diff --git a/README b/README
index cdbb9de02c68c8ef8ec94be2d2748463b00d2486..b647ecac343ad597df8afc013690a2d551aafbca 100644
--- a/README
+++ b/README
@@ -2348,7 +2348,10 @@ Configuration Settings:
used) must be put below this limit, unless "bootm_low"
enviroment variable is defined and non-zero. In such case
all data for the Linux kernel must be between "bootm_low"
- and "bootm_low" + CONFIG_SYS_BOOTMAPSZ.
+ and "bootm_low" + CONFIG_SYS_BOOTMAPSZ. The environment
+ variable "bootm_mapsize" will override the value of
+ CONFIG_SYS_BOOTMAPSZ. If CONFIG_SYS_BOOTMAPSZ is undefined,
+ then the value in "bootm_size" will be used instead.
- CONFIG_SYS_BOOT_RAMDISK_HIGH:
Enable initrd_high functionality. If defined then the
@@ -3184,7 +3187,16 @@ List of environment variables (most likely not complete):
for use by the bootm command. See also "bootm_size"
environment variable. Address defined by "bootm_low" is
also the base of the initial memory mapping for the Linux
- kernel -- see the description of CONFIG_SYS_BOOTMAPSZ.
+ kernel -- see the description of CONFIG_SYS_BOOTMAPSZ and
+ bootm_mapsize.
+
+ bootm_mapsize - Size of the initial memory mapping for the Linux kernel.
+ This variable is given as a hexadecimal number and it
+ defines the size of the memory region starting at base
+ address bootm_low that is accessible by the Linux kernel
+ during early boot. If unset, CONFIG_SYS_BOOTMAPSZ is used
+ as the default value if it is defined, and bootm_size is
+ used otherwise.
bootm_size - Memory range available for image processing in the bootm
command can be restricted. This variable is given as
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index 77349530f02e10cc324aa43b90cf36db71f00493..802e833a2ed584fe1365dacd4a033665eeb2f5d7 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c
@@ -178,7 +178,6 @@ static int bootm_linux_fdt(int machid, bootm_headers_t *images)
{
ulong rd_len;
void (*kernel_entry)(int zero, int dt_machid, void *dtblob);
- ulong bootmap_base = getenv_bootm_low();
ulong of_size = images->ft_len;
char **of_flat_tree = &images->ft_addr;
ulong *initrd_start = &images->initrd_start;
@@ -188,13 +187,15 @@ static int bootm_linux_fdt(int machid, bootm_headers_t *images)
kernel_entry = (void (*)(int, int, void *))images->ep;
+ boot_fdt_add_mem_rsv_regions(lmb, *of_flat_tree);
+
rd_len = images->rd_end - images->rd_start;
ret = boot_ramdisk_high(lmb, images->rd_start, rd_len,
initrd_start, initrd_end);
if (ret)
return ret;
- ret = boot_relocate_fdt(lmb, bootmap_base, of_flat_tree, &of_size);
+ ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size);
if (ret)
return ret;
diff --git a/arch/m68k/lib/bootm.c b/arch/m68k/lib/bootm.c
index 76a2fb27c1b720c526d40ed665e829e93aac345b..1229ac7f255ba2b6067811368fcc47582ebe85de 100644
--- a/arch/m68k/lib/bootm.c
+++ b/arch/m68k/lib/bootm.c
@@ -71,7 +71,6 @@ int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *ima
int ret;
ulong cmd_start, cmd_end;
- ulong bootmap_base;
bd_t *kbd;
void (*kernel) (bd_t *, ulong, ulong, ulong, ulong);
struct lmb *lmb = &images->lmb;
@@ -79,17 +78,15 @@ int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *ima
if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
return 1;
- bootmap_base = getenv_bootm_low();
-
/* allocate space and init command line */
- ret = boot_get_cmdline (lmb, &cmd_start, &cmd_end, bootmap_base);
+ ret = boot_get_cmdline (lmb, &cmd_start, &cmd_end);
if (ret) {
puts("ERROR with allocation of cmdline\n");
goto error;
}
/* allocate space for kernel copy of board info */
- ret = boot_get_kbd (lmb, &kbd, bootmap_base);
+ ret = boot_get_kbd (lmb, &kbd);
if (ret) {
puts("ERROR with allocation of kernel bd\n");
goto error;
diff --git a/arch/powerpc/lib/bootm.c b/arch/powerpc/lib/bootm.c
index c7f3d084a3a226cbac4456e6ee6fbea24da5c10f..e01787dcb77f6eac861295ac59aa34645020d830 100644
--- a/arch/powerpc/lib/bootm.c
+++ b/arch/powerpc/lib/bootm.c
@@ -96,7 +96,7 @@ static void boot_jump_linux(bootm_headers_t *images)
debug (" Booting using OF flat tree...\n");
WATCHDOG_RESET ();
(*kernel) ((bd_t *)of_flat_tree, 0, 0, EPAPR_MAGIC,
- CONFIG_SYS_BOOTMAPSZ, 0, 0);
+ getenv_bootm_mapsize(), 0, 0);
/* does not return */
} else
#endif
@@ -186,7 +186,6 @@ static void boot_prep_linux(void)
static int boot_cmdline_linux(bootm_headers_t *images)
{
- ulong bootmap_base = getenv_bootm_low();
ulong of_size = images->ft_len;
struct lmb *lmb = &images->lmb;
ulong *cmd_start = &images->cmdline_start;
@@ -196,7 +195,7 @@ static int boot_cmdline_linux(bootm_headers_t *images)
if (!of_size) {
/* allocate space and init command line */
- ret = boot_get_cmdline (lmb, cmd_start, cmd_end, bootmap_base);
+ ret = boot_get_cmdline (lmb, cmd_start, cmd_end);
if (ret) {
puts("ERROR with allocation of cmdline\n");
return ret;
@@ -208,7 +207,6 @@ static int boot_cmdline_linux(bootm_headers_t *images)
static int boot_bd_t_linux(bootm_headers_t *images)
{
- ulong bootmap_base = getenv_bootm_low();
ulong of_size = images->ft_len;
struct lmb *lmb = &images->lmb;
bd_t **kbd = &images->kbd;
@@ -217,7 +215,7 @@ static int boot_bd_t_linux(bootm_headers_t *images)
if (!of_size) {
/* allocate space for kernel copy of board info */
- ret = boot_get_kbd (lmb, kbd, bootmap_base);
+ ret = boot_get_kbd (lmb, kbd);
if (ret) {
puts("ERROR with allocation of kernel bd\n");
return ret;
@@ -235,13 +233,16 @@ static int boot_body_linux(bootm_headers_t *images)
ulong *initrd_start = &images->initrd_start;
ulong *initrd_end = &images->initrd_end;
#if defined(CONFIG_OF_LIBFDT)
- ulong bootmap_base = getenv_bootm_low();
ulong of_size = images->ft_len;
char **of_flat_tree = &images->ft_addr;
#endif
int ret;
+#if defined(CONFIG_OF_LIBFDT)
+ boot_fdt_add_mem_rsv_regions(lmb, *of_flat_tree);
+#endif
+
/* allocate space and init command line */
ret = boot_cmdline_linux(images);
if (ret)
@@ -257,8 +258,8 @@ static int boot_body_linux(bootm_headers_t *images)
if (ret)
return ret;
-#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_SYS_BOOTMAPSZ)
- ret = boot_relocate_fdt(lmb, bootmap_base, of_flat_tree, &of_size);
+#if defined(CONFIG_OF_LIBFDT)
+ ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size);
if (ret)
return ret;
@@ -296,7 +297,7 @@ 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 778f6a429623f7f63c76c039c5cc163f190491e8..1966da48ca49ea1a250b429b1a11a6d76bac2e5d 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -544,11 +544,12 @@ 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:
{
- ulong bootmap_base = getenv_bootm_low();
- ret = boot_relocate_fdt(&images.lmb, bootmap_base,
+ boot_fdt_add_mem_rsv_regions(&images.lmb,
+ images.ft_addr);
+ ret = boot_relocate_fdt(&images.lmb,
&images.ft_addr, &images.ft_len);
break;
}
diff --git a/common/fdt_support.c b/common/fdt_support.c
index edcf04a21b7353b494e418de0deadd1e54aeeb7e..496040b54c8daf0188eef1f8680d3ac45809d9ad 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -183,7 +183,7 @@ int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end, int force)
}
}
- err = fdt_add_mem_rsv(fdt, initrd_start, initrd_end - initrd_start + 1);
+ err = fdt_add_mem_rsv(fdt, initrd_start, initrd_end - initrd_start);
if (err < 0) {
printf("fdt_initrd: %s\n", fdt_strerror(err));
return err;
diff --git a/common/image.c b/common/image.c
index f63a2ff1a05b4d5aa3d38df62b3553ad31d6b21f..e542a5736710ec94ef547158211c0365bc2372e3 100644
--- a/common/image.c
+++ b/common/image.c
@@ -454,6 +454,22 @@ phys_size_t getenv_bootm_size(void)
#endif
}
+phys_size_t getenv_bootm_mapsize(void)
+{
+ phys_size_t tmp;
+ char *s = getenv ("bootm_mapsize");
+ if (s) {
+ tmp = (phys_size_t)simple_strtoull (s, NULL, 16);
+ return tmp;
+ }
+
+#if defined(CONFIG_SYS_BOOTMAPSZ)
+ return CONFIG_SYS_BOOTMAPSZ;
+#else
+ return getenv_bootm_size();
+#endif
+}
+
void memmove_wd (void *to, void *from, size_t len, ulong chunksz)
{
if (to == from)
@@ -1169,10 +1185,37 @@ static int fit_check_fdt (const void *fit, int fdt_noffset, int verify)
#define CONFIG_SYS_FDT_PAD 0x3000
#endif
+#if defined(CONFIG_OF_LIBFDT)
+/**
+ * boot_fdt_add_mem_rsv_regions - Mark the memreserve sections as unusable
+ * @lmb: pointer to lmb handle, will be used for memory mgmt
+ * @fdt_blob: pointer to fdt blob base address
+ *
+ * Adds the memreserve regions in the dtb to the lmb block. Adding the
+ * memreserve regions prevents u-boot from using them to store the initrd
+ * or the fdt blob.
+ */
+void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob)
+{
+ uint64_t addr, size;
+ int i, total;
+
+ if (fdt_check_header (fdt_blob) != 0)
+ return;
+
+ total = fdt_num_mem_rsv(fdt_blob);
+ for (i = 0; i < total; i++) {
+ if (fdt_get_mem_rsv(fdt_blob, i, &addr, &size) != 0)
+ continue;
+ printf(" reserving fdt memory region: addr=%llx size=%llx\n",
+ (unsigned long long)addr, (unsigned long long)size);
+ lmb_reserve(lmb, addr, size);
+ }
+}
+
/**
* boot_relocate_fdt - relocate flat device tree
* @lmb: pointer to lmb handle, will be used for memory mgmt
- * @bootmap_base: base address of the bootmap region
* @of_flat_tree: pointer to a char* variable, will hold fdt start address
* @of_size: pointer to a ulong variable, will hold fdt length
*
@@ -1187,9 +1230,7 @@ static int fit_check_fdt (const void *fit, int fdt_noffset, int verify)
* 0 - success
* 1 - failure
*/
-#if defined(CONFIG_SYS_BOOTMAPSZ)
-int boot_relocate_fdt (struct lmb *lmb, ulong bootmap_base,
- char **of_flat_tree, ulong *of_size)
+int boot_relocate_fdt (struct lmb *lmb, char **of_flat_tree, ulong *of_size)
{
void *fdt_blob = *of_flat_tree;
void *of_start = 0;
@@ -1209,7 +1250,7 @@ int boot_relocate_fdt (struct lmb *lmb, ulong bootmap_base,
/* Pad the FDT by a specified amount */
of_len = *of_size + CONFIG_SYS_FDT_PAD;
of_start = (void *)(unsigned long)lmb_alloc_base(lmb, of_len, 0x1000,
- (CONFIG_SYS_BOOTMAPSZ + bootmap_base));
+ getenv_bootm_mapsize() + getenv_bootm_low());
if (of_start == 0) {
puts("device tree - allocation error\n");
@@ -1238,7 +1279,7 @@ int boot_relocate_fdt (struct lmb *lmb, ulong bootmap_base,
error:
return 1;
}
-#endif /* CONFIG_SYS_BOOTMAPSZ */
+#endif /* CONFIG_OF_LIBFDT */
/**
* boot_get_fdt - main fdt handling routine
@@ -1567,11 +1608,9 @@ error:
* @lmb: pointer to lmb handle, will be used for memory mgmt
* @cmd_start: pointer to a ulong variable, will hold cmdline start
* @cmd_end: pointer to a ulong variable, will hold cmdline end
- * @bootmap_base: ulong variable, holds offset in physical memory to
- * base of bootmap
*
* boot_get_cmdline() allocates space for kernel command line below
- * BOOTMAPSZ + bootmap_base address. If "bootargs" U-boot environemnt
+ * BOOTMAPSZ + getenv_bootm_low() address. If "bootargs" U-boot environemnt
* variable is present its contents is copied to allocated kernel
* command line.
*
@@ -1579,14 +1618,13 @@ error:
* 0 - success
* -1 - failure
*/
-int boot_get_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end,
- ulong bootmap_base)
+int boot_get_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end)
{
char *cmdline;
char *s;
cmdline = (char *)(ulong)lmb_alloc_base(lmb, CONFIG_SYS_BARGSIZE, 0xf,
- CONFIG_SYS_BOOTMAPSZ + bootmap_base);
+ getenv_bootm_mapsize() + getenv_bootm_low());
if (cmdline == NULL)
return -1;
@@ -1610,21 +1648,19 @@ int boot_get_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end,
* boot_get_kbd - allocate and initialize kernel copy of board info
* @lmb: pointer to lmb handle, will be used for memory mgmt
* @kbd: double pointer to board info data
- * @bootmap_base: ulong variable, holds offset in physical memory to
- * base of bootmap
*
* boot_get_kbd() allocates space for kernel copy of board info data below
- * BOOTMAPSZ + bootmap_base address and kernel board info is initialized with
- * the current u-boot board info data.
+ * BOOTMAPSZ + getenv_bootm_low() address and kernel board info is initialized
+ * with the current u-boot board info data.
*
* returns:
* 0 - success
* -1 - failure
*/
-int boot_get_kbd (struct lmb *lmb, bd_t **kbd, ulong bootmap_base)
+int boot_get_kbd (struct lmb *lmb, bd_t **kbd)
{
*kbd = (bd_t *)(ulong)lmb_alloc_base(lmb, sizeof(bd_t), 0xf,
- CONFIG_SYS_BOOTMAPSZ + bootmap_base);
+ getenv_bootm_mapsize() + getenv_bootm_low());
if (*kbd == NULL)
return -1;
diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h
index 5cfa4cb69a8b040f2f14591dad378c1237e1b893..a0f6829625d19e3831b92fa68a2549b5933f8d26 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
diff --git a/include/image.h b/include/image.h
index 005e0d24e4d99ac592d823f2a51dbf8dd2e51ecb..c31e862d32252da2bb2356e0f8e6d3f32af0344a 100644
--- a/include/image.h
+++ b/include/image.h
@@ -336,8 +336,8 @@ int boot_get_ramdisk (int argc, char * const argv[], bootm_headers_t *images,
#ifdef CONFIG_OF_LIBFDT
int boot_get_fdt (int flag, int argc, char * const argv[], bootm_headers_t *images,
char **of_flat_tree, ulong *of_size);
-int boot_relocate_fdt (struct lmb *lmb, ulong bootmap_base,
- char **of_flat_tree, ulong *of_size);
+void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob);
+int boot_relocate_fdt (struct lmb *lmb, char **of_flat_tree, ulong *of_size);
#endif
#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
@@ -345,11 +345,10 @@ int boot_ramdisk_high (struct lmb *lmb, ulong rd_data, ulong rd_len,
ulong *initrd_start, ulong *initrd_end);
#endif /* CONFIG_SYS_BOOT_RAMDISK_HIGH */
#ifdef CONFIG_SYS_BOOT_GET_CMDLINE
-int boot_get_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end,
- ulong bootmap_base);
+int boot_get_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end);
#endif /* CONFIG_SYS_BOOT_GET_CMDLINE */
#ifdef CONFIG_SYS_BOOT_GET_KBD
-int boot_get_kbd (struct lmb *lmb, bd_t **kbd, ulong bootmap_base);
+int boot_get_kbd (struct lmb *lmb, bd_t **kbd);
#endif /* CONFIG_SYS_BOOT_GET_KBD */
#endif /* !USE_HOSTCC */
@@ -453,6 +452,7 @@ int image_check_dcrc (const image_header_t *hdr);
int getenv_yesno (char *var);
ulong getenv_bootm_low(void);
phys_size_t getenv_bootm_size(void);
+phys_size_t getenv_bootm_mapsize(void);
void memmove_wd (void *to, void *from, size_t len, ulong chunksz);
#endif