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Diffstat (limited to 'arch/arm/mach-omap2/id.c')
-rw-r--r--arch/arm/mach-omap2/id.c95
1 files changed, 87 insertions, 8 deletions
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index ff0bc9e51aa7..2fb17caa8683 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -18,6 +18,11 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
+#include <linux/slab.h>
+
+#ifdef CONFIG_SOC_BUS
+#include <linux/sys_soc.h>
+#endif
#include <asm/cputype.h>
@@ -31,8 +36,11 @@
#define OMAP4_SILICON_TYPE_STANDARD 0x01
#define OMAP4_SILICON_TYPE_PERFORMANCE 0x02
+#define OMAP_SOC_MAX_NAME_LENGTH 16
+
static unsigned int omap_revision;
-static const char *cpu_rev;
+static char soc_name[OMAP_SOC_MAX_NAME_LENGTH];
+static char soc_rev[OMAP_SOC_MAX_NAME_LENGTH];
u32 omap_features;
unsigned int omap_rev(void)
@@ -169,9 +177,12 @@ void __init omap2xxx_check_revision(void)
j = i;
}
- pr_info("OMAP%04x", omap_rev() >> 16);
+ sprintf(soc_name, "OMAP%04x", omap_rev() >> 16);
+ sprintf(soc_rev, "ES%x", (omap_rev() >> 12) & 0xf);
+
+ pr_info("%s", soc_name);
if ((omap_rev() >> 8) & 0x0f)
- pr_info("ES%x", (omap_rev() >> 12) & 0xf);
+ pr_info("%s", soc_rev);
pr_info("\n");
}
@@ -211,8 +222,10 @@ static void __init omap3_cpuinfo(void)
cpu_name = "OMAP3503";
}
+ sprintf(soc_name, "%s", cpu_name);
+
/* Print verbose information */
- pr_info("%s ES%s (", cpu_name, cpu_rev);
+ pr_info("%s %s (", soc_name, soc_rev);
OMAP3_SHOW_FEATURE(l2cache);
OMAP3_SHOW_FEATURE(iva);
@@ -291,6 +304,7 @@ void __init ti81xx_check_features(void)
void __init omap3xxx_check_revision(void)
{
+ const char *cpu_rev;
u32 cpuid, idcode;
u16 hawkeye;
u8 rev;
@@ -438,6 +452,7 @@ void __init omap3xxx_check_revision(void)
cpu_rev = "1.2";
pr_warn("Warning: unknown chip type; assuming OMAP3630ES1.2\n");
}
+ sprintf(soc_rev, "ES%s", cpu_rev);
}
void __init omap4xxx_check_revision(void)
@@ -512,8 +527,10 @@ void __init omap4xxx_check_revision(void)
omap_revision = OMAP4430_REV_ES2_3;
}
- pr_info("OMAP%04x ES%d.%d\n", omap_rev() >> 16,
- ((omap_rev() >> 12) & 0xf), ((omap_rev() >> 8) & 0xf));
+ sprintf(soc_name, "OMAP%04x", omap_rev() >> 16);
+ sprintf(soc_rev, "ES%d.%d", (omap_rev() >> 12) & 0xf,
+ (omap_rev() >> 8) & 0xf);
+ pr_info("%s %s\n", soc_name, soc_rev);
}
void __init omap5xxx_check_revision(void)
@@ -553,8 +570,10 @@ void __init omap5xxx_check_revision(void)
omap_revision = OMAP5430_REV_ES2_0;
}
- pr_info("OMAP%04x ES%d.0\n",
- omap_rev() >> 16, ((omap_rev() >> 12) & 0xf));
+ sprintf(soc_name, "OMAP%04x", omap_rev() >> 16);
+ sprintf(soc_rev, "ES%d.0", (omap_rev() >> 12) & 0xf);
+
+ pr_info("%s %s\n", soc_name, soc_rev);
}
/*
@@ -575,3 +594,63 @@ void __init omap2_set_globals_tap(u32 class, void __iomem *tap)
else
tap_prod_id = 0x0208;
}
+
+#ifdef CONFIG_SOC_BUS
+
+static const char const *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 const char * __init omap_get_family(void)
+{
+ if (cpu_is_omap24xx())
+ return kasprintf(GFP_KERNEL, "OMAP2");
+ else if (cpu_is_omap34xx())
+ return kasprintf(GFP_KERNEL, "OMAP3");
+ else if (cpu_is_omap44xx())
+ return kasprintf(GFP_KERNEL, "OMAP4");
+ else if (soc_is_omap54xx())
+ return kasprintf(GFP_KERNEL, "OMAP5");
+ else
+ return kasprintf(GFP_KERNEL, "Unknown");
+}
+
+static ssize_t omap_get_type(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%s\n", omap_types[omap_type()]);
+}
+
+static struct device_attribute omap_soc_attr =
+ __ATTR(type, S_IRUGO, omap_get_type, NULL);
+
+void __init omap_soc_device_init(void)
+{
+ struct device *parent;
+ struct soc_device *soc_dev;
+ struct soc_device_attribute *soc_dev_attr;
+
+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ if (!soc_dev_attr)
+ return;
+
+ soc_dev_attr->machine = soc_name;
+ soc_dev_attr->family = omap_get_family();
+ soc_dev_attr->revision = soc_rev;
+
+ soc_dev = soc_device_register(soc_dev_attr);
+ if (IS_ERR_OR_NULL(soc_dev)) {
+ kfree(soc_dev_attr);
+ return;
+ }
+
+ parent = soc_device_to_device(soc_dev);
+ if (!IS_ERR_OR_NULL(parent))
+ device_create_file(parent, &omap_soc_attr);
+}
+#endif /* CONFIG_SOC_BUS */