TQM8xx: enable device tree support on all TQM8xx based boards.

[karo-tx-uboot.git] / lib_m68k / bootm.c

diff --git a/lib_m68k/bootm.c b/lib_m68k/bootm.c
old mode 100644 (file)
new mode 100755 (executable)
index ce8be05..e5ed6eb
--- a/lib_m68k/bootm.c
+++ b/lib_m68k/bootm.c
@@ -24,7 +24,7 @@
 #include <common.h>
 #include <command.h>
 #include <image.h>
-#include <zlib.h>
+#include <u-boot/zlib.h>
 #include <bzlib.h>
 #include <watchdog.h>
 #include <environment.h>
@@ -42,66 +42,67 @@ DECLARE_GLOBAL_DATA_PTR;
 
 static ulong get_sp (void);
 static void set_clocks_in_mhz (bd_t *kbd);
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 
-void do_bootm_linux(cmd_tbl_t * cmdtp, int flag,
-                   int argc, char *argv[],
-                   bootm_headers_t *images, int verify)
+void arch_lmb_reserve(struct lmb *lmb)
 {
-       ulong sp, sp_limit, alloc_current;
-
-       ulong rd_data_start, rd_data_end, rd_len;
-       ulong initrd_start, initrd_end;
-
-       ulong cmd_start, cmd_end;
-       bd_t  *kbd;
-       ulong ep = 0;
-       void  (*kernel) (bd_t *, ulong, ulong, ulong, ulong);
+       ulong sp;
 
        /*
         * Booting a (Linux) kernel image
         *
         * Allocate space for command line and board info - the
         * address should be as high as possible within the reach of
-        * the kernel (see CFG_BOOTMAPSZ settings), but in unused
+        * the kernel (see CONFIG_SYS_BOOTMAPSZ settings), but in unused
         * memory, which means far enough below the current stack
         * pointer.
         */
        sp = get_sp();
        debug ("## Current stack ends at 0x%08lx ", sp);
 
-       alloc_current = sp_limit = get_boot_sp_limit(sp);
-       debug ("=> set upper limit to 0x%08lx\n", sp_limit);
+       /* adjust sp by 1K to be safe */
+       sp -= 1024;
+       lmb_reserve(lmb, sp, (CONFIG_SYS_SDRAM_BASE + gd->ram_size - sp));
+}
+
+int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+{
+       ulong rd_len;
+       ulong initrd_start, initrd_end;
+       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;
+
+       if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
+               return 1;
+
+       bootmap_base = getenv_bootm_low();
 
        /* allocate space and init command line */
-       alloc_current = get_boot_cmdline (alloc_current, &cmd_start, &cmd_end);
+       ret = boot_get_cmdline (lmb, &cmd_start, &cmd_end, bootmap_base);
+       if (ret) {
+               puts("ERROR with allocation of cmdline\n");
+               goto error;
+       }
 
        /* allocate space for kernel copy of board info */
-       alloc_current = get_boot_kbd (alloc_current, &kbd);
-       set_clocks_in_mhz(kbd);
-
-       /* find kernel entry point */
-       if (images->legacy_hdr_valid) {
-               ep = image_get_ep (images->legacy_hdr_os);
-#if defined(CONFIG_FIT)
-       } else if (images->fit_uname_os) {
-               fit_unsupported_reset ("M68K linux bootm");
-               do_reset (cmdtp, flag, argc, argv);
-#endif
-       } else {
-               puts ("Could not find kernel entry point!\n");
-               do_reset (cmdtp, flag, argc, argv);
+       ret = boot_get_kbd (lmb, &kbd, bootmap_base);
+       if (ret) {
+               puts("ERROR with allocation of kernel bd\n");
+               goto error;
        }
-       kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))ep;
+       set_clocks_in_mhz(kbd);
 
-       /* find ramdisk */
-       get_ramdisk (cmdtp, flag, argc, argv, images, verify,
-                       IH_ARCH_M68K, &rd_data_start, &rd_data_end);
+       kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))images->ep;
 
-       rd_len = rd_data_end - rd_data_start;
-       alloc_current = ramdisk_high (alloc_current, rd_data_start, rd_len,
-                       kbd, sp_limit, get_sp (),
+       rd_len = images->rd_end - images->rd_start;
+       ret = boot_ramdisk_high (lmb, images->rd_start, rd_len,
                        &initrd_start, &initrd_end);
+       if (ret)
+               goto error;
 
        debug("## Transferring control to Linux (at address %08lx) ...\n",
              (ulong) kernel);
@@ -110,14 +111,17 @@ void do_bootm_linux(cmd_tbl_t * cmdtp, int flag,
 
        /*
         * Linux Kernel Parameters (passing board info data):
-        *   r3: ptr to board info data
-        *   r4: initrd_start or 0 if no initrd
-        *   r5: initrd_end - unused if r4 is 0
-        *   r6: Start of command line string
-        *   r7: End   of command line string
+        *   sp+00: Ignore, side effect of using jsr to jump to kernel
+        *   sp+04: ptr to board info data
+        *   sp+08: initrd_start or 0 if no initrd
+        *   sp+12: initrd_end - unused if initrd_start is 0
+        *   sp+16: Start of command line string
+        *   sp+20: End   of command line string
         */
        (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
        /* does not return */
+error:
+       return 1;
 }
 
 static ulong get_sp (void)