Merge tag 'soc-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC code updates from Arnd Bergmann:
 "This time there are only fairly minor cleanups across the i.MX,
  ixp4xx, ux500 and renesas platforms.

  The only notable update is a change to the keystone2 platform to
  switch switch it over to standard PSCI SMP bringup, which apparently
  was present in the shipped firmware almost from the start"

* tag 'soc-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: ixp4xx: Remove unused debug iomap
  MAINTAINERS: Add DHCOR to the DH electronic i.MX6 board support
  ARM: ixp4xx: Remove unused static map
  MAINTAINERS: adjust ARM/INTEL IXP4XX ARM ARCHITECTURE to ixp4xx clean-up
  ARM: imx3: Remove unneeded #include <linux/pinctrl/machine.h>
  ARM: mxs: Remove unneeded #include <linux/pinctrl/consumer.h>
  riscv: Kconfig.socs: Add ARCH_RENESAS kconfig option
  ARM: ux500: Drop unused register file
  ARM: ux500: do not directly dereference __iomem
  arm/mach-ux500: fix repeated words in comments
  arm64: renesas: Drop selecting GPIOLIB and PINCTRL
  ARM: shmobile: Drop selecting GPIOLIB and PINCTRL
  ARM: keystone: Replace platform SMP with PSCI
  soc: renesas: Kconfig: Explicitly select GPIOLIB and PINCTRL config under SOC_RENESAS

MAINTAINERS

@@ -2282,8 +2282,6 @@ F:	drivers/clocksource/timer-ixp4xx.c
 F:	drivers/crypto/ixp4xx_crypto.c
 F:	drivers/gpio/gpio-ixp4xx.c
 F:	drivers/irqchip/irq-ixp4xx.c
-F:	include/linux/irqchip/irq-ixp4xx.h
-F:	include/linux/platform_data/timer-ixp4xx.h
 
 ARM/INTEL KEEMBAY ARCHITECTURE
 M:	Paul J. Murphy <paul.j.murphy@intel.com>
@@ -6039,11 +6037,12 @@ F:	include/net/devlink.h
 F:	include/uapi/linux/devlink.h
 F:	net/core/devlink.c
 
-DH ELECTRONICS IMX6 DHCOM BOARD SUPPORT
+DH ELECTRONICS IMX6 DHCOM/DHCOR BOARD SUPPORT
 M:	Christoph Niedermaier <cniedermaier@dh-electronics.com>
 L:	kernel@dh-electronics.com
 S:	Maintained
 F:	arch/arm/boot/dts/imx6*-dhcom-*
+F:	arch/arm/boot/dts/imx6*-dhcor-*
 
 DH ELECTRONICS STM32MP1 DHCOM/DHCOR BOARD SUPPORT
 M:	Marek Vasut <marex@denx.de>

arch/arm/mach-imx/mm-imx3.c

@@ -12,7 +12,6 @@
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/of_address.h>
-#include <linux/pinctrl/machine.h>
 
 #include <asm/system_misc.h>
 #include <asm/hardware/cache-l2x0.h>

arch/arm/mach-ixp4xx/ixp4xx-of.c

@@ -2,48 +2,7 @@
 /*
  * IXP4xx Device Tree boot support
  */
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/io.h>
-
 #include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-
-/*
- * These are the only fixed phys to virt mappings we ever need
- * we put it right after the UART mapping at 0xffc80000-0xffc81fff
- */
-#define IXP4XX_EXP_CFG_BASE_PHYS	0xC4000000
-#define IXP4XX_EXP_CFG_BASE_VIRT	0xFEC14000
-
-static struct map_desc ixp4xx_of_io_desc[] __initdata = {
-	/*
-	 * This is needed for runtime system configuration checks,
-	 * such as reading if hardware so-and-so is present. This
-	 * could eventually be converted into a syscon once all boards
-	 * are converted to device tree.
-	 */
-	{
-		.virtual = IXP4XX_EXP_CFG_BASE_VIRT,
-		.pfn = __phys_to_pfn(IXP4XX_EXP_CFG_BASE_PHYS),
-		.length = SZ_4K,
-		.type = MT_DEVICE,
-	},
-#ifdef CONFIG_DEBUG_UART_8250
-	/* This is needed for LL-debug/earlyprintk/debug-macro.S */
-	{
-		.virtual = CONFIG_DEBUG_UART_VIRT,
-		.pfn = __phys_to_pfn(CONFIG_DEBUG_UART_PHYS),
-		.length = SZ_4K,
-		.type = MT_DEVICE,
-	},
-#endif
-};
-
-static void __init ixp4xx_of_map_io(void)
-{
-	iotable_init(ixp4xx_of_io_desc, ARRAY_SIZE(ixp4xx_of_io_desc));
-}
 
 /*
  * We handle 4 different SoC families. These compatible strings are enough
@@ -59,6 +18,5 @@ static const char *ixp4xx_of_board_compat[] = {
 };
 
 DT_MACHINE_START(IXP4XX_DT, "IXP4xx (Device Tree)")
-	.map_io		= ixp4xx_of_map_io,
 	.dt_compat	= ixp4xx_of_board_compat,
 MACHINE_END

arch/arm/mach-keystone/Makefile

 # SPDX-License-Identifier: GPL-2.0
-obj-y					:= keystone.o smc.o
-
-obj-$(CONFIG_SMP)			+= platsmp.o
+obj-y					:= keystone.o
 
 # PM domain driver for Keystone SOCs
 obj-$(CONFIG_ARCH_KEYSTONE)		+= pm_domain.o

arch/arm/mach-keystone/keystone.c

@@ -18,7 +18,6 @@
 #include <asm/mach/map.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
-#include <asm/smp_plat.h>
 #include <asm/memory.h>
 
 #include "memory.h"
@@ -103,7 +102,6 @@ DT_MACHINE_START(KEYSTONE, "Keystone")
 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
 	.dma_zone_size	= SZ_2G,
 #endif
-	.smp		= smp_ops(keystone_smp_ops),
 	.init_machine	= keystone_init,
 	.dt_compat	= keystone_match,
 	.pv_fixup	= keystone_pv_fixup,

arch/arm/mach-keystone/keystone.h

@@ -8,13 +8,8 @@
 #ifndef __KEYSTONE_H__
 #define __KEYSTONE_H__
 
-#define KEYSTONE_MON_CPU_UP_IDX		0x00
-
 #ifndef __ASSEMBLER__
 
-extern const struct smp_operations keystone_smp_ops;
-extern void secondary_startup(void);
-extern u32 keystone_cpu_smc(u32 command, u32 cpu, u32 addr);
 extern int keystone_pm_runtime_init(void);
 
 #endif /* __ASSEMBLER__ */

arch/arm/mach-keystone/platsmp.c

-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Keystone SOC SMP platform code
- *
- * Copyright 2013 Texas Instruments, Inc.
- *	Cyril Chemparathy <cyril@ti.com>
- *	Santosh Shilimkar <santosh.shillimkar@ti.com>
- *
- * Based on platsmp.c, Copyright (C) 2002 ARM Ltd.
- */
-
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/io.h>
-#include <linux/pgtable.h>
-
-#include <asm/smp_plat.h>
-#include <asm/prom.h>
-#include <asm/tlbflush.h>
-
-#include "keystone.h"
-
-static int keystone_smp_boot_secondary(unsigned int cpu,
-						struct task_struct *idle)
-{
-	unsigned long start = virt_to_idmap(&secondary_startup);
-	int error;
-
-	pr_debug("keystone-smp: booting cpu %d, vector %08lx\n",
-		 cpu, start);
-
-	error = keystone_cpu_smc(KEYSTONE_MON_CPU_UP_IDX, cpu, start);
-	if (error)
-		pr_err("CPU %d bringup failed with %d\n", cpu, error);
-
-	return error;
-}
-
-const struct smp_operations keystone_smp_ops __initconst = {
-	.smp_boot_secondary	= keystone_smp_boot_secondary,
-};

arch/arm/mach-keystone/smc.S

-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Keystone Secure APIs
- *
- * Copyright (C) 2013 Texas Instruments, Inc.
- * 	Santosh Shilimkar <santosh.shilimkar@ti.com>
- */
-
-#include <linux/linkage.h>
-
-/**
- * u32 keystone_cpu_smc(u32 command, u32 cpu, u32 addr)
- *
- * Low level CPU monitor API
- * @command:	Monitor command.
- * @cpu:	CPU Number
- * @addr:	Kernel jump address for boot CPU
- *
- * Return: Non zero value on failure
- */
-	.arch_extension sec
-ENTRY(keystone_cpu_smc)
-	stmfd   sp!, {r4-r11, lr}
-	smc	#0
-	ldmfd   sp!, {r4-r11, pc}
-ENDPROC(keystone_cpu_smc)

arch/arm/mach-mxs/mach-mxs.c

@@ -17,7 +17,6 @@
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/phy.h>
-#include <linux/pinctrl/consumer.h>
 #include <linux/sys_soc.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>

arch/arm/mach-shmobile/Kconfig

@@ -3,7 +3,5 @@ menuconfig ARCH_RENESAS
 	bool "Renesas ARM SoCs"
 	depends on ARCH_MULTI_V7
 	select ARM_GIC
-	select GPIOLIB
 	select NO_IOPORT_MAP
-	select PINCTRL
 	select ZONE_DMA if ARM_LPAE

arch/arm/mach-ux500/cpu-db8500.c

@@ -26,7 +26,6 @@
 #include <asm/mach/map.h>
 #include <asm/mach/arch.h>
 
-#include "db8500-regs.h"
 #include "pm_domains.h"
 
 static int __init ux500_l2x0_unlock(void)

arch/arm/mach-ux500/db8500-regs.h

-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) ST-Ericsson SA 2010
- */
-
-#ifndef __MACH_DB8500_REGS_H
-#define __MACH_DB8500_REGS_H
-
-/* Base address and bank offsets for ESRAM */
-#define U8500_ESRAM_BASE	0x40000000
-#define U8500_ESRAM_BANK_SIZE	0x00020000
-#define U8500_ESRAM_BANK0	U8500_ESRAM_BASE
-#define U8500_ESRAM_BANK1	(U8500_ESRAM_BASE + U8500_ESRAM_BANK_SIZE)
-#define U8500_ESRAM_BANK2	(U8500_ESRAM_BANK1 + U8500_ESRAM_BANK_SIZE)
-#define U8500_ESRAM_BANK3	(U8500_ESRAM_BANK2 + U8500_ESRAM_BANK_SIZE)
-#define U8500_ESRAM_BANK4	(U8500_ESRAM_BANK3 + U8500_ESRAM_BANK_SIZE)
-/*
- * on V1 DMA uses 4KB for logical parameters position is right after the 64KB
- * reserved for security
- */
-#define U8500_ESRAM_DMA_LCPA_OFFSET     0x10000
-
-#define U8500_DMA_LCPA_BASE    (U8500_ESRAM_BANK0 + U8500_ESRAM_DMA_LCPA_OFFSET)
-
-/* This address fulfills the 256k alignment requirement of the lcla base */
-#define U8500_DMA_LCLA_BASE	U8500_ESRAM_BANK4
-
-#define U8500_PER3_BASE		0x80000000
-#define U8500_STM_BASE		0x80100000
-#define U8500_STM_REG_BASE	(U8500_STM_BASE + 0xF000)
-#define U8500_PER2_BASE		0x80110000
-#define U8500_PER1_BASE		0x80120000
-#define U8500_B2R2_BASE		0x80130000
-#define U8500_HSEM_BASE		0x80140000
-#define U8500_PER4_BASE		0x80150000
-#define U8500_TPIU_BASE		0x80190000
-#define U8500_ICN_BASE		0x81000000
-
-#define U8500_BOOT_ROM_BASE	0x90000000
-/* ASIC ID is at 0xbf4 offset within this region */
-#define U8500_ASIC_ID_BASE	0x9001D000
-
-#define U8500_PER6_BASE		0xa03c0000
-#define U8500_PER7_BASE		0xa03d0000
-#define U8500_PER5_BASE		0xa03e0000
-
-#define U8500_SVA_BASE		0xa0100000
-#define U8500_SIA_BASE		0xa0200000
-
-#define U8500_SGA_BASE		0xa0300000
-#define U8500_MCDE_BASE		0xa0350000
-#define U8500_DMA_BASE		0x801C0000	/* v1 */
-
-#define U8500_SBAG_BASE		0xa0390000
-
-#define U8500_SCU_BASE		0xa0410000
-#define U8500_GIC_CPU_BASE	0xa0410100
-#define U8500_TWD_BASE		0xa0410600
-#define U8500_GIC_DIST_BASE	0xa0411000
-#define U8500_L2CC_BASE		0xa0412000
-
-#define U8500_MODEM_I2C		0xb7e02000
-
-#define U8500_GPIO0_BASE	(U8500_PER1_BASE + 0xE000)
-#define U8500_GPIO1_BASE	(U8500_PER3_BASE + 0xE000)
-#define U8500_GPIO2_BASE	(U8500_PER2_BASE + 0xE000)
-#define U8500_GPIO3_BASE	(U8500_PER5_BASE + 0x1E000)
-
-#define U8500_UART0_BASE	(U8500_PER1_BASE + 0x0000)
-#define U8500_UART1_BASE	(U8500_PER1_BASE + 0x1000)
-
-/* per6 base addresses */
-#define U8500_RNG_BASE		(U8500_PER6_BASE + 0x0000)
-#define U8500_HASH0_BASE        (U8500_PER6_BASE + 0x1000)
-#define U8500_HASH1_BASE        (U8500_PER6_BASE + 0x2000)
-#define U8500_PKA_BASE		(U8500_PER6_BASE + 0x4000)
-#define U8500_PKAM_BASE		(U8500_PER6_BASE + 0x5100)
-#define U8500_MTU0_BASE		(U8500_PER6_BASE + 0x6000) /* v1 */
-#define U8500_MTU1_BASE		(U8500_PER6_BASE + 0x7000) /* v1 */
-#define U8500_CR_BASE		(U8500_PER6_BASE + 0x8000) /* v1 */
-#define U8500_CRYP0_BASE	(U8500_PER6_BASE + 0xa000)
-#define U8500_CRYP1_BASE	(U8500_PER6_BASE + 0xb000)
-#define U8500_CLKRST6_BASE	(U8500_PER6_BASE + 0xf000)
-
-/* per5 base addresses */
-#define U8500_USBOTG_BASE	(U8500_PER5_BASE + 0x00000)
-#define U8500_CLKRST5_BASE	(U8500_PER5_BASE + 0x1f000)
-
-/* per4 base addresses */
-#define U8500_BACKUPRAM0_BASE	(U8500_PER4_BASE + 0x00000)
-#define U8500_BACKUPRAM1_BASE	(U8500_PER4_BASE + 0x01000)
-#define U8500_RTT0_BASE		(U8500_PER4_BASE + 0x02000)
-#define U8500_RTT1_BASE		(U8500_PER4_BASE + 0x03000)
-#define U8500_RTC_BASE		(U8500_PER4_BASE + 0x04000)
-#define U8500_SCR_BASE		(U8500_PER4_BASE + 0x05000)
-#define U8500_DMC_BASE		(U8500_PER4_BASE + 0x06000)
-#define U8500_PRCMU_BASE	(U8500_PER4_BASE + 0x07000)
-#define U9540_DMC1_BASE		(U8500_PER4_BASE + 0x0A000)
-#define U8500_PRCMU_TCDM_BASE	(U8500_PER4_BASE + 0x68000)
-#define U8500_PRCMU_TCPM_BASE   (U8500_PER4_BASE + 0x60000)
-#define U8500_PRCMU_TIMER_3_BASE (U8500_PER4_BASE + 0x07338)
-#define U8500_PRCMU_TIMER_4_BASE (U8500_PER4_BASE + 0x07450)
-
-/* per3 base addresses */
-#define U8500_FSMC_BASE		(U8500_PER3_BASE + 0x0000)
-#define U8500_SSP0_BASE		(U8500_PER3_BASE + 0x2000)
-#define U8500_SSP1_BASE		(U8500_PER3_BASE + 0x3000)
-#define U8500_I2C0_BASE		(U8500_PER3_BASE + 0x4000)
-#define U8500_SDI2_BASE		(U8500_PER3_BASE + 0x5000)
-#define U8500_SKE_BASE		(U8500_PER3_BASE + 0x6000)
-#define U8500_UART2_BASE	(U8500_PER3_BASE + 0x7000)
-#define U8500_SDI5_BASE		(U8500_PER3_BASE + 0x8000)
-#define U8500_CLKRST3_BASE	(U8500_PER3_BASE + 0xf000)
-
-/* per2 base addresses */
-#define U8500_I2C3_BASE		(U8500_PER2_BASE + 0x0000)
-#define U8500_SPI2_BASE		(U8500_PER2_BASE + 0x1000)
-#define U8500_SPI1_BASE		(U8500_PER2_BASE + 0x2000)
-#define U8500_PWL_BASE		(U8500_PER2_BASE + 0x3000)
-#define U8500_SDI4_BASE		(U8500_PER2_BASE + 0x4000)
-#define U8500_MSP2_BASE		(U8500_PER2_BASE + 0x7000)
-#define U8500_SDI1_BASE		(U8500_PER2_BASE + 0x8000)
-#define U8500_SDI3_BASE		(U8500_PER2_BASE + 0x9000)
-#define U8500_SPI0_BASE		(U8500_PER2_BASE + 0xa000)
-#define U8500_HSIR_BASE		(U8500_PER2_BASE + 0xb000)
-#define U8500_HSIT_BASE		(U8500_PER2_BASE + 0xc000)
-#define U8500_CLKRST2_BASE	(U8500_PER2_BASE + 0xf000)
-
-/* per1 base addresses */
-#define U8500_I2C1_BASE		(U8500_PER1_BASE + 0x2000)
-#define U8500_MSP0_BASE		(U8500_PER1_BASE + 0x3000)
-#define U8500_MSP1_BASE		(U8500_PER1_BASE + 0x4000)
-#define U8500_MSP3_BASE		(U8500_PER1_BASE + 0x5000)
-#define U8500_SDI0_BASE		(U8500_PER1_BASE + 0x6000)
-#define U8500_I2C2_BASE		(U8500_PER1_BASE + 0x8000)
-#define U8500_SPI3_BASE		(U8500_PER1_BASE + 0x9000)
-#define U8500_I2C4_BASE		(U8500_PER1_BASE + 0xa000)
-#define U8500_SLIM0_BASE	(U8500_PER1_BASE + 0xb000)
-#define U8500_CLKRST1_BASE	(U8500_PER1_BASE + 0xf000)
-
-#define U8500_SHRM_GOP_INTERRUPT_BASE	0xB7C00040
-
-#define U8500_GPIOBANK0_BASE	U8500_GPIO0_BASE
-#define U8500_GPIOBANK1_BASE	(U8500_GPIO0_BASE + 0x80)
-#define U8500_GPIOBANK2_BASE	U8500_GPIO1_BASE
-#define U8500_GPIOBANK3_BASE	(U8500_GPIO1_BASE + 0x80)
-#define U8500_GPIOBANK4_BASE	(U8500_GPIO1_BASE + 0x100)
-#define U8500_GPIOBANK5_BASE	(U8500_GPIO1_BASE + 0x180)
-#define U8500_GPIOBANK6_BASE	U8500_GPIO2_BASE
-#define U8500_GPIOBANK7_BASE	(U8500_GPIO2_BASE + 0x80)
-#define U8500_GPIOBANK8_BASE	U8500_GPIO3_BASE
-
-#define U8500_MCDE_SIZE		0x1000
-#define U8500_DSI_LINK_SIZE	0x1000
-#define U8500_DSI_LINK1_BASE	(U8500_MCDE_BASE + U8500_MCDE_SIZE)
-#define U8500_DSI_LINK2_BASE	(U8500_DSI_LINK1_BASE + U8500_DSI_LINK_SIZE)
-#define U8500_DSI_LINK3_BASE	(U8500_DSI_LINK2_BASE + U8500_DSI_LINK_SIZE)
-#define U8500_DSI_LINK_COUNT	0x3
-
-/* Modem and APE physical addresses */
-#define U8500_MODEM_BASE	0xe000000
-#define U8500_APE_BASE		0x6000000
-
-/* SoC identification number information */
-#define U8500_BB_UID_BASE      (U8500_BACKUPRAM1_BASE + 0xFC0)
-
-/* Offsets to specific addresses in some IP blocks for DMA */
-#define MSP_TX_RX_REG_OFFSET	0
-#define CRYP1_RX_REG_OFFSET	0x10
-#define CRYP1_TX_REG_OFFSET	0x8
-#define HASH1_TX_REG_OFFSET	0x4
-
-/*
- * Macros to get at IO space when running virtually
- * We dont map all the peripherals, let ioremap do
- * this for us. We map only very basic peripherals here.
- */
-#define U8500_IO_VIRTUAL	0xf0000000
-#define U8500_IO_PHYSICAL	0xa0000000
-/* This is where we map in the ROM to check ASIC IDs */
-#define UX500_VIRT_ROM		IOMEM(0xf0000000)
-
-/* This macro is used in assembly, so no cast */
-#define IO_ADDRESS(x)           \
-	(((x) & 0x0fffffff) + (((x) >> 4) & 0x0f000000) + U8500_IO_VIRTUAL)
-
-/* typesafe io address */
-#define __io_address(n)		IOMEM(IO_ADDRESS(n))
-
-/* Used by some plat-nomadik code */
-#define io_p2v(n)		__io_address(n)
-
-#define ARRAY_AND_SIZE(x)	(x), ARRAY_SIZE(x)
-
-#endif

arch/arm/mach-ux500/platsmp.c

@@ -20,8 +20,6 @@
 #include <asm/smp_plat.h>
 #include <asm/smp_scu.h>
 
-#include "db8500-regs.h"
-
 /* Magic triggers in backup RAM */
 #define UX500_CPU1_JUMPADDR_OFFSET 0x1FF4
 #define UX500_CPU1_WAKEMAGIC_OFFSET 0x1FF0

arch/arm/mach-ux500/pm.c

@@ -16,8 +16,6 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 
-#include "db8500-regs.h"
-
 /* ARM WFI Standby signal register */
 #define PRCM_ARM_WFI_STANDBY    (prcmu_base + 0x130)
 #define PRCM_ARM_WFI_STANDBY_WFI0		0x08
@@ -124,7 +122,7 @@ bool prcmu_pending_irq(void)
 }
 
 /*
- * This function checks if the specified cpu is in in WFI. It's usage
+ * This function checks if the specified cpu is in WFI. It's usage
  * makes sense only if the gic is decoupled with the db8500_prcmu_gic_decouple
  * function. Of course passing smp_processor_id() to this function will
  * always return false...

arch/arm64/Kconfig.platforms

@@ -252,8 +252,6 @@ config ARCH_REALTEK
 
 config ARCH_RENESAS
 	bool "Renesas SoC Platforms"
-	select GPIOLIB
-	select PINCTRL
 	help
 	  This enables support for the ARMv8 based Renesas SoCs.
 

arch/riscv/Kconfig.socs

@@ -7,6 +7,11 @@ config SOC_MICROCHIP_POLARFIRE
 	help
 	  This enables support for Microchip PolarFire SoC platforms.
 
+config ARCH_RENESAS
+	bool "Renesas RISC-V SoCs"
+	help
+	  This enables support for the RISC-V based Renesas SoCs.
+
 config SOC_SIFIVE
 	bool "SiFive SoCs"
 	select SERIAL_SIFIVE if TTY

drivers/soc/renesas/Kconfig

@@ -2,6 +2,8 @@
 menuconfig SOC_RENESAS
 	bool "Renesas SoC driver support" if COMPILE_TEST && !ARCH_RENESAS
 	default y if ARCH_RENESAS
+	select GPIOLIB
+	select PINCTRL
 	select SOC_BUS
 
 if SOC_RENESAS

drivers/soc/ux500/ux500-soc-id.c

@@ -167,20 +167,18 @@ ATTRIBUTE_GROUPS(ux500_soc);
 static const char *db8500_read_soc_id(struct device_node *backupram)
 {
 	void __iomem *base;
-	void __iomem *uid;
 	const char *retstr;
+	u32 uid[5];
 
 	base = of_iomap(backupram, 0);
 	if (!base)
 		return NULL;
-	uid = base + 0x1fc0;
+	memcpy_fromio(uid, base + 0x1fc0, sizeof(uid));
 
 	/* Throw these device-specific numbers into the entropy pool */
-	add_device_randomness(uid, 0x14);
+	add_device_randomness(uid, sizeof(uid));
 	retstr = kasprintf(GFP_KERNEL, "%08x%08x%08x%08x%08x",
-			 readl((u32 *)uid+0),
-			 readl((u32 *)uid+1), readl((u32 *)uid+2),
-			 readl((u32 *)uid+3), readl((u32 *)uid+4));
+			   uid[0], uid[1], uid[2], uid[3], uid[4]);
 	iounmap(base);
 	return retstr;
 }