Board code has addition modification that it wants to make
to the flat device tree before handing it off to the kernel
+ CONFIG_OF_SYSTEM_SETUP
+
+ Other code has addition modification that it wants to make
+ to the flat device tree before handing it off to the kernel.
+ This causes ft_system_setup() to be called before booting
+ the kernel.
+
CONFIG_OF_BOOT_CPU
This define fills in the correct boot CPU in the boot
to 128 or 256, although it does not have to be power of 2).
default: 4096
-
+
CONFIG_MTD_UBI_BEB_LIMIT
This option specifies the maximum bad physical eraseblocks UBI
expects on the MTD device (per 1024 eraseblocks). If the
}
}
#endif
+#ifdef CONFIG_OF_SYSTEM_SETUP
+ /* Call the board-specific fixup routine */
+ else if (strncmp(argv[1], "sys", 3) == 0) {
+ int err = ft_system_setup(working_fdt, gd->bd);
+
+ if (err) {
+ printf("Failed to add system information to FDT: %s\n",
+ fdt_strerror(err));
+ return CMD_RET_FAILURE;
+ }
+ }
+#endif
/* Create a chosen node */
else if (strncmp(argv[1], "cho", 3) == 0) {
unsigned long initrd_start = 0, initrd_end = 0;
#ifdef CONFIG_OF_BOARD_SETUP
"fdt boardsetup - Do board-specific set up\n"
#endif
+#ifdef CONFIG_OF_SYSTEM_SETUP
+ "fdt systemsetup - Do system-specific set up\n"
+#endif
"fdt move <fdt> <newaddr> <length> - Copy the fdt to <addr> and make it active\n"
"fdt resize - Resize fdt to size + padding to 4k addr\n"
"fdt print <path> [<prop>] - Recursive print starting at <path>\n"
goto err;
}
}
+ if (IMAGE_OF_SYSTEM_SETUP) {
+ if (ft_system_setup(blob, gd->bd)) {
+ printf("ERROR: system-specific fdt fixup failed: %s\n",
+ fdt_strerror(fdt_ret));
+ goto err;
+ }
+ }
fdt_fixup_ethernet(blob);
/* Delete the old LMB reservation */
void ft_cpu_setup(void *blob, bd_t *bd);
void ft_pci_setup(void *blob, bd_t *bd);
+/**
+ * Add system-specific data to the FDT before booting the OS.
+ *
+ * Use CONFIG_SYS_FDT_PAD to ensure there is sufficient space.
+ * This function is called if CONFIG_OF_SYSTEM_SETUP is defined
+ *
+ * @param blob FDT blob to update
+ * @param bd_t Pointer to board data
+ * @return 0 if ok, or -FDT_ERR_... on error
+ */
+int ft_system_setup(void *blob, bd_t *bd);
+
void set_working_fdt_addr(void *addr);
int fdt_shrink_to_minimum(void *blob);
int fdt_increase_size(void *fdt, int add_len);
# define IMAGE_OF_BOARD_SETUP 0
#endif
+#ifdef CONFIG_OF_SYSTEM_SETUP
+# define IMAGE_OF_SYSTEM_SETUP 1
+#else
+# define IMAGE_OF_SYSTEM_SETUP 0
+#endif
+
/*
* Operating System Codes
*/