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4a69366967
u-boot-brain/include/configs/microblaze-generic.h
Michal Simek 4a69366967 microblaze: Convert generic platform to DM gpio 
Converting GPIO to DM requires to do changes in reset subsystem
that's why support for Microblaze soft reset via sysreset and GPIO
sysreset support was added.
These two patches enables enabling GPIO DM.
Microblaze soft reset is bind at last reset method.

GPIO reset is handled via sysreset with adding this fragment to DT.

gpio-restart {
	compatible = "gpio-restart";
	gpios = <&reset_gpio 0 0 0>;
	/* 3rd cell ACTIVE_HIGH = 0, ACTIVE_LOW = 1 */
};

hard-reset-gpio property is not documented and also handled.
Conversion is required.

Unfortunately do_reset is required for SPL that's why use only soft
microblaze reset for now.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-07-19 10:49:55 +02:00

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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2007-2010 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*/
#ifndef __CONFIG_H
#define __CONFIG_H
#include "../board/xilinx/microblaze-generic/xparameters.h"
/* MicroBlaze CPU */
#define MICROBLAZE_V5 1
/* linear and spi flash memory */
#ifdef XILINX_FLASH_START
#define FLASH
#undef SPIFLASH
#undef RAMENV /* hold environment in flash */
#else
#ifdef XILINX_SPI_FLASH_BASEADDR
#undef FLASH
#define SPIFLASH
#undef RAMENV /* hold environment in flash */
#else
#undef FLASH
#undef SPIFLASH
#define RAMENV /* hold environment in RAM */
#endif
#endif
/* uart */
/* The following table includes the supported baudrates */
# define CONFIG_SYS_BAUDRATE_TABLE \
{300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400}
/* setting reset address */
/*#define CONFIG_SYS_RESET_ADDRESS CONFIG_SYS_TEXT_BASE*/
#define CONFIG_SYS_MALLOC_LEN 0xC0000
/* Stack location before relocation */
#define CONFIG_SYS_INIT_SP_OFFSET (CONFIG_SYS_TEXT_BASE - \
CONFIG_SYS_MALLOC_F_LEN)
/*
* CFI flash memory layout - Example
* CONFIG_SYS_FLASH_BASE = 0x2200_0000;
* CONFIG_SYS_FLASH_SIZE = 0x0080_0000; 8MB
*
* SECT_SIZE = 0x20000; 128kB is one sector
* CONFIG_ENV_SIZE = SECT_SIZE; 128kB environment store
*
* 0x2200_0000 CONFIG_SYS_FLASH_BASE
* FREE 256kB
* 0x2204_0000 CONFIG_ENV_ADDR
* ENV_AREA 128kB
* 0x2206_0000
* FREE
* 0x2280_0000 CONFIG_SYS_FLASH_BASE + CONFIG_SYS_FLASH_SIZE
*
*/
#ifdef FLASH
# define CONFIG_SYS_FLASH_BASE XILINX_FLASH_START
# define CONFIG_SYS_FLASH_SIZE XILINX_FLASH_SIZE
# define CONFIG_SYS_FLASH_CFI 1
# define CONFIG_FLASH_CFI_DRIVER 1
/* ?empty sector */
# define CONFIG_SYS_FLASH_EMPTY_INFO 1
/* max number of memory banks */
# define CONFIG_SYS_MAX_FLASH_BANKS 1
/* max number of sectors on one chip */
# define CONFIG_SYS_MAX_FLASH_SECT 512
/* hardware flash protection */
# define CONFIG_SYS_FLASH_PROTECTION
/* use buffered writes (20x faster) */
# define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1
# ifdef RAMENV
# define CONFIG_ENV_SIZE 0x1000
# define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SIZE)
# else /* FLASH && !RAMENV */
/* 128K(one sector) for env */
# define CONFIG_ENV_SECT_SIZE 0x20000
# define CONFIG_ENV_ADDR \
(CONFIG_SYS_FLASH_BASE + (2 * CONFIG_ENV_SECT_SIZE))
# define CONFIG_ENV_SIZE 0x20000
# endif /* FLASH && !RAMBOOT */
#else /* !FLASH */
#ifdef SPIFLASH
# define CONFIG_SYS_SPI_BASE XILINX_SPI_FLASH_BASEADDR
# define CONFIG_SF_DEFAULT_MODE SPI_MODE_3
# define CONFIG_SF_DEFAULT_SPEED XILINX_SPI_FLASH_MAX_FREQ
# define CONFIG_SF_DEFAULT_CS XILINX_SPI_FLASH_CS
# ifdef RAMENV
# define CONFIG_ENV_SIZE 0x1000
# define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SIZE)
# else /* SPIFLASH && !RAMENV */
# define CONFIG_ENV_SPI_MODE SPI_MODE_3
# define CONFIG_ENV_SPI_MAX_HZ CONFIG_SF_DEFAULT_SPEED
# define CONFIG_ENV_SPI_CS CONFIG_SF_DEFAULT_CS
/* 128K(two sectors) for env */
# define CONFIG_ENV_SECT_SIZE 0x10000
# define CONFIG_ENV_SIZE (2 * CONFIG_ENV_SECT_SIZE)
/* Warning: adjust the offset in respect of other flash content and size */
# define CONFIG_ENV_OFFSET (128 * CONFIG_ENV_SECT_SIZE) /* at 8MB */
# endif /* SPIFLASH && !RAMBOOT */
#else /* !SPIFLASH */
/* ENV in RAM */
# define CONFIG_ENV_SIZE 0x1000
# define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SIZE)
#endif /* !SPIFLASH */
#endif /* !FLASH */
#if defined(XILINX_USE_ICACHE)
# define CONFIG_ICACHE
#else
# undef CONFIG_ICACHE
#endif
#if defined(XILINX_USE_DCACHE)
# define CONFIG_DCACHE
#else
# undef CONFIG_DCACHE
#endif
#ifndef XILINX_DCACHE_BYTE_SIZE
#define XILINX_DCACHE_BYTE_SIZE 32768
#endif
/*
* BOOTP options
*/
#define CONFIG_BOOTP_BOOTFILESIZE
#if defined(CONFIG_CMD_JFFS2)
# define CONFIG_MTD_PARTITIONS
#endif
#if defined(CONFIG_CMD_UBI)
# define CONFIG_MTD_PARTITIONS
#endif
#if defined(CONFIG_MTD_PARTITIONS)
/* MTD partitions */
#define CONFIG_MTD_DEVICE /* needed for mtdparts commands */
#define CONFIG_FLASH_CFI_MTD
/* default mtd partition table */
#endif
/* size of console buffer */
#define CONFIG_SYS_CBSIZE 512
/* max number of command args */
#define CONFIG_SYS_MAXARGS 15
/* default load address */
#define CONFIG_SYS_LOAD_ADDR 0
#define CONFIG_HOSTNAME "microblaze-generic"
#define CONFIG_BOOTCOMMAND "base 0;tftp 11000000 image.img;bootm"
/* architecture dependent code */
#define CONFIG_SYS_USR_EXCEP /* user exception */
#define CONFIG_PREBOOT "echo U-BOOT for ${hostname};setenv preboot;echo"
#ifndef CONFIG_EXTRA_ENV_SETTINGS
#define CONFIG_EXTRA_ENV_SETTINGS "unlock=yes\0" \
"nor0=flash-0\0"\
"mtdparts=mtdparts=flash-0:"\
"256k(u-boot),256k(env),3m(kernel),"\
"1m(romfs),1m(cramfs),-(jffs2)\0"\
"nc=setenv stdout nc;"\
"setenv stdin nc\0" \
"serial=setenv stdout serial;"\
"setenv stdin serial\0"
#endif
/* Enable flat device tree support */
#define CONFIG_LMB 1
#if defined(CONFIG_XILINX_AXIEMAC)
# define CONFIG_MII 1
# define CONFIG_SYS_FAULT_ECHO_LINK_DOWN 1
#else
# undef CONFIG_MII
#endif
/* SPL part */
#ifdef CONFIG_SYS_FLASH_BASE
# define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_FLASH_BASE
#endif
/* for booting directly linux */
#define CONFIG_SYS_FDT_BASE (CONFIG_SYS_FLASH_BASE + \
0x40000)
#define CONFIG_SYS_FDT_SIZE (16 << 10)
#define CONFIG_SYS_SPL_ARGS_ADDR (CONFIG_SYS_TEXT_BASE + \
0x1000000)
/* SP location before relocation, must use scratch RAM */
/* BRAM start */
#define CONFIG_SYS_INIT_RAM_ADDR 0x0
/* BRAM size - will be generated */
#define CONFIG_SYS_INIT_RAM_SIZE 0x100000
# define CONFIG_SPL_STACK_ADDR (CONFIG_SYS_INIT_RAM_ADDR + \
CONFIG_SYS_INIT_RAM_SIZE - \
CONFIG_SYS_MALLOC_F_LEN)
/* Just for sure that there is a space for stack */
#define CONFIG_SPL_STACK_SIZE 0x100
#define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE
#define CONFIG_SPL_MAX_FOOTPRINT (CONFIG_SYS_INIT_RAM_SIZE - \
CONFIG_SYS_INIT_RAM_ADDR - \
CONFIG_SYS_MALLOC_F_LEN - \
CONFIG_SPL_STACK_SIZE)
#endif /* __CONFIG_H */
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