* MA 02111-1307 USA
*/
-#define DEBUG
#include <common.h>
#include <watchdog.h>
#include <command.h>
#include <image.h>
#include <malloc.h>
-#include <zlib.h>
+#include <u-boot/zlib.h>
#include <bzlib.h>
#include <environment.h>
#include <asm/byteorder.h>
#include <libfdt.h>
#include <fdt_support.h>
-static void fdt_error (const char *msg);
-static ulong get_fdt (ulong alloc_current, cmd_tbl_t *cmdtp, int flag,
- int argc, char *argv[],
- image_header_t *hdr, char **of_flat_tree);
#endif
-#ifdef CFG_INIT_RAM_LOCK
+#ifdef CONFIG_SYS_INIT_RAM_LOCK
#include <asm/cache.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern ulong get_effective_memsize(void);
static ulong get_sp (void);
static void set_clocks_in_mhz (bd_t *kbd);
-void __attribute__((noinline))
-do_bootm_linux(cmd_tbl_t *cmdtp, int flag,
- int argc, char *argv[],
- image_header_t *hdr,
- int verify)
+#ifndef CONFIG_SYS_LINUX_LOWMEM_MAX_SIZE
+#define CONFIG_SYS_LINUX_LOWMEM_MAX_SIZE (768*1024*1024)
+#endif
+
+static void boot_jump_linux(bootm_headers_t *images)
{
- ulong sp, sp_limit, alloc_current;
+ void (*kernel)(bd_t *, ulong r4, ulong r5, ulong r6,
+ ulong r7, ulong r8, ulong r9);
+#ifdef CONFIG_OF_LIBFDT
+ char *of_flat_tree = images->ft_addr;
+#endif
- ulong initrd_start, initrd_end;
- ulong rd_data_start, rd_data_end, rd_len;
+ kernel = (void (*)(bd_t *, ulong, ulong, ulong,
+ ulong, ulong, ulong))images->ep;
+ debug ("## Transferring control to Linux (at address %08lx) ...\n",
+ (ulong)kernel);
- ulong cmd_start, cmd_end;
- bd_t *kbd;
- void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
+ show_boot_progress (15);
+
+#if defined(CONFIG_SYS_INIT_RAM_LOCK) && !defined(CONFIG_E500)
+ unlock_ram_in_cache();
+#endif
#if defined(CONFIG_OF_LIBFDT)
- char *of_flat_tree;
+ if (of_flat_tree) { /* device tree; boot new style */
+ /*
+ * Linux Kernel Parameters (passing device tree):
+ * r3: pointer to the fdt
+ * r4: 0
+ * r5: 0
+ * r6: epapr magic
+ * r7: size of IMA in bytes
+ * r8: 0
+ * r9: 0
+ */
+#if defined(CONFIG_85xx) || defined(CONFIG_440)
+ #define EPAPR_MAGIC (0x45504150)
+#else
+ #define EPAPR_MAGIC (0x65504150)
#endif
+ debug (" Booting using OF flat tree...\n");
+ (*kernel) ((bd_t *)of_flat_tree, 0, 0, EPAPR_MAGIC,
+ CONFIG_SYS_BOOTMAPSZ, 0, 0);
+ /* does not return */
+ } else
+#endif
+ {
+ /*
+ * 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
+ * r8: 0
+ * r9: 0
+ */
+ ulong cmd_start = images->cmdline_start;
+ ulong cmd_end = images->cmdline_end;
+ ulong initrd_start = images->initrd_start;
+ ulong initrd_end = images->initrd_end;
+ bd_t *kbd = images->kbd;
+
+ debug (" Booting using board info...\n");
+ (*kernel) (kbd, initrd_start, initrd_end,
+ cmd_start, cmd_end, 0, 0);
+ /* does not return */
+ }
+ return ;
+}
+
+void arch_lmb_reserve(struct lmb *lmb)
+{
+ phys_size_t bootm_size;
+ ulong size, sp, bootmap_base;
+
+ bootmap_base = getenv_bootm_low();
+ bootm_size = getenv_bootm_size();
+
+#ifdef DEBUG
+ if (((u64)bootmap_base + bootm_size) >
+ (CONFIG_SYS_SDRAM_BASE + (u64)gd->ram_size))
+ puts("WARNING: bootm_low + bootm_size exceed total memory\n");
+ if ((bootmap_base + bootm_size) > get_effective_memsize())
+ puts("WARNING: bootm_low + bootm_size exceed eff. memory\n");
+#endif
+
+ size = min(bootm_size, get_effective_memsize());
+ size = min(size, CONFIG_SYS_LINUX_LOWMEM_MAX_SIZE);
+
+ if (size < bootm_size) {
+ ulong base = bootmap_base + size;
+ printf("WARNING: adjusting available memory to %lx\n", size);
+ lmb_reserve(lmb, base, bootm_size - size);
+ }
+
/*
* 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);
+ debug ("## Current stack ends at 0x%08lx\n", 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 + get_effective_memsize() - sp));
- /* allocate space and init command line */
- alloc_current = get_boot_cmdline (alloc_current, &cmd_start, &cmd_end);
+ return ;
+}
- /* allocate space for kernel copy of board info */
- alloc_current = get_boot_kbd (alloc_current, &kbd);
- set_clocks_in_mhz(kbd);
+static void boot_prep_linux(void)
+{
+#if (CONFIG_NUM_CPUS > 1)
+ /* if we are MP make sure to flush the dcache() to any changes are made
+ * visibile to all other cores */
+ flush_dcache();
+#endif
+ return ;
+}
+
+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;
+ ulong *cmd_end = &images->cmdline_end;
+
+ int ret = 0;
+
+ if (!of_size) {
+ /* allocate space and init command line */
+ ret = boot_get_cmdline (lmb, cmd_start, cmd_end, bootmap_base);
+ if (ret) {
+ puts("ERROR with allocation of cmdline\n");
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
+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;
+
+ int ret = 0;
+
+ if (!of_size) {
+ /* allocate space for kernel copy of board info */
+ ret = boot_get_kbd (lmb, kbd, bootmap_base);
+ if (ret) {
+ puts("ERROR with allocation of kernel bd\n");
+ return ret;
+ }
+ set_clocks_in_mhz(*kbd);
+ }
- /* find kernel */
- kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))image_get_ep (hdr);
+ return ret;
+}
- /* find ramdisk */
- get_ramdisk (cmdtp, flag, argc, argv, hdr, verify,
- IH_ARCH_PPC, &rd_data_start, &rd_data_end);
+static int boot_body_linux(bootm_headers_t *images)
+{
+ ulong rd_len;
+ struct lmb *lmb = &images->lmb;
+ 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;
+
+ /* allocate space and init command line */
+ ret = boot_cmdline_linux(images);
+ if (ret)
+ return ret;
- rd_len = rd_data_end - rd_data_start;
+ /* allocate space for kernel copy of board info */
+ ret = boot_bd_t_linux(images);
+ if (ret)
+ return ret;
- alloc_current = ramdisk_high (alloc_current, rd_data_start, rd_len,
- kbd, sp_limit, get_sp (),
- &initrd_start, &initrd_end);
+ 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;
#if defined(CONFIG_OF_LIBFDT)
- /* find flattened device tree */
- alloc_current = get_fdt (alloc_current,
- cmdtp, flag, argc, argv, hdr, &of_flat_tree);
+ ret = boot_relocate_fdt(lmb, bootmap_base, of_flat_tree, &of_size);
+ if (ret)
+ return ret;
/*
* Add the chosen node if it doesn't exist, add the env and bd_t
* if the user wants it (the logic is in the subroutines).
*/
- if (of_flat_tree) {
- if (fdt_chosen(of_flat_tree, initrd_start, initrd_end, 0) < 0) {
- fdt_error ("/chosen node create failed");
- do_reset (cmdtp, flag, argc, argv);
- }
-#ifdef CONFIG_OF_HAS_UBOOT_ENV
- if (fdt_env(of_flat_tree) < 0) {
- fdt_error ("/u-boot-env node create failed");
- do_reset (cmdtp, flag, argc, argv);
- }
-#endif
-#ifdef CONFIG_OF_HAS_BD_T
- if (fdt_bd_t(of_flat_tree) < 0) {
- fdt_error ("/bd_t node create failed");
- do_reset (cmdtp, flag, argc, argv);
+ if (of_size) {
+ if (fdt_chosen(*of_flat_tree, 1) < 0) {
+ puts ("ERROR: ");
+ puts ("/chosen node create failed");
+ puts (" - must RESET the board to recover.\n");
+ return -1;
}
-#endif
#ifdef CONFIG_OF_BOARD_SETUP
/* Call the board-specific fixup routine */
- ft_board_setup(of_flat_tree, gd->bd);
+ ft_board_setup(*of_flat_tree, gd->bd);
#endif
+
+ /* Delete the old LMB reservation */
+ lmb_free(lmb, (phys_addr_t)(u32)*of_flat_tree,
+ (phys_size_t)fdt_totalsize(*of_flat_tree));
+
+ ret = fdt_resize(*of_flat_tree);
+ if (ret < 0)
+ return ret;
+ of_size = ret;
+
+ if (*initrd_start && *initrd_end)
+ of_size += FDT_RAMDISK_OVERHEAD;
+ /* Create a new LMB reservation */
+ lmb_reserve(lmb, (ulong)*of_flat_tree, of_size);
+
+ /* fixup the initrd now that we know where it should be */
+ if (*initrd_start && *initrd_end)
+ fdt_initrd(*of_flat_tree, *initrd_start, *initrd_end, 1);
}
#endif /* CONFIG_OF_LIBFDT */
+ return 0;
+}
- debug ("## Transferring control to Linux (at address %08lx) ...\n",
- (ulong)kernel);
+__attribute__((noinline))
+int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+{
+ int ret;
- show_boot_progress (15);
+ if (flag & BOOTM_STATE_OS_CMDLINE) {
+ boot_cmdline_linux(images);
+ return 0;
+ }
-#if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
- unlock_ram_in_cache();
-#endif
+ if (flag & BOOTM_STATE_OS_BD_T) {
+ boot_bd_t_linux(images);
+ return 0;
+ }
-#if defined(CONFIG_OF_LIBFDT)
- if (of_flat_tree) { /* device tree; boot new style */
- /*
- * Linux Kernel Parameters (passing device tree):
- * r3: pointer to the fdt, followed by the board info data
- * r4: physical pointer to the kernel itself
- * r5: NULL
- * r6: NULL
- * r7: NULL
- */
- (*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0);
- /* does not return */
+ if (flag & BOOTM_STATE_OS_PREP) {
+ boot_prep_linux();
+ return 0;
}
-#endif
- /*
- * 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
- */
- (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
- /* does not return */
+
+ if (flag & BOOTM_STATE_OS_GO) {
+ boot_jump_linux(images);
+ return 0;
+ }
+
+ boot_prep_linux();
+ ret = boot_body_linux(images);
+ if (ret)
+ return ret;
+ boot_jump_linux(images);
+
+ return 0;
}
static ulong get_sp (void)
kbd->bi_cpmfreq /= 1000000L;
kbd->bi_brgfreq /= 1000000L;
kbd->bi_sccfreq /= 1000000L;
- kbd->bi_vco /= 1000000L;
+ kbd->bi_vco /= 1000000L;
#endif
#if defined(CONFIG_MPC5xxx)
kbd->bi_ipbfreq /= 1000000L;
#endif /* CONFIG_MPC5xxx */
}
}
-
-#if defined(CONFIG_OF_LIBFDT)
-static void fdt_error (const char *msg)
-{
- puts ("ERROR: ");
- puts (msg);
- puts (" - must RESET the board to recover.\n");
-}
-
-static ulong get_fdt (ulong alloc_current,
- cmd_tbl_t *cmdtp, int flag,
- int argc, char *argv[],
- image_header_t *hdr, char **of_flat_tree)
-{
- image_header_t *fdt_hdr;
- ulong fdt_relocate = 0;
- char *fdt = NULL;
- ulong new_alloc_current;
-
- if(argc > 3) {
- fdt = (char *)simple_strtoul (argv[3], NULL, 16);
- fdt_hdr = (image_header_t *)fdt;
-
- if (fdt_check_header (fdt) == 0) {
- printf ("## Flattened Device Tree blob at %08lx\n", fdt);
-#ifndef CFG_NO_FLASH
- if (addr2info ((ulong)fdt) != NULL)
- fdt_relocate = 1;
-#endif
- } else if (image_check_magic (fdt_hdr)) {
- ulong image_start, image_end;
- ulong load_start, load_end;
-
- printf ("## Flattened Device Tree Image at %08lx\n",
- fdt_hdr);
-
- print_image_hdr (fdt_hdr);
-
- image_start = (ulong)fdt_hdr;
- image_end = image_get_image_end (fdt_hdr);
-
- load_start = image_get_load (fdt_hdr);
- load_end = load_start + image_get_data_size (fdt_hdr);
-
- if ((load_start < image_end) && (load_end > image_start)) {
- fdt_error ("fdt overwritten");
- do_reset (cmdtp, flag, argc, argv);
- }
-
- puts (" Verifying Checksum ... ");
- if (!image_check_hcrc (fdt_hdr)) {
- fdt_error ("fdt header checksum invalid");
- do_reset (cmdtp, flag, argc, argv);
- }
-
- if (!image_check_dcrc (fdt_hdr)) {
- fdt_error ("fdt checksum invalid");
- do_reset (cmdtp, flag, argc, argv);
- }
- puts ("OK\n");
-
- if (!image_check_type (fdt_hdr, IH_TYPE_FLATDT)) {
- fdt_error ("uImage is not a fdt");
- do_reset (cmdtp, flag, argc, argv);
- }
- if (image_get_comp (fdt_hdr) != IH_COMP_NONE) {
- fdt_error ("uImage is compressed");
- do_reset (cmdtp, flag, argc, argv);
- }
- if (fdt_check_header ((char *)image_get_data (fdt_hdr)) != 0) {
- fdt_error ("uImage data is not a fdt");
- do_reset (cmdtp, flag, argc, argv);
- }
-
- memmove ((void *)image_get_load (fdt_hdr),
- (void *)image_get_data (fdt_hdr),
- image_get_data_size (fdt_hdr));
-
- fdt = (char *)image_get_load (fdt_hdr);
- } else {
- fdt_error ("Did not find a Flattened Device Tree");
- do_reset (cmdtp, flag, argc, argv);
- }
- printf (" Booting using the fdt at 0x%x\n",
- fdt);
- } else if (image_check_type (hdr, IH_TYPE_MULTI)) {
- ulong fdt_data, fdt_len;
-
- printf ("## Flattened Device Tree from multi "
- "component Image at %08lX\n", (ulong)hdr);
-
- image_multi_getimg (hdr, 2, &fdt_data, &fdt_len);
- if (fdt_len) {
-
- fdt = (char *)fdt_data;
- printf (" Booting using the fdt at 0x%x\n", fdt);
-
-#ifndef CFG_NO_FLASH
- /* move the blob if it is in flash (set of_relocte) */
- if (addr2info ((ulong)fdt) != NULL)
- fdt_relocate = 1;
-#endif
-
- if (fdt_check_header (fdt) != 0) {
- fdt_error ("image is not a fdt");
- do_reset (cmdtp, flag, argc, argv);
- }
-
- if (be32_to_cpu (fdt_totalsize (fdt)) != fdt_len) {
- fdt_error ("fdt size != image size");
- do_reset (cmdtp, flag, argc, argv);
- }
- } else {
- debug (" Did not find a Flattened Device Tree");
- }
- }
-
-#ifdef CFG_BOOTMAPSZ
- /*
- * The blob must be within CFG_BOOTMAPSZ,
- * so we flag it to be copied if it is not.
- */
- if (fdt >= (char *)CFG_BOOTMAPSZ)
- fdt_relocate = 1;
-#endif
-
- /* move flattend device tree if needed */
- if (fdt_relocate) {
- int err;
- ulong of_start, of_len;
-
- of_len = be32_to_cpu (fdt_totalsize (fdt));
-
- /* position on a 4K boundary before the alloc_current */
- of_start = alloc_current - of_len;
- of_start &= ~(4096 - 1); /* align on page */
-
- debug ("## device tree at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
- (ulong)fdt, (ulong)fdt + of_len - 1,
- of_len, of_len);
-
- printf (" Loading Device Tree to %08lx, end %08lx ... ",
- of_start, of_start + of_len - 1);
-
- err = fdt_open_into (fdt, (void *)of_start, of_len);
- if (err != 0) {
- fdt_error ("fdt move failed");
- do_reset (cmdtp, flag, argc, argv);
- }
- puts ("OK\n");
-
- *of_flat_tree = (char *)of_start;
- new_alloc_current = of_start;
- } else {
- *of_flat_tree = fdt;
- new_alloc_current = alloc_current;
- }
-
- return new_alloc_current;
-}
-#endif
projects / karo-tx-uboot.git / blobdiff