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| author | aalugore <aalugore@us.ibm.com> | 2016-01-22 13:36:14 -0600 |
|---|---|---|
| committer | Stephen Cprek <smcprek@us.ibm.com> | 2016-04-21 13:51:43 -0500 |
| commit | 4f4f097d65e919bcc8bd5706f50ea0f413b8bfef (patch) | |
| tree | 90030301032f3a87e952e5c161763bab0ad812be /src/include/usr/devicefw | |
| parent | 18e7af4cee8e4a9b88dee257edffb528b969ecd3 (diff) | |
| download | talos-hostboot-4f4f097d65e919bcc8bd5706f50ea0f413b8bfef.tar.gz talos-hostboot-4f4f097d65e919bcc8bd5706f50ea0f413b8bfef.zip | |
DDR4 - Allow SPD writes
-DDR4 has 512-byte EEPROM with 2 256-byte pages.
This commit contains the necessary page switching
logic to support this.
Change-Id: Iaa8e3e344def98b71d6a9e9387c5e0d9137a0397
RTC:137707
ForwardPort: yes
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/797
Tested-by: Jenkins Server
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Tested-by: Jenkins OP Build CI
Reviewed-by: William G. Hoffa <wghoffa@us.ibm.com>
Tested-by: Jenkins OP HW
Tested-by: FSP CI Jenkins
Reviewed-by: Matthew A. Ploetz <maploetz@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/871
Diffstat (limited to 'src/include/usr/devicefw')
| -rw-r--r-- | src/include/usr/devicefw/driverif.H | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/src/include/usr/devicefw/driverif.H b/src/include/usr/devicefw/driverif.H index 0842f734d..a148725b5 100644 --- a/src/include/usr/devicefw/driverif.H +++ b/src/include/usr/devicefw/driverif.H @@ -5,7 +5,7 @@ /* */ /* OpenPOWER HostBoot Project */ /* */ -/* Contributors Listed Below - COPYRIGHT 2011,2014 */ +/* Contributors Listed Below - COPYRIGHT 2011,2016 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -132,6 +132,31 @@ namespace DeviceFW #define DEVICE_I2C_ADDRESS_OFFSET( i_port, i_engine, i_devAddr, i_offset_len, i_offset)\ DeviceFW::I2C, DEVICE_I2C_PARMS(i_port, i_engine, i_devAddr, i_offset_len, i_offset) + + /** + * Construct the device addressing parameters for locking the page + * attribute of an I2C master target + * + * @param[in] i_port - Which port to use from the I2C master. + * @param[in] i_engine - Which I2C master engine to use. + * @param[in] i_shouldLock - bool to determine whether we are + * attempting to lock or unlock the page. + * @param[in] i_desired_page - The EEPROM page we want to switch to + * iff a page switch is needed. + * @param[in] i_lockMutex - bool to determine whether we actually + * want to lock the page mutex or not. This bool allows + * us to switch pages mid read without hitting a deadlock. + */ +#define DEVICE_I2C_CONTROL_PAGE_OP( i_port, i_engine, i_shouldLock, i_desired_page, i_lockMutex )\ + DeviceFW::I2C,\ + static_cast<uint64_t>(i_port),\ + static_cast<uint64_t>(i_engine),\ + 0xffffffff,\ + static_cast<uint64_t>(i_shouldLock),\ + static_cast<uint64_t>(i_desiredPage),\ + static_cast<uint64_t>(i_lockMutex) + + /** * Construct the device addressing parameters for the Host I2C device ops. * @param[in] i_port - Which port to use from the I2C master. |
