bcm2836 SoC support (used in Raspberry Pi 2 model B)

The bcm2835 and bcm2836 are essentially identical, except:
- The CPU is an ARM1176 v.s. a quad-core Cortex-A7.
- The physical address of many IO controllers has moved.

Rather than introducing a whole new bcm2836 value for $(SOC) or $(ARCH),
update the existing bcm2835 code to handle the minor differences, and
plumb it into the ARMv7 CPU architecture.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>

5 files changed, 25 insertions, 4 deletions

diff --git a/arch/arm/include/asm/arch-bcm2835/gpio.h b/arch/arm/include/asm/arch-bcm2835/gpio.h
index db42896..c8ef8f5 100644
--- a/arch/arm/include/asm/arch-bcm2835/gpio.h
+++ b/arch/arm/include/asm/arch-bcm2835/gpio.h
@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2012 Vikram Narayananan
  * <vikram186@gmail.com>
+ * (C) Copyright 2012,2015 Stephen Warren
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */
@@ -8,7 +9,11 @@
 #ifndef _BCM2835_GPIO_H_
 #define _BCM2835_GPIO_H_
 
+#ifdef CONFIG_BCM2836
+#define BCM2835_GPIO_BASE		0x3f200000
+#else
 #define BCM2835_GPIO_BASE		0x20200000
+#endif
 #define BCM2835_GPIO_COUNT		54
 
 #define BCM2835_GPIO_FSEL_MASK		0x7
diff --git a/arch/arm/include/asm/arch-bcm2835/mbox.h b/arch/arm/include/asm/arch-bcm2835/mbox.h
index 88d2ec1..c4bbaca 100644
--- a/arch/arm/include/asm/arch-bcm2835/mbox.h
+++ b/arch/arm/include/asm/arch-bcm2835/mbox.h
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2012 Stephen Warren
+ * (C) Copyright 2012,2015 Stephen Warren
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */
@@ -38,7 +38,11 @@
 
 /* Raw mailbox HW */
 
+#ifdef CONFIG_BCM2836
+#define BCM2835_MBOX_PHYSADDR	0x3f00b880
+#else
 #define BCM2835_MBOX_PHYSADDR	0x2000b880
+#endif
 
 struct bcm2835_mbox_regs {
 	u32 read;
diff --git a/arch/arm/include/asm/arch-bcm2835/sdhci.h b/arch/arm/include/asm/arch-bcm2835/sdhci.h
index da4d5cd..2a21ccb 100644
--- a/arch/arm/include/asm/arch-bcm2835/sdhci.h
+++ b/arch/arm/include/asm/arch-bcm2835/sdhci.h
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2012 Stephen Warren
+ * (C) Copyright 2012,2015 Stephen Warren
  *
  * SPDX-License-Identifier:	GPL-2.0
  */
@@ -7,7 +7,11 @@
 #ifndef _BCM2835_SDHCI_H_
 #define _BCM2835_SDHCI_H_
 
+#ifdef CONFIG_BCM2836
+#define BCM2835_SDHCI_BASE 0x3f300000
+#else
 #define BCM2835_SDHCI_BASE 0x20300000
+#endif
 
 int bcm2835_sdhci_init(u32 regbase, u32 emmc_freq);
 
diff --git a/arch/arm/include/asm/arch-bcm2835/timer.h b/arch/arm/include/asm/arch-bcm2835/timer.h
index 2d7cfe5..fc7aec7 100644
--- a/arch/arm/include/asm/arch-bcm2835/timer.h
+++ b/arch/arm/include/asm/arch-bcm2835/timer.h
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2012 Stephen Warren
+ * (C) Copyright 2012,2015 Stephen Warren
  *
  * SPDX-License-Identifier:	GPL-2.0
  */
@@ -7,7 +7,11 @@
 #ifndef _BCM2835_TIMER_H
 #define _BCM2835_TIMER_H
 
+#ifdef CONFIG_BCM2836
+#define BCM2835_TIMER_PHYSADDR	0x3f003000
+#else
 #define BCM2835_TIMER_PHYSADDR	0x20003000
+#endif
 
 struct bcm2835_timer_regs {
 	u32 cs;
diff --git a/arch/arm/include/asm/arch-bcm2835/wdog.h b/arch/arm/include/asm/arch-bcm2835/wdog.h
index f369ab5..beb6a08 100644
--- a/arch/arm/include/asm/arch-bcm2835/wdog.h
+++ b/arch/arm/include/asm/arch-bcm2835/wdog.h
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2012 Stephen Warren
+ * (C) Copyright 2012,2015 Stephen Warren
  *
  * SPDX-License-Identifier:	GPL-2.0
  */
@@ -7,7 +7,11 @@
 #ifndef _BCM2835_TIMER_H
 #define _BCM2835_TIMER_H
 
+#ifdef CONFIG_BCM2836
+#define BCM2835_WDOG_PHYSADDR			0x3f100000
+#else
 #define BCM2835_WDOG_PHYSADDR			0x20100000
+#endif
 
 struct bcm2835_wdog_regs {
 	u32 unknown0[7];