diff options
| author | Lee Leahy <leroy.p.leahy@intel.com> | 2014-08-29 13:38:59 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-04-04 12:40:29 +0200 |
| commit | 9f5a5c532343fe72753fc507b0f2ef1a26afabd3 (patch) | |
| tree | be1f1b955ce316f24871ec2da4785a2d6e988e9b /src/include | |
| parent | a19a4e1d64ab0dbf531a3fbeb7cdda331a3ed6ca (diff) | |
Add table driven way to add platform specific reg_script routines
Extend lib/reg_script.c to use a platform table to declare
additional platform specific register access routine functions.
REG_SCRIPT_TYPE_PLATFORM_BASE is the starting value for platform
specific register types. Additional register access types may be
defined above this value. The type and access routines are placed
into reg_script_type_table.
The Baytrail type value for IOSF was left the enumeration since it
was already defined and is being used for Braswell.
BRANCH=none
BUG=None
TEST=Use the following steps to test:
1. Build for a Baytrail platform
2. Build for the Samus platform
3. Add a platform_bus_table routine to a platform which returns the
address of an array of reg_script_bus_entry structures and the
number of entries in the array.
Change-Id: Ic99d345c4b067c52b4e9c47e59ed4472a05bc1a5
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: 2d9fecf4287dff6311a81d818603212248f1a248
Original-Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/215645
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Change-Id: I7cd37abc5a08cadb3166d4048f65b919b86ab5db
Original-Reviewed-on: https://chromium-review.googlesource.com/229612
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/9279
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/reg_script.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/include/reg_script.h b/src/include/reg_script.h index 97b4fb00dc..0c0ea01ce5 100644 --- a/src/include/reg_script.h +++ b/src/include/reg_script.h @@ -60,6 +60,10 @@ enum { REG_SCRIPT_TYPE_RES, REG_SCRIPT_TYPE_IOSF, REG_SCRIPT_TYPE_MSR, + + /* Insert other platform independent values above this comment */ + + REG_SCRIPT_TYPE_PLATFORM_BASE = 0x10000 }; enum { @@ -85,6 +89,24 @@ struct reg_script { }; }; +struct reg_script_context { + device_t dev; + struct resource *res; + const struct reg_script *step; +}; + +#ifndef __PRE_RAM__ +struct reg_script_bus_entry { + int 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); + +#endif /* __PRE_RAM */ + /* Internal helper Macros. */ #define _REG_SCRIPT_ENCODE_RAW(cmd_, type_, size_, reg_, \ @@ -271,6 +293,8 @@ struct reg_script { #define REG_RES_POLL32(bar_, reg_, mask_, value_, timeout_) \ REG_SCRIPT_RES(POLL, 32, bar_, reg_, mask_, value_, timeout_) + +#if CONFIG_SOC_INTEL_BAYTRAIL /* * IO Sideband Function */ @@ -290,6 +314,7 @@ struct reg_script { REG_IOSF_RMW(unit_, reg_, 0xffffffff, value_) #define REG_IOSF_POLL(unit_, reg_, mask_, value_, timeout_) \ REG_SCRIPT_IOSF(POLL, unit_, reg_, mask_, value_, timeout_) +#endif /* CONFIG_SOC_INTEL_BAYTRAIL */ /* * CPU Model Specific Register |