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/*
* (C) Copyright 2013
* Texas Instruments Incorporated, <www.ti.com>
*
* Lokesh Vutla <lokeshvutla@ti.com>
*
* Based on previous work by:
* Aneesh V <aneesh@ti.com>
* Steve Sakoman <steve@sakoman.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <palmas.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
#include "mux_data.h"
#ifdef CONFIG_USB_EHCI
#include <usb.h>
#include <asm/arch/ehci.h>
#include <asm/ehci-omap.h>
#endif
#ifdef CONFIG_DRIVER_TI_CPSW
#include <cpsw.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
const struct omap_sysinfo sysinfo = {
"Board: DRA7xx\n"
};
/*
* Adjust I/O delays on the Tx control and data lines of each MAC port. This
* is a workaround in order to work properly with the DP83865 PHYs on the EVM.
* In 3COM RGMII mode this PHY applies it's own internal clock delay, so we
* essentially need to counteract the DRA7xx internal delay, and we do this
* by delaying the control and data lines. If not using this PHY, you probably
* don't need to do this stuff!
*/
static void dra7xx_adj_io_delay(const struct io_delay *io_dly)
{
int i = 0;
u32 reg_val;
u32 delta;
u32 coarse;
u32 fine;
writel(CFG_IO_DELAY_UNLOCK_KEY, CFG_IO_DELAY_LOCK);
while(io_dly[i].addr) {
writel(CFG_IO_DELAY_ACCESS_PATTERN & ~CFG_IO_DELAY_LOCK_MASK,
io_dly[i].addr);
delta = io_dly[i].dly;
reg_val = readl(io_dly[i].addr) & 0x3ff;
coarse = ((reg_val >> 5) & 0x1F) + ((delta >> 5) & 0x1F);
coarse = (coarse > 0x1F) ? (0x1F) : (coarse);
fine = (reg_val & 0x1F) + (delta & 0x1F);
fine = (fine > 0x1F) ? (0x1F) : (fine);
reg_val = CFG_IO_DELAY_ACCESS_PATTERN |
CFG_IO_DELAY_LOCK_MASK |
((coarse << 5) | (fine));
writel(reg_val, io_dly[i].addr);
i++;
}
writel(CFG_IO_DELAY_LOCK_KEY, CFG_IO_DELAY_LOCK);
}
/**
* @brief board_init
*
* @return 0
*/
int board_init(void)
{
gpmc_init();
gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */
return 0;
}
/**
* @brief misc_init_r - Configure EVM board specific configurations
* such as power configurations, ethernet initialization as phase2 of
* boot sequence
*
* @return 0
*/
int misc_init_r(void)
{
return 0;
}
static void do_set_mux32(u32 base,
struct pad_conf_entry const *array, int size)
{
int i;
struct pad_conf_entry *pad = (struct pad_conf_entry *)array;
for (i = 0; i < size; i++, pad++)
writel(pad->val, base + pad->offset);
}
void set_muxconf_regs_essential(void)
{
do_set_mux32((*ctrl)->control_padconf_core_base,
core_padconf_array_essential,
sizeof(core_padconf_array_essential) /
sizeof(struct pad_conf_entry));
}
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
int board_mmc_init(bd_t *bis)
{
omap_mmc_init(0, 0, 0, -1, -1);
omap_mmc_init(1, 0, 0, -1, -1);
return 0;
}
#endif
#ifdef CONFIG_DRIVER_TI_CPSW
/* Delay value to add to calibrated value */
#define RGMII0_TXCTL_DLY_VAL ((0x3 << 5) + 0x8)
#define RGMII0_TXD0_DLY_VAL ((0x3 << 5) + 0x8)
#define RGMII0_TXD1_DLY_VAL ((0x3 << 5) + 0x2)
#define RGMII0_TXD2_DLY_VAL ((0x4 << 5) + 0x0)
#define RGMII0_TXD3_DLY_VAL ((0x4 << 5) + 0x0)
#define VIN2A_D13_DLY_VAL ((0x3 << 5) + 0x8)
#define VIN2A_D17_DLY_VAL ((0x3 << 5) + 0x8)
#define VIN2A_D16_DLY_VAL ((0x3 << 5) + 0x2)
#define VIN2A_D15_DLY_VAL ((0x4 << 5) + 0x0)
#define VIN2A_D14_DLY_VAL ((0x4 << 5) + 0x0)
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_id = 0,
},
{
.slave_reg_ofs = 0x308,
.sliver_reg_ofs = 0xdc0,
.phy_id = 1,
},
};
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 ret;
uint8_t mac_addr[6];
uint32_t mac_hi, mac_lo;
uint32_t ctrl_val;
const struct io_delay io_dly[] = {
{CFG_RGMII0_TXCTL, RGMII0_TXCTL_DLY_VAL},
{CFG_RGMII0_TXD0, RGMII0_TXD0_DLY_VAL},
{CFG_RGMII0_TXD1, RGMII0_TXD1_DLY_VAL},
{CFG_RGMII0_TXD2, RGMII0_TXD2_DLY_VAL},
{CFG_RGMII0_TXD3, RGMII0_TXD3_DLY_VAL},
{CFG_VIN2A_D13, VIN2A_D13_DLY_VAL},
{CFG_VIN2A_D17, VIN2A_D17_DLY_VAL},
{CFG_VIN2A_D16, VIN2A_D16_DLY_VAL},
{CFG_VIN2A_D15, VIN2A_D15_DLY_VAL},
{CFG_VIN2A_D14, VIN2A_D14_DLY_VAL},
{0}
};
/* Adjust IO delay for RGMII tx path */
dra7xx_adj_io_delay(io_dly);
/* try reading mac address from efuse */
mac_lo = readl((*ctrl)->control_core_mac_id_0_lo);
mac_hi = readl((*ctrl)->control_core_mac_id_0_hi);
mac_addr[0] = mac_hi & 0xFF;
mac_addr[1] = (mac_hi & 0xFF00) >> 8;
mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
mac_addr[3] = mac_lo & 0xFF;
mac_addr[4] = (mac_lo & 0xFF00) >> 8;
mac_addr[5] = (mac_lo & 0xFF0000) >> 16;
if (!getenv("ethaddr")) {
printf("<ethaddr> not set. Validating first E-fuse MAC\n");
if (is_valid_ether_addr(mac_addr))
eth_setenv_enetaddr("ethaddr", mac_addr);
}
ctrl_val = readl((*ctrl)->control_core_control_io1) & (~0x33);
ctrl_val |= 0x22;
writel(ctrl_val, (*ctrl)->control_core_control_io1);
ret = cpsw_register(&cpsw_data);
if (ret < 0)
printf("Error %d registering CPSW switch\n", ret);
return ret;
}
#endif
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