[U-Boot] [PATCH v5 0/7] SPL: Port SPL framework to powerpc

This patchset ports the SPL framework to powerpc. Its based on the SPL generalization lately done by Tom Rini. The patches is based on the current "master" branch.
Additionally, a new MPC5200 board port is included, the a3m071 board port. This board port uses this SPL framework mainly to speed up booting into the OS (Linux of course). Detection of Linux vs. U-Boot booting is done here by checking the environment variable "boot_os". If "boot_os" is set to "yes", then the OS (Linux) is booted. Otherwise the "real" U-Boot is booted.
Tom, what do you think? I would really like to get this included now. Would you prefer if I would push this patch series into a git repo where you could pull from?
Thanks, Stefan
Changes in v5: - Remove timer_init() for PPC systems - Remove some unneeded defines from a3m071.h (e.g. LIME related) - Configure PCS2 not for SPI as default
Changes in v4: - Build spl.o only for SPL image - getenv_f not extracted into separate file. Only Makefile additions for SPL_BUILD needed. - Add remark to call "fdt chosen" to board/a3m071/README - Configure PCS2 as CODEC2 (SPI) - Drop patch fdt: cmd_fdt: Call fdt_chosen() from "fdt boardsetup"
Changes in v3: - Rebased on current master plus SPL framework v7 - Don't use special MPC5xxx memcpy in SPL - Move linker symbols to header spl.h (checkpatch)
Changes in v2: - Rebased on Tom's SPL framework patches v4 - Add option to skip copying of the mkimage header - Rebased on Tom's SPL framework patches v4 - Rebased on Tom's SPL framework patches v4 - a3m071 build: Concat SPL binary and u-boot.img directly (no padding)
Stefan Roese (7): powerpc: Extract EPAPR_MAGIC constants into processor.h SPL: Port SPL framework to powerpc env: Enable getenv_f() for SPL_BUILD mpc5200: Add SPL support mpc5200: Add a3m071 board support Makefile: Add possibility to set entry-point for u-boot.img Makefile: Add target for combined spl/u-boot.bin & u-boot.img
MAINTAINERS | 2 + Makefile | 14 +- arch/powerpc/cpu/mpc5xxx/Makefile | 4 + arch/powerpc/cpu/mpc5xxx/spl_boot.c | 79 +++++++ arch/powerpc/cpu/mpc5xxx/start.S | 22 ++ arch/powerpc/cpu/mpc5xxx/u-boot-spl.lds | 57 +++++ arch/powerpc/include/asm/processor.h | 6 + arch/powerpc/include/asm/spl.h | 31 +++ arch/powerpc/lib/Makefile | 14 ++ arch/powerpc/lib/bootm.c | 6 - arch/powerpc/lib/spl.c | 42 ++++ board/a3m071/Makefile | 36 +++ board/a3m071/README | 80 +++++++ board/a3m071/a3m071.c | 335 ++++++++++++++++++++++++++++ board/a3m071/mt46v16m16-75.h | 32 +++ boards.cfg | 1 + common/Makefile | 3 + common/spl/spl.c | 16 ++ include/configs/a3m071.h | 380 ++++++++++++++++++++++++++++++++ 19 files changed, 1153 insertions(+), 7 deletions(-) create mode 100644 arch/powerpc/cpu/mpc5xxx/spl_boot.c create mode 100644 arch/powerpc/cpu/mpc5xxx/u-boot-spl.lds create mode 100644 arch/powerpc/include/asm/spl.h create mode 100644 arch/powerpc/lib/spl.c create mode 100644 board/a3m071/Makefile create mode 100644 board/a3m071/README create mode 100644 board/a3m071/a3m071.c create mode 100644 board/a3m071/mt46v16m16-75.h create mode 100644 include/configs/a3m071.h

By extracting these defines into a header, they can be re-used by other C sources as well. This will be done by the SPL framework OS boot support.
Signed-off-by: Stefan Roese sr@denx.de ---
arch/powerpc/include/asm/processor.h | 6 ++++++ arch/powerpc/lib/bootm.c | 6 ------ 2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 7aa3231..19fe250 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -1342,4 +1342,10 @@ void _nmask_and_or_msr(unsigned long nmask, unsigned long or_val); #endif #endif /* CONFIG_MACH_SPECIFIC */
+#if defined(CONFIG_MPC85xx) || defined(CONFIG_440) + #define EPAPR_MAGIC (0x45504150) +#else + #define EPAPR_MAGIC (0x65504150) +#endif + #endif /* __ASM_PPC_PROCESSOR_H */ diff --git a/arch/powerpc/lib/bootm.c b/arch/powerpc/lib/bootm.c index 53dc4df..e3fee0b 100644 --- a/arch/powerpc/lib/bootm.c +++ b/arch/powerpc/lib/bootm.c @@ -87,12 +87,6 @@ static void boot_jump_linux(bootm_headers_t *images) * r8: 0 * r9: 0 */ -#if defined(CONFIG_MPC85xx) || defined(CONFIG_440) - #define EPAPR_MAGIC (0x45504150) -#else - #define EPAPR_MAGIC (0x65504150) -#endif - debug (" Booting using OF flat tree...\n"); WATCHDOG_RESET (); (*kernel) ((bd_t *)of_flat_tree, 0, 0, EPAPR_MAGIC,

On Tue, Oct 23, 2012 at 10:28:29AM +0200, Stefan Roese wrote:
By extracting these defines into a header, they can be re-used by other C sources as well. This will be done by the SPL framework OS boot support.
Signed-off-by: Stefan Roese sr@denx.de
release.S:354:0: warning: "EPAPR_MAGIC" redefined [enabled by default] .../P2020RDB-PC_36BIT/include2/asm/processor.h:1346:0: note: this is the location of the previous definition
Please fix, thanks!

Hi Tom,
On 10/29/2012 09:55 PM, Tom Rini wrote:
On Tue, Oct 23, 2012 at 10:28:29AM +0200, Stefan Roese wrote:
By extracting these defines into a header, they can be re-used by other C sources as well. This will be done by the SPL framework OS boot support.
Signed-off-by: Stefan Roese sr@denx.de
release.S:354:0: warning: "EPAPR_MAGIC" redefined [enabled by default] .../P2020RDB-PC_36BIT/include2/asm/processor.h:1346:0: note: this is the location of the previous definition
Please fix, thanks!
Yes, sorry. Will send a new version soon.
Thanks, Stefan

This patch enables the SPL framework to be used on powerpc platforms and not only ARM.
timer_init() does not exist on PPC systems. The timer (decrementer) is initialized and enabled in interrupt_init() here. And currently interrupt_init() is called after relocation to SDRAM. Since the only powerpc SPL implementation (a3m071) doesn't need a timer, let's remove this timer_init() call for PPC systems.
Signed-off-by: Stefan Roese sr@denx.de --- Changes in v5: - Remove timer_init() for PPC systems
Changes in v4: - Build spl.o only for SPL image
Changes in v2: - Rebased on Tom's SPL framework patches v4 - Add option to skip copying of the mkimage header
arch/powerpc/lib/Makefile | 4 ++++ arch/powerpc/lib/spl.c | 42 ++++++++++++++++++++++++++++++++++++++++++ common/spl/spl.c | 16 ++++++++++++++++ 3 files changed, 62 insertions(+) create mode 100644 arch/powerpc/lib/spl.c
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index 808021c..1beecf6 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -64,6 +64,10 @@ $(obj)ppcstring.o: AFLAGS += -Dmemcpy=__memcpy COBJS-y += memcpy_mpc5200.o endif
+ifdef CONFIG_SPL_BUILD +COBJS-$(CONFIG_SPL_FRAMEWORK) += spl.o +endif + COBJS += $(sort $(COBJS-y))
SRCS := $(GLSOBJS:.o=.S) $(GLCOBJS:.o=.c) \ diff --git a/arch/powerpc/lib/spl.c b/arch/powerpc/lib/spl.c new file mode 100644 index 0000000..502c93b --- /dev/null +++ b/arch/powerpc/lib/spl.c @@ -0,0 +1,42 @@ +/* + * Copyright 2012 Stefan Roese sr@denx.de + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#include <common.h> +#include <config.h> +#include <spl.h> +#include <image.h> +#include <linux/compiler.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * This function jumps to an image with argument. Normally an FDT or ATAGS + * image. + * arg: Pointer to paramter image in RAM + */ +#ifdef CONFIG_SPL_OS_BOOT +void __noreturn jump_to_image_linux(void *arg) +{ + debug("Entering kernel arg pointer: 0x%p\n", arg); + typedef void (*image_entry_arg_t)(void *, ulong r4, ulong r5, ulong r6, + ulong r7, ulong r8, ulong r9) + __attribute__ ((noreturn)); + image_entry_arg_t image_entry = + (image_entry_arg_t)spl_image.entry_point; + + image_entry(arg, 0, 0, EPAPR_MAGIC, CONFIG_SYS_BOOTMAPSZ, 0, 0); +} +#endif /* CONFIG_SPL_OS_BOOT */ diff --git a/common/spl/spl.c b/common/spl/spl.c index 0d829c0..0d316e3 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -74,6 +74,16 @@ __weak int spl_start_uboot(void) } #endif
+/* + * Weak default function for board specific cleanup/preparation before + * Linux boot. Some boards/platforms might not need it, so just provide + * an empty stub here. + */ +__weak void spl_board_prepare_for_linux(void) +{ + /* Nothing to do! */ +} + void spl_parse_image_header(const struct image_header *header) { u32 header_size = sizeof(struct image_header); @@ -155,7 +165,13 @@ void board_init_r(gd_t *dummy1, ulong dummy2) CONFIG_SYS_SPL_MALLOC_SIZE); #endif
+#ifndef CONFIG_PPC + /* + * timer_init() does not exist on PPC systems. The timer is initialized + * and enabled (decrementer) in interrupt_init() here. + */ timer_init(); +#endif
#ifdef CONFIG_SPL_BOARD_INIT spl_board_init();

With this patch, getenv_f() can be included easily into the SPL binary. With this, SPL boards can now use getenv_f() to read environment variables (e.g. to detect if the OS or U-Boot shall be executed).
In the approach this is done for env stored in NOR flash, as this will be used by an upcoming MPC5200 board port.
Signed-off-by: Stefan Roese sr@denx.de --- Changes in v4: - getenv_f not extracted into separate file. Only Makefile additions for SPL_BUILD needed.
Changes in v3: - Rebased on current master plus SPL framework v7
common/Makefile | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/common/Makefile b/common/Makefile index eac6360..e76f2e1 100644 --- a/common/Makefile +++ b/common/Makefile @@ -199,6 +199,9 @@ COBJS-$(CONFIG_CMD_DFU) += cmd_dfu.o endif
ifdef CONFIG_SPL_BUILD +COBJS-y += cmd_nvedit.o +COBJS-y += env_common.o +COBJS-$(CONFIG_ENV_IS_IN_FLASH) += env_flash.o COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += xyzModem.o COBJS-$(CONFIG_SPL_NET_SUPPORT) += cmd_nvedit.o COBJS-$(CONFIG_SPL_NET_SUPPORT) += env_common.o

This patch adds SPL booting support (NOR flash) for the MPC5200 platforms.
Signed-off-by: Stefan Roese sr@denx.de --- Changes in v3: - Don't use special MPC5xxx memcpy in SPL - Move linker symbols to header spl.h (checkpatch)
Changes in v2: - Rebased on Tom's SPL framework patches v4
arch/powerpc/cpu/mpc5xxx/Makefile | 4 ++ arch/powerpc/cpu/mpc5xxx/spl_boot.c | 79 +++++++++++++++++++++++++++++++++ arch/powerpc/cpu/mpc5xxx/start.S | 22 +++++++++ arch/powerpc/cpu/mpc5xxx/u-boot-spl.lds | 57 ++++++++++++++++++++++++ arch/powerpc/include/asm/spl.h | 31 +++++++++++++ arch/powerpc/lib/Makefile | 10 +++++ 6 files changed, 203 insertions(+) create mode 100644 arch/powerpc/cpu/mpc5xxx/spl_boot.c create mode 100644 arch/powerpc/cpu/mpc5xxx/u-boot-spl.lds create mode 100644 arch/powerpc/include/asm/spl.h
diff --git a/arch/powerpc/cpu/mpc5xxx/Makefile b/arch/powerpc/cpu/mpc5xxx/Makefile index 1a088b7..8de2c13 100644 --- a/arch/powerpc/cpu/mpc5xxx/Makefile +++ b/arch/powerpc/cpu/mpc5xxx/Makefile @@ -41,6 +41,10 @@ COBJS-y += speed.o COBJS-$(CONFIG_CMD_USB) += usb_ohci.o COBJS-$(CONFIG_CMD_USB) += usb.o
+ifdef CONFIG_SPL_BUILD +COBJS-y += spl_boot.o +endif + SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS-y)) START := $(addprefix $(obj),$(SSTART) $(CSTART)) diff --git a/arch/powerpc/cpu/mpc5xxx/spl_boot.c b/arch/powerpc/cpu/mpc5xxx/spl_boot.c new file mode 100644 index 0000000..9f14127 --- /dev/null +++ b/arch/powerpc/cpu/mpc5xxx/spl_boot.c @@ -0,0 +1,79 @@ +/* + * Copyright (C) 2012 Stefan Roese sr@denx.de + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <common.h> +#include <spl.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Needed to align size SPL image to a 4-byte length + */ +u32 end_align __attribute__ ((section(".end_align"))); + +/* + * Return selected boot device. On MPC5200 its only NOR flash right now. + */ +u32 spl_boot_device(void) +{ + return BOOT_DEVICE_NOR; +} + +/* + * SPL version of board_init_f() + */ +void board_init_f(ulong bootflag) +{ + end_align = (u32)__spl_flash_end; + + /* + * First we need to initialize the SDRAM, so that the real + * U-Boot or the OS (Linux) can be loaded + */ + initdram(0); + + /* Clear bss */ + memset(__bss_start, '\0', __bss_end__ - __bss_start); + + /* + * Init global_data pointer. Has to be done before calling + * get_clocks(), as it stores some clock values into gd needed + * later on in the serial driver. + */ + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t *)(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); + /* Clear initial global data */ + memset((void *)gd, 0, sizeof(gd_t)); + + /* + * get_clocks() needs to be called so that the serial driver + * works correctly + */ + get_clocks(); + + /* + * Do rudimental console / serial setup + */ + preloader_console_init(); + + /* + * Call board_init_r() (SPL framework version) to load and boot + * real U-Boot or OS + */ + board_init_r(NULL, 0); + /* Does not return!!! */ +} diff --git a/arch/powerpc/cpu/mpc5xxx/start.S b/arch/powerpc/cpu/mpc5xxx/start.S index 51cc4e2..ad5bc0a 100644 --- a/arch/powerpc/cpu/mpc5xxx/start.S +++ b/arch/powerpc/cpu/mpc5xxx/start.S @@ -50,6 +50,7 @@ #define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI) #endif
+#ifndef CONFIG_SPL_BUILD /* * Set up GOT: Global Offset Table * @@ -68,6 +69,7 @@ GOT_ENTRY(__bss_end__) GOT_ENTRY(__bss_start) END_GOT +#endif
/* * Version string @@ -84,6 +86,18 @@ version_string: . = EXC_OFF_SYS_RESET .globl _start _start: + +#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD) + /* + * This is the entry of the real U-Boot from a board port + * that supports SPL booting on the MPC5200. We only need + * to call board_init_f() here. Everything else has already + * been done in the SPL u-boot version. + */ + GET_GOT /* initialize GOT access */ + bl board_init_f /* run 1st part of board init code (in Flash)*/ + /* NOTREACHED - board_init_f() does not return */ +#else mfmsr r5 /* save msr contents */
/* Move CSBoot and adjust instruction pointer */ @@ -152,7 +166,9 @@ lowboot_reentry: /* Be careful to keep code relocatable ! */ /*--------------------------------------------------------------*/
+#ifndef CONFIG_SPL_BUILD GET_GOT /* initialize GOT access */ +#endif
/* r3: IMMR */ bl cpu_init_f /* run low-level CPU init code (in Flash)*/ @@ -160,7 +176,9 @@ lowboot_reentry: bl board_init_f /* run 1st part of board init code (in Flash)*/
/* NOTREACHED - board_init_f() does not return */ +#endif
+#ifndef CONFIG_SPL_BUILD /* * Vector Table */ @@ -333,6 +351,7 @@ int_return: lwz r1,GPR1(r1) SYNC rfi +#endif /* CONFIG_SPL_BUILD */
/* * This code initialises the MPC5xxx processor core @@ -522,6 +541,7 @@ get_pvr: mfspr r3, PVR blr
+#ifndef CONFIG_SPL_BUILD /*------------------------------------------------------------------------------*/
/* @@ -759,3 +779,5 @@ trap_init:
mtlr r4 /* restore link register */ blr + +#endif /* CONFIG_SPL_BUILD */ diff --git a/arch/powerpc/cpu/mpc5xxx/u-boot-spl.lds b/arch/powerpc/cpu/mpc5xxx/u-boot-spl.lds new file mode 100644 index 0000000..cab9b92 --- /dev/null +++ b/arch/powerpc/cpu/mpc5xxx/u-boot-spl.lds @@ -0,0 +1,57 @@ +/* + * Copyright 2012 Stefan Roese sr@denx.de + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +MEMORY +{ + sdram : ORIGIN = CONFIG_SPL_BSS_START_ADDR, + LENGTH = CONFIG_SPL_BSS_MAX_SIZE + flash : ORIGIN = CONFIG_SPL_TEXT_BASE, + LENGTH = CONFIG_SYS_SPL_MAX_LEN +} + +OUTPUT_ARCH(powerpc) +ENTRY(_start) +SECTIONS +{ + .text : + { + __start = .; + arch/powerpc/cpu/mpc5xxx/start.o (.text) + *(.text*) + } > flash + + . = ALIGN(4); + .data : { *(SORT_BY_ALIGNMENT(.data*)) } > flash + + . = ALIGN(4); + .rodata : { *(SORT_BY_ALIGNMENT(.rodata*)) } > flash + + . = ALIGN(4); + .end_align : { *(.end_align*) } > flash + __spl_flash_end = .; + + .bss : + { + . = ALIGN(4); + __bss_start = .; + *(.bss*) + . = ALIGN(4); + __bss_end__ = .; + } > sdram +} diff --git a/arch/powerpc/include/asm/spl.h b/arch/powerpc/include/asm/spl.h new file mode 100644 index 0000000..f43bc23 --- /dev/null +++ b/arch/powerpc/include/asm/spl.h @@ -0,0 +1,31 @@ +/* + * (C) Copyright 2012 + * Texas Instruments, <www.ti.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#ifndef _ASM_SPL_H_ +#define _ASM_SPL_H_ + +#define BOOT_DEVICE_NOR 1 + +/* Linker symbols */ +extern char __bss_start[], __bss_end__[]; + +#endif diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index 1beecf6..fa62835 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -44,7 +44,9 @@ SOBJS-y += ticks.o SOBJS-y += reloc.o
COBJS-$(CONFIG_BAT_RW) += bat_rw.o +ifndef CONFIG_SPL_BUILD COBJS-y += board.o +endif COBJS-y += bootm.o COBJS-y += cache.o COBJS-y += extable.o @@ -53,6 +55,11 @@ COBJS-$(CONFIG_CMD_KGDB) += kgdb.o COBJS-${CONFIG_CMD_IDE} += ide.o COBJS-y += time.o
+# Don't include the MPC5xxx special memcpy into the +# SPL U-Boot image. memcpy is used in the SPL NOR +# flash driver. And we need the real, fast memcpy +# here. We have no problems with unaligned access. +ifndef CONFIG_SPL_BUILD # Workaround for local bus unaligned access problems # on MPC512x and MPC5200 ifdef CONFIG_MPC512X @@ -63,6 +70,7 @@ ifdef CONFIG_MPC5200 $(obj)ppcstring.o: AFLAGS += -Dmemcpy=__memcpy COBJS-y += memcpy_mpc5200.o endif +endif
ifdef CONFIG_SPL_BUILD COBJS-$(CONFIG_SPL_FRAMEWORK) += spl.o @@ -79,12 +87,14 @@ TARGETS += $(LIB) all: $(TARGETS)
$(LIB): $(obj).depend $(OBJS) +ifndef CONFIG_SPL_BUILD @if ! $(CROSS_COMPILE)readelf -S $(OBJS) | grep -q '.fixup.*PROGBITS';\ then \ echo "ERROR: Your compiler doesn't generate .fixup sections!";\ echo " Upgrade to a recent toolchain."; \ exit 1; \ fi; +endif $(call cmd_link_o_target, $(OBJS))
$(LIBGCC): $(obj).depend $(LGOBJS)

This patch adds support for the a3m071 board based on the MPC5200.
Signed-off-by: Stefan Roese sr@denx.de --- Changes in v5: - Remove some unneeded defines from a3m071.h (e.g. LIME related) - Configure PCS2 not for SPI as default
Changes in v4: - Add remark to call "fdt chosen" to board/a3m071/README - Configure PCS2 as CODEC2 (SPI)
Changes in v2: - Rebased on Tom's SPL framework patches v4 - a3m071 build: Concat SPL binary and u-boot.img directly (no padding)
MAINTAINERS | 2 + board/a3m071/Makefile | 36 ++++ board/a3m071/README | 80 +++++++++ board/a3m071/a3m071.c | 335 ++++++++++++++++++++++++++++++++++++++ board/a3m071/mt46v16m16-75.h | 32 ++++ boards.cfg | 1 + include/configs/a3m071.h | 380 +++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 866 insertions(+) create mode 100644 board/a3m071/Makefile create mode 100644 board/a3m071/README create mode 100644 board/a3m071/a3m071.c create mode 100644 board/a3m071/mt46v16m16-75.h create mode 100644 include/configs/a3m071.h
diff --git a/MAINTAINERS b/MAINTAINERS index 1b2da94..3ff9bc3 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -393,6 +393,8 @@ Ricardo Ribalda ricardo.ribalda@uam.es
Stefan Roese sr@denx.de
+ a3m071 MPC5200 + P3M7448 MPC7448
uc100 MPC857 diff --git a/board/a3m071/Makefile b/board/a3m071/Makefile new file mode 100644 index 0000000..6f961fb --- /dev/null +++ b/board/a3m071/Makefile @@ -0,0 +1,36 @@ +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(BOARD).o + +COBJS := $(BOARD).o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) + $(call cmd_link_o_target, $(OBJS)) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/a3m071/README b/board/a3m071/README new file mode 100644 index 0000000..7698614 --- /dev/null +++ b/board/a3m071/README @@ -0,0 +1,80 @@ +------------------------------------------------------------------------ +A3M071 board support +------------------------------------------------------------------------ + + +SPL NOR flash support: +---------------------- +To boot fast into the OS (Linux), this board port integrates the SPL +framework. This means, that a special, stripped-down version of +U-Boot runs in the beginning. In the case of the A3M071 board, this +SPL U-Boot version is less than 16 KiB big. This SPL U-Boot can either +boot the OS (Linux) or a "real", full-blown U-Boot. This detection +on whether to boot Linux or U-Boot is done by using the "boot_os" +environment variable. If "boot_os" is set to "yes", Linux will be +loaded and booted from the SPL U-Boot version. Otherwise, the +full-blown U-Boot version will be loaded and run. + +Enabling Linux booting: +----------------------- +From U-Boot: +=> setenv boot_os yes +=> saveenv + +From Linux: +$ fw_setenv boot_os yes + +Enabling U-Boot booting: +------------------------ +From U-Boot: +=> setenv boot_os no +=> saveenv + +From Linux: +$ fw_setenv boot_os no + + +Preparing Linux image(s) for booting from SPL U-Boot: +----------------------------------------------------- +To boot the Linux kernel from the SPL, the DT blob (fdt) needs to get +prepard/patched first. U-Boot usually inserts some dynamic values into +the DT binary (blob), e.g. autodetected memory size, MAC addresses, +clocks speeds etc. To generate this patched DT blob, you can use +the following command: + +1. Load fdt blob to SDRAM: +=> tftp 1800000 a3m071/a3m071.dtb + +2. Set bootargs as desired for Linux booting (e.g. flash_mtd): +=> run mtdargs addip2 addtty + +3. Use "fdt" commands to patch the DT blob: +=> fdt addr 1800000 +=> fdt boardsetup +=> fdt chosen + +4. Display patched DT blob (optional): +=> fdt print + +5. Save fdt to NOR flash: +=> erase fc060000 fc07ffff +=> cp.b 1800000 fc060000 10000 + +All this can be integrated into an environment command: +=> setenv upd_fdt 'tftp 1800000 a3m071/a3m071.dtb;run mtdargs addip2 addtty; \ + fdt addr 1800000;fdt boardsetup;erase fc060000 fc07ffff; \ + cp.b 1800000 fc060000 10000' +=> saveenv + +After this, only "run upd_fdt" needs to get called to load, patch +and save the DT blob into NOR flash. + +Additionally, the Linux kernel image has to be saved uncompressed in +its uImage file (and not gzip compressed). This can be done with this +command: + +$ mkimage -A ppc -O linux -T kernel -C none -a 0 -e 0 \ + -n "Linux Kernel Image" -d vmlinux.bin uImage.uncompressed + +------------------------------------------------------------------------ +Stefan Roese, 2012-08-23 diff --git a/board/a3m071/a3m071.c b/board/a3m071/a3m071.c new file mode 100644 index 0000000..89ced82 --- /dev/null +++ b/board/a3m071/a3m071.c @@ -0,0 +1,335 @@ +/* + * (C) Copyright 2003-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2004 + * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. + * + * (C) Copyright 2006 + * MicroSys GmbH + * + * Copyright 2012 Stefan Roese sr@denx.de + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#include <common.h> +#include <command.h> +#include <mpc5xxx.h> +#include <pci.h> +#include <miiphy.h> +#include <asm/processor.h> +#include <asm/io.h> + +#include "mt46v16m16-75.h" + +DECLARE_GLOBAL_DATA_PTR; + +#if !defined(CONFIG_SYS_RAMBOOT) && \ + (defined(CONFIG_SPL) && defined(CONFIG_SPL_BUILD)) +static void sdram_start(int hi_addr) +{ + long hi_addr_bit = hi_addr ? 0x01000000 : 0; + long control = SDRAM_CONTROL | hi_addr_bit; + + /* unlock mode register */ + out_be32((void *)MPC5XXX_SDRAM_CTRL, control | 0x80000000); + + /* precharge all banks */ + out_be32((void *)MPC5XXX_SDRAM_CTRL, control | 0x80000002); + +#ifdef SDRAM_DDR + /* set mode register: extended mode */ + out_be32((void *)MPC5XXX_SDRAM_MODE, SDRAM_EMODE); + + /* set mode register: reset DLL */ + out_be32((void *)MPC5XXX_SDRAM_MODE, SDRAM_MODE | 0x04000000); +#endif + + /* precharge all banks */ + out_be32((void *)MPC5XXX_SDRAM_CTRL, control | 0x80000002); + + /* auto refresh */ + out_be32((void *)MPC5XXX_SDRAM_CTRL, control | 0x80000004); + + /* set mode register */ + out_be32((void *)MPC5XXX_SDRAM_MODE, SDRAM_MODE); + + /* normal operation */ + out_be32((void *)MPC5XXX_SDRAM_CTRL, control); +} +#endif + +/* + * ATTENTION: Although partially referenced initdram does NOT make real use + * use of CONFIG_SYS_SDRAM_BASE. The code does not work if + * CONFIG_SYS_SDRAM_BASE is something else than 0x00000000. + */ +phys_size_t initdram(int board_type) +{ + ulong dramsize = 0; + ulong dramsize2 = 0; + uint svr, pvr; +#if !defined(CONFIG_SYS_RAMBOOT) && \ + (defined(CONFIG_SPL) && defined(CONFIG_SPL_BUILD)) + ulong test1, test2; + + /* setup SDRAM chip selects */ + out_be32((void *)MPC5XXX_SDRAM_CS0CFG, 0x0000001e); /* 2GB at 0x0 */ + out_be32((void *)MPC5XXX_SDRAM_CS1CFG, 0x80000000); /* disabled */ + + /* setup config registers */ + out_be32((void *)MPC5XXX_SDRAM_CONFIG1, SDRAM_CONFIG1); + out_be32((void *)MPC5XXX_SDRAM_CONFIG2, SDRAM_CONFIG2); + +#ifdef SDRAM_DDR + /* set tap delay */ + out_be32((void *)MPC5XXX_CDM_PORCFG, SDRAM_TAPDELAY); +#endif + + /* find RAM size using SDRAM CS0 only */ + sdram_start(0); + test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000); + sdram_start(1); + test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000); + if (test1 > test2) { + sdram_start(0); + dramsize = test1; + } else { + dramsize = test2; + } + + /* memory smaller than 1MB is impossible */ + if (dramsize < (1 << 20)) + dramsize = 0; + + /* set SDRAM CS0 size according to the amount of RAM found */ + if (dramsize > 0) { + out_be32((void *)MPC5XXX_SDRAM_CS0CFG, + 0x13 + __builtin_ffs(dramsize >> 20) - 1); + } else { + out_be32((void *)MPC5XXX_SDRAM_CS0CFG, 0); /* disabled */ + } +#else /* CONFIG_SYS_RAMBOOT */ + + /* retrieve size of memory connected to SDRAM CS0 */ + dramsize = in_be32((void *)MPC5XXX_SDRAM_CS0CFG) & 0xFF; + if (dramsize >= 0x13) + dramsize = (1 << (dramsize - 0x13)) << 20; + else + dramsize = 0; + + /* retrieve size of memory connected to SDRAM CS1 */ + dramsize2 = in_be32((void *)MPC5XXX_SDRAM_CS1CFG) & 0xFF; + if (dramsize2 >= 0x13) + dramsize2 = (1 << (dramsize2 - 0x13)) << 20; + else + dramsize2 = 0; + +#endif /* CONFIG_SYS_RAMBOOT */ + + /* + * On MPC5200B we need to set the special configuration delay in the + * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM + * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190: + * + * "The SDelay should be written to a value of 0x00000004. It is + * required to account for changes caused by normal wafer processing + * parameters." + */ + svr = get_svr(); + pvr = get_pvr(); + if ((SVR_MJREV(svr) >= 2) && (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4)) + out_be32((void *)MPC5XXX_SDRAM_SDELAY, 0x04); + + return dramsize + dramsize2; +} + +static void get_revisions(int *failsavelevel, int *digiboardversion, + int *fpgaversion) +{ + struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT; + u8 val; + + /* + * Figure out failsavelevel + * see ticket dsvk#59 + */ + *failsavelevel = 0; /* 0=failsave, 1=board ok, 2=fpga ok */ + + /* read digitalboard-version from TMR[2..4] */ + val = 0; + val |= (gpt->gpt2.sr & (1 << (31 - 23))) ? (1) : 0; + val |= (gpt->gpt3.sr & (1 << (31 - 23))) ? (1 << 1) : 0; + val |= (gpt->gpt4.sr & (1 << (31 - 23))) ? (1 << 2) : 0; + *digiboardversion = val; + + if (*digiboardversion == 0) { + *failsavelevel = 1; /* digiboard-version ok */ + + /* read fpga-version from TMR[5..7] */ + val = 0; + val |= (gpt->gpt5.sr & (1 << (31 - 23))) ? (1) : 0; + val |= (gpt->gpt6.sr & (1 << (31 - 23))) ? (1 << 1) : 0; + val |= (gpt->gpt7.sr & (1 << (31 - 23))) ? (1 << 2) : 0; + *fpgaversion = val; + + if (*fpgaversion == 1) + *failsavelevel = 2; /* fpga-version ok */ + } +} + +/* + * This function is called from the SPL U-Boot version for + * early init stuff, that needs to be done for OS (e.g. Linux) + * booting. Doing it later in the real U-Boot would not work + * in case that the SPL U-Boot boots Linux directly. + */ +void spl_board_init(void) +{ + struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO; + struct mpc5xxx_mmap_ctl *mm = + (struct mpc5xxx_mmap_ctl *)CONFIG_SYS_MBAR; + int digiboardversion; + int failsavelevel; + int fpgaversion; + u32 val; + + get_revisions(&failsavelevel, &digiboardversion, &fpgaversion); + + val = in_be32(&mm->ipbi_ws_ctrl); + + /* first clear bits 19..21 (CS3...5) */ + val &= ~((1 << 19) | (1 << 20) | (1 << 21)); + if (failsavelevel == 2) { + /* FPGA ok */ + val |= (1 << 19) | (1 << 21); + } + + if (failsavelevel >= 1) { + /* at least digiboard-version ok */ + val |= (1 << 20); + } + + /* And write new value back to register */ + out_be32(&mm->ipbi_ws_ctrl, val); + + /* + * No need to change the pin multiplexing (MPC5XXX_GPS_PORT_CONFIG) + * as all 3 config versions (failsave level) have the same setup. + */ + + /* + * Setup gpio_wkup_7 as watchdog AS INPUT to disable it - see + * ticket #60 + * + * MPC5XXX_WU_GPIO_DIR direction is already 0 (INPUT) + * set bit 0(msb) to 1 + */ + setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, 1 << (31 - 0)); + + /* setup GPIOs for status-leds if needed - see ticket #57 */ + if (failsavelevel > 0) { + /* digiboard-version is OK */ + /* LED is LOW ACTIVE - so deactivate by set output to 1 */ + gpio->simple_dvo |= 1 << (31 - 12); + gpio->simple_dvo |= 1 << (31 - 13); + /* set GPIO direction to output */ + gpio->simple_ddr |= 1 << (31 - 12); + gpio->simple_ddr |= 1 << (31 - 13); + /* open drain config is set to "normal output" at reset */ + /* gpio->simple_ode &=~ ( 1 << (31-12) ); */ + /* gpio->simple_ode &=~ ( 1 << (31-13) ); */ + /* enable as GPIO */ + gpio->simple_gpioe |= 1 << (31 - 12); + gpio->simple_gpioe |= 1 << (31 - 13); + } + + /* setup fpga irq - see ticket #65 */ + if (failsavelevel > 1) { + /* + * The main irq initialisation is done in interrupts.c + * mpc5xxx_init_irq + */ + struct mpc5xxx_intr *intr = + (struct mpc5xxx_intr *)(MPC5XXX_ICTL); + + setbits_be32(&intr->ctrl, 0x08C01801); + + /* + * The MBAR+0x0524 Bit 21:23 CSe are ignored here due to the + * already cleared (intr_ctrl) MBAR+0x0510 ECLR[0] bit above + */ + } + +} + +int checkboard(void) +{ + int digiboardversion; + int failsavelevel; + int fpgaversion; + + get_revisions(&failsavelevel, &digiboardversion, &fpgaversion); + + puts("Board: A3M071\n"); + printf("Rev: failsave level %u\n", failsavelevel); + printf(" digiboard IO version %u\n", digiboardversion); + if (failsavelevel > 0) /* only if fpga-version red */ + printf(" fpga IO version %u\n", fpgaversion); + + return 0; +} + +/* miscellaneous platform dependent initialisations */ +int misc_init_r(void) +{ + /* adjust flash start and offset to detected values */ + gd->bd->bi_flashstart = flash_info[0].start[0]; + gd->bd->bi_flashoffset = 0; + + /* adjust mapping */ + out_be32((void *)MPC5XXX_BOOTCS_START, + START_REG(gd->bd->bi_flashstart)); + out_be32((void *)MPC5XXX_CS0_START, START_REG(gd->bd->bi_flashstart)); + out_be32((void *)MPC5XXX_BOOTCS_STOP, + STOP_REG(gd->bd->bi_flashstart, gd->bd->bi_flashsize)); + out_be32((void *)MPC5XXX_CS0_STOP, + STOP_REG(gd->bd->bi_flashstart, gd->bd->bi_flashsize)); + + return 0; +} + +#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) +void ft_board_setup(void *blob, bd_t * bd) +{ + ft_cpu_setup(blob, bd); +} +#endif /* defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP) */ + +#ifdef CONFIG_SPL_OS_BOOT +/* + * A3M071 specific implementation of spl_start_uboot() + * + * RETURN + * 0 if booting into OS is selected (default) + * 1 if booting into U-Boot is selected + */ +int spl_start_uboot(void) +{ + char s[8]; + + env_init(); + getenv_f("boot_os", s, sizeof(s)); + if ((s != NULL) && (strcmp(s, "yes") == 0)) + return 0; + + return 1; +} +#endif diff --git a/board/a3m071/mt46v16m16-75.h b/board/a3m071/mt46v16m16-75.h new file mode 100644 index 0000000..e49e996 --- /dev/null +++ b/board/a3m071/mt46v16m16-75.h @@ -0,0 +1,32 @@ +/* + * (C) Copyright 2004 + * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#define SDRAM_DDR /* is DDR */ + +#if defined(CONFIG_MPC5200) +/* Settings for XLB = 132 MHz */ +#define SDRAM_MODE 0x018D0000 +#define SDRAM_EMODE 0x40090000 +#define SDRAM_CONTROL 0x704f0f00 +#define SDRAM_CONFIG1 0x73722930 +#define SDRAM_CONFIG2 0x47770000 +#define SDRAM_TAPDELAY 0x10000000 + +#else +#error CONFIG_MPC5200 not defined +#endif diff --git a/boards.cfg b/boards.cfg index 3e19647..ada6c63 100644 --- a/boards.cfg +++ b/boards.cfg @@ -458,6 +458,7 @@ mpc5121ads powerpc mpc512x mpc5121ads freesca mpc5121ads_rev2 powerpc mpc512x mpc5121ads freescale - mpc5121ads:MPC5121ADS_REV2 cmi_mpc5xx powerpc mpc5xx cmi PATI powerpc mpc5xx pati mpl +a3m071 powerpc mpc5xxx a3m071 a4m072 powerpc mpc5xxx a4m072 BC3450 powerpc mpc5xxx bc3450 canmb powerpc mpc5xxx diff --git a/include/configs/a3m071.h b/include/configs/a3m071.h new file mode 100644 index 0000000..df3b4ae --- /dev/null +++ b/include/configs/a3m071.h @@ -0,0 +1,380 @@ +/* + * Copyright 2012 Stefan Roese sr@denx.de + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +/* + * High Level Configuration Options + * (easy to change) + */ + +#define CONFIG_MPC5200 +#define CONFIG_MPC5xxx 1 /* This is an MPC5xxx CPU */ +#define CONFIG_A3M071 /* ... on A3M071 board */ +#define CONFIG_MPC5200_DDR /* ... use DDR RAM */ + +#define CONFIG_SYS_TEXT_BASE 0x01000000 /* boot low for 32 MiB boards */ + +#define CONFIG_SYS_MPC5XXX_CLKIN 33000000 /* ... running at 33MHz */ + +#define CONFIG_MISC_INIT_R +#define CONFIG_SYS_LOWBOOT /* Enable lowboot */ + +/* + * Serial console configuration + */ +#define CONFIG_PSC_CONSOLE 1 /* console is on PSC1 */ +#define CONFIG_BAUDRATE 115200 /* ... at 115200 bps */ +#define CONFIG_SYS_BAUDRATE_TABLE \ + { 9600, 19200, 38400, 57600, 115200, 230400 } + +/* + * Command line configuration. + */ +#include <config_cmd_default.h> + +#define CONFIG_CMD_BSP +#define CONFIG_CMD_CACHE +#define CONFIG_CMD_DATE +#define CONFIG_CMD_EEPROM +#define CONFIG_CMD_I2C +#define CONFIG_CMD_MII +#define CONFIG_CMD_REGINFO + +/* + * IPB Bus clocking configuration. + */ +#define CONFIG_SYS_IPBCLK_EQUALS_XLBCLK /* define for 133MHz speed */ +/* define for 66MHz speed - undef for 33MHz PCI clock speed */ +#undef CONFIG_SYS_PCICLK_EQUALS_IPBCLK_DIV2 + +/* pass open firmware flat tree */ +#define CONFIG_OF_LIBFDT +#define CONFIG_OF_BOARD_SETUP + +/* maximum size of the flat tree (8K) */ +#define OF_FLAT_TREE_MAX_SIZE 8192 + +#define OF_CPU "PowerPC,5200@0" +#define OF_SOC "soc5200@f0000000" +#define OF_TBCLK (bd->bi_busfreq / 4) +#define OF_STDOUT_PATH "/soc5200@f0000000/serial@2000" + +/* + * I2C configuration + */ +#define CONFIG_HARD_I2C /* I2C with hardware support */ +#define CONFIG_SYS_I2C_MODULE 2 /* Select I2C module #1 or #2 */ + +#define CONFIG_SYS_I2C_SPEED 100000 /* 100 kHz */ +#define CONFIG_SYS_I2C_SLAVE 0x7F + +/* + * EEPROM configuration + */ +#define CONFIG_SYS_I2C_EEPROM_ADDR 0x53 +#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2 +#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 6 +#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 10 + +/* + * RTC configuration + */ +#define CONFIG_RTC_PCF8563 +#define CONFIG_SYS_I2C_RTC_ADDR 0x51 + +/* + * NOR flash configuration + */ +#define CONFIG_SYS_FLASH_BASE 0xfc000000 +#define CONFIG_SYS_FLASH_SIZE 0x01000000 +#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0x40000) + +#define CONFIG_SYS_MAX_FLASH_BANKS 1 +#define CONFIG_SYS_MAX_FLASH_SECT 256 +#define CONFIG_SYS_FLASH_ERASE_TOUT 240000 +#define CONFIG_SYS_FLASH_WRITE_TOUT 500 +#define CONFIG_SYS_FLASH_LOCK_TOUT 5 +#define CONFIG_SYS_FLASH_UNLOCK_TOUT 10000 +#define CONFIG_SYS_FLASH_PROTECTION +#define CONFIG_FLASH_CFI_DRIVER +#define CONFIG_SYS_FLASH_CFI +#define CONFIG_SYS_FLASH_EMPTY_INFO +#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE + +/* + * Environment settings + */ +#define CONFIG_ENV_IS_IN_FLASH +#define CONFIG_ENV_SIZE 0x10000 +#define CONFIG_ENV_SECT_SIZE 0x20000 +#define CONFIG_ENV_OVERWRITE + +/* + * Memory map + */ +#define CONFIG_SYS_MBAR 0xf0000000 +#define CONFIG_SYS_SDRAM_BASE 0x00000000 +#define CONFIG_SYS_DEFAULT_MBAR 0x80000000 + +/* Use SRAM until RAM will be available */ +#define CONFIG_SYS_INIT_RAM_ADDR MPC5XXX_SRAM +#define CONFIG_SYS_INIT_RAM_END MPC5XXX_SRAM_SIZE + + +#define CONFIG_SYS_GBL_DATA_SIZE 128 +#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_END - \ + CONFIG_SYS_GBL_DATA_SIZE) +#define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET + +#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE + +#define CONFIG_SYS_MONITOR_LEN (256 << 10) +#define CONFIG_SYS_MALLOC_LEN (1 << 20) +#define CONFIG_SYS_BOOTMAPSZ (8 << 20) + +/* + * Ethernet configuration + */ +#define CONFIG_MPC5xxx_FEC +#define CONFIG_MPC5xxx_FEC_MII100 +#define CONFIG_PHY_ADDR 0x00 + +/* + * GPIO configuration + */ + +/* + * GPIO-config depends on failsave-level + * failsave 0 means just MPX-config, no digiboard, no fpga + * 1 means digiboard ok + * 2 means fpga ok + */ + +/* for failsave-level 0 - full failsave */ +#define CONFIG_SYS_GPS_PORT_CONFIG 0x1005C005 +/* for failsave-level 1 - only digiboard ok */ +#define CONFIG_SYS_GPS_PORT_CONFIG_1 0x1005C005 +/* for failsave-level 2 - all ok */ +#define CONFIG_SYS_GPS_PORT_CONFIG_2 0x1005C005 + +/* + * Configuration matrix + * MSB LSB + * failsave 0 0x1005C005 00010000000001011100000001100101 ( full failsave ) + * failsave 1 0x1005C005 00010000000001011100000001100101 ( digib.-ver ok ) + * failsave 2 0x1005C005 00010000000001011100000001100101 ( all ok ) + * || ||| || | ||| | | | | + * || ||| || | ||| | | | | bit rev name + * ++-+++-++--+---+++-+---+---+---+- 0 31 CS1 + * +-+++-++--+---+++-+---+---+---+- 1 30 LPTZ + * ||| || | ||| | | | | 2 29 ALTs + * +++-++--+---+++-+---+---+---+- 3 28 ALTs + * ++-++--+---+++-+---+---+---+- 4 27 CS7 + * +-++--+---+++-+---+---+---+- 5 26 CS6 + * || | ||| | | | | 6 25 ATA + * ++--+---+++-+---+---+---+- 7 24 ATA + * +--+---+++-+---+---+---+- 8 23 IR_USB_CLK + * | ||| | | | | 9 22 IRDA + * | ||| | | | | 10 21 IRDA + * +---+++-+---+---+---+- 11 20 IRDA + * ||| | | | | 12 19 Ether + * ||| | | | | 13 18 Ether + * ||| | | | | 14 17 Ether + * +++-+---+---+---+- 15 16 Ether + * ++-+---+---+---+- 16 15 PCI_DIS + * +-+---+---+---+- 17 14 USB_SE + * | | | | 18 13 USB + * +---+---+---+- 19 12 USB + * | | | 20 11 PSC3 + * | | | 21 10 PSC3 + * | | | 22 9 PSC3 + * +---+---+- 23 8 PSC3 + * | | 24 7 - + * | | 25 6 PSC2 + * | | 26 5 PSC2 + * +---+- 27 4 PSC2 + * | 28 3 - + * | 29 2 PSC1 + * | 30 1 PSC1 + * +- 31 0 PSC1 + */ + + +/* + * Miscellaneous configurable options + */ +#define CONFIG_SYS_LONGHELP +#define CONFIG_SYS_PROMPT "=> " + +#define CONFIG_CMDLINE_EDITING +#define CONFIG_SYS_HUSH_PARSER +#define CONFIG_SYS_PROMPT_HUSH_PS2 "> " + +#if defined(CONFIG_CMD_KGDB) +#define CONFIG_SYS_CBSIZE 1024 +#else +#define CONFIG_SYS_CBSIZE 256 +#endif +#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) +#define CONFIG_SYS_MAXARGS 16 +#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE + +#define CONFIG_SYS_MEMTEST_START 0x00100000 +#define CONFIG_SYS_MEMTEST_END 0x00f00000 + +#define CONFIG_SYS_LOAD_ADDR 0x00100000 + +#define CONFIG_SYS_HZ 1000 +#define CONFIG_LOOPW +#define CONFIG_SYS_CONSOLE_INFO_QUIET /* don't print console @ startup*/ + +/* + * Various low-level settings + */ +#define CONFIG_SYS_HID0_INIT (HID0_ICE | HID0_ICFI) +#define CONFIG_SYS_HID0_FINAL HID0_ICE + +#define CONFIG_SYS_BOOTCS_START CONFIG_SYS_FLASH_BASE +#define CONFIG_SYS_BOOTCS_SIZE CONFIG_SYS_FLASH_SIZE +#define CONFIG_SYS_CS0_START CONFIG_SYS_FLASH_BASE +#define CONFIG_SYS_CS0_SIZE CONFIG_SYS_FLASH_SIZE +#define CONFIG_SYS_CS2_START 0xe0000000 +#define CONFIG_SYS_CS2_SIZE 0x00100000 + +/* FPGA slave io (512kiB) - see ticket #66 */ +#define CONFIG_SYS_CS3_START 0xE9000000 +#define CONFIG_SYS_CS3_SIZE 0x00080000 +/* 00000000 00110010 1 0 1 1 10 01 00 00 0 0 0 0 = 0x0032B900 */ +#define CONFIG_SYS_CS3_CFG 0x0032B900 + +/* Diagnosis Interface - see ticket #63 */ +#define CONFIG_SYS_CS4_START 0xEA000000 +#define CONFIG_SYS_CS4_SIZE 0x00000001 +/* 00000000 00000010 1 0 1 1 10 01 00 00 0 0 0 0 = 0x0002B900 */ +#define CONFIG_SYS_CS4_CFG 0x0002B900 + +/* FPGA master io (64kiB) - see ticket #66 */ +#define CONFIG_SYS_CS5_START 0xE8000000 +#define CONFIG_SYS_CS5_SIZE 0x00010000 +/* 00000000 00110010 1 0 1 1 10 01 00 00 0 0 0 0 = 0x0032B900 */ +#define CONFIG_SYS_CS5_CFG 0x0032B900 + +#ifdef CONFIG_SYS_PCICLK_EQUALS_IPBCLK_DIV2 /* for pci_clk = 66 MHz */ +#define CONFIG_SYS_BOOTCS_CFG 0x0006F900 +#define CONFIG_SYS_CS1_CFG 0x0004FB00 +#define CONFIG_SYS_CS2_CFG 0x0006F90C +#else /* for pci_clk = 33 MHz */ +#define CONFIG_SYS_BOOTCS_CFG 0x0002F900 +#define CONFIG_SYS_CS1_CFG 0x0001FB00 +#define CONFIG_SYS_CS2_CFG 0x0002F90C +#endif + +#define CONFIG_SYS_CS_BURST 0x00000000 +/* set DC for FPGA CS5 and CS3 to 0 - see ticket #66 */ +/* R 7 R 6 R 5 R 4 R 3 R 2 R 1 R 0 */ +/* 00 11 00 11 00 00 00 11 00 00 00 00 00 00 00 00 */ +#define CONFIG_SYS_CS_DEADCYCLE 0x33030000 + +#define CONFIG_SYS_RESET_ADDRESS 0xff000000 + +/* + * Environment Configuration + */ + +#define CONFIG_BOOTDELAY 0 /* -1 disables auto-boot */ +#undef CONFIG_BOOTARGS +#define CONFIG_ZERO_BOOTDELAY_CHECK + +#define CONFIG_PREBOOT "echo;" \ + "echo Type "run flash_mtd" to boot from flash with mtd filesystem;" \ + "echo Type "run net_nfs" to boot from tftp with nfs filesystem;" \ + "echo" + +#undef CONFIG_BOOTARGS + +#define CONFIG_SYS_OS_BASE 0xfc080000 +#define CONFIG_SYS_FDT_BASE 0xfc060000 + +#define xstr(s) str(s) +#define str(s) #s + +#define CONFIG_EXTRA_ENV_SETTINGS \ + "netdev=eth0\0" \ + "verify=no\0" \ + "consoledev=ttyPSC0\0" \ + "nfsargs=setenv bootargs root=/dev/nfs rw " \ + "nfsroot=${serverip}:${rootpath}\0" \ + "ramargs=setenv bootargs root=/dev/ram rw\0" \ + "mtdargs=setenv bootargs root=/dev/mtdblock4 rw rootfstype=jffs2\0"\ + "addip=setenv bootargs ${bootargs} " \ + "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \ + ":${hostname}:${netdev}:off panic=1\0" \ + "addtty=setenv bootargs ${bootargs} " \ + "console=${consoledev},${baudrate}\0" \ + "flash_nfs=run nfsargs addip addtty;" \ + "bootm ${kernel_addr} - ${fdtaddr}\0" \ + "flash_mtd=run mtdargs addip addtty;" \ + "bootm ${kernel_addr} - ${fdtaddr}\0" \ + "flash_self=run ramargs addip addtty;" \ + "bootm ${kernel_addr} ${ramdisk_addr} ${fdtaddr}\0" \ + "net_nfs=sleep 2; tftp ${loadaddr} ${bootfile};" \ + "tftp c00000 ${fdtfile};" \ + "run nfsargs addip addtty;" \ + "bootm ${loadaddr} - c00000\0" \ + "load=tftp ${loadaddr} u-boot.bin\0" \ + "update=protect off fc000000 fc03ffff; " \ + "era fc000000 fc03ffff; cp.b ${loadaddr} fc000000 40000\0"\ + "upd=run load;run update\0" \ + "fdtaddr=" xstr(CONFIG_SYS_FDT_BASE) "\0" \ + "fdtfile=dtbFile\0" \ + "kernel_addr=" xstr(CONFIG_SYS_OS_BASE) "\0" \ + "" + +#define CONFIG_BOOTCOMMAND "run flash_mtd" + +/* + * SPL related defines + */ +#define CONFIG_SPL +#define CONFIG_SPL_FRAMEWORK +#define CONFIG_SPL_NOR_SUPPORT +#define CONFIG_SPL_TEXT_BASE 0xfc000000 +#define CONFIG_SPL_START_S_PATH "arch/powerpc/cpu/mpc5xxx" +#define CONFIG_SPL_LDSCRIPT "arch/powerpc/cpu/mpc5xxx/u-boot-spl.lds" +#define CONFIG_SPL_LIBCOMMON_SUPPORT /* image.c */ +#define CONFIG_SPL_LIBGENERIC_SUPPORT /* string.c */ +#define CONFIG_SPL_SERIAL_SUPPORT + +/* Place BSS for SPL near end of SDRAM */ +#define CONFIG_SPL_BSS_START_ADDR ((128 - 1) << 20) +#define CONFIG_SPL_BSS_MAX_SIZE (64 << 10) + +#define CONFIG_SPL_OS_BOOT +/* Place patched DT blob (fdt) at this address */ +#define CONFIG_SYS_SPL_ARGS_ADDR 0x01800000 + +/* Settings for real U-Boot to be loaded from NOR flash */ +#ifndef __ASSEMBLY__ +extern char __spl_flash_end[]; +#endif +#define CONFIG_SYS_UBOOT_BASE __spl_flash_end +#define CONFIG_SYS_SPL_MAX_LEN (32 << 10) +#define CONFIG_SYS_UBOOT_START 0x1000100 + +#endif /* __CONFIG_H */

This patch enabled boards using the SPL framework to set an entry point in the U-Boot mkimage image "u-boot.img". Until now the entry point in the header has been set to 0. By setting CONFIG_SYS_UBOOT_START in the board header, boards can override this default location.
This will be used by the upcoming a3m071 MPC5200 board port.
Signed-off-by: Stefan Roese sr@denx.de ---
Makefile | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile index 328347d..280d7c0 100644 --- a/Makefile +++ b/Makefile @@ -444,9 +444,18 @@ $(obj)u-boot.ldr.hex: $(obj)u-boot.ldr $(obj)u-boot.ldr.srec: $(obj)u-boot.ldr $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
+# +# U-Boot entry point, needed for booting of full-blown U-Boot +# from the SPL U-Boot version. +# +ifndef CONFIG_SYS_UBOOT_START +CONFIG_SYS_UBOOT_START := 0 +endif + $(obj)u-boot.img: $(obj)u-boot.bin $(obj)tools/mkimage -A $(ARCH) -T firmware -C none \ - -O u-boot -a $(CONFIG_SYS_TEXT_BASE) -e 0 \ + -O u-boot -a $(CONFIG_SYS_TEXT_BASE) \ + -e $(CONFIG_SYS_UBOOT_START) \ -n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \ sed -e 's/"[ ]*$$/ for $(BOARD) board"/') \ -d $< $@

This new make target "u-boot-img.bin" consists of the U-Boot SPL image with the real, full-blown U-Boot image directly attached to it. The full-blown U-Boot image has the mkimage header included, with its load-address and entry-point.
This will be used by the upcoming a3m071 MPC5200 board port.
Signed-off-by: Stefan Roese sr@denx.de
--- Changes in v4: - Drop patch fdt: cmd_fdt: Call fdt_chosen() from "fdt boardsetup"
Makefile | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/Makefile b/Makefile index 280d7c0..d472060 100644 --- a/Makefile +++ b/Makefile @@ -536,6 +536,9 @@ $(obj)u-boot-nodtb-tegra.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin endif endif
+$(obj)u-boot-img.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img + cat $(obj)spl/u-boot-spl.bin $(obj)u-boot.img > $@ + ifeq ($(CONFIG_SANDBOX),y) GEN_UBOOT = \ cd $(LNDIR) && $(CC) $(SYMS) -T $(obj)u-boot.lds \

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
On 10/23/12 01:28, Stefan Roese wrote:
This patchset ports the SPL framework to powerpc. Its based on the SPL generalization lately done by Tom Rini. The patches is based on the current "master" branch.
Additionally, a new MPC5200 board port is included, the a3m071 board port. This board port uses this SPL framework mainly to speed up booting into the OS (Linux of course). Detection of Linux vs. U-Boot booting is done here by checking the environment variable "boot_os". If "boot_os" is set to "yes", then the OS (Linux) is booted. Otherwise the "real" U-Boot is booted.
Tom, what do you think? I would really like to get this included now. Would you prefer if I would push this patch series into a git repo where you could pull from?
Andy, can you comment on this series as well? I'm happy to pull it in from patchwork, just want one more set of eyes on it. Thanks!
- -- Tom

Hi,
On Tue, 23 Oct 2012 10:28:28 +0200 Stefan Roese sr@denx.de wrote: ...
Stefan Roese (7): powerpc: Extract EPAPR_MAGIC constants into processor.h SPL: Port SPL framework to powerpc env: Enable getenv_f() for SPL_BUILD mpc5200: Add SPL support mpc5200: Add a3m071 board support Makefile: Add possibility to set entry-point for u-boot.img Makefile: Add target for combined spl/u-boot.bin & u-boot.img
Applied this series to staging/agust@denx.de, rebased patch 7/7 when applying. Thanks!
Anatolij
participants (3)
-
Anatolij Gustschin
-
Stefan Roese
-
Tom Rini