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baytrail: I2C: Add config data to ACPI Device

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The linux kernel designware i2c driver supports configuring
HCNT/LCNT and SDA Hold Time for both standard and fast mode.
These have hardcoded defaults when the controller is in PCI
mode but it uses zero if nothign is defined in ACPI.

This adds the same default values that are in the kernel for
the controllers in PCI mode in magic packages that are read
by the kernel.

BUG=chrome-os-partner:24380
BRANCH=baytrail
TEST=build and boot on rambi

Change-Id: I249b0a217170c7189d633ad97d91361578a1838f
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/184922
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Duncan Laurie 2014-02-04 10:05:46 -08:00 • committed by chrome-internal-fetch
commit ffb73af007
1 changed files with 42 additions and 0 deletions
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42
src/soc/intel/baytrail/acpi/lpss.asl
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@ -89,6 +89,12 @@ Device (I2C1)
Name (_UID, 1)
Name (_DDN, "I2C Controller #1")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (RBUF, ResourceTemplate()
{
Memory32Fixed (ReadWrite, 0, 0x1000, BAR0)
@ -142,6 +148,12 @@ Device (I2C2)
Name (_UID, 2)
Name (_DDN, "I2C Controller #2")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (RBUF, ResourceTemplate()
{
Memory32Fixed (ReadWrite, 0, 0x1000, BAR0)
@ -195,6 +207,12 @@ Device (I2C3)
Name (_UID, 3)
Name (_DDN, "I2C Controller #3")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (RBUF, ResourceTemplate()
{
Memory32Fixed (ReadWrite, 0, 0x1000, BAR0)
@ -248,6 +266,12 @@ Device (I2C4)
Name (_UID, 4)
Name (_DDN, "I2C Controller #4")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (RBUF, ResourceTemplate()
{
Memory32Fixed (ReadWrite, 0, 0x1000, BAR0)
@ -301,6 +325,12 @@ Device (I2C5)
Name (_UID, 5)
Name (_DDN, "I2C Controller #5")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (RBUF, ResourceTemplate()
{
Memory32Fixed (ReadWrite, 0, 0x1000, BAR0)
@ -354,6 +384,12 @@ Device (I2C6)
Name (_UID, 6)
Name (_DDN, "I2C Controller #6")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (RBUF, ResourceTemplate()
{
Memory32Fixed (ReadWrite, 0, 0x1000, BAR0)
@ -407,6 +443,12 @@ Device (I2C7)
Name (_UID, 7)
Name (_DDN, "I2C Controller #7")
/* Standard Mode: HCNT, LCNT, SDA Hold Time */
Name (SSCN, Package () { 0x200, 0x200, 0x6 })
/* Fast Mode: HCNT, LCNT, SDA Hold Time */
Name (FMCN, Package () { 0x55, 0x99, 0x6 })
Name (RBUF, ResourceTemplate()
{
Memory32Fixed (ReadWrite, 0, 0x1000, BAR0)