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/* OMAP Identity file for OMAP4 boards.
*
* Copyright (C) 2011 Google, Inc.
* Copyright (C) 2010 Texas Instruments
*
* Based on mach-omap2/board-omap4panda.c
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <mach/hardware.h>
#include <mach/omap4-common.h>
#include <mach/id.h>
#include <plat/omap_apps_brd_id.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include "control.h"
static ssize_t omap4_soc_family_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
return sprintf(buf, "OMAP%04x\n", GET_OMAP_TYPE);
}
static ssize_t omap4_soc_revision_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
return sprintf(buf, "ES%d.%d\n", (GET_OMAP_REVISION() >> 4) & 0xf,
GET_OMAP_REVISION() & 0xf);
}
static const char *omap_types[] = {
[OMAP2_DEVICE_TYPE_TEST] = "TST",
[OMAP2_DEVICE_TYPE_EMU] = "EMU",
[OMAP2_DEVICE_TYPE_SEC] = "HS",
[OMAP2_DEVICE_TYPE_GP] = "GP",
[OMAP2_DEVICE_TYPE_BAD] = "BAD",
};
static ssize_t omap4_soc_type_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
return sprintf(buf, "%s\n", omap_types[omap_type()]);
}
static const char *app_board_rev_types[] = {
[OMAP4_TABLET_1_0_ID] = "Tablet 1.0",
[OMAP4_TABLET_1_1_ID] = "Tablet 1.1",
[OMAP4_TABLET_1_2_ID] = "Tablet 1.2",
[OMAP4_TABLET_2_0_ID] = "Tablet 2.0",
[OMAP4_TABLET_2_1_ID] = "Tablet 2.1",
[OMAP4_TABLET_2_1_1_ID] = "Tablet 2.1.1",
[OMAP4_TABLET_2_1_2_ID] = "Tablet 2.1.2",
[OMAP4_BLAZE_ID] = "Blaze/SDP",
[OMAP4_PANDA_ID] = "Panda",
[OMAP4_MAX_ID] = "Unknown",
};
static ssize_t omap4_prod_id_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
struct omap_die_id opi;
omap_get_production_id(&opi);
return sprintf(buf, "%08X-%08X\n", opi.id_1, opi.id_0);
}
static ssize_t omap4_die_id_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
struct omap_die_id opi;
omap_get_die_id(&opi);
return sprintf(buf, "%08X-%08X-%08X-%08X\n", opi.id_3,
opi.id_2, opi.id_1, opi.id_0);
}
static ssize_t omap4_board_rev_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
int apps_brd_rev = 0;
apps_brd_rev = omap_get_board_id();
if (apps_brd_rev < 0)
return -EINVAL;
if (apps_brd_rev > OMAP4_MAX_ID)
apps_brd_rev = OMAP4_MAX_ID;
return sprintf(buf, "%s\n", app_board_rev_types[apps_brd_rev]);
}
static ssize_t omap4_soc_type_max_freq(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
char *max_freq = "unknown";
if (omap4_has_mpu_1_5ghz())
max_freq = "1.5Ghz";
else if (omap4_has_mpu_1_3ghz())
max_freq = "1.3Ghz";
else if (omap4_has_mpu_1_2ghz())
max_freq = "1.2Ghz";
else
max_freq = "1.0Ghz";
return sprintf(buf, "%s\n", max_freq);
}
static ssize_t omap4_soc_dpll_trimmed(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
int trimmed;
char *trim_freq = "2.0GhZ";
trimmed = omap_readl(0x4a002268) & ((1 << 18) | (1 << 19));
if ((trimmed & (1 << 18)) && (trimmed & (1 << 19)))
trim_freq = "3.0GHz";
else if (trimmed & (1 << 18))
trim_freq = "2.4GHz";
pr_info("%s:DPLL is trimmed to %s\n", __func__, trim_freq);
return sprintf(buf, "%s\n", trim_freq);
}
static ssize_t omap4_soc_rbb_trimmed(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
int trimmed = 1;
int reg = 0;
if (cpu_is_omap446x()) {
/* read eFuse register here */
reg = omap_ctrl_readl(OMAP4_CTRL_MODULE_CORE_STD_FUSE_OPP_DPLL_1);
trimmed = reg & (1 << 20);
pr_info("%s:RBB is %s set\n", __func__, trimmed ? "" : "not");
return sprintf(buf, "%s\n", trimmed ? "true" : "false");
}
return sprintf(buf, "%s\n", "Not Available");
}
#define OMAP4_SOC_ATTR_RO(_name, _show) \
struct kobj_attribute omap4_soc_prop_attr_##_name = \
__ATTR(_name, S_IRUGO, _show, NULL)
#define OMAP4_BOARD_ATTR_RO(_name, _show) \
struct kobj_attribute omap4_board_prop_attr_##_name = \
__ATTR(_name, S_IRUGO, _show, NULL)
static OMAP4_SOC_ATTR_RO(family, omap4_soc_family_show);
static OMAP4_SOC_ATTR_RO(revision, omap4_soc_revision_show);
static OMAP4_SOC_ATTR_RO(type, omap4_soc_type_show);
static OMAP4_SOC_ATTR_RO(max_freq, omap4_soc_type_max_freq);
static OMAP4_SOC_ATTR_RO(dpll_trimmed, omap4_soc_dpll_trimmed);
static OMAP4_SOC_ATTR_RO(rbb_trimmed, omap4_soc_rbb_trimmed);
static OMAP4_SOC_ATTR_RO(production_id, omap4_prod_id_show);
static OMAP4_SOC_ATTR_RO(die_id, omap4_die_id_show);
static OMAP4_BOARD_ATTR_RO(board_rev, omap4_board_rev_show);
static struct attribute *omap4_soc_prop_attrs[] = {
&omap4_soc_prop_attr_family.attr,
&omap4_soc_prop_attr_revision.attr,
&omap4_soc_prop_attr_type.attr,
&omap4_soc_prop_attr_max_freq.attr,
&omap4_soc_prop_attr_dpll_trimmed.attr,
&omap4_soc_prop_attr_rbb_trimmed.attr,
&omap4_soc_prop_attr_production_id.attr,
&omap4_soc_prop_attr_die_id.attr,
NULL,
};
static struct attribute *omap4_board_prop_attrs[] = {
&omap4_board_prop_attr_board_rev.attr,
NULL,
};
static struct attribute_group omap4_soc_prop_attr_group = {
.attrs = omap4_soc_prop_attrs,
};
static struct attribute_group omap4_board_prop_attr_group = {
.attrs = omap4_board_prop_attrs,
};
void __init omap4_create_board_props(void)
{
struct kobject *board_props_kobj;
struct kobject *soc_kobj = NULL;
struct kobject *board_kobj = NULL;
int ret = 0;
board_props_kobj = kobject_create_and_add("board_properties", NULL);
if (!board_props_kobj)
goto err_board_obj;
soc_kobj = kobject_create_and_add("soc", board_props_kobj);
if (!soc_kobj)
goto err_soc_obj;
board_kobj = kobject_create_and_add("board", board_props_kobj);
if (!board_kobj)
goto err_app_board_obj;
ret = sysfs_create_group(soc_kobj, &omap4_soc_prop_attr_group);
if (ret)
goto err_soc_sysfs_create;
ret = sysfs_create_group(board_kobj, &omap4_board_prop_attr_group);
if (ret)
goto err_board_sysfs_create;
return;
err_board_sysfs_create:
sysfs_remove_group(soc_kobj, &omap4_soc_prop_attr_group);
err_soc_sysfs_create:
kobject_put(board_kobj);
err_app_board_obj:
kobject_put(soc_kobj);
err_soc_obj:
kobject_put(board_props_kobj);
err_board_obj:
if (!board_props_kobj || !soc_kobj || ret)
pr_err("failed to create board_properties\n");
}
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