upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/include/configs/spc1920.h

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/*
* (C) Copyright 2006
* Markus Klotzbuecher, DENX Software Engineering, mk@denx.de
*
* Configuation settings for the SPC1920 board.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __H
#define __CONFIG_H
#define CONFIG_SPC1920 1 /* SPC1920 board */
#define CONFIG_MPC885 1 /* MPC885 CPU */
#define CONFIG_SYS_TEXT_BASE 0xFFF00000
#define CONFIG_8xx_CONS_SMC1 /* Console is on SMC1 */
#undef CONFIG_8xx_CONS_SMC2
#undef CONFIG_8xx_CONS_NONE
#define CONFIG_MII
#define CONFIG_MII_INIT 1
#undef CONFIG_ETHER_ON_FEC1
#define CONFIG_ETHER_ON_FEC2
#define FEC_ENET
#define CONFIG_FEC2_PHY 1
#define CONFIG_BAUDRATE 19200
/* use PLD CLK4 instead of brg */
#define CONFIG_SYS_SPC1920_SMC1_CLK4
#define CONFIG_8xx_OSCLK 10000000 /* 10 MHz oscillator on EXTCLK */
#define CONFIG_8xx_CPUCLK_DEFAULT 50000000
#define CONFIG_SYS_8xx_CPUCLK_MIN 40000000
#define CONFIG_SYS_8xx_CPUCLK_MAX 133000000
#define CONFIG_SYS_RESET_ADDRESS 0xC0000000
#define CONFIG_BOARD_EARLY_INIT_F
#define CONFIG_LAST_STAGE_INIT
#if 0
#define CONFIG_BOOTDELAY -1 /* autoboot disabled */
#else
#define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
#endif
#define CONFIG_ENV_OVERWRITE
#define CONFIG_NFSBOOTCOMMAND \
"dhcp;" \
"setenv bootargs root=/dev/nfs rw nfsroot=$rootpath " \
"ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:eth0:off;" \
"bootm"
#define CONFIG_BOOTCOMMAND \
"setenv bootargs root=/dev/mtdblock2 rw mtdparts=phys:1280K(ROM)ro,-(root) "\
"ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:eth0:off;" \
"bootm fe080000"
#undef CONFIG_BOOTARGS
#undef CONFIG_WATCHDOG /* watchdog disabled */
#define CONFIG_BZIP2 /* include support for bzip2 compressed images */
/*
* BOOTP options
*/
#define CONFIG_BOOTP_BOOTFILESIZE
#define CONFIG_BOOTP_BOOTPATH
#define CONFIG_BOOTP_GATEWAY
#define CONFIG_BOOTP_HOSTNAME
/*
* Command line configuration.
*/
#include <config_cmd_default.h>
#define CONFIG_CMD_ASKENV
#define CONFIG_CMD_DATE
#define CONFIG_CMD_ECHO
#define CONFIG_CMD_IMMAP
#define CONFIG_CMD_JFFS2
#define CONFIG_CMD_NET
#define CONFIG_CMD_PING
#define CONFIG_CMD_DHCP
#define CONFIG_CMD_I2C
#define CONFIG_CMD_MII
/*
* Miscellaneous configurable options
*/
#define CONFIG_SYS_LONGHELP /* undef to save memory */
#define CONFIG_SYS_HUSH_PARSER
#if defined(CONFIG_CMD_KGDB)
#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
#else
#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
#endif
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16) /* Print Buffer Size */
#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
#define CONFIG_SYS_LOAD_ADDR 0x00100000
#define CONFIG_SYS_BAUDRATE_TABLE { 2400, 4800, 9600, 19200 }
/*
* Low Level Configuration Settings
* (address mappings, register initial values, etc.)
* You should know what you are doing if you make changes here.
*/
/*-----------------------------------------------------------------------
* Internal Memory Mapped Register
*/
#define CONFIG_SYS_IMMR 0xF0000000
/*-----------------------------------------------------------------------
* Definitions for initial stack pointer and data area (in DPRAM)
*/
#define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
#define CONFIG_SYS_INIT_RAM_SIZE 0x2F00 /* Size of used area in DPRAM */
#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
#define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
/*-----------------------------------------------------------------------
* Start addresses for the final memory configuration
* (Set up by the startup code)
* Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
*/
#define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works on */
#define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
/*
* For booting Linux, the board info and command line data
* have to be in the first 8 MB of memory, since this is
* the maximum mapped by the Linux kernel during initialization.
*/
#define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
#define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 KB for monitor */
#ifdef CONFIG_BZIP2
#define CONFIG_SYS_MALLOC_LEN (2500 << 10) /* Reserve ~2.5 MB for malloc() */
#else
#define CONFIG_SYS_MALLOC_LEN (384 << 10) /* Reserve 384 kB for malloc() */
#endif /* CONFIG_BZIP2 */
#define CONFIG_SYS_ALLOC_DPRAM 1 /* use allocation routines */
/*
* Flash
*/
/*-----------------------------------------------------------------------
* Flash organisation
*/
#define CONFIG_SYS_FLASH_BASE 0xFE000000
#define CONFIG_SYS_FLASH_CFI /* The flash is CFI compatible */
#define CONFIG_FLASH_CFI_DRIVER /* Use common CFI driver */
#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* Max number of flash banks */
#define CONFIG_SYS_MAX_FLASH_SECT 128 /* Max num of sects on one chip */
/* Environment is in flash */
#define CONFIG_ENV_IS_IN_FLASH
#define CONFIG_ENV_SECT_SIZE 0x40000 /* We use one complete sector */
#define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)
#define CONFIG_ENV_OVERWRITE
/*-----------------------------------------------------------------------
* Cache Configuration
*/
#define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
#define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */
#ifdef CONFIG_CMD_DATE
# define CONFIG_RTC_DS3231
# define CONFIG_SYS_I2C_RTC_ADDR 0x68
#endif
/*-----------------------------------------------------------------------
* I2C configuration
*/
#if defined(CONFIG_CMD_I2C)
/* enable I2C and select the hardware/software driver */
#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_SOFT /* I2C bit-banged */
#define CONFIG_SYS_I2C_SOFT_SPEED 93000 /* 93 kHz is supposed to work */
#define CONFIG_SYS_I2C_SOFT_SLAVE 0xFE
/*
* Software (bit-bang) I2C driver configuration
*/
#define PB_SCL 0x00000020 /* PB 26 */
#define PB_SDA 0x00000010 /* PB 27 */
#define I2C_INIT (immr->im_cpm.cp_pbdir |= PB_SCL)
#define I2C_ACTIVE (immr->im_cpm.cp_pbdir |= PB_SDA)
#define I2C_TRISTATE (immr->im_cpm.cp_pbdir &= ~PB_SDA)
#define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
#define I2C_SDA(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \
else immr->im_cpm.cp_pbdat &= ~PB_SDA
#define I2C_SCL(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \
else immr->im_cpm.cp_pbdat &= ~PB_SCL
#define I2C_DELAY udelay(2) /* 1/4 I2C clock duration */
#endif
/*-----------------------------------------------------------------------
* SYPCR - System Protection Control 11-9
* SYPCR can only be written once after reset!
*-----------------------------------------------------------------------
* Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
*/
#if defined(CONFIG_WATCHDOG)
#define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
#else
#define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
#endif
/*-----------------------------------------------------------------------
* SIUMCR - SIU Module Configuration 11-6
*-----------------------------------------------------------------------
* PCMCIA config., multi-function pin tri-state
*/
#define CONFIG_SYS_SIUMCR (SIUMCR_FRC)
/*-----------------------------------------------------------------------
* TBSCR - Time Base Status and Control 11-26
*-----------------------------------------------------------------------
* Clear Reference Interrupt Status, Timebase freezing enabled
*/
#define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBE)
/*-----------------------------------------------------------------------
* PISCR - Periodic Interrupt Status and Control 11-31
*-----------------------------------------------------------------------
* Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
*/
#define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF)
/*-----------------------------------------------------------------------
* SCCR - System Clock and reset Control Register 15-27
*-----------------------------------------------------------------------
* Set clock output, timebase and RTC source and divider,
* power management and some other internal clocks
*/
#define SCCR_MASK SCCR_EBDF11
/* #define CONFIG_SYS_SCCR SCCR_TBS */
#define CONFIG_SYS_SCCR (SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
SCCR_DFALCD00)
/*-----------------------------------------------------------------------
* DER - Debug Enable Register
*-----------------------------------------------------------------------
* Set to zero to prevent the processor from entering debug mode
*/
#define CONFIG_SYS_DER 0
/* Because of the way the 860 starts up and assigns CS0 the entire
* address space, we have to set the memory controller differently.
* Normally, you write the option register first, and then enable the
* chip select by writing the base register. For CS0, you must write
* the base register first, followed by the option register.
*/
/*
* Init Memory Controller:
*/
/* BR0 and OR0 (FLASH) */
#define FLASH_BASE0_PRELIM CONFIG_SYS_FLASH_BASE /* FLASH bank #0 */
/* used to re-map FLASH both when starting from SRAM or FLASH:
* restrict access enough to keep SRAM working (if any)
* but not too much to meddle with FLASH accesses
*/
#define CONFIG_SYS_REMAP_OR_AM 0x80000000 /* OR addr mask */
#define CONFIG_SYS_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
/*
* FLASH timing:
*/
#define CONFIG_SYS_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
OR_SCY_6_CLK | OR_EHTR | OR_BI)
#define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
#define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
#define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V )
/*
* SDRAM CS1 UPMB
*/
#define CONFIG_SYS_SDRAM_BASE 0x00000000
#define CONFIG_SYS_SDRAM_BASE_PRELIM CONFIG_SYS_SDRAM_BASE
#define SDRAM_MAX_SIZE 0x4000000 /* max 64 MB */
#define CONFIG_SYS_PRELIM_OR1_AM 0xF0000000
/* #define CONFIG_SYS_OR1_TIMING OR_CSNT_SAM/\* | OR_G5LS /\\* *\\/ *\/ */
#define SDRAM_TIMING OR_SCY_0_CLK /* SDRAM-Timing */
#define CONFIG_SYS_OR1_PRELIM (CONFIG_SYS_PRELIM_OR1_AM | OR_CSNT_SAM | OR_G5LS | SDRAM_TIMING)
#define CONFIG_SYS_BR1_PRELIM ((CONFIG_SYS_SDRAM_BASE_PRELIM & BR_BA_MSK) | BR_MS_UPMB | BR_V)
/* #define CONFIG_SYS_OR1_FINAL ((CONFIG_SYS_OR1_AM & OR_AM_MSK) | CONFIG_SYS_OR1_TIMING) */
/* #define CONFIG_SYS_BR1_FINAL ((CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMB | BR_V) */
#define CONFIG_SYS_PTB_PER_CLK ((4096 * 16 * 1000) / (4 * 64))
#define CONFIG_SYS_PTA_PER_CLK 195
#define CONFIG_SYS_MBMR_PTB 195
#define CONFIG_SYS_MPTPR MPTPR_PTP_DIV16
#define CONFIG_SYS_MAR 0x88
#define CONFIG_SYS_MBMR_8COL ((CONFIG_SYS_MBMR_PTB << MBMR_PTB_SHIFT) | \
MBMR_AMB_TYPE_0 | \
MBMR_G0CLB_A10 | \
MBMR_DSB_1_CYCL | \
MBMR_RLFB_1X | \
MBMR_WLFB_1X | \
MBMR_TLFB_4X) /* 0x04804114 */ /* 0x10802114 */
#define CONFIG_SYS_MBMR_9COL ((CONFIG_SYS_MBMR_PTB << MBMR_PTB_SHIFT) | \
MBMR_AMB_TYPE_1 | \
MBMR_G0CLB_A10 | \
MBMR_DSB_1_CYCL | \
MBMR_RLFB_1X | \
MBMR_WLFB_1X | \
MBMR_TLFB_4X) /* 0x04804114 */ /* 0x10802114 */
/*
* DSP Host Port Interface CS3
*/
#define CONFIG_SYS_SPC1920_HPI_BASE 0x90000000
#define CONFIG_SYS_PRELIM_OR3_AM 0xF8000000
#define CONFIG_SYS_OR3 (CONFIG_SYS_PRELIM_OR3_AM | \
OR_G5LS | \
OR_SCY_0_CLK | \
OR_BI)
#define CONFIG_SYS_BR3 ((CONFIG_SYS_SPC1920_HPI_BASE & BR_BA_MSK) | \
BR_MS_UPMA | \
BR_PS_16 | \
BR_V)
#define CONFIG_SYS_MAMR (MAMR_GPL_A4DIS | \
MAMR_RLFA_5X | \
MAMR_WLFA_5X)
#define CONFIG_SPC1920_HPI_TEST
#ifdef CONFIG_SPC1920_HPI_TEST
#define HPI_REG(x) (*((volatile u16 *) (CONFIG_SYS_SPC1920_HPI_BASE + x)))
#define HPI_HPIC_1 HPI_REG(0)
#define HPI_HPIC_2 HPI_REG(2)
#define HPI_HPIA_1 HPI_REG(0x2000008)
#define HPI_HPIA_2 HPI_REG(0x2000008 + 2)
#define HPI_HPID_INC_1 HPI_REG(0x1000004)
#define HPI_HPID_INC_2 HPI_REG(0x1000004 + 2)
#define HPI_HPID_NOINC_1 HPI_REG(0x300000c)
#define HPI_HPID_NOINC_2 HPI_REG(0x300000c + 2)
#endif /* CONFIG_SPC1920_HPI_TEST */
/*
* Ramtron FM18L08 FRAM 32KB on CS4
*/
#define CONFIG_SYS_SPC1920_FRAM_BASE 0x80100000
#define CONFIG_SYS_PRELIM_OR4_AM 0xffff8000
#define CONFIG_SYS_OR4 (CONFIG_SYS_PRELIM_OR4_AM | \
OR_ACS_DIV2 | \
OR_BI | \
OR_SCY_4_CLK | \
OR_TRLX)
#define CONFIG_SYS_BR4 ((CONFIG_SYS_SPC1920_FRAM_BASE & BR_BA_MSK) | BR_PS_8 | BR_V)
/*
* PLD CS5
*/
#define CONFIG_SYS_SPC1920_PLD_BASE 0x80000000
#define CONFIG_SYS_PRELIM_OR5_AM 0xffff8000
#define CONFIG_SYS_OR5_PRELIM (CONFIG_SYS_PRELIM_OR5_AM | \
OR_CSNT_SAM | \
OR_ACS_DIV1 | \
OR_BI | \
OR_SCY_0_CLK | \
OR_TRLX)
#define CONFIG_SYS_BR5_PRELIM ((CONFIG_SYS_SPC1920_PLD_BASE & BR_BA_MSK) | BR_PS_8 | BR_V)
#endif /* __CONFIG_H */