X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Farm%2Flib%2Fspl.c;h=e606d470e3809b5e8f4b529a24bd25621f096602;hb=6db8e17892d9f7e2115f335c0a3bcada74273125;hp=301f082ea3e877c4e186909105e96362d26d60e2;hpb=be08abc2429c2e9cbce3d0abc1d315171d683520;p=u-boot

diff --git a/arch/arm/lib/spl.c b/arch/arm/lib/spl.c
index 301f082ea3..e606d470e3 100644
--- a/arch/arm/lib/spl.c
+++ b/arch/arm/lib/spl.c
@@ -5,23 +5,7 @@
  * 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
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
 #include <config.h>
@@ -29,28 +13,32 @@
 #include <image.h>
 #include <linux/compiler.h>
 
+#ifndef CONFIG_SPL_DM
 /* Pointer to as well as the global data structure for SPL */
 DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * WARNING: This is going away very soon. Don't use it and don't submit
+ * pafches that rely on it. The global_data area is set up in crt0.S.
+ */
 gd_t gdata __attribute__ ((section(".data")));
+#endif
 
 /*
- * 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.
+ * In the context of SPL, board_init_f() prepares the hardware for execution
+ * from system RAM (DRAM, DDR...). As system RAM may not be available yet,
+ * board_init_f() must use the current GD to store any data which must be
+ * passed on to later stages. These data include the relocation destination,
+ * the future stack, and the future GD location. BSS is cleared after this
+ * function (and therefore must be accessible).
+ *
+ * We provide this version by default but mark it as __weak to allow for
+ * platforms to do this in their own way if needed. Please see the top
+ * level U-Boot README "Board Initialization Flow" section for info on what
+ * to put in this function.
  */
 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);
 }
 
 /*
@@ -59,14 +47,19 @@ void __weak board_init_f(ulong dummy)
  * arg: Pointer to paramter image in RAM
  */
 #ifdef CONFIG_SPL_OS_BOOT
-void __noreturn jump_to_image_linux(void *arg)
+void __noreturn jump_to_image_linux(struct spl_image_info *spl_image, void *arg)
 {
+	unsigned long machid = 0xffffffff;
+#ifdef CONFIG_MACH_TYPE
+	machid = CONFIG_MACH_TYPE;
+#endif
+
 	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;
+		(image_entry_arg_t)(uintptr_t) spl_image->entry_point;
 	cleanup_before_linux();
-	image_entry(0, CONFIG_MACH_TYPE, arg);
+	image_entry(0, machid, arg);
 }
 #endif