arm64: remove secmon

It's been decided to only support ARM Trusted Firmware for
any EL3 monitor. That means any SoC that requires PSCI
needs to add its support for ATF otherwise multi-processor
bring up won't work.

Change-Id: Ic931dbf5eff8765f4964374910123a197148f0ff
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11897
Tested-by: build bot (Jenkins)
Reviewed-by: Julius Werner <jwerner@chromium.org>

1 files changed, 0 insertions, 157 deletions

diff --git a/src/arch/arm64/armv8/secmon_loader.c b/src/arch/arm64/armv8/secmon_loader.c
deleted file mode 100644
index 946ca0f9e9..0000000000
--- a/src/arch/arm64/armv8/secmon_loader.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 Google Inc
- *
- * 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; version 2 of
- * the License.
- *
- * 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.
- *
- * secmon_loader.c: Responsible for loading the rmodule, providing entry point
- * and parameter location for the rmodule.
- */
-
-#include <arch/cache.h>
-#include <arch/lib_helpers.h>
-#include <arch/secmon.h>
-#include <arch/spintable.h>
-#include <arch/stages.h>
-#include <console/console.h>
-#include <rmodule.h>
-#include <string.h>
-
-/* SECMON entry point encoded as an rmodule */
-extern unsigned char _binary_secmon_start[];
-
-typedef void (*secmon_entry_t)(struct secmon_params *);
-
-void __attribute__((weak)) soc_get_secmon_base_size(uint64_t *secmon_base, size_t *secmon_size)
-{
-	/* Default weak implementation initializes to 0 */
-	*secmon_base = 0;
-	*secmon_size = 0;
-}
-
-static secmon_entry_t secmon_load_rmodule(void)
-{
-	struct rmodule secmon_mod;
-	uint64_t secmon_base;
-	size_t secmon_size;
-
-	/* Get base address and size of the area available for secure monitor
-	 * rmodule.
-	 */
-	soc_get_secmon_base_size(&secmon_base, &secmon_size);
-
-	if ((secmon_base == 0) || (secmon_size == 0)) {
-		printk(BIOS_ERR, "ARM64: secmon_base / secmon_size invalid\n");
-		return NULL;
-	}
-
-	printk(BIOS_DEBUG,"secmon_base:%lx,secmon_size:%lx\n",
-	       (unsigned long)secmon_base, (unsigned long)secmon_size);
-
-	/* Fail if can't parse secmon module */
-	if (rmodule_parse(&_binary_secmon_start, &secmon_mod)) {
-		printk(BIOS_ERR, "ARM64: secmon_mod not found\n");
-		return NULL;
-	}
-
-	/* Load rmodule at secmon_base */
-	if (rmodule_load((void *)secmon_base, &secmon_mod)) {
-		printk(BIOS_ERR, "ARM64:secmon_mod cannot load\n");
-		return NULL;
-	}
-
-	/* Identify the entry point for secure monitor */
-	return rmodule_entry(&secmon_mod);
-}
-
-struct secmon_runit {
-	secmon_entry_t entry;
-	struct secmon_params params;
-};
-
-static void secmon_start(void *arg)
-{
-	uint32_t scr;
-	secmon_entry_t entry;
-	struct secmon_params *p;
-	struct secmon_runit *r = arg;
-
-	entry = r->entry;
-	p = &r->params;
-
-	/* Obtain secondary entry point for non-BSP CPUs. */
-	if (!cpu_is_bsp())
-		entry = secondary_entry_point(entry);
-
-	printk(BIOS_DEBUG, "CPU%x entering secure monitor %p.\n",
-		cpu_info()->id, entry);
-
-	/* We want to enforce the following policies:
-	 * NS bit is set for lower EL
-	 */
-	scr = raw_read_scr_el3();
-	scr |= SCR_NS;
-	raw_write_scr_el3(scr);
-
-	/* Invalidate instruction cache. Necessary for non-BSP. */
-	icache_invalidate_all();
-	entry(p);
-}
-
-static void fill_secmon_params(struct secmon_params *p,
-				void (*bsp_entry)(void *), void *bsp_arg)
-{
-	const struct spintable_attributes *spin_attrs;
-
-	memset(p, 0, sizeof(*p));
-
-	p->online_cpus = cpus_online();
-
-	spin_attrs = spintable_get_attributes();
-
-	if (spin_attrs != NULL) {
-		p->secondary.run = spin_attrs->entry;
-		p->secondary.arg = spin_attrs->addr;
-	}
-
-	p->bsp.run = bsp_entry;
-	p->bsp.arg = bsp_arg;
-}
-
-void secmon_run(void (*entry)(void *), void *cb_tables)
-{
-	static struct secmon_runit runit;
-	struct cpu_action action = {
-		.run = secmon_start,
-		.arg = &runit,
-	};
-
-	printk(BIOS_SPEW, "payload jump @ %p\n", entry);
-
-	if (get_current_el() != EL3) {
-		printk(BIOS_DEBUG, "Secmon Error: Can only be loaded in EL3\n");
-		return;
-	}
-
-	runit.entry = secmon_load_rmodule();
-
-	if (runit.entry == NULL)
-		die("ARM64 Error: secmon load error");
-
-	printk(BIOS_DEBUG, "ARM64: Loaded the el3 monitor...jumping to %p\n",
-	       runit.entry);
-
-	fill_secmon_params(&runit.params, entry, cb_tables);
-
-	arch_run_on_all_cpus_but_self_async(&action);
-	secmon_start(&runit);
-}