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

Pull ARM SoC platform changes from Arnd Bergmann:
 "New and updated SoC support.  Among the things new for this release
  are:

   - at91: Added support for the new SAMA5D4 SoC, following the earlier
     SAMA5D3
   - bcm: Added support for BCM63XX family of DSL SoCs
   - hisi: Added support for HiP04 server-class SoC
   - meson: Initial support for the Amlogic Meson6 (aka 8726MX) platform
   - shmobile: added support for new r8a7794 (R-Car E2) automotive SoC

  Noteworthy changes to existing SoC support are:

   - imx: convert i.MX1 to device tree
   - omap: lots of power management work
   - omap: base support to enable moving to standard UART driver
   - shmobile: lots of progress for multiplatform support, still
     ongoing"

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (171 commits)
  ARM: hisi: depend on ARCH_MULTI_V7
  CNS3xxx: Fix debug UART.
  ARM: at91: fix nommu build regression
  ARM: meson: add basic support for MesonX SoCs
  ARM: meson: debug: add debug UART for earlyprintk support
  irq: Export handle_fasteoi_irq
  ARM: mediatek: Add earlyprintk support for mt6589
  ARM: hisi: Fix platmcpm compilation when ARMv6 is selected
  ARM: debug: fix alphanumerical order on debug uarts
  ARM: at91: document Atmel SMART compatibles
  ARM: at91: add sama5d4 support to sama5_defconfig
  ARM: at91: dt: add device tree file for SAMA5D4ek board
  ARM: at91: dt: add device tree file for SAMA5D4 SoC
  ARM: at91: SAMA5D4 SoC detection code and low level routines
  ARM: at91: introduce basic SAMA5D4 support
  clk: at91: add a driver for the h32mx clock
  ARM: pxa3xx: provide specific platform_devices for all ssp ports
  ARM: pxa: ssp: provide platform_device_id for PXA3xx
  ARM: OMAP4+: Remove static iotable mappings for SRAM
  ARM: OMAP4+: Move SRAM data to DT
  ...

1 files changed, 51 insertions, 1 deletions

diff --git a/arch/arm/mach-clps711x/devices.c b/arch/arm/mach-clps711x/devices.c
index 0c689d3..77a9617 100644
--- a/arch/arm/mach-clps711x/devices.c
+++ b/arch/arm/mach-clps711x/devices.c
@@ -1,7 +1,7 @@
 /*
  *  CLPS711X common devices definitions
  *
- *  Author: Alexander Shiyan <shc_work@mail.ru>, 2013
+ *  Author: Alexander Shiyan <shc_work@mail.ru>, 2013-2014
  *
  * 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
@@ -9,8 +9,15 @@
  * (at your option) any later version.
  */
 
+#include <linux/io.h>
+#include <linux/of_fdt.h>
 #include <linux/platform_device.h>
+#include <linux/random.h>
 #include <linux/sizes.h>
+#include <linux/slab.h>
+#include <linux/sys_soc.h>
+
+#include <asm/system_info.h>
 
 #include <mach/hardware.h>
 
@@ -90,10 +97,53 @@ static void __init clps711x_add_uart(void)
 					ARRAY_SIZE(clps711x_uart2_res));
 };
 
+static void __init clps711x_soc_init(void)
+{
+	struct soc_device_attribute *soc_dev_attr;
+	struct soc_device *soc_dev;
+	void __iomem *base;
+	u32 id[5];
+
+	base = ioremap(CLPS711X_PHYS_BASE, SZ_32K);
+	if (!base)
+		return;
+
+	id[0] = readl(base + UNIQID);
+	id[1] = readl(base + RANDID0);
+	id[2] = readl(base + RANDID1);
+	id[3] = readl(base + RANDID2);
+	id[4] = readl(base + RANDID3);
+	system_rev = SYSFLG1_VERID(readl(base + SYSFLG1));
+
+	add_device_randomness(id, sizeof(id));
+
+	system_serial_low = id[0];
+
+	soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+	if (!soc_dev_attr)
+		goto out_unmap;
+
+	soc_dev_attr->machine = of_flat_dt_get_machine_name();
+	soc_dev_attr->family = "Cirrus Logic CLPS711X";
+	soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u", system_rev);
+	soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "%08x", id[0]);
+
+	soc_dev = soc_device_register(soc_dev_attr);
+	if (IS_ERR(soc_dev)) {
+		kfree(soc_dev_attr->revision);
+		kfree(soc_dev_attr->soc_id);
+		kfree(soc_dev_attr);
+	}
+
+out_unmap:
+	iounmap(base);
+}
+
 void __init clps711x_devices_init(void)
 {
 	clps711x_add_cpuidle();
 	clps711x_add_gpio();
 	clps711x_add_syscon();
 	clps711x_add_uart();
+	clps711x_soc_init();
 }