--- /dev/null
+/*
+ * Board functions for Sysam AMCORE (MCF5307 based) board
+ *
+ * (C) Copyright 2015 Angelo Dureghello <angelo@sysam.it>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * This file copies memory testdram() from sandburst/common/sb_common.c
+ */
+
+#include <common.h>
+#include <asm/immap.h>
+#include <asm/io.h>
+
+void init_lcd(void)
+{
+ /* setup for possible K0108 lcd connected on the parallel port */
+ sim_t *sim = (sim_t *)(MMAP_SIM);
+
+ out_be16(&sim->par, 0x300);
+
+ gpio_t *gpio = (gpio_t *)(MMAP_GPIO);
+
+ out_be16(&gpio->paddr, 0xfcff);
+ out_be16(&gpio->padat, 0x0c00);
+}
+
+int checkboard(void)
+{
+ puts("Board: ");
+ puts("AMCORE v.001(alpha)\n");
+
+ init_lcd();
+
+ return 0;
+}
+
+/*
+ * in initdram we are here executing from flash
+ * case 1:
+ * is with no ACR/flash cache enabled
+ * nop = 40ns (scope measured)
+ */
+void fudelay(int usec)
+{
+ while (usec--)
+ asm volatile ("nop");
+}
+
+phys_size_t initdram(int board_type)
+{
+ u32 dramsize, RC;
+
+ sdramctrl_t *dc = (sdramctrl_t *)(MMAP_DRAMC);
+
+ /*
+ * SDRAM MT48LC4M32B2 details
+ * Memory block 0: 16 MB of SDRAM at address $00000000
+ * Port size: 32-bit port
+ *
+ * Memory block 0 wired as follows:
+ * CPU : A15 A14 A13 A12 A11 A10 A9 A17 A18 A19 A20 A21 A22 A23
+ * SDRAM : A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 BA0 BA1
+ *
+ * Ensure that there is a delay of at least 100 microseconds from
+ * processor reset to the following code so that the SDRAM is ready
+ * for commands.
+ */
+ fudelay(100);
+
+ /*
+ * DCR
+ * set proper RC as per specification
+ */
+ RC = (CONFIG_SYS_CPU_CLK / 1000000) >> 1;
+ RC = (RC * 15) >> 4;
+
+ /* 0x8000 is the faster option */
+ out_be16(&dc->dcr, 0x8200 | RC);
+
+ /*
+ * DACR0, page mode continuous, CMD on A20 0x0300
+ */
+ out_be32(&dc->dacr0, 0x00003304);
+
+ dramsize = ((CONFIG_SYS_SDRAM_SIZE)-1) & 0xfffc0000;
+ out_be32(&dc->dmr0, dramsize|1);
+
+ /* issue a PRECHARGE ALL */
+ out_be32(&dc->dacr0, 0x0000330c);
+ out_be32((u32 *)0x00000004, 0xbeaddeed);
+ /* issue AUTOREFRESH */
+ out_be32(&dc->dacr0, 0x0000b304);
+ /* let refresh occour */
+ fudelay(1);
+
+ out_be32(&dc->dacr0, 0x0000b344);
+ out_be32((u32 *)0x00000c00, 0xbeaddeed);
+
+ return get_ram_size(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_SDRAM_SIZE);
+}
--- /dev/null
+/*
+ * Linker script for Sysam AMCORE board
+ *
+ * (C) Copyright 2014 Angelo Dureghello <angelo@sysam.it>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+OUTPUT_ARCH(m68k)
+
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ .text :
+ {
+ arch/m68k/cpu/mcf530x/start.o (.text)
+
+ . = DEFINED(env_offset) ? env_offset : .;
+ common/env_embedded.o (.text)
+
+ *(.text)
+ }
+ _etext = .;
+ PROVIDE (etext = .);
+ .rodata :
+ {
+ *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
+ }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x00FF) & 0xFFFFFF00;
+ _erotext = .;
+ PROVIDE (erotext = .);
+
+ .reloc :
+ {
+ __got_start = .;
+ KEEP(*(.got))
+ __got_end = .;
+ _GOT2_TABLE_ = .;
+ KEEP(*(.got2))
+ _FIXUP_TABLE_ = .;
+ KEEP(*(.fixup))
+ }
+ __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+ __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+ .data :
+ {
+ *(.data)
+ *(.sdata)
+ }
+ _edata = .;
+ PROVIDE (edata = .);
+
+ . = .;
+
+ . = ALIGN(4);
+ .u_boot_list : {
+ KEEP(*(SORT(.u_boot_list*)));
+ }
+
+ . = .;
+ __start___ex_table = .;
+ __ex_table : { *(__ex_table) }
+ __stop___ex_table = .;
+
+ . = ALIGN(256);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(256);
+ __init_end = .;
+
+ __bss_start = .;
+ .bss (NOLOAD) :
+ {
+ _sbss = .;
+ *(.sbss*)
+ *(.bss*)
+ *(COMMON)
+ . = ALIGN(4);
+ _ebss = .;
+ }
+ __bss_end = . ;
+ PROVIDE (end = .);
+}
--- /dev/null
+/*
+ * Sysam AMCORE board configuration
+ *
+ * (C) Copyright 2015 Angelo Dureghello <angelo@sysam.it>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __AMCORE_CONFIG_H
+#define __AMCORE_CONFIG_H
+
+#define CONFIG_AMCORE
+#define CONFIG_HOSTNAME AMCORE
+
+#define CONFIG_SYS_GENERIC_BOARD
+
+#define CONFIG_MCF530x
+#define CONFIG_M5307
+
+#define CONFIG_MCFTMR
+#define CONFIG_MCFUART
+#define CONFIG_SYS_UART_PORT 0
+#define CONFIG_BAUDRATE 115200
+#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
+
+#define CONFIG_BOOTDELAY 1
+#define CONFIG_BOOTCOMMAND "bootm ffc20000"
+
+#include <config_cmd_default.h>
+#undef CONFIG_CMD_AES
+#undef CONFIG_CMD_BOOTD
+#undef CONFIG_CMD_NET
+#undef CONFIG_CMD_NFS
+#undef CONFIG_CMD_FPGA
+#undef CONFIG_CMD_XIMG
+#define CONFIG_CMD_CACHE
+#define CONFIG_CMD_TIMER
+#define CONFIG_CMD_DIAG
+
+#define CONFIG_SYS_PROMPT "amcore $ "
+/* undef to save memory */
+#undef CONFIG_SYS_LONGHELP
+
+#if defined(CONFIG_CMD_KGDB)
+/* Console I/O buff. size */
+#define CONFIG_SYS_CBSIZE 1024
+#else
+#define CONFIG_SYS_CBSIZE 256
+#endif
+/* Print buffer size */
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
+ sizeof(CONFIG_SYS_PROMPT)+16)
+/* max number of command args */
+#define CONFIG_SYS_MAXARGS 16
+/* Boot argument buffer size */
+#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
+
+#define CONFIG_SYS_CONSOLE_INFO_QUIET 1 /* no console @ startup */
+#define CONFIG_AUTO_COMPLETE 1 /* add autocompletion support */
+#define CONFIG_LOOPW 1 /* enable loopw command */
+#define CONFIG_MX_CYCLIC 1 /* enable mdc/mwc commands */
+
+#define CONFIG_SYS_LOAD_ADDR 0x20000 /* default load address */
+
+#define CONFIG_SYS_MEMTEST_START 0x0
+#define CONFIG_SYS_MEMTEST_END 0x1000000
+
+#define CONFIG_SYS_HZ 1000
+
+#define CONFIG_SYS_CLK 45000000
+#define CONFIG_SYS_CPU_CLK (CONFIG_SYS_CLK * 2)
+/* Register Base Addrs */
+#define CONFIG_SYS_MBAR 0x10000000
+/* Definitions for initial stack pointer and data area (in DPRAM) */
+#define CONFIG_SYS_INIT_RAM_ADDR 0x20000000
+/* size of internal SRAM */
+#define CONFIG_SYS_INIT_RAM_SIZE 0x1000
+#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
+
+#define CONFIG_SYS_SDRAM_BASE 0x00000000
+#define CONFIG_SYS_SDRAM_SIZE 0x1000000
+#define CONFIG_SYS_FLASH_BASE 0xffc00000
+#define CONFIG_SYS_MAX_FLASH_BANKS 1
+#define CONFIG_SYS_MAX_FLASH_SECT 1024
+#define CONFIG_SYS_FLASH_ERASE_TOUT 1000
+
+#define CONFIG_SYS_FLASH_CFI
+#define CONFIG_FLASH_CFI_DRIVER
+#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE
+/* amcore design has flash data bytes wired swapped */
+#define CONFIG_SYS_WRITE_SWAPPED_DATA
+/* reserve 128-4KB */
+#define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_FLASH_BASE + 0x400)
+#define CONFIG_SYS_MONITOR_LEN ((128 - 4) * 1024)
+#define CONFIG_SYS_MALLOC_LEN (1 * 1024 * 1024)
+#define CONFIG_SYS_BOOTPARAMS_LEN (64 * 1024)
+
+#define CONFIG_ENV_IS_IN_FLASH 1
+#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + \
+ CONFIG_SYS_MONITOR_LEN)
+#define CONFIG_ENV_SIZE 0x1000
+#define CONFIG_ENV_SECT_SIZE 0x1000
+
+/* memory map space for linux boot data */
+#define CONFIG_SYS_BOOTMAPSZ (8 << 20)
+
+/*
+ * Cache Configuration
+ *
+ * Special 8K version 3 core cache.
+ * This is a single unified instruction/data cache.
+ * sdram - single region - no masks
+ */
+#define CONFIG_SYS_CACHELINE_SIZE 16
+
+#define ICACHE_STATUS (CONFIG_SYS_INIT_RAM_ADDR + \
+ CONFIG_SYS_INIT_RAM_SIZE - 8)
+#define DCACHE_STATUS (CONFIG_SYS_INIT_RAM_ADDR + \
+ CONFIG_SYS_INIT_RAM_SIZE - 4)
+#define CONFIG_SYS_ICACHE_INV (CF_CACR_CINVA)
+#define CONFIG_SYS_CACHE_ACR0 (CF_ACR_CM_WT | CF_ACR_SM_ALL | \
+ CF_ACR_EN)
+#define CONFIG_SYS_CACHE_ICACR (CF_CACR_DCM_P | CF_CACR_ESB | \
+ CF_CACR_EC)
+
+/* CS0 - AMD Flash, address 0xffc00000 */
+#define CONFIG_SYS_CS0_BASE (CONFIG_SYS_FLASH_BASE>>16)
+/* 4MB, AA=0,V=1 C/I BIT for errata */
+#define CONFIG_SYS_CS0_MASK 0x003f0001
+/* WS=10, AA=1, PS=16bit (10) */
+#define CONFIG_SYS_CS0_CTRL 0x1980
+/* CS1 - DM9000 Ethernet Controller, address 0x30000000 */
+#define CONFIG_SYS_CS1_BASE 0x3000
+#define CONFIG_SYS_CS1_MASK 0x00070001
+#define CONFIG_SYS_CS1_CTRL 0x0100
+
+#endif /* __AMCORE_CONFIG_H */
+
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