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u-boot/board/vscom/baltos/board.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

493 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* board.c
*
* Board functions for TI AM335X based boards
*
* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
*/
#include <common.h>
#include <errno.h>
#include <linux/libfdt.h>
#include <spl.h>
#include <asm/arch/cpu.h>
#include <asm/arch/hardware.h>
#include <asm/arch/omap.h>
#include <asm/arch/ddr_defs.h>
#include <asm/arch/clock.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mem.h>
#include <asm/arch/mux.h>
#include <asm/io.h>
#include <asm/emif.h>
#include <asm/gpio.h>
#include <i2c.h>
#include <miiphy.h>
#include <cpsw.h>
#include <power/tps65217.h>
#include <power/tps65910.h>
#include <environment.h>
#include <watchdog.h>
#include "board.h"
DECLARE_GLOBAL_DATA_PTR;
/* GPIO that controls power to DDR on EVM-SK */
#define GPIO_DDR_VTT_EN 7
#define DIP_S1 44
#define MPCIE_SW 100
static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
static int baltos_set_console(void)
{
int val, i, dips = 0;
char buf[7];
for (i = 0; i < 4; i++) {
sprintf(buf, "dip_s%d", i + 1);
if (gpio_request(DIP_S1 + i, buf)) {
printf("failed to export GPIO %d\n", DIP_S1 + i);
return 0;
}
if (gpio_direction_input(DIP_S1 + i)) {
printf("failed to set GPIO %d direction\n", DIP_S1 + i);
return 0;
}
val = gpio_get_value(DIP_S1 + i);
dips |= val << i;
}
printf("DIPs: 0x%1x\n", (~dips) & 0xf);
if ((dips & 0xf) == 0xe)
env_set("console", "ttyUSB0,115200n8");
return 0;
}
static int read_eeprom(BSP_VS_HWPARAM *header)
{
i2c_set_bus_num(1);
/* Check if baseboard eeprom is available */
if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
puts("Could not probe the EEPROM; something fundamentally "
"wrong on the I2C bus.\n");
return -ENODEV;
}
/* read the eeprom using i2c */
if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header,
sizeof(BSP_VS_HWPARAM))) {
puts("Could not read the EEPROM; something fundamentally"
" wrong on the I2C bus.\n");
return -EIO;
}
if (header->Magic != 0xDEADBEEF) {
printf("Incorrect magic number (0x%x) in EEPROM\n",
header->Magic);
/* fill default values */
header->SystemId = 211;
header->MAC1[0] = 0x00;
header->MAC1[1] = 0x00;
header->MAC1[2] = 0x00;
header->MAC1[3] = 0x00;
header->MAC1[4] = 0x00;
header->MAC1[5] = 0x01;
header->MAC2[0] = 0x00;
header->MAC2[1] = 0x00;
header->MAC2[2] = 0x00;
header->MAC2[3] = 0x00;
header->MAC2[4] = 0x00;
header->MAC2[5] = 0x02;
header->MAC3[0] = 0x00;
header->MAC3[1] = 0x00;
header->MAC3[2] = 0x00;
header->MAC3[3] = 0x00;
header->MAC3[4] = 0x00;
header->MAC3[5] = 0x03;
}
return 0;
}
#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
static const struct ddr_data ddr3_baltos_data = {
.datardsratio0 = MT41K256M16HA125E_RD_DQS,
.datawdsratio0 = MT41K256M16HA125E_WR_DQS,
.datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE,
.datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA,
};
static const struct cmd_control ddr3_baltos_cmd_ctrl_data = {
.cmd0csratio = MT41K256M16HA125E_RATIO,
.cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
.cmd1csratio = MT41K256M16HA125E_RATIO,
.cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
.cmd2csratio = MT41K256M16HA125E_RATIO,
.cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
};
static struct emif_regs ddr3_baltos_emif_reg_data = {
.sdram_config = MT41K256M16HA125E_EMIF_SDCFG,
.ref_ctrl = MT41K256M16HA125E_EMIF_SDREF,
.sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1,
.sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2,
.sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3,
.zq_config = MT41K256M16HA125E_ZQ_CFG,
.emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY,
};
#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, OSC-1, 1, -1, -1, -1, -1};
const struct dpll_params dpll_ddr_evm_sk = {
303, OSC-1, 1, -1, -1, -1, -1};
const struct dpll_params dpll_ddr_baltos = {
400, OSC-1, 1, -1, -1, -1, -1};
void am33xx_spl_board_init(void)
{
int mpu_vdd;
int sil_rev;
/* Get the frequency */
dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
/*
* The GP EVM, IDK and EVM SK use a TPS65910 PMIC. For all
* MPU frequencies we support we use a CORE voltage of
* 1.1375V. For MPU voltage we need to switch based on
* the frequency we are running at.
*/
i2c_set_bus_num(1);
printf("I2C speed: %d Hz\n", CONFIG_SYS_OMAP24_I2C_SPEED);
if (i2c_probe(TPS65910_CTRL_I2C_ADDR)) {
puts("i2c: cannot access TPS65910\n");
return;
}
/*
* Depending on MPU clock and PG we will need a different
* VDD to drive at that speed.
*/
sil_rev = readl(&cdev->deviceid) >> 28;
mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev,
dpll_mpu_opp100.m);
/* Tell the TPS65910 to use i2c */
tps65910_set_i2c_control();
/* First update MPU voltage. */
if (tps65910_voltage_update(MPU, mpu_vdd))
return;
/* Second, update the CORE voltage. */
if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3))
return;
/* Set CORE Frequencies to OPP100 */
do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
/* Set MPU Frequency to what we detected now that voltages are set */
do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
writel(0x000010ff, PRM_DEVICE_INST + 4);
}
const struct dpll_params *get_dpll_ddr_params(void)
{
enable_i2c1_pin_mux();
i2c_set_bus_num(1);
return &dpll_ddr_baltos;
}
void set_uart_mux_conf(void)
{
enable_uart0_pin_mux();
}
void set_mux_conf_regs(void)
{
enable_board_pin_mux();
}
const struct ctrl_ioregs ioregs_baltos = {
.cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
.cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
.cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
.dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
.dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
};
void sdram_init(void)
{
gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en");
gpio_direction_output(GPIO_DDR_VTT_EN, 1);
config_ddr(400, &ioregs_baltos,
&ddr3_baltos_data,
&ddr3_baltos_cmd_ctrl_data,
&ddr3_baltos_emif_reg_data, 0);
}
#endif
/*
* Basic board specific setup. Pinmux has been handled already.
*/
int board_init(void)
{
#if defined(CONFIG_HW_WATCHDOG)
hw_watchdog_init();
#endif
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
#if defined(CONFIG_NOR) || defined(CONFIG_NAND)
gpmc_init();
#endif
return 0;
}
int ft_board_setup(void *blob, bd_t *bd)
{
int node, ret;
unsigned char mac_addr[6];
BSP_VS_HWPARAM header;
/* get production data */
if (read_eeprom(&header))
return 0;
/* setup MAC1 */
mac_addr[0] = header.MAC1[0];
mac_addr[1] = header.MAC1[1];
mac_addr[2] = header.MAC1[2];
mac_addr[3] = header.MAC1[3];
mac_addr[4] = header.MAC1[4];
mac_addr[5] = header.MAC1[5];
node = fdt_path_offset(blob, "/ocp/ethernet/slave@4a100200");
if (node < 0) {
printf("no /soc/fman/ethernet path offset\n");
return -ENODEV;
}
ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6);
if (ret) {
printf("error setting local-mac-address property\n");
return -ENODEV;
}
/* setup MAC2 */
mac_addr[0] = header.MAC2[0];
mac_addr[1] = header.MAC2[1];
mac_addr[2] = header.MAC2[2];
mac_addr[3] = header.MAC2[3];
mac_addr[4] = header.MAC2[4];
mac_addr[5] = header.MAC2[5];
node = fdt_path_offset(blob, "/ocp/ethernet/slave@4a100300");
if (node < 0) {
printf("no /soc/fman/ethernet path offset\n");
return -ENODEV;
}
ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6);
if (ret) {
printf("error setting local-mac-address property\n");
return -ENODEV;
}
printf("\nFDT was successfully setup\n");
return 0;
}
static struct module_pin_mux pcie_sw_pin_mux[] = {
{OFFSET(mii1_rxdv), (MODE(7) | PULLUDEN )}, /* GPIO3_4 */
{-1},
};
static struct module_pin_mux dip_pin_mux[] = {
{OFFSET(gpmc_ad12), (MODE(7) | RXACTIVE )}, /* GPIO1_12 */
{OFFSET(gpmc_ad13), (MODE(7) | RXACTIVE )}, /* GPIO1_13 */
{OFFSET(gpmc_ad14), (MODE(7) | RXACTIVE )}, /* GPIO1_14 */
{OFFSET(gpmc_ad15), (MODE(7) | RXACTIVE )}, /* GPIO1_15 */
{-1},
};
#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
BSP_VS_HWPARAM header;
char model[4];
/* get production data */
if (read_eeprom(&header)) {
strcpy(model, "211");
} else {
sprintf(model, "%d", header.SystemId);
if (header.SystemId == 215) {
configure_module_pin_mux(dip_pin_mux);
baltos_set_console();
}
}
/* turn power for the mPCIe slot */
configure_module_pin_mux(pcie_sw_pin_mux);
if (gpio_request(MPCIE_SW, "mpcie_sw")) {
printf("failed to export GPIO %d\n", MPCIE_SW);
return -ENODEV;
}
if (gpio_direction_output(MPCIE_SW, 1)) {
printf("failed to set GPIO %d direction\n", MPCIE_SW);
return -ENODEV;
}
env_set("board_name", model);
#endif
return 0;
}
#endif
#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
(defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
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 = 0,
},
{
.slave_reg_ofs = 0x308,
.sliver_reg_ofs = 0xdc0,
.phy_addr = 7,
},
};
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 = 2,
.slave_data = cpsw_slaves,
.active_slave = 1,
.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,
};
#endif
#if ((defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USB_ETHER)) \
&& defined(CONFIG_SPL_BUILD)) || \
((defined(CONFIG_DRIVER_TI_CPSW) || \
defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET)) && \
!defined(CONFIG_SPL_BUILD))
int board_eth_init(bd_t *bis)
{
int rv, n = 0;
uint8_t mac_addr[6];
uint32_t mac_hi, mac_lo;
/*
* Note here that we're using CPSW1 since that has a 1Gbit PHY while
* CSPW0 has a 100Mbit PHY.
*
* On product, CPSW1 maps to port labeled WAN.
*/
/* try reading mac address from efuse */
mac_lo = readl(&cdev->macid1l);
mac_hi = readl(&cdev->macid1h);
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 (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
(defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
if (!env_get("ethaddr")) {
printf("<ethaddr> not set. Validating first E-fuse MAC\n");
if (is_valid_ethaddr(mac_addr))
eth_env_set_enetaddr("ethaddr", mac_addr);
}
#ifdef CONFIG_DRIVER_TI_CPSW
writel((GMII1_SEL_RMII | GMII2_SEL_RGMII | RGMII2_IDMODE), &cdev->miisel);
cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_RGMII;
rv = cpsw_register(&cpsw_data);
if (rv < 0)
printf("Error %d registering CPSW switch\n", rv);
else
n += rv;
#endif
/*
*
* CPSW RGMII Internal Delay Mode is not supported in all PVT
* operating points. So we must set the TX clock delay feature
* in the AR8051 PHY. Since we only support a single ethernet
* device in U-Boot, we only do this for the first instance.
*/
#define AR8051_PHY_DEBUG_ADDR_REG 0x1d
#define AR8051_PHY_DEBUG_DATA_REG 0x1e
#define AR8051_DEBUG_RGMII_CLK_DLY_REG 0x5
#define AR8051_RGMII_TX_CLK_DLY 0x100
const char *devname;
devname = miiphy_get_current_dev();
miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_ADDR_REG,
AR8051_DEBUG_RGMII_CLK_DLY_REG);
miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_DATA_REG,
AR8051_RGMII_TX_CLK_DLY);
#endif
return n;
}
#endif
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