mirror of
https://github.com/AsahiLinux/u-boot
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aa6e94deab
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_SDRAM namespace do not easily transition to Kconfig. In many cases they likely should come from the device tree instead. Move these out of CONFIG namespace and in to CFG namespace. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
328 lines
7.2 KiB
C
328 lines
7.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2008 Semihalf
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*
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* (C) Copyright 2000-2006
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#include <common.h>
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#include <bootstage.h>
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#include <cpu_func.h>
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#include <env.h>
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#include <init.h>
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#include <lmb.h>
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#include <log.h>
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#include <watchdog.h>
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#include <command.h>
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#include <image.h>
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#include <malloc.h>
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#include <asm/global_data.h>
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#include <u-boot/zlib.h>
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#include <bzlib.h>
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#include <asm/byteorder.h>
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#include <asm/mp.h>
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#include <bootm.h>
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#include <vxworks.h>
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#if defined(CONFIG_OF_LIBFDT)
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#include <linux/libfdt.h>
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#include <fdt_support.h>
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#endif
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#ifdef CONFIG_SYS_INIT_RAM_LOCK
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#include <asm/cache.h>
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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static ulong get_sp (void);
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extern void ft_fixup_num_cores(void *blob);
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static void set_clocks_in_mhz (struct bd_info *kbd);
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#ifndef CONFIG_SYS_LINUX_LOWMEM_MAX_SIZE
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#define CONFIG_SYS_LINUX_LOWMEM_MAX_SIZE (768*1024*1024)
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#endif
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static void boot_jump_linux(struct bootm_headers *images)
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{
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void (*kernel)(struct bd_info *, ulong r4, ulong r5, ulong r6,
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ulong r7, ulong r8, ulong r9);
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#ifdef CONFIG_OF_LIBFDT
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char *of_flat_tree = images->ft_addr;
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#endif
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kernel = (void (*)(struct bd_info *, ulong, ulong, ulong,
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ulong, ulong, ulong))images->ep;
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debug("## Transferring control to Linux (at address %08lx) ...\n",
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(ulong)kernel);
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bootstage_mark(BOOTSTAGE_ID_RUN_OS);
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#ifdef CONFIG_BOOTSTAGE_FDT
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bootstage_fdt_add_report();
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#endif
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#ifdef CONFIG_BOOTSTAGE_REPORT
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bootstage_report();
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#endif
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#if defined(CONFIG_SYS_INIT_RAM_LOCK) && !defined(CONFIG_E500)
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unlock_ram_in_cache();
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#endif
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#if defined(CONFIG_OF_LIBFDT)
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if (of_flat_tree) { /* device tree; boot new style */
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/*
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* Linux Kernel Parameters (passing device tree):
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* r3: pointer to the fdt
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* r4: 0
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* r5: 0
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* r6: epapr magic
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* r7: size of IMA in bytes
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* r8: 0
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* r9: 0
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*/
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debug(" Booting using OF flat tree...\n");
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schedule();
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(*kernel) ((struct bd_info *)of_flat_tree, 0, 0, EPAPR_MAGIC,
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env_get_bootm_mapsize(), 0, 0);
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/* does not return */
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} else
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#endif
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{
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/*
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* Linux Kernel Parameters (passing board info data):
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* r3: ptr to board info data
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* r4: initrd_start or 0 if no initrd
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* r5: initrd_end - unused if r4 is 0
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* r6: Start of command line string
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* r7: End of command line string
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* r8: 0
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* r9: 0
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*/
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ulong cmd_start = images->cmdline_start;
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ulong cmd_end = images->cmdline_end;
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ulong initrd_start = images->initrd_start;
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ulong initrd_end = images->initrd_end;
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struct bd_info *kbd = images->kbd;
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debug(" Booting using board info...\n");
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schedule();
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(*kernel) (kbd, initrd_start, initrd_end,
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cmd_start, cmd_end, 0, 0);
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/* does not return */
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}
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return;
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}
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void arch_lmb_reserve(struct lmb *lmb)
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{
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phys_size_t bootm_size;
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ulong size, bootmap_base;
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bootmap_base = env_get_bootm_low();
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bootm_size = env_get_bootm_size();
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#ifdef DEBUG
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if (((u64)bootmap_base + bootm_size) >
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(CFG_SYS_SDRAM_BASE + (u64)gd->ram_size))
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puts("WARNING: bootm_low + bootm_size exceed total memory\n");
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if ((bootmap_base + bootm_size) > get_effective_memsize())
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puts("WARNING: bootm_low + bootm_size exceed eff. memory\n");
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#endif
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size = min(bootm_size, get_effective_memsize());
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size = min(size, (ulong)CONFIG_SYS_LINUX_LOWMEM_MAX_SIZE);
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if (size < bootm_size) {
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ulong base = bootmap_base + size;
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printf("WARNING: adjusting available memory from 0x%lx to 0x%llx\n",
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size, (unsigned long long)bootm_size);
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lmb_reserve(lmb, base, bootm_size - size);
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}
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arch_lmb_reserve_generic(lmb, get_sp(), gd->ram_top, 4096);
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#ifdef CONFIG_MP
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cpu_mp_lmb_reserve(lmb);
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#endif
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return;
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}
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static void boot_prep_linux(struct bootm_headers *images)
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{
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#ifdef CONFIG_MP
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/*
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* if we are MP make sure to flush the device tree so any changes are
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* made visibile to all other cores. In AMP boot scenarios the cores
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* might not be HW cache coherent with each other.
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*/
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flush_cache((unsigned long)images->ft_addr, images->ft_len);
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#endif
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}
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static int boot_cmdline_linux(struct bootm_headers *images)
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{
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ulong of_size = images->ft_len;
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struct lmb *lmb = &images->lmb;
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ulong *cmd_start = &images->cmdline_start;
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ulong *cmd_end = &images->cmdline_end;
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int ret = 0;
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if (!of_size) {
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/* allocate space and init command line */
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ret = boot_get_cmdline (lmb, cmd_start, cmd_end);
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if (ret) {
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puts("ERROR with allocation of cmdline\n");
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return ret;
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}
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}
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return ret;
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}
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static int boot_bd_t_linux(struct bootm_headers *images)
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{
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ulong of_size = images->ft_len;
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struct lmb *lmb = &images->lmb;
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struct bd_info **kbd = &images->kbd;
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int ret = 0;
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if (!of_size) {
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/* allocate space for kernel copy of board info */
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ret = boot_get_kbd (lmb, kbd);
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if (ret) {
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puts("ERROR with allocation of kernel bd\n");
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return ret;
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}
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set_clocks_in_mhz(*kbd);
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}
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return ret;
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}
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static int boot_body_linux(struct bootm_headers *images)
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{
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int ret;
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/* allocate space for kernel copy of board info */
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ret = boot_bd_t_linux(images);
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if (ret)
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return ret;
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if (CONFIG_IS_ENABLED(LMB)) {
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ret = image_setup_linux(images);
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if (ret)
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return ret;
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}
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return 0;
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}
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noinline int do_bootm_linux(int flag, int argc, char *const argv[],
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struct bootm_headers *images)
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{
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int ret;
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if (flag & BOOTM_STATE_OS_CMDLINE) {
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boot_cmdline_linux(images);
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return 0;
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}
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if (flag & BOOTM_STATE_OS_BD_T) {
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boot_bd_t_linux(images);
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return 0;
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}
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if (flag & BOOTM_STATE_OS_PREP) {
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boot_prep_linux(images);
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return 0;
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}
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boot_prep_linux(images);
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ret = boot_body_linux(images);
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if (ret)
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return ret;
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boot_jump_linux(images);
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return 0;
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}
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static ulong get_sp (void)
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{
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ulong sp;
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asm( "mr %0,1": "=r"(sp) : );
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return sp;
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}
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static void set_clocks_in_mhz (struct bd_info *kbd)
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{
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char *s;
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s = env_get("clocks_in_mhz");
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if (s) {
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/* convert all clock information to MHz */
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kbd->bi_intfreq /= 1000000L;
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kbd->bi_busfreq /= 1000000L;
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}
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}
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#if defined(CONFIG_BOOTM_VXWORKS)
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void boot_prep_vxworks(struct bootm_headers *images)
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{
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#if defined(CONFIG_OF_LIBFDT)
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int off;
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u64 base, size;
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if (!images->ft_addr)
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return;
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base = (u64)gd->ram_base;
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size = (u64)gd->ram_size;
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off = fdt_path_offset(images->ft_addr, "/memory");
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if (off < 0)
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fdt_fixup_memory(images->ft_addr, base, size);
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#if defined(CONFIG_MP)
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#if defined(CONFIG_MPC85xx)
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ft_fixup_cpu(images->ft_addr, base + size);
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ft_fixup_num_cores(images->ft_addr);
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#elif defined(CONFIG_MPC86xx)
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off = fdt_add_mem_rsv(images->ft_addr,
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determine_mp_bootpg(NULL), (u64)4096);
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if (off < 0)
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printf("## WARNING %s: %s\n", __func__, fdt_strerror(off));
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ft_fixup_num_cores(images->ft_addr);
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#endif
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flush_cache((unsigned long)images->ft_addr, images->ft_len);
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#endif
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#endif
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}
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void boot_jump_vxworks(struct bootm_headers *images)
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{
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/* PowerPC VxWorks boot interface conforms to the ePAPR standard
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* general purpuse registers:
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*
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* r3: Effective address of the device tree image
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* r4: 0
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* r5: 0
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* r6: ePAPR magic value
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* r7: shall be the size of the boot IMA in bytes
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* r8: 0
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* r9: 0
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* TCR: WRC = 0, no watchdog timer reset will occur
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*/
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schedule();
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((void (*)(void *, ulong, ulong, ulong,
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ulong, ulong, ulong))images->ep)(images->ft_addr,
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0, 0, EPAPR_MAGIC, env_get_bootm_mapsize(), 0, 0);
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}
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#endif
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