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| author | David Feng <fenghua@phytium.com.cn> | 2013-12-14 11:47:35 +0800 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2014-01-09 16:08:44 +0100 |
| commit | 0ae7653128c80a4f2920cbe9b124792c2fd9d9e0 (patch) | |
| tree | 14fea7a80e4ea84c7b6a3bc32298daeec55054c7 /arch/arm/lib/bootm.c | |
| parent | 54799e4596bf8af33fd4a8dee153be7011c06d8d (diff) | |
| download | u-boot-imx-0ae7653128c80a4f2920cbe9b124792c2fd9d9e0.zip u-boot-imx-0ae7653128c80a4f2920cbe9b124792c2fd9d9e0.tar.gz u-boot-imx-0ae7653128c80a4f2920cbe9b124792c2fd9d9e0.tar.bz2 | |
arm64: core support
Relocation code based on a patch by Scott Wood, which is:
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: David Feng <fenghua@phytium.com.cn>
Diffstat (limited to 'arch/arm/lib/bootm.c')
| -rw-r--r-- | arch/arm/lib/bootm.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c index f476a89..77f1a5c 100644 --- a/arch/arm/lib/bootm.c +++ b/arch/arm/lib/bootm.c @@ -196,6 +196,14 @@ static void do_nonsec_virt_switch(void) debug("entered non-secure state\n"); #endif #endif + +#ifdef CONFIG_ARM64 + smp_kick_all_cpus(); + armv8_switch_to_el2(); +#ifdef CONFIG_ARMV8_SWITCH_TO_EL1 + armv8_switch_to_el1(); +#endif +#endif } /* Subcommand: PREP */ @@ -240,6 +248,21 @@ static void boot_prep_linux(bootm_headers_t *images) /* Subcommand: GO */ static void boot_jump_linux(bootm_headers_t *images, int flag) { +#ifdef CONFIG_ARM64 + void (*kernel_entry)(void *fdt_addr); + int fake = (flag & BOOTM_STATE_OS_FAKE_GO); + + kernel_entry = (void (*)(void *fdt_addr))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) + kernel_entry(images->ft_addr); +#else unsigned long machid = gd->bd->bi_arch_number; char *s; void (*kernel_entry)(int zero, int arch, uint params); @@ -266,6 +289,7 @@ static void boot_jump_linux(bootm_headers_t *images, int flag) if (!fake) kernel_entry(0, machid, r2); +#endif } /* Main Entry point for arm bootm implementation |