From patchwork Tue May 13 09:44:38 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Haojian Zhuang X-Patchwork-Id: 4164481 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id BE595C0ACC for ; Tue, 13 May 2014 09:49:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A16F920218 for ; Tue, 13 May 2014 09:49:29 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3E36D20306 for ; Tue, 13 May 2014 09:49:28 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Wk9Hg-0001jv-6E; Tue, 13 May 2014 09:46:04 +0000 Received: from mail-pa0-f49.google.com ([209.85.220.49]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Wk9Hc-0001Tb-1Y for linux-arm-kernel@lists.infradead.org; Tue, 13 May 2014 09:46:01 +0000 Received: by mail-pa0-f49.google.com with SMTP id lj1so79677pab.36 for ; Tue, 13 May 2014 02:45:39 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=H2tGVCNOMidoDGa2t5fHW8h8lXGRZmE6zs5ZlH3AaV4=; b=adWvT56TTIHP0/AOIONCYWV8MbHMd3ozddZ1Ru2YmRYblGiz7tZqkQNzfMXoNW9ImC xrnYMsQDNGbLGFOPLtNvbt63CFvqdDRf3zRM3vctNtZIBFf3Eg+2NJ4ZzChi7akPBWRP p2wfV0qmz7iARQS7XxNV99CtSGCsSKzHhBc8dJT/YIuf1ZNPikiCGdfXZ+OcypfAXI8+ JQ6pd7jhUDHS9cHmR1mHRcjSQnHJKXrohoG0xBX/6tL63S3o9bESMsFsw20kMyvPZPCv ADPqIqnsssspXfAY7EcrtB6njxlzEO4C/Qp0O/GJdEetoHcUmhx+A/6o2bEukadDe+fW 06xQ== X-Gm-Message-State: ALoCoQmDLNsU/8NMdfbc27ci6GAetlzgxcrzf//u7Vnu7zHshsO/hsl5Dn7VsvAjAwBeOl+bIKJ1 X-Received: by 10.68.110.129 with SMTP id ia1mr3926256pbb.158.1399974338947; Tue, 13 May 2014 02:45:38 -0700 (PDT) Received: from localhost.localdomain ([140.206.182.114]) by mx.google.com with ESMTPSA id kj1sm27294335pbd.20.2014.05.13.02.45.30 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 13 May 2014 02:45:37 -0700 (PDT) From: Haojian Zhuang To: yanhaifeng@gmail.com, xuwei5@hisilicon.com, arnd@arndb.de, olof@lixom.net, linux-arm-kernel@lists.infradead.org, khilman@kernel.org, jchxue@gmail.com Subject: [PATCH v2 3/6] ARM: hisi: enable hix5hd2 SoC Date: Tue, 13 May 2014 17:44:38 +0800 Message-Id: <1399974281-9737-4-git-send-email-haojian.zhuang@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1399974281-9737-1-git-send-email-haojian.zhuang@linaro.org> References: <1399974281-9737-1-git-send-email-haojian.zhuang@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140513_024600_166093_F2B2484F X-CRM114-Status: GOOD ( 22.20 ) X-Spam-Score: -0.7 (/) Cc: Haojian Zhuang X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Haifeng Yan Enable Hisilicon HiX5HD2 SoC. This HiX5HD2 SoC series support both one core or dual cores. The core is Cortex A9. Signed-off-by: Haifeng Yan Signed-off-by: Jiancheng Xue Signed-off-by: Haojian Zhuang --- arch/arm/mach-hisi/Kconfig | 13 ++++++++-- arch/arm/mach-hisi/Makefile | 1 + arch/arm/mach-hisi/core.h | 5 ++++ arch/arm/mach-hisi/headsmp.S | 36 ++++++++++++++++++++++++++ arch/arm/mach-hisi/hisilicon.c | 14 ++++++++++ arch/arm/mach-hisi/hotplug.c | 58 ++++++++++++++++++++++++++++++++++++++++++ arch/arm/mach-hisi/platsmp.c | 50 +++++++++++++++++++++++++++++++++--- 7 files changed, 172 insertions(+), 5 deletions(-) create mode 100644 arch/arm/mach-hisi/headsmp.S diff --git a/arch/arm/mach-hisi/Kconfig b/arch/arm/mach-hisi/Kconfig index 0a5a49d..94b7ff1 100644 --- a/arch/arm/mach-hisi/Kconfig +++ b/arch/arm/mach-hisi/Kconfig @@ -10,14 +10,14 @@ if ARCH_HISI menu "Hisilicon platform type" config ARCH_HI3xxx - bool "Hisilicon Hi36xx/Hi37xx family" if ARCH_MULTI_V7 + bool "Hisilicon Hi36xx family" if ARCH_MULTI_V7 select CACHE_L2X0 select HAVE_ARM_SCU if SMP select HAVE_ARM_TWD if SMP select PINCTRL select PINCTRL_SINGLE help - Support for Hisilicon Hi36xx/Hi37xx SoC family + Support for Hisilicon Hi36xx SoC family config ARCH_HIP04 bool "Hisilicon HiP04 Cortex A15 family" if ARCH_MULTI_V7 @@ -28,6 +28,15 @@ config ARCH_HIP04 help Support for Hisilicon HiP04 SoC family +config ARCH_HIX5HD2 + bool "Hisilicon X5HD2 family" if ARCH_MULTI_V7 + select CACHE_L2X0 + select HAVE_ARM_SCU if SMP + select HAVE_ARM_TWD if SMP + select PINCTRL + select PINCTRL_SINGLE + help + Support for Hisilicon X5HD2 SoC family endmenu endif diff --git a/arch/arm/mach-hisi/Makefile b/arch/arm/mach-hisi/Makefile index e7a8640..428daf6 100644 --- a/arch/arm/mach-hisi/Makefile +++ b/arch/arm/mach-hisi/Makefile @@ -3,5 +3,6 @@ # obj-y += hisilicon.o +obj-$(CONFIG_ARCH_HIX5HD2) += headsmp.o obj-$(CONFIG_MCPM) += platmcpm.o obj-$(CONFIG_SMP) += platsmp.o hotplug.o diff --git a/arch/arm/mach-hisi/core.h b/arch/arm/mach-hisi/core.h index 1e60795..5d19ebe 100644 --- a/arch/arm/mach-hisi/core.h +++ b/arch/arm/mach-hisi/core.h @@ -14,4 +14,9 @@ extern void hi3xxx_set_cpu(int cpu, bool enable); extern bool __init hip04_smp_init_ops(void); +extern void hix5hd2_secondary_startup(void); +extern struct smp_operations hix5hd2_smp_ops; +extern void hix5hd2_set_cpu(int cpu, bool enable); +extern void hix5hd2_cpu_die(unsigned int cpu); + #endif diff --git a/arch/arm/mach-hisi/headsmp.S b/arch/arm/mach-hisi/headsmp.S new file mode 100644 index 0000000..7947e91 --- /dev/null +++ b/arch/arm/mach-hisi/headsmp.S @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2014 Hisilicon Limited. + * Copyright (c) 2014 Linaro Ltd. + * + * 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. + */ +#include +#include + + __CPUINIT + +ENTRY(hix5hd2_secondary_startup) + + /* set the cpu to SVC32 mode */ + mrs r0, cpsr + bic r0, r0, #0x1f /* r0 = ((~0x1F) & r0) */ + orr r0, r0, #0xd3 /* r0 = (0xd3 | r0) */ + msr cpsr, r0 + + /* disable MMU stuff and caches */ + mrc p15, 0, r0, c1, c0, 0 + orr r0, r0, #0x00002000 /* clear bits 13 (--V-) */ + bic r0, r0, #0x00000007 /* clear bits 2:0 (-CAM) */ + orr r0, r0, #0x00000002 /* set bit 1 (--A-) Align */ + orr r0, r0, #0x00000800 /* set bit 12 (Z---) BTB */ + mcr p15, 0, r0, c1, c0, 0 + + /* + * Invalidate L1 I/D + */ + mcr p15, 0, r0, c8, c7, 0 /* invalidate TLBs */ + mcr p15, 0, r0, c7, c5, 0 /* invalidate icache */ + bl v7_invalidate_l1 + b secondary_startup diff --git a/arch/arm/mach-hisi/hisilicon.c b/arch/arm/mach-hisi/hisilicon.c index a476388..8255ce6 100644 --- a/arch/arm/mach-hisi/hisilicon.c +++ b/arch/arm/mach-hisi/hisilicon.c @@ -26,6 +26,8 @@ #define HI3620_SYSCTRL_PHYS_BASE 0xfc802000 #define HI3620_SYSCTRL_VIRT_BASE 0xfe802000 +#define HIX5HD2_SYSCTRL_PHYS_BASE 0xf8000000 +#define HIX5HD2_SYSCTRL_VIRT_BASE 0xfe802000 /* * This table is only for optimization. Since ioremap() could always share @@ -106,3 +108,15 @@ DT_MACHINE_START(HIP04, "Hisilicon HiP04 (Flattened Device Tree)") .smp_init = smp_init_ops(hip04_smp_init_ops), MACHINE_END #endif + +static const char *hix5hd2_compat[] __initconst = { + "hisilicon,hix5hd2", + NULL, +}; + +DT_MACHINE_START(HIX5HD2_DT, "Hisilicon X5HD2 (Flattened Device Tree)") + .dt_compat = hix5hd2_compat, + .init_late = hi3xxx_init_late, + .smp = smp_ops(hix5hd2_smp_ops), + .restart = hi3xxx_restart, +MACHINE_END diff --git a/arch/arm/mach-hisi/hotplug.c b/arch/arm/mach-hisi/hotplug.c index abd441b..84e6919 100644 --- a/arch/arm/mach-hisi/hotplug.c +++ b/arch/arm/mach-hisi/hotplug.c @@ -57,6 +57,14 @@ #define CPU0_NEON_SRST_REQ_EN (1 << 4) #define CPU0_SRST_REQ_EN (1 << 0) +#define HIX5HD2_PERI_CRG20 0x50 +#define CRG20_CPU1_RESET (1 << 17) + +#define HIX5HD2_PERI_PMC0 0x1000 +#define PMC0_CPU1_WAIT_MTCOMS_ACK (1 << 8) +#define PMC0_CPU1_PMC_ENABLE (1 << 7) +#define PMC0_CPU1_POWERDOWN (1 << 3) + enum { HI3620_CTRL, ERROR_CTRL, @@ -157,6 +165,50 @@ void hi3xxx_set_cpu(int cpu, bool enable) set_cpu_hi3620(cpu, enable); } +static bool hix5hd2_hotplug_init(void) +{ + struct device_node *np; + + np = of_find_compatible_node(NULL, NULL, "hisilicon,cpuctrl"); + if (np) { + ctrl_base = of_iomap(np, 0); + return true; + } + return false; +} + +void hix5hd2_set_cpu(int cpu, bool enable) +{ + u32 val = 0; + + if (!ctrl_base) + if (!hix5hd2_hotplug_init()) + BUG(); + + if (enable) { + /* power on cpu1 */ + val = readl_relaxed(ctrl_base + HIX5HD2_PERI_PMC0); + val &= ~(PMC0_CPU1_WAIT_MTCOMS_ACK | PMC0_CPU1_POWERDOWN); + val |= PMC0_CPU1_PMC_ENABLE; + writel_relaxed(val, ctrl_base + HIX5HD2_PERI_PMC0); + /* unreset */ + val = readl_relaxed(ctrl_base + HIX5HD2_PERI_CRG20); + val &= ~CRG20_CPU1_RESET; + writel_relaxed(val, ctrl_base + HIX5HD2_PERI_CRG20); + } else { + /* power down cpu1 */ + val = readl_relaxed(ctrl_base + HIX5HD2_PERI_PMC0); + val |= PMC0_CPU1_PMC_ENABLE | PMC0_CPU1_POWERDOWN; + val &= ~PMC0_CPU1_WAIT_MTCOMS_ACK; + writel_relaxed(val, ctrl_base + HIX5HD2_PERI_PMC0); + + /* reset */ + val = readl_relaxed(ctrl_base + HIX5HD2_PERI_CRG20); + val |= CRG20_CPU1_RESET; + writel_relaxed(val, ctrl_base + HIX5HD2_PERI_CRG20); + } +} + static inline void cpu_enter_lowpower(void) { unsigned int v; @@ -199,4 +251,10 @@ int hi3xxx_cpu_kill(unsigned int cpu) hi3xxx_set_cpu(cpu, false); return 1; } + +void hix5hd2_cpu_die(unsigned int cpu) +{ + flush_cache_all(); + hix5hd2_set_cpu(cpu, false); +} #endif diff --git a/arch/arm/mach-hisi/platsmp.c b/arch/arm/mach-hisi/platsmp.c index 471f1ee..ecf7058 100644 --- a/arch/arm/mach-hisi/platsmp.c +++ b/arch/arm/mach-hisi/platsmp.c @@ -17,6 +17,8 @@ #include "core.h" +#define HIX5HD2_BOOT_ADDRESS 0xffff0000 + static void __iomem *ctrl_base; void hi3xxx_set_cpu_jump(int cpu, void *jump_addr) @@ -35,11 +37,9 @@ int hi3xxx_get_cpu_jump(int cpu) return readl_relaxed(ctrl_base + ((cpu - 1) << 2)); } -static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus) +static void __init hisi_enable_scu_a9(void) { - struct device_node *np = NULL; unsigned long base = 0; - u32 offset = 0; void __iomem *scu_base = NULL; if (scu_a9_has_base()) { @@ -52,6 +52,14 @@ static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus) scu_enable(scu_base); iounmap(scu_base); } +} + +static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus) +{ + struct device_node *np = NULL; + u32 offset = 0; + + hisi_enable_scu_a9(); if (!ctrl_base) { np = of_find_compatible_node(NULL, NULL, "hisilicon,sysctrl"); if (!np) { @@ -87,3 +95,39 @@ struct smp_operations hi3xxx_smp_ops __initdata = { .cpu_kill = hi3xxx_cpu_kill, #endif }; + +static void __init hix5hd2_smp_prepare_cpus(unsigned int max_cpus) +{ + hisi_enable_scu_a9(); +} + +void hix5hd2_set_scu_boot_addr(phys_addr_t start_addr, phys_addr_t jump_addr) +{ + void __iomem *virt; + + virt = ioremap(start_addr, PAGE_SIZE); + + writel_relaxed(0xe51ff004, virt); /* ldr pc, [rc, #-4] */ + writel_relaxed(jump_addr, virt + 4); /* pc jump phy address */ + iounmap(virt); +} + +static int hix5hd2_boot_secondary(unsigned int cpu, struct task_struct *idle) +{ + phys_addr_t jumpaddr; + + jumpaddr = virt_to_phys(hix5hd2_secondary_startup); + hix5hd2_set_scu_boot_addr(HIX5HD2_BOOT_ADDRESS, jumpaddr); + hix5hd2_set_cpu(cpu, true); + arch_send_wakeup_ipi_mask(cpumask_of(cpu)); + return 0; +} + + +struct smp_operations hix5hd2_smp_ops __initdata = { + .smp_prepare_cpus = hix5hd2_smp_prepare_cpus, + .smp_boot_secondary = hix5hd2_boot_secondary, +#ifdef CONFIG_HOTPLUG_CPU + .cpu_die = hix5hd2_cpu_die, +#endif +};