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add-per-board-init-change-qi.patch

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Giant patch:

 - renames everything from kboot to qi

 - changes filenames accordingly in several places

 - fixes the linker script so stuff that does not execute
   from steppingstone context has real linked addresses
   in the relocated region, it means all code and pointers
   work now outside first 4KBytes

 - adds src/gta02/gta02.c to contain board-specific init and
   other functions

 - adds sophisticated structs to define most features in the
   board-specific files, including board type detection,
   board revision detection, and multiple kernel source
   definition (NAND, SD FAT, SD ext2, etc), including auto
   sequencing of trying the kernel sources in order (filesystems
   and partition support not done yet)

 - GTA02 detects itself by NOR presence and reports A5 / A6

 - commandlines for kernel also come from board-specific
   kernel source definitions so correct kernel commandlines
   are provided depending on boot device -- on GTA02 now
   boots NAND kernel into NAND jffs2 filesystem

 - CRC32 is checked on loaded kernel image to make sure we
   know about corruption in bootloader

Signed-off-by: Andy Green <andy@openmoko.com>
This commit is contained in:
Andy Green
2008-11-28 10:16:36 +00:00
committed by Andy Green
parent 8cff2ca836
commit 4a8bada671
17 changed files with 619 additions and 294 deletions
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47
qiboot/include/qi.h
View File

@@ -30,6 +30,51 @@
#define u8 unsigned char
typedef unsigned int uint32_t;
enum filesystem {
FS_RAW,
FS_FAT,
FS_EXT2
};
/* describes a source for getting kernel image */
struct kernel_source {
const char *name; /* NULL name means invalid */
int (*block_init)(void);
int (*block_read)(unsigned char * buf, unsigned long byte_start,
int count_bytes);
int partition_index; /* -1 means no partition table */
int offset_if_no_partition; /* used if partition_index is -1 */
enum filesystem filesystem;
const char * commandline;
};
/* describes a board variant, eg, PCB revision */
struct board_variant {
const char * name;
int machine_revision; /* passed in revision tag to linux */
};
/* describes a "board", ie, a device like GTA02 including revisions */
struct board_api {
const char * name;
int debug_serial_port;
int linux_machine_id;
unsigned long linux_mem_start;
unsigned long linux_mem_size;
unsigned long linux_tag_placement;
const struct board_variant const * (*get_board_variant)(void);
int (*is_this_board)(void);
void (*port_init)(void);
struct kernel_source kernel_source[8];
};
/* this is the board we are running on */
extern struct board_api const * this_board;
int printk(const char *fmt, ...);
int vsprintf(char *buf, const char *fmt, va_list args);
int puts(const char *string);
@@ -37,6 +82,8 @@ void printhex(unsigned char v);
void print32(unsigned int u);
void hexdump(unsigned char *start, int len);
unsigned int _ntohl(unsigned int n);
unsigned long crc32(unsigned long crc, const unsigned char *buf,
unsigned int len);
#endif