[U-Boot] [PATCH 0/3] MIPS: refactoring for extended Qemu support

[U-Boot] [PATCH 0/3] MIPS: refactoring for extended Qemu support

[daniel.schwierzeck at gmail.com]

From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

Refactor handling of endianess flag and CONFIG_STANDALONE_LOAD_ADDR.
Introduce qemu_mipsel support.

Daniel Schwierzeck (3):
  MIPS: factor out endianess flag handling to arch config.mk
  MIPS: move CONFIG_STANDALONE_LOAD_ADDR to CPU config makefiles
  MIPS: add support for qemu for little endian MIPS32 CPUs

 arch/mips/config.mk            | 20 +++++++++++++++++---
 arch/mips/cpu/mips32/config.mk | 19 ++-----------------
 arch/mips/cpu/xburst/config.mk |  5 +++--
 boards.cfg                     |  3 ++-
 include/configs/qemu-mips.h    |  7 ++++++-
 include/configs/qi_lb60.h      |  1 +
 6 files changed, 31 insertions(+), 24 deletions(-)

-- 
1.7.11.3

[U-Boot] [PATCH 1/3] MIPS: factor out endianess flag handling to arch config.mk

[daniel.schwierzeck at gmail.com]

From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

This is CPU independent and should be configured architecture-wide.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
---
 arch/mips/config.mk            | 20 ++++++++++++++++++--
 arch/mips/cpu/mips32/config.mk | 19 +------------------
 arch/mips/cpu/xburst/config.mk |  3 +--
 include/configs/qi_lb60.h      |  1 +
 4 files changed, 21 insertions(+), 22 deletions(-)

diff --git a/arch/mips/config.mk b/arch/mips/config.mk
index 6ab8acd..b680256 100644
--- a/arch/mips/config.mk
+++ b/arch/mips/config.mk
@@ -23,6 +23,22 @@
 
 CROSS_COMPILE ?= mips_4KC-
 
+# Handle special prefix in ELDK 4.0 toolchain
+ifneq (,$(findstring 4KCle,$(CROSS_COMPILE)))
+ENDIANNESS := -EL
+endif
+
+ifdef CONFIG_SYS_LITTLE_ENDIAN
+ENDIANNESS := -EL
+endif
+
+ifdef CONFIG_SYS_BIG_ENDIAN
+ENDIANNESS := -EB
+endif
+
+# Default to EB if no endianess is configured
+ENDIANNESS ?= -EB
+
 CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T mips.lds
 
 PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__
@@ -47,8 +63,8 @@ PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__
 # On the other hand, we want PIC in the U-Boot code to relocate it from ROM
 # to RAM. $28 is always used as gp.
 #
-PLATFORM_CPPFLAGS		+= -G 0 -mabicalls -fpic
+PLATFORM_CPPFLAGS		+= -G 0 -mabicalls -fpic $(ENDIANNESS)
 PLATFORM_CPPFLAGS		+= -msoft-float
-PLATFORM_LDFLAGS		+= -G 0 -static -n -nostdlib
+PLATFORM_LDFLAGS		+= -G 0 -static -n -nostdlib $(ENDIANNESS)
 PLATFORM_RELFLAGS		+= -ffunction-sections -fdata-sections
 LDFLAGS_FINAL			+= --gc-sections
diff --git a/arch/mips/cpu/mips32/config.mk b/arch/mips/cpu/mips32/config.mk
index a1cd590..a0e4de5 100644
--- a/arch/mips/cpu/mips32/config.mk
+++ b/arch/mips/cpu/mips32/config.mk
@@ -29,21 +29,4 @@
 #
 MIPSFLAGS := -march=mips32r2
 
-# Handle special prefix in ELDK 4.0 toolchain
-ifneq (,$(findstring 4KCle,$(CROSS_COMPILE)))
-ENDIANNESS := -EL
-endif
-
-ifdef CONFIG_SYS_LITTLE_ENDIAN
-ENDIANNESS := -EL
-endif
-
-ifdef CONFIG_SYS_BIG_ENDIAN
-ENDIANNESS := -EB
-endif
-
-# Default to EB if no endianess is configured
-ENDIANNESS ?= -EB
-
-PLATFORM_CPPFLAGS += $(MIPSFLAGS) $(ENDIANNESS)
-PLATFORM_LDFLAGS += $(ENDIANNESS)
+PLATFORM_CPPFLAGS += $(MIPSFLAGS)
diff --git a/arch/mips/cpu/xburst/config.mk b/arch/mips/cpu/xburst/config.mk
index bce0c1b..18d49ab 100644
--- a/arch/mips/cpu/xburst/config.mk
+++ b/arch/mips/cpu/xburst/config.mk
@@ -20,5 +20,4 @@
 # MA 02111-1307 USA
 #
 
-PLATFORM_CPPFLAGS += -march=mips32 -EL
-PLATFORM_LDFLAGS += -EL
+PLATFORM_CPPFLAGS += -march=mips32
diff --git a/include/configs/qi_lb60.h b/include/configs/qi_lb60.h
index a3fc465..4bb5bbc 100644
--- a/include/configs/qi_lb60.h
+++ b/include/configs/qi_lb60.h
@@ -11,6 +11,7 @@
 #define __CONFIG_QI_LB60_H
 
 #define CONFIG_MIPS32		/* MIPS32 CPU core */
+#define CONFIG_SYS_LITTLE_ENDIAN
 #define CONFIG_JZSOC		/* Jz SoC */
 #define CONFIG_JZ4740		/* Jz4740 SoC */
 #define CONFIG_NAND_JZ4740
-- 
1.7.11.3

[U-Boot] [PATCH 2/3] MIPS: move CONFIG_STANDALONE_LOAD_ADDR to CPU config makefiles

[daniel.schwierzeck at gmail.com]

From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

Prepare for upcoming MIPS64 CPU support.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
---
 arch/mips/config.mk            | 2 --
 arch/mips/cpu/mips32/config.mk | 2 ++
 arch/mips/cpu/xburst/config.mk | 2 ++
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/mips/config.mk b/arch/mips/config.mk
index b680256..de9140b 100644
--- a/arch/mips/config.mk
+++ b/arch/mips/config.mk
@@ -39,8 +39,6 @@ endif
 # Default to EB if no endianess is configured
 ENDIANNESS ?= -EB
 
-CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T mips.lds
-
 PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__
 
 #
diff --git a/arch/mips/cpu/mips32/config.mk b/arch/mips/cpu/mips32/config.mk
index a0e4de5..481e984 100644
--- a/arch/mips/cpu/mips32/config.mk
+++ b/arch/mips/cpu/mips32/config.mk
@@ -30,3 +30,5 @@
 MIPSFLAGS := -march=mips32r2
 
 PLATFORM_CPPFLAGS += $(MIPSFLAGS)
+
+CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T mips.lds
diff --git a/arch/mips/cpu/xburst/config.mk b/arch/mips/cpu/xburst/config.mk
index 18d49ab..1536746 100644
--- a/arch/mips/cpu/xburst/config.mk
+++ b/arch/mips/cpu/xburst/config.mk
@@ -21,3 +21,5 @@
 #
 
 PLATFORM_CPPFLAGS += -march=mips32
+
+CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T mips.lds
-- 
1.7.11.3

[U-Boot] [PATCH 3/3] MIPS: add support for qemu for little endian MIPS32 CPUs

[daniel.schwierzeck at gmail.com]

From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

Tested with 'qemu-system-mipsel -machine mips -bios u-boot.bin -nographic'

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
---
 boards.cfg                  | 3 ++-
 include/configs/qemu-mips.h | 7 ++++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/boards.cfg b/boards.cfg
index fdb84ad..6b54941 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -378,7 +378,8 @@ M5485FFE		     m68k	 mcf547x_8x  m548xevb            freescale      -
 M5485GFE		     m68k        mcf547x_8x  m548xevb            freescale      -           M5485EVB:SYS_BUSCLK=100000000,SYS_BOOTSZ=4,SYS_DRAMSZ=64
 M5485HFE		     m68k        mcf547x_8x  m548xevb            freescale      -           M5485EVB:SYS_BUSCLK=100000000,SYS_BOOTSZ=2,SYS_DRAMSZ=64,SYS_NOR1SZ=16,SYS_VIDEO
 microblaze-generic           microblaze  microblaze  microblaze-generic  xilinx
-qemu_mips                    mips        mips32      qemu-mips           -              -           qemu-mips
+qemu_mips                    mips        mips32      qemu-mips           -              -           qemu-mips:SYS_BIG_ENDIAN
+qemu_mipsel                  mips        mips32      qemu-mips           -              -           qemu-mips:SYS_LITTLE_ENDIAN
 vct_platinum                 mips        mips32      vct                 micronas       -           vct:VCT_PLATINUM
 vct_platinumavc              mips        mips32      vct                 micronas       -           vct:VCT_PLATINUMAVC
 vct_platinumavc_onenand      mips        mips32      vct                 micronas       -           vct:VCT_PLATINUMAVC,VCT_ONENAND
diff --git a/include/configs/qemu-mips.h b/include/configs/qemu-mips.h
index 306c173..b8b9705 100644
--- a/include/configs/qemu-mips.h
+++ b/include/configs/qemu-mips.h
@@ -100,7 +100,12 @@
  */
 #define CONFIG_SYS_LONGHELP				/* undef to save memory */
 
-#define CONFIG_SYS_PROMPT		"qemu-mips # "	/* Monitor Command Prompt */
+/* Monitor Command Prompt */
+#if defined(CONFIG_SYS_LITTLE_ENDIAN)
+#define CONFIG_SYS_PROMPT		"qemu-mipsel # "
+#else
+#define CONFIG_SYS_PROMPT		"qemu-mips # "
+#endif
 
 #define CONFIG_AUTO_COMPLETE
 #define CONFIG_CMDLINE_EDITING
-- 
1.7.11.3

[U-Boot] [PATCH 1/3] MIPS: factor out endianess flag handling to arch config.mk

[Mike Frysinger]

On Thursday 23 August 2012 18:50:47 daniel.schwierzeck at gmail.com wrote:
> From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
> 
> This is CPU independent and should be configured architecture-wide.

nice
Acked-by: Mike Frysinger <vapier@gentoo.org>
-mike
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