-/*
+/* Copyright (C) 2011
+ * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
+ * - Added prep subcommand support
+ * - Reorganized source - modeled after powerpc version
+ *
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <image.h>
+#include <vxworks.h>
#include <u-boot/zlib.h>
#include <asm/byteorder.h>
-#include <fdt.h>
#include <libfdt.h>
#include <fdt_support.h>
+#include <asm/bootm.h>
+#include <asm/secure.h>
+#include <linux/compiler.h>
+#include <bootm.h>
+#include <vxworks.h>
+
+#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT)
+#include <asm/armv7.h>
+#endif
DECLARE_GLOBAL_DATA_PTR;
-#if defined (CONFIG_SETUP_MEMORY_TAGS) || \
- defined (CONFIG_CMDLINE_TAG) || \
- defined (CONFIG_INITRD_TAG) || \
- defined (CONFIG_SERIAL_TAG) || \
- defined (CONFIG_REVISION_TAG)
-static void setup_start_tag (bd_t *bd);
-
-# ifdef CONFIG_SETUP_MEMORY_TAGS
-static void setup_memory_tags (bd_t *bd);
-# endif
-static void setup_commandline_tag (bd_t *bd, char *commandline);
-
-# ifdef CONFIG_INITRD_TAG
-static void setup_initrd_tag (bd_t *bd, ulong initrd_start,
- ulong initrd_end);
-# endif
-static void setup_end_tag (bd_t *bd);
-
static struct tag *params;
-#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
-static ulong get_sp(void);
-#if defined(CONFIG_OF_LIBFDT)
-static int bootm_linux_fdt(int machid, bootm_headers_t *images);
-#endif
+static ulong get_sp(void)
+{
+ ulong ret;
+
+ asm("mov %0, sp" : "=r"(ret) : );
+ return ret;
+}
void arch_lmb_reserve(struct lmb *lmb)
{
sp = get_sp();
debug("## Current stack ends at 0x%08lx ", sp);
- /* adjust sp by 1K to be safe */
- sp -= 1024;
+ /* adjust sp by 4K to be safe */
+ sp -= 4096;
lmb_reserve(lmb, sp,
gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size - sp);
}
-static void announce_and_cleanup(void)
-{
- printf("\nStarting kernel ...\n\n");
-
-#ifdef CONFIG_USB_DEVICE
- {
- extern void udc_disconnect(void);
- udc_disconnect();
- }
-#endif
- cleanup_before_linux();
-}
-
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+/**
+ * announce_and_cleanup() - Print message and prepare for kernel boot
+ *
+ * @fake: non-zero to do everything except actually boot
+ */
+static void announce_and_cleanup(int fake)
{
- bd_t *bd = gd->bd;
- char *s;
- int machid = bd->bi_arch_number;
- void (*kernel_entry)(int zero, int arch, uint params);
-
-#ifdef CONFIG_CMDLINE_TAG
- char *commandline = getenv ("bootargs");
+ printf("\nStarting kernel ...%s\n\n", fake ?
+ "(fake run for tracing)" : "");
+ bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel");
+#ifdef CONFIG_BOOTSTAGE_FDT
+ bootstage_fdt_add_report();
#endif
-
- if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
- return 1;
-
- s = getenv ("machid");
- if (s) {
- machid = simple_strtoul (s, NULL, 16);
- printf ("Using machid 0x%x from environment\n", machid);
- }
-
- show_boot_progress (15);
-
-#ifdef CONFIG_OF_LIBFDT
- if (images->ft_len)
- return bootm_linux_fdt(machid, images);
+#ifdef CONFIG_BOOTSTAGE_REPORT
+ bootstage_report();
#endif
- kernel_entry = (void (*)(int, int, uint))images->ep;
-
- debug ("## Transferring control to Linux (at address %08lx) ...\n",
- (ulong) kernel_entry);
-
-#if defined (CONFIG_SETUP_MEMORY_TAGS) || \
- defined (CONFIG_CMDLINE_TAG) || \
- defined (CONFIG_INITRD_TAG) || \
- defined (CONFIG_SERIAL_TAG) || \
- defined (CONFIG_REVISION_TAG)
- setup_start_tag (bd);
-#ifdef CONFIG_SERIAL_TAG
- setup_serial_tag (¶ms);
-#endif
-#ifdef CONFIG_REVISION_TAG
- setup_revision_tag (¶ms);
-#endif
-#ifdef CONFIG_SETUP_MEMORY_TAGS
- setup_memory_tags (bd);
-#endif
-#ifdef CONFIG_CMDLINE_TAG
- setup_commandline_tag (bd, commandline);
-#endif
-#ifdef CONFIG_INITRD_TAG
- if (images->rd_start && images->rd_end)
- setup_initrd_tag (bd, images->rd_start, images->rd_end);
-#endif
- setup_end_tag(bd);
+#ifdef CONFIG_USB_DEVICE
+ udc_disconnect();
#endif
-
- announce_and_cleanup();
-
- kernel_entry(0, machid, bd->bi_boot_params);
- /* does not return */
-
- return 1;
-}
-
-#if defined(CONFIG_OF_LIBFDT)
-static int fixup_memory_node(void *blob)
-{
- bd_t *bd = gd->bd;
- int bank;
- u64 start[CONFIG_NR_DRAM_BANKS];
- u64 size[CONFIG_NR_DRAM_BANKS];
-
- for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
- start[bank] = bd->bi_dram[bank].start;
- size[bank] = bd->bi_dram[bank].size;
- }
-
- return fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS);
-}
-
-static int bootm_linux_fdt(int machid, bootm_headers_t *images)
-{
- ulong rd_len;
- void (*kernel_entry)(int zero, int dt_machid, void *dtblob);
- ulong bootmap_base = getenv_bootm_low();
- ulong of_size = images->ft_len;
- char **of_flat_tree = &images->ft_addr;
- ulong *initrd_start = &images->initrd_start;
- ulong *initrd_end = &images->initrd_end;
- struct lmb *lmb = &images->lmb;
- int ret;
-
- kernel_entry = (void (*)(int, int, void *))images->ep;
-
- 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;
-
- ret = boot_relocate_fdt(lmb, bootmap_base, of_flat_tree, &of_size);
- if (ret)
- return ret;
-
- debug("## Transferring control to Linux (at address %08lx) ...\n",
- (ulong) kernel_entry);
-
- fdt_chosen(*of_flat_tree, 1);
-
- fixup_memory_node(*of_flat_tree);
-
- fdt_initrd(*of_flat_tree, *initrd_start, *initrd_end, 1);
-
- announce_and_cleanup();
-
- kernel_entry(0, machid, *of_flat_tree);
- /* does not return */
-
- return 1;
+ cleanup_before_linux();
}
-#endif
-#if defined (CONFIG_SETUP_MEMORY_TAGS) || \
- defined (CONFIG_CMDLINE_TAG) || \
- defined (CONFIG_INITRD_TAG) || \
- defined (CONFIG_SERIAL_TAG) || \
- defined (CONFIG_REVISION_TAG)
static void setup_start_tag (bd_t *bd)
{
- params = (struct tag *) bd->bi_boot_params;
+ params = (struct tag *)bd->bi_boot_params;
params->hdr.tag = ATAG_CORE;
params->hdr.size = tag_size (tag_core);
params = tag_next (params);
}
-
-#ifdef CONFIG_SETUP_MEMORY_TAGS
-static void setup_memory_tags (bd_t *bd)
+static void setup_memory_tags(bd_t *bd)
{
int i;
params = tag_next (params);
}
}
-#endif /* CONFIG_SETUP_MEMORY_TAGS */
-
-static void setup_commandline_tag (bd_t *bd, char *commandline)
+static void setup_commandline_tag(bd_t *bd, char *commandline)
{
char *p;
params = tag_next (params);
}
-
-#ifdef CONFIG_INITRD_TAG
-static void setup_initrd_tag (bd_t *bd, ulong initrd_start, ulong initrd_end)
+static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end)
{
/* an ATAG_INITRD node tells the kernel where the compressed
* ramdisk can be found. ATAG_RDIMG is a better name, actually.
params = tag_next (params);
}
-#endif /* CONFIG_INITRD_TAG */
-#ifdef CONFIG_SERIAL_TAG
-void setup_serial_tag (struct tag **tmp)
+static void setup_serial_tag(struct tag **tmp)
{
struct tag *params = *tmp;
struct tag_serialnr serialnr;
- void get_board_serial(struct tag_serialnr *serialnr);
get_board_serial(&serialnr);
params->hdr.tag = ATAG_SERIAL;
params = tag_next (params);
*tmp = params;
}
-#endif
-#ifdef CONFIG_REVISION_TAG
-void setup_revision_tag(struct tag **in_params)
+static void setup_revision_tag(struct tag **in_params)
{
u32 rev = 0;
- u32 get_board_rev(void);
rev = get_board_rev();
params->hdr.tag = ATAG_REVISION;
params->u.revision.rev = rev;
params = tag_next (params);
}
-#endif /* CONFIG_REVISION_TAG */
-static void setup_end_tag (bd_t *bd)
+static void setup_end_tag(bd_t *bd)
{
params->hdr.tag = ATAG_NONE;
params->hdr.size = 0;
}
-#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
-static ulong get_sp(void)
+__weak void setup_board_tags(struct tag **in_params) {}
+
+#ifdef CONFIG_ARM64
+static void do_nonsec_virt_switch(void)
{
- ulong ret;
+ smp_kick_all_cpus();
+ flush_dcache_all(); /* flush cache before swtiching to EL2 */
+ armv8_switch_to_el2();
+#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
+ armv8_switch_to_el1();
+#endif
+}
+#endif
- asm("mov %0, sp" : "=r"(ret) : );
- return ret;
+/* Subcommand: PREP */
+static void boot_prep_linux(bootm_headers_t *images)
+{
+ char *commandline = getenv("bootargs");
+
+ if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) {
+#ifdef CONFIG_OF_LIBFDT
+ debug("using: FDT\n");
+ if (image_setup_linux(images)) {
+ printf("FDT creation failed! hanging...");
+ hang();
+ }
+#endif
+ } else if (BOOTM_ENABLE_TAGS) {
+ debug("using: ATAGS\n");
+ setup_start_tag(gd->bd);
+ if (BOOTM_ENABLE_SERIAL_TAG)
+ setup_serial_tag(¶ms);
+ if (BOOTM_ENABLE_CMDLINE_TAG)
+ setup_commandline_tag(gd->bd, commandline);
+ if (BOOTM_ENABLE_REVISION_TAG)
+ setup_revision_tag(¶ms);
+ if (BOOTM_ENABLE_MEMORY_TAGS)
+ setup_memory_tags(gd->bd);
+ if (BOOTM_ENABLE_INITRD_TAG) {
+ if (images->rd_start && images->rd_end) {
+ setup_initrd_tag(gd->bd, images->rd_start,
+ images->rd_end);
+ }
+ }
+ setup_board_tags(¶ms);
+ setup_end_tag(gd->bd);
+ } else {
+ printf("FDT and ATAGS support not compiled in - hanging\n");
+ hang();
+ }
+}
+
+/* Subcommand: GO */
+static void boot_jump_linux(bootm_headers_t *images, int flag)
+{
+#ifdef CONFIG_ARM64
+ void (*kernel_entry)(void *fdt_addr, void *res0, void *res1,
+ void *res2);
+ int fake = (flag & BOOTM_STATE_OS_FAKE_GO);
+
+ kernel_entry = (void (*)(void *fdt_addr, void *res0, void *res1,
+ void *res2))images->ep;
+
+ debug("## Transferring control to Linux (at address %lx)...\n",
+ (ulong) kernel_entry);
+ bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+
+ announce_and_cleanup(fake);
+
+ if (!fake) {
+ do_nonsec_virt_switch();
+ kernel_entry(images->ft_addr, NULL, NULL, NULL);
+ }
+#else
+ unsigned long machid = gd->bd->bi_arch_number;
+ char *s;
+ void (*kernel_entry)(int zero, int arch, uint params);
+ unsigned long r2;
+ int fake = (flag & BOOTM_STATE_OS_FAKE_GO);
+
+ kernel_entry = (void (*)(int, int, uint))images->ep;
+
+ s = getenv("machid");
+ if (s) {
+ strict_strtoul(s, 16, &machid);
+ printf("Using machid 0x%lx from environment\n", machid);
+ }
+
+ debug("## Transferring control to Linux (at address %08lx)" \
+ "...\n", (ulong) kernel_entry);
+ bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+ announce_and_cleanup(fake);
+
+ if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len)
+ r2 = (unsigned long)images->ft_addr;
+ else
+ r2 = gd->bd->bi_boot_params;
+
+ if (!fake) {
+#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT)
+ armv7_init_nonsec();
+ secure_ram_addr(_do_nonsec_entry)(kernel_entry,
+ 0, machid, r2);
+#else
+ kernel_entry(0, machid, r2);
+#endif
+ }
+#endif
}
+
+/* Main Entry point for arm bootm implementation
+ *
+ * Modeled after the powerpc implementation
+ * DIFFERENCE: Instead of calling prep and go at the end
+ * they are called if subcommand is equal 0.
+ */
+int do_bootm_linux(int flag, int argc, char * const argv[],
+ bootm_headers_t *images)
+{
+ /* No need for those on ARM */
+ if (flag & BOOTM_STATE_OS_BD_T || flag & BOOTM_STATE_OS_CMDLINE)
+ return -1;
+
+ if (flag & BOOTM_STATE_OS_PREP) {
+ boot_prep_linux(images);
+ return 0;
+ }
+
+ if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) {
+ boot_jump_linux(images, flag);
+ return 0;
+ }
+
+ boot_prep_linux(images);
+ boot_jump_linux(images, flag);
+ return 0;
+}
+
+#ifdef CONFIG_CMD_BOOTZ
+
+struct zimage_header {
+ uint32_t code[9];
+ uint32_t zi_magic;
+ uint32_t zi_start;
+ uint32_t zi_end;
+};
+
+#define LINUX_ARM_ZIMAGE_MAGIC 0x016f2818
+
+int bootz_setup(ulong image, ulong *start, ulong *end)
+{
+ struct zimage_header *zi;
+
+ zi = (struct zimage_header *)map_sysmem(image, 0);
+ if (zi->zi_magic != LINUX_ARM_ZIMAGE_MAGIC) {
+ puts("Bad Linux ARM zImage magic!\n");
+ return 1;
+ }
+
+ *start = zi->zi_start;
+ *end = zi->zi_end;
+
+ printf("Kernel image @ %#08lx [ %#08lx - %#08lx ]\n", image, *start,
+ *end);
+
+ return 0;
+}
+
+#endif /* CONFIG_CMD_BOOTZ */
+
+#if defined(CONFIG_BOOTM_VXWORKS)
+void boot_prep_vxworks(bootm_headers_t *images)
+{
+#if defined(CONFIG_OF_LIBFDT)
+ int off;
+
+ if (images->ft_addr) {
+ off = fdt_path_offset(images->ft_addr, "/memory");
+ if (off < 0) {
+ if (arch_fixup_fdt(images->ft_addr))
+ puts("## WARNING: fixup memory failed!\n");
+ }
+ }
+#endif
+ cleanup_before_linux();
+}
+void boot_jump_vxworks(bootm_headers_t *images)
+{
+ /* ARM VxWorks requires device tree physical address to be passed */
+ ((void (*)(void *))images->ep)(images->ft_addr);
+}
+#endif
projects / karo-tx-uboot.git / blobdiff