diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/sysam/amcore/Kconfig | 22 | ||||
| -rw-r--r-- | board/sysam/amcore/MAINTAINERS | 6 | ||||
| -rw-r--r-- | board/sysam/amcore/Makefile | 7 | ||||
| -rw-r--r-- | board/sysam/amcore/amcore.c | 101 | ||||
| -rw-r--r-- | board/sysam/amcore/config.mk | 7 | ||||
| -rw-r--r-- | board/sysam/amcore/u-boot.lds | 87 |
6 files changed, 230 insertions, 0 deletions
diff --git a/board/sysam/amcore/Kconfig b/board/sysam/amcore/Kconfig new file mode 100644 index 0000000..dd9816e --- /dev/null +++ b/board/sysam/amcore/Kconfig @@ -0,0 +1,22 @@ +if TARGET_AMCORE + +config SYS_CPU + string + default "mcf530x" + +config SYS_BOARD + string + default "amcore" + +config SYS_VENDOR + string + default "sysam" + +config SYS_CONFIG_NAME + string + default "amcore" + +endif + + + diff --git a/board/sysam/amcore/MAINTAINERS b/board/sysam/amcore/MAINTAINERS new file mode 100644 index 0000000..fe5dd9b --- /dev/null +++ b/board/sysam/amcore/MAINTAINERS @@ -0,0 +1,6 @@ +AMCORE BOARD +M: Angelo Dureghello <angelo@sysam.it> +S: Maintained +F: board/sysam/amcore/ +F: include/configs/amcore.h +F: configs/amcore_defconfig diff --git a/board/sysam/amcore/Makefile b/board/sysam/amcore/Makefile new file mode 100644 index 0000000..051186f --- /dev/null +++ b/board/sysam/amcore/Makefile @@ -0,0 +1,7 @@ +# +# (C) Copyright 2014 Angelo Dureghello <angelo@sysam.it> +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y = amcore.o diff --git a/board/sysam/amcore/amcore.c b/board/sysam/amcore/amcore.c new file mode 100644 index 0000000..42b7c23 --- /dev/null +++ b/board/sysam/amcore/amcore.c @@ -0,0 +1,101 @@ +/* + * 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); +} diff --git a/board/sysam/amcore/config.mk b/board/sysam/amcore/config.mk new file mode 100644 index 0000000..d01a8bb --- /dev/null +++ b/board/sysam/amcore/config.mk @@ -0,0 +1,7 @@ +# +# (C) Copyright 2014 Angelo Dureghello <angelo@sysam.it> +# +# SPDX-License-Identifier: GPL-2.0+ +# + +CONFIG_SYS_TEXT_BASE = 0xffc00000 diff --git a/board/sysam/amcore/u-boot.lds b/board/sysam/amcore/u-boot.lds new file mode 100644 index 0000000..2f7a241 --- /dev/null +++ b/board/sysam/amcore/u-boot.lds @@ -0,0 +1,87 @@ +/* + * 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 = .); +} |