diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/Kconfig.debug | 14 | ||||
| -rw-r--r-- | arch/arm/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/boot/dts/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/boot/dts/zx296702-ad1.dts | 48 | ||||
| -rw-r--r-- | arch/arm/boot/dts/zx296702.dtsi | 142 | ||||
| -rw-r--r-- | arch/arm/configs/zx_defconfig | 122 | ||||
| -rw-r--r-- | arch/arm/mach-zx/Kconfig | 21 | ||||
| -rw-r--r-- | arch/arm/mach-zx/Makefile | 3 | ||||
| -rw-r--r-- | arch/arm/mach-zx/core.h | 16 | ||||
| -rw-r--r-- | arch/arm/mach-zx/headsmp.S | 30 | ||||
| -rw-r--r-- | arch/arm/mach-zx/platsmp.c | 186 | ||||
| -rw-r--r-- | arch/arm/mach-zx/zx296702-pm-domain.c | 202 | ||||
| -rw-r--r-- | arch/arm/mach-zx/zx296702.c | 22 |
14 files changed, 0 insertions, 810 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 9d9a7060d365..9f605ab54570 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -718,8 +718,6 @@ source "arch/arm/mach-vexpress/Kconfig" source "arch/arm/mach-vt8500/Kconfig" -source "arch/arm/mach-zx/Kconfig" - source "arch/arm/mach-zynq/Kconfig" # ARMv7-M architecture diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index fe8b95069d31..543e29068c08 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -1353,18 +1353,6 @@ choice This option selects UART0 on VIA/Wondermedia System-on-a-chip devices, including VT8500, WM8505, WM8650 and WM8850. - config DEBUG_ZTE_ZX - bool "Use ZTE ZX UART" - select DEBUG_UART_PL01X - depends on ARCH_ZX - help - Say Y here if you are enabling ZTE ZX296702 SOC and need - debug uart support. - - This option is preferred over the platform specific - options; the platform specific options are deprecated - and will be soon removed. - config DEBUG_ZYNQ_UART0 bool "Kernel low-level debugging on Xilinx Zynq using UART0" depends on ARCH_ZYNQ @@ -1599,7 +1587,6 @@ config DEBUG_UART_PHYS default 0x02531000 if DEBUG_KEYSTONE_UART1 default 0x03010fe0 if ARCH_RPC default 0x07000000 if DEBUG_SUN9I_UART0 - default 0x09405000 if DEBUG_ZTE_ZX default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \ DEBUG_VEXPRESS_UART0_CA9 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT @@ -1782,7 +1769,6 @@ config DEBUG_UART_VIRT default 0xfb020000 if DEBUG_OMAP3UART3 default 0xfb042000 if DEBUG_OMAP3UART4 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT - default 0xfc705000 if DEBUG_ZTE_ZX default 0xfcfe8600 if DEBUG_BCM63XX_UART default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX default 0xfd883000 if DEBUG_ALPINE_UART0 diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 7c4b50852a78..7b8eed93f1fa 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -220,7 +220,6 @@ machine-$(CONFIG_ARCH_U8500) += ux500 machine-$(CONFIG_ARCH_VERSATILE) += versatile machine-$(CONFIG_ARCH_VEXPRESS) += vexpress machine-$(CONFIG_ARCH_VT8500) += vt8500 -machine-$(CONFIG_ARCH_ZX) += zx machine-$(CONFIG_ARCH_ZYNQ) += zynq machine-$(CONFIG_PLAT_SPEAR) += spear diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index da413b4d5c3f..5fcae846aa00 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -1387,7 +1387,6 @@ dtb-$(CONFIG_ARCH_MSTARV7) += \ mstar-infinity2m-ssd202d-ssd201htv2.dtb \ mstar-infinity3-msc313e-breadbee.dtb \ mstar-mercury5-ssc8336n-midrived08.dtb -dtb-$(CONFIG_ARCH_ZX) += zx296702-ad1.dtb dtb-$(CONFIG_ARCH_ASPEED) += \ aspeed-ast2500-evb.dtb \ aspeed-ast2600-evb.dtb \ diff --git a/arch/arm/boot/dts/zx296702-ad1.dts b/arch/arm/boot/dts/zx296702-ad1.dts deleted file mode 100644 index bd9400840023..000000000000 --- a/arch/arm/boot/dts/zx296702-ad1.dts +++ /dev/null @@ -1,48 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 - -/dts-v1/; - -#include "zx296702.dtsi" - -/ { - model = "ZTE ZX296702 AD1 Board"; - compatible = "zte,zx296702-ad1", "zte,zx296702"; - - aliases { - serial0 = &uart0; - serial1 = &uart1; - }; - - memory { - device_type = "memory"; - reg = <0x50000000 0x20000000>; - }; -}; - -&mmc0 { - supports-highspeed; - non-removable; - disable-wp; - status = "okay"; - - slot@0 { - reg = <0>; - bus-width = <4>; - }; -}; - -&mmc1 { - supports-highspeed; - non-removable; - disable-wp; - status = "okay"; - - slot@0 { - reg = <0>; - bus-width = <8>; - }; -}; - -&uart0 { - status = "okay"; -}; diff --git a/arch/arm/boot/dts/zx296702.dtsi b/arch/arm/boot/dts/zx296702.dtsi deleted file mode 100644 index f378c661b3bf..000000000000 --- a/arch/arm/boot/dts/zx296702.dtsi +++ /dev/null @@ -1,142 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 - -#include <dt-bindings/clock/zx296702-clock.h> -#include <dt-bindings/interrupt-controller/arm-gic.h> - -/ { - #address-cells = <1>; - #size-cells = <1>; - - cpus { - #address-cells = <1>; - #size-cells = <0>; - enable-method = "zte,zx296702-smp"; - - cpu@0 { - compatible = "arm,cortex-a9"; - device_type = "cpu"; - next-level-cache = <&l2cc>; - reg = <0>; - }; - - cpu@1 { - compatible = "arm,cortex-a9"; - device_type = "cpu"; - next-level-cache = <&l2cc>; - reg = <1>; - }; - }; - - - soc { - #address-cells = <1>; - #size-cells = <1>; - compatible = "simple-bus"; - interrupt-parent = <&intc>; - ranges; - - matrix: bus-matrix@400000 { - compatible = "zte,zx-bus-matrix"; - reg = <0x00400000 0x1000>; - }; - - intc: interrupt-controller@801000 { - compatible = "arm,cortex-a9-gic"; - #interrupt-cells = <3>; - #address-cells = <1>; - #size-cells = <1>; - interrupt-controller; - reg = <0x00801000 0x1000>, - <0x00800100 0x100>; - }; - - global_timer: timer@8000200 { - compatible = "arm,cortex-a9-global-timer"; - reg = <0x00800200 0x20>; - interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>; - interrupt-parent = <&intc>; - clocks = <&topclk ZX296702_A9_PERIPHCLK>; - }; - - l2cc: cache-controller@c00000 { - compatible = "arm,pl310-cache"; - reg = <0x00c00000 0x1000>; - cache-unified; - cache-level = <2>; - arm,data-latency = <1 1 1>; - arm,tag-latency = <1 1 1>; - arm,double-linefill = <1>; - arm,double-linefill-incr = <0>; - }; - - pcu: pcu@a0008000 { - compatible = "zte,zx296702-pcu"; - reg = <0xa0008000 0x1000>; - }; - - topclk: topclk@9800000 { - compatible = "zte,zx296702-topcrm-clk"; - reg = <0x09800000 0x1000>; - #clock-cells = <1>; - }; - - lsp1clk: lsp1clk@9400000 { - compatible = "zte,zx296702-lsp1crpm-clk"; - reg = <0x09400000 0x1000>; - #clock-cells = <1>; - }; - - lsp0clk: lsp0clk@b000000 { - compatible = "zte,zx296702-lsp0crpm-clk"; - reg = <0x0b000000 0x1000>; - #clock-cells = <1>; - }; - - uart0: serial@9405000 { - compatible = "zte,zx296702-uart"; - reg = <0x09405000 0x1000>; - interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&lsp1clk ZX296702_UART0_WCLK>; - status = "disabled"; - }; - - uart1: serial@9406000 { - compatible = "zte,zx296702-uart"; - reg = <0x09406000 0x1000>; - interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&lsp1clk ZX296702_UART1_WCLK>; - status = "disabled"; - }; - - mmc0: mmc@9408000 { - compatible = "snps,dw-mshc"; - #address-cells = <1>; - #size-cells = <0>; - reg = <0x09408000 0x1000>; - interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>; - fifo-depth = <32>; - clocks = <&lsp1clk ZX296702_SDMMC0_PCLK>, - <&lsp1clk ZX296702_SDMMC0_WCLK>; - clock-names = "biu", "ciu"; - status = "disabled"; - }; - - mmc1: mmc@b003000 { - compatible = "snps,dw-mshc"; - #address-cells = <1>; - #size-cells = <0>; - reg = <0x0b003000 0x1000>; - interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>; - fifo-depth = <32>; - clocks = <&lsp0clk ZX296702_SDMMC1_PCLK>, - <&lsp0clk ZX296702_SDMMC1_WCLK>; - clock-names = "biu", "ciu"; - status = "disabled"; - }; - - sysctrl: sysctrl@a0007000 { - compatible = "zte,sysctrl", "syscon"; - reg = <0xa0007000 0x1000>; - }; - }; -}; diff --git a/arch/arm/configs/zx_defconfig b/arch/arm/configs/zx_defconfig deleted file mode 100644 index a046a492bfa7..000000000000 --- a/arch/arm/configs/zx_defconfig +++ /dev/null @@ -1,122 +0,0 @@ -CONFIG_SYSVIPC=y -CONFIG_NO_HZ=y -CONFIG_HIGH_RES_TIMERS=y -CONFIG_LOG_BUF_SHIFT=14 -CONFIG_CGROUPS=y -CONFIG_CGROUP_DEBUG=y -CONFIG_CGROUP_FREEZER=y -CONFIG_CGROUP_CPUACCT=y -CONFIG_CGROUP_SCHED=y -CONFIG_RT_GROUP_SCHED=y -CONFIG_NAMESPACES=y -CONFIG_USER_NS=y -CONFIG_BLK_DEV_INITRD=y -CONFIG_KALLSYMS_ALL=y -CONFIG_EMBEDDED=y -CONFIG_PERF_EVENTS=y -CONFIG_SLAB=y -# CONFIG_BLK_DEV_BSG is not set -CONFIG_ARCH_ZX=y -CONFIG_SOC_ZX296702=y -# CONFIG_SWP_EMULATE is not set -CONFIG_ARM_ERRATA_754322=y -CONFIG_ARM_ERRATA_775420=y -CONFIG_SMP=y -CONFIG_VMSPLIT_2G=y -CONFIG_PREEMPT=y -CONFIG_AEABI=y -CONFIG_KSM=y -# CONFIG_IOMMU_SUPPORT is not set -CONFIG_VFP=y -CONFIG_NEON=y -CONFIG_KERNEL_MODE_NEON=y -# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set -CONFIG_HIBERNATION=y -CONFIG_PM_RUNTIME=y -CONFIG_PM_DEBUG=y -CONFIG_SUSPEND_TIME=y -CONFIG_ZBOOT_ROM_TEXT=0x0 -CONFIG_ZBOOT_ROM_BSS=0x0 -CONFIG_CMDLINE="console=ttyAMA0,115200 debug earlyprintk root=/dev/ram rw rootwait" -#CONFIG_NET is not set -CONFIG_DEVTMPFS=y -CONFIG_DEVTMPFS_MOUNT=y -CONFIG_DMA_CMA=y -CONFIG_CMA_SIZE_MBYTES=192 -CONFIG_BLK_DEV_LOOP=y -CONFIG_BLK_DEV_RAM=y -CONFIG_BLK_DEV_RAM_COUNT=1 -CONFIG_BLK_DEV_RAM_SIZE=8192 -CONFIG_UID_STAT=y -CONFIG_SCSI=y -CONFIG_BLK_DEV_SD=y -CONFIG_CHR_DEV_SG=y -CONFIG_CHR_DEV_SCH=y -CONFIG_SCSI_MULTI_LUN=y -CONFIG_MD=y -CONFIG_BLK_DEV_DM=y -CONFIG_DM_CRYPT=y -CONFIG_DM_UEVENT=y -CONFIG_DM_VERITY=y -CONFIG_NETDEVICES=y -# CONFIG_INPUT_MOUSE is not set -CONFIG_SERIO=y -CONFIG_SERIO_LIBPS2=y -CONFIG_SPI=y -CONFIG_LOGO=y -CONFIG_SERIAL_CORE=y -CONFIG_SERIAL_CORE_CONSOLE=y -CONFIG_CONSOLE_POLL=y -CONFIG_SERIAL_AMBA_PL011=y -CONFIG_SERIAL_AMBA_PL011_CONSOLE=y -CONFIG_SERIAL_OF_PLATFORM=y -# CONFIG_LEGACY_PTYS is not set -# CONFIG_HW_RANDOM is not set -# CONFIG_HWMON is not set -# CONFIG_USB_SUPPORT is not set -CONFIG_MMC=y -CONFIG_MMC_BLOCK_MINORS=16 -CONFIG_MMC_DW=y -CONFIG_EXT2_FS=y -CONFIG_EXT4_FS=y -CONFIG_EXT4_FS_POSIX_ACL=y -CONFIG_EXT4_FS_SECURITY=y -CONFIG_EXT4_DEBUG=y -CONFIG_FUSE_FS=y -CONFIG_MSDOS_FS=y -CONFIG_VFAT_FS=y -CONFIG_FAT_DEFAULT_CODEPAGE=936 -CONFIG_TMPFS=y -CONFIG_TMPFS_POSIX_ACL=y -#CONFIG_NFS_FS is not set -CONFIG_NLS_CODEPAGE_936=y -CONFIG_NLS_ISO8859_1=y -CONFIG_NLS_UTF8=y -CONFIG_PRINTK_TIME=y -CONFIG_MAGIC_SYSRQ=y -CONFIG_DEBUG_KERNEL=y -CONFIG_DEBUG_INFO=y -CONFIG_FRAME_WARN=4096 -CONFIG_DEBUG_FS=y -CONFIG_DEBUG_MEMORY_INIT=y -CONFIG_PANIC_TIMEOUT=5 -# CONFIG_SCHED_DEBUG is not set -CONFIG_SCHEDSTATS=y -CONFIG_TIMER_STATS=y -CONFIG_DEBUG_RT_MUTEXES=y -CONFIG_DEBUG_SPINLOCK=y -CONFIG_DEBUG_MUTEXES=y -CONFIG_RCU_CPU_STALL_TIMEOUT=60 -# CONFIG_FTRACE is not set -CONFIG_KGDB=y -CONFIG_KGDB_KDB=y -# CONFIG_ARM_UNWIND is not set -CONFIG_DEBUG_PREEMPT=y -CONFIG_DEBUG_USER=y -CONFIG_DEBUG_LL=y -CONFIG_DYNAMIC_DEBUG=y -CONFIG_STACKTRACE=y -CONFIG_DEBUG_ZTE_ZX=y -CONFIG_EARLY_PRINTK=y -CONFIG_CRYPTO_LZO=y -CONFIG_GPIOLIB=y diff --git a/arch/arm/mach-zx/Kconfig b/arch/arm/mach-zx/Kconfig deleted file mode 100644 index ea29c84a7849..000000000000 --- a/arch/arm/mach-zx/Kconfig +++ /dev/null @@ -1,21 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -menuconfig ARCH_ZX - bool "ZTE ZX family" - depends on ARCH_MULTI_V7 - help - Support for ZTE ZX-based family of processors. TV - set-top-box processor is supported. More will be - added soon. - -if ARCH_ZX - -config SOC_ZX296702 - def_bool y - select ARM_GIC - select ARM_GLOBAL_TIMER - select HAVE_ARM_SCU if SMP - select HAVE_ARM_TWD if SMP - select PM_GENERIC_DOMAINS if PM - help - Support for ZTE ZX296702 SoC which is a dual core CortexA9MP -endif diff --git a/arch/arm/mach-zx/Makefile b/arch/arm/mach-zx/Makefile deleted file mode 100644 index 6f8930cdb8fb..000000000000 --- a/arch/arm/mach-zx/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -obj-$(CONFIG_SOC_ZX296702) += zx296702.o zx296702-pm-domain.o -obj-$(CONFIG_SMP) += headsmp.o platsmp.o diff --git a/arch/arm/mach-zx/core.h b/arch/arm/mach-zx/core.h deleted file mode 100644 index 25fe873892c9..000000000000 --- a/arch/arm/mach-zx/core.h +++ /dev/null @@ -1,16 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright 2014 Linaro Ltd. - * Copyright (C) 2014 ZTE Corporation. - */ - -#ifndef __MACH_ZX_CORE_H -#define __MACH_ZX_CORE_H - -extern void zx_resume_jump(void); -extern size_t zx_suspend_iram_sz; -extern unsigned long zx_secondary_startup_pa; - -void zx_secondary_startup(void); - -#endif /* __MACH_ZX_CORE_H */ diff --git a/arch/arm/mach-zx/headsmp.S b/arch/arm/mach-zx/headsmp.S deleted file mode 100644 index 0846859b0573..000000000000 --- a/arch/arm/mach-zx/headsmp.S +++ /dev/null @@ -1,30 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright 2014 Linaro Ltd. - * Copyright (C) 2014 ZTE Corporation. - */ - -#include <linux/linkage.h> - - .align 3 - .arm - -/* It runs from physical address */ -ENTRY(zx_resume_jump) - adr r1, zx_secondary_startup_pa - ldr r0, [r1] - bx r0 -ENDPROC(zx_resume_jump) - -ENTRY(zx_secondary_startup_pa) - .word zx_secondary_startup_pa - -ENTRY(zx_suspend_iram_sz) - .word . - zx_resume_jump -ENDPROC(zx_secondary_startup_pa) - - -ENTRY(zx_secondary_startup) - bl v7_invalidate_l1 - b secondary_startup -ENDPROC(zx_secondary_startup) diff --git a/arch/arm/mach-zx/platsmp.c b/arch/arm/mach-zx/platsmp.c deleted file mode 100644 index d4e1d3792224..000000000000 --- a/arch/arm/mach-zx/platsmp.c +++ /dev/null @@ -1,186 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright 2014 Linaro Ltd. - * Copyright (C) 2014 ZTE Corporation. - */ - -#include <linux/delay.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/jiffies.h> -#include <linux/of.h> -#include <linux/of_address.h> -#include <linux/smp.h> - -#include <asm/cacheflush.h> -#include <asm/cp15.h> -#include <asm/fncpy.h> -#include <asm/proc-fns.h> -#include <asm/smp_scu.h> -#include <asm/smp_plat.h> - -#include "core.h" - -#define AON_SYS_CTRL_RESERVED1 0xa8 - -#define BUS_MATRIX_REMAP_CONFIG 0x00 - -#define PCU_CPU0_CTRL 0x00 -#define PCU_CPU1_CTRL 0x04 -#define PCU_CPU1_ST 0x0c -#define PCU_GLOBAL_CTRL 0x14 -#define PCU_EXPEND_CONTROL 0x34 - -#define ZX_IRAM_BASE 0x00200000 - -static void __iomem *pcu_base; -static void __iomem *matrix_base; -static void __iomem *scu_base; - -void __init zx_smp_prepare_cpus(unsigned int max_cpus) -{ - struct device_node *np; - unsigned long base = 0; - void __iomem *aonsysctrl_base; - void __iomem *sys_iram; - - base = scu_a9_get_base(); - scu_base = ioremap(base, SZ_256); - if (!scu_base) { - pr_err("%s: failed to map scu\n", __func__); - return; - } - - scu_enable(scu_base); - - np = of_find_compatible_node(NULL, NULL, "zte,sysctrl"); - if (!np) { - pr_err("%s: failed to find sysctrl node\n", __func__); - return; - } - - aonsysctrl_base = of_iomap(np, 0); - if (!aonsysctrl_base) { - pr_err("%s: failed to map aonsysctrl\n", __func__); - of_node_put(np); - return; - } - - /* - * Write the address of secondary startup into the - * system-wide flags register. The BootMonitor waits - * until it receives a soft interrupt, and then the - * secondary CPU branches to this address. - */ - __raw_writel(__pa_symbol(zx_secondary_startup), - aonsysctrl_base + AON_SYS_CTRL_RESERVED1); - - iounmap(aonsysctrl_base); - of_node_put(np); - - np = of_find_compatible_node(NULL, NULL, "zte,zx296702-pcu"); - pcu_base = of_iomap(np, 0); - of_node_put(np); - WARN_ON(!pcu_base); - - np = of_find_compatible_node(NULL, NULL, "zte,zx-bus-matrix"); - matrix_base = of_iomap(np, 0); - of_node_put(np); - WARN_ON(!matrix_base); - - /* Map the first 4 KB IRAM for suspend usage */ - sys_iram = __arm_ioremap_exec(ZX_IRAM_BASE, PAGE_SIZE, false); - zx_secondary_startup_pa = __pa_symbol(zx_secondary_startup); - fncpy(sys_iram, &zx_resume_jump, zx_suspend_iram_sz); -} - -static int zx_boot_secondary(unsigned int cpu, struct task_struct *idle) -{ - static bool first_boot = true; - - if (first_boot) { - arch_send_wakeup_ipi_mask(cpumask_of(cpu)); - first_boot = false; - return 0; - } - - /* Swap the base address mapping between IRAM and IROM */ - writel_relaxed(0x1, matrix_base + BUS_MATRIX_REMAP_CONFIG); - - /* Power on CPU1 */ - writel_relaxed(0x0, pcu_base + PCU_CPU1_CTRL); - - /* Wait for power on ack */ - while (readl_relaxed(pcu_base + PCU_CPU1_ST) & 0x4) - cpu_relax(); - - /* Swap back the mapping of IRAM and IROM */ - writel_relaxed(0x0, matrix_base + BUS_MATRIX_REMAP_CONFIG); - - return 0; -} - -#ifdef CONFIG_HOTPLUG_CPU -static inline void cpu_enter_lowpower(void) -{ - unsigned int v; - - asm volatile( - "mcr p15, 0, %1, c7, c5, 0\n" - " mcr p15, 0, %1, c7, c10, 4\n" - /* - * Turn off coherency - */ - " mrc p15, 0, %0, c1, c0, 1\n" - " bic %0, %0, %3\n" - " mcr p15, 0, %0, c1, c0, 1\n" - " mrc p15, 0, %0, c1, c0, 0\n" - " bic %0, %0, %2\n" - " mcr p15, 0, %0, c1, c0, 0\n" - : "=&r" (v) - : "r" (0), "Ir" (CR_C), "Ir" (0x40) - : "cc"); -} - -static int zx_cpu_kill(unsigned int cpu) -{ - unsigned long timeout = jiffies + msecs_to_jiffies(2000); - - writel_relaxed(0x2, pcu_base + PCU_CPU1_CTRL); - - while ((readl_relaxed(pcu_base + PCU_CPU1_ST) & 0x3) != 0x0) { - if (time_after(jiffies, timeout)) { - pr_err("*** cpu1 poweroff timeout\n"); - break; - } - } - return 1; -} - -static void zx_cpu_die(unsigned int cpu) -{ - scu_power_mode(scu_base, SCU_PM_POWEROFF); - cpu_enter_lowpower(); - - while (1) - cpu_do_idle(); -} -#endif - -static void zx_secondary_init(unsigned int cpu) -{ - scu_power_mode(scu_base, SCU_PM_NORMAL); -} - -static const struct smp_operations zx_smp_ops __initconst = { - .smp_prepare_cpus = zx_smp_prepare_cpus, - .smp_secondary_init = zx_secondary_init, - .smp_boot_secondary = zx_boot_secondary, -#ifdef CONFIG_HOTPLUG_CPU - .cpu_kill = zx_cpu_kill, - .cpu_die = zx_cpu_die, -#endif -}; - -CPU_METHOD_OF_DECLARE(zx_smp, "zte,zx296702-smp", &zx_smp_ops); diff --git a/arch/arm/mach-zx/zx296702-pm-domain.c b/arch/arm/mach-zx/zx296702-pm-domain.c deleted file mode 100644 index 7a08bf9dd792..000000000000 --- a/arch/arm/mach-zx/zx296702-pm-domain.c +++ /dev/null @@ -1,202 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 2015 Linaro Ltd. - * - * Author: Jun Nie <jun.nie@linaro.org> - */ -#include <linux/delay.h> -#include <linux/err.h> -#include <linux/io.h> -#include <linux/of.h> -#include <linux/platform_device.h> -#include <linux/pm_domain.h> -#include <linux/slab.h> - -#define PCU_DM_CLKEN 0x18 -#define PCU_DM_RSTEN 0x1C -#define PCU_DM_ISOEN 0x20 -#define PCU_DM_PWRDN 0x24 -#define PCU_DM_ACK_SYNC 0x28 - -enum { - PCU_DM_NEON0 = 0, - PCU_DM_NEON1, - PCU_DM_GPU, - PCU_DM_DECPPU, - PCU_DM_VOU, - PCU_DM_R2D, - PCU_DM_TOP, -}; - -static void __iomem *pcubase; - -struct zx_pm_domain { - struct generic_pm_domain dm; - unsigned int bit; -}; - -static int normal_power_off(struct generic_pm_domain *domain) -{ - struct zx_pm_domain *zpd = (struct zx_pm_domain *)domain; - unsigned long loop = 1000; - u32 tmp; - - tmp = readl_relaxed(pcubase + PCU_DM_CLKEN); - tmp &= ~BIT(zpd->bit); - writel_relaxed(tmp, pcubase + PCU_DM_CLKEN); - udelay(5); - - tmp = readl_relaxed(pcubase + PCU_DM_ISOEN); - tmp &= ~BIT(zpd->bit); - writel_relaxed(tmp | BIT(zpd->bit), pcubase + PCU_DM_ISOEN); - udelay(5); - - tmp = readl_relaxed(pcubase + PCU_DM_RSTEN); - tmp &= ~BIT(zpd->bit); - writel_relaxed(tmp, pcubase + PCU_DM_RSTEN); - udelay(5); - - tmp = readl_relaxed(pcubase + PCU_DM_PWRDN); - tmp &= ~BIT(zpd->bit); - writel_relaxed(tmp | BIT(zpd->bit), pcubase + PCU_DM_PWRDN); - do { - tmp = readl_relaxed(pcubase + PCU_DM_ACK_SYNC) & BIT(zpd->bit); - } while (--loop && !tmp); - - if (!loop) { - pr_err("Error: %s %s fail\n", __func__, domain->name); - return -EIO; - } - - return 0; -} - -static int normal_power_on(struct generic_pm_domain *domain) -{ - struct zx_pm_domain *zpd = (struct zx_pm_domain *)domain; - unsigned long loop = 10000; - u32 tmp; - - tmp = readl_relaxed(pcubase + PCU_DM_PWRDN); - tmp &= ~BIT(zpd->bit); - writel_relaxed(tmp, pcubase + PCU_DM_PWRDN); - do { - tmp = readl_relaxed(pcubase + PCU_DM_ACK_SYNC) & BIT(zpd->bit); - } while (--loop && tmp); - - if (!loop) { - pr_err("Error: %s %s fail\n", __func__, domain->name); - return -EIO; - } - - tmp = readl_relaxed(pcubase + PCU_DM_RSTEN); - tmp &= ~BIT(zpd->bit); - writel_relaxed(tmp | BIT(zpd->bit), pcubase + PCU_DM_RSTEN); - udelay(5); - - tmp = readl_relaxed(pcubase + PCU_DM_ISOEN); - tmp &= ~BIT(zpd->bit); - writel_relaxed(tmp, pcubase + PCU_DM_ISOEN); - udelay(5); - - tmp = readl_relaxed(pcubase + PCU_DM_CLKEN); - tmp &= ~BIT(zpd->bit); - writel_relaxed(tmp | BIT(zpd->bit), pcubase + PCU_DM_CLKEN); - udelay(5); - return 0; -} - -static struct zx_pm_domain gpu_domain = { - .dm = { - .name = "gpu_domain", - .power_off = normal_power_off, - .power_on = normal_power_on, - }, - .bit = PCU_DM_GPU, -}; - -static struct zx_pm_domain decppu_domain = { - .dm = { - .name = "decppu_domain", - .power_off = normal_power_off, - .power_on = normal_power_on, - }, - .bit = PCU_DM_DECPPU, -}; - -static struct zx_pm_domain vou_domain = { - .dm = { - .name = "vou_domain", - .power_off = normal_power_off, - .power_on = normal_power_on, - }, - .bit = PCU_DM_VOU, -}; - -static struct zx_pm_domain r2d_domain = { - .dm = { - .name = "r2d_domain", - .power_off = normal_power_off, - .power_on = normal_power_on, - }, - .bit = PCU_DM_R2D, -}; - -static struct generic_pm_domain *zx296702_pm_domains[] = { - &vou_domain.dm, - &gpu_domain.dm, - &decppu_domain.dm, - &r2d_domain.dm, -}; - -static int zx296702_pd_probe(struct platform_device *pdev) -{ - struct genpd_onecell_data *genpd_data; - struct resource *res; - int i; - - genpd_data = devm_kzalloc(&pdev->dev, sizeof(*genpd_data), GFP_KERNEL); - if (!genpd_data) - return -ENOMEM; - - genpd_data->domains = zx296702_pm_domains; - genpd_data->num_domains = ARRAY_SIZE(zx296702_pm_domains); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "no memory resource defined\n"); - return -ENODEV; - } - - pcubase = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(pcubase)) { - dev_err(&pdev->dev, "ioremap fail.\n"); - return -EIO; - } - - for (i = 0; i < ARRAY_SIZE(zx296702_pm_domains); ++i) - pm_genpd_init(zx296702_pm_domains[i], NULL, false); - - of_genpd_add_provider_onecell(pdev->dev.of_node, genpd_data); - return 0; -} - -static const struct of_device_id zx296702_pm_domain_matches[] __initconst = { - { .compatible = "zte,zx296702-pcu", }, - { }, -}; - -static struct platform_driver zx296702_pd_driver __initdata = { - .driver = { - .name = "zx-powerdomain", - .owner = THIS_MODULE, - .of_match_table = zx296702_pm_domain_matches, - }, - .probe = zx296702_pd_probe, -}; - -static int __init zx296702_pd_init(void) -{ - return platform_driver_register(&zx296702_pd_driver); -} -subsys_initcall(zx296702_pd_init); diff --git a/arch/arm/mach-zx/zx296702.c b/arch/arm/mach-zx/zx296702.c deleted file mode 100644 index fd8fa3a074fa..000000000000 --- a/arch/arm/mach-zx/zx296702.c +++ /dev/null @@ -1,22 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright 2014 Linaro Ltd. - * Copyright (C) 2014 ZTE Corporation. - */ - -#include <asm/mach/arch.h> -#include <asm/mach/map.h> - -#include <linux/of_address.h> -#include <linux/of_platform.h> - -static const char *const zx296702_dt_compat[] __initconst = { - "zte,zx296702", - NULL, -}; - -DT_MACHINE_START(ZX, "ZTE ZX296702 (Device Tree)") - .dt_compat = zx296702_dt_compat, - .l2c_aux_val = 0, - .l2c_aux_mask = ~0, -MACHINE_END |