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authorcrgeddes <crgeddes@us.ibm.com>2015-08-26 13:50:30 -0500
committerWilliam G. Hoffa <wghoffa@us.ibm.com>2016-03-03 16:17:52 -0500
commitc73c1d03450fb1dfa0ef9c98485999aeaa0257d7 (patch)
tree70056c4a6b064db49d7419d2d5040f6569ea51fc /src/bootloader/bl_pnorAccess.C
parent8f30c7db00a3ce2940900ec2ba67838bcf432b98 (diff)
downloadtalos-hostboot-c73c1d03450fb1dfa0ef9c98485999aeaa0257d7.tar.gz
talos-hostboot-c73c1d03450fb1dfa0ef9c98485999aeaa0257d7.zip
FFS Support for Bootloader
This commit moves functionality out of pnor_common.C and puts it in a new file pnor_utils.C this file will be shared with bootloader and hostboot code. Quite a few files were pulled apart in order to make includes easier across modules. These are lpc_const.H and pnor_const.H. bl_pnorAccess leverages the new pnor_utils.C file that will help the bootloader parse pnor TOC Change-Id: I740f6f8a707760756a261535e62e2d0a849324f8 RTC:134064 Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/696 Tested-by: Jenkins Server Reviewed-by: Martin Gloff <mgloff@us.ibm.com> Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com> Reviewed-by: William G. Hoffa <wghoffa@us.ibm.com>
Diffstat (limited to 'src/bootloader/bl_pnorAccess.C')
-rw-r--r--src/bootloader/bl_pnorAccess.C189
1 files changed, 189 insertions, 0 deletions
diff --git a/src/bootloader/bl_pnorAccess.C b/src/bootloader/bl_pnorAccess.C
new file mode 100644
index 000000000..046a4bf0a
--- /dev/null
+++ b/src/bootloader/bl_pnorAccess.C
@@ -0,0 +1,189 @@
+/* IBM_PROLOG_BEGIN_TAG */
+/* This is an automatically generated prolog. */
+/* */
+/* $Source: src/bootloader/bl_pnorAccess.C $ */
+/* */
+/* OpenPOWER HostBoot Project */
+/* */
+/* Contributors Listed Below - COPYRIGHT 2015,2016 */
+/* [+] 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 */
+
+#include <bootloader/bl_pnorAccess.H>
+#include <bootloader/bootloader_trace.H>
+#include <util/singleton.H>
+#include <bootloader/bootloader.H>
+#ifdef PNORUTILSTEST_H
+#define BOOTLOADER_TRACE(args) TRACFCOMP(g_trac_pnor,"##args")
+#define BOOTLOADER_TRACE_W_BRK(args) TRACFCOMP(g_trac_pnor,"##args")
+#endif
+
+
+extern const char* cv_EYECATCHER[];
+/**
+* @brief Takes in a buffer containing a ToC, as well as a base address
+ Returns out a boolean whether or not this toc was valid
+ also returns a SectionData_t struct if the toc was valid
+*/
+void bl_pnorAccess::readTOC(uint8_t i_tocBuffer[PNOR::TOC_SIZE],
+ uint32_t & o_errCode,
+ PNOR::SectionData_t * o_TOC,
+ uint64_t i_baseAddr)
+{
+ do
+ {
+ o_errCode = PNOR::NO_ERROR;
+
+ ffs_hdr* l_ffs_hdr = NULL;
+ //zero out the section data for each section
+ PNOR::initializeSections(o_TOC);
+
+ BOOTLOADER_TRACE(BTLDR_TRC_PA_READTOC_ZEROSECTION_RTN);
+
+ //make sure that the buffer is not null
+ PNOR::checkForNullBuffer(i_tocBuffer, o_errCode, l_ffs_hdr);
+
+ if(o_errCode != PNOR::NO_ERROR)
+ {
+ BOOTLOADER_TRACE_W_BRK(BTLDR_TRC_PA_READTOC_CHKNULLBUFFER_NULL);
+ break;
+ }
+
+ BOOTLOADER_TRACE(BTLDR_TRC_PA_READTOC_CHECKNULLBUFFER_RTN);
+
+ //Do a checksum on the header
+ if(PNOR::pnor_ffs_checksum(l_ffs_hdr, FFS_HDR_SIZE) != 0)
+ {
+ o_errCode |= PNOR::CHECKSUM_ERR;
+ }
+
+ if(o_errCode != PNOR::NO_ERROR)
+ {
+ BOOTLOADER_TRACE_W_BRK(BTLDR_TRC_PA_READTOC_HDRCHECKSUM_ERR);
+ break;
+ }
+
+ BOOTLOADER_TRACE(BTLDR_TRC_PA_READTOC_HDRCHECKSUM_RTN);
+
+ //Check out the header to make sure its all valid
+ PNOR::checkHeader(l_ffs_hdr, o_errCode);
+
+ if(o_errCode != PNOR::NO_ERROR)
+ {
+ BOOTLOADER_TRACE_W_BRK(BTLDR_TRC_PA_READTOC_CHECKHEADER_ERR);
+ break;
+ }
+ BOOTLOADER_TRACE(BTLDR_TRC_PA_READTOC_CHECKHEADER_RTN);
+
+
+ //if an error is found with an entry we use this variable to hold
+ //the value of the entry. That way we can record which entry is causing
+ //an issue.
+ ffs_entry* l_err_entry = NULL;
+
+ //parse through the entries and check for any errors
+ PNOR::parseEntries(l_ffs_hdr, o_errCode, o_TOC, l_err_entry);
+
+ if(o_errCode != PNOR::NO_ERROR)
+ {
+ BOOTLOADER_TRACE_W_BRK(BTLDR_TRC_PA_READTOC_PARSEENTRIES_ERR);
+ break;
+ }
+ BOOTLOADER_TRACE(BTLDR_TRC_PA_READTOC_PARSEENTRIES_RTN);
+
+
+ } while(0);
+}
+
+void bl_pnorAccess::findTOC(uint64_t i_pnorBase, PNOR::SectionData_t * o_TOC,
+ uint32_t& o_errCode, uint8_t& o_tocUsed)
+{
+ uint8_t *l_tocBuffer = Bootloader::g_blScratchSpace;
+ do
+ {
+ //@TODO RTC:138268 Set up multiple side of PNOR for bootloader
+ o_errCode = 0;
+ o_tocUsed = 0;
+ //Copy Table of Contents from PNOR flash to a local buffer
+ Bootloader::handleMMIO(i_pnorBase,
+ reinterpret_cast<uint64_t>(l_tocBuffer),
+ (PNOR::TOC_SIZE),
+ Bootloader::BYTESIZE);
+
+ BOOTLOADER_TRACE(BTLDR_TRC_PA_FINDTOC_TOC1_HANDLEMMIO_RTN);
+
+ readTOC(l_tocBuffer, o_errCode, o_TOC, i_pnorBase);
+
+ if(o_errCode == PNOR::NO_ERROR)
+ {
+ BOOTLOADER_TRACE(BTLDR_TRC_PA_FINDTOC_TOC1_READTOC_RTN);
+ o_tocUsed = 0;
+ break;
+ }
+ else
+ {
+ Bootloader::handleMMIO(i_pnorBase + PNOR::BACKUP_TOC_OFFSET,
+ reinterpret_cast<uint64_t>(l_tocBuffer),
+ (PNOR::TOC_SIZE),
+ Bootloader::BYTESIZE);
+
+ o_errCode = 0;
+ readTOC(l_tocBuffer, o_errCode, o_TOC, i_pnorBase);
+ if(o_errCode == PNOR::NO_ERROR)
+ {
+ o_tocUsed = 1;
+ break;
+ }
+ BOOTLOADER_TRACE_W_BRK(BTLDR_TRC_PA_FINDTOC_READTOC_ERR);
+ }
+
+ break;
+ }while(0);
+}
+
+/**
+ * @brief Get the hostboot base image
+ */
+void bl_pnorAccess::getHBBSection(uint64_t i_pnorStart,
+ PNOR::SectionData_t& o_hbbSection,
+ uint32_t& o_errCode,
+ uint8_t& o_tocUsed)
+{
+ BOOTLOADER_TRACE(BTLDR_TRC_PA_GETHBBSECTION_START);
+ do
+ {
+ PNOR::SectionData_t l_TOC[PNOR::NUM_SECTIONS];
+
+ findTOC(i_pnorStart, l_TOC, o_errCode, o_tocUsed);
+ if(o_errCode != PNOR::NO_ERROR)
+ {
+ BOOTLOADER_TRACE_W_BRK(BTLDR_TRC_PA_GETHBBSECTION_FINDTOC_ERR);
+ break;
+ }
+ o_hbbSection = l_TOC[PNOR::HB_BASE_CODE];
+
+ if(o_hbbSection.flashAddr == PNOR::INVALID_FLASH_OFFSET)
+ {
+ o_errCode = PNOR::NO_HBB_SECTION;
+ BOOTLOADER_TRACE_W_BRK(BTLDR_TRC_PA_GETHBBSECTION_FINDTOC_NOHBB);
+ break;
+ }
+ } while(0);
+ BOOTLOADER_TRACE(BTLDR_TRC_PA_GETHBBSECTION_FINDTOC_RTN);
+
+}
+
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