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-rw-r--r--arch/arm/boot/dts/Makefile3
-rw-r--r--arch/arm/boot/dts/ecx-2000.dts104
-rw-r--r--arch/arm/boot/dts/ecx-common.dtsi237
-rw-r--r--arch/arm/boot/dts/highbank.dts212
-rw-r--r--arch/arm/kernel/smp_twd.c6
-rw-r--r--arch/arm/mach-highbank/Kconfig2
-rw-r--r--arch/arm/mach-highbank/highbank.c27
-rw-r--r--arch/arm/mach-highbank/hotplug.c6
-rw-r--r--arch/arm/mach-highbank/platsmp.c7
-rw-r--r--arch/arm/mach-highbank/pm.c3
-rw-r--r--arch/arm/mach-highbank/sysregs.h19
-rw-r--r--arch/arm/mach-highbank/system.c2
12 files changed, 384 insertions, 244 deletions
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index f37cf9fa5fa0..5cc95667fa3b 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -24,7 +24,8 @@ dtb-$(CONFIG_ARCH_EXYNOS) += exynos4210-origen.dtb \
exynos4210-smdkv310.dtb \
exynos4210-trats.dtb \
exynos5250-smdk5250.dtb
-dtb-$(CONFIG_ARCH_HIGHBANK) += highbank.dtb
+dtb-$(CONFIG_ARCH_HIGHBANK) += highbank.dtb \
+ ecx-2000.dtb
dtb-$(CONFIG_ARCH_INTEGRATOR) += integratorap.dtb \
integratorcp.dtb
dtb-$(CONFIG_ARCH_LPC32XX) += ea3250.dtb phy3250.dtb
diff --git a/arch/arm/boot/dts/ecx-2000.dts b/arch/arm/boot/dts/ecx-2000.dts
new file mode 100644
index 000000000000..46477ac1de99
--- /dev/null
+++ b/arch/arm/boot/dts/ecx-2000.dts
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2011-2012 Calxeda, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/dts-v1/;
+
+/* First 4KB has pen for secondary cores. */
+/memreserve/ 0x00000000 0x0001000;
+
+/ {
+ model = "Calxeda ECX-2000";
+ compatible = "calxeda,ecx-2000";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ clock-ranges;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ compatible = "arm,cortex-a15";
+ reg = <0>;
+ clocks = <&a9pll>;
+ clock-names = "cpu";
+ };
+
+ cpu@1 {
+ compatible = "arm,cortex-a15";
+ reg = <1>;
+ clocks = <&a9pll>;
+ clock-names = "cpu";
+ };
+
+ cpu@2 {
+ compatible = "arm,cortex-a15";
+ reg = <2>;
+ clocks = <&a9pll>;
+ clock-names = "cpu";
+ };
+
+ cpu@3 {
+ compatible = "arm,cortex-a15";
+ reg = <3>;
+ clocks = <&a9pll>;
+ clock-names = "cpu";
+ };
+ };
+
+ memory@0 {
+ name = "memory";
+ device_type = "memory";
+ reg = <0x00000000 0x00000000 0x00000000 0xff800000>;
+ };
+
+ memory@200000000 {
+ name = "memory";
+ device_type = "memory";
+ reg = <0x00000002 0x00000000 0x00000003 0x00000000>;
+ };
+
+ soc {
+ ranges = <0x00000000 0x00000000 0x00000000 0xffffffff>;
+
+ timer {
+ compatible = "arm,cortex-a15-timer", "arm,armv7-timer"; interrupts = <1 13 0xf08>,
+ <1 14 0xf08>,
+ <1 11 0xf08>,
+ <1 10 0xf08>;
+ };
+
+ intc: interrupt-controller@fff11000 {
+ compatible = "arm,cortex-a15-gic";
+ #interrupt-cells = <3>;
+ #size-cells = <0>;
+ #address-cells = <1>;
+ interrupt-controller;
+ interrupts = <1 9 0xf04>;
+ reg = <0xfff11000 0x1000>,
+ <0xfff12000 0x1000>,
+ <0xfff14000 0x2000>,
+ <0xfff16000 0x2000>;
+ };
+
+ pmu {
+ compatible = "arm,cortex-a9-pmu";
+ interrupts = <0 76 4 0 75 4 0 74 4 0 73 4>;
+ };
+ };
+};
+
+/include/ "ecx-common.dtsi"
diff --git a/arch/arm/boot/dts/ecx-common.dtsi b/arch/arm/boot/dts/ecx-common.dtsi
new file mode 100644
index 000000000000..d61b535f682a
--- /dev/null
+++ b/arch/arm/boot/dts/ecx-common.dtsi
@@ -0,0 +1,237 @@
+/*
+ * Copyright 2011-2012 Calxeda, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/ {
+ chosen {
+ bootargs = "console=ttyAMA0";
+ };
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ interrupt-parent = <&intc>;
+
+ sata@ffe08000 {
+ compatible = "calxeda,hb-ahci";
+ reg = <0xffe08000 0x10000>;
+ interrupts = <0 83 4>;
+ dma-coherent;
+ calxeda,port-phys = <&combophy5 0 &combophy0 0
+ &combophy0 1 &combophy0 2
+ &combophy0 3>;
+ };
+
+ sdhci@ffe0e000 {
+ compatible = "calxeda,hb-sdhci";
+ reg = <0xffe0e000 0x1000>;
+ interrupts = <0 90 4>;
+ clocks = <&eclk>;
+ status = "disabled";
+ };
+
+ memory-controller@fff00000 {
+ compatible = "calxeda,hb-ddr-ctrl";
+ reg = <0xfff00000 0x1000>;
+ interrupts = <0 91 4>;
+ };
+
+ ipc@fff20000 {
+ compatible = "arm,pl320", "arm,primecell";
+ reg = <0xfff20000 0x1000>;
+ interrupts = <0 7 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
+ };
+
+ gpioe: gpio@fff30000 {
+ #gpio-cells = <2>;
+ compatible = "arm,pl061", "arm,primecell";
+ gpio-controller;
+ reg = <0xfff30000 0x1000>;
+ interrupts = <0 14 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
+ status = "disabled";
+ };
+
+ gpiof: gpio@fff31000 {
+ #gpio-cells = <2>;
+ compatible = "arm,pl061", "arm,primecell";
+ gpio-controller;
+ reg = <0xfff31000 0x1000>;
+ interrupts = <0 15 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
+ status = "disabled";
+ };
+
+ gpiog: gpio@fff32000 {
+ #gpio-cells = <2>;
+ compatible = "arm,pl061", "arm,primecell";
+ gpio-controller;
+ reg = <0xfff32000 0x1000>;
+ interrupts = <0 16 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
+ status = "disabled";
+ };
+
+ gpioh: gpio@fff33000 {
+ #gpio-cells = <2>;
+ compatible = "arm,pl061", "arm,primecell";
+ gpio-controller;
+ reg = <0xfff33000 0x1000>;
+ interrupts = <0 17 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
+ status = "disabled";
+ };
+
+ timer@fff34000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0xfff34000 0x1000>;
+ interrupts = <0 18 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
+ };
+
+ rtc@fff35000 {
+ compatible = "arm,pl031", "arm,primecell";
+ reg = <0xfff35000 0x1000>;
+ interrupts = <0 19 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
+ };
+
+ serial@fff36000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0xfff36000 0x1000>;
+ interrupts = <0 20 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
+ };
+
+ smic@fff3a000 {
+ compatible = "ipmi-smic";
+ device_type = "ipmi";
+ reg = <0xfff3a000 0x1000>;
+ interrupts = <0 24 4>;
+ reg-size = <4>;
+ reg-spacing = <4>;
+ };
+
+ sregs@fff3c000 {
+ compatible = "calxeda,hb-sregs";
+ reg = <0xfff3c000 0x1000>;
+
+ clocks {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ osc: oscillator {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <33333000>;
+ };
+
+ ddrpll: ddrpll {
+ #clock-cells = <0>;
+ compatible = "calxeda,hb-pll-clock";
+ clocks = <&osc>;
+ reg = <0x108>;
+ };
+
+ a9pll: a9pll {
+ #clock-cells = <0>;
+ compatible = "calxeda,hb-pll-clock";
+ clocks = <&osc>;
+ reg = <0x100>;
+ };
+
+ a9periphclk: a9periphclk {
+ #clock-cells = <0>;
+ compatible = "calxeda,hb-a9periph-clock";
+ clocks = <&a9pll>;
+ reg = <0x104>;
+ };
+
+ a9bclk: a9bclk {
+ #clock-cells = <0>;
+ compatible = "calxeda,hb-a9bus-clock";
+ clocks = <&a9pll>;
+ reg = <0x104>;
+ };
+
+ emmcpll: emmcpll {
+ #clock-cells = <0>;
+ compatible = "calxeda,hb-pll-clock";
+ clocks = <&osc>;
+ reg = <0x10C>;
+ };
+
+ eclk: eclk {
+ #clock-cells = <0>;
+ compatible = "calxeda,hb-emmc-clock";
+ clocks = <&emmcpll>;
+ reg = <0x114>;
+ };
+
+ pclk: pclk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <150000000>;
+ };
+ };
+ };
+
+ dma@fff3d000 {
+ compatible = "arm,pl330", "arm,primecell";
+ reg = <0xfff3d000 0x1000>;
+ interrupts = <0 92 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
+ };
+
+ ethernet@fff50000 {
+ compatible = "calxeda,hb-xgmac";
+ reg = <0xfff50000 0x1000>;
+ interrupts = <0 77 4 0 78 4 0 79 4>;
+ dma-coherent;
+ };
+
+ ethernet@fff51000 {
+ compatible = "calxeda,hb-xgmac";
+ reg = <0xfff51000 0x1000>;
+ interrupts = <0 80 4 0 81 4 0 82 4>;
+ dma-coherent;
+ };
+
+ combophy0: combo-phy@fff58000 {
+ compatible = "calxeda,hb-combophy";
+ #phy-cells = <1>;
+ reg = <0xfff58000 0x1000>;
+ phydev = <5>;
+ };
+
+ combophy5: combo-phy@fff5d000 {
+ compatible = "calxeda,hb-combophy";
+ #phy-cells = <1>;
+ reg = <0xfff5d000 0x1000>;
+ phydev = <31>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/highbank.dts b/arch/arm/boot/dts/highbank.dts
index 0c6fc34821f9..a9ae5d32e80d 100644
--- a/arch/arm/boot/dts/highbank.dts
+++ b/arch/arm/boot/dts/highbank.dts
@@ -69,16 +69,8 @@
reg = <0x00000000 0xff900000>;
};
- chosen {
- bootargs = "console=ttyAMA0";
- };
-
soc {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "simple-bus";
- interrupt-parent = <&intc>;
- ranges;
+ ranges = <0x00000000 0x00000000 0xffffffff>;
timer@fff10600 {
compatible = "arm,cortex-a9-twd-timer";
@@ -117,173 +109,6 @@
interrupts = <0 76 4 0 75 4 0 74 4 0 73 4>;
};
- sata@ffe08000 {
- compatible = "calxeda,hb-ahci";
- reg = <0xffe08000 0x10000>;
- interrupts = <0 83 4>;
- calxeda,port-phys = <&combophy5 0 &combophy0 0
- &combophy0 1 &combophy0 2
- &combophy0 3>;
- dma-coherent;
- };
-
- sdhci@ffe0e000 {
- compatible = "calxeda,hb-sdhci";
- reg = <0xffe0e000 0x1000>;
- interrupts = <0 90 4>;
- clocks = <&eclk>;
- };
-
- memory-controller@fff00000 {
- compatible = "calxeda,hb-ddr-ctrl";
- reg = <0xfff00000 0x1000>;
- interrupts = <0 91 4>;
- };
-
- ipc@fff20000 {
- compatible = "arm,pl320", "arm,primecell";
- reg = <0xfff20000 0x1000>;
- interrupts = <0 7 4>;
- clocks = <&pclk>;
- clock-names = "apb_pclk";
- };
-
- gpioe: gpio@fff30000 {
- #gpio-cells = <2>;
- compatible = "arm,pl061", "arm,primecell";
- gpio-controller;
- reg = <0xfff30000 0x1000>;
- interrupts = <0 14 4>;
- clocks = <&pclk>;
- clock-names = "apb_pclk";
- };
-
- gpiof: gpio@fff31000 {
- #gpio-cells = <2>;
- compatible = "arm,pl061", "arm,primecell";
- gpio-controller;
- reg = <0xfff31000 0x1000>;
- interrupts = <0 15 4>;
- clocks = <&pclk>;
- clock-names = "apb_pclk";
- };
-
- gpiog: gpio@fff32000 {
- #gpio-cells = <2>;
- compatible = "arm,pl061", "arm,primecell";
- gpio-controller;
- reg = <0xfff32000 0x1000>;
- interrupts = <0 16 4>;
- clocks = <&pclk>;
- clock-names = "apb_pclk";
- };
-
- gpioh: gpio@fff33000 {
- #gpio-cells = <2>;
- compatible = "arm,pl061", "arm,primecell";
- gpio-controller;
- reg = <0xfff33000 0x1000>;
- interrupts = <0 17 4>;
- clocks = <&pclk>;
- clock-names = "apb_pclk";
- };
-
- timer {
- compatible = "arm,sp804", "arm,primecell";
- reg = <0xfff34000 0x1000>;
- interrupts = <0 18 4>;
- clocks = <&pclk>;
- clock-names = "apb_pclk";
- };
-
- rtc@fff35000 {
- compatible = "arm,pl031", "arm,primecell";
- reg = <0xfff35000 0x1000>;
- interrupts = <0 19 4>;
- clocks = <&pclk>;
- clock-names = "apb_pclk";
- };
-
- serial@fff36000 {
- compatible = "arm,pl011", "arm,primecell";
- reg = <0xfff36000 0x1000>;
- interrupts = <0 20 4>;
- clocks = <&pclk>;
- clock-names = "apb_pclk";
- };
-
- smic@fff3a000 {
- compatible = "ipmi-smic";
- device_type = "ipmi";
- reg = <0xfff3a000 0x1000>;
- interrupts = <0 24 4>;
- reg-size = <4>;
- reg-spacing = <4>;
- };
-
- sregs@fff3c000 {
- compatible = "calxeda,hb-sregs";
- reg = <0xfff3c000 0x1000>;
-
- clocks {
- #address-cells = <1>;
- #size-cells = <0>;
-
- osc: oscillator {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <33333000>;
- };
-
- ddrpll: ddrpll {
- #clock-cells = <0>;
- compatible = "calxeda,hb-pll-clock";
- clocks = <&osc>;
- reg = <0x108>;
- };
-
- a9pll: a9pll {
- #clock-cells = <0>;
- compatible = "calxeda,hb-pll-clock";
- clocks = <&osc>;
- reg = <0x100>;
- };
-
- a9periphclk: a9periphclk {
- #clock-cells = <0>;
- compatible = "calxeda,hb-a9periph-clock";
- clocks = <&a9pll>;
- reg = <0x104>;
- };
-
- a9bclk: a9bclk {
- #clock-cells = <0>;
- compatible = "calxeda,hb-a9bus-clock";
- clocks = <&a9pll>;
- reg = <0x104>;
- };
-
- emmcpll: emmcpll {
- #clock-cells = <0>;
- compatible = "calxeda,hb-pll-clock";
- clocks = <&osc>;
- reg = <0x10C>;
- };
-
- eclk: eclk {
- #clock-cells = <0>;
- compatible = "calxeda,hb-emmc-clock";
- clocks = <&emmcpll>;
- reg = <0x114>;
- };
-
- pclk: pclk {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <150000000>;
- };
- };
- };
sregs@fff3c200 {
compatible = "calxeda,hb-sregs-l2-ecc";
@@ -291,38 +116,7 @@
interrupts = <0 71 4 0 72 4>;
};
- dma@fff3d000 {
- compatible = "arm,pl330", "arm,primecell";
- reg = <0xfff3d000 0x1000>;
- interrupts = <0 92 4>;
- clocks = <&pclk>;
- clock-names = "apb_pclk";
- };
-
- ethernet@fff50000 {
- compatible = "calxeda,hb-xgmac";
- reg = <0xfff50000 0x1000>;
- interrupts = <0 77 4 0 78 4 0 79 4>;
- };
-
- ethernet@fff51000 {
- compatible = "calxeda,hb-xgmac";
- reg = <0xfff51000 0x1000>;
- interrupts = <0 80 4 0 81 4 0 82 4>;
- };
-
- combophy0: combo-phy@fff58000 {
- compatible = "calxeda,hb-combophy";
- #phy-cells = <1>;
- reg = <0xfff58000 0x1000>;
- phydev = <5>;
- };
-
- combophy5: combo-phy@fff5d000 {
- compatible = "calxeda,hb-combophy";
- #phy-cells = <1>;
- reg = <0xfff5d000 0x1000>;
- phydev = <31>;
- };
};
};
+
+/include/ "ecx-common.dtsi"
diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
index b22d700fea27..6ec73f91a1d6 100644
--- a/arch/arm/kernel/smp_twd.c
+++ b/arch/arm/kernel/smp_twd.c
@@ -366,10 +366,8 @@ void __init twd_local_timer_of_register(void)
int err;
np = of_find_matching_node(NULL, twd_of_match);
- if (!np) {
- err = -ENODEV;
- goto out;
- }
+ if (!np)
+ return -ENODEV;
twd_ppi = irq_of_parse_and_map(np, 0);
if (!twd_ppi) {
diff --git a/arch/arm/mach-highbank/Kconfig b/arch/arm/mach-highbank/Kconfig
index 0e1d0a42a3ea..551c97e87a78 100644
--- a/arch/arm/mach-highbank/Kconfig
+++ b/arch/arm/mach-highbank/Kconfig
@@ -1,5 +1,5 @@
config ARCH_HIGHBANK
- bool "Calxeda ECX-1000 (Highbank)" if ARCH_MULTI_V7
+ bool "Calxeda ECX-1000/2000 (Highbank/Midway)" if ARCH_MULTI_V7
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARM_AMBA
select ARM_GIC
diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
index 40e36a50304c..3e60e5744157 100644
--- a/arch/arm/mach-highbank/highbank.c
+++ b/arch/arm/mach-highbank/highbank.c
@@ -26,32 +26,22 @@
#include <linux/smp.h>
#include <linux/amba/bus.h>
+#include <asm/arch_timer.h>
#include <asm/cacheflush.h>
#include <asm/smp_plat.h>
-#include <asm/smp_scu.h>
#include <asm/smp_twd.h>
#include <asm/hardware/arm_timer.h>
#include <asm/hardware/timer-sp.h>
#include <asm/hardware/gic.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include "core.h"
#include "sysregs.h"
void __iomem *sregs_base;
-
-#define HB_SCU_VIRT_BASE 0xfee00000
-void __iomem *scu_base_addr = ((void __iomem *)(HB_SCU_VIRT_BASE));
-
-static struct map_desc scu_io_desc __initdata = {
- .virtual = HB_SCU_VIRT_BASE,
- .pfn = 0, /* run-time */
- .length = SZ_4K,
- .type = MT_DEVICE,
-};
+void __iomem *scu_base_addr;
static void __init highbank_scu_map_io(void)
{
@@ -60,13 +50,11 @@ static void __init highbank_scu_map_io(void)
/* Get SCU base */
asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (base));
- scu_io_desc.pfn = __phys_to_pfn(base);
- iotable_init(&scu_io_desc, 1);
+ scu_base_addr = ioremap(base, SZ_4K);
}
static void __init highbank_map_io(void)
{
- highbank_scu_map_io();
highbank_lluart_map_io();
}
@@ -83,6 +71,7 @@ void highbank_set_cpu_jump(int cpu, void *jump_addr)
}
const static struct of_device_id irq_match[] = {
+ { .compatible = "arm,cortex-a15-gic", .data = gic_of_init, },
{ .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
{}
};
@@ -99,6 +88,9 @@ static void __init highbank_init_irq(void)
{
of_irq_init(irq_match);
+ if (of_find_compatible_node(NULL, NULL, "arm,cortex-a9"))
+ highbank_scu_map_io();
+
#ifdef CONFIG_CACHE_L2X0
/* Enable PL310 L2 Cache controller */
highbank_smc1(0x102, 0x1);
@@ -136,6 +128,9 @@ static void __init highbank_timer_init(void)
sp804_clockevents_init(timer_base, irq, "timer0");
twd_local_timer_of_register();
+
+ arch_timer_of_register();
+ arch_timer_sched_clock_init();
}
static struct sys_timer highbank_timer = {
@@ -145,7 +140,6 @@ static struct sys_timer highbank_timer = {
static void highbank_power_off(void)
{
hignbank_set_pwr_shutdown();
- scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
while (1)
cpu_do_idle();
@@ -211,6 +205,7 @@ static void __init highbank_init(void)
static const char *highbank_match[] __initconst = {
"calxeda,highbank",
+ "calxeda,ecx-2000",
NULL,
};
diff --git a/arch/arm/mach-highbank/hotplug.c b/arch/arm/mach-highbank/hotplug.c
index 2c1b8c3c8e45..7b60faccd551 100644
--- a/arch/arm/mach-highbank/hotplug.c
+++ b/arch/arm/mach-highbank/hotplug.c
@@ -14,13 +14,11 @@
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/smp.h>
-#include <asm/smp_scu.h>
#include <asm/cacheflush.h>
#include "core.h"
+#include "sysregs.h"
extern void secondary_startup(void);
@@ -33,7 +31,7 @@ void __ref highbank_cpu_die(unsigned int cpu)
flush_cache_all();
highbank_set_cpu_jump(cpu, secondary_startup);
- scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
+ highbank_set_core_pwr();
cpu_do_idle();
diff --git a/arch/arm/mach-highbank/platsmp.c b/arch/arm/mach-highbank/platsmp.c
index fa9560ec6e70..1129957f6c1d 100644
--- a/arch/arm/mach-highbank/platsmp.c
+++ b/arch/arm/mach-highbank/platsmp.c
@@ -42,9 +42,7 @@ static int __cpuinit highbank_boot_secondary(unsigned int cpu, struct task_struc
*/
static void __init highbank_smp_init_cpus(void)
{
- unsigned int i, ncores;
-
- ncores = scu_get_core_count(scu_base_addr);
+ unsigned int i, ncores = 4;
/* sanity check */
if (ncores > NR_CPUS) {
@@ -65,7 +63,8 @@ static void __init highbank_smp_prepare_cpus(unsigned int max_cpus)
{
int i;
- scu_enable(scu_base_addr);
+ if (scu_base_addr)
+ scu_enable(scu_base_addr);
/*
* Write the address of secondary startup into the jump table
diff --git a/arch/arm/mach-highbank/pm.c b/arch/arm/mach-highbank/pm.c
index de866f21331f..74aa135966f0 100644
--- a/arch/arm/mach-highbank/pm.c
+++ b/arch/arm/mach-highbank/pm.c
@@ -19,7 +19,6 @@
#include <linux/suspend.h>
#include <asm/proc-fns.h>
-#include <asm/smp_scu.h>
#include <asm/suspend.h>
#include "core.h"
@@ -35,8 +34,6 @@ static int highbank_pm_enter(suspend_state_t state)
{
hignbank_set_pwr_suspend();
highbank_set_cpu_jump(0, cpu_resume);
-
- scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
cpu_suspend(0, highbank_suspend_finish);
return 0;
diff --git a/arch/arm/mach-highbank/sysregs.h b/arch/arm/mach-highbank/sysregs.h
index 0e913389f445..e13e8ea7c6cb 100644
--- a/arch/arm/mach-highbank/sysregs.h
+++ b/arch/arm/mach-highbank/sysregs.h
@@ -17,6 +17,10 @@
#define _MACH_HIGHBANK__SYSREGS_H_
#include <linux/io.h>
+#include <linux/smp.h>
+#include <asm/smp_plat.h>
+#include <asm/smp_scu.h>
+#include "core.h"
extern void __iomem *sregs_base;
@@ -29,24 +33,39 @@ extern void __iomem *sregs_base;
#define HB_PWR_HARD_RESET 2
#define HB_PWR_SHUTDOWN 3
+#define SREG_CPU_PWR_CTRL(c) (0x200 + ((c) * 4))
+
+static inline void highbank_set_core_pwr(void)
+{
+ int cpu = cpu_logical_map(smp_processor_id());
+ if (scu_base_addr)
+ scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
+ else
+ writel_relaxed(1, sregs_base + SREG_CPU_PWR_CTRL(cpu));
+}
+
static inline void hignbank_set_pwr_suspend(void)
{
writel(HB_PWR_SUSPEND, sregs_base + HB_SREG_A9_PWR_REQ);
+ highbank_set_core_pwr();
}
static inline void hignbank_set_pwr_shutdown(void)
{
writel(HB_PWR_SHUTDOWN, sregs_base + HB_SREG_A9_PWR_REQ);
+ highbank_set_core_pwr();
}
static inline void hignbank_set_pwr_soft_reset(void)
{
writel(HB_PWR_SOFT_RESET, sregs_base + HB_SREG_A9_PWR_REQ);
+ highbank_set_core_pwr();
}
static inline void hignbank_set_pwr_hard_reset(void)
{
writel(HB_PWR_HARD_RESET, sregs_base + HB_SREG_A9_PWR_REQ);
+ highbank_set_core_pwr();
}
#endif
diff --git a/arch/arm/mach-highbank/system.c b/arch/arm/mach-highbank/system.c
index 82c27230d4a9..194a5bbb7363 100644
--- a/arch/arm/mach-highbank/system.c
+++ b/arch/arm/mach-highbank/system.c
@@ -14,7 +14,6 @@
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/io.h>
-#include <asm/smp_scu.h>
#include <asm/proc-fns.h>
#include "core.h"
@@ -27,7 +26,6 @@ void highbank_restart(char mode, const char *cmd)
else
hignbank_set_pwr_soft_reset();
- scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
cpu_do_idle();
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.