Revert "Disable device tree filter when load a dts from file (#217)"

This reverts commit a161e6f3ef.

Resolves #218

Makefile.in

@@ -116,10 +116,6 @@ ifneq (@BBL_PAYLOAD@,no)
 CFLAGS        := $(CFLAGS) -DBBL_PAYLOAD=\"bbl_payload\"
 endif
 BBL_PAYLOAD   := @BBL_PAYLOAD@
-ifneq (@MACHINE_DTS@,no)
-CFLAGS        := $(CFLAGS) -DMACHINE_DTS=\"machine_dts\"
-endif
-MACHINE_DTS   := @MACHINE_DTS@
 COMPILE       := $(CC) -MMD -MP $(CFLAGS) \
                  $(sprojs_include)
 # Linker

bbl/bbl.c

@@ -41,13 +41,11 @@ static void filter_dtb(uintptr_t source)
   uint32_t size = fdt_size(source);
   memcpy((void*)dest, (void*)source, size);
 
-#ifndef MACHINE_DTS
   // Remove information from the chained FDT
   filter_harts(dest, &disabled_hart_mask);
   filter_plic(dest);
   filter_compat(dest, "riscv,clint0");
   filter_compat(dest, "riscv,debug-013");
-#endif
 }
 
 static void protect_memory(void)

bbl/bbl.lds

@@ -67,7 +67,6 @@ SECTIONS
     *(.srodata*)
     *(.gnu.linkonce.d.*)
     *(.comment)
-    *(.dtb)
   }
 
   /* End of initialized data segment */

configure

@@ -590,7 +590,6 @@ ac_subst_vars='LTLIBOBJS
 LIBOBJS
 subprojects_enabled
 subprojects
-MACHINE_DTS
 BBL_LOGO_FILE
 BBL_PAYLOAD
 BBL_ENABLE_LOGO
@@ -649,7 +648,6 @@ infodir
 docdir
 oldincludedir
 includedir
-runstatedir
 localstatedir
 sharedstatedir
 sysconfdir
@@ -685,7 +683,6 @@ with_payload
 with_logo
 enable_boot_machine
 enable_fp_emulation
-with_dts
 '
       ac_precious_vars='build_alias
 host_alias
@@ -740,7 +737,6 @@ datadir='${datarootdir}'
 sysconfdir='${prefix}/etc'
 sharedstatedir='${prefix}/com'
 localstatedir='${prefix}/var'
-runstatedir='${localstatedir}/run'
 includedir='${prefix}/include'
 oldincludedir='/usr/include'
 docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@@ -993,15 +989,6 @@ do
   | -silent | --silent | --silen | --sile | --sil)
     silent=yes ;;
 
-  -runstatedir | --runstatedir | --runstatedi | --runstated \
-  | --runstate | --runstat | --runsta | --runst | --runs \
-  | --run | --ru | --r)
-    ac_prev=runstatedir ;;
-  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
-  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
-  | --run=* | --ru=* | --r=*)
-    runstatedir=$ac_optarg ;;
-
   -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
     ac_prev=sbindir ;;
   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1139,7 +1126,7 @@ fi
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
-		libdir localedir mandir runstatedir
+		libdir localedir mandir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -1292,7 +1279,6 @@ Fine tuning of the installation directories:
   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
-  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
   --libdir=DIR            object code libraries [EPREFIX/lib]
   --includedir=DIR        C header files [PREFIX/include]
   --oldincludedir=DIR     C header files for non-gcc [/usr/include]
@@ -1345,7 +1331,6 @@ Optional Packages:
   --with-mem-start        Set physical memory start address
   --with-payload          Set ELF payload for bbl
   --with-logo             Specify a better logo
-  --with-dts              Support a machine dts
 
 Some influential environment variables:
   CC          C compiler command
@@ -4484,15 +4469,6 @@ $as_echo "#define PK_ENABLE_FP_EMULATION /**/" >>confdefs.h
 fi
 
 
-# Check whether --with-dts was given.
-if test "${with_dts+set}" = set; then :
-  withval=$with_dts; MACHINE_DTS=$with_dts
-
-
-fi
-
-
-
 
 
 

machine/machine.ac

@@ -4,7 +4,3 @@ AC_ARG_ENABLE([fp-emulation], AS_HELP_STRING([--disable-fp-emulation], [Disable
 AS_IF([test "x$enable_fp_emulation" != "xno"], [
   AC_DEFINE([PK_ENABLE_FP_EMULATION],,[Define if floating-point emulation is enabled])
 ])
-
-AC_ARG_WITH([dts], AS_HELP_STRING([--with-dts], [Support a machine dts]),
-  [AC_SUBST([MACHINE_DTS], $with_dts, [machine dts])]
-)

machine/machine.mk.in

@@ -37,8 +37,3 @@ machine_c_srcs = \
 machine_asm_srcs = \
   mentry.S \
   fp_asm.S \
-  
-mentry.o: machine.dtb
-
-machine.dtb: $(MACHINE_DTS)
-	dtc -O dtb $^ -o $@

machine/mentry.S

@@ -281,10 +281,6 @@ do_reset:
 #endif
 
   # Boot on the first hart
-#ifdef MACHINE_DTS
-  csrr a0, mhartid
-  la a1, dtb_start
-#endif
   j init_first_hart
 
 .LmultiHartInit:
@@ -317,15 +313,6 @@ do_reset:
   wfi
   j .LmultiHart
 
-#ifdef MACHINE_DTS
-.section .dtb
-.align 3
-.global dtb_start, dtb_end
-dtb_start:
-.incbin "machine.dtb"
-dtb_end:
-#endif
-
   .bss
   .align RISCV_PGSHIFT
 stacks: