Add a header file, setup.h, which copy from Linux source code, this file contain structures are used to pass initialisation parameters to Linux. Enable this function on adp-ag101/adp-ag101p target
Signed-off-by: Kuan-Yu Kuo ken.kuoky@gmail.com Cc: Macpaul Lin macpaul@gmail.com --- arch/nds32/include/asm/setup.h | 192 ++++++++++++++++++++++++++++++++++++++++ include/common.h | 1 + include/configs/adp-ag101.h | 7 ++ include/configs/adp-ag101p.h | 7 ++ 4 files changed, 207 insertions(+) create mode 100644 arch/nds32/include/asm/setup.h
diff --git a/arch/nds32/include/asm/setup.h b/arch/nds32/include/asm/setup.h new file mode 100644 index 0000000..0a14ea0 --- /dev/null +++ b/arch/nds32/include/asm/setup.h @@ -0,0 +1,192 @@ +/* + * linux/arch/nds32/include/asm/setup.h + * + * Copyright (C) 1997-1999 Russell King + * Copyright (C) 2008 Andes Technology Corporation + * Copyright (C) 2013 Ken Kuo (ken_kuo@andestech.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Structure passed to kernel to tell it about the + * hardware it's running on. See Documentation/arm/Setup + * for more info. + */ +#ifndef __ASMNDS32_SETUP_H +#define __ASMNDS32_SETUP_H + +#define COMMAND_LINE_SIZE 256 + +/* The list ends with an ATAG_NONE node. */ +#define ATAG_NONE 0x00000000 + +struct tag_header { + u32 size; + u32 tag; +}; + +/* The list must start with an ATAG_CORE node */ +#define ATAG_CORE 0x54410001 + +struct tag_core { + u32 flags; /* bit 0 = read-only */ + u32 pagesize; + u32 rootdev; +}; + +/* it is allowed to have multiple ATAG_MEM nodes */ +#define ATAG_MEM 0x54410002 + +struct tag_mem32 { + u32 size; + u32 start; /* physical start address */ +}; + +/* VGA text type displays */ +#define ATAG_VIDEOTEXT 0x54410003 + +struct tag_videotext { + u8 x; + u8 y; + u16 video_page; + u8 video_mode; + u8 video_cols; + u16 video_ega_bx; + u8 video_lines; + u8 video_isvga; + u16 video_points; +}; + +/* describes how the ramdisk will be used in kernel */ +#define ATAG_RAMDISK 0x54410004 + +struct tag_ramdisk { + u32 flags; /* bit 0 = load, bit 1 = prompt */ + u32 size; /* decompressed ramdisk size in _kilo_ bytes */ + u32 start; /* starting block of floppy-based RAM disk image */ +}; + +/* + * this one accidentally used virtual addresses - as such, + * it's deprecated. + * describes where the compressed ramdisk image lives (virtual address) + */ +#define ATAG_INITRD 0x54410005 + +/* describes where the compressed ramdisk image lives (physical address) */ +#define ATAG_INITRD2 0x54420005 + +struct tag_initrd { + u32 start; /* physical start address */ + u32 size; /* size of compressed ramdisk image in bytes */ +}; + +/* board serial number. "64 bits should be enough for everybody" */ +#define ATAG_SERIAL 0x54410006 + +struct tag_serialnr { + u32 low; + u32 high; +}; + +/* board revision */ +#define ATAG_REVISION 0x54410007 + +struct tag_revision { + u32 rev; +}; + +/* initial values for vesafb-type framebuffers. see struct screen_info + * in include/linux/tty.h + */ +#define ATAG_VIDEOLFB 0x54410008 + +struct tag_videolfb { + u16 lfb_width; + u16 lfb_height; + u16 lfb_depth; + u16 lfb_linelength; + u32 lfb_base; + u32 lfb_size; + u8 red_size; + u8 red_pos; + u8 green_size; + u8 green_pos; + u8 blue_size; + u8 blue_pos; + u8 rsvd_size; + u8 rsvd_pos; +}; + +/* command line: \0 terminated string */ +#define ATAG_CMDLINE 0x54410009 + +struct tag_cmdline { + char cmdline[COMMAND_LINE_SIZE]; +}; + +struct tag { + struct tag_header hdr; + union { + struct tag_core core; + struct tag_mem32 mem; + struct tag_videotext videotext; + struct tag_ramdisk ramdisk; + struct tag_initrd initrd; + struct tag_serialnr serialnr; + struct tag_revision revision; + struct tag_videolfb videolfb; + struct tag_cmdline cmdline; + } u; +}; + +struct tagtable { + u32 tag; + int (*parse)(const struct tag *); +}; + +#define tag_member_present(tag, member) \ + ((unsigned long)(&((struct tag *)0L)->member + 1) \ + <= (tag)->hdr.size * 4) + +#define tag_next(t) ((struct tag *)((u32 *)(t) + (t)->hdr.size)) +#define tag_size(type) ((sizeof(struct tag_header) + sizeof(struct type)) >> 2) + +#define for_each_tag(t, base) \ + for (t = base; t->hdr.size; t = tag_next(t)) + +#ifdef __KERNEL__ + +#define __tag __used __attribute__((__section__(".taglist"))) +#define __tagtable(tag, fn) \ +static struct tagtable __tagtable_##fn __tag = { tag, fn } + +/* + * Memory map description + */ +#define NR_BANKS 8 + +struct meminfo { + int nr_banks; + struct { + unsigned long start; + unsigned long size; + int node; + } bank[NR_BANKS]; +}; + +/* + * Early command line parameters. + */ +struct early_params { + const char *arg; + void (*fn)(char **p); +}; + +#define __early_param(name, fn) \ +static struct early_params __early_##fn __used \ +__attribute__((__section__("__early_param"))) = { name, fn } + +#endif +#endif diff --git a/include/common.h b/include/common.h index 126891d..e130785 100644 --- a/include/common.h +++ b/include/common.h @@ -421,6 +421,7 @@ static inline int setenv_addr(const char *varname, const void *addr) #endif #ifdef CONFIG_NDS32 # include <asm/mach-types.h> +# include <asm/setup.h> # include <asm/u-boot-nds32.h> #endif /* CONFIG_NDS32 */ #ifdef CONFIG_MIPS diff --git a/include/configs/adp-ag101.h b/include/configs/adp-ag101.h index 85dbad2..1c380ea 100644 --- a/include/configs/adp-ag101.h +++ b/include/configs/adp-ag101.h @@ -35,6 +35,13 @@
#define CONFIG_SKIP_LOWLEVEL_INIT
+/* + * Definitions related to passing arguments to kernel. + */ +#define CONFIG_CMDLINE_TAG /* send commandline to Kernel */ +#define CONFIG_SETUP_MEMORY_TAGS /* send memory definition to kernel */ +#define CONFIG_INITRD_TAG /* send initrd params */ + #ifndef CONFIG_SKIP_LOWLEVEL_INIT #define CONFIG_MEM_REMAP #endif diff --git a/include/configs/adp-ag101p.h b/include/configs/adp-ag101p.h index 6085208..8748134 100644 --- a/include/configs/adp-ag101p.h +++ b/include/configs/adp-ag101p.h @@ -35,6 +35,13 @@
#define CONFIG_SKIP_LOWLEVEL_INIT
+/* + * Definitions related to passing arguments to kernel. + */ +#define CONFIG_CMDLINE_TAG /* send commandline to Kernel */ +#define CONFIG_SETUP_MEMORY_TAGS /* send memory definition to kernel */ +#define CONFIG_INITRD_TAG /* send initrd params */ + #ifndef CONFIG_SKIP_LOWLEVEL_INIT #define CONFIG_MEM_REMAP #endif