address of boot parameters */
|
|
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
|
|
|
|
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) {
|
|
set_default_env(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,
|
|
};
|
|
|
|
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 */
|