Hi Stefan,
On 1/13/20 7:53 AM, Stefan Roese wrote:
> Hi Mauro,
>
> On 11.01.20 20:00, Mauro Condarelli wrote:
>> I managed to find ONE of the reasons why my ROM build didn't run:
>> I forgot to enable `CONFIG_BOARD_EARLY_INIT_F=y`.
>
> I see. This explains of course, why your board does not boot without
> any "preloader".
>
>> I wanted, nonetheless, be prepared for further mishaps, but
>> I have some other problems (see below).
>
> Are these issues now fixed? I scanned the discussion about the DEBUG
> UART on the list. Is this working for you now or do you have any other
> issues still? Did you successfully boot your new U-Boot from SPI NOR?
Yes and no :(
I fixed my RAM-based problems, but booting from SPI NOR still refuses to
utter a single byte.
I do attach my defconfigs and my board.c for your reading pleasure (in
case you have troubles getting asleep they should provide a good cure).
I also added a couple of printouts in drivers/pinctrl/pinctrl-uclass.c
and it
turns out system tries to setup pins for uart2, but fails (maybe because
pinctrl@60 is not yet setup correctly?).
This is the output I get from RAM-based u-boot:
<debug_uart> board_debug_uart_init():
board_early_init_f():
pinctrl_select_state_full('palmbus@10000000', 'default'):
pinctrl_select_state_full('uart2@e00', 'default'):
pinctrl_select_state_full: uclass_get_device_by_phandle_id: err=-19
pinctrl_select_state_full('clkctrl@0x2c', 'default'):
U-Boot 2020.01-00370-g97a60844bd-dirty (Jan 13 2020 - 01:03:59 +0100)
CPU: MT7628 Rev 1.2 - Boot from XTAL (3-Byte SPI Addr)
Model: VoCore2
DRAM: 128 MiB
pinctrl_select_state_full('palmbus@10000000', 'default'):
pinctrl_select_state_full('pinctrl@60', 'default'):
pinctrl_select_state_full('pin_state', 'default'):
pinctrl_select_state_full('uart2@e00', 'default'):
pinctrl_select_state_full('uart2_pins', 'default'):
pinctrl_select_state_full('clkctrl@0x2c', 'default'):
pinctrl_select_state_full('watchdog@100', 'default'):
WDT: Started with servicing (60s timeout)
board_early_init_r():
arch_early_init_r():
MMC: pinctrl_select_state_full('mmc@10130000', 'default'):
pinctrl_select_state_full('sd_iot_mode', 'default'):
pinctrl_select_state_full('clk48m@0', 'default'):
pinctrl_select_state_full('mmc@10130000', 'default'):
mmc@10130000: 0
Loading Environment from FAT... *** Warning - bad CRC, using default
environment
In: uart2@e00
Out: uart2@e00
Err: uart2@e00
Model: VoCore2
arch_misc_init():
=>
ROM-based u-boot, as said, does not print *anything*, not even garbage.
I'm beginning to suspect I have some mishap with start address or similar.
I have absolutely no idea how to debug this without a JTAG probe (which
I don't have and would be non-trivial to get working; soldering required).
The only idea I currently have is to modify my "old" u-boot to do
initialization
and then jump to beginning of "new" u-boot.
If I can make it work in an automatic way I can try removing
initialization steps
till I find the "culprit".
Any better idea would be welcome, of course!
If I have to resort to that clumsy method, would be enough to put "new"
in SPI NOR (of course at an higher address, e.g.: 30000 as "old" is only
183272 bytes long) and jump to the first location?
I assume I will have to relocate CONFIG_SYS_TEXT_BASE=0xbc030000
Did I forget something?
> <snip>
>
>>> You might also want to give the new version / patches from Weijie
>>> a try. He added SPL support and a "cleaner" init code for this SoC.
>> I'm interested in giving it a spin (and help debugging on another HW,
>> if needed), but I would like to have a solid base from where to move,
>> changing too many things at once is rarely a good strategy ;)
>
> I fully agree.
I need to be able to start from SPI NOR, before I can commit to some
other task
> Thanks,
> Stefan
Many thanks
Mauro
CONFIG_MIPS=y
CONFIG_SYS_TEXT_BASE=0x9c000000
CONFIG_ENV_SIZE=0x00001000
CONFIG_NR_DRAM_BANKS=1
CONFIG_DEBUG_UART_BOARD_INIT=y
CONFIG_DEBUG_UART_BASE=0x10000e00
CONFIG_DEBUG_UART_CLOCK=40000000
CONFIG_ARCH_MTMIPS=y
CONFIG_BOARD_VOCORE2=y
CONFIG_BOOT_ROM=y
CONFIG_ONBOARD_DDR2_SIZE_1024MBIT=y
CONFIG_ONBOARD_DDR2_CHIP_WIDTH_16BIT=y
CONFIG_MIPS_BOOT_FDT=y
CONFIG_DEBUG_UART=y
CONFIG_ENV_VARS_UBOOT_CONFIG=y
CONFIG_SYS_BOOT_GET_CMDLINE=y
CONFIG_SYS_BOOT_GET_KBD=y
# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
CONFIG_USE_BOOTARGS=y
CONFIG_LOGLEVEL=8
CONFIG_VERSION_VARIABLE=y
CONFIG_DISPLAY_BOARDINFO_LATE=y
CONFIG_ARCH_EARLY_INIT_R=y
CONFIG_ARCH_MISC_INIT=y
CONFIG_BOARD_EARLY_INIT_F=y
CONFIG_BOARD_EARLY_INIT_R=y
CONFIG_HUSH_PARSER=y
# CONFIG_AUTOBOOT is not set
# CONFIG_BOOTM_NETBSD is not set
# CONFIG_BOOTM_PLAN9 is not set
# CONFIG_BOOTM_RTEMS is not set
# CONFIG_BOOTM_VXWORKS is not set
# CONFIG_CMD_XIMG is not set
CONFIG_CMD_MEMINFO=y
CONFIG_CMD_GPIO=y
CONFIG_RANDOM_UUID=y
# CONFIG_CMD_LOADB is not set
# CONFIG_CMD_LOADS is not set
CONFIG_CMD_MMC=y
CONFIG_CMD_MTD=y
CONFIG_CMD_PART=y
CONFIG_CMD_SPI=y
CONFIG_CMD_USB=y
CONFIG_CMD_WDT=y
CONFIG_CMD_FAT=y
CONFIG_CMD_FS_GENERIC=y
CONFIG_CMD_MTDPARTS=y
CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
CONFIG_MTDPARTS_DEFAULT="spi0.0:504k(u-boot),4k(env),4k(factory),2688k(kernel),-(filesystem)"
# CONFIG_ISO_PARTITION is not set
CONFIG_DEFAULT_DEVICE_TREE="vocore_vocore2"
CONFIG_ENV_IS_IN_FAT=y
CONFIG_ENV_FAT_INTERFACE="mmc"
CONFIG_ENV_FAT_DEVICE_AND_PART="0:1"
# CONFIG_NET is not set
# CONFIG_DM_DEVICE_REMOVE is not set
# CONFIG_INPUT is not set
CONFIG_LED=y
CONFIG_LED_BLINK=y
CONFIG_LED_GPIO=y
CONFIG_MMC=y
CONFIG_DM_MMC=y
# CONFIG_MMC_HW_PARTITIONING is not set
CONFIG_MMC_MTK=y
CONFIG_MTD=y
CONFIG_SPI_FLASH_SFDP_SUPPORT=y
CONFIG_SPI_FLASH_GIGADEVICE=y
CONFIG_SPI_FLASH_WINBOND=y
CONFIG_SPI_FLASH_MTD=y
# CONFIG_DM_ETH is not set
# CONFIG_RAM_ROCKCHIP_DEBUG is not set
CONFIG_SPECIFY_CONSOLE_INDEX=y
CONFIG_CONS_INDEX=3
CONFIG_DEBUG_UART_MTK=y
CONFIG_DEBUG_UART_SHIFT=2
CONFIG_DEBUG_UART_ANNOUNCE=y
CONFIG_SPI=y
CONFIG_MT7621_SPI=y
CONFIG_SYSRESET_SYSCON=y
CONFIG_USB=y
CONFIG_DM_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_GENERIC=y
CONFIG_USB_STORAGE=y
CONFIG_WDT=y
CONFIG_WDT_MT7621=y
CONFIG_LZMA=y
CONFIG_LZO=y
CONFIG_MIPS=y
CONFIG_SYS_TEXT_BASE=0x80010000
CONFIG_ENV_SIZE=0x00001000
CONFIG_NR_DRAM_BANKS=1
CONFIG_DEBUG_UART_BOARD_INIT=y
CONFIG_DEBUG_UART_BASE=0x10000e00
CONFIG_DEBUG_UART_CLOCK=40000000
CONFIG_ARCH_MTMIPS=y
CONFIG_BOARD_VOCORE2=y
CONFIG_MIPS_BOOT_FDT=y
CONFIG_DEBUG_UART=y
CONFIG_ENV_VARS_UBOOT_CONFIG=y
CONFIG_SYS_BOOT_GET_CMDLINE=y
CONFIG_SYS_BOOT_GET_KBD=y
# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
CONFIG_USE_BOOTARGS=y
CONFIG_LOGLEVEL=8
CONFIG_VERSION_VARIABLE=y
CONFIG_DISPLAY_BOARDINFO_LATE=y
CONFIG_ARCH_EARLY_INIT_R=y
CONFIG_ARCH_MISC_INIT=y
CONFIG_BOARD_EARLY_INIT_F=y
CONFIG_BOARD_EARLY_INIT_R=y
CONFIG_HUSH_PARSER=y
# CONFIG_AUTOBOOT is not set
# CONFIG_BOOTM_NETBSD is not set
# CONFIG_BOOTM_PLAN9 is not set
# CONFIG_BOOTM_RTEMS is not set
# CONFIG_BOOTM_VXWORKS is not set
# CONFIG_CMD_XIMG is not set
CONFIG_CMD_MEMINFO=y
CONFIG_CMD_GPIO=y
CONFIG_RANDOM_UUID=y
# CONFIG_CMD_LOADB is not set
# CONFIG_CMD_LOADS is not set
CONFIG_CMD_MMC=y
CONFIG_CMD_MTD=y
CONFIG_CMD_PART=y
CONFIG_CMD_SPI=y
CONFIG_CMD_USB=y
CONFIG_CMD_WDT=y
CONFIG_CMD_FAT=y
CONFIG_CMD_FS_GENERIC=y
CONFIG_CMD_MTDPARTS=y
CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
CONFIG_MTDPARTS_DEFAULT="spi0.0:504k(u-boot),4k(env),4k(factory),2688k(kernel),-(filesystem)"
# CONFIG_ISO_PARTITION is not set
CONFIG_DEFAULT_DEVICE_TREE="vocore_vocore2"
CONFIG_ENV_IS_IN_FAT=y
CONFIG_ENV_FAT_INTERFACE="mmc"
CONFIG_ENV_FAT_DEVICE_AND_PART="0:1"
# CONFIG_NET is not set
# CONFIG_DM_DEVICE_REMOVE is not set
# CONFIG_INPUT is not set
CONFIG_LED=y
CONFIG_LED_BLINK=y
CONFIG_LED_GPIO=y
CONFIG_MMC=y
CONFIG_DM_MMC=y
# CONFIG_MMC_HW_PARTITIONING is not set
CONFIG_MMC_MTK=y
CONFIG_MTD=y
CONFIG_SPI_FLASH_SFDP_SUPPORT=y
CONFIG_SPI_FLASH_GIGADEVICE=y
CONFIG_SPI_FLASH_WINBOND=y
CONFIG_SPI_FLASH_MTD=y
# CONFIG_DM_ETH is not set
# CONFIG_RAM_ROCKCHIP_DEBUG is not set
CONFIG_SPECIFY_CONSOLE_INDEX=y
CONFIG_CONS_INDEX=3
CONFIG_DEBUG_UART_MTK=y
CONFIG_DEBUG_UART_SHIFT=2
CONFIG_DEBUG_UART_ANNOUNCE=y
CONFIG_SPI=y
CONFIG_MT7621_SPI=y
CONFIG_SYSRESET_SYSCON=y
CONFIG_USB=y
CONFIG_DM_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_GENERIC=y
CONFIG_USB_STORAGE=y
CONFIG_WDT=y
CONFIG_WDT_MT7621=y
CONFIG_LZMA=y
CONFIG_LZO=y
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2019 Mauro Condarelli <mc5...@mclink.it>
*
* Note: this is largely copied from:
* board/seeed/linkit_smart_7688/board.c
* Copyright (C) 2018 Stefan Roese <s...@denx.de>
*/
#include <common.h>
#include <asm/io.h>
#ifdef CONFIG_DEBUG_UART
#include <debug_uart.h>
#else
#define printascii(_x)
#endif
#define MT76XX_GPIO1_MODE 0x10000060
DECLARE_GLOBAL_DATA_PTR;
void board_debug_uart_init(void)
{
void __iomem *gpio_mode;
/* Select UART2 mode instead of GPIO mode (default) */
gpio_mode = ioremap_nocache(MT76XX_GPIO1_MODE, 0x100);
clrbits_le32(gpio_mode, GENMASK(27, 26));
printascii("board_debug_uart_init():\n");
}
int board_early_init_f(void)
{
/*
* The pin muxing of UART2 also needs to be done, if debug uart
* is not enabled. So we need to call this function here as well.
*/
board_debug_uart_init();
printascii("board_early_init_f():\n");
return 0;
}
int board_early_init_r(void)
{
// debug only
printascii("board_early_init_r():\n");
return 0;
}
int arch_misc_init(void)
{
// debug only
printascii("arch_misc_init():\n");
return 0;
}
int arch_early_init_r(void)
{
// debug only
printascii("arch_early_init_r():\n");
return 0;
}
//int last_stage_init(void)
//{
// // debug only
// printhex8(5);
//
// return 0;
//}
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2019 Mauro Condarelli <mc5...@mclink.it>
*/
#ifndef __VOCORE2_CONFIG_H__
#define __VOCORE2_CONFIG_H__
/* CPU */
#define CONFIG_SYS_MIPS_TIMER_FREQ 290000000
/* RAM */
#define CONFIG_SYS_SDRAM_BASE 0x80000000
#define CONFIG_SYS_LOAD_ADDR CONFIG_SYS_SDRAM_BASE + 0x100000
#define CONFIG_SYS_INIT_SP_OFFSET 0x400000
#ifdef CONFIG_BOOT_RAM
#define CONFIG_SKIP_LOWLEVEL_INIT
#endif
/* UART */
#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200, \
230400, 460800, 921600 }
/* RAM */
#define CONFIG_SYS_MEMTEST_START 0x80100000
#define CONFIG_SYS_MEMTEST_END 0x80400000
/* Memory usage */
#define CONFIG_SYS_MAXARGS 64
#define CONFIG_SYS_MALLOC_LEN (1024 * 1024)
#define CONFIG_SYS_BOOTPARAMS_LEN (128 * 1024)
#define CONFIG_SYS_CBSIZE 512
/* U-Boot */
#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
/* Environment settings */
#if defined(CONFIG_MTDIDS_DEFAULT) && defined(CONFIG_MTDPARTS_DEFAULT)
#define CONFIG_EXTRA_ENV_SETTINGS \
"mtdids=" CONFIG_MTDIDS_DEFAULT "\0" \
"mtdparts=" CONFIG_MTDPARTS_DEFAULT "\0"
#endif
#endif//__VOCORE2_CONFIG_H__
