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

Pull ARM/arm64 SoC platform updates from Olof Johansson: "This branch
  contains platform updates for 32- and 64-bit ARM, including defconfig
  updates to enable new options, drivers and platforms. There are also a
  few fixes and cleanups for some existing vendors.

  Some of the things worth highlighting here are:

   - Enabling new crypt drivers on arm64 defconfig

   - QCOM IPQ8074 clocks and pinctrl drivers on arm64 defconfig

   - Debug support enabled for Renesas r8a7743

   - Various config updates for Renesas platforms (sound, USB, other
     drivers)

   - Platform support (including SMP) for TI dra762

   - OMAP cleanups: Move to use generic 8250 debug_ll, removal of stale
     DMA code"

* tag 'armsoc-platforms' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (109 commits)
  ARM: multi_v7_defconfig: make eSDHC driver built-in
  arm64: defconfig: enable rockchip graphics
  MAINTAINERS: Update Cavium ThunderX2 entry
  ARM: config: aspeed: Add I2C, VUART, LPC Snoop
  ARM: configs: aspeed: Update Aspeed G4 with VMSPLIT_2G
  ARM: s3c24xx: Fix NAND ECC mode for mini2440 board
  ARM: davinci_all_defconfig: enable tinydrm and ST7586
  arm64: defconfig: Enable QCOM IPQ8074 clock and pinctrl
  ARM: defconfig: tegra: Enable ChipIdea UDC driver
  ARM: configs: Add Tegra I2S interfaces to multi_v7_defconfig
  ARM: tegra: Add Tegra I2S interfaces to defconfig
  ARM: tegra: Update default configuration for v4.13-rc1
  MAINTAINERS: update ARM/ZTE entry
  soc: versatile: remove unnecessary static in realview_soc_probe()
  ARM: Convert to using %pOF instead of full_name
  ARM: hisi: Fix typo in comment
  ARM: multi_v7_defconfig: add CONFIG_BRCMSTB_THERMAL
  arm64: defconfig: add CONFIG_BRCMSTB_THERMAL
  arm64: defconfig: add recently added crypto drivers as modules
  arm64: defconfig: enable CONFIG_UNIPHIER_WATCHDOG
  ...

1 files changed, 30 insertions, 3 deletions

diff --git a/arch/arm/mach-shmobile/pm-rcar-gen2.c b/arch/arm/mach-shmobile/pm-rcar-gen2.c
index 0178da7..e5f215c 100644
--- a/arch/arm/mach-shmobile/pm-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/pm-rcar-gen2.c
@@ -11,7 +11,9 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/ioport.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/smp.h>
 #include <linux/soc/renesas/rcar-sysc.h>
 #include <asm/io.h>
@@ -69,8 +71,9 @@ void __init rcar_gen2_pm_init(void)
 	struct device_node *np, *cpus;
 	bool has_a7 = false;
 	bool has_a15 = false;
-	phys_addr_t boot_vector_addr = ICRAM1;
+	struct resource res;
 	u32 syscier = 0;
+	int error;
 
 	if (once++)
 		return;
@@ -91,14 +94,38 @@ void __init rcar_gen2_pm_init(void)
 	else if (of_machine_is_compatible("renesas,r8a7791"))
 		syscier = 0x00111003;
 
+	np = of_find_compatible_node(NULL, NULL, "renesas,smp-sram");
+	if (!np) {
+		/* No smp-sram in DT, fall back to hardcoded address */
+		res = (struct resource)DEFINE_RES_MEM(ICRAM1,
+						      shmobile_boot_size);
+		goto map;
+	}
+
+	error = of_address_to_resource(np, 0, &res);
+	if (error) {
+		pr_err("Failed to get smp-sram address: %d\n", error);
+		return;
+	}
+
+map:
 	/* RAM for jump stub, because BAR requires 256KB aligned address */
-	p = ioremap_nocache(boot_vector_addr, shmobile_boot_size);
+	if (res.start & (256 * 1024 - 1) ||
+	    resource_size(&res) < shmobile_boot_size) {
+		pr_err("Invalid smp-sram region\n");
+		return;
+	}
+
+	p = ioremap(res.start, resource_size(&res));
+	if (!p)
+		return;
+
 	memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size);
 	iounmap(p);
 
 	/* setup reset vectors */
 	p = ioremap_nocache(RST, 0x63);
-	bar = phys_to_sbar(boot_vector_addr);
+	bar = phys_to_sbar(res.start);
 	if (has_a15) {
 		writel_relaxed(bar, p + CA15BAR);
 		writel_relaxed(bar | SBAR_BAREN, p + CA15BAR);