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authorArnd Bergmann <arnd@arndb.de>2019-03-01 15:21:04 +0100
committerArnd Bergmann <arnd@arndb.de>2019-03-01 15:21:04 +0100
commitc889e2a0b053703be7e7591c9a574975440e5502 (patch)
tree09810287d9ed4d57e133ba4184deebb0db14c283 /arch/arm
parentee036df9bd1d3ca8b138c6376792c0b72f96a903 (diff)
parent2781204594c2705868c1f9388f80ae6cdcdabd22 (diff)
downloadlinux-c889e2a0b053703be7e7591c9a574975440e5502.tar.bz2
Merge branch 'milbeaut/newsoc' into arm/newsoc
Sugaya Taichi <sugaya.taichi@socionext.com> explains: Here is the series of patches the initial support for SC2000(M10V) of Milbeaut SoCs. "M10V" is the internal name of SC2000, so commonly used in source code. SC2000 is a SoC of the Milbeaut series. equipped with a DSP optimized for computer vision. It also features advanced functionalities such as 360-degree, real-time spherical stitching with multi cameras, image stabilization for without mechanical gimbals, and rolling shutter correction. More detail is below: https://www.socionext.com/en/products/assp/milbeaut/SC2000.html Specifications for developers are below: - Quad-core 32bit Cortex-A7 on ARMv7-A architecture - NEON support - DSP - GPU - MAX 3GB DDR3 - Cortex-M0 for power control - NAND Flash Interface - SD UHS-I - SD UHS-II - SDIO - USB2.0 HOST / Device - USB3.0 HOST / Device - PCI express Gen2 - Ethernet Engine - I2C - UART - SPI - PWM Support is quite minimal for now, since it only includes timer, clock, pictrl and serial controller drivers, so we can only boot to userspace through initramfs. Support for the other peripherals will come eventually. * milbeaut/newsoc: ARM: multi_v7_defconfig: add ARCH_MILBEAUT and ARCH_MILBEAUT_M10V ARM: configs: Add Milbeaut M10V defconfig ARM: dts: milbeaut: Add device tree set for the Milbeaut M10V board clocksource/drivers/timer-milbeaut: Introduce timer for Milbeaut SoCs dt-bindings: timer: Add Milbeaut M10V timer description ARM: milbeaut: Add basic support for Milbeaut m10v SoC dt-bindings: Add documentation for Milbeaut SoCs dt-bindings: arm: Add SMP enable-method for Milbeaut dt-bindings: sram: milbeaut: Add binding for Milbeaut smp-sram Link: https://lore.kernel.org/linux-arm-kernel/1551243056-10521-1-git-send-email-sugaya.taichi@socionext.com/ Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/Kconfig2
-rw-r--r--arch/arm/Makefile1
-rw-r--r--arch/arm/boot/dts/Makefile1
-rw-r--r--arch/arm/boot/dts/milbeaut-m10v-evb.dts32
-rw-r--r--arch/arm/boot/dts/milbeaut-m10v.dtsi95
-rw-r--r--arch/arm/configs/milbeaut_m10v_defconfig119
-rw-r--r--arch/arm/configs/multi_v7_defconfig2
-rw-r--r--arch/arm/mach-milbeaut/Kconfig20
-rw-r--r--arch/arm/mach-milbeaut/Makefile1
-rw-r--r--arch/arm/mach-milbeaut/platsmp.c143
10 files changed, 416 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 664e918e2624..c8cb75288953 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -750,6 +750,8 @@ source "arch/arm/mach-mediatek/Kconfig"
source "arch/arm/mach-meson/Kconfig"
+source "arch/arm/mach-milbeaut/Kconfig"
+
source "arch/arm/mach-mmp/Kconfig"
source "arch/arm/mach-moxart/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 9db3c584b2cb..00000e91ad65 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -190,6 +190,7 @@ machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0
machine-$(CONFIG_ARCH_MVEBU) += mvebu
machine-$(CONFIG_ARCH_MXC) += imx
machine-$(CONFIG_ARCH_MEDIATEK) += mediatek
+machine-$(CONFIG_ARCH_MILBEAUT) += milbeaut
machine-$(CONFIG_ARCH_MXS) += mxs
machine-$(CONFIG_ARCH_NETX) += netx
machine-$(CONFIG_ARCH_NOMADIK) += nomadik
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index bd40148a15b2..f697d87e99aa 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1233,6 +1233,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \
mt7623n-bananapi-bpi-r2.dtb \
mt8127-moose.dtb \
mt8135-evbp1.dtb
+dtb-$(CONFIG_ARCH_MILBEAUT) += milbeaut-m10v-evb.dtb
dtb-$(CONFIG_ARCH_ZX) += zx296702-ad1.dtb
dtb-$(CONFIG_ARCH_ASPEED) += \
aspeed-ast2500-evb.dtb \
diff --git a/arch/arm/boot/dts/milbeaut-m10v-evb.dts b/arch/arm/boot/dts/milbeaut-m10v-evb.dts
new file mode 100644
index 000000000000..614f60c6b0a2
--- /dev/null
+++ b/arch/arm/boot/dts/milbeaut-m10v-evb.dts
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Socionext Milbeaut M10V Evaluation Board */
+/dts-v1/;
+#include "milbeaut-m10v.dtsi"
+
+/ {
+ model = "Socionext M10V EVB";
+ compatible = "socionext,milbeaut-m10v-evb", "socionext,sc2000a";
+
+ aliases {
+ serial0 = &uart1;
+ };
+
+ chosen {
+ bootargs = "rootwait earlycon";
+ stdout-path = "serial0:115200n8";
+ };
+
+ clocks {
+ uclk40xi: uclk40xi {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <40000000>;
+ };
+ };
+
+ memory@40000000 {
+ device_type = "memory";
+ reg = <0x40000000 0x80000000>;
+ };
+
+};
diff --git a/arch/arm/boot/dts/milbeaut-m10v.dtsi b/arch/arm/boot/dts/milbeaut-m10v.dtsi
new file mode 100644
index 000000000000..aa7c6caeb750
--- /dev/null
+++ b/arch/arm/boot/dts/milbeaut-m10v.dtsi
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ compatible = "socionext,sc2000a";
+ interrupt-parent = <&gic>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ enable-method = "socionext,milbeaut-m10v-smp";
+ cpu@f00 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0xf00>;
+ };
+ cpu@f01 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0xf01>;
+ };
+ cpu@f02 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0xf02>;
+ };
+ cpu@f03 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0xf03>;
+ };
+ };
+
+ timer { /* The Generic Timer */
+ compatible = "arm,armv7-timer";
+ interrupts = <GIC_PPI 13
+ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_PPI 14
+ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_PPI 11
+ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_PPI 10
+ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ clock-frequency = <40000000>;
+ always-on;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ interrupt-parent = <&gic>;
+
+ gic: interrupt-controller@1d000000 {
+ compatible = "arm,cortex-a7-gic";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ reg = <0x1d001000 0x1000>,
+ <0x1d002000 0x1000>; /* CPU I/f base and size */
+ };
+
+ timer@1e000050 { /* 32-bit Reload Timers */
+ compatible = "socionext,milbeaut-timer";
+ reg = <0x1e000050 0x20>;
+ interrupts = <0 91 4>;
+ };
+
+ uart1: serial@1e700010 { /* PE4, PE5 */
+ /* Enable this as ttyUSI0 */
+ compatible = "socionext,milbeaut-usio-uart";
+ reg = <0x1e700010 0x10>;
+ interrupts = <0 141 0x4>, <0 149 0x4>;
+ interrupt-names = "rx", "tx";
+ };
+
+ };
+
+ sram@0 {
+ compatible = "mmio-sram";
+ reg = <0x0 0x10000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x0 0x10000>;
+ smp-sram@f100 {
+ compatible = "socionext,milbeaut-smp-sram";
+ reg = <0xf100 0x20>;
+ };
+ };
+};
diff --git a/arch/arm/configs/milbeaut_m10v_defconfig b/arch/arm/configs/milbeaut_m10v_defconfig
new file mode 100644
index 000000000000..7c07f9893a0f
--- /dev/null
+++ b/arch/arm/configs/milbeaut_m10v_defconfig
@@ -0,0 +1,119 @@
+CONFIG_SYSVIPC=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_CGROUPS=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_EMBEDDED=y
+CONFIG_PERF_EVENTS=y
+CONFIG_ARCH_MILBEAUT=y
+CONFIG_ARCH_MILBEAUT_M10V=y
+CONFIG_ARM_THUMBEE=y
+# CONFIG_VDSO is not set
+# CONFIG_CACHE_L2X0 is not set
+CONFIG_ARM_ERRATA_430973=y
+CONFIG_ARM_ERRATA_720789=y
+CONFIG_ARM_ERRATA_754322=y
+CONFIG_ARM_ERRATA_754327=y
+CONFIG_ARM_ERRATA_764369=y
+CONFIG_ARM_ERRATA_775420=y
+CONFIG_ARM_ERRATA_798181=y
+CONFIG_SMP=y
+# CONFIG_SMP_ON_UP is not set
+# CONFIG_ARM_CPU_TOPOLOGY is not set
+CONFIG_HAVE_ARM_ARCH_TIMER=y
+CONFIG_NR_CPUS=16
+CONFIG_THUMB2_KERNEL=y
+# CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11 is not set
+# CONFIG_ARM_PATCH_IDIV is not set
+CONFIG_HIGHMEM=y
+CONFIG_FORCE_MAX_ZONEORDER=12
+CONFIG_SECCOMP=y
+CONFIG_KEXEC=y
+CONFIG_EFI=y
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=m
+CONFIG_CPU_FREQ_GOV_USERSPACE=m
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
+CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y
+CONFIG_CPUFREQ_DT=y
+CONFIG_QORIQ_CPUFREQ=y
+CONFIG_CPU_IDLE=y
+CONFIG_ARM_CPUIDLE=y
+CONFIG_VFP=y
+CONFIG_NEON=y
+CONFIG_KERNEL_MODE_NEON=y
+CONFIG_EFI_VARS=m
+CONFIG_EFI_CAPSULE_LOADER=m
+CONFIG_ARM_CRYPTO=y
+CONFIG_CRYPTO_SHA1_ARM_NEON=m
+CONFIG_CRYPTO_SHA1_ARM_CE=m
+CONFIG_CRYPTO_SHA2_ARM_CE=m
+CONFIG_CRYPTO_SHA512_ARM=m
+CONFIG_CRYPTO_AES_ARM=m
+CONFIG_CRYPTO_AES_ARM_BS=m
+CONFIG_CRYPTO_AES_ARM_CE=m
+CONFIG_CRYPTO_GHASH_ARM_CE=m
+CONFIG_CRYPTO_CRC32_ARM_CE=m
+CONFIG_CRYPTO_CHACHA20_NEON=m
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_CMDLINE_PARTITION=y
+CONFIG_CMA=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_DMA_CMA=y
+CONFIG_CMA_SIZE_MBYTES=64
+CONFIG_OF_OVERLAY=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=65536
+CONFIG_SRAM=y
+CONFIG_INPUT_FF_MEMLESS=m
+CONFIG_INPUT_MATRIXKMAP=y
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+CONFIG_SERIO_LIBPS2=y
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_SERIAL_DEV_BUS=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_GENERIC_PLATFORM=y
+# CONFIG_HWMON is not set
+CONFIG_MEDIA_SUPPORT=m
+CONFIG_MEDIA_CAMERA_SUPPORT=y
+CONFIG_MEDIA_CONTROLLER=y
+# CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set
+# CONFIG_HID is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_SYNC_FILE=y
+# CONFIG_VIRTIO_MENU is not set
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_SOC_BRCMSTB=y
+CONFIG_MEMORY=y
+# CONFIG_ARM_PMU is not set
+CONFIG_EXT4_FS=y
+CONFIG_AUTOFS4_FS=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_NTFS_FS=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_CONFIGFS_FS=y
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_UTF8=y
+CONFIG_KEYS=y
+CONFIG_CRYPTO_MANAGER=y
+# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
+CONFIG_CRYPTO_SEQIV=m
+# CONFIG_CRYPTO_ECHAINIV is not set
+CONFIG_CRYPTO_AES=y
+# CONFIG_CRYPTO_HW is not set
+CONFIG_CRC_CCITT=m
+CONFIG_CRC_ITU_T=m
+CONFIG_PRINTK_TIME=y
+CONFIG_MAGIC_SYSRQ=y
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 5bee34a7ff2e..6753805e520d 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -54,6 +54,8 @@ CONFIG_SOC_VF610=y
CONFIG_ARCH_KEYSTONE=y
CONFIG_ARCH_MEDIATEK=y
CONFIG_ARCH_MESON=y
+CONFIG_ARCH_MILBEAUT=y
+CONFIG_ARCH_MILBEAUT_M10V=y
CONFIG_ARCH_MVEBU=y
CONFIG_MACH_ARMADA_370=y
CONFIG_MACH_ARMADA_375=y
diff --git a/arch/arm/mach-milbeaut/Kconfig b/arch/arm/mach-milbeaut/Kconfig
new file mode 100644
index 000000000000..6a576fd8521e
--- /dev/null
+++ b/arch/arm/mach-milbeaut/Kconfig
@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: GPL-2.0
+menuconfig ARCH_MILBEAUT
+ bool "Socionext Milbeaut SoCs"
+ depends on ARCH_MULTI_V7
+ select ARM_GIC
+ help
+ This enables support for Socionext Milbeaut SoCs
+
+if ARCH_MILBEAUT
+
+config ARCH_MILBEAUT_M10V
+ bool "Milbeaut SC2000/M10V platform"
+ select ARM_ARCH_TIMER
+ select MILBEAUT_TIMER
+ select PINCTRL
+ select PINCTRL_MILBEAUT
+ help
+ Support for Socionext's MILBEAUT M10V based systems
+
+endif
diff --git a/arch/arm/mach-milbeaut/Makefile b/arch/arm/mach-milbeaut/Makefile
new file mode 100644
index 000000000000..ce5ea062047a
--- /dev/null
+++ b/arch/arm/mach-milbeaut/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_SMP) += platsmp.o
diff --git a/arch/arm/mach-milbeaut/platsmp.c b/arch/arm/mach-milbeaut/platsmp.c
new file mode 100644
index 000000000000..591543c81399
--- /dev/null
+++ b/arch/arm/mach-milbeaut/platsmp.c
@@ -0,0 +1,143 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright: (C) 2018 Socionext Inc.
+ * Copyright: (C) 2015 Linaro Ltd.
+ */
+
+#include <linux/cpu_pm.h>
+#include <linux/irqchip/arm-gic.h>
+#include <linux/of_address.h>
+#include <linux/suspend.h>
+
+#include <asm/cacheflush.h>
+#include <asm/cp15.h>
+#include <asm/idmap.h>
+#include <asm/smp_plat.h>
+#include <asm/suspend.h>
+
+#define M10V_MAX_CPU 4
+#define KERNEL_UNBOOT_FLAG 0x12345678
+
+static void __iomem *m10v_smp_base;
+
+static int m10v_boot_secondary(unsigned int l_cpu, struct task_struct *idle)
+{
+ unsigned int mpidr, cpu, cluster;
+
+ if (!m10v_smp_base)
+ return -ENXIO;
+
+ mpidr = cpu_logical_map(l_cpu);
+ cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
+ cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
+
+ if (cpu >= M10V_MAX_CPU)
+ return -EINVAL;
+
+ pr_info("%s: cpu %u l_cpu %u cluster %u\n",
+ __func__, cpu, l_cpu, cluster);
+
+ writel(__pa_symbol(secondary_startup), m10v_smp_base + cpu * 4);
+ arch_send_wakeup_ipi_mask(cpumask_of(l_cpu));
+
+ return 0;
+}
+
+static void m10v_smp_init(unsigned int max_cpus)
+{
+ unsigned int mpidr, cpu, cluster;
+ struct device_node *np;
+
+ np = of_find_compatible_node(NULL, NULL, "socionext,milbeaut-smp-sram");
+ if (!np)
+ return;
+
+ m10v_smp_base = of_iomap(np, 0);
+ if (!m10v_smp_base)
+ return;
+
+ mpidr = read_cpuid_mpidr();
+ cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
+ cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
+ pr_info("MCPM boot on cpu_%u cluster_%u\n", cpu, cluster);
+
+ for (cpu = 0; cpu < M10V_MAX_CPU; cpu++)
+ writel(KERNEL_UNBOOT_FLAG, m10v_smp_base + cpu * 4);
+}
+
+static void m10v_cpu_die(unsigned int l_cpu)
+{
+ gic_cpu_if_down(0);
+ v7_exit_coherency_flush(louis);
+ wfi();
+}
+
+static int m10v_cpu_kill(unsigned int l_cpu)
+{
+ unsigned int mpidr, cpu;
+
+ mpidr = cpu_logical_map(l_cpu);
+ cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
+
+ writel(KERNEL_UNBOOT_FLAG, m10v_smp_base + cpu * 4);
+
+ return 1;
+}
+
+static struct smp_operations m10v_smp_ops __initdata = {
+ .smp_prepare_cpus = m10v_smp_init,
+ .smp_boot_secondary = m10v_boot_secondary,
+ .cpu_die = m10v_cpu_die,
+ .cpu_kill = m10v_cpu_kill,
+};
+CPU_METHOD_OF_DECLARE(m10v_smp, "socionext,milbeaut-m10v-smp", &m10v_smp_ops);
+
+static int m10v_pm_valid(suspend_state_t state)
+{
+ return (state == PM_SUSPEND_STANDBY) || (state == PM_SUSPEND_MEM);
+}
+
+typedef void (*phys_reset_t)(unsigned long);
+static phys_reset_t phys_reset;
+
+static int m10v_die(unsigned long arg)
+{
+ setup_mm_for_reboot();
+ asm("wfi");
+ /* Boot just like a secondary */
+ phys_reset = (phys_reset_t)(unsigned long)virt_to_phys(cpu_reset);
+ phys_reset(virt_to_phys(cpu_resume));
+
+ return 0;
+}
+
+static int m10v_pm_enter(suspend_state_t state)
+{
+ switch (state) {
+ case PM_SUSPEND_STANDBY:
+ asm("wfi");
+ break;
+ case PM_SUSPEND_MEM:
+ cpu_pm_enter();
+ cpu_suspend(0, m10v_die);
+ cpu_pm_exit();
+ break;
+ }
+ return 0;
+}
+
+static const struct platform_suspend_ops m10v_pm_ops = {
+ .valid = m10v_pm_valid,
+ .enter = m10v_pm_enter,
+};
+
+struct clk *m10v_clclk_register(struct device *cpu_dev);
+
+static int __init m10v_pm_init(void)
+{
+ if (of_machine_is_compatible("socionext,milbeaut-evb"))
+ suspend_set_ops(&m10v_pm_ops);
+
+ return 0;
+}
+late_initcall(m10v_pm_init);