$(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 > $@
+# PPC4xx needs the SPL at the end of the image, since the reset vector
+# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
+# and need to introduce a new build target with the full blown U-Boot
+# at the start padded up to the start of the SPL image. And then concat
+# the SPL image to the end.
+$(obj)u-boot-img-spl-at-end.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
+ tr "\000" "\377" < /dev/zero | dd ibs=1 count=$(CONFIG_UBOOT_PAD_TO) \
+ of=$(obj)u-boot-pad.img 2>/dev/null
+ dd if=$(obj)u-boot.img of=$(obj)u-boot-pad.img \
+ conv=notrunc 2>/dev/null
+ cat $(obj)u-boot-pad.img $(obj)spl/u-boot-spl.bin > $@
+
ifeq ($(CONFIG_SANDBOX),y)
GEN_UBOOT = \
cd $(LNDIR) && $(CC) $(SYMS) -T $(obj)u-boot.lds \
COBJS += uic.o
endif
+ifdef CONFIG_SPL_BUILD
+COBJS-y += spl_boot.o
+endif
+
SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS) $(COBJS-y))
START := $(addprefix $(obj),$(START))
--- /dev/null
+/*
+ * Copyright (C) 2013 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;
+
+/*
+ * Return selected boot device. On PPC4xx 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)
+{
+ /*
+ * 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!!! */
+}
*
* Use r12 to access the GOT
*/
-#if !defined(CONFIG_NAND_SPL)
+#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SPL_BUILD)
START_GOT
GOT_ENTRY(_GOT2_TABLE_)
GOT_ENTRY(_FIXUP_TABLE_)
END_GOT
#endif /* CONFIG_NAND_SPL */
-#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)
+#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) && \
+ !defined(CONFIG_SPL_BUILD)
/*
* NAND U-Boot image is started from offset 0
*/
bl _start_440
#endif
+#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 PPC4xx. 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 */
+#endif
+
/*
* 440 Startup -- on reset only the top 4k of the effective
* address space is mapped in by an entry in the instruction
* r3 - 1st arg to board_init(): IMMP pointer
* r4 - 2nd arg to board_init(): boot flag
*/
-#ifndef CONFIG_NAND_SPL
+#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SPL_BUILD)
.text
.long 0x27051956 /* U-Boot Magic Number */
.globl version_string
.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 PPC4xx. 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 */
+#endif
+
/*****************************************************************************/
#if defined(CONFIG_440)
#ifdef CONFIG_NAND_SPL
bl nand_boot_common /* will not return */
#else
+#ifndef CONFIG_SPL_BUILD
GET_GOT
+#endif
bl cpu_init_f /* run low-level CPU init code (from Flash) */
bl board_init_f
/*----------------------------------------------------------------------- */
-#ifndef CONFIG_NAND_SPL
+#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SPL_BUILD)
/*
* This code finishes saving the registers to the exception frame
* and jumps to the appropriate handler for the exception.
lwbrx r3,r0,r3
blr
+#if !defined(CONFIG_SPL_BUILD)
/*
* void relocate_code (addr_sp, gd, addr_moni)
*
mtlr r4 /* restore link register */
blr
+#endif /* CONFIG_SPL_BUILD */
#if defined(CONFIG_440)
/*----------------------------------------------------------------------------+
--- /dev/null
+/*
+ * Copyright 2012-2013 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
+{
+#ifdef CONFIG_440
+ .bootpg 0xfffff000 :
+ {
+ arch/powerpc/cpu/ppc4xx/start.o (.bootpg)
+
+ /*
+ * PPC440 board need a board specific object with the
+ * TLB definitions. This needs to get included right after
+ * start.o, since the first shadow TLB only covers 4k
+ * of address space.
+ */
+ CONFIG_BOARDDIR/init.o (.bootpg)
+ } > flash
+#endif
+
+ .resetvec 0xFFFFFFFC :
+ {
+ KEEP(*(.resetvec))
+ } > flash
+
+ .text :
+ {
+ __start = .;
+ arch/powerpc/cpu/ppc4xx/start.o (.text)
+ CONFIG_BOARDDIR/init.o (.text)
+ *(.text*)
+ } > flash
+
+ . = ALIGN(4);
+ .data : { *(SORT_BY_ALIGNMENT(.data*)) } > flash
+
+ . = ALIGN(4);
+ .rodata : { *(SORT_BY_ALIGNMENT(.rodata*)) } > flash
+
+ .bss :
+ {
+ . = ALIGN(4);
+ __bss_start = .;
+ *(.bss*)
+ . = ALIGN(4);
+ __bss_end = .;
+ } > sdram
+}
. = ALIGN(256);
__init_end = .;
+#ifndef CONFIG_SPL
#ifdef CONFIG_440
.bootpg RESET_VECTOR_ADDRESS - 0xffc :
{
#if (RESET_VECTOR_ADDRESS == 0xfffffffc)
. |= 0x10;
#endif
+#endif /* CONFIG_SPL */
__bss_start = .;
.bss (NOLOAD) :
/*
- * (C) Copyright 2007-2010
+ * (C) Copyright 2007-2013
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* This program is free software; you can redistribute it and/or
u32 pbcr;
int size_val = 0;
u32 reg;
+#ifndef CONFIG_LCD4_LWMON5
unsigned long usb2d0cr = 0;
unsigned long usb2phy0cr, usb2h0cr = 0;
unsigned long sdr0_pfc1, sdr0_srst;
+#endif
/*
* FLASH stuff...
CONFIG_ENV_ADDR_REDUND + 2 * CONFIG_ENV_SECT_SIZE - 1,
&flash_info[cfi_flash_num_flash_banks - 1]);
+#ifndef CONFIG_LCD4_LWMON5
/*
* USB suff...
*/
/* 7. Reassert internal PHY reset: */
mtsdr(SDR0_SRST1, SDR0_SRST1_USB20PHY);
udelay(1000);
+#endif
/*
* Clear resets
mtsdr(SDR0_SRST1, 0x00000000);
mtsdr(SDR0_SRST0, 0x00000000);
+#ifndef CONFIG_LCD4_LWMON5
printf("USB: Host(int phy) Device(ext phy)\n");
+#endif
/*
* Clear PLB4A0_ACR[WRP]
reg = mfdcr(PLB4A0_ACR) & ~PLB4Ax_ACR_WRP_MASK;
mtdcr(PLB4A0_ACR, reg);
+#ifndef CONFIG_LCD4_LWMON5
/*
* Init matrix keyboard
*/
misc_init_r_kbd();
+#endif
return 0;
}
char buf[64];
int i = getenv_f("serial#", buf, sizeof(buf));
- puts("Board: lwmon5");
+ printf("Board: %s", __stringify(CONFIG_HOSTNAME));
if (i > 0) {
puts(", serial# ");
{
gpio_write_bit(CONFIG_SYS_GPIO_BOARD_RESET, 1);
}
+
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * lwmon5 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;
+}
+
+/*
+ * 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)
+{
+ const gdc_regs *regs = board_get_regs();
+
+ /*
+ * Setup PFC registers, mainly for ethernet support
+ * later on in Linux
+ */
+ board_early_init_f();
+
+ /*
+ * Clear resets
+ */
+ mtsdr(SDR0_SRST1, 0x00000000);
+ mtsdr(SDR0_SRST0, 0x00000000);
+
+ /*
+ * Reset Lime controller
+ */
+ gpio_write_bit(CONFIG_SYS_GPIO_LIME_S, 1);
+ udelay(500);
+ gpio_write_bit(CONFIG_SYS_GPIO_LIME_RST, 1);
+
+ out_be32((void *)CONFIG_SYS_LIME_SDRAM_CLOCK, CONFIG_SYS_MB862xx_CCF);
+ udelay(300);
+ out_be32((void *)CONFIG_SYS_LIME_MMR, CONFIG_SYS_MB862xx_MMR);
+
+ while (regs->index) {
+ out_be32((void *)(CONFIG_SYS_LIME_BASE_0 + GC_DISP_BASE) +
+ regs->index, regs->value);
+ regs++;
+ }
+
+ board_backlight_brightness(DEFAULT_BRIGHTNESS);
+}
+#endif
* Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com
* Robert Snyder, AMCC/IBM, rob.snyder@fr.ibm.com
*
- * (C) Copyright 2007-2008
+ * (C) Copyright 2007-2013
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* This program is free software; you can redistribute it and/or
************************************************************************/
phys_size_t initdram (int board_type)
{
+#if defined(CONFIG_SPL_BUILD) || !defined(CONFIG_LCD4_LWMON5)
/* CL=4 */
mtsdram(DDR0_02, 0x00000000);
* exceptions are enabled.
*/
set_mcsr(get_mcsr());
+#endif /* CONFIG_SPL_BUILD */
return (CONFIG_SYS_MBYTES_SDRAM << 20);
}
korat powerpc ppc4xx
korat_perm powerpc ppc4xx korat - - korat:KORAT_PERMANENT
lwmon5 powerpc ppc4xx
+lcd4_lwmon5 powerpc ppc4xx lwmon5 - - lwmon5:LCD4_LWMON5
pcs440ep powerpc ppc4xx
quad100hd powerpc ppc4xx
sbc405 powerpc ppc4xx
CPPFLAGS += -DCONFIG_SPL_PAD_TO=$(CONFIG_SPL_PAD_TO)
endif
+ifneq ($(CONFIG_UBOOT_PAD_TO),)
+CPPFLAGS += -DCONFIG_UBOOT_PAD_TO=$(CONFIG_UBOOT_PAD_TO)
+endif
+
ifeq ($(CONFIG_SPL_BUILD),y)
CPPFLAGS += -DCONFIG_SPL_BUILD
endif
/*
- * (C) Copyright 2007-2010
+ * (C) Copyright 2007-2013
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* This program is free software; you can redistribute it and/or
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_4xx 1 /* ... PPC4xx family */
-#ifndef CONFIG_SYS_TEXT_BASE
+#ifdef CONFIG_LCD4_LWMON5
+#define CONFIG_SYS_TEXT_BASE 0x01000000 /* SPL U-Boot TEXT_BASE */
+#define CONFIG_HOSTNAME lcd4_lwmon5
+#else
#define CONFIG_SYS_TEXT_BASE 0xFFF80000
+#define CONFIG_HOSTNAME lwmon5
#endif
#define CONFIG_SYS_CLK_FREQ 33300000 /* external freq to pll */
* actual resources get mapped (not physical addresses)
*/
#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE /* Start of U-Boot */
-#define CONFIG_SYS_MONITOR_LEN (0xFFFFFFFF - CONFIG_SYS_MONITOR_BASE + 1)
+#define CONFIG_SYS_MONITOR_LEN 0x80000
#define CONFIG_SYS_MALLOC_LEN (1 << 20) /* Reserved for malloc */
#define CONFIG_SYS_BOOT_BASE_ADDR 0xf0000000
#define CONFIG_SYS_PCI_MEMBASE2 (CONFIG_SYS_PCI_MEMBASE1 + 0x10000000)
#define CONFIG_SYS_PCI_MEMBASE3 (CONFIG_SYS_PCI_MEMBASE2 + 0x10000000)
+#ifndef CONFIG_LCD4_LWMON5
#define CONFIG_SYS_USB2D0_BASE 0xe0000100
#define CONFIG_SYS_USB_DEVICE 0xe0000000
#define CONFIG_SYS_USB_HOST 0xe0000400
+#endif
/*
* Initial RAM & stack pointer
* content during reset (GPT0_COMP6). This way we reserve the OCM (16k)
* for logbuffer only. (GPT0_COMP1-COMP5 are reserved for logbuffer header.)
*/
+#ifndef CONFIG_LCD4_LWMON5
#define CONFIG_SYS_INIT_RAM_DCACHE 1 /* d-cache as init ram */
#define CONFIG_SYS_INIT_RAM_ADDR 0x70000000 /* DCache */
#define CONFIG_SYS_INIT_RAM_SIZE (4 << 10)
#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - \
GENERATED_GBL_DATA_SIZE)
#define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
+#else
+#define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_OCM_BASE
+#define CONFIG_SYS_INIT_RAM_SIZE (4 << 10)
+#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - \
+ GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_OFFSET (CONFIG_SYS_GBL_DATA_OFFSET - 0x4)
+#endif
/* unused GPT0 COMP reg */
#define CONFIG_SYS_POST_WORD_ADDR (CONFIG_SYS_PERIPHERAL_BASE + GPT0_COMP6)
#define CONFIG_SYS_OCM_SIZE (16 << 10)
#define CONFIG_SYS_MBYTES_SDRAM 256
#define CONFIG_SYS_DDR_CACHED_ADDR 0x40000000 /* setup 2nd TLB cached here */
#define CONFIG_DDR_DATA_EYE /* use DDR2 optimization */
+#ifndef CONFIG_LCD4_LWMON5
#define CONFIG_DDR_ECC /* enable ECC */
+#endif
+#ifndef CONFIG_LCD4_LWMON5
/* POST support */
#define CONFIG_POST (CONFIG_SYS_POST_CACHE | \
CONFIG_SYS_POST_CPU | \
#define CONFIG_ALT_LH_ADDR (CONFIG_SYS_PERIPHERAL_BASE + GPT0_COMP1)
#define CONFIG_ALT_LB_ADDR (CONFIG_SYS_OCM_BASE)
#define CONFIG_SYS_CONSOLE_IS_IN_ENV /* Otherwise it catches logbuffer as output */
+#endif
/*
* I2C
#define CONFIG_VIDEO_SW_CURSOR
#define CONFIG_SPLASH_SCREEN
+#ifndef CONFIG_LCD4_LWMON5
/*
* USB/EHCI
*/
#define CONFIG_MAC_PARTITION
#define CONFIG_DOS_PARTITION
#define CONFIG_ISO_PARTITION
+#endif
/*
* BOOTP options
#define CONFIG_CMD_BMP
#endif
+#ifndef CONFIG_LCD4_LWMON5
#ifdef CONFIG_440EPX
#define CONFIG_CMD_USB
#endif
+#endif
/*
* Miscellaneous configurable options
#define CONFIG_MX_CYCLIC 1 /* enable mdc/mwc commands */
#define CONFIG_VERSION_VARIABLE 1 /* include version env variable */
+#define CONFIG_SYS_CONSOLE_INFO_QUIET /* don't print console @ startup*/
+
+#ifndef CONFIG_LCD4_LWMON5
#ifndef DEBUG
#define CONFIG_HW_WATCHDOG 1 /* Use external HW-Watchdog */
#endif
#define CONFIG_WD_PERIOD 40000 /* in usec */
#define CONFIG_WD_MAX_RATE 66600 /* in ticks */
+#endif
/*
* For booting Linux, the board info and command line data
#define CONFIG_KGDB_BAUDRATE 230400 /* speed to run kgdb serial port */
#define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */
#endif
+
+/*
+ * SPL related defines
+ */
+#ifdef CONFIG_LCD4_LWMON5
+#define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
+#define CONFIG_SPL_BOARD_INIT
+#define CONFIG_SPL_NOR_SUPPORT
+#define CONFIG_SPL_TEXT_BASE 0xffff0000 /* last 64 KiB for SPL */
+#define CONFIG_SYS_SPL_MAX_LEN (64 << 10)
+#define CONFIG_UBOOT_PAD_TO 458752 /* decimal for 'dd' */
+#define CONFIG_SPL_START_S_PATH "arch/powerpc/cpu/ppc4xx"
+#define CONFIG_SPL_LDSCRIPT "arch/powerpc/cpu/ppc4xx/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 ((256 - 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
+
+#define CONFIG_SPL_TARGET "u-boot-img-spl-at-end.bin"
+
+/* Settings for real U-Boot to be loaded from NOR flash */
+#define CONFIG_SYS_UBOOT_BASE (-CONFIG_SYS_MONITOR_LEN)
+#define CONFIG_SYS_UBOOT_START 0x01002100
+
+#define CONFIG_SYS_OS_BASE 0xf8000000
+#define CONFIG_SYS_FDT_BASE 0xf87c0000
+#endif
+
#endif /* __CONFIG_H */
projects / karo-tx-uboot.git / commitdiff