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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-17 01:05:12 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-17 01:05:12 +0300
commit8c609698569578913ad40bb160b97c3f6cfa15ec (patch)
treea8a0a3b90ec9056a05f62a1c84970b5f34a3c139 /arch/arm/mach-bcm
parent18c83d2c0390fd0e8336ad090a047c56037d19f5 (diff)
parentfa32475ad56d339178c9be12678906f2b39e3b47 (diff)
downloadlinux-8c609698569578913ad40bb160b97c3f6cfa15ec.tar.xz
Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Arnd Bergmann: "Most of the commits are for defconfig changes, to enable newly added drivers or features that people have started using. For the changed lines lines, we have mostly cleanups, the affected platforms are OMAP, Versatile, EP93xx, Samsung, Broadcom, i.MX, and Actions. The largest single change is the introduction of the TI "sysc" bus driver, with the intention of cleaning up more legacy code. Two new SoC platforms get added this time: - Allwinner R40 is a modernized version of the A20 chip, now with a Quad-Core ARM Cortex-A7. According to the manufacturer, it is intended for "Smart Hardware" - Broadcom Hurricane 2 (Aka Strataconnect BCM5334X) is a family of chips meant for managed gigabit ethernet switches, based around a Cortex-A9 CPU. Finally, we gain SMP support for two platforms: Renesas R-Car E2 and Amlogic Meson8/8b, which were previously added but only supported uniprocessor operation" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (118 commits) ARM: multi_v7_defconfig: Select RPMSG_VIRTIO as module ARM: multi_v7_defconfig: enable CONFIG_GPIO_UNIPHIER arm64: defconfig: enable CONFIG_GPIO_UNIPHIER ARM: meson: enable MESON_IRQ_GPIO in Kconfig for meson8b ARM: meson: Add SMP bringup code for Meson8 and Meson8b ARM: smp_scu: allow the platform code to read the SCU CPU status ARM: smp_scu: add a helper for powering on a specific CPU dt-bindings: Amlogic: Add Meson8 and Meson8b SMP related documentation ARM: OMAP3: Delete an unnecessary variable initialisation in omap3xxx_hwmod_init() ARM: OMAP3: Use common error handling code in omap3xxx_hwmod_init() ARM: defconfig: select the right SX150X driver arm64: defconfig: Enable QCOM_IOMMU arm64: Add ThunderX drivers to defconfig arm64: defconfig: Enable Tegra PCI controller cpufreq: imx6q: Move speed grading check to cpufreq driver arm64: defconfig: re-enable Qualcomm DB410c USB ARM: configs: stm32: Add MDMA support in STM32 defconfig ARM: imx: Enable cpuidle for i.MX6DL starting at 1.1 bus: ti-sysc: Fix unbalanced pm_runtime_enable by adding remove bus: ti-sysc: mark PM functions as __maybe_unused ...
Diffstat (limited to 'arch/arm/mach-bcm')
-rw-r--r--arch/arm/mach-bcm/Kconfig9
-rw-r--r--arch/arm/mach-bcm/Makefile8
-rw-r--r--arch/arm/mach-bcm/bcm_hr2.c25
-rw-r--r--arch/arm/mach-bcm/board_bcm2835.c11
-rw-r--r--arch/arm/mach-bcm/platsmp.c38
-rw-r--r--arch/arm/mach-bcm/platsmp.h10
6 files changed, 94 insertions, 7 deletions
diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 53efe8b22126..c2f3b0d216a4 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -37,6 +37,15 @@ config ARCH_BCM_CYGNUS
BCM11300, BCM11320, BCM11350, BCM11360,
BCM58300, BCM58302, BCM58303, BCM58305.
+config ARCH_BCM_HR2
+ bool "Broadcom Hurricane 2 SoC support"
+ depends on ARCH_MULTI_V7
+ select ARCH_BCM_IPROC
+ help
+ Enable support for the Hurricane 2 family,
+ which includes the following variants:
+ BCM53342, BCM53343, BCM53344, BCM53346.
+
config ARCH_BCM_NSP
bool "Broadcom Northstar Plus SoC Support"
depends on ARCH_MULTI_V7
diff --git a/arch/arm/mach-bcm/Makefile b/arch/arm/mach-bcm/Makefile
index 980f5850097c..8fd23b263c60 100644
--- a/arch/arm/mach-bcm/Makefile
+++ b/arch/arm/mach-bcm/Makefile
@@ -13,6 +13,9 @@
# Cygnus
obj-$(CONFIG_ARCH_BCM_CYGNUS) += bcm_cygnus.o
+# Hurricane 2
+obj-$(CONFIG_ARCH_BCM_HR2) += bcm_hr2.o
+
# Northstar Plus
obj-$(CONFIG_ARCH_BCM_NSP) += bcm_nsp.o
@@ -43,6 +46,11 @@ endif
# BCM2835
obj-$(CONFIG_ARCH_BCM2835) += board_bcm2835.o
+ifeq ($(CONFIG_ARCH_BCM2835),y)
+ifeq ($(CONFIG_ARM),y)
+obj-$(CONFIG_SMP) += platsmp.o
+endif
+endif
# BCM5301X
obj-$(CONFIG_ARCH_BCM_5301X) += bcm_5301x.o
diff --git a/arch/arm/mach-bcm/bcm_hr2.c b/arch/arm/mach-bcm/bcm_hr2.c
new file mode 100644
index 000000000000..c104f28995d7
--- /dev/null
+++ b/arch/arm/mach-bcm/bcm_hr2.c
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2017 Broadcom
+ *
+ * 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.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <asm/mach/arch.h>
+
+static const char * const bcm_hr2_dt_compat[] __initconst = {
+ "brcm,hr2",
+ NULL,
+};
+
+DT_MACHINE_START(BCM_HR2_DT, "Broadcom Hurricane 2 SoC")
+ .l2c_aux_val = 0,
+ .l2c_aux_mask = ~0,
+ .dt_compat = bcm_hr2_dt_compat,
+MACHINE_END
diff --git a/arch/arm/mach-bcm/board_bcm2835.c b/arch/arm/mach-bcm/board_bcm2835.c
index 0c1edfc98696..8cff865ace04 100644
--- a/arch/arm/mach-bcm/board_bcm2835.c
+++ b/arch/arm/mach-bcm/board_bcm2835.c
@@ -15,15 +15,11 @@
#include <linux/init.h>
#include <linux/irqchip.h>
#include <linux/of_address.h>
-#include <linux/clk/bcm2835.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
-static void __init bcm2835_init(void)
-{
- bcm2835_init_clocks();
-}
+#include "platsmp.h"
static const char * const bcm2835_compat[] = {
#ifdef CONFIG_ARCH_MULTI_V6
@@ -31,11 +27,12 @@ static const char * const bcm2835_compat[] = {
#endif
#ifdef CONFIG_ARCH_MULTI_V7
"brcm,bcm2836",
+ "brcm,bcm2837",
#endif
NULL
};
DT_MACHINE_START(BCM2835, "BCM2835")
- .init_machine = bcm2835_init,
- .dt_compat = bcm2835_compat
+ .dt_compat = bcm2835_compat,
+ .smp = smp_ops(bcm2836_smp_ops),
MACHINE_END
diff --git a/arch/arm/mach-bcm/platsmp.c b/arch/arm/mach-bcm/platsmp.c
index 9e3f275934eb..7d954830eb57 100644
--- a/arch/arm/mach-bcm/platsmp.c
+++ b/arch/arm/mach-bcm/platsmp.c
@@ -17,6 +17,7 @@
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/io.h>
+#include <linux/irqchip/irq-bcm2836.h>
#include <linux/jiffies.h>
#include <linux/of.h>
#include <linux/of_address.h>
@@ -287,6 +288,38 @@ out:
return ret;
}
+static int bcm2836_boot_secondary(unsigned int cpu, struct task_struct *idle)
+{
+ void __iomem *intc_base;
+ struct device_node *dn;
+ char *name;
+
+ name = "brcm,bcm2836-l1-intc";
+ dn = of_find_compatible_node(NULL, NULL, name);
+ if (!dn) {
+ pr_err("unable to find intc node\n");
+ return -ENODEV;
+ }
+
+ intc_base = of_iomap(dn, 0);
+ of_node_put(dn);
+
+ if (!intc_base) {
+ pr_err("unable to remap intc base register\n");
+ return -ENOMEM;
+ }
+
+ writel(virt_to_phys(secondary_startup),
+ intc_base + LOCAL_MAILBOX3_SET0 + 16 * cpu);
+
+ dsb(sy);
+ sev();
+
+ iounmap(intc_base);
+
+ return 0;
+}
+
static const struct smp_operations kona_smp_ops __initconst = {
.smp_prepare_cpus = bcm_smp_prepare_cpus,
.smp_boot_secondary = kona_boot_secondary,
@@ -305,3 +338,8 @@ static const struct smp_operations nsp_smp_ops __initconst = {
.smp_boot_secondary = nsp_boot_secondary,
};
CPU_METHOD_OF_DECLARE(bcm_smp_nsp, "brcm,bcm-nsp-smp", &nsp_smp_ops);
+
+const struct smp_operations bcm2836_smp_ops __initconst = {
+ .smp_boot_secondary = bcm2836_boot_secondary,
+};
+CPU_METHOD_OF_DECLARE(bcm_smp_bcm2836, "brcm,bcm2836-smp", &bcm2836_smp_ops);
diff --git a/arch/arm/mach-bcm/platsmp.h b/arch/arm/mach-bcm/platsmp.h
new file mode 100644
index 000000000000..b8b8b3fa350d
--- /dev/null
+++ b/arch/arm/mach-bcm/platsmp.h
@@ -0,0 +1,10 @@
+/*
+ * Copyright (C) 2017 Stefan Wahren <stefan.wahren@i2se.com>
+ *
+ * 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.
+ *
+ */
+
+extern const struct smp_operations bcm2836_smp_ops;