[U-Boot] [PATCH 3/6] Remove device tree booting dependency on CONFIG_SYS_BOOTMAPSZ

[Grant Likely]

From: Grant Likely <grant.likely at linaro.org>

The previous patch makes u-boot use the full accessible size of ram as
the default boot mapped size if CONFIG_SYS_BOOTMAPSZ is not defined,
which means boot_relocate_fdt() can be changed to depend solely on
CONFIG_OF_LIBFDT.

Signed-off-by: Grant Likely <grant.likely at linaro.org>
---
 arch/powerpc/lib/bootm.c       |    4 ++--
 common/cmd_bootm.c             |    2 +-
 common/image.c                 |    4 ++--
 include/configs/omap3_beagle.h |    7 -------
 4 files changed, 5 insertions(+), 12 deletions(-)

diff --git a/arch/powerpc/lib/bootm.c b/arch/powerpc/lib/bootm.c
index 1ee4f79..180ee30 100644
--- a/arch/powerpc/lib/bootm.c
+++ b/arch/powerpc/lib/bootm.c
@@ -249,7 +249,7 @@ static int boot_body_linux(bootm_headers_t *images)
 	if (ret)
 		return ret;
 
-#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_SYS_BOOTMAPSZ)
+#if defined(CONFIG_OF_LIBFDT)
 	ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size);
 	if (ret)
 		return ret;
@@ -288,7 +288,7 @@ static int boot_body_linux(bootm_headers_t *images)
 		if (*initrd_start && *initrd_end)
 			fdt_initrd(*of_flat_tree, *initrd_start, *initrd_end, 1);
 	}
-#endif	/* CONFIG_OF_LIBFDT && CONFIG_SYS_BOOTMAPSZ */
+#endif	/* CONFIG_OF_LIBFDT */
 	return 0;
 }
 
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index a5c275f..8a0a99e 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -544,7 +544,7 @@ int do_bootm_subcommand (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv
 		}
 			break;
 #endif
-#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_SYS_BOOTMAPSZ)
+#if defined(CONFIG_OF_LIBFDT)
 		case BOOTM_STATE_FDT:
 		{
 			ret = boot_relocate_fdt(&images.lmb,
diff --git a/common/image.c b/common/image.c
index a6247d8..127eda2 100644
--- a/common/image.c
+++ b/common/image.c
@@ -1202,7 +1202,7 @@ static int fit_check_fdt (const void *fit, int fdt_noffset, int verify)
  *      0 - success
  *      1 - failure
  */
-#if defined(CONFIG_SYS_BOOTMAPSZ)
+#if defined(CONFIG_OF_LIBFDT)
 int boot_relocate_fdt (struct lmb *lmb, char **of_flat_tree, ulong *of_size)
 {
 	void	*fdt_blob = *of_flat_tree;
@@ -1252,7 +1252,7 @@ int boot_relocate_fdt (struct lmb *lmb, char **of_flat_tree, ulong *of_size)
 error:
 	return 1;
 }
-#endif /* CONFIG_SYS_BOOTMAPSZ */
+#endif /* CONFIG_OF_LIBFDT */
 
 /**
  * boot_get_fdt - main fdt handling routine
diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h
index 5cfa4cb..a0f6829 100644
--- a/include/configs/omap3_beagle.h
+++ b/include/configs/omap3_beagle.h
@@ -56,13 +56,6 @@
 #define CONFIG_MISC_INIT_R
 
 #define CONFIG_OF_LIBFDT		1
-/*
- * The early kernel mapping on ARM currently only maps from the base of DRAM
- * to the end of the kernel image.  The kernel is loaded at DRAM base + 0x8000.
- * The early kernel pagetable uses DRAM base + 0x4000 to DRAM base + 0x8000,
- * so that leaves DRAM base to DRAM base + 0x4000 available.
- */
-#define CONFIG_SYS_BOOTMAPSZ	        0x4000
 
 #define CONFIG_CMDLINE_TAG		1	/* enable passing of ATAGs */
 #define CONFIG_SETUP_MEMORY_TAGS	1