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-rw-r--r--arch/arm/cpu/armv7/am33xx/board.c2
-rw-r--r--arch/arm/cpu/armv7/omap-common/hwinit-common.c3
-rw-r--r--arch/arm/cpu/armv7/omap3/board.c4
-rw-r--r--arch/arm/cpu/armv7/start.S13
-rw-r--r--arch/arm/include/asm/spl.h5
-rw-r--r--arch/arm/lib/Makefile2
-rw-r--r--arch/arm/lib/spl.c72
-rw-r--r--common/spl/spl.c41
-rw-r--r--include/spl.h2
9 files changed, 98 insertions, 46 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c
index c45b19b91..978b184fb 100644
--- a/arch/arm/cpu/armv7/am33xx/board.c
+++ b/arch/arm/cpu/armv7/am33xx/board.c
@@ -166,6 +166,8 @@ void s_init(void)
regVal |= UART_SMART_IDLE_EN;
writel(regVal, &uart_base->uartsyscfg);
+ gd = &gdata;
+
preloader_console_init();
/* Initalize the board header */
diff --git a/arch/arm/cpu/armv7/omap-common/hwinit-common.c b/arch/arm/cpu/armv7/omap-common/hwinit-common.c
index ad8b5acce..9ef10bdf2 100644
--- a/arch/arm/cpu/armv7/omap-common/hwinit-common.c
+++ b/arch/arm/cpu/armv7/omap-common/hwinit-common.c
@@ -124,6 +124,9 @@ void s_init(void)
set_mux_conf_regs();
#ifdef CONFIG_SPL_BUILD
setup_clocks_for_console();
+
+ gd = &gdata;
+
preloader_console_init();
do_io_settings();
#endif
diff --git a/arch/arm/cpu/armv7/omap3/board.c b/arch/arm/cpu/armv7/omap3/board.c
index 42e2fd919..9cee1d9b4 100644
--- a/arch/arm/cpu/armv7/omap3/board.c
+++ b/arch/arm/cpu/armv7/omap3/board.c
@@ -45,6 +45,8 @@
#include <i2c.h>
#include <linux/compiler.h>
+DECLARE_GLOBAL_DATA_PTR;
+
/* Declarations */
extern omap3_sysinfo sysinfo;
static void omap3_setup_aux_cr(void);
@@ -252,6 +254,8 @@ void s_init(void)
#endif
#ifdef CONFIG_SPL_BUILD
+ gd = &gdata;
+
preloader_console_init();
timer_init();
diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S
index 32658eb7a..f26308df1 100644
--- a/arch/arm/cpu/armv7/start.S
+++ b/arch/arm/cpu/armv7/start.S
@@ -164,6 +164,7 @@ call_board_init_f:
/*------------------------------------------------------------------------------*/
+#ifndef CONFIG_SPL_BUILD
/*
* void relocate_code (addr_sp, gd, addr_moni)
*
@@ -194,7 +195,6 @@ copy_loop:
cmp r0, r2 /* until source end address [r2] */
blo copy_loop
-#ifndef CONFIG_SPL_BUILD
/*
* fix .rel.dyn relocations
*/
@@ -241,20 +241,12 @@ _rel_dyn_end_ofs:
_dynsym_start_ofs:
.word __dynsym_start - _start
-#endif /* #ifndef CONFIG_SPL_BUILD */
-
clear_bss:
-#ifdef CONFIG_SPL_BUILD
- /* No relocation for SPL */
- ldr r0, =__bss_start
- ldr r1, =__bss_end__
-#else
ldr r0, _bss_start_ofs
ldr r1, _bss_end_ofs
mov r4, r6 /* reloc addr */
add r0, r0, r4
add r1, r1, r4
-#endif
mov r2, #0x00000000 /* clear */
clbss_l:cmp r0, r1 /* clear loop... */
@@ -281,12 +273,10 @@ jump_2_ram:
* Move vector table
*/
#if !defined(CONFIG_TEGRA20)
-#if !(defined(CONFIG_OMAP44XX) && defined(CONFIG_SPL_BUILD))
/* Set vector address in CP15 VBAR register */
ldr r0, =_start
add r0, r0, r9
mcr p15, 0, r0, c12, c0, 0 @Set VBAR
-#endif
#endif /* !Tegra20 */
ldr r0, _board_init_r_ofs
@@ -302,6 +292,7 @@ jump_2_ram:
_board_init_r_ofs:
.word board_init_r - _start
ENDPROC(relocate_code)
+#endif
/*************************************************************************
*
diff --git a/arch/arm/include/asm/spl.h b/arch/arm/include/asm/spl.h
index ad619905a..62011aaad 100644
--- a/arch/arm/include/asm/spl.h
+++ b/arch/arm/include/asm/spl.h
@@ -26,4 +26,9 @@
/* Platform-specific defines */
#include <asm/arch/spl.h>
+/* Linker symbols. */
+extern char __bss_start[], __bss_end__[];
+
+extern gd_t gdata;
+
#endif
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index bd3b77f2e..3422ac1c5 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -44,6 +44,8 @@ COBJS-y += interrupts.o
COBJS-y += reset.o
SOBJS-$(CONFIG_USE_ARCH_MEMSET) += memset.o
SOBJS-$(CONFIG_USE_ARCH_MEMCPY) += memcpy.o
+else
+COBJS-$(CONFIG_SPL_FRAMEWORK) += spl.o
endif
COBJS-y += cache.o
diff --git a/arch/arm/lib/spl.c b/arch/arm/lib/spl.c
new file mode 100644
index 000000000..f568f619c
--- /dev/null
+++ b/arch/arm/lib/spl.c
@@ -0,0 +1,72 @@
+/*
+ * (C) Copyright 2010-2012
+ * Texas Instruments, <www.ti.com>
+ *
+ * Aneesh V <aneesh@ti.com>
+ * Tom Rini <trini@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
+ */
+#include <common.h>
+#include <config.h>
+#include <spl.h>
+#include <image.h>
+#include <linux/compiler.h>
+
+/* Pointer to as well as the global data structure for SPL */
+DECLARE_GLOBAL_DATA_PTR;
+gd_t gdata __attribute__ ((section(".data")));
+
+/*
+ * In the context of SPL, board_init_f must ensure that any clocks/etc for
+ * DDR are enabled, ensure that the stack pointer is valid, clear the BSS
+ * and call board_init_f. We provide this version by default but mark it
+ * as __weak to allow for platforms to do this in their own way if needed.
+ */
+void __weak board_init_f(ulong dummy)
+{
+ /* Set the stack pointer. */
+ asm volatile("mov sp, %0\n" : : "r"(CONFIG_SPL_STACK));
+
+ /* Clear the BSS. */
+ memset(__bss_start, 0, __bss_end__ - __bss_start);
+
+ /* Set global data pointer. */
+ gd = &gdata;
+
+ board_init_r(NULL, 0);
+}
+
+/*
+ * 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)(int, int, void *)
+ __attribute__ ((noreturn));
+ image_entry_arg_t image_entry =
+ (image_entry_arg_t) spl_image.entry_point;
+ cleanup_before_linux();
+ image_entry(0, CONFIG_MACH_TYPE, arg);
+}
+#endif
diff --git a/common/spl/spl.c b/common/spl/spl.c
index 1562f2a16..3f4101402 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -38,8 +38,7 @@ DECLARE_GLOBAL_DATA_PTR;
u32 *boot_params_ptr = NULL;
struct spl_image_info spl_image;
-/* Define global data structure pointer to it*/
-static gd_t gdata __attribute__ ((section(".data")));
+/* Define board data structure */
static bd_t bdata __attribute__ ((section(".data")));
inline void hang(void)
@@ -49,18 +48,6 @@ inline void hang(void)
;
}
-void board_init_f(ulong dummy)
-{
- /*
- * We call relocate_code() with relocation target same as the
- * CONFIG_SYS_SPL_TEXT_BASE. This will result in relocation getting
- * skipped. Instead, only .bss initialization will happen. That's
- * all we need
- */
- debug(">>board_init_f()\n");
- relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE);
-}
-
/*
* Default function to determine if u-boot or the OS should
* be started. This implementation always returns 1.
@@ -107,24 +94,6 @@ void spl_parse_image_header(const struct image_header *header)
}
}
-/*
- * 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
-static void __noreturn jump_to_image_linux(void *arg)
-{
- debug("Entering kernel arg pointer: 0x%p\n", arg);
- typedef void (*image_entry_arg_t)(int, int, void *)
- __attribute__ ((noreturn));
- image_entry_arg_t image_entry =
- (image_entry_arg_t) spl_image.entry_point;
- cleanup_before_linux();
- image_entry(0, CONFIG_MACH_TYPE, arg);
-}
-#endif
-
static void __noreturn jump_to_image_no_args(void)
{
typedef void __noreturn (*image_entry_noargs_t)(u32 *);
@@ -140,7 +109,7 @@ static void __noreturn jump_to_image_no_args(void)
image_entry((u32 *)boot_params_ptr_addr);
}
-void board_init_r(gd_t *id, ulong dummy)
+void board_init_r(gd_t *dummy1, ulong dummy2)
{
u32 boot_device;
debug(">>spl:board_init_r()\n");
@@ -204,10 +173,12 @@ void board_init_r(gd_t *id, ulong dummy)
}
}
-/* This requires UART clocks to be enabled */
+/*
+ * This requires UART clocks to be enabled. In order for this to work the
+ * caller must ensure that the gd pointer is valid.
+ */
void preloader_console_init(void)
{
- gd = &gdata;
gd->bd = &bdata;
gd->flags |= GD_FLG_RELOC;
gd->baudrate = CONFIG_BAUDRATE;
diff --git a/include/spl.h b/include/spl.h
index af9ef71b0..2923cd2a8 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -24,6 +24,7 @@
#define _SPL_H_
/* Platform-specific defines */
+#include <linux/compiler.h>
#include <asm/spl.h>
/* Boot type */
@@ -48,6 +49,7 @@ u32 spl_boot_device(void);
u32 spl_boot_mode(void);
void spl_parse_image_header(const struct image_header *header);
void spl_board_prepare_for_linux(void);
+void __noreturn jump_to_image_linux(void *arg);
int spl_start_uboot(void);
void spl_display_print(void);
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-10-31 21:50:42 +0000