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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>
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src/import/chips/ocmb/common/spd_access/pmic_i2c_addr_get.H
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/* 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 | ||
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/// | ||
/// @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 | ||
/// | ||
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#ifndef __PMIC_I2C_ADDR_GET__ | ||
#define __PMIC_I2C_ADDR_GET__ | ||
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#include <vector> | ||
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constexpr uint16_t SPD_PMIC0_I2C_BYTE = 260; | ||
constexpr uint16_t SPD_PMIC1_I2C_BYTE = 261; | ||
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constexpr uint8_t PMIC0 = 0; | ||
constexpr uint8_t PMIC1 = 1; | ||
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// 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] | ||
}; | ||
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/// | ||
/// @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; | ||
} | ||
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const uint16_t l_byte = PMIC_I2C_ADDR_VECTOR[i_pmic_id]; | ||
return uint8_t(i_spd[l_byte]); | ||
} | ||
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#endif |