+// SPDX-License-Identifier: GPL-2.0+
/* Copyright (C) 2011
* Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
* - Added prep subcommand support
* Marius Groeger <mgroeger@sysgo.de>
*
* Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
+#include <cpu_func.h>
+#include <dm.h>
+#include <hang.h>
+#include <dm/root.h>
+#include <env.h>
#include <image.h>
#include <u-boot/zlib.h>
#include <asm/byteorder.h>
-#include <libfdt.h>
+#include <linux/libfdt.h>
#include <mapmem.h>
#include <fdt_support.h>
#include <asm/bootm.h>
#ifdef CONFIG_ARMV7_NONSEC
#include <asm/armv7.h>
#endif
+#include <asm/setup.h>
DECLARE_GLOBAL_DATA_PTR;
void arch_lmb_reserve(struct lmb *lmb)
{
- ulong sp;
+ ulong sp, bank_end;
+ int bank;
/*
* Booting a (Linux) kernel image
/* 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);
+ for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
+ if (!gd->bd->bi_dram[bank].size ||
+ sp < gd->bd->bi_dram[bank].start)
+ continue;
+ /* Watch out for RAM at end of address space! */
+ bank_end = gd->bd->bi_dram[bank].start +
+ gd->bd->bi_dram[bank].size - 1;
+ if (sp > bank_end)
+ continue;
+ if (bank_end > gd->ram_top)
+ bank_end = gd->ram_top - 1;
+
+ lmb_reserve(lmb, sp, bank_end - sp + 1);
+ break;
+ }
}
__weak void board_quiesce_devices(void)
*/
static void announce_and_cleanup(int fake)
{
- 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();
board_quiesce_devices();
+ printf("\nStarting kernel ...%s\n\n", fake ?
+ "(fake run for tracing)" : "");
+ /*
+ * Call remove function of all devices with a removal flag set.
+ * This may be useful for last-stage operations, like cancelling
+ * of DMA operation or releasing device internal buffers.
+ */
+ dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL);
+
cleanup_before_linux();
}
{
smp_kick_all_cpus();
dcache_disable(); /* flush cache before swtiching to EL2 */
- armv8_switch_to_el2();
-#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
- armv8_switch_to_el1();
-#endif
}
#endif
+__weak void board_prep_linux(bootm_headers_t *images) { }
+
/* Subcommand: PREP */
static void boot_prep_linux(bootm_headers_t *images)
{
- char *commandline = getenv("bootargs");
+ char *commandline = env_get("bootargs");
if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) {
#ifdef CONFIG_OF_LIBFDT
printf("FDT and ATAGS support not compiled in - hanging\n");
hang();
}
+
+ board_prep_linux(images);
}
__weak bool armv7_boot_nonsec_default(void)
#ifdef CONFIG_ARMV7_NONSEC
bool armv7_boot_nonsec(void)
{
- char *s = getenv("bootm_boot_mode");
+ char *s = env_get("bootm_boot_mode");
bool nonsec = armv7_boot_nonsec_default();
if (s && !strcmp(s, "sec"))
}
#endif
+#ifdef CONFIG_ARM64
+__weak void update_os_arch_secondary_cores(uint8_t os_arch)
+{
+}
+
+#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
+static void switch_to_el1(void)
+{
+ if ((IH_ARCH_DEFAULT == IH_ARCH_ARM64) &&
+ (images.os.arch == IH_ARCH_ARM))
+ armv8_switch_to_el1(0, (u64)gd->bd->bi_arch_number,
+ (u64)images.ft_addr, 0,
+ (u64)images.ep,
+ ES_TO_AARCH32);
+ else
+ armv8_switch_to_el1((u64)images.ft_addr, 0, 0, 0,
+ images.ep,
+ ES_TO_AARCH64);
+}
+#endif
+#endif
+
/* Subcommand: GO */
static void boot_jump_linux(bootm_headers_t *images, int flag)
{
announce_and_cleanup(fake);
if (!fake) {
+#ifdef CONFIG_ARMV8_PSCI
+ armv8_setup_psci();
+#endif
do_nonsec_virt_switch();
- kernel_entry(images->ft_addr, NULL, NULL, NULL);
+
+ update_os_arch_secondary_cores(images->os.arch);
+
+#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
+ armv8_switch_to_el2((u64)images->ft_addr, 0, 0, 0,
+ (u64)switch_to_el1, ES_TO_AARCH64);
+#else
+ if ((IH_ARCH_DEFAULT == IH_ARCH_ARM64) &&
+ (images->os.arch == IH_ARCH_ARM))
+ armv8_switch_to_el2(0, (u64)gd->bd->bi_arch_number,
+ (u64)images->ft_addr, 0,
+ (u64)images->ep,
+ ES_TO_AARCH32);
+ else
+ armv8_switch_to_el2((u64)images->ft_addr, 0, 0, 0,
+ images->ep,
+ ES_TO_AARCH64);
+#endif
}
#else
unsigned long machid = gd->bd->bi_arch_number;
int fake = (flag & BOOTM_STATE_OS_FAKE_GO);
kernel_entry = (void (*)(int, int, uint))images->ep;
-
- s = getenv("machid");
+#ifdef CONFIG_CPU_V7M
+ ulong addr = (ulong)kernel_entry | 1;
+ kernel_entry = (void *)addr;
+#endif
+ s = env_get("machid");
if (s) {
if (strict_strtoul(s, 16, &machid) < 0) {
debug("strict_strtoul failed!\n");
if (images->ft_addr) {
off = fdt_path_offset(images->ft_addr, "/memory");
- if (off < 0) {
-#ifdef CONFIG_ARCH_FIXUP_FDT
+ if (off > 0) {
if (arch_fixup_fdt(images->ft_addr))
puts("## WARNING: fixup memory failed!\n");
-#endif
}
}
#endif
}
void boot_jump_vxworks(bootm_headers_t *images)
{
+#if defined(CONFIG_ARM64) && defined(CONFIG_ARMV8_PSCI)
+ armv8_setup_psci();
+ smp_kick_all_cpus();
+#endif
+
/* ARM VxWorks requires device tree physical address to be passed */
((void (*)(void *))images->ep)(images->ft_addr);
}
projects / oweals / u-boot.git / blobdiff