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lib/reg_script: Allow multiple independent handlers

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Remove the platform_bus_table routine and replace it with a link time
table.  This allows the handlers to be spread across multiple modules
without any one module knowing about all of the handlers.

Establish number ranges for both the SOC and mainboard.

TEST=Build and run on Galileo Gen2

Change-Id: I0823d443d3352f31ba7fa20845bbf550b585c86f
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/14554
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
This commit is contained in:
Lee Leahy
2016-04-29 17:26:36 -07:00
committed by Leroy P Leahy
parent 6bcbe5749b
commit efcee9fadd
4 changed files with 23 additions and 34 deletions
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14
src/include/reg_script.h
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@ -60,7 +60,9 @@ enum {
/* Insert other platform independent values above this comment */
REG_SCRIPT_TYPE_PLATFORM_BASE = 0x10000
REG_SCRIPT_TYPE_PLATFORM_BASE = 0x10000,
REG_SCRIPT_TYPE_SOC_BASE = REG_SCRIPT_TYPE_PLATFORM_BASE,
REG_SCRIPT_TYPE_MAINBOARD_BASE = 0x20000
};
enum {
@ -92,17 +94,17 @@ struct reg_script_context {
const struct reg_script *step;
};
#ifndef __PRE_RAM__
struct reg_script_bus_entry {
int type;
uint32_t type;
uint64_t (*reg_script_read)(struct reg_script_context *ctx);
void (*reg_script_write)(struct reg_script_context *ctx);
};
/* Get the address and length of the platform bus table */
const struct reg_script_bus_entry *platform_bus_table(size_t *table_entries);
#define REG_SCRIPT_TABLE_ATTRIBUTE __attribute__ ((used,section (".rsbe_init")))
#endif /* __PRE_RAM */
#define REG_SCRIPT_BUS_ENTRY(bus_entry_) \
const struct reg_script_bus_entry *rsbe_ ## bus_entry_ \
REG_SCRIPT_TABLE_ATTRIBUTE = &bus_entry_;
/* Internal helper Macros. */