diff options
Diffstat (limited to 'arch/microblaze/lib/bootm.c')
| -rw-r--r-- | arch/microblaze/lib/bootm.c | 47 |
1 files changed, 42 insertions, 5 deletions
diff --git a/arch/microblaze/lib/bootm.c b/arch/microblaze/lib/bootm.c index bce4774..2227a81 100644 --- a/arch/microblaze/lib/bootm.c +++ b/arch/microblaze/lib/bootm.c @@ -35,22 +35,59 @@ DECLARE_GLOBAL_DATA_PTR; int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) { /* First parameter is mapped to $r5 for kernel boot args */ - void (*theKernel) (char *); + void (*theKernel) (char *, ulong, ulong); char *commandline = getenv ("bootargs"); + ulong rd_data_start, rd_data_end; if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) return 1; - theKernel = (void (*)(char *))images->ep; + int ret; + + char *of_flat_tree = NULL; +#if defined(CONFIG_OF_LIBFDT) + ulong of_size = 0; + + /* find flattened device tree */ + ret = boot_get_fdt (flag, argc, argv, images, &of_flat_tree, &of_size); + if (ret) + return 1; +#endif + + theKernel = (void (*)(char *, ulong, ulong))images->ep; + + /* find ramdisk */ + ret = boot_get_ramdisk (argc, argv, images, IH_ARCH_MICROBLAZE, + &rd_data_start, &rd_data_end); + if (ret) + return 1; show_boot_progress (15); + if (!(ulong) of_flat_tree) + of_flat_tree = (char *)simple_strtoul (argv[3], NULL, 16); + #ifdef DEBUG - printf ("## Transferring control to Linux (at address %08lx) ...\n", - (ulong) theKernel); + printf ("## Transferring control to Linux (at address 0x%08lx) " \ + "ramdisk 0x%08lx, FDT 0x%08lx...\n", + (ulong) theKernel, rd_data_start, (ulong) of_flat_tree); #endif - theKernel (commandline); +#ifdef XILINX_USE_DCACHE +#ifdef XILINX_DCACHE_BYTE_SIZE + flush_cache(0, XILINX_DCACHE_BYTE_SIZE); +#else +#warning please rebuild BSPs and update configuration + flush_cache(0, 32768); +#endif +#endif + /* + * Linux Kernel Parameters (passing device tree): + * r5: pointer to command line + * r6: pointer to ramdisk + * r7: pointer to the fdt, followed by the board info data + */ + theKernel (commandline, rd_data_start, (ulong) of_flat_tree); /* does not return */ return 1; |