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u-boot-brain/board/birdland/bav335x/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

430 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* board.c
*
* Board functions for Birdland Audio BAV335x Network Processor
*
* Copyright (c) 2012-2014 Birdland Audio - http://birdland.com/oem
*/
#include <common.h>
#include <errno.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/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 <environment.h>
#include "board.h"
DECLARE_GLOBAL_DATA_PTR;
/* GPIO that controls power to DDR on EVM-SK */
#define GPIO_DDR_VTT_EN 7
static __maybe_unused struct ctrl_dev *cdev =
(struct ctrl_dev *)CTRL_DEVICE_BASE;
/*
* Read header information from EEPROM into global structure.
*/
static int read_eeprom(struct board_eeconfig *header)
{
/* Check if baseboard eeprom is available */
if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR))
return -ENODEV;
/* read the eeprom using i2c */
if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)header,
sizeof(struct board_eeconfig)))
return -EIO;
if (header->magic != BOARD_MAGIC) {
/* read the i2c eeprom again using only a 1 byte address */
if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header,
sizeof(struct board_eeconfig)))
return -EIO;
if (header->magic != BOARD_MAGIC)
return -EINVAL;
}
return 0;
}
enum board_type get_board_type(bool debug)
{
int ecode;
struct board_eeconfig header;
ecode = read_eeprom(&header);
if (ecode == 0) {
if (header.version[1] == 'A') {
if (debug)
puts("=== Detected Board model BAV335x Rev.A");
return BAV335A;
} else if (header.version[1] == 'B') {
if (debug)
puts("=== Detected Board model BAV335x Rev.B");
return BAV335B;
} else if (debug) {
puts("### Un-known board model in serial-EE\n");
}
} else if (debug) {
switch (ecode) {
case -ENODEV:
puts("### Board doesn't have a serial-EE\n");
break;
case -EINVAL:
puts("### Board serial-EE signature is incorrect.\n");
break;
default:
puts("### IO Error reading serial-EE.\n");
break;
}
}
#if (CONFIG_BAV_VERSION == 1)
if (debug)
puts("### Selecting BAV335A as per config\n");
return BAV335A;
#elif (CONFIG_BAV_VERSION == 2)
if (debug)
puts("### Selecting BAV335B as per config\n");
return BAV335B;
#endif
#if (NOT_DEFINED == 2)
#error "SHOULD NEVER DISPLAY THIS"
#endif
if (debug)
puts("### Defaulting to model BAV335x Rev.B\n");
return BAV335B;
}
#ifndef CONFIG_SKIP_LOWLEVEL_INIT
static const struct ddr_data ddr3_bav335x_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_bav335x_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_bav335x_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' */
if (serial_tstc() && serial_getc() == 'c')
return 1;
#ifdef CONFIG_SPL_ENV_SUPPORT
env_init();
env_load();
if (env_get_yesno("boot_os") != 1)
return 1;
#endif
return 0;
}
#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_bone_black = {
400, OSC-1, 1, -1, -1, -1, -1};
void am33xx_spl_board_init(void)
{
/* debug print detect status */
(void)get_board_type(true);
/* Get the frequency */
/* dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); */
dpll_mpu_opp100.m = MPUPLL_M_1000;
if (i2c_probe(TPS65217_CHIP_PM))
return;
/* Set the USB Current Limit */
if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH,
TPS65217_USB_INPUT_CUR_LIMIT_1800MA,
TPS65217_USB_INPUT_CUR_LIMIT_MASK))
puts("! tps65217_reg_write: could not set USB limit\n");
/* Set the Core Voltage (DCDC3) to 1.125V */
if (tps65217_voltage_update(TPS65217_DEFDCDC3,
TPS65217_DCDC_VOLT_SEL_1125MV)) {
puts("! tps65217_reg_write: could not set Core Voltage\n");
return;
}
/* Set CORE Frequencies to OPP100 */
do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
/* Set the MPU Voltage (DCDC2) */
if (tps65217_voltage_update(TPS65217_DEFDCDC2,
TPS65217_DCDC_VOLT_SEL_1325MV)) {
puts("! tps65217_reg_write: could not set MPU Voltage\n");
return;
}
/*
* Set LDO3, LDO4 output voltage to 3.3V for Beaglebone.
* Set LDO3 to 1.8V and LDO4 to 3.3V for Beaglebone Black.
*/
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, TPS65217_DEFLS1,
TPS65217_LDO_VOLTAGE_OUT_1_8, TPS65217_LDO_MASK))
puts("! tps65217_reg_write: could not set LDO3\n");
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, TPS65217_DEFLS2,
TPS65217_LDO_VOLTAGE_OUT_3_3, TPS65217_LDO_MASK))
puts("! tps65217_reg_write: could not set LDO4\n");
/* Set MPU Frequency to what we detected now that voltages are set */
do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
}
const struct dpll_params *get_dpll_ddr_params(void)
{
enable_i2c0_pin_mux();
i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
return &dpll_ddr_bone_black;
}
void set_uart_mux_conf(void)
{
#if CONFIG_CONS_INDEX == 1
enable_uart0_pin_mux();
#elif CONFIG_CONS_INDEX == 2
enable_uart1_pin_mux();
#elif CONFIG_CONS_INDEX == 3
enable_uart2_pin_mux();
#elif CONFIG_CONS_INDEX == 4
enable_uart3_pin_mux();
#elif CONFIG_CONS_INDEX == 5
enable_uart4_pin_mux();
#elif CONFIG_CONS_INDEX == 6
enable_uart5_pin_mux();
#endif
}
void set_mux_conf_regs(void)
{
enum board_type board;
board = get_board_type(false);
enable_board_pin_mux(board);
}
const struct ctrl_ioregs ioregs_bonelt = {
.cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
.cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
.cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
.dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
.dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
};
void sdram_init(void)
{
config_ddr(400, &ioregs_bonelt,
&ddr3_bav335x_data,
&ddr3_bav335x_cmd_ctrl_data,
&ddr3_bav335x_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;
}
#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
env_set("board_name", "BAV335xB");
env_set("board_rev", "B"); /* Fix me, but why bother.. */
#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 = 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,
};
#endif
/*
* This function will:
* Perform fixups to the PHY present on certain boards. We only need this
* function in:
* - SPL with either CPSW or USB ethernet support
* - Full U-Boot, with either CPSW or USB ethernet
* Build in only these cases to avoid warnings about unused variables
* when we build an SPL that has neither option but full U-Boot will.
*/
#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 ecode, rv, n;
uint8_t mac_addr[6];
struct board_eeconfig header;
__maybe_unused enum board_type board;
/* Default manufacturing address; used when no EE or invalid */
n = 0;
mac_addr[0] = 0;
mac_addr[1] = 0x20;
mac_addr[2] = 0x18;
mac_addr[3] = 0x1C;
mac_addr[4] = 0x00;
mac_addr[5] = 0x01;
ecode = read_eeprom(&header);
/* if we have a valid EE, get mac address from there */
if ((ecode == 0) &&
is_valid_ethaddr((const u8 *)&header.mac_addr[0][0])) {
memcpy(mac_addr, (const void *)&header.mac_addr[0][0], 6);
}
#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
board = get_board_type(false);
/* Rev.A uses 10/100 PHY in mii mode */
if (board == BAV335A) {
writel(MII_MODE_ENABLE, &cdev->miisel);
cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_MII;
cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_MII;
}
/* Rev.B (default) uses GB PHY in rmii mode */
else {
writel((RGMII_MODE_ENABLE | RGMII_INT_DELAY), &cdev->miisel);
cpsw_slaves[0].phy_if = 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
#endif
return n;
}
#endif
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