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authorYoshihiro Furudera <fj5100bi@fujitsu.com>2024-10-24 07:15:53 +0000
committerWolfram Sang <wsa+renesas@sang-engineering.com>2024-11-24 16:03:50 +0100
commit7c3a833a1da6ab1e29fcb4740edf770aea816c6f (patch)
tree65be0628831fa2217b8ef960beee2400e82a05bd /drivers
parent50b9d43e6ceaaaa59c54c95aca5f8dfc862fe48e (diff)
i2c: designware: Add ACPI HID for DWAPB I2C controller on FUJITSU-MONAKA
Enable DWAPB I2C controller support on FUJITSU-MONAKA. This will be used in the FUJITSU-MONAKA server scheduled for shipment in 2027. The DSDT information obtained when verified using an in-house simulator is presented below. Device (SMB0) { Name (_HID, "FUJI200B") // _HID: Hardware ID Name (_UID, Zero) // _UID: Unique ID ... Name (_CRS, ResourceTemplate () { Memory32Fixed (ReadWrite, 0x2A4B0000, // Address Base 0x00010000, // Address Length ) Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive, ,, ) { 0x00000159, } }) ... } The expression SMB0 is used to indicate SMBus HC#0, a string of up to four characters. Created the SMB0 object according to the following specifications: ACPI Specification 13.2. Accessing the SMBus from ASL Code https://uefi.org/htmlspecs/ACPI_Spec_6_4_html/13_ACPI_System_Mgmt_Bus_Interface_Spec/accessing-the-smbus-from-asl-code.html IPMI Specification Example 4: SSIF Interface(P574) https://www.intel.co.jp/content/www/jp/ja/products/docs/servers/ipmi/ipmi-second-gen-interface-spec-v2-rev1-1.html Signed-off-by: Yoshihiro Furudera <fj5100bi@fujitsu.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/i2c/busses/i2c-designware-platdrv.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 1643cad6489c..3e12aab6bf2d 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -349,6 +349,7 @@ static const struct acpi_device_id dw_i2c_acpi_match[] = {
{ "AMDI0019", ACCESS_INTR_MASK | ARBITRATION_SEMAPHORE },
{ "AMDI0510", 0 },
{ "APMC0D0F", 0 },
+ { "FUJI200B", 0 },
{ "HISI02A1", 0 },
{ "HISI02A2", 0 },
{ "HISI02A3", 0 },