RealView: Add support for the RealView/PBX platform

This is a RealView platform supporting core tiles with ARM11MPCore,
Cortex-A8 or Cortex-A9 (multicore) processors. It has support for MMC,
CompactFlash, PCI-E.
Signed-off-by: Colin Tuckley <colin.tuckley@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm/Kconfig

@@ -859,7 +859,7 @@ source "kernel/time/Kconfig"
 
 config SMP
 	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || MACH_REALVIEW_PB11MP)
+	depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX)
 	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one CPU. If you have
@@ -916,7 +916,7 @@ config HOTPLUG_CPU
 
 config LOCAL_TIMERS
 	bool "Use local timer interrupts"
-	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || REALVIEW_EB_A9MP)
+	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || REALVIEW_EB_A9MP || MACH_REALVIEW_PBX)
 	default y
 	help
 	  Enable support for local timers on SMP platforms, rather then the

arch/arm/include/asm/hardware/cache-l2x0.h

@@ -24,6 +24,8 @@
 #define L2X0_CACHE_TYPE			0x004
 #define L2X0_CTRL			0x100
 #define L2X0_AUX_CTRL			0x104
+#define L2X0_TAG_LATENCY_CTRL		0x108
+#define L2X0_DATA_LATENCY_CTRL		0x10C
 #define L2X0_EVENT_CNT_CTRL		0x200
 #define L2X0_EVENT_CNT1_CFG		0x204
 #define L2X0_EVENT_CNT0_CFG		0x208

arch/arm/mach-realview/Kconfig

@@ -58,6 +58,13 @@ config MACH_REALVIEW_PBA8
 	  PB-A8 is a platform with an on-board Cortex-A8 and has support for
 	  PCI-E and Compact Flash.
 
+config MACH_REALVIEW_PBX
+	bool "Support RealView/PBX platform"
+	select ARM_GIC
+	select HAVE_PATA_PLATFORM
+	help
+	  Include support for the ARM(R) RealView PBX platform.
+
 config REALVIEW_HIGH_PHYS_OFFSET
 	bool "High physical base address for the RealView platform"
 	depends on !MACH_REALVIEW_PB1176

arch/arm/mach-realview/Makefile

@@ -7,5 +7,6 @@ obj-$(CONFIG_MACH_REALVIEW_EB)		+= realview_eb.o
 obj-$(CONFIG_MACH_REALVIEW_PB11MP)	+= realview_pb11mp.o
 obj-$(CONFIG_MACH_REALVIEW_PB1176)	+= realview_pb1176.o
 obj-$(CONFIG_MACH_REALVIEW_PBA8)	+= realview_pba8.o
+obj-$(CONFIG_MACH_REALVIEW_PBX)		+= realview_pbx.o
 obj-$(CONFIG_SMP)			+= platsmp.o headsmp.o localtimer.o
 obj-$(CONFIG_HOTPLUG_CPU)		+= hotplug.o

arch/arm/mach-realview/include/mach/board-pbx.h

+/*
+ * arch/arm/mach-realview/include/mach/board-pbx.h
+ *
+ * Copyright (C) 2009 ARM Limited
+ *
+ * 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.
+ *
+ * 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_BOARD_PBX_H
+#define __ASM_ARCH_BOARD_PBX_H
+
+#include <mach/platform.h>
+
+/*
+ * Peripheral addresses
+ */
+#define REALVIEW_PBX_UART0_BASE			0x10009000	/* UART 0 */
+#define REALVIEW_PBX_UART1_BASE			0x1000A000	/* UART 1 */
+#define REALVIEW_PBX_UART2_BASE			0x1000B000	/* UART 2 */
+#define REALVIEW_PBX_UART3_BASE			0x1000C000	/* UART 3 */
+#define REALVIEW_PBX_SSP_BASE			0x1000D000	/* Synchronous Serial Port */
+#define REALVIEW_PBX_WATCHDOG0_BASE		0x1000F000	/* Watchdog 0 */
+#define REALVIEW_PBX_WATCHDOG_BASE		0x10010000	/* watchdog interface */
+#define REALVIEW_PBX_TIMER0_1_BASE		0x10011000	/* Timer 0 and 1 */
+#define REALVIEW_PBX_TIMER2_3_BASE		0x10012000	/* Timer 2 and 3 */
+#define REALVIEW_PBX_GPIO0_BASE			0x10013000	/* GPIO port 0 */
+#define REALVIEW_PBX_RTC_BASE			0x10017000	/* Real Time Clock */
+#define REALVIEW_PBX_TIMER4_5_BASE		0x10018000	/* Timer 4/5 */
+#define REALVIEW_PBX_TIMER6_7_BASE		0x10019000	/* Timer 6/7 */
+#define REALVIEW_PBX_SCTL_BASE			0x1001A000	/* System Controller */
+#define REALVIEW_PBX_CLCD_BASE			0x10020000	/* CLCD */
+#define REALVIEW_PBX_ONB_SRAM_BASE		0x10060000	/* On-board SRAM */
+#define REALVIEW_PBX_DMC_BASE			0x100E0000	/* DMC configuration */
+#define REALVIEW_PBX_SMC_BASE			0x100E1000	/* SMC configuration */
+#define REALVIEW_PBX_CAN_BASE			0x100E2000	/* CAN bus */
+#define REALVIEW_PBX_GIC_CPU_BASE		0x1E000000	/* Generic interrupt controller CPU interface */
+#define REALVIEW_PBX_FLASH0_BASE		0x40000000
+#define REALVIEW_PBX_FLASH0_SIZE		SZ_64M
+#define REALVIEW_PBX_FLASH1_BASE		0x44000000
+#define REALVIEW_PBX_FLASH1_SIZE		SZ_64M
+#define REALVIEW_PBX_ETH_BASE			0x4E000000	/* Ethernet */
+#define REALVIEW_PBX_USB_BASE			0x4F000000	/* USB */
+#define REALVIEW_PBX_GIC_DIST_BASE		0x1E001000	/* Generic interrupt controller distributor */
+#define REALVIEW_PBX_LT_BASE			0xC0000000	/* Logic Tile expansion */
+#define REALVIEW_PBX_SDRAM6_BASE		0x70000000	/* SDRAM bank 6 256MB */
+#define REALVIEW_PBX_SDRAM7_BASE		0x80000000	/* SDRAM bank 7 256MB */
+
+/*
+ * Tile-specific addresses
+ */
+#define REALVIEW_PBX_TILE_SCU_BASE		0x1F000000      /* SCU registers */
+#define REALVIEW_PBX_TILE_GIC_CPU_BASE		0x1F000100      /* Private Generic interrupt controller CPU interface */
+#define REALVIEW_PBX_TILE_TWD_BASE		0x1F000600
+#define REALVIEW_PBX_TILE_TWD_PERCPU_BASE	0x1F000700
+#define REALVIEW_PBX_TILE_TWD_SIZE		0x00000100
+#define REALVIEW_PBX_TILE_GIC_DIST_BASE		0x1F001000      /* Private Generic interrupt controller distributor */
+#define REALVIEW_PBX_TILE_L220_BASE		0x1F002000      /* L220 registers */
+
+#define REALVIEW_PBX_SYS_PLD_CTRL1		0x74
+
+/*
+ * PBX PCI regions
+ */
+#define REALVIEW_PBX_PCI_BASE			0x90040000	/* PCI-X Unit base */
+#define REALVIEW_PBX_PCI_IO_BASE		0x90050000	/* IO Region on AHB */
+#define REALVIEW_PBX_PCI_MEM_BASE		0xA0000000	/* MEM Region on AHB */
+
+#define REALVIEW_PBX_PCI_BASE_SIZE		0x10000		/* 16 Kb */
+#define REALVIEW_PBX_PCI_IO_SIZE		0x1000		/* 4 Kb */
+#define REALVIEW_PBX_PCI_MEM_SIZE		0x20000000	/* 512 MB */
+
+/*
+ * Irqs
+ */
+#define IRQ_PBX_GIC_START			32
+
+/* L220
+#define IRQ_PBX_L220_EVENT	(IRQ_PBX_GIC_START + 29)
+#define IRQ_PBX_L220_SLAVE	(IRQ_PBX_GIC_START + 30)
+#define IRQ_PBX_L220_DECODE	(IRQ_PBX_GIC_START + 31)
+*/
+
+/*
+ * PB-X on-board gic irq sources
+ */
+#define IRQ_PBX_WATCHDOG	(IRQ_PBX_GIC_START + 0)	/* Watchdog timer */
+#define IRQ_PBX_SOFT		(IRQ_PBX_GIC_START + 1)	/* Software interrupt */
+#define IRQ_PBX_COMMRx		(IRQ_PBX_GIC_START + 2)	/* Debug Comm Rx interrupt */
+#define IRQ_PBX_COMMTx		(IRQ_PBX_GIC_START + 3)	/* Debug Comm Tx interrupt */
+#define IRQ_PBX_TIMER0_1	(IRQ_PBX_GIC_START + 4)	/* Timer 0/1 (default timer) */
+#define IRQ_PBX_TIMER2_3	(IRQ_PBX_GIC_START + 5)	/* Timer 2/3 */
+#define IRQ_PBX_GPIO0		(IRQ_PBX_GIC_START + 6)	/* GPIO 0 */
+#define IRQ_PBX_GPIO1		(IRQ_PBX_GIC_START + 7)	/* GPIO 1 */
+#define IRQ_PBX_GPIO2		(IRQ_PBX_GIC_START + 8)	/* GPIO 2 */
+								/* 9 reserved */
+#define IRQ_PBX_RTC		(IRQ_PBX_GIC_START + 10)	/* Real Time Clock */
+#define IRQ_PBX_SSP		(IRQ_PBX_GIC_START + 11)	/* Synchronous Serial Port */
+#define IRQ_PBX_UART0		(IRQ_PBX_GIC_START + 12)	/* UART 0 on development chip */
+#define IRQ_PBX_UART1		(IRQ_PBX_GIC_START + 13)	/* UART 1 on development chip */
+#define IRQ_PBX_UART2		(IRQ_PBX_GIC_START + 14)	/* UART 2 on development chip */
+#define IRQ_PBX_UART3		(IRQ_PBX_GIC_START + 15)	/* UART 3 on development chip */
+#define IRQ_PBX_SCI		(IRQ_PBX_GIC_START + 16)	/* Smart Card Interface */
+#define IRQ_PBX_MMCI0A		(IRQ_PBX_GIC_START + 17)	/* Multimedia Card 0A */
+#define IRQ_PBX_MMCI0B		(IRQ_PBX_GIC_START + 18)	/* Multimedia Card 0B */
+#define IRQ_PBX_AACI		(IRQ_PBX_GIC_START + 19)	/* Audio Codec */
+#define IRQ_PBX_KMI0		(IRQ_PBX_GIC_START + 20)	/* Keyboard/Mouse port 0 */
+#define IRQ_PBX_KMI1		(IRQ_PBX_GIC_START + 21)	/* Keyboard/Mouse port 1 */
+#define IRQ_PBX_CHARLCD		(IRQ_PBX_GIC_START + 22)	/* Character LCD */
+#define IRQ_PBX_CLCD		(IRQ_PBX_GIC_START + 23)	/* CLCD controller */
+#define IRQ_PBX_DMAC		(IRQ_PBX_GIC_START + 24)	/* DMA controller */
+#define IRQ_PBX_PWRFAIL		(IRQ_PBX_GIC_START + 25)	/* Power failure */
+#define IRQ_PBX_PISMO		(IRQ_PBX_GIC_START + 26)	/* PISMO interface */
+#define IRQ_PBX_DoC		(IRQ_PBX_GIC_START + 27)	/* Disk on Chip memory controller */
+#define IRQ_PBX_ETH		(IRQ_PBX_GIC_START + 28)	/* Ethernet controller */
+#define IRQ_PBX_USB		(IRQ_PBX_GIC_START + 29)	/* USB controller */
+#define IRQ_PBX_TSPEN		(IRQ_PBX_GIC_START + 30)	/* Touchscreen pen */
+#define IRQ_PBX_TSKPAD		(IRQ_PBX_GIC_START + 31)	/* Touchscreen keypad */
+
+#define IRQ_PBX_PMU_SCU0        (IRQ_PBX_GIC_START + 32)        /* SCU PMU Interrupts (11mp) */
+#define IRQ_PBX_PMU_SCU1        (IRQ_PBX_GIC_START + 33)
+#define IRQ_PBX_PMU_SCU2        (IRQ_PBX_GIC_START + 34)
+#define IRQ_PBX_PMU_SCU3        (IRQ_PBX_GIC_START + 35)
+#define IRQ_PBX_PMU_SCU4        (IRQ_PBX_GIC_START + 36)
+#define IRQ_PBX_PMU_SCU5        (IRQ_PBX_GIC_START + 37)
+#define IRQ_PBX_PMU_SCU6        (IRQ_PBX_GIC_START + 38)
+#define IRQ_PBX_PMU_SCU7        (IRQ_PBX_GIC_START + 39)
+
+#define IRQ_PBX_WATCHDOG1       (IRQ_PBX_GIC_START + 40)        /* Watchdog1 timer */
+#define IRQ_PBX_TIMER4_5        (IRQ_PBX_GIC_START + 41)        /* Timer 0/1 (default timer) */
+#define IRQ_PBX_TIMER6_7        (IRQ_PBX_GIC_START + 42)        /* Timer 2/3 */
+/* ... */
+#define IRQ_PBX_PMU_CPU3        (IRQ_PBX_GIC_START + 44)        /* CPU PMU Interrupts */
+#define IRQ_PBX_PMU_CPU2        (IRQ_PBX_GIC_START + 45)
+#define IRQ_PBX_PMU_CPU1        (IRQ_PBX_GIC_START + 46)
+#define IRQ_PBX_PMU_CPU0        (IRQ_PBX_GIC_START + 47)
+
+/* ... */
+#define IRQ_PBX_PCI0		(IRQ_PBX_GIC_START + 50)
+#define IRQ_PBX_PCI1		(IRQ_PBX_GIC_START + 51)
+#define IRQ_PBX_PCI2		(IRQ_PBX_GIC_START + 52)
+#define IRQ_PBX_PCI3		(IRQ_PBX_GIC_START + 53)
+
+#define IRQ_PBX_SMC		-1
+#define IRQ_PBX_SCTL		-1
+
+#define NR_GIC_PBX		1
+
+/*
+ * Only define NR_IRQS if less than NR_IRQS_PBX
+ */
+#define NR_IRQS_PBX		(IRQ_PBX_GIC_START + 96)
+
+#if defined(CONFIG_MACH_REALVIEW_PBX)
+
+#if !defined(NR_IRQS) || (NR_IRQS < NR_IRQS_PBX)
+#undef NR_IRQS
+#define NR_IRQS			NR_IRQS_PBX
+#endif
+
+#if !defined(MAX_GIC_NR) || (MAX_GIC_NR < NR_GIC_PBX)
+#undef MAX_GIC_NR
+#define MAX_GIC_NR		NR_GIC_PBX
+#endif
+
+#endif	/* CONFIG_MACH_REALVIEW_PBX */
+
+/*
+ * Core tile identification (REALVIEW_SYS_PROCID)
+ */
+#define REALVIEW_PBX_PROC_MASK          0xFF000000
+#define REALVIEW_PBX_PROC_ARM7TDMI      0x00000000
+#define REALVIEW_PBX_PROC_ARM9          0x02000000
+#define REALVIEW_PBX_PROC_ARM11         0x04000000
+#define REALVIEW_PBX_PROC_ARM11MP       0x06000000
+#define REALVIEW_PBX_PROC_A9MP          0x0C000000
+#define REALVIEW_PBX_PROC_A8            0x0E000000
+
+#define check_pbx_proc(proc_type)                                            \
+	((readl(__io_address(REALVIEW_SYS_PROCID)) & REALVIEW_PBX_PROC_MASK) \
+	== proc_type)
+
+#ifdef CONFIG_MACH_REALVIEW_PBX
+#define core_tile_pbx11mp()     check_pbx_proc(REALVIEW_PBX_PROC_ARM11MP)
+#define core_tile_pbxa9mp()     check_pbx_proc(REALVIEW_PBX_PROC_A9MP)
+#define core_tile_pbxa8()       check_pbx_proc(REALVIEW_PBX_PROC_A8)
+#else
+#define core_tile_pbx11mp()     0
+#define core_tile_pbxa9mp()     0
+#define core_tile_pbxa8()       0
+#endif
+
+#endif	/* __ASM_ARCH_BOARD_PBX_H */

arch/arm/mach-realview/include/mach/debug-macro.S

@@ -12,7 +12,8 @@
 
 #if defined(CONFIG_MACH_REALVIEW_EB) || \
     defined(CONFIG_MACH_REALVIEW_PB11MP) || \
-    defined(CONFIG_MACH_REALVIEW_PBA8)
+    defined(CONFIG_MACH_REALVIEW_PBA8) || \
+    defined(CONFIG_MACH_REALVIEW_PBX)
 #ifndef DEBUG_LL_UART_OFFSET
 #define DEBUG_LL_UART_OFFSET	0x00009000
 #elif DEBUG_LL_UART_OFFSET != 0x00009000

arch/arm/mach-realview/include/mach/irqs.h

@@ -26,6 +26,7 @@
 #include <mach/board-pb11mp.h>
 #include <mach/board-pb1176.h>
 #include <mach/board-pba8.h>
+#include <mach/board-pbx.h>
 
 #define IRQ_LOCALTIMER		29
 #define IRQ_LOCALWDOG		30

arch/arm/mach-realview/include/mach/uncompress.h

@@ -24,6 +24,7 @@
 #include <mach/board-pb11mp.h>
 #include <mach/board-pb1176.h>
 #include <mach/board-pba8.h>
+#include <mach/board-pbx.h>
 
 #define AMBA_UART_DR(base)	(*(volatile unsigned char *)((base) + 0x00))
 #define AMBA_UART_LCRH(base)	(*(volatile unsigned char *)((base) + 0x2c))
@@ -43,6 +44,8 @@ static inline unsigned long get_uart_base(void)
 		return REALVIEW_PB1176_UART0_BASE;
 	else if (machine_is_realview_pba8())
 		return REALVIEW_PBA8_UART0_BASE;
+	else if (machine_is_realview_pbx())
+		return REALVIEW_PBX_UART0_BASE;
 	else
 		return 0;
 }

arch/arm/mach-realview/platsmp.c

@@ -22,6 +22,7 @@
 
 #include <mach/board-eb.h>
 #include <mach/board-pb11mp.h>
+#include <mach/board-pbx.h>
 #include <mach/scu.h>
 
 #include "core.h"
@@ -40,6 +41,9 @@ static void __iomem *scu_base_addr(void)
 		return __io_address(REALVIEW_EB11MP_SCU_BASE);
 	else if (machine_is_realview_pb11mp())
 		return __io_address(REALVIEW_TC11MP_SCU_BASE);
+	else if (machine_is_realview_pbx() &&
+		 (core_tile_pbx11mp() || core_tile_pbxa9mp()))
+		return __io_address(REALVIEW_PBX_TILE_SCU_BASE);
 	else
 		return (void __iomem *)0;
 }

arch/arm/mm/Kconfig

@@ -391,7 +391,7 @@ config CPU_FEROCEON_OLD_ID
 
 # ARMv6
 config CPU_V6
-	bool "Support ARM V6 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB
+	bool "Support ARM V6 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX
 	select CPU_32v6
 	select CPU_ABRT_EV6
 	select CPU_PABRT_NOIFAR
@@ -416,7 +416,7 @@ config CPU_32v6K
 
 # ARMv7
 config CPU_V7
-	bool "Support ARM V7 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB
+	bool "Support ARM V7 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX
 	select CPU_32v6K
 	select CPU_32v7
 	select CPU_ABRT_EV7
@@ -747,7 +747,7 @@ config CACHE_FEROCEON_L2_WRITETHROUGH
 config CACHE_L2X0
 	bool "Enable the L2x0 outer cache controller"
 	depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176 || \
-		   REALVIEW_EB_A9MP || ARCH_MX35 || ARCH_MX31
+		   REALVIEW_EB_A9MP || ARCH_MX35 || ARCH_MX31 || MACH_REALVIEW_PBX
 	default y
 	select OUTER_CACHE
 	help