diff options
Diffstat (limited to 'arch/arm/mach-msm/socinfo.c')
| -rw-r--r-- | arch/arm/mach-msm/socinfo.c | 430 |
1 files changed, 430 insertions, 0 deletions
diff --git a/arch/arm/mach-msm/socinfo.c b/arch/arm/mach-msm/socinfo.c new file mode 100644 index 000000000000..0c65e25c9c66 --- /dev/null +++ b/arch/arm/mach-msm/socinfo.c @@ -0,0 +1,430 @@ +/* Copyright (c) 2009, Code Aurora Forum. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Code Aurora Forum nor + * the names of its contributors may be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * Alternatively, provided that this notice is retained in full, this software + * may be relicensed by the recipient under the terms of the GNU General Public + * License version 2 ("GPL") and only version 2, in which case the provisions of + * the GPL apply INSTEAD OF those given above. If the recipient relicenses the + * software under the GPL, then the identification text in the MODULE_LICENSE + * macro must be changed to reflect "GPLv2" instead of "Dual BSD/GPL". Once a + * recipient changes the license terms to the GPL, subsequent recipients shall + * not relicense under alternate licensing terms, including the BSD or dual + * BSD/GPL terms. In addition, the following license statement immediately + * below and between the words START and END shall also then apply when this + * software is relicensed under the GPL: + * + * START + * + * 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. + * + * END + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + */ +/* + * SOC Info Routines + * + */ + +#include <linux/types.h> +#include <linux/sysdev.h> +#include "socinfo.h" +#include "smd_private.h" + +enum { + HW_PLATFORM_UNKNOWN = 0, + HW_PLATFORM_SURF = 1, + HW_PLATFORM_FFA = 2, + HW_PLATFORM_FLUID = 3, + HW_PLATFORM_INVALID +}; + +char *hw_platform[] = { + "Unknown", + "Surf", + "FFA", + "Fluid" +}; + +/* Used to parse shared memory. Must match the modem. */ +struct socinfo_v1 { + uint32_t format; + uint32_t id; + uint32_t version; + char build_id[32]; +}; + +struct socinfo_v2 { + struct socinfo_v1 v1; + + /* only valid when format==2 */ + uint32_t raw_id; + uint32_t raw_version; +}; + +struct socinfo_v3 { + struct socinfo_v2 v2; + + /* only valid when format==3 */ + uint32_t hw_platform; +}; + +static union { + struct socinfo_v1 v1; + struct socinfo_v2 v2; + struct socinfo_v3 v3; +} *socinfo; + +static enum msm_cpu cpu_of_id[] = { + + /* 7x01 IDs */ + [1] = MSM_CPU_7X01, + [16] = MSM_CPU_7X01, + [17] = MSM_CPU_7X01, + [18] = MSM_CPU_7X01, + [19] = MSM_CPU_7X01, + [23] = MSM_CPU_7X01, + [25] = MSM_CPU_7X01, + [26] = MSM_CPU_7X01, + [32] = MSM_CPU_7X01, + [33] = MSM_CPU_7X01, + [34] = MSM_CPU_7X01, + [35] = MSM_CPU_7X01, + + /* 7x25 IDs */ + [20] = MSM_CPU_7X25, + [21] = MSM_CPU_7X25, + [24] = MSM_CPU_7X25, + [27] = MSM_CPU_7X25, + [39] = MSM_CPU_7X25, + [40] = MSM_CPU_7X25, + [41] = MSM_CPU_7X25, + [42] = MSM_CPU_7X25, + + /* 7x27 IDs */ + [43] = MSM_CPU_7X27, + [44] = MSM_CPU_7X27, + [61] = MSM_CPU_7X27, + + /* 8x50 IDs */ + [30] = MSM_CPU_8X50, + [36] = MSM_CPU_8X50, + [37] = MSM_CPU_8X50, + [38] = MSM_CPU_8X50, + + /* 7x30 IDs */ + [59] = MSM_CPU_7X30, + [60] = MSM_CPU_7X30, + + /* Uninitialized IDs are not known to run Linux. + MSM_CPU_UNKNOWN is set to 0 to ensure these IDs are + considered as unknown CPU. Any ID > 60 is invalid. */ +}; + +static enum msm_cpu cur_cpu; + +uint32_t socinfo_get_id(void) +{ + return (socinfo) ? socinfo->v1.id : 0; +} + +uint32_t socinfo_get_version(void) +{ + return (socinfo) ? socinfo->v1.version : 0; +} + +char *socinfo_get_build_id(void) +{ + return (socinfo) ? socinfo->v1.build_id : NULL; +} + +uint32_t socinfo_get_raw_id(void) +{ + return socinfo ? + (socinfo->v1.format == 2 ? socinfo->v2.raw_id : 0) + : 0; +} + +uint32_t socinfo_get_raw_version(void) +{ + return socinfo ? + (socinfo->v1.format == 2 ? socinfo->v2.raw_version : 0) + : 0; +} + +uint32_t socinfo_get_platform_type(void) +{ + return socinfo ? + (socinfo->v1.format == 3 ? socinfo->v3.hw_platform : 0) + : 0; +} + +enum msm_cpu socinfo_get_msm_cpu(void) +{ + return cur_cpu; +} + +static ssize_t +socinfo_show_id(struct sys_device *dev, + struct sysdev_attribute *attr, + char *buf) +{ + if (!socinfo) { + pr_err("%s: No socinfo found!\n", __func__); + return 0; + } + + return snprintf(buf, PAGE_SIZE, "%u\n", socinfo_get_id()); +} + +static ssize_t +socinfo_show_version(struct sys_device *dev, + struct sysdev_attribute *attr, + char *buf) +{ + uint32_t version; + + if (!socinfo) { + pr_err("%s: No socinfo found!\n", __func__); + return 0; + } + + version = socinfo_get_version(); + return snprintf(buf, PAGE_SIZE, "%u.%u\n", + SOCINFO_VERSION_MAJOR(version), + SOCINFO_VERSION_MINOR(version)); +} + +static ssize_t +socinfo_show_build_id(struct sys_device *dev, + struct sysdev_attribute *attr, + char *buf) +{ + if (!socinfo) { + pr_err("%s: No socinfo found!\n", __func__); + return 0; + } + + return snprintf(buf, PAGE_SIZE, "%-.32s\n", socinfo_get_build_id()); +} + +static ssize_t +socinfo_show_raw_id(struct sys_device *dev, + struct sysdev_attribute *attr, + char *buf) +{ + if (!socinfo) { + pr_err("%s: No socinfo found!\n", __func__); + return 0; + } + if (socinfo->v1.format != 2) { + pr_err("%s: Raw ID not available!\n", __func__); + return 0; + } + + return snprintf(buf, PAGE_SIZE, "%u\n", socinfo_get_raw_id()); +} + +static ssize_t +socinfo_show_raw_version(struct sys_device *dev, + struct sysdev_attribute *attr, + char *buf) +{ + if (!socinfo) { + pr_err("%s: No socinfo found!\n", __func__); + return 0; + } + if (socinfo->v1.format != 2) { + pr_err("%s: Raw version not available!\n", __func__); + return 0; + } + + return snprintf(buf, PAGE_SIZE, "%u\n", socinfo_get_raw_version()); +} + +static ssize_t +socinfo_show_platform_type(struct sys_device *dev, + struct sysdev_attribute *attr, + char *buf) +{ + uint32_t hw_type; + + if (!socinfo) { + pr_err("%s: No socinfo found!\n", __func__); + return 0; + } + if (socinfo->v1.format != 3) { + pr_err("%s: platform type not available!\n", __func__); + return 0; + } + + hw_type = socinfo_get_platform_type(); + if (hw_type >= HW_PLATFORM_INVALID) { + pr_err("%s: Invalid hardware platform type found\n", + __func__); + hw_type = HW_PLATFORM_UNKNOWN; + } + + return snprintf(buf, PAGE_SIZE, "%-.32s\n", hw_platform[hw_type]); +} + +static struct sysdev_attribute socinfo_v1_files[] = { + _SYSDEV_ATTR(id, 0444, socinfo_show_id, NULL), + _SYSDEV_ATTR(version, 0444, socinfo_show_version, NULL), + _SYSDEV_ATTR(build_id, 0444, socinfo_show_build_id, NULL), +}; + +static struct sysdev_attribute socinfo_v2_files[] = { + _SYSDEV_ATTR(raw_id, 0444, socinfo_show_raw_id, NULL), + _SYSDEV_ATTR(raw_version, 0444, socinfo_show_raw_version, NULL), +}; + +static struct sysdev_attribute socinfo_v3_files[] = { + _SYSDEV_ATTR(hw_platform, 0444, socinfo_show_platform_type, NULL), +}; + +static struct sysdev_class soc_sysdev_class = { + .name = "soc", +}; + +static struct sys_device soc_sys_device = { + .id = 0, + .cls = &soc_sysdev_class, +}; + +static void __init socinfo_create_files(struct sys_device *dev, + struct sysdev_attribute files[], + int size) +{ + int i; + for (i = 0; i < size; i++) { + int err = sysdev_create_file(dev, &files[i]); + if (err) { + pr_err("%s: sysdev_create_file(%s)=%d\n", + __func__, files[i].attr.name, err); + return; + } + } +} + +static void __init socinfo_init_sysdev(void) +{ + int err; + + err = sysdev_class_register(&soc_sysdev_class); + if (err) { + pr_err("%s: sysdev_class_register fail (%d)\n", + __func__, err); + return; + } + err = sysdev_register(&soc_sys_device); + if (err) { + pr_err("%s: sysdev_register fail (%d)\n", + __func__, err); + return; + } + socinfo_create_files(&soc_sys_device, socinfo_v1_files, + ARRAY_SIZE(socinfo_v1_files)); + if (socinfo->v1.format < 2) + return; + socinfo_create_files(&soc_sys_device, socinfo_v2_files, + ARRAY_SIZE(socinfo_v2_files)); + + if (socinfo->v1.format < 3) + return; + + socinfo_create_files(&soc_sys_device, socinfo_v3_files, + ARRAY_SIZE(socinfo_v3_files)); + +} + +int __init socinfo_init(void) +{ + socinfo = smem_alloc(SMEM_HW_SW_BUILD_ID, sizeof(struct socinfo_v3)); + if (!socinfo) + socinfo = smem_alloc(SMEM_HW_SW_BUILD_ID, + sizeof(struct socinfo_v2)); + + if (!socinfo) + socinfo = smem_alloc(SMEM_HW_SW_BUILD_ID, + sizeof(struct socinfo_v1)); + + if (!socinfo) { + pr_err("%s: Can't find SMEM_HW_SW_BUILD_ID\n", + __func__); + return -EIO; + } + + WARN(!socinfo_get_id(), "Unknown SOC ID!\n"); + WARN(socinfo_get_id() >= ARRAY_SIZE(cpu_of_id), + "New IDs added! ID => CPU mapping might need an update.\n"); + + if (socinfo->v1.id < ARRAY_SIZE(cpu_of_id)) + cur_cpu = cpu_of_id[socinfo->v1.id]; + + socinfo_init_sysdev(); + + switch (socinfo->v1.format) { + case 1: + pr_info("%s: v%u, id=%u, ver=%u.%u\n", + __func__, socinfo->v1.format, socinfo->v1.id, + SOCINFO_VERSION_MAJOR(socinfo->v1.version), + SOCINFO_VERSION_MINOR(socinfo->v1.version)); + break; + case 2: + pr_info("%s: v%u, id=%u, ver=%u.%u, " + "raw_id=%u, raw_ver=%u\n", + __func__, socinfo->v1.format, socinfo->v1.id, + SOCINFO_VERSION_MAJOR(socinfo->v1.version), + SOCINFO_VERSION_MINOR(socinfo->v1.version), + socinfo->v2.raw_id, socinfo->v2.raw_version); + break; + case 3: + pr_info("%s: v%u, id=%u, ver=%u.%u, " + "raw_id=%u, raw_ver=%u, hw_plat=%u\n", + __func__, socinfo->v1.format, socinfo->v1.id, + SOCINFO_VERSION_MAJOR(socinfo->v1.version), + SOCINFO_VERSION_MINOR(socinfo->v1.version), + socinfo->v2.raw_id, socinfo->v2.raw_version, + socinfo->v3.hw_platform); + break; + default: + pr_err("%s: Unknown format found\n", __func__); + break; + } + + return 0; +} |