board.c
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/*
* board.c
*
* Copyright (C) 2013 Lothar Felten <lothar.felten@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/cpu.h>
#include <asm/arch/hardware.h>
#include <asm/arch/ddr_defs.h>
#include <asm/arch/clock.h>
#include <asm/arch/sys_proto.h>
#include <i2c.h>
#include <phy.h>
#include <cpsw.h>
#include "board.h"
DECLARE_GLOBAL_DATA_PTR;
static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
#if defined(CONFIG_SPL_BUILD)
/* DDR3 RAM timings */
static const struct ddr_data ddr3_data = {
.datardsratio0 = MT41K128MJT187E_RD_DQS,
.datawdsratio0 = MT41K128MJT187E_WR_DQS,
.datafwsratio0 = MT41K128MJT187E_PHY_FIFO_WE,
.datawrsratio0 = MT41K128MJT187E_PHY_WR_DATA,
};
static const struct cmd_control ddr3_cmd_ctrl_data = {
.cmd0csratio = MT41K128MJT187E_RATIO,
.cmd0iclkout = MT41K128MJT187E_INVERT_CLKOUT,
.cmd1csratio = MT41K128MJT187E_RATIO,
.cmd1iclkout = MT41K128MJT187E_INVERT_CLKOUT,
.cmd2csratio = MT41K128MJT187E_RATIO,
.cmd2iclkout = MT41K128MJT187E_INVERT_CLKOUT,
};
static struct emif_regs ddr3_emif_reg_data = {
.sdram_config = MT41K128MJT187E_EMIF_SDCFG,
.ref_ctrl = MT41K128MJT187E_EMIF_SDREF,
.sdram_tim1 = MT41K128MJT187E_EMIF_TIM1,
.sdram_tim2 = MT41K128MJT187E_EMIF_TIM2,
.sdram_tim3 = MT41K128MJT187E_EMIF_TIM3,
.zq_config = MT41K128MJT187E_ZQ_CFG,
.emif_ddr_phy_ctlr_1 = MT41K128MJT187E_EMIF_READ_LATENCY |
PHY_EN_DYN_PWRDN,
};
const struct ctrl_ioregs ddr3_ioregs = {
.cm0ioctl = MT41K128MJT187E_IOCTRL_VALUE,
.cm1ioctl = MT41K128MJT187E_IOCTRL_VALUE,
.cm2ioctl = MT41K128MJT187E_IOCTRL_VALUE,
.dt0ioctl = MT41K128MJT187E_IOCTRL_VALUE,
.dt1ioctl = MT41K128MJT187E_IOCTRL_VALUE,
};
#ifdef CONFIG_SPL_OS_BOOT
int spl_start_uboot(void)
{
/* break into full u-boot on 'c' */
return serial_tstc() && serial_getc() == 'c';
}
#endif
#define OSC (V_OSCK/1000000)
const struct dpll_params dpll_ddr_266 = {
266, OSC-1, 1, -1, -1, -1, -1};
const struct dpll_params dpll_ddr_303 = {
303, OSC-1, 1, -1, -1, -1, -1};
const struct dpll_params dpll_ddr_400 = {
400, OSC-1, 1, -1, -1, -1, -1};
void am33xx_spl_board_init(void)
{
/*
* The pengwyn board uses the TPS650250 PMIC without I2C
* interface and will output the following fixed voltages:
* DCDC1=3V3 (IO) DCDC2=1V5 (DDR) DCDC3=1V26 (Vmpu)
* VLDO1=1V8 (IO) VLDO2=1V8(IO)
* Vcore=1V1 is fixed, generated by TPS62231
*/
/* Get the frequency */
dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
/* Set CORE Frequencies to OPP100 */
do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
/* 720MHz cpu, this might change on newer board revisions */
dpll_mpu_opp100.m = MPUPLL_M_720;
do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
}
const struct dpll_params *get_dpll_ddr_params(void)
{
/* future configs can return other clock settings */
return &dpll_ddr_303;
}
void set_uart_mux_conf(void)
{
enable_uart0_pin_mux();
}
void set_mux_conf_regs(void)
{
enable_board_pin_mux();
}
void sdram_init(void)
{
config_ddr(303, &ddr3_ioregs, &ddr3_data,
&ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
}
#endif /* if CONFIG_SPL_BUILD */
/*
* Basic board specific setup. Pinmux has been handled already.
*/
int board_init(void)
{
i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
gpmc_init();
return 0;
}
#ifdef CONFIG_DRIVER_TI_CPSW
static void cpsw_control(int enabled)
{
/* VTP can be added here */
return;
}
static struct cpsw_slave_data cpsw_slaves[] = {
{
.slave_reg_ofs = 0x208,
.sliver_reg_ofs = 0xd80,
.phy_addr = 1,
.phy_if = PHY_INTERFACE_MODE_MII,
},
};
static struct cpsw_platform_data cpsw_data = {
.mdio_base = CPSW_MDIO_BASE,
.cpsw_base = CPSW_BASE,
.mdio_div = 0xff,
.channels = 8,
.cpdma_reg_ofs = 0x800,
.slaves = 1,
.slave_data = cpsw_slaves,
.ale_reg_ofs = 0xd00,
.ale_entries = 1024,
.host_port_reg_ofs = 0x108,
.hw_stats_reg_ofs = 0x900,
.bd_ram_ofs = 0x2000,
.mac_control = (1 << 5),
.control = cpsw_control,
.host_port_num = 0,
.version = CPSW_CTRL_VERSION_2,
};
int board_eth_init(bd_t *bis)
{
int rv, n = 0;
uint8_t mac_addr[6];
uint32_t mac_hi, mac_lo;
if (!eth_getenv_enetaddr("ethaddr", mac_addr)) {
printf("<ethaddr> not set. Reading from E-fuse\n");
/* try reading mac address from efuse */
mac_lo = readl(&cdev->macid0l);
mac_hi = readl(&cdev->macid0h);
mac_addr[0] = mac_hi & 0xFF;
mac_addr[1] = (mac_hi & 0xFF00) >> 8;
mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
mac_addr[4] = mac_lo & 0xFF;
mac_addr[5] = (mac_lo & 0xFF00) >> 8;
if (is_valid_ethaddr(mac_addr))
eth_env_set_enetaddr("ethaddr", mac_addr);
else
return n;
}
writel(MII_MODE_ENABLE, &cdev->miisel);
rv = cpsw_register(&cpsw_data);
if (rv < 0)
printf("Error %d registering CPSW switch\n", rv);
else
n += rv;
return n;
}
#endif /* if CONFIG_DRIVER_TI_CPSW */