CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME
Filename to read to load U-Boot when reading from FAT
+ CONFIG_SPL_MPC83XX_WAIT_FOR_NAND
+ Set this for NAND SPL on PPC mpc83xx targets, so that
+ start.S waits for the rest of the SPL to load before
+ continuing (the hardware starts execution after just
+ loading the first page rather than the full 4K).
+
CONFIG_SPL_NAND_BASE
Include nand_base.c in the SPL. Requires
CONFIG_SPL_NAND_DRIVERS.
LIB = $(obj)lib$(CPU).o
+MINIMAL=
+
+ifdef CONFIG_SPL_BUILD
+ifdef CONFIG_SPL_INIT_MINIMAL
+MINIMAL=y
+endif
+endif
+
START = start.o
+ifdef MINIMAL
+
+COBJS-y += spl_minimal.o
+
+else
+
COBJS-y += traps.o
COBJS-y += cpu.o
COBJS-y += cpu_init.o
endif
COBJS-$(CONFIG_FSL_DDR2) += law.o
+endif # not minimal
+
COBJS := $(COBJS-y)
SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) $(addprefix $(obj),$(COBJS_LN-y:.o=.c))
OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS) $(COBJS_LN-y))
#define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI)
#endif
-#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SYS_RAMBOOT)
+#if defined(CONFIG_NAND_SPL) || \
+ (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_INIT_MINIMAL))
+#define MINIMAL_SPL
+#endif
+
+#if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NAND_SPL) && \
+ !defined(CONFIG_SYS_RAMBOOT)
#define CONFIG_SYS_FLASHBOOT
#endif
GOT_ENTRY(__bss_start)
GOT_ENTRY(__bss_end__)
-#ifndef CONFIG_NAND_SPL
+#ifndef MINIMAL_SPL
GOT_ENTRY(_FIXUP_TABLE_)
GOT_ENTRY(_start)
GOT_ENTRY(_start_of_vectors)
/* Initialise the E300 processor core */
/*------------------------------------------*/
-#ifdef CONFIG_NAND_SPL
+#if (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_MPC83XX_WAIT_FOR_NAND)) || \
+ defined(CONFIG_NAND_SPL)
/* The FCM begins execution after only the first page
* is loaded. Wait for the rest before branching
* to another flash page.
/* NOTREACHED - board_init_f() does not return */
-#ifndef CONFIG_NAND_SPL
+#ifndef MINIMAL_SPL
/*
* Vector Table
*/
lwz r1,GPR1(r1)
SYNC
rfi
-#endif /* !CONFIG_NAND_SPL */
+#endif /* !MINIMAL_SPL */
/*
* This code initialises the E300 processor core
* Note: requires that all cache bits in
* HID0 are in the low half word.
*/
-#ifndef CONFIG_NAND_SPL
+#ifndef MINIMAL_SPL
.globl icache_enable
icache_enable:
mfspr r3, HID0
mfspr r3, HID0
rlwinm r3, r3, (31 - HID0_ICE_SHIFT + 1), 31, 31
blr
-#endif /* !CONFIG_NAND_SPL */
+#endif /* !MINIMAL_SPL */
.globl dcache_enable
dcache_enable:
stw r0,0(r3)
2: bdnz 1b
-#ifndef CONFIG_NAND_SPL
+#ifndef MINIMAL_SPL
/*
* Now adjust the fixups and the pointers to the fixups
* in case we need to move ourselves again.
mr r4, r10 /* Destination Address */
bl board_init_r
-#ifndef CONFIG_NAND_SPL
+#ifndef MINIMAL_SPL
/*
* Copy exception vector code to low memory
*
mtlr r4 /* restore link register */
blr
-#endif /* !CONFIG_NAND_SPL */
+#endif /* !MINIMAL_SPL */
#ifdef CONFIG_SYS_INIT_RAM_LOCK
lock_ram_in_cache:
sync
blr
-#ifndef CONFIG_NAND_SPL
+#ifndef MINIMAL_SPL
.globl unlock_ram_in_cache
unlock_ram_in_cache:
/* invalidate the INIT_RAM section */
sync
mtspr HID0, r3 /* no invalidate, unlock */
blr
-#endif /* !CONFIG_NAND_SPL */
+#endif /* !MINIMAL_SPL */
#endif /* CONFIG_SYS_INIT_RAM_LOCK */
#ifdef CONFIG_SYS_FLASHBOOT
--- /dev/null
+/*
+ * (C) Copyright 2006
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ *
+ * 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
+ */
+
+OUTPUT_ARCH(powerpc)
+SECTIONS
+{
+ . = 0xfff00000;
+ .text : {
+ *(.text*)
+ . = ALIGN(16);
+ *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
+ }
+
+ . = ALIGN(8);
+ .data : {
+ *(.data*)
+ *(.sdata*)
+ _GOT2_TABLE_ = .;
+ KEEP(*(.got2))
+ KEEP(*(.got))
+ PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
+ }
+ __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
+
+ . = ALIGN(8);
+ __bss_start = .;
+ .bss (NOLOAD) : {
+ *(.*bss)
+ }
+ __bss_end__ = .;
+}
+ENTRY(_start)
+ASSERT(__bss_end__ <= 0xfff01000, "NAND bootstrap too big");
endif
ifdef MINIMAL
-COBJS-y += cache.o
+COBJS-y += cache.o time.o
+SOBJS-y += ticks.o
else
SOBJS-y += ppcstring.o
CFLAGS += -DCONFIG_NAND_SPL
SOBJS = start.o ticks.o
-COBJS = nand_boot_fsl_elbc.o $(BOARD).o sdram.o ns16550.o nand_init.o \
+COBJS = nand_boot_fsl_elbc.o $(BOARD).o sdram.o ns16550.o spl_minimal.o \
time.o cache.o
SRCS := $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
$(obj)ns16550.c:
ln -sf $(SRCTREE)/drivers/serial/ns16550.c $(obj)ns16550.c
-$(obj)nand_init.c:
- ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc83xx/nand_init.c $(obj)nand_init.c
+$(obj)spl_minimal.c:
+ ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc83xx/spl_minimal.c $(obj)spl_minimal.c
$(obj)cache.c:
ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $(obj)cache.c
CFLAGS += -DCONFIG_NAND_SPL
SOBJS = start.o ticks.o
-COBJS = nand_boot_fsl_elbc.o $(BOARD).o sdram.o ns16550.o nand_init.o \
+COBJS = nand_boot_fsl_elbc.o $(BOARD).o sdram.o ns16550.o spl_minimal.o \
time.o cache.o
SRCS := $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
$(obj)ns16550.c:
ln -sf $(SRCTREE)/drivers/serial/ns16550.c $(obj)ns16550.c
-$(obj)nand_init.c:
- ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc83xx/nand_init.c $(obj)nand_init.c
+$(obj)spl_minimal.c:
+ ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc83xx/spl_minimal.c $(obj)spl_minimal.c
$(obj)cache.c:
ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $(obj)cache.c
CFLAGS += -DCONFIG_NAND_SPL
SOBJS = start.o ticks.o
-COBJS = nand_boot_fsl_elbc.o $(BOARD).o sdram.o ns16550.o nand_init.o \
+COBJS = nand_boot_fsl_elbc.o $(BOARD).o sdram.o ns16550.o spl_minimal.o \
time.o cache.o
SRCS := $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
@rm -f $@
ln -s $(SRCTREE)/drivers/serial/ns16550.c $@
-$(obj)nand_init.c:
+$(obj)spl_minimal.c:
@rm -f $@
- ln -s $(SRCTREE)/arch/powerpc/cpu/mpc83xx/nand_init.c $@
+ ln -s $(SRCTREE)/arch/powerpc/cpu/mpc83xx/spl_minimal.c $@
$(obj)cache.c:
@rm -f $@
projects / karo-tx-uboot.git / commitdiff