u-boot/board/siemens/draco/board.c

387 lines
10 KiB
C
Raw Normal View History

/*
* Board functions for TI AM335X based draco board
* (C) Copyright 2013 Siemens Schweiz AG
* (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
*
* Based on:
*
* Board functions for TI AM335X based boards
* u-boot:/board/ti/am335x/board.c
*
* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
*
* SPDX-License-Identifier: GPL-2.0+
*/
#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 <watchdog.h>
#include "board.h"
#include "../common/factoryset.h"
#include <nand.h>
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_SPL_BUILD
static struct draco_baseboard_id __attribute__((section(".data"))) settings;
#if DDR_PLL_FREQ == 303
#if !defined(CONFIG_TARGET_ETAMIN)
/* Default@303MHz-i0 */
const struct ddr3_data ddr3_default = {
0x33524444, 0x56312e35, 0x0080, 0x0000, 0x003A, 0x003F, 0x009F,
0x0079, 0x0888A39B, 0x26517FDA, 0x501F84EF, 0x00100206, 0x61A44A32,
0x0000093B, 0x0000014A,
"default name @303MHz \0",
"default marking \0",
};
#else
/* etamin board */
const struct ddr3_data ddr3_default = {
0x33524444, 0x56312e36, 0x0080, 0x0000, 0x003A, 0x0010, 0x009F,
0x0050, 0x0888A39B, 0x266D7FDA, 0x501F86AF, 0x00100206, 0x61A44BB2,
0x0000093B, 0x0000018A,
"test-etamin \0",
"generic-8Gbit \0",
};
#endif
#elif DDR_PLL_FREQ == 400
/* Default@400MHz-i0 */
const struct ddr3_data ddr3_default = {
0x33524444, 0x56312e35, 0x0080, 0x0000, 0x0039, 0x0046, 0x00ab,
0x0080, 0x0AAAA4DB, 0x26307FDA, 0x501F821F, 0x00100207, 0x61A45232,
arm, am335x: update for the siemens boards - dxr2: define unused pins as input - do not enable RTC32K OSC on dxr2 board - update default environment - add splashpos=m,m to default environment, so splash screen is always centered. - adapt environment for bootcount feature - add altbootcmd to default environment - rut: SPL add early reset pulse for eth-phy, maXTouch and display - rut: display timing aenderungen - siemens boards: adapt for background color = white - add boutcount feature for the siemens boards store the bootcount in the environment, as we have no softreset save registers on this hardware. Use therefore the CONFIG_BOOTCOUNT_ENV bootcount driver. - change spi mode from 3 to 0 for the lcd init - add gpio pin for lcd reset with state 0 and add mdelay - siemens boards: use own USB id's - add dfu serial and device number for siemens boards Add for the siemens boards the possibility to define in dfu mode, the iSerialNumber and the bcdDevice fields in the USB Device descriptor. - fix upgrade mechanism based on bootcount Correct location of saveenv and remove not active variable. Add CONFIG_BOOT_RETRY_TIME and CONFIG_RESET_TO_RETRY to reboot board in case of empty kernel partition. Without these defines an empty kernel partition leads to an abort of boot process and one remains in u-boot prompt. - general cleanup of dxr2, pxm2 and rut boards all: * Remove net boot from bootcmd Ping can cause a crash on boards without ethernet phy. net_nfs command is used only for development * Add reset at the end of bootcmd In order to have an immediate reset of the boot when bootcmd fails, add reset at the end of bootcmd. rut: * add nand_img_size dxr2: * update nand_img_size * ddr3 timings updated with iocontrol property that can be modified via eeprom. New default parameters from software leveling with draco ES2. Signed-off-by: Samuel Egli <samuel.egli@siemens.com> Signed-off-by: Pascal Bach <pascal.bach@siemens.com> Signed-off-by: Roger Meier <r.meier@siemens.com> Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Matthias Michel <matthias.michel@siemens.com> Cc: Tom Rini <trini@ti.com>
2013-11-04 13:05:03 +00:00
0x00000618, 0x0000014A,
"default name @400MHz \0",
"default marking \0",
};
#endif
static void set_default_ddr3_timings(void)
{
printf("Set default DDR3 settings\n");
settings.ddr3 = ddr3_default;
}
static void print_ddr3_timings(void)
{
printf("\nDDR3\n");
printf("clock:\t\t%d MHz\n", DDR_PLL_FREQ);
printf("device:\t\t%s\n", settings.ddr3.manu_name);
printf("marking:\t%s\n", settings.ddr3.manu_marking);
printf("%-20s, %-8s, %-8s, %-4s\n", "timing parameters", "eeprom",
"default", "diff");
PRINTARGS(magic);
PRINTARGS(version);
PRINTARGS(ddr3_sratio);
PRINTARGS(iclkout);
PRINTARGS(dt0rdsratio0);
PRINTARGS(dt0wdsratio0);
PRINTARGS(dt0fwsratio0);
PRINTARGS(dt0wrsratio0);
PRINTARGS(sdram_tim1);
PRINTARGS(sdram_tim2);
PRINTARGS(sdram_tim3);
PRINTARGS(emif_ddr_phy_ctlr_1);
PRINTARGS(sdram_config);
PRINTARGS(ref_ctrl);
arm, am335x: update for the siemens boards - dxr2: define unused pins as input - do not enable RTC32K OSC on dxr2 board - update default environment - add splashpos=m,m to default environment, so splash screen is always centered. - adapt environment for bootcount feature - add altbootcmd to default environment - rut: SPL add early reset pulse for eth-phy, maXTouch and display - rut: display timing aenderungen - siemens boards: adapt for background color = white - add boutcount feature for the siemens boards store the bootcount in the environment, as we have no softreset save registers on this hardware. Use therefore the CONFIG_BOOTCOUNT_ENV bootcount driver. - change spi mode from 3 to 0 for the lcd init - add gpio pin for lcd reset with state 0 and add mdelay - siemens boards: use own USB id's - add dfu serial and device number for siemens boards Add for the siemens boards the possibility to define in dfu mode, the iSerialNumber and the bcdDevice fields in the USB Device descriptor. - fix upgrade mechanism based on bootcount Correct location of saveenv and remove not active variable. Add CONFIG_BOOT_RETRY_TIME and CONFIG_RESET_TO_RETRY to reboot board in case of empty kernel partition. Without these defines an empty kernel partition leads to an abort of boot process and one remains in u-boot prompt. - general cleanup of dxr2, pxm2 and rut boards all: * Remove net boot from bootcmd Ping can cause a crash on boards without ethernet phy. net_nfs command is used only for development * Add reset at the end of bootcmd In order to have an immediate reset of the boot when bootcmd fails, add reset at the end of bootcmd. rut: * add nand_img_size dxr2: * update nand_img_size * ddr3 timings updated with iocontrol property that can be modified via eeprom. New default parameters from software leveling with draco ES2. Signed-off-by: Samuel Egli <samuel.egli@siemens.com> Signed-off-by: Pascal Bach <pascal.bach@siemens.com> Signed-off-by: Roger Meier <r.meier@siemens.com> Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Matthias Michel <matthias.michel@siemens.com> Cc: Tom Rini <trini@ti.com>
2013-11-04 13:05:03 +00:00
PRINTARGS(ioctr_val);
}
static void print_chip_data(void)
{
struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
printf("\nCPU BOARD\n");
printf("device: \t'%s'\n", settings.chip.sdevname);
printf("hw version: \t'%s'\n", settings.chip.shwver);
printf("max freq: \t%d MHz\n", dpll_mpu_opp100.m);
}
#endif /* CONFIG_SPL_BUILD */
#define AM335X_NAND_ECC_MASK 0x0f
#define AM335X_NAND_ECC_TYPE_16 0x02
static int ecc_type;
struct am335x_nand_geometry {
u32 magic;
u8 nand_geo_addr;
u8 nand_geo_page;
u8 nand_bus;
};
static int draco_read_nand_geometry(void)
{
struct am335x_nand_geometry geo;
/* Read NAND geometry */
if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0x80, 2,
(uchar *)&geo, sizeof(struct am335x_nand_geometry))) {
printf("Could not read the NAND geomtery; something fundamentally wrong on the I2C bus.\n");
return -EIO;
}
if (geo.magic != 0xa657b310) {
printf("%s: bad magic: %x\n", __func__, geo.magic);
return -EFAULT;
}
if ((geo.nand_bus & AM335X_NAND_ECC_MASK) == AM335X_NAND_ECC_TYPE_16)
ecc_type = 16;
else
ecc_type = 8;
return 0;
}
/*
* Read header information from EEPROM into global structure.
*/
static int read_eeprom(void)
{
/* Check if baseboard eeprom is available */
if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
printf("Could not probe the EEPROM; something fundamentally wrong on the I2C bus.\n");
return 1;
}
#ifdef CONFIG_SPL_BUILD
/* Read Siemens eeprom data (DDR3) */
if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, EEPROM_ADDR_DDR3, 2,
(uchar *)&settings.ddr3, sizeof(struct ddr3_data))) {
printf("Could not read the EEPROM; something fundamentally wrong on the I2C bus.\nUse default DDR3 timings\n");
set_default_ddr3_timings();
}
/* Read Siemens eeprom data (CHIP) */
if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, EEPROM_ADDR_CHIP, 2,
(uchar *)&settings.chip, sizeof(settings.chip)))
printf("Could not read chip settings\n");
if (ddr3_default.magic == settings.ddr3.magic &&
ddr3_default.version == settings.ddr3.version) {
printf("Using DDR3 settings from EEPROM\n");
} else {
if (ddr3_default.magic != settings.ddr3.magic)
printf("Warning: No valid DDR3 data in eeprom.\n");
if (ddr3_default.version != settings.ddr3.version)
printf("Warning: DDR3 data version does not match.\n");
printf("Using default settings\n");
set_default_ddr3_timings();
}
if (MAGIC_CHIP == settings.chip.magic)
print_chip_data();
else
printf("Warning: No chip data in eeprom\n");
print_ddr3_timings();
return draco_read_nand_geometry();
#endif
return 0;
}
#ifdef CONFIG_SPL_BUILD
static void board_init_ddr(void)
{
struct emif_regs draco_ddr3_emif_reg_data = {
.zq_config = 0x50074BE4,
};
struct ddr_data draco_ddr3_data = {
};
struct cmd_control draco_ddr3_cmd_ctrl_data = {
};
struct ctrl_ioregs draco_ddr3_ioregs = {
};
/* pass values from eeprom */
draco_ddr3_emif_reg_data.sdram_tim1 = settings.ddr3.sdram_tim1;
draco_ddr3_emif_reg_data.sdram_tim2 = settings.ddr3.sdram_tim2;
draco_ddr3_emif_reg_data.sdram_tim3 = settings.ddr3.sdram_tim3;
draco_ddr3_emif_reg_data.emif_ddr_phy_ctlr_1 =
settings.ddr3.emif_ddr_phy_ctlr_1;
draco_ddr3_emif_reg_data.sdram_config = settings.ddr3.sdram_config;
draco_ddr3_emif_reg_data.sdram_config2 = 0x08000000;
draco_ddr3_emif_reg_data.ref_ctrl = settings.ddr3.ref_ctrl;
draco_ddr3_data.datardsratio0 = settings.ddr3.dt0rdsratio0;
draco_ddr3_data.datawdsratio0 = settings.ddr3.dt0wdsratio0;
draco_ddr3_data.datafwsratio0 = settings.ddr3.dt0fwsratio0;
draco_ddr3_data.datawrsratio0 = settings.ddr3.dt0wrsratio0;
draco_ddr3_cmd_ctrl_data.cmd0csratio = settings.ddr3.ddr3_sratio;
draco_ddr3_cmd_ctrl_data.cmd0iclkout = settings.ddr3.iclkout;
draco_ddr3_cmd_ctrl_data.cmd1csratio = settings.ddr3.ddr3_sratio;
draco_ddr3_cmd_ctrl_data.cmd1iclkout = settings.ddr3.iclkout;
draco_ddr3_cmd_ctrl_data.cmd2csratio = settings.ddr3.ddr3_sratio;
draco_ddr3_cmd_ctrl_data.cmd2iclkout = settings.ddr3.iclkout;
draco_ddr3_ioregs.cm0ioctl = settings.ddr3.ioctr_val,
draco_ddr3_ioregs.cm1ioctl = settings.ddr3.ioctr_val,
draco_ddr3_ioregs.cm2ioctl = settings.ddr3.ioctr_val,
draco_ddr3_ioregs.dt0ioctl = settings.ddr3.ioctr_val,
draco_ddr3_ioregs.dt1ioctl = settings.ddr3.ioctr_val,
config_ddr(DDR_PLL_FREQ, &draco_ddr3_ioregs, &draco_ddr3_data,
&draco_ddr3_cmd_ctrl_data, &draco_ddr3_emif_reg_data, 0);
}
static void spl_siemens_board_init(void)
{
return;
}
#endif /* if def CONFIG_SPL_BUILD */
#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
int ret;
ret = draco_read_nand_geometry();
if (ret != 0)
return ret;
nand_curr_device = 0;
omap_nand_switch_ecc(1, ecc_type);
#ifdef CONFIG_TARGET_ETAMIN
nand_curr_device = 1;
omap_nand_switch_ecc(1, ecc_type);
#endif
#ifdef CONFIG_FACTORYSET
/* Set ASN in environment*/
if (factory_dat.asn[0] != 0) {
env_set("dtb_name", (char *)factory_dat.asn);
} else {
/* dtb suffix gets added in load script */
env_set("dtb_name", "am335x-draco");
}
#else
env_set("dtb_name", "am335x-draco");
#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,
.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 = 4,
.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,
};
#if defined(CONFIG_DRIVER_TI_CPSW) || \
(defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET))
int board_eth_init(bd_t *bis)
{
struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
int n = 0;
int rv;
factoryset_env_set();
/* Set rgmii mode and enable rmii clock to be sourced from chip */
writel((RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE), &cdev->miisel);
rv = cpsw_register(&cpsw_data);
if (rv < 0)
printf("Error %d registering CPSW switch\n", rv);
else
n += rv;
return n;
}
static int do_switch_reset(cmd_tbl_t *cmdtp, int flag, int argc,
char *const argv[])
{
/* Reset SMSC LAN9303 switch for default configuration */
gpio_request(GPIO_LAN9303_NRST, "nRST");
gpio_direction_output(GPIO_LAN9303_NRST, 0);
/* assert active low reset for 200us */
udelay(200);
gpio_set_value(GPIO_LAN9303_NRST, 1);
return 0;
};
U_BOOT_CMD(
switch_rst, CONFIG_SYS_MAXARGS, 1, do_switch_reset,
"Reset LAN9303 switch via its reset pin",
""
);
#endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */
#endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */
#ifdef CONFIG_NAND_CS_INIT
/* GPMC definitions for second nand cs1 */
static const u32 gpmc_nand_config[] = {
ETAMIN_NAND_GPMC_CONFIG1,
ETAMIN_NAND_GPMC_CONFIG2,
ETAMIN_NAND_GPMC_CONFIG3,
ETAMIN_NAND_GPMC_CONFIG4,
ETAMIN_NAND_GPMC_CONFIG5,
ETAMIN_NAND_GPMC_CONFIG6,
/*CONFIG7- computed as params */
};
static void board_nand_cs_init(void)
{
enable_gpmc_cs_config(gpmc_nand_config, &gpmc_cfg->cs[1],
0x18000000, GPMC_SIZE_16M);
}
#endif
#include "../common/board.c"