diff options
Diffstat (limited to 'arch/arm/mach-msm')
| -rw-r--r-- | arch/arm/mach-msm/Kconfig | 45 | ||||
| -rw-r--r-- | arch/arm/mach-msm/Makefile | 6 | ||||
| -rw-r--r-- | arch/arm/mach-msm/board-dt.c | 41 | ||||
| -rw-r--r-- | arch/arm/mach-msm/platsmp.c | 137 | ||||
| -rw-r--r-- | arch/arm/mach-msm/scm-boot.c | 39 | ||||
| -rw-r--r-- | arch/arm/mach-msm/scm-boot.h | 22 | ||||
| -rw-r--r-- | arch/arm/mach-msm/scm.c | 299 | ||||
| -rw-r--r-- | arch/arm/mach-msm/scm.h | 25 |
8 files changed, 2 insertions, 612 deletions
diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig index 3c4eca71f97..a7f959e58c3 100644 --- a/arch/arm/mach-msm/Kconfig +++ b/arch/arm/mach-msm/Kconfig @@ -1,50 +1,9 @@ -config ARCH_MSM - bool - -config ARCH_MSM_DT - bool "Qualcomm MSM DT Support" if ARCH_MULTI_V7 - select ARCH_MSM - select ARCH_REQUIRE_GPIOLIB - select CLKSRC_OF - select GENERIC_CLOCKEVENTS - help - Support for Qualcomm's devicetree based MSM systems. - if ARCH_MSM -menu "Qualcomm MSM SoC Selection" - depends on ARCH_MSM_DT - -config ARCH_MSM8X60 - bool "Enable support for MSM8X60" - select ARM_GIC - select CPU_V7 - select HAVE_SMP - select MSM_SCM if SMP - select CLKSRC_QCOM - -config ARCH_MSM8960 - bool "Enable support for MSM8960" - select ARM_GIC - select CPU_V7 - select HAVE_SMP - select MSM_SCM if SMP - select CLKSRC_QCOM - -config ARCH_MSM8974 - bool "Enable support for MSM8974" - select ARM_GIC - select CPU_V7 - select HAVE_ARM_ARCH_TIMER - select HAVE_SMP - select MSM_SCM if SMP - -endmenu - choice prompt "Qualcomm MSM SoC Type" default ARCH_MSM7X00A - depends on ARCH_MSM_NODT + depends on ARCH_MSM config ARCH_MSM7X00A bool "MSM7x00A / MSM7x01A" @@ -99,7 +58,7 @@ config MSM_VIC bool menu "Qualcomm MSM Board Type" - depends on ARCH_MSM_NODT + depends on ARCH_MSM config MACH_HALIBUT depends on ARCH_MSM diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile index 04b1bee941f..27c078a568d 100644 --- a/arch/arm/mach-msm/Makefile +++ b/arch/arm/mach-msm/Makefile @@ -13,17 +13,11 @@ obj-$(CONFIG_ARCH_QSD8X50) += dma.o io.o obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o obj-$(CONFIG_MSM_SMD) += last_radio_log.o -obj-$(CONFIG_MSM_SCM) += scm.o scm-boot.o - -CFLAGS_scm.o :=$(call as-instr,.arch_extension sec,-DREQUIRES_SEC=1) - -obj-$(CONFIG_SMP) += platsmp.o obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o board-trout-mmc.o devices-msm7x00.o obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o board-trout-mmc.o board-trout-panel.o devices-msm7x00.o obj-$(CONFIG_MACH_HALIBUT) += board-halibut.o devices-msm7x00.o obj-$(CONFIG_ARCH_MSM7X30) += board-msm7x30.o devices-msm7x30.o obj-$(CONFIG_ARCH_QSD8X50) += board-qsd8x50.o devices-qsd8x50.o -obj-$(CONFIG_ARCH_MSM_DT) += board-dt.o obj-$(CONFIG_MSM_GPIOMUX) += gpiomux.o obj-$(CONFIG_ARCH_QSD8X50) += gpiomux-8x50.o diff --git a/arch/arm/mach-msm/board-dt.c b/arch/arm/mach-msm/board-dt.c deleted file mode 100644 index 1f11d93e700..00000000000 --- a/arch/arm/mach-msm/board-dt.c +++ /dev/null @@ -1,41 +0,0 @@ -/* Copyright (c) 2010-2012,2013 The Linux Foundation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that 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. - */ - -#include <linux/init.h> -#include <linux/of.h> -#include <linux/of_platform.h> - -#include <asm/mach/arch.h> -#include <asm/mach/map.h> - -#include "common.h" - -static const char * const msm_dt_match[] __initconst = { - "qcom,msm8660-fluid", - "qcom,msm8660-surf", - "qcom,msm8960-cdp", - NULL -}; - -static const char * const apq8074_dt_match[] __initconst = { - "qcom,apq8074-dragonboard", - NULL -}; - -DT_MACHINE_START(MSM_DT, "Qualcomm MSM (Flattened Device Tree)") - .smp = smp_ops(msm_smp_ops), - .dt_compat = msm_dt_match, -MACHINE_END - -DT_MACHINE_START(APQ_DT, "Qualcomm MSM (Flattened Device Tree)") - .dt_compat = apq8074_dt_match, -MACHINE_END diff --git a/arch/arm/mach-msm/platsmp.c b/arch/arm/mach-msm/platsmp.c deleted file mode 100644 index 251a91eb102..00000000000 --- a/arch/arm/mach-msm/platsmp.c +++ /dev/null @@ -1,137 +0,0 @@ -/* - * Copyright (C) 2002 ARM Ltd. - * All Rights Reserved - * Copyright (c) 2010, Code Aurora Forum. All rights reserved. - * - * 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 <linux/init.h> -#include <linux/errno.h> -#include <linux/delay.h> -#include <linux/device.h> -#include <linux/smp.h> -#include <linux/io.h> - -#include <asm/cputype.h> -#include <asm/smp_plat.h> - -#include "scm-boot.h" -#include "common.h" - -#define VDD_SC1_ARRAY_CLAMP_GFS_CTL 0x15A0 -#define SCSS_CPU1CORE_RESET 0xD80 -#define SCSS_DBG_STATUS_CORE_PWRDUP 0xE64 - -extern void secondary_startup(void); - -static DEFINE_SPINLOCK(boot_lock); - -#ifdef CONFIG_HOTPLUG_CPU -static void __ref msm_cpu_die(unsigned int cpu) -{ - wfi(); -} -#endif - -static inline int get_core_count(void) -{ - /* 1 + the PART[1:0] field of MIDR */ - return ((read_cpuid_id() >> 4) & 3) + 1; -} - -static void msm_secondary_init(unsigned int cpu) -{ - /* - * Synchronise with the boot thread. - */ - spin_lock(&boot_lock); - spin_unlock(&boot_lock); -} - -static void prepare_cold_cpu(unsigned int cpu) -{ - int ret; - ret = scm_set_boot_addr(virt_to_phys(secondary_startup), - SCM_FLAG_COLDBOOT_CPU1); - if (ret == 0) { - void __iomem *sc1_base_ptr; - sc1_base_ptr = ioremap_nocache(0x00902000, SZ_4K*2); - if (sc1_base_ptr) { - writel(0, sc1_base_ptr + VDD_SC1_ARRAY_CLAMP_GFS_CTL); - writel(0, sc1_base_ptr + SCSS_CPU1CORE_RESET); - writel(3, sc1_base_ptr + SCSS_DBG_STATUS_CORE_PWRDUP); - iounmap(sc1_base_ptr); - } - } else - printk(KERN_DEBUG "Failed to set secondary core boot " - "address\n"); -} - -static int msm_boot_secondary(unsigned int cpu, struct task_struct *idle) -{ - static int cold_boot_done; - - /* Only need to bring cpu out of reset this way once */ - if (cold_boot_done == false) { - prepare_cold_cpu(cpu); - cold_boot_done = true; - } - - /* - * set synchronisation state between this boot processor - * and the secondary one - */ - spin_lock(&boot_lock); - - /* - * Send the secondary CPU a soft interrupt, thereby causing - * the boot monitor to read the system wide flags register, - * and branch to the address found there. - */ - arch_send_wakeup_ipi_mask(cpumask_of(cpu)); - - /* - * now the secondary core is starting up let it run its - * calibrations, then wait for it to finish - */ - spin_unlock(&boot_lock); - - return 0; -} - -/* - * Initialise the CPU possible map early - this describes the CPUs - * which may be present or become present in the system. The msm8x60 - * does not support the ARM SCU, so just set the possible cpu mask to - * NR_CPUS. - */ -static void __init msm_smp_init_cpus(void) -{ - unsigned int i, ncores = get_core_count(); - - if (ncores > nr_cpu_ids) { - pr_warn("SMP: %u cores greater than maximum (%u), clipping\n", - ncores, nr_cpu_ids); - ncores = nr_cpu_ids; - } - - for (i = 0; i < ncores; i++) - set_cpu_possible(i, true); -} - -static void __init msm_smp_prepare_cpus(unsigned int max_cpus) -{ -} - -struct smp_operations msm_smp_ops __initdata = { - .smp_init_cpus = msm_smp_init_cpus, - .smp_prepare_cpus = msm_smp_prepare_cpus, - .smp_secondary_init = msm_secondary_init, - .smp_boot_secondary = msm_boot_secondary, -#ifdef CONFIG_HOTPLUG_CPU - .cpu_die = msm_cpu_die, -#endif -}; diff --git a/arch/arm/mach-msm/scm-boot.c b/arch/arm/mach-msm/scm-boot.c deleted file mode 100644 index 45cee3e469a..00000000000 --- a/arch/arm/mach-msm/scm-boot.c +++ /dev/null @@ -1,39 +0,0 @@ -/* Copyright (c) 2010, Code Aurora Forum. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that 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, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -#include <linux/module.h> -#include <linux/slab.h> - -#include "scm.h" -#include "scm-boot.h" - -/* - * Set the cold/warm boot address for one of the CPU cores. - */ -int scm_set_boot_addr(phys_addr_t addr, int flags) -{ - struct { - unsigned int flags; - phys_addr_t addr; - } cmd; - - cmd.addr = addr; - cmd.flags = flags; - return scm_call(SCM_SVC_BOOT, SCM_BOOT_ADDR, - &cmd, sizeof(cmd), NULL, 0); -} -EXPORT_SYMBOL(scm_set_boot_addr); diff --git a/arch/arm/mach-msm/scm-boot.h b/arch/arm/mach-msm/scm-boot.h deleted file mode 100644 index 7be32ff5d68..00000000000 --- a/arch/arm/mach-msm/scm-boot.h +++ /dev/null @@ -1,22 +0,0 @@ -/* Copyright (c) 2010, Code Aurora Forum. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that 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. - */ -#ifndef __MACH_SCM_BOOT_H -#define __MACH_SCM_BOOT_H - -#define SCM_BOOT_ADDR 0x1 -#define SCM_FLAG_COLDBOOT_CPU1 0x1 -#define SCM_FLAG_WARMBOOT_CPU1 0x2 -#define SCM_FLAG_WARMBOOT_CPU0 0x4 - -int scm_set_boot_addr(phys_addr_t addr, int flags); - -#endif diff --git a/arch/arm/mach-msm/scm.c b/arch/arm/mach-msm/scm.c deleted file mode 100644 index c536fd6bf82..00000000000 --- a/arch/arm/mach-msm/scm.c +++ /dev/null @@ -1,299 +0,0 @@ -/* Copyright (c) 2010, Code Aurora Forum. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that 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, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -#include <linux/slab.h> -#include <linux/io.h> -#include <linux/module.h> -#include <linux/mutex.h> -#include <linux/errno.h> -#include <linux/err.h> - -#include <asm/cacheflush.h> - -#include "scm.h" - -/* Cache line size for msm8x60 */ -#define CACHELINESIZE 32 - -#define SCM_ENOMEM -5 -#define SCM_EOPNOTSUPP -4 -#define SCM_EINVAL_ADDR -3 -#define SCM_EINVAL_ARG -2 -#define SCM_ERROR -1 -#define SCM_INTERRUPTED 1 - -static DEFINE_MUTEX(scm_lock); - -/** - * struct scm_command - one SCM command buffer - * @len: total available memory for command and response - * @buf_offset: start of command buffer - * @resp_hdr_offset: start of response buffer - * @id: command to be executed - * @buf: buffer returned from scm_get_command_buffer() - * - * An SCM command is laid out in memory as follows: - * - * ------------------- <--- struct scm_command - * | command header | - * ------------------- <--- scm_get_command_buffer() - * | command buffer | - * ------------------- <--- struct scm_response and - * | response header | scm_command_to_response() - * ------------------- <--- scm_get_response_buffer() - * | response buffer | - * ------------------- - * - * There can be arbitrary padding between the headers and buffers so - * you should always use the appropriate scm_get_*_buffer() routines - * to access the buffers in a safe manner. - */ -struct scm_command { - u32 len; - u32 buf_offset; - u32 resp_hdr_offset; - u32 id; - u32 buf[0]; -}; - -/** - * struct scm_response - one SCM response buffer - * @len: total available memory for response - * @buf_offset: start of response data relative to start of scm_response - * @is_complete: indicates if the command has finished processing - */ -struct scm_response { - u32 len; - u32 buf_offset; - u32 is_complete; -}; - -/** - * alloc_scm_command() - Allocate an SCM command - * @cmd_size: size of the command buffer - * @resp_size: size of the response buffer - * - * Allocate an SCM command, including enough room for the command - * and response headers as well as the command and response buffers. - * - * Returns a valid &scm_command on success or %NULL if the allocation fails. - */ -static struct scm_command *alloc_scm_command(size_t cmd_size, size_t resp_size) -{ - struct scm_command *cmd; - size_t len = sizeof(*cmd) + sizeof(struct scm_response) + cmd_size + - resp_size; - - cmd = kzalloc(PAGE_ALIGN(len), GFP_KERNEL); - if (cmd) { - cmd->len = len; - cmd->buf_offset = offsetof(struct scm_command, buf); - cmd->resp_hdr_offset = cmd->buf_offset + cmd_size; - } - return cmd; -} - -/** - * free_scm_command() - Free an SCM command - * @cmd: command to free - * - * Free an SCM command. - */ -static inline void free_scm_command(struct scm_command *cmd) -{ - kfree(cmd); -} - -/** - * scm_command_to_response() - Get a pointer to a scm_response - * @cmd: command - * - * Returns a pointer to a response for a command. - */ -static inline struct scm_response *scm_command_to_response( - const struct scm_command *cmd) -{ - return (void *)cmd + cmd->resp_hdr_offset; -} - -/** - * scm_get_command_buffer() - Get a pointer to a command buffer - * @cmd: command - * - * Returns a pointer to the command buffer of a command. - */ -static inline void *scm_get_command_buffer(const struct scm_command *cmd) -{ - return (void *)cmd->buf; -} - -/** - * scm_get_response_buffer() - Get a pointer to a response buffer - * @rsp: response - * - * Returns a pointer to a response buffer of a response. - */ -static inline void *scm_get_response_buffer(const struct scm_response *rsp) -{ - return (void *)rsp + rsp->buf_offset; -} - -static int scm_remap_error(int err) -{ - switch (err) { - case SCM_ERROR: - return -EIO; - case SCM_EINVAL_ADDR: - case SCM_EINVAL_ARG: - return -EINVAL; - case SCM_EOPNOTSUPP: - return -EOPNOTSUPP; - case SCM_ENOMEM: - return -ENOMEM; - } - return -EINVAL; -} - -static u32 smc(u32 cmd_addr) -{ - int context_id; - register u32 r0 asm("r0") = 1; - register u32 r1 asm("r1") = (u32)&context_id; - register u32 r2 asm("r2") = cmd_addr; - do { - asm volatile( - __asmeq("%0", "r0") - __asmeq("%1", "r0") - __asmeq("%2", "r1") - __asmeq("%3", "r2") -#ifdef REQUIRES_SEC - ".arch_extension sec\n" -#endif - "smc #0 @ switch to secure world\n" - : "=r" (r0) - : "r" (r0), "r" (r1), "r" (r2) - : "r3"); - } while (r0 == SCM_INTERRUPTED); - - return r0; -} - -static int __scm_call(const struct scm_command *cmd) -{ - int ret; - u32 cmd_addr = virt_to_phys(cmd); - - /* - * Flush the entire cache here so callers don't have to remember - * to flush the cache when passing physical addresses to the secure - * side in the buffer. - */ - flush_cache_all(); - ret = smc(cmd_addr); - if (ret < 0) - ret = scm_remap_error(ret); - - return ret; -} - -/** - * scm_call() - Send an SCM command - * @svc_id: service identifier - * @cmd_id: command identifier - * @cmd_buf: command buffer - * @cmd_len: length of the command buffer - * @resp_buf: response buffer - * @resp_len: length of the response buffer - * - * Sends a command to the SCM and waits for the command to finish processing. - */ -int scm_call(u32 svc_id, u32 cmd_id, const void *cmd_buf, size_t cmd_len, - void *resp_buf, size_t resp_len) -{ - int ret; - struct scm_command *cmd; - struct scm_response *rsp; - - cmd = alloc_scm_command(cmd_len, resp_len); - if (!cmd) - return -ENOMEM; - - cmd->id = (svc_id << 10) | cmd_id; - if (cmd_buf) - memcpy(scm_get_command_buffer(cmd), cmd_buf, cmd_len); - - mutex_lock(&scm_lock); - ret = __scm_call(cmd); - mutex_unlock(&scm_lock); - if (ret) - goto out; - - rsp = scm_command_to_response(cmd); - do { - u32 start = (u32)rsp; - u32 end = (u32)scm_get_response_buffer(rsp) + resp_len; - start &= ~(CACHELINESIZE - 1); - while (start < end) { - asm ("mcr p15, 0, %0, c7, c6, 1" : : "r" (start) - : "memory"); - start += CACHELINESIZE; - } - } while (!rsp->is_complete); - - if (resp_buf) - memcpy(resp_buf, scm_get_response_buffer(rsp), resp_len); -out: - free_scm_command(cmd); - return ret; -} -EXPORT_SYMBOL(scm_call); - -u32 scm_get_version(void) -{ - int context_id; - static u32 version = -1; - register u32 r0 asm("r0"); - register u32 r1 asm("r1"); - - if (version != -1) - return version; - - mutex_lock(&scm_lock); - - r0 = 0x1 << 8; - r1 = (u32)&context_id; - do { - asm volatile( - __asmeq("%0", "r0") - __asmeq("%1", "r1") - __asmeq("%2", "r0") - __asmeq("%3", "r1") -#ifdef REQUIRES_SEC - ".arch_extension sec\n" -#endif - "smc #0 @ switch to secure world\n" - : "=r" (r0), "=r" (r1) - : "r" (r0), "r" (r1) - : "r2", "r3"); - } while (r0 == SCM_INTERRUPTED); - - version = r1; - mutex_unlock(&scm_lock); - - return version; -} -EXPORT_SYMBOL(scm_get_version); diff --git a/arch/arm/mach-msm/scm.h b/arch/arm/mach-msm/scm.h deleted file mode 100644 index 00b31ea58f2..00000000000 --- a/arch/arm/mach-msm/scm.h +++ /dev/null @@ -1,25 +0,0 @@ -/* Copyright (c) 2010, Code Aurora Forum. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that 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. - */ -#ifndef __MACH_SCM_H -#define __MACH_SCM_H - -#define SCM_SVC_BOOT 0x1 -#define SCM_SVC_PIL 0x2 - -extern int scm_call(u32 svc_id, u32 cmd_id, const void *cmd_buf, size_t cmd_len, - void *resp_buf, size_t resp_len); - -#define SCM_VERSION(major, minor) (((major) << 16) | ((minor) & 0xFF)) - -extern u32 scm_get_version(void); - -#endif |