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-rw-r--r--target/linux/mediatek/patches/0042-ARM-mediatek-add-smp-bringup-code.patch170
1 files changed, 0 insertions, 170 deletions
diff --git a/target/linux/mediatek/patches/0042-ARM-mediatek-add-smp-bringup-code.patch b/target/linux/mediatek/patches/0042-ARM-mediatek-add-smp-bringup-code.patch
deleted file mode 100644
index c03fb5f6cb..0000000000
--- a/target/linux/mediatek/patches/0042-ARM-mediatek-add-smp-bringup-code.patch
+++ /dev/null
@@ -1,170 +0,0 @@
-From daa2c1f9202f08628d4f91a1cf4dafb44c9bcafe Mon Sep 17 00:00:00 2001
-From: "Joe.C" <yingjoe.chen@mediatek.com>
-Date: Fri, 1 May 2015 15:43:28 +0800
-Subject: [PATCH 42/76] ARM: mediatek: add smp bringup code
-
-Add support for booting secondary CPUs on mt6589, mt8127
-and mt8135.
-
-Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
----
- arch/arm/mach-mediatek/Makefile | 3 +
- arch/arm/mach-mediatek/platsmp.c | 145 ++++++++++++++++++++++++++++++++++++++
- 2 files changed, 148 insertions(+)
- create mode 100644 arch/arm/mach-mediatek/platsmp.c
-
---- a/arch/arm/mach-mediatek/Makefile
-+++ b/arch/arm/mach-mediatek/Makefile
-@@ -1 +1,4 @@
-+ifeq ($(CONFIG_SMP),y)
-+obj-$(CONFIG_ARCH_MEDIATEK) += platsmp.o
-+endif
- obj-$(CONFIG_ARCH_MEDIATEK) += mediatek.o
---- /dev/null
-+++ b/arch/arm/mach-mediatek/platsmp.c
-@@ -0,0 +1,145 @@
-+/*
-+ * arch/arm/mach-mediatek/platsmp.c
-+ *
-+ * Copyright (c) 2014 Mediatek Inc.
-+ * Author: Shunli Wang <shunli.wang@mediatek.com>
-+ * Yingjoe Chen <yingjoe.chen@mediatek.com>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ *
-+ * 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.
-+ *
-+ */
-+#include <linux/io.h>
-+#include <linux/memblock.h>
-+#include <linux/of.h>
-+#include <linux/of_address.h>
-+#include <linux/string.h>
-+#include <linux/threads.h>
-+
-+#define MTK_MAX_CPU 8
-+#define MTK_SMP_REG_SIZE 0x1000
-+
-+struct mtk_smp_boot_info {
-+ unsigned long smp_base;
-+ unsigned int jump_reg;
-+ unsigned int boot_reg;
-+ unsigned int core_keys[MTK_MAX_CPU - 1];
-+ unsigned int core_regs[MTK_MAX_CPU - 1];
-+};
-+
-+static const struct mtk_smp_boot_info mtk_mt8135_tz_boot = {
-+ 0x80002000, 1020, 1012,
-+ { 0x534c4131, 0x4c415332, 0x41534c33 },
-+ { 1016, 1016, 1016},
-+};
-+
-+static const struct mtk_smp_boot_info mtk_mt6589_boot = {
-+ 0x10002000, 0x34, 0x30,
-+ { 0x534c4131, 0x4c415332, 0x41534c33 },
-+ { 0x38, 0x3c, 0x40 },
-+};
-+
-+static const struct of_device_id mtk_tz_smp_boot_infos[] __initconst = {
-+ { .compatible = "mediatek,mt8135", .data = &mtk_mt8135_tz_boot },
-+ { .compatible = "mediatek,mt8127", .data = &mtk_mt8135_tz_boot },
-+};
-+
-+static const struct of_device_id mtk_smp_boot_infos[] __initconst = {
-+ { .compatible = "mediatek,mt6589", .data = &mtk_mt6589_boot },
-+};
-+
-+static void __iomem *mtk_smp_base;
-+static const struct mtk_smp_boot_info *mtk_smp_info;
-+
-+static int mtk_boot_secondary(unsigned int cpu, struct task_struct *idle)
-+{
-+ if (!mtk_smp_base)
-+ return -EINVAL;
-+
-+ if (!mtk_smp_info->core_keys[cpu-1])
-+ return -EINVAL;
-+
-+ writel_relaxed(mtk_smp_info->core_keys[cpu-1],
-+ mtk_smp_base + mtk_smp_info->core_regs[cpu-1]);
-+
-+ arch_send_wakeup_ipi_mask(cpumask_of(cpu));
-+
-+ return 0;
-+}
-+
-+static void __init __mtk_smp_prepare_cpus(unsigned int max_cpus, int trustzone)
-+{
-+ int i, num;
-+ const struct of_device_id *infos;
-+
-+ if (trustzone) {
-+ num = ARRAY_SIZE(mtk_tz_smp_boot_infos);
-+ infos = mtk_tz_smp_boot_infos;
-+ } else {
-+ num = ARRAY_SIZE(mtk_smp_boot_infos);
-+ infos = mtk_smp_boot_infos;
-+ }
-+
-+ /* Find smp boot info for this SoC */
-+ for (i = 0; i < num; i++) {
-+ if (of_machine_is_compatible(infos[i].compatible)) {
-+ mtk_smp_info = infos[i].data;
-+ break;
-+ }
-+ }
-+
-+ if (!mtk_smp_info) {
-+ pr_err("%s: Device is not supported\n", __func__);
-+ return;
-+ }
-+
-+ if (trustzone) {
-+ if (memblock_reserve(mtk_smp_info->smp_base, MTK_SMP_REG_SIZE)) {
-+ pr_err("%s: Can't reserve smp memory\n", __func__);
-+ return;
-+ }
-+ mtk_smp_base = phys_to_virt(mtk_smp_info->smp_base);
-+ } else {
-+ mtk_smp_base = ioremap(mtk_smp_info->smp_base, MTK_SMP_REG_SIZE);
-+ if (!mtk_smp_base) {
-+ pr_err("%s: Can't remap %lx\n", __func__,
-+ mtk_smp_info->smp_base);
-+ return;
-+ }
-+ }
-+
-+ /*
-+ * write the address of slave startup address into the system-wide
-+ * jump register
-+ */
-+ writel_relaxed(virt_to_phys(secondary_startup),
-+ mtk_smp_base + mtk_smp_info->jump_reg);
-+}
-+
-+static void __init mtk_tz_smp_prepare_cpus(unsigned int max_cpus)
-+{
-+ __mtk_smp_prepare_cpus(max_cpus, 1);
-+}
-+
-+static void __init mtk_smp_prepare_cpus(unsigned int max_cpus)
-+{
-+ __mtk_smp_prepare_cpus(max_cpus, 0);
-+}
-+
-+static struct smp_operations mt81xx_tz_smp_ops __initdata = {
-+ .smp_prepare_cpus = mtk_tz_smp_prepare_cpus,
-+ .smp_boot_secondary = mtk_boot_secondary,
-+};
-+CPU_METHOD_OF_DECLARE(mt81xx_tz_smp, "mediatek,mt81xx-tz-smp", &mt81xx_tz_smp_ops);
-+
-+static struct smp_operations mt65xx_smp_ops __initdata = {
-+ .smp_prepare_cpus = mtk_smp_prepare_cpus,
-+ .smp_boot_secondary = mtk_boot_secondary,
-+};
-+CPU_METHOD_OF_DECLARE(mt65xx_smp, "mediatek,mt65xx-smp", &mt65xx_smp_ops);