Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm

* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (137 commits)
  ARM: bcmring: convert to use sp804 clockevents
  ARM: bcmring: convert to sp804 clocksource
  ARM: 6912/1: bcmring: Add clkdev table in init_early
  clockevents: ARM sp804: obtain sp804 timer rate via clks
  clockevents: ARM sp804: allow clockevent name to be specified
  clocksource: ARM sp804: obtain sp804 timer rate via clks
  clocksource: ARM sp804: allow clocksource name to be specified
  clocksource: convert OMAP1 to 32-bit down counting clocksource
  clocksource: convert MXS timrotv2 to 32-bit down counting clocksource
  clocksource: convert SPEAr platforms 16-bit up counting clocksource
  clocksource: convert Integrator/AP 16-bit down counting clocksource
  clocksource: convert W90x900 24-bit down counting clocksource
  clocksource: convert ARM 32-bit down counting clocksources
  clocksource: convert ARM 32-bit up counting clocksources
  clocksource: add common mmio clocksource
  ARM: update sa1100 to reflect PXA updates
  ARM: omap1: convert to using readl/writel instead of volatile struct
  ARM: omap1: delete useless interrupt handler
  ARM: s5p: consolidate selection of timer register
  ARM: 6939/1: fix missing 'cpu_relax()' declaration
  ...

1 files changed, 57 insertions, 0 deletions

diff --git a/arch/arm/mach-imx/cpu-imx31.c b/arch/arm/mach-imx/cpu-imx31.c
new file mode 100644
index 000000000000..a3780700a882
--- /dev/null
+++ b/arch/arm/mach-imx/cpu-imx31.c
@@ -0,0 +1,57 @@
+/*
+ * MX31 CPU type detection
+ *
+ * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/io.h>
+#include <mach/hardware.h>
+#include <mach/iim.h>
+
+unsigned int mx31_cpu_rev;
+EXPORT_SYMBOL(mx31_cpu_rev);
+
+static struct {
+        u8 srev;
+        const char *name;
+        const char *v;
+        unsigned int rev;
+} mx31_cpu_type[] __initdata = {
+        { .srev = 0x00, .name = "i.MX31(L)", .v = "1.0",  .rev = IMX_CHIP_REVISION_1_0  },
+        { .srev = 0x10, .name = "i.MX31",    .v = "1.1",  .rev = IMX_CHIP_REVISION_1_1  },
+        { .srev = 0x11, .name = "i.MX31L",   .v = "1.1",  .rev = IMX_CHIP_REVISION_1_1  },
+        { .srev = 0x12, .name = "i.MX31",    .v = "1.15", .rev = IMX_CHIP_REVISION_1_1  },
+        { .srev = 0x13, .name = "i.MX31L",   .v = "1.15", .rev = IMX_CHIP_REVISION_1_1  },
+        { .srev = 0x14, .name = "i.MX31",    .v = "1.2",  .rev = IMX_CHIP_REVISION_1_2  },
+        { .srev = 0x15, .name = "i.MX31L",   .v = "1.2",  .rev = IMX_CHIP_REVISION_1_2  },
+        { .srev = 0x28, .name = "i.MX31",    .v = "2.0",  .rev = IMX_CHIP_REVISION_2_0  },
+        { .srev = 0x29, .name = "i.MX31L",   .v = "2.0",  .rev = IMX_CHIP_REVISION_2_0  },
+};
+
+void __init mx31_read_cpu_rev(void)
+{
+        u32 i, srev;
+
+        /* read SREV register from IIM module */
+        srev = __raw_readl(MX31_IO_ADDRESS(MX31_IIM_BASE_ADDR + MXC_IIMSREV));
+
+        for (i = 0; i < ARRAY_SIZE(mx31_cpu_type); i++)
+                if (srev == mx31_cpu_type[i].srev) {
+                        printk(KERN_INFO
+                                "CPU identified as %s, silicon rev %s\n",
+                                mx31_cpu_type[i].name, mx31_cpu_type[i].v);
+
+                        mx31_cpu_rev = mx31_cpu_type[i].rev;
+                        return;
+                }
+
+        mx31_cpu_rev = IMX_CHIP_REVISION_UNKNOWN;
+
+        printk(KERN_WARNING "Unknown CPU identifier. srev = %02x\n", srev);
+}