1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2011 Andes Technology Corporation 4 * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com> 5 * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com> 6 * Rick Chen, Andes Technology Corporation <rick@andestech.com> 7 */ 8 9 #include <common.h> 10 #include <command.h> 11 #include <image.h> 12 #include <u-boot/zlib.h> 13 #include <asm/byteorder.h> 14 #include <asm/bootm.h> 15 16 DECLARE_GLOBAL_DATA_PTR; 17 18 __weak void board_quiesce_devices(void) 19 { 20 } 21 22 int arch_fixup_fdt(void *blob) 23 { 24 return 0; 25 } 26 27 int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) 28 { 29 bd_t *bd = gd->bd; 30 char *s; 31 int machid = bd->bi_arch_number; 32 void (*theKernel)(int arch, uint params); 33 34 /* 35 * allow the PREP bootm subcommand, it is required for bootm to work 36 */ 37 if (flag & BOOTM_STATE_OS_PREP) 38 return 0; 39 40 if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) 41 return 1; 42 43 theKernel = (void (*)(int, uint))images->ep; 44 45 s = env_get("machid"); 46 if (s) { 47 machid = simple_strtoul(s, NULL, 16); 48 printf("Using machid 0x%x from environment\n", machid); 49 } 50 51 bootstage_mark(BOOTSTAGE_ID_RUN_OS); 52 53 debug("## Transferring control to Linux (at address %08lx) ...\n", 54 (ulong)theKernel); 55 56 if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) { 57 #ifdef CONFIG_OF_LIBFDT 58 debug("using: FDT\n"); 59 if (image_setup_linux(images)) { 60 printf("FDT creation failed! hanging..."); 61 hang(); 62 } 63 #endif 64 } 65 66 /* we assume that the kernel is in place */ 67 printf("\nStarting kernel ...\n\n"); 68 69 cleanup_before_linux(); 70 if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) 71 theKernel(machid, (unsigned long)images->ft_addr); 72 73 /* does not return */ 74 75 return 1; 76 } 77