/* * (C) Copyright 2003 * EMK Elektronik GmbH * Reinhard Meyer * * Configuation settings for the TOP860 board. * * ----------------------------------------------------------------- * SPDX-License-Identifier: GPL-2.0+ */ /* * TOP860 is a simple module: * 16-bit wide FLASH on CS0 (2MB or more) * 32-bit wide DRAM on CS2 (either 4MB or 16MB) * FEC with Am79C874 100-Base-T and Fiber Optic * Ports available, but we choose SMC1 for Console * 8k I2C EEPROM at address 0xae, 6k user available, 2k factory set * 32768Hz crystal PLL set for 49.152MHz Core and 24.576MHz Bus Clock * * This config has been copied from MBX.h / MBX860T.h */ /* * board/config.h - configuration options, board specific */ #ifndef __CONFIG_H #define __CONFIG_H /* * High Level Configuration Options * (easy to change) */ /*----------------------------------------------------------------------- * CPU and BOARD type */ #define CONFIG_MPC860 1 /* This is a MPC860 CPU */ #define CONFIG_MPC860T 1 /* even better... an FEC! */ #define CONFIG_TOP860 1 /* ...on a TOP860 module */ #define CONFIG_SYS_TEXT_BASE 0x80000000 #undef CONFIG_WATCHDOG /* watchdog disabled */ #define CONFIG_IDENT_STRING " EMK TOP860" /*----------------------------------------------------------------------- * CLOCK settings */ #define CONFIG_SYSCLK 49152000 #define CONFIG_SYS_XTAL 32768 #define CONFIG_EBDF 1 #define CONFIG_COM 3 #define CONFIG_RTC_MPC8xx /*----------------------------------------------------------------------- * Physical memory map as defined by EMK */ #define CONFIG_SYS_IMMR 0xFFF00000 /* Internal Memory Mapped Register */ #define CONFIG_SYS_FLASH_BASE 0x80000000 /* FLASH in final mapping */ #define CONFIG_SYS_DRAM_BASE 0x00000000 /* DRAM in final mapping */ #define CONFIG_SYS_FLASH_MAX 0x00400000 /* max FLASH to expect */ #define CONFIG_SYS_DRAM_MAX 0x01000000 /* max DRAM to expect */ /*----------------------------------------------------------------------- * derived values */ #define CONFIG_SYS_MF (CONFIG_SYSCLK/CONFIG_SYS_XTAL) #define CONFIG_SYS_CPUCLOCK CONFIG_SYSCLK #define CONFIG_SYS_BRGCLOCK CONFIG_SYSCLK #define CONFIG_SYS_BUSCLOCK (CONFIG_SYSCLK >> CONFIG_EBDF) #define CONFIG_8xx_GCLK_FREQ CONFIG_SYSCLK /*----------------------------------------------------------------------- * FLASH organization */ #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */ #define CONFIG_SYS_MAX_FLASH_SECT 128 /* max number of sectors on one chip */ #define CONFIG_SYS_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */ #define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */ #define CONFIG_SYS_FLASH_CFI /*----------------------------------------------------------------------- * Command interpreter */ #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */ #undef CONFIG_8xx_CONS_SMC2 #define CONFIG_BAUDRATE 9600 /* * Allow partial commands to be matched to uniqueness. */ #define CONFIG_SYS_MATCH_PARTIAL_CMD /* * Command line configuration. */ #include #define CONFIG_CMD_ASKENV #define CONFIG_CMD_DHCP #define CONFIG_CMD_I2C #define CONFIG_CMD_EEPROM #define CONFIG_CMD_REGINFO #define CONFIG_CMD_IMMAP #define CONFIG_CMD_ELF #define CONFIG_CMD_DATE #define CONFIG_CMD_MII #define CONFIG_CMD_BEDBUG #define CONFIG_SOURCE 1 #define CONFIG_SYS_LOADS_BAUD_CHANGE 1 #undef CONFIG_LOADS_ECHO /* NO echo on for serial download */ #define CONFIG_SYS_LONGHELP /* undef to save memory */ #undef CONFIG_SYS_HUSH_PARSER /* Hush parse for U-Boot */ #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 */ /*----------------------------------------------------------------------- * Memory Test Command */ #define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works on */ #define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */ /*----------------------------------------------------------------------- * Environment handler * only the first 6k in EEPROM are available for user. Of that we use 256b */ #define CONFIG_ENV_IS_IN_EEPROM 1 /* turn on EEPROM env feature */ #define CONFIG_ENV_OFFSET 0x1000 #define CONFIG_ENV_SIZE 0x0700 #define CONFIG_SYS_I2C_EEPROM_ADDR 0x57 #define CONFIG_SYS_FACT_OFFSET 0x1800 #define CONFIG_SYS_FACT_SIZE 0x0800 #define CONFIG_SYS_I2C_FACT_ADDR 0x57 #define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 3 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2 #define CONFIG_SYS_EEPROM_SIZE 0x2000 #define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 12 #define CONFIG_ENV_OVERWRITE #define CONFIG_MISC_INIT_R #define CONFIG_SYS_I2C #define CONFIG_SYS_I2C_SOFT /* I2C bit-banged */ #define CONFIG_SYS_I2C_SOFT_SPEED 100000 #define CONFIG_SYS_I2C_SOFT_SLAVE 0xFE /**/ #define SDA 0x00010 #define SCL 0x00020 #define __I2C_DIR immr->im_cpm.cp_pbdir #define __I2C_DAT immr->im_cpm.cp_pbdat #define __I2C_PAR immr->im_cpm.cp_pbpar #define __I2C_ODR immr->im_cpm.cp_pbodr #define I2C_INIT { __I2C_PAR &= ~(SDA|SCL); \ __I2C_ODR &= ~(SDA|SCL); \ __I2C_DAT |= (SDA|SCL); \ __I2C_DIR|=(SDA|SCL); } #define I2C_READ ((__I2C_DAT & SDA) ? 1 : 0) #define I2C_SDA(x) { if (x) __I2C_DAT |= SDA; else __I2C_DAT &= ~SDA; } #define I2C_SCL(x) { if (x) __I2C_DAT |= SCL; else __I2C_DAT &= ~SCL; } #define I2C_DELAY { udelay(5); } #define I2C_ACTIVE { __I2C_DIR |= SDA; } #define I2C_TRISTATE { __I2C_DIR &= ~SDA; } #define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200, 230400 } /*----------------------------------------------------------------------- * defines we need to get FEC running */ #define CONFIG_FEC_ENET 1 /* Ethernet only via FEC */ #define FEC_ENET 1 /* eth.c needs it that way... */ #define CONFIG_SYS_DISCOVER_PHY 1 #define CONFIG_MII 1 #define CONFIG_MII_INIT 1 #define CONFIG_PHY_ADDR 31 /*----------------------------------------------------------------------- * adresses */ #define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */ #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */ /*----------------------------------------------------------------------- * 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_SDRAM_BASE 0x00000000 #define CONFIG_SYS_FLASH_BASE 0x80000000 /*----------------------------------------------------------------------- * 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_VPD_SIZE 256 /* size in bytes reserved for vpd buffer */ #define CONFIG_SYS_INIT_VPD_OFFSET (CONFIG_SYS_GBL_DATA_OFFSET - CONFIG_SYS_INIT_VPD_SIZE) #define CONFIG_SYS_INIT_SP_OFFSET (CONFIG_SYS_INIT_VPD_OFFSET-8) /*----------------------------------------------------------------------- * Cache Configuration */ #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */ #if defined(CONFIG_CMD_KGDB) #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */ #endif /* Interrupt level assignments. */ #define FEC_INTERRUPT SIU_LEVEL1 /* FEC interrupt */ /*----------------------------------------------------------------------- * Debug Enable Register *----------------------------------------------------------------------- * */ #define CONFIG_SYS_DER 0 /* used in start.S */ /*----------------------------------------------------------------------- * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30 *----------------------------------------------------------------------- * set up PLPRCR (PLL, Low-Power, and Reset Control Register) * 12 MF calculated Multiplication factor * 4 0 0000 * 1 SPLSS 0 System PLL lock status sticky * 1 TEXPS 1 Timer expired status * 1 0 0 * 1 TMIST 0 Timers interrupt status * 1 0 0 * 1 CSRC 0 Clock source (0=DFNH, 1=DFNL) * 2 LPM 00 Low-power modes * 1 CSR 0 Checkstop reset enable * 1 LOLRE 0 Loss-of-lock reset enable * 1 FIOPD 0 Force I/O pull down * 5 0 00000 */ #define CONFIG_SYS_PLPRCR (PLPRCR_TEXPS | ((CONFIG_SYS_MF-1)<<20)) /*----------------------------------------------------------------------- * SYPCR - System Protection Control 11-9 * SYPCR can only be written once after reset! *----------------------------------------------------------------------- * set up SYPCR: * 16 SWTC 0xffff Software watchdog timer count * 8 BMT 0xff Bus monitor timing * 1 BME 1 Bus monitor enable * 3 0 000 * 1 SWF 1 Software watchdog freeze * 1 SWE 0/1 Software watchdog enable * 1 SWRI 0/1 Software watchdog reset/interrupt select (1=HRESET) * 1 SWP 0/1 Software watchdog prescale (1=/2048) */ #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) #endif /*----------------------------------------------------------------------- * SIUMCR - SIU Module Configuration 11-6 *----------------------------------------------------------------------- * set up SIUMCR * 1 EARB 0 External arbitration * 3 EARP 000 External arbitration request priority * 4 0 0000 * 1 DSHW 0 Data show cycles * 2 DBGC 00 Debug pin configuration * 2 DBPC 00 Debug port pins configuration * 1 0 0 * 1 FRC 0 FRZ pin configuration * 1 DLK 0 Debug register lock * 1 OPAR 0 Odd parity * 1 PNCS 0 Parity enable for non memory controller regions * 1 DPC 0 Data parity pins configuration * 1 MPRE 0 Multiprocessor reservation enable * 2 MLRC 11 Multi level reservation control (00=IRQ4, 01=3State, 10=KR/RETRY, 11=SPKROUT) * 1 AEME 0 Async external master enable * 1 SEME 0 Sync external master enable * 1 BSC 0 Byte strobe configuration * 1 GB5E 0 GPL_B5 enable * 1 B2DD 0 Bank 2 double drive * 1 B3DD 0 Bank 3 double drive * 4 0 0000 */ #define CONFIG_SYS_SIUMCR (SIUMCR_MLRC11) /*----------------------------------------------------------------------- * TBSCR - Time Base Status and Control 11-26 *----------------------------------------------------------------------- * Clear Reference Interrupt Status, Timebase freezing enabled */ #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF) /*----------------------------------------------------------------------- * PISCR - Periodic Interrupt Status and Control 11-31 *----------------------------------------------------------------------- * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled */ #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF | PISCR_PTE) /*----------------------------------------------------------------------- * SCCR - System Clock and reset Control Register 15-27 *----------------------------------------------------------------------- * set up SCCR (System Clock and Reset Control Register) * 1 0 0 * 2 COM 11 Clock output module (00=full, 01=half, 11=off) * 3 0 000 * 1 TBS 1 Timebase source (0=OSCCLK, 1=GCLK2) * 1 RTDIV 0 Real-time clock divide (0=/4, 1=/512) * 1 RTSEL 0 Real-time clock select (0=OSCM, 1=EXTCLK) * 1 CRQEN 0 CPM request enable * 1 PRQEN 0 Power management request enable * 2 0 00 * 2 EBDF xx External bus division factor * 2 0 00 * 2 DFSYNC 00 Division factor for SYNCLK * 2 DFBRG 00 Division factor for BRGCLK * 3 DFNL 000 Division factor low frequency * 3 DFNH 000 Division factor high frequency * 5 0 00000 */ #define SCCR_MASK 0 #ifdef CONFIG_EBDF #define CONFIG_SYS_SCCR (SCCR_COM11 | SCCR_TBS | SCCR_EBDF01) #else #define CONFIG_SYS_SCCR (SCCR_COM11 | SCCR_TBS) #endif /*----------------------------------------------------------------------- * Chip Select 0 - FLASH *----------------------------------------------------------------------- * Preliminary Values */ /* FLASH timing: CSNT=1 ACS=10 BIH=1 SCY=4 SETA=0 TLRX=1 EHTR=1 */ #define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | OR_SCY_4_CLK | OR_TRLX | OR_EHTR) #define CONFIG_SYS_OR0_PRELIM (-CONFIG_SYS_FLASH_MAX | CONFIG_SYS_OR_TIMING_FLASH) #define CONFIG_SYS_BR0_PRELIM (CONFIG_SYS_FLASH_BASE | BR_PS_16 | BR_V ) /*----------------------------------------------------------------------- * misc *----------------------------------------------------------------------- * */ /* * Set the autoboot delay in seconds. A delay of -1 disables autoboot */ #define CONFIG_BOOTDELAY 5 /* * Pass the clock frequency to the Linux kernel in units of MHz */ #define CONFIG_CLOCKS_IN_MHZ #define CONFIG_PREBOOT \ "echo;echo" #undef CONFIG_BOOTARGS #define CONFIG_BOOTCOMMAND \ "bootp;" \ "setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \ "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; " \ "bootm" /* * BOOTP options */ #define CONFIG_BOOTP_SUBNETMASK #define CONFIG_BOOTP_GATEWAY #define CONFIG_BOOTP_HOSTNAME #define CONFIG_BOOTP_BOOTPATH #define CONFIG_BOOTP_BOOTFILESIZE /* * Set default IP stuff just to get bootstrap entries into the * environment so that we can source the full default environment. */ #define CONFIG_ETHADDR 9a:52:63:15:85:25 #define CONFIG_SERVERIP 10.0.4.200 #define CONFIG_IPADDR 10.0.4.111 #define CONFIG_SYS_LOAD_ADDR 0x00100000 /* default load address */ /* * 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 */ #endif /* __CONFIG_H */