Add gcc -Os optimization to the hostboot bootloader

Change-Id: Ibe443c8c937387ffa817d22fa72365b216f42151
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/33414
Tested-by: Jenkins Server <[email protected]>
Tested-by: Jenkins OP Build CI <[email protected]>
Reviewed-by: Martin Gloff <[email protected]>
Tested-by: FSP CI Jenkins <[email protected]>
Reviewed-by: Michael Baiocchi <[email protected]>
Reviewed-by: Daniel M. Crowell <[email protected]>

Author: Stephen Cprek

src/bootloader.ld

@@ -41,6 +41,7 @@ SECTIONS
         *(.text)
         *(.text._*)
         *(.text.*)
+        *(.sfpr)
     }
 
     .rodata ALIGN(0x8): {

src/bootloader/makefile

@@ -37,5 +37,7 @@ OBJS += bl_pnor_utils.o
 OBJS += bl_pnor_ecc.o
 OBJS += bl_builtins.o
 
+OPT_LEVEL = -Os
+
 include ${ROOTPATH}/config.mk
 

src/usr/sbe/sbe_update.C

@@ -770,11 +770,13 @@ namespace SBE
                        "pnor vaddr = 0x%.16X",
                        pnorSectionId, pnorInfo.vaddr);
 
-            // Look for HBBL end data on 16-byte boundary start at offset 0x2C00
-            // Note: Code takes up at least the first 0x2C00 bytes of the HBBL
-            //       image, so start at that offset to search for this data.
+            // Look for HBBL end data on 16-byte boundary start at offset
+            // HBBL_FUZZY_END_ADDRESS
+            // Note: Code takes up at least the first HBBL_FUZZY_END_ADDRESS
+            //       bytes of the HBBL image, so start at that offset to search
+            //       for this data.
             uint64_t hbblAbsoluteEnd = pnorInfo.vaddr + pnorInfo.size;
-            uint64_t hbblAddr = pnorInfo.vaddr + 0x2C00;
+            uint64_t hbblAddr = pnorInfo.vaddr + HBBL_FUZZY_END_ADDRESS;
             while( hbblAddr < hbblAbsoluteEnd )
             {
                 hbblEndData = reinterpret_cast<hbblEndData_t*>(hbblAddr);

src/usr/sbe/sbe_update.H

@@ -96,6 +96,7 @@ namespace SBE
 
     // PNOR HBBL Partition constants
     const uint64_t HBBL_START_ADDRESS  = 0x0000000000003000;
+    const uint64_t HBBL_FUZZY_END_ADDRESS = 0x1400;
     const size_t   HBBL_MAX_SIZE       = 20*KILOBYTE;         // 20KB
     const uint64_t HBBL_END_EYECATCHER = 0x4842424C656E6400;  // 'HBBLend\0'