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authorMark Pizzutillo <Mark.Pizzutillo@ibm.com>2019-08-28 19:38:36 -0400
committerChristian R Geddes <crgeddes@us.ibm.com>2019-09-16 09:44:50 -0500
commit3cdd4fbe9ad2f4825c92c6204f941b84dfc3262c (patch)
treeb6dc5d51478a86e7b3ebb7a4c95e16e71f201bf9
parent147018379ad0056df157e44b569c3fe048deb37a (diff)
downloadtalos-hostboot-3cdd4fbe9ad2f4825c92c6204f941b84dfc3262c.tar.gz
talos-hostboot-3cdd4fbe9ad2f4825c92c6204f941b84dfc3262c.zip
Add pmic_i2c_addr_get function for platform code use
Change-Id: I79b5bcc1ce8de9066aa87e793d38fab64752f17f Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/83033 Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com> Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com> Reviewed-by: STEPHEN GLANCY <sglancy@us.ibm.com> Reviewed-by: Christian R Geddes <crgeddes@us.ibm.com> Reviewed-by: Jennifer A Stofer <stofer@us.ibm.com> Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/83735 Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com> Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
-rw-r--r--src/import/chips/ocmb/common/spd_access/pmic_i2c_addr_get.H82
1 files changed, 82 insertions, 0 deletions
diff --git a/src/import/chips/ocmb/common/spd_access/pmic_i2c_addr_get.H b/src/import/chips/ocmb/common/spd_access/pmic_i2c_addr_get.H
new file mode 100644
index 000000000..f9134ccb4
--- /dev/null
+++ b/src/import/chips/ocmb/common/spd_access/pmic_i2c_addr_get.H
@@ -0,0 +1,82 @@
+/* IBM_PROLOG_BEGIN_TAG */
+/* This is an automatically generated prolog. */
+/* */
+/* $Source: src/import/chips/ocmb/common/spd_access/pmic_i2c_addr_get.H $ */
+/* */
+/* OpenPOWER HostBoot Project */
+/* */
+/* Contributors Listed Below - COPYRIGHT 2019 */
+/* [+] International Business Machines Corp. */
+/* */
+/* */
+/* Licensed under the Apache License, Version 2.0 (the "License"); */
+/* you may not use this file except in compliance with the License. */
+/* You may obtain a copy of the License at */
+/* */
+/* http://www.apache.org/licenses/LICENSE-2.0 */
+/* */
+/* Unless required by applicable law or agreed to in writing, software */
+/* distributed under the License is distributed on an "AS IS" BASIS, */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
+/* implied. See the License for the specific language governing */
+/* permissions and limitations under the License. */
+/* */
+/* IBM_PROLOG_END_TAG */
+///
+/// @file pmic_i2c_addr_get.H
+/// @brief Function to get PMIC i2c addresses given SPD binary
+///
+// *HWP HWP Owner: Mark Pizzutillo <mark.pizzutillo@ibm.com>
+// *HWP HWP Owner: Dan Crowell <dcrowell@us.ibm.com>
+// *HWP Team: Memory
+// *HWP Level: 2
+// *HWP Consumed by: FSP:HB
+
+///
+/// @brief Get the pmic i2c addrs from the provided spd binary
+///
+/// @param[in] i_spd SPD binary
+/// @param[out] o_pmic0_i2c_addr I2C Address from SPD
+/// @param[out] o_pmic1_i2c_addr I2C Address from SPD
+///
+
+#ifndef __PMIC_I2C_ADDR_GET__
+#define __PMIC_I2C_ADDR_GET__
+
+#include <vector>
+
+constexpr uint16_t SPD_PMIC0_I2C_BYTE = 260;
+constexpr uint16_t SPD_PMIC1_I2C_BYTE = 261;
+
+constexpr uint8_t PMIC0 = 0;
+constexpr uint8_t PMIC1 = 1;
+
+// Mapping from PMIC ID to SPD byte
+static const std::vector<uint16_t> PMIC_I2C_ADDR_VECTOR =
+{
+ SPD_PMIC0_I2C_BYTE, // [0 == PMIC0]
+ SPD_PMIC1_I2C_BYTE // [1 == PMIC1]
+};
+
+///
+/// @brief Get the pmic i2c address for the given PMIC ID
+///
+/// @param[in] i_spd SPD binary
+/// @param[in] i_pmic_id PMIC ID (0,1)
+/// @return uint8_t I2C address for the given PMIC ID
+/// @note May need to be changed to support 4U SPD
+///
+inline uint8_t get_pmic_i2c_addr(const char* i_spd, const uint8_t i_pmic_id)
+{
+ // Out of range, just return 0. Failsafe so we don't segfault
+ // The caller is responsible for calling this with a valid ID
+ if (i_pmic_id >= PMIC_I2C_ADDR_VECTOR.size())
+ {
+ return 0;
+ }
+
+ const uint16_t l_byte = PMIC_I2C_ADDR_VECTOR[i_pmic_id];
+ return uint8_t(i_spd[l_byte]);
+}
+
+#endif
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