Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Olof Johansson:
 "This branch contains part 1 of the platform updates for 3.10.  Among
  the highlights:

   - Support for the new Atmel Cortex-A5 based platforms (SAMA5D3)
   - New support for CSR SiRFatlas6 SoCs
   - A handful of updates for NVidia T114 (a.k.a. Tegra 4)
   - A bunch of updates for the shmobile platforms
   - A handful of updates for davinci
   - A few updates for Qualcomm MSM
   - Plus a handful of other patches, defconfig updates, etc."

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (135 commits)
  ARM: tegra: pm: fix build error w/o PM_SLEEP
  ARM: davinci: ensure global variables are declared
  ARM: davinci: sram.c: fix incorrect type in assignment
  ARM: davinci: da8xx dt: make file local symbols static
  ARM: davinci: da8xx: add remoteproc support
  ARM: socfpga: Upgrade clk driver for socfpga to make use of dts clock entries
  ARM: socfpga: Add clock entries into device tree
  ARM: socfpga: Enable soft reset
  ARM: EXYNOS: replace cpumask by the corresponding macro
  ARM: EXYNOS: handle properly the return values
  ARM: EXYNOS: factor out the idle states
  ARM: OMAP4: Enable fix for Cortex-A9 erratas
  ARM: OMAP2+: Export SoC information to userspace
  ARM: OMAP2+: SoC name and revision unification
  ARM: OMAP2+: Move common part of late init into common function
  ARM: tegra: pm: remove duplicated include from pm.c
  ARM: davinci: da850: override mmc DT node device name
  ARM: davinci: da850: add mmc DT entries
  mmc: davinci_mmc: add DT support
  ARM: SAMSUNG: check processor type before cache restoration in resume
  ...

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 */