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/*
* evm.c
*
* Copyright (C) 2013, Adeneo Embedded <www.adeneo-embedded.com>
* Antoine Tenart, <atenart@adeneo-embedded.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <environment.h>
#include <spl.h>
#include <netdev.h>
#include <asm/cache.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/cpu.h>
#include <asm/arch/ddr_defs.h>
#include <asm/arch/hardware.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/mem.h>
#include <asm/arch/mux.h>
DECLARE_GLOBAL_DATA_PTR;
int board_init(void)
{
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
#if defined(CONFIG_NAND)
gpmc_init();
#endif
return 0;
}
int board_eth_init(bd_t *bis)
{
uint8_t mac_addr[6];
uint32_t mac_hi, mac_lo;
struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
if (!eth_env_get_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
printf("Unable to read MAC address. Set <ethaddr>\n");
}
return davinci_emac_initialize();
}
#ifdef CONFIG_SPL_BUILD
static struct module_pin_mux mmc_pin_mux[] = {
{ OFFSET(pincntl157), PULLDOWN_EN | PULLUDDIS | MODE(0x0) },
{ OFFSET(pincntl158), PULLDOWN_EN | PULLUDEN | MODE(0x0) },
{ OFFSET(pincntl159), PULLUP_EN | PULLUDDIS | MODE(0x0) },
{ OFFSET(pincntl160), PULLUP_EN | PULLUDDIS | MODE(0x0) },
{ OFFSET(pincntl161), PULLUP_EN | PULLUDDIS | MODE(0x0) },
{ OFFSET(pincntl162), PULLUP_EN | PULLUDDIS | MODE(0x0) },
{ OFFSET(pincntl163), PULLUP_EN | PULLUDDIS | MODE(0x0) },
{ -1 },
};
void set_uart_mux_conf(void) {}
void set_mux_conf_regs(void)
{
configure_module_pin_mux(mmc_pin_mux);
}
/*
* EMIF Paramters. Refer the EMIF register documentation and the
* memory datasheet for details. This is for 796 MHz.
*/
#define EMIF_TIM1 0x1779C9FE
#define EMIF_TIM2 0x50608074
#define EMIF_TIM3 0x009F857F
#define EMIF_SDREF 0x10001841
#define EMIF_SDCFG 0x62A73832
#define EMIF_PHYCFG 0x00000110
static const struct emif_regs ddr3_emif_regs = {
.sdram_config = EMIF_SDCFG,
.ref_ctrl = EMIF_SDREF,
.sdram_tim1 = EMIF_TIM1,
.sdram_tim2 = EMIF_TIM2,
.sdram_tim3 = EMIF_TIM3,
.emif_ddr_phy_ctlr_1 = EMIF_PHYCFG,
};
static const struct cmd_control ddr3_ctrl = {
.cmd0csratio = 0x100,
.cmd0iclkout = 0x001,
.cmd1csratio = 0x100,
.cmd1iclkout = 0x001,
.cmd2csratio = 0x100,
.cmd2iclkout = 0x001,
};
/* These values are obtained from the CCS app */
#define RD_DQS_GATE (0x1B3)
#define RD_DQS (0x35)
#define WR_DQS (0x93)
static struct ddr_data ddr3_data = {
.datardsratio0 = ((RD_DQS<<10) | (RD_DQS<<0)),
.datawdsratio0 = ((WR_DQS<<10) | (WR_DQS<<0)),
.datawiratio0 = ((0x20<<10) | 0x20<<0),
.datagiratio0 = ((0x20<<10) | 0x20<<0),
.datafwsratio0 = ((RD_DQS_GATE<<10) | (RD_DQS_GATE<<0)),
.datawrsratio0 = (((WR_DQS+0x40)<<10) | ((WR_DQS+0x40)<<0)),
};
static const struct dmm_lisa_map_regs evm_lisa_map_regs = {
.dmm_lisa_map_0 = 0x00000000,
.dmm_lisa_map_1 = 0x00000000,
.dmm_lisa_map_2 = 0x80640300,
.dmm_lisa_map_3 = 0xC0640320,
};
void sdram_init(void)
{
/*
* Pass in our DDR3 config information and that we have 2 EMIFs to
* configure.
*/
config_ddr(&ddr3_data, &ddr3_ctrl, &ddr3_emif_regs,
&evm_lisa_map_regs, 2);
}
#endif /* CONFIG_SPL_BUILD */
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