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Braswell: add code to support customization of I2C data hold time 

The I2C data hold time can be vary on different boards/devices.
So, it needs to be customized by boards/devices

TEST=compile ok and check IC_SDA_HOLD is changed if the hold time
     is defined in onboard.h

Original-Reviewed-on: https://chromium-review.googlesource.com/308623
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>

Change-Id: I66c799de400670916cebbcb529d4f59d5b0f081b
Signed-off-by: Kane Chen <kane.chen@intel.com>
Reviewed-on: https://review.coreboot.org/12740
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Kane Chen 2015-10-26 13:02:33 +08:00 committed by Martin Roth
parent a1b3547f0f
commit 54093e4fce
1 changed files with 45 additions and 14 deletions
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59
src/soc/intel/braswell/acpi/lpss.asl
View File

@ -14,6 +14,37 @@
* GNU General Public License for more details.
*/
/* The below definitions are used for customization
* Some boards/devices may need different data hold time
*/
#ifndef BOARD_I2C1_DATA_HOLD_TIME
#define BOARD_I2C1_DATA_HOLD_TIME 6
#endif
#ifndef BOARD_I2C2_DATA_HOLD_TIME
#define BOARD_I2C2_DATA_HOLD_TIME 6
#endif
#ifndef BOARD_I2C3_DATA_HOLD_TIME
#define BOARD_I2C3_DATA_HOLD_TIME 6
#endif
#ifndef BOARD_I2C4_DATA_HOLD_TIME
#define BOARD_I2C4_DATA_HOLD_TIME 6
#endif
#ifndef BOARD_I2C5_DATA_HOLD_TIME
#define BOARD_I2C5_DATA_HOLD_TIME 6
#endif
#ifndef BOARD_I2C6_DATA_HOLD_TIME
#define BOARD_I2C6_DATA_HOLD_TIME 6
#endif
#ifndef BOARD_I2C7_DATA_HOLD_TIME
#define BOARD_I2C7_DATA_HOLD_TIME 6
#endif
Device (SDM1)
{
Name (_HID, "INTL9C60")
@ -85,10 +116,10 @@ Device (I2C1)
Name (_DDN, "I2C Controller #1")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
Name (SSCN, Package () { 0x200, 0x200, BOARD_I2C1_DATA_HOLD_TIME })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (FMCN, Package () { 0x55, 0x99, BOARD_I2C1_DATA_HOLD_TIME })
Name (RBUF, ResourceTemplate()
{
@ -144,10 +175,10 @@ Device (I2C2)
Name (_DDN, "I2C Controller #2")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
Name (SSCN, Package () { 0x200, 0x200, BOARD_I2C2_DATA_HOLD_TIME })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (FMCN, Package () { 0x55, 0x99, BOARD_I2C2_DATA_HOLD_TIME })
Name (RBUF, ResourceTemplate()
{
@ -203,10 +234,10 @@ Device (I2C3)
Name (_DDN, "I2C Controller #3")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
Name (SSCN, Package () { 0x200, 0x200, BOARD_I2C3_DATA_HOLD_TIME })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (FMCN, Package () { 0x55, 0x99, BOARD_I2C3_DATA_HOLD_TIME })
Name (RBUF, ResourceTemplate()
{
@ -262,10 +293,10 @@ Device (I2C4)
Name (_DDN, "I2C Controller #4")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
Name (SSCN, Package () { 0x200, 0x200, BOARD_I2C4_DATA_HOLD_TIME })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (FMCN, Package () { 0x55, 0x99, BOARD_I2C4_DATA_HOLD_TIME })
Name (RBUF, ResourceTemplate()
{
@ -321,10 +352,10 @@ Device (I2C5)
Name (_DDN, "I2C Controller #5")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
Name (SSCN, Package () { 0x200, 0x200, BOARD_I2C5_DATA_HOLD_TIME })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (FMCN, Package () { 0x55, 0x99, BOARD_I2C5_DATA_HOLD_TIME })
Name (RBUF, ResourceTemplate()
{
@ -380,10 +411,10 @@ Device (I2C6)
Name (_DDN, "I2C Controller #6")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
Name (SSCN, Package () { 0x200, 0x200, BOARD_I2C6_DATA_HOLD_TIME })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (FMCN, Package () { 0x55, 0x99, BOARD_I2C6_DATA_HOLD_TIME })
Name (RBUF, ResourceTemplate()
{
@ -439,10 +470,10 @@ Device (I2C7)
Name (_DDN, "I2C Controller #7")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
Name (SSCN, Package () { 0x200, 0x200, BOARD_I2C7_DATA_HOLD_TIME })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (FMCN, Package () { 0x55, 0x99, BOARD_I2C7_DATA_HOLD_TIME })
Name (RBUF, ResourceTemplate()
{