--- /dev/null
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/*
+ * Dan Malek, Embedded Edge, LLC, dan@embeddededge.com
+ * U-Boot port on STx XTc 8xx board
+ * Mostly copied from Panto's NETTA2 board.
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * High Level Configuration Options
+ * (easy to change)
+ */
+
+#define CONFIG_MPC875 1 /* This is a MPC875 CPU */
+#define CONFIG_STXXTC 1 /* ...on a STx XTc board */
+
+#define CONFIG_SYS_TEXT_BASE 0x40F00000
+
+#define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
+#undef CONFIG_8xx_CONS_SMC2
+#undef CONFIG_8xx_CONS_NONE
+
+#define CONFIG_BAUDRATE 115200 /* console baudrate = 115.2kbps */
+
+#define CONFIG_XIN 10000000 /* 10 MHz input xtal */
+
+/* Select one of few clock rates defined later in this file.
+*/
+/* #define MPC8XX_HZ 50000000 */
+#define MPC8XX_HZ 66666666
+
+#define CONFIG_8xx_GCLK_FREQ MPC8XX_HZ
+
+#if 0
+#define CONFIG_BOOTDELAY -1 /* autoboot disabled */
+#else
+#define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
+#endif
+
+#undef CONFIG_CLOCKS_IN_MHZ /* clocks NOT passsed to Linux in MHz */
+
+#undef CONFIG_BOOTARGS
+#define CONFIG_BOOTCOMMAND \
+ "tftpboot; " \
+ "setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \
+ "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; " \
+ "bootm"
+
+#define CONFIG_SOURCE
+#define CONFIG_LOADS_ECHO 0 /* echo off for serial download */
+#undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */
+
+#undef CONFIG_WATCHDOG /* watchdog disabled */
+
+#define CONFIG_STATUS_LED 1 /* Status LED enabled */
+#define CONFIG_BOARD_SPECIFIC_LED /* version has board specific leds */
+
+/*
+ * BOOTP options
+ */
+#define CONFIG_BOOTP_SUBNETMASK
+#define CONFIG_BOOTP_GATEWAY
+#define CONFIG_BOOTP_HOSTNAME
+#define CONFIG_BOOTP_BOOTPATH
+#define CONFIG_BOOTP_BOOTFILESIZE
+#define CONFIG_BOOTP_NISDOMAIN
+
+
+#undef CONFIG_MAC_PARTITION
+#undef CONFIG_DOS_PARTITION
+
+#define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
+
+#define FEC_ENET 1 /* eth.c needs it that way... */
+#undef CONFIG_SYS_DISCOVER_PHY
+#define CONFIG_MII 1
+#define CONFIG_MII_INIT 1
+#undef CONFIG_RMII
+
+#define CONFIG_ETHER_ON_FEC1 1
+#define CONFIG_FEC1_PHY 1 /* phy address of FEC */
+#undef CONFIG_FEC1_PHY_NORXERR
+
+#define CONFIG_ETHER_ON_FEC2 1
+#define CONFIG_FEC2_PHY 3
+#undef CONFIG_FEC2_PHY_NORXERR
+
+#define CONFIG_ENV_OVERWRITE 1 /* allow modification of vendor params */
+
+
+/*
+ * Command line configuration.
+ */
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_NFS
+#define CONFIG_CMD_PING
+
+
+#define CONFIG_BOARD_EARLY_INIT_F 1
+#define CONFIG_MISC_INIT_R
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CONFIG_SYS_LONGHELP /* undef to save memory */
+#define CONFIG_SYS_PROMPT "xtc> " /* Monitor Command Prompt */
+
+#define CONFIG_SYS_HUSH_PARSER 1
+
+#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_MEMTEST_START 0x0300000 /* memtest works on */
+#define CONFIG_SYS_MEMTEST_END 0x0700000 /* 3 ... 7 MB in DRAM */
+
+#define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */
+
+/*
+ * 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 0xFF000000
+
+/*-----------------------------------------------------------------------
+ * 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 0x3000 /* 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_SDRAM_BASE 0x00000000
+#define CONFIG_SYS_FLASH_BASE 0x40000000
+#if defined(DEBUG)
+#define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
+#else
+#define CONFIG_SYS_MONITOR_LEN (192 << 10) /* Reserve 192 kB for Monitor */
+#endif
+
+/* yes this is weird, I know :) */
+#define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_FLASH_BASE | 0x00F00000)
+#define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
+
+#define CONFIG_SYS_RESET_ADDRESS 0x80000000
+
+/*
+ * 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 */
+
+/*-----------------------------------------------------------------------
+ * FLASH organization
+ */
+#define CONFIG_ENV_IS_IN_FLASH 1
+#define CONFIG_ENV_SECT_SIZE 0x10000
+
+#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0x00000000)
+#define CONFIG_ENV_OFFSET 0
+#define CONFIG_ENV_SIZE 0x4000
+
+#define CONFIG_ENV_ADDR_REDUND (CONFIG_SYS_FLASH_BASE + 0x00010000)
+#define CONFIG_ENV_OFFSET_REDUND 0
+#define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE
+
+#define CONFIG_SYS_FLASH_CFI 1
+#define CONFIG_FLASH_CFI_DRIVER 1
+#undef CONFIG_SYS_FLASH_USE_BUFFER_WRITE /* use buffered writes (20x faster) */
+#define CONFIG_SYS_MAX_FLASH_SECT 128 /* max number of sectors on one chip */
+#define CONFIG_SYS_MAX_FLASH_BANKS 2 /* max number of memory banks */
+
+#define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE + 0x2000000 }
+
+#define CONFIG_SYS_FLASH_PROTECTION
+
+/*-----------------------------------------------------------------------
+ * 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
+
+/*-----------------------------------------------------------------------
+ * 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_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01 | SIUMCR_FRC | SIUMCR_GB5E)
+
+/*-----------------------------------------------------------------------
+ * 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)
+
+/*-----------------------------------------------------------------------
+ * RTCSC - Real-Time Clock Status and Control Register 11-27
+ *-----------------------------------------------------------------------
+ */
+#define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
+
+/*-----------------------------------------------------------------------
+ * PISCR - Periodic Interrupt Status and Control 11-31
+ *-----------------------------------------------------------------------
+ * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
+ */
+#define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF)
+
+/*-----------------------------------------------------------------------
+ * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
+ *-----------------------------------------------------------------------
+ * Reset PLL lock status sticky bit, timer expired status bit and timer
+ * interrupt status bit
+ *
+ */
+
+#if CONFIG_XIN == 10000000
+
+#if MPC8XX_HZ == 50000000
+#define CONFIG_SYS_PLPRCR ((0 << PLPRCR_MFN_SHIFT) | (0 << PLPRCR_MFD_SHIFT) | \
+ (1 << PLPRCR_S_SHIFT) | (10 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \
+ PLPRCR_TEXPS)
+#elif MPC8XX_HZ == 66666666
+#define CONFIG_SYS_PLPRCR ((1 << PLPRCR_MFN_SHIFT) | (2 << PLPRCR_MFD_SHIFT) | \
+ (1 << PLPRCR_S_SHIFT) | (13 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \
+ PLPRCR_TEXPS)
+#else
+#error unsupported CPU freq for XIN = 10MHz
+#endif
+#else
+#error unsupported freq for XIN (must be 10MHz)
+#endif
+
+
+/*
+ *-----------------------------------------------------------------------
+ * 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
+ *
+ * Note: When TBS == 0 the timebase is independent of current cpu clock.
+ */
+
+#define SCCR_MASK SCCR_EBDF11
+#if MPC8XX_HZ > 66666666
+#define CONFIG_SYS_SCCR (/* SCCR_TBS | */ SCCR_CRQEN | \
+ SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
+ SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
+ SCCR_DFALCD00 | SCCR_EBDF01)
+#else
+#define CONFIG_SYS_SCCR (/* SCCR_TBS | */ SCCR_CRQEN | \
+ SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
+ SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
+ SCCR_DFALCD00)
+#endif
+
+/*-----------------------------------------------------------------------
+ *
+ *-----------------------------------------------------------------------
+ *
+ */
+/*#define CONFIG_SYS_DER 0x2002000F*/
+#define CONFIG_SYS_DER 0
+
+/*
+ * Init Memory Controller:
+ *
+ * BR0/1 and OR0/1 (FLASH)
+ */
+
+#define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
+#define FLASH_BASE1_PRELIM 0x42000000 /* FLASH bank #1 */
+
+/* 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 FLASH_BANK_MAX_SIZE 0x01000000 /* max size per chip */
+
+#define CONFIG_SYS_REMAP_OR_AM 0x80000000
+#define CONFIG_SYS_PRELIM_OR_AM (0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1))
+
+/* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */
+#define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM | OR_BI | OR_SCY_5_CLK | OR_TRLX)
+
+#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_PS_16 | BR_V )
+
+#define CONFIG_SYS_OR1_PRELIM ((0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1)) | CONFIG_SYS_OR_TIMING_FLASH)
+#define CONFIG_SYS_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )
+
+/*
+ * BR4 and OR4 (SDRAM)
+ *
+ */
+#define SDRAM_BASE1_PRELIM 0x00000000 /* SDRAM bank #0 */
+#define SDRAM_MAX_SIZE (256 << 20) /* max 256MB per bank */
+
+/* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
+#define CONFIG_SYS_OR_TIMING_SDRAM (OR_CSNT_SAM | OR_G5LS)
+
+#define CONFIG_SYS_OR4_PRELIM ((0xFFFFFFFFLU & ~(SDRAM_MAX_SIZE - 1)) | CONFIG_SYS_OR_TIMING_SDRAM)
+#define CONFIG_SYS_BR4_PRELIM ((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_PS_32 | BR_V)
+
+/*
+ * Memory Periodic Timer Prescaler
+ */
+
+/*
+ * Memory Periodic Timer Prescaler
+ *
+ * The Divider for PTA (refresh timer) configuration is based on an
+ * example SDRAM configuration (64 MBit, one bank). The adjustment to
+ * the number of chip selects (NCS) and the actually needed refresh
+ * rate is done by setting MPTPR.
+ *
+ * PTA is calculated from
+ * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
+ *
+ * gclk CPU clock (not bus clock!)
+ * Trefresh Refresh cycle * 4 (four word bursts used)
+ *
+ * 4096 Rows from SDRAM example configuration
+ * 1000 factor s -> ms
+ * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
+ * 4 Number of refresh cycles per period
+ * 64 Refresh cycle in ms per number of rows
+ * --------------------------------------------
+ * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
+ *
+ * 50 MHz => 50.000.000 / Divider = 98
+ * 66 Mhz => 66.000.000 / Divider = 129
+ * 80 Mhz => 80.000.000 / Divider = 156
+ */
+
+#define CONFIG_SYS_MAMR_PTA 234
+
+/*
+ * For 16 MBit, refresh rates could be 31.3 us
+ * (= 64 ms / 2K = 125 / quad bursts).
+ * For a simpler initialization, 15.6 us is used instead.
+ *
+ * #define CONFIG_SYS_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
+ * #define CONFIG_SYS_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
+ */
+#define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
+#define CONFIG_SYS_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
+
+/* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
+#define CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
+#define CONFIG_SYS_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
+
+/*
+ * MAMR settings for SDRAM
+ */
+
+/* 8 column SDRAM */
+#define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
+ MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
+ MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
+
+/* 9 column SDRAM */
+#define CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
+ MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
+ MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
+
+#define CONFIG_LAST_STAGE_INIT /* needed to reset the damn phys */
+
+/****************************************************************/
+
+#define NAND_SIZE 0x00010000 /* 64K */
+#define NAND_BASE 0xF1000000
+
+/*****************************************************************************/
+
+#define CONFIG_SYS_DIRECT_FLASH_TFTP
+
+/*****************************************************************************/
+
+/* Status Leds are on the MODCK pins, which become the PCMCIA PGCRB,
+ * CxOE and CxRESET. We use the CxOE.
+ */
+#define STATUS_LED_BIT 0x00000080 /* bit 24 */
+
+#define STATUS_LED_PERIOD (CONFIG_SYS_HZ / 2)
+#define STATUS_LED_STATE STATUS_LED_BLINKING
+
+#define STATUS_LED_ACTIVE 0 /* LED on for bit == 0 */
+#define STATUS_LED_BOOT 0 /* LED 0 used for boot status */
+
+#ifndef __ASSEMBLY__
+
+/* LEDs */
+
+/* led_id_t is unsigned int mask */
+typedef unsigned int led_id_t;
+
+#define __led_toggle(_msk) \
+ do { \
+ ((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb ^= (_msk); \
+ } while(0)
+
+#define __led_set(_msk, _st) \
+ do { \
+ if ((_st)) \
+ ((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb |= (_msk); \
+ else \
+ ((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb &= ~(_msk); \
+ } while(0)
+
+#define __led_init(msk, st) __led_set(msk, st)
+
+#endif
+
+/******************************************************************************/
+
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV 1
+#define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE 1
+#define CONFIG_SYS_CONSOLE_ENV_OVERWRITE 1
+
+/******************************************************************************/
+
+/* use board specific hardware */
+#undef CONFIG_WATCHDOG /* watchdog disabled */
+#define CONFIG_HW_WATCHDOG
+
+/*****************************************************************************/
+
+#define CONFIG_AUTO_COMPLETE 1
+#define CONFIG_CRC32_VERIFY 1
+#define CONFIG_HUSH_OLD_PARSER_COMPATIBLE 1
+
+/*****************************************************************************/
+
+/* pass open firmware flattened device tree */
+#define CONFIG_OF_LIBFDT 1
+
+#define OF_TBCLK (MPC8XX_HZ / 16)
+
+#endif /* __CONFIG_H */
Code Review / kvmfornfv.git / blobdiff