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

Pull ARM SoC platform support updates from Kevin Hilman:
 "Our SoC branch usually contains expanded support for new SoCs and
  other core platform code.  Some highlights from this round:

   - sunxi: SMP support for A23 SoC
   - socpga: big-endian support
   - pxa: conversion to common clock framework
   - bcm: SMP support for BCM63138
   - imx: support new I.MX7D SoC
   - zte: basic support for ZX296702 SoC"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (134 commits)
  ARM: zx: Add basic defconfig support for ZX296702
  ARM: dts: zx: add an initial zx296702 dts and doc
  clk: zx: add clock support to zx296702
  dt-bindings: Add #defines for ZTE ZX296702 clocks
  ARM: socfpga: fix build error due to secondary_startup
  MAINTAINERS: ARM64: EXYNOS: Extend entry for ARM64 DTS
  ARM: ep93xx: simone: support for SPI-based MMC/SD cards
  MAINTAINERS: update Shawn's email to use kernel.org one
  ARM: socfpga: support suspend to ram
  ARM: socfpga: add CPU_METHOD_OF_DECLARE for Arria 10
  ARM: socfpga: use CPU_METHOD_OF_DECLARE for socfpga_cyclone5
  ARM: EXYNOS: register power domain driver from core_initcall
  ARM: EXYNOS: use PS_HOLD based poweroff for all supported SoCs
  ARM: SAMSUNG: Constify platform_device_id
  ARM: EXYNOS: Constify irq_domain_ops
  ARM: EXYNOS: add coupled cpuidle support for Exynos3250
  ARM: EXYNOS: add exynos_get_boot_addr() helper
  ARM: EXYNOS: add exynos_set_boot_addr() helper
  ARM: EXYNOS: make exynos_core_restart() less verbose
  ARM: EXYNOS: fix exynos_boot_secondary() return value on timeout
  ...

1 files changed, 88 insertions, 0 deletions

diff --git a/include/linux/reset/bcm63xx_pmb.h b/include/linux/reset/bcm63xx_pmb.h
new file mode 100644
index 000000000000..bb4af7b5eb36
--- /dev/null
+++ b/include/linux/reset/bcm63xx_pmb.h
@@ -0,0 +1,88 @@
+/*
+ * Broadcom BCM63xx Processor Monitor Bus shared routines (SMP and reset)
+ *
+ * Copyright (C) 2015, Broadcom Corporation
+ * Author: Florian Fainelli <f.fainelli@gmail.com>
+ *
+ * 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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#ifndef __BCM63XX_PMB_H
+#define __BCM63XX_PMB_H
+
+#include <linux/io.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+
+/* PMB Master controller register */
+#define PMB_CTRL		0x00
+#define  PMC_PMBM_START		(1 << 31)
+#define  PMC_PMBM_TIMEOUT	(1 << 30)
+#define  PMC_PMBM_SLAVE_ERR	(1 << 29)
+#define  PMC_PMBM_BUSY		(1 << 28)
+#define  PMC_PMBM_READ		(0 << 20)
+#define  PMC_PMBM_WRITE		(1 << 20)
+#define PMB_WR_DATA		0x04
+#define PMB_TIMEOUT		0x08
+#define PMB_RD_DATA		0x0C
+
+#define PMB_BUS_ID_SHIFT	8
+
+/* Perform the low-level PMB master operation, shared between reads and
+ * writes.
+ */
+static inline int __bpcm_do_op(void __iomem *master, unsigned int addr,
+			       u32 off, u32 op)
+{
+	unsigned int timeout = 1000;
+	u32 cmd;
+
+	cmd = (PMC_PMBM_START | op | (addr & 0xff) << 12 | off);
+	writel(cmd, master + PMB_CTRL);
+	do {
+		cmd = readl(master + PMB_CTRL);
+		if (!(cmd & PMC_PMBM_START))
+			return 0;
+
+		if (cmd & PMC_PMBM_SLAVE_ERR)
+			return -EIO;
+
+		if (cmd & PMC_PMBM_TIMEOUT)
+			return -ETIMEDOUT;
+
+		udelay(1);
+	} while (timeout-- > 0);
+
+	return -ETIMEDOUT;
+}
+
+static inline int bpcm_rd(void __iomem *master, unsigned int addr,
+			  u32 off, u32 *val)
+{
+	int ret = 0;
+
+	ret = __bpcm_do_op(master, addr, off >> 2, PMC_PMBM_READ);
+	*val = readl(master + PMB_RD_DATA);
+
+	return ret;
+}
+
+static inline int bpcm_wr(void __iomem *master, unsigned int addr,
+			  u32 off, u32 val)
+{
+	int ret = 0;
+
+	writel(val, master + PMB_WR_DATA);
+	ret = __bpcm_do_op(master, addr, off >> 2, PMC_PMBM_WRITE);
+
+	return ret;
+}
+
+#endif /* __BCM63XX_PMB_H */