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

Pull ARM SoC cleanups from Olof Johansson:
 "This is a good healthy set of various code removals.  Total net delta
  is 8100 lines removed.

  Among the larger cleanups are:

   - Removal of old Samsung S3C DMA infrastructure by Arnd
   - Removal of the non-DT version of the 'lager' board by Magnus Damm
   - General stale code removal on OMAP and Davinci by Rickard Strandqvist
   - Removal of non-DT support on am3517 platforms by Tony Lindgren

  ... plus several other cleanups of various platforms across the board"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (47 commits)
  ARM: sirf: drop redundant function and marco declaration
  arm: omap: specify PMUs are for ARMv7 CPUs
  arm: shmobile: specify PMUs are for ARMv7 CPUs
  arm: iop: specify PMUs are for XScale CPUs
  arm: pxa: specify PMUs are for XScale CPUs
  arm: realview: specify PMU types
  ARM: SAMSUNG: remove unused DMA infrastructure
  ARM: OMAP3: Add back Kconfig option MACH_OMAP3517EVM for ASoC
  ARM: davinci: Remove CDCE949 driver
  ARM: at91: remove useless at91rm9200_set_type()
  ARM: at91: remove useless at91rm9200_dt_initialize()
  ARM: at91: move debug-macro.S into the common space
  ARM: at91: remove useless at91_sysirq_mask_rtx
  ARM: at91: remove useless config MACH_AT91SAM9_DT
  ARM: at91: remove useless config MACH_AT91RM9200_DT
  ARM: at91: remove unused mach/memory.h
  ARM: at91: remove useless header file includes
  ARM: at91: remove unneeded header file
  rtc: at91/Kconfig: remove useless options
  ARM: at91/Documentation: add a README for Atmel SoCs
  ...

18 files changed, 4 insertions, 335 deletions

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 2395c68b3e32..cec0fb5d621a 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -174,14 +174,6 @@ config SOC_AT91SAM9N12
 # ----------------------------------------------------------
 endif # SOC_SAM_V4_V5
 
-config MACH_AT91RM9200_DT
-	def_bool SOC_AT91RM9200
-
-config MACH_AT91SAM9_DT
-	def_bool SOC_AT91SAM9
-
-# ----------------------------------------------------------
-
 comment "AT91 Feature Selections"
 
 config AT91_SLOW_CLOCK
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 7b6424d40764..8ef7d9a2e855 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the linux kernel.
 #
 
-obj-y		:= setup.o sysirq_mask.o
+obj-y		:= setup.o
 
 obj-$(CONFIG_SOC_AT91SAM9)	+= sam9_smc.o
 
@@ -19,8 +19,8 @@ obj-$(CONFIG_SOC_SAMA5D3)	+= sama5d3.o
 obj-$(CONFIG_SOC_SAMA5D4)	+= sama5d4.o
 
 # AT91SAM board with device-tree
-obj-$(CONFIG_MACH_AT91RM9200_DT) += board-dt-rm9200.o
-obj-$(CONFIG_MACH_AT91SAM9_DT) += board-dt-sam9.o
+obj-$(CONFIG_SOC_AT91RM9200) += board-dt-rm9200.o
+obj-$(CONFIG_SOC_AT91SAM9) += board-dt-sam9.o
 
 # SAMA5 board with device-tree
 obj-$(CONFIG_SOC_SAMA5)		+= board-dt-sama5.o
diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index 78137c24d90b..34e2abe82ae4 100644
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -51,8 +51,6 @@ static void __init at91sam9260_map_io(void)
 static void __init at91sam9260_initialize(void)
 {
 	arm_pm_idle = at91sam9_idle;
-
-	at91_sysirq_mask_rtt(AT91SAM9260_BASE_RTT);
 }
 
 AT91_SOC_START(at91sam9260)
diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c
index d29953ecb0c4..47878b849975 100644
--- a/arch/arm/mach-at91/at91sam9261.c
+++ b/arch/arm/mach-at91/at91sam9261.c
@@ -32,8 +32,6 @@ static void __init at91sam9261_map_io(void)
 static void __init at91sam9261_initialize(void)
 {
 	arm_pm_idle = at91sam9_idle;
-
-	at91_sysirq_mask_rtt(AT91SAM9261_BASE_RTT);
 }
 
 AT91_SOC_START(at91sam9261)
diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c
index e7ad14864083..aabcb66145d0 100644
--- a/arch/arm/mach-at91/at91sam9263.c
+++ b/arch/arm/mach-at91/at91sam9263.c
@@ -29,9 +29,6 @@ static void __init at91sam9263_map_io(void)
 static void __init at91sam9263_initialize(void)
 {
 	arm_pm_idle = at91sam9_idle;
-
-	at91_sysirq_mask_rtt(AT91SAM9263_BASE_RTT0);
-	at91_sysirq_mask_rtt(AT91SAM9263_BASE_RTT1);
 }
 
 AT91_SOC_START(at91sam9263)
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index b6117bea9a6f..000166777a8d 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -11,7 +11,6 @@
  */
 
 #include <asm/system_misc.h>
-#include <asm/irq.h>
 #include <mach/hardware.h>
 
 #include "soc.h"
@@ -29,9 +28,6 @@ static void __init at91sam9g45_map_io(void)
 static void __init at91sam9g45_initialize(void)
 {
 	arm_pm_idle = at91sam9_idle;
-
-	at91_sysirq_mask_rtc(AT91SAM9G45_BASE_RTC);
-	at91_sysirq_mask_rtt(AT91SAM9G45_BASE_RTT);
 }
 
 AT91_SOC_START(at91sam9g45)
diff --git a/arch/arm/mach-at91/at91sam9n12.c b/arch/arm/mach-at91/at91sam9n12.c
index dee569b1987e..0135f868ea4f 100644
--- a/arch/arm/mach-at91/at91sam9n12.c
+++ b/arch/arm/mach-at91/at91sam9n12.c
@@ -21,12 +21,6 @@ static void __init at91sam9n12_map_io(void)
 	at91_init_sram(0, AT91SAM9N12_SRAM_BASE, AT91SAM9N12_SRAM_SIZE);
 }
 
-static void __init at91sam9n12_initialize(void)
-{
-	at91_sysirq_mask_rtc(AT91SAM9N12_BASE_RTC);
-}
-
 AT91_SOC_START(at91sam9n12)
 	.map_io = at91sam9n12_map_io,
-	.init = at91sam9n12_initialize,
 AT91_SOC_END
diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c
index f25b9aec9c50..1babfb27694a 100644
--- a/arch/arm/mach-at91/at91sam9rl.c
+++ b/arch/arm/mach-at91/at91sam9rl.c
@@ -10,7 +10,6 @@
  */
 
 #include <asm/system_misc.h>
-#include <asm/irq.h>
 #include <mach/cpu.h>
 #include <mach/at91_dbgu.h>
 #include <mach/hardware.h>
@@ -42,9 +41,6 @@ static void __init at91sam9rl_map_io(void)
 static void __init at91sam9rl_initialize(void)
 {
 	arm_pm_idle = at91sam9_idle;
-
-	at91_sysirq_mask_rtc(AT91SAM9RL_BASE_RTC);
-	at91_sysirq_mask_rtt(AT91SAM9RL_BASE_RTT);
 }
 
 AT91_SOC_START(at91sam9rl)
diff --git a/arch/arm/mach-at91/at91sam9x5.c b/arch/arm/mach-at91/at91sam9x5.c
index f0d5a69a7237..aa17520ccb0a 100644
--- a/arch/arm/mach-at91/at91sam9x5.c
+++ b/arch/arm/mach-at91/at91sam9x5.c
@@ -21,16 +21,6 @@ static void __init at91sam9x5_map_io(void)
 	at91_init_sram(0, AT91SAM9X5_SRAM_BASE, AT91SAM9X5_SRAM_SIZE);
 }
 
-static void __init at91sam9x5_initialize(void)
-{
-	at91_sysirq_mask_rtc(AT91SAM9X5_BASE_RTC);
-}
-
-/* --------------------------------------------------------------------
- *  Interrupt initialization
- * -------------------------------------------------------------------- */
-
 AT91_SOC_START(at91sam9x5)
 	.map_io = at91sam9x5_map_io,
-	.init = at91sam9x5_initialize,
 AT91_SOC_END
diff --git a/arch/arm/mach-at91/board-dt-rm9200.c b/arch/arm/mach-at91/board-dt-rm9200.c
index 76dfe8f9af50..a15ab6f8de00 100644
--- a/arch/arm/mach-at91/board-dt-rm9200.c
+++ b/arch/arm/mach-at91/board-dt-rm9200.c
@@ -38,6 +38,6 @@ static const char *at91rm9200_dt_board_compat[] __initdata = {
 DT_MACHINE_START(at91rm9200_dt, "Atmel AT91RM9200 (Device Tree)")
 	.init_time      = at91rm9200_dt_timer_init,
 	.map_io		= at91_map_io,
-	.init_early	= at91rm9200_dt_initialize,
+	.init_early	= at91_dt_initialize,
 	.dt_compat	= at91rm9200_dt_board_compat,
 MACHINE_END
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index d53324210adf..54f3837a0a4d 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -21,14 +21,8 @@ extern void __init at91_init_sram(int bank, unsigned long base,
 				  unsigned int length);
 
  /* Processors */
-extern void __init at91rm9200_set_type(int type);
-extern void __init at91rm9200_dt_initialize(void);
 extern void __init at91_dt_initialize(void);
 
- /* Interrupts */
-extern void __init at91_sysirq_mask_rtc(u32 rtc_base);
-extern void __init at91_sysirq_mask_rtt(u32 rtt_base);
-
  /* Timer */
 extern void at91rm9200_timer_init(void);
 
diff --git a/arch/arm/mach-at91/include/mach/at91_pio.h b/arch/arm/mach-at91/include/mach/at91_pio.h
deleted file mode 100644
index 7b7366253ceb..000000000000
--- a/arch/arm/mach-at91/include/mach/at91_pio.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * arch/arm/mach-at91/include/mach/at91_pio.h
- *
- * Copyright (C) 2005 Ivan Kokshaysky
- * Copyright (C) SAN People
- *
- * Parallel I/O Controller (PIO) - System peripherals registers.
- * Based on AT91RM9200 datasheet revision E.
- *
- * 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.
- */
-
-#ifndef AT91_PIO_H
-#define AT91_PIO_H
-
-#define PIO_PER		0x00	/* Enable Register */
-#define PIO_PDR		0x04	/* Disable Register */
-#define PIO_PSR		0x08	/* Status Register */
-#define PIO_OER		0x10	/* Output Enable Register */
-#define PIO_ODR		0x14	/* Output Disable Register */
-#define PIO_OSR		0x18	/* Output Status Register */
-#define PIO_IFER	0x20	/* Glitch Input Filter Enable */
-#define PIO_IFDR	0x24	/* Glitch Input Filter Disable */
-#define PIO_IFSR	0x28	/* Glitch Input Filter Status */
-#define PIO_SODR	0x30	/* Set Output Data Register */
-#define PIO_CODR	0x34	/* Clear Output Data Register */
-#define PIO_ODSR	0x38	/* Output Data Status Register */
-#define PIO_PDSR	0x3c	/* Pin Data Status Register */
-#define PIO_IER		0x40	/* Interrupt Enable Register */
-#define PIO_IDR		0x44	/* Interrupt Disable Register */
-#define PIO_IMR		0x48	/* Interrupt Mask Register */
-#define PIO_ISR		0x4c	/* Interrupt Status Register */
-#define PIO_MDER	0x50	/* Multi-driver Enable Register */
-#define PIO_MDDR	0x54	/* Multi-driver Disable Register */
-#define PIO_MDSR	0x58	/* Multi-driver Status Register */
-#define PIO_PUDR	0x60	/* Pull-up Disable Register */
-#define PIO_PUER	0x64	/* Pull-up Enable Register */
-#define PIO_PUSR	0x68	/* Pull-up Status Register */
-#define PIO_ASR		0x70	/* Peripheral A Select Register */
-#define PIO_ABCDSR1	0x70	/* Peripheral ABCD Select Register 1 [some sam9 only] */
-#define PIO_BSR		0x74	/* Peripheral B Select Register */
-#define PIO_ABCDSR2	0x74	/* Peripheral ABCD Select Register 2 [some sam9 only] */
-#define PIO_ABSR	0x78	/* AB Status Register */
-#define PIO_IFSCDR	0x80	/* Input Filter Slow Clock Disable Register */
-#define PIO_IFSCER	0x84	/* Input Filter Slow Clock Enable Register */
-#define PIO_IFSCSR	0x88	/* Input Filter Slow Clock Status Register */
-#define PIO_SCDR	0x8c	/* Slow Clock Divider Debouncing Register */
-#define		PIO_SCDR_DIV	(0x3fff <<  0)		/* Slow Clock Divider Mask */
-#define PIO_PPDDR	0x90	/* Pad Pull-down Disable Register */
-#define PIO_PPDER	0x94	/* Pad Pull-down Enable Register */
-#define PIO_PPDSR	0x98	/* Pad Pull-down Status Register */
-#define PIO_OWER	0xa0	/* Output Write Enable Register */
-#define PIO_OWDR	0xa4	/* Output Write Disable Register */
-#define PIO_OWSR	0xa8	/* Output Write Status Register */
-#define PIO_AIMER	0xb0	/* Additional Interrupt Modes Enable Register */
-#define PIO_AIMDR	0xb4	/* Additional Interrupt Modes Disable Register */
-#define PIO_AIMMR	0xb8	/* Additional Interrupt Modes Mask Register */
-#define PIO_ESR		0xc0	/* Edge Select Register */
-#define PIO_LSR		0xc4	/* Level Select Register */
-#define PIO_ELSR	0xc8	/* Edge/Level Status Register */
-#define PIO_FELLSR	0xd0	/* Falling Edge/Low Level Select Register */
-#define PIO_REHLSR	0xd4	/* Rising Edge/ High Level Select Register */
-#define PIO_FRLHSR	0xd8	/* Fall/Rise - Low/High Status Register */
-#define PIO_SCHMITT	0x100	/* Schmitt Trigger Register */
-
-#define ABCDSR_PERIPH_A	0x0
-#define ABCDSR_PERIPH_B	0x1
-#define ABCDSR_PERIPH_C	0x2
-#define ABCDSR_PERIPH_D	0x3
-
-#define SAMA5D3_PIO_DRIVER1		0x118  /*PIO Driver 1 register offset*/
-#define SAMA5D3_PIO_DRIVER2		0x11C  /*PIO Driver 2 register offset*/
-
-#define AT91SAM9X5_PIO_DRIVER1	0x114  /*PIO Driver 1 register offset*/
-#define AT91SAM9X5_PIO_DRIVER2	0x118  /*PIO Driver 2 register offset*/
-
-#endif
diff --git a/arch/arm/mach-at91/include/mach/at91_rtt.h b/arch/arm/mach-at91/include/mach/at91_rtt.h
deleted file mode 100644
index 7ec75de8bbb6..000000000000
--- a/arch/arm/mach-at91/include/mach/at91_rtt.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * arch/arm/mach-at91/include/mach/at91_rtt.h
- *
- * Copyright (C) 2007 Andrew Victor
- * Copyright (C) 2007 Atmel Corporation.
- *
- * Real-time Timer (RTT) - System peripherals regsters.
- * Based on AT91SAM9261 datasheet revision D.
- *
- * 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.
- */
-
-#ifndef AT91_RTT_H
-#define AT91_RTT_H
-
-#define AT91_RTT_MR		0x00			/* Real-time Mode Register */
-#define		AT91_RTT_RTPRES		(0xffff << 0)		/* Real-time Timer Prescaler Value */
-#define		AT91_RTT_ALMIEN		(1 << 16)		/* Alarm Interrupt Enable */
-#define		AT91_RTT_RTTINCIEN	(1 << 17)		/* Real Time Timer Increment Interrupt Enable */
-#define		AT91_RTT_RTTRST		(1 << 18)		/* Real Time Timer Restart */
-
-#define AT91_RTT_AR		0x04			/* Real-time Alarm Register */
-#define		AT91_RTT_ALMV		(0xffffffff)		/* Alarm Value */
-
-#define AT91_RTT_VR		0x08			/* Real-time Value Register */
-#define		AT91_RTT_CRTV		(0xffffffff)		/* Current Real-time Value */
-
-#define AT91_RTT_SR		0x0c			/* Real-time Status Register */
-#define		AT91_RTT_ALMS		(1 << 0)		/* Real-time Alarm Status */
-#define		AT91_RTT_RTTINC		(1 << 1)		/* Real-time Timer Increment */
-
-#endif
diff --git a/arch/arm/mach-at91/include/mach/debug-macro.S b/arch/arm/mach-at91/include/mach/debug-macro.S
deleted file mode 100644
index 2103a90f2261..000000000000
--- a/arch/arm/mach-at91/include/mach/debug-macro.S
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * arch/arm/mach-at91/include/mach/debug-macro.S
- *
- *  Copyright (C) 2003-2005 SAN People
- *
- * Debugging macro include header
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
-*/
-
-#include <mach/hardware.h>
-#include <mach/at91_dbgu.h>
-
-#if defined(CONFIG_AT91_DEBUG_LL_DBGU0)
-#define AT91_DBGU AT91_BASE_DBGU0
-#elif defined(CONFIG_AT91_DEBUG_LL_DBGU1)
-#define AT91_DBGU AT91_BASE_DBGU1
-#else
-/* On sama5d4, use USART3 as low level serial console */
-#define AT91_DBGU SAMA5D4_BASE_USART3
-#endif
-
-	.macro	addruart, rp, rv, tmp
-	ldr	\rp, =AT91_DBGU				@ System peripherals (phys address)
-	ldr	\rv, =AT91_IO_P2V(AT91_DBGU)		@ System peripherals (virt address)
-	.endm
-
-	.macro	senduart,rd,rx
-	strb	\rd, [\rx, #(AT91_DBGU_THR)]		@ Write to Transmitter Holding Register
-	.endm
-
-	.macro	waituart,rd,rx
-1001:	ldr	\rd, [\rx, #(AT91_DBGU_SR)]		@ Read Status Register
-	tst	\rd, #AT91_DBGU_TXRDY			@ DBGU_TXRDY = 1 when ready to transmit
-	beq	1001b
-	.endm
-
-	.macro	busyuart,rd,rx
-1001:	ldr	\rd, [\rx, #(AT91_DBGU_SR)]		@ Read Status Register
-	tst	\rd, #AT91_DBGU_TXEMPTY			@ DBGU_TXEMPTY = 1 when transmission complete
-	beq	1001b
-	.endm
-
diff --git a/arch/arm/mach-at91/include/mach/memory.h b/arch/arm/mach-at91/include/mach/memory.h
deleted file mode 100644
index 401c207f2f39..000000000000
--- a/arch/arm/mach-at91/include/mach/memory.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * arch/arm/mach-at91/include/mach/memory.h
- *
- *  Copyright (C) 2004 SAN People
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#ifndef __ASM_ARCH_MEMORY_H
-#define __ASM_ARCH_MEMORY_H
-
-#include <mach/hardware.h>
-
-#endif
diff --git a/arch/arm/mach-at91/sama5d3.c b/arch/arm/mach-at91/sama5d3.c
index 3d775d08de08..ae58feada72b 100644
--- a/arch/arm/mach-at91/sama5d3.c
+++ b/arch/arm/mach-at91/sama5d3.c
@@ -30,12 +30,6 @@ static void __init sama5d3_map_io(void)
 	at91_init_sram(0, SAMA5D3_SRAM_BASE, SAMA5D3_SRAM_SIZE);
 }
 
-static void __init sama5d3_initialize(void)
-{
-	at91_sysirq_mask_rtc(SAMA5D3_BASE_RTC);
-}
-
 AT91_SOC_START(sama5d3)
 	.map_io = sama5d3_map_io,
-	.init = sama5d3_initialize,
 AT91_SOC_END
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index ce25e85720fb..e3c21b458bb8 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -31,17 +31,6 @@ struct at91_init_soc __initdata at91_boot_soc;
 struct at91_socinfo at91_soc_initdata;
 EXPORT_SYMBOL(at91_soc_initdata);
 
-void __init at91rm9200_set_type(int type)
-{
-	if (type == ARCH_REVISON_9200_PQFP)
-		at91_soc_initdata.subtype = AT91_SOC_RM9200_PQFP;
-	else
-		at91_soc_initdata.subtype = AT91_SOC_RM9200_BGA;
-
-	pr_info("filled in soc subtype: %s\n",
-		at91_get_soc_subtype(&at91_soc_initdata));
-}
-
 void __iomem *at91_ramc_base[2];
 EXPORT_SYMBOL_GPL(at91_ramc_base);
 
@@ -429,13 +418,6 @@ static void at91_dt_ramc(void)
 	at91_pm_set_standby(standby);
 }
 
-void __init at91rm9200_dt_initialize(void)
-{
-	at91_dt_ramc();
-
-	at91_boot_soc.init();
-}
-
 void __init at91_dt_initialize(void)
 {
 	at91_dt_ramc();
diff --git a/arch/arm/mach-at91/sysirq_mask.c b/arch/arm/mach-at91/sysirq_mask.c
deleted file mode 100644
index f8bc3511a8c8..000000000000
--- a/arch/arm/mach-at91/sysirq_mask.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * sysirq_mask.c - System-interrupt masking
- *
- * Copyright (C) 2013 Johan Hovold <jhovold@gmail.com>
- *
- * Functions to disable system interrupts from backup-powered peripherals.
- *
- * The RTC and RTT-peripherals are generally powered by backup power (VDDBU)
- * and are not reset on wake-up, user, watchdog or software reset. This means
- * that their interrupts may be enabled during early boot (e.g. after a user
- * reset).
- *
- * As the RTC and RTT share the system-interrupt line with the PIT, an
- * interrupt occurring before a handler has been installed would lead to the
- * system interrupt being disabled and prevent the system from booting.
- *
- * 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/io.h>
-#include <mach/at91_rtt.h>
-
-#include "generic.h"
-
-#define AT91_RTC_IDR		0x24	/* Interrupt Disable Register */
-#define AT91_RTC_IMR		0x28	/* Interrupt Mask Register */
-#define AT91_RTC_IRQ_MASK	0x1f	/* Available IRQs mask */
-
-void __init at91_sysirq_mask_rtc(u32 rtc_base)
-{
-	void __iomem *base;
-
-	base = ioremap(rtc_base, 64);
-	if (!base)
-		return;
-
-	/*
-	 * sam9x5 SoCs have the following errata:
-	 * "RTC: Interrupt Mask Register cannot be used
-	 *  Interrupt Mask Register read always returns 0."
-	 *
-	 * Hence we're not relying on IMR values to disable
-	 * interrupts.
-	 */
-	writel_relaxed(AT91_RTC_IRQ_MASK, base + AT91_RTC_IDR);
-	(void)readl_relaxed(base + AT91_RTC_IMR);	/* flush */
-
-	iounmap(base);
-}
-
-void __init at91_sysirq_mask_rtt(u32 rtt_base)
-{
-	void __iomem *base;
-	void __iomem *reg;
-	u32 mode;
-
-	base = ioremap(rtt_base, 16);
-	if (!base)
-		return;
-
-	reg = base + AT91_RTT_MR;
-
-	mode = readl_relaxed(reg);
-	if (mode & (AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN)) {
-		pr_info("AT91: Disabling rtt irq\n");
-		mode &= ~(AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN);
-		writel_relaxed(mode, reg);
-		(void)readl_relaxed(reg);			/* flush */
-	}
-
-	iounmap(base);
-}