ARM: vexpress: create A5 specific board config

This patch creates a new config for the A5 dual core tile that includes the
generic config for the Versatile Express platform.

The generic config has been modified to provide support for the Extended
Memory Map, as used on the A5 core tile.  A5 does not support the legacy
memory map.

Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
Signed-off-by: Andre Przywara <andre.przywara@linaro.org>

MAINTAINERS

@@ -968,6 +968,7 @@ Hugo Villeneuve <hugo.villeneuve@lyrtech.com>
 Matt Waddel <matt.waddel@linaro.org>
 
 	vexpress_ca9x4	ARM ARMV7 (Quad Core)
+	vexpress_ca5x2	ARM ARMV7 (Dual Core)
 
 Otavio Salvador <otavio@ossystems.com.br>
 

board/armltd/vexpress/vexpress_common.c

@@ -45,8 +45,7 @@
 static ulong timestamp;
 static ulong lastdec;
 
-static struct wdt *wdt_base = (struct wdt *)WDT_BASE;
-static struct systimer *systimer_base = (struct systimer *)SYSTIMER_BASE;
+static struct systimer *systimer_base = (struct systimer *)V2M_TIMER01;
 static struct sysctrl *sysctrl_base = (struct sysctrl *)SCTL_BASE;
 
 static void flash__init(void);
@@ -173,13 +172,31 @@ static void vexpress_timer_init(void)
 	reset_timer_masked();
 }
 
+int v2m_cfg_write(u32 devfn, u32 data)
+{
+	/* Configuration interface broken? */
+	u32 val;
+
+	devfn |= SYS_CFG_START | SYS_CFG_WRITE;
+
+	val = readl(V2M_SYS_CFGSTAT);
+	writel(val & ~SYS_CFG_COMPLETE, V2M_SYS_CFGSTAT);
+
+	writel(data, V2M_SYS_CFGDATA);
+	writel(devfn, V2M_SYS_CFGCTRL);
+
+	do {
+		val = readl(V2M_SYS_CFGSTAT);
+	} while (val == 0);
+
+	return !!(val & SYS_CFG_ERR);
+}
+
 /* Use the ARM Watchdog System to cause reset */
 void reset_cpu(ulong addr)
 {
-	writeb(WDT_EN, &wdt_base->wdogcontrol);
-	writel(WDT_RESET_LOAD, &wdt_base->wdogload);
-	while (1)
-		;
+	if (v2m_cfg_write(SYS_CFG_REBOOT | SYS_CFG_SITE_MB, 0))
+		printf("Unable to reboot\n");
 }
 
 /*

boards.cfg

@@ -238,6 +238,7 @@ versatilepb                  arm         arm926ejs   versatile           armltd
 versatileqemu                arm         arm926ejs   versatile           armltd         versatile   versatile:ARCH_VERSATILE_QEMU,ARCH_VERSATILE_PB
 integratorap_cm946es         arm         arm946es    integrator          armltd         -               integratorap:CM946ES
 integratorcp_cm946es         arm         arm946es    integrator          armltd         -               integratorcp:CM946ES
+vexpress_ca5x2               arm         armv7       vexpress            armltd
 vexpress_ca9x4               arm         armv7       vexpress            armltd
 am335x_evm                   arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL1,CONS_INDEX=1
 am335x_evm_spiboot           arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL1,CONS_INDEX=1,SPI_BOOT

include/configs/vexpress_ca5x2.h

@@ -0,0 +1,34 @@
+/*
+ * (C) Copyright 2011 Linaro
+ * Ryan Harkin, <ryan.harkin@linaro.org>
+ *
+ * Configuration for Versatile Express. Parts were derived from other ARM
+ *   configurations.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 __VEXPRESS_CA5X2_h
+#define __VEXPRESS_CA5X2_h
+
+#define CONFIG_VEXPRESS_EXTENDED_MEMORY_MAP
+#include "vexpress_common.h"
+#define CONFIG_BOOTP_VCI_STRING     "U-boot.armv7.vexpress_ca5x2"
+
+#endif /* __VEXPRESS_CA5X2_h */

include/configs/vexpress_common.h

@@ -1,4 +1,5 @@
 /*
+ * (C) Copyright 2011 ARM Limited
  * (C) Copyright 2010 Linaro
  * Matt Waddel, <matt.waddel@linaro.org>
  *
@@ -24,15 +25,113 @@
  * MA 02111-1307 USA
  */
 
-#ifndef __CONFIG_H
-#define __CONFIG_H
+#ifndef __VEXPRESS_COMMON_H
+#define __VEXPRESS_COMMON_H
+
+/*
+ * Definitions copied from linux kernel:
+ * arch/arm/mach-vexpress/include/mach/motherboard.h
+ */
+#ifdef CONFIG_VEXPRESS_ORIGINAL_MEMORY_MAP
+/* CS register bases for the original memory map. */
+#define V2M_PA_CS0		0x40000000
+#define V2M_PA_CS1		0x44000000
+#define V2M_PA_CS2		0x48000000
+#define V2M_PA_CS3		0x4c000000
+#define V2M_PA_CS7		0x10000000
+
+#define V2M_PERIPH_OFFSET(x)	(x << 12)
+#define V2M_SYSREGS		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(0))
+#define V2M_SYSCTL		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(1))
+#define V2M_SERIAL_BUS_PCI	(V2M_PA_CS7 + V2M_PERIPH_OFFSET(2))
+
+#define V2M_BASE		0x60000000
+#define CONFIG_SYS_TEXT_BASE	0x60800000
+#elif defined(CONFIG_VEXPRESS_EXTENDED_MEMORY_MAP)
+/* CS register bases for the extended memory map. */
+#define V2M_PA_CS0		0x08000000
+#define V2M_PA_CS1		0x0c000000
+#define V2M_PA_CS2		0x14000000
+#define V2M_PA_CS3		0x18000000
+#define V2M_PA_CS7		0x1c000000
+
+#define V2M_PERIPH_OFFSET(x)	(x << 16)
+#define V2M_SYSREGS		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(1))
+#define V2M_SYSCTL		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(2))
+#define V2M_SERIAL_BUS_PCI	(V2M_PA_CS7 + V2M_PERIPH_OFFSET(3))
+
+#define V2M_BASE		0x80000000
+#define CONFIG_SYS_TEXT_BASE	0x80800000
+#endif
+
+/*
+ * Physical addresses, offset from V2M_PA_CS0-3
+ */
+#define V2M_NOR0		(V2M_PA_CS0)
+#define V2M_NOR1		(V2M_PA_CS1)
+#define V2M_SRAM		(V2M_PA_CS2)
+#define V2M_VIDEO_SRAM		(V2M_PA_CS3 + 0x00000000)
+#define V2M_LAN9118		(V2M_PA_CS3 + 0x02000000)
+#define V2M_ISP1761		(V2M_PA_CS3 + 0x03000000)
+
+/* Common peripherals relative to CS7. */
+#define V2M_AACI		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(4))
+#define V2M_MMCI		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(5))
+#define V2M_KMI0		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(6))
+#define V2M_KMI1		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(7))
+
+#define V2M_UART0		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(9))
+#define V2M_UART1		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(10))
+#define V2M_UART2		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(11))
+#define V2M_UART3		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(12))
+
+#define V2M_WDT			(V2M_PA_CS7 + V2M_PERIPH_OFFSET(15))
+
+#define V2M_TIMER01		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(17))
+#define V2M_TIMER23		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(18))
+
+#define V2M_SERIAL_BUS_DVI	(V2M_PA_CS7 + V2M_PERIPH_OFFSET(22))
+#define V2M_RTC			(V2M_PA_CS7 + V2M_PERIPH_OFFSET(23))
+
+#define V2M_CF			(V2M_PA_CS7 + V2M_PERIPH_OFFSET(26))
+
+#define V2M_CLCD		(V2M_PA_CS7 + V2M_PERIPH_OFFSET(31))
+#define V2M_SIZE_CS7		V2M_PERIPH_OFFSET(32)
+
+/* System register offsets. */
+#define V2M_SYS_CFGDATA		(V2M_SYSREGS + 0x0a0)
+#define V2M_SYS_CFGCTRL		(V2M_SYSREGS + 0x0a4)
+#define V2M_SYS_CFGSTAT		(V2M_SYSREGS + 0x0a8)
+
+/*
+ * Configuration
+ */
+#define SYS_CFG_START		(1 << 31)
+#define SYS_CFG_WRITE		(1 << 30)
+#define SYS_CFG_OSC		(1 << 20)
+#define SYS_CFG_VOLT		(2 << 20)
+#define SYS_CFG_AMP		(3 << 20)
+#define SYS_CFG_TEMP		(4 << 20)
+#define SYS_CFG_RESET		(5 << 20)
+#define SYS_CFG_SCC		(6 << 20)
+#define SYS_CFG_MUXFPGA		(7 << 20)
+#define SYS_CFG_SHUTDOWN	(8 << 20)
+#define SYS_CFG_REBOOT		(9 << 20)
+#define SYS_CFG_DVIMODE		(11 << 20)
+#define SYS_CFG_POWER		(12 << 20)
+#define SYS_CFG_SITE_MB		(0 << 16)
+#define SYS_CFG_SITE_DB1	(1 << 16)
+#define SYS_CFG_SITE_DB2	(2 << 16)
+#define SYS_CFG_STACK(n)	((n) << 12)
+
+#define SYS_CFG_ERR		(1 << 1)
+#define SYS_CFG_COMPLETE	(1 << 0)
 
 /* Board info register */
-#define SYS_ID				0x10000000
+#define SYS_ID				V2M_SYSREGS
 #define CONFIG_REVISION_TAG		1
-#define CONFIG_SYS_TEXT_BASE		0x60800000
 
-#define CONFIG_SYS_MEMTEST_START	0x60000000
+#define CONFIG_SYS_MEMTEST_START	V2M_BASE
 #define CONFIG_SYS_MEMTEST_END		0x20000000
 #define CONFIG_SYS_HZ			1000
 
@@ -46,13 +145,13 @@
 /* Size of malloc() pool */
 #define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + 128 * 1024)
 
-#define SCTL_BASE			0x10001000
+#define SCTL_BASE			V2M_SYSCTL
 #define VEXPRESS_FLASHPROG_FLVPPEN	(1 << 0)
 
 /* SMSC9115 Ethernet from SMSC9118 family */
 #define CONFIG_SMC911X			1
 #define CONFIG_SMC911X_32_BIT		1
-#define CONFIG_SMC911X_BASE		0x4E000000
+#define CONFIG_SMC911X_BASE		V2M_LAN9118
 
 /* PL011 Serial Configuration */
 #define CONFIG_PL011_SERIAL
@@ -62,8 +161,9 @@
 #define CONFIG_CONS_INDEX		0
 
 #define CONFIG_BAUDRATE			38400
-#define CONFIG_SYS_SERIAL0		0x10009000
-#define CONFIG_SYS_SERIAL1		0x1000A000
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+#define CONFIG_SYS_SERIAL0		V2M_UART0
+#define CONFIG_SYS_SERIAL1		V2M_UART1
 
 /* Command line configuration */
 #define CONFIG_CMD_BDI
@@ -86,7 +186,7 @@
 #define CONFIG_CMD_MMC
 #define CONFIG_GENERIC_MMC
 #define CONFIG_ARM_PL180_MMCI
-#define CONFIG_ARM_PL180_MMCI_BASE	0x10005000
+#define CONFIG_ARM_PL180_MMCI_BASE	V2M_MMCI
 #define CONFIG_SYS_MMC_MAX_BLK_COUNT	127
 #define CONFIG_ARM_PL180_MMCI_CLOCK_FREQ 6250000
 
@@ -100,14 +200,15 @@
 
 /* Miscellaneous configurable options */
 #undef	CONFIG_SYS_CLKS_IN_HZ
-#define CONFIG_SYS_LOAD_ADDR		0x60008000	/* load address */
-#define LINUX_BOOT_PARAM_ADDR		0x60000200
+#define CONFIG_SYS_LOAD_ADDR		(V2M_BASE + 0x8000)
+#define LINUX_BOOT_PARAM_ADDR		(V2M_BASE + 0x2000)
 #define CONFIG_BOOTDELAY		2
 
 /* Physical Memory Map */
 #define CONFIG_NR_DRAM_BANKS		2
-#define PHYS_SDRAM_1			0x60000000	/* SDRAM Bank #1 */
-#define PHYS_SDRAM_2			0x80000000	/* SDRAM Bank #1 */
+#define PHYS_SDRAM_1			(V2M_BASE)	/* SDRAM Bank #1 */
+#define PHYS_SDRAM_2			(((unsigned int)V2M_BASE) + \
+					((unsigned int)0x20000000))
 #define PHYS_SDRAM_1_SIZE		0x20000000	/* 512 MB */
 #define PHYS_SDRAM_2_SIZE		0x20000000	/* 512 MB */
 
@@ -121,14 +222,27 @@
 
 /* Basic environment settings */
 #define CONFIG_BOOTCOMMAND		"run bootflash;"
-#define CONFIG_EXTRA_ENV_SETTINGS \
+#ifdef CONFIG_VEXPRESS_ORIGINAL_MEMORY_MAP
+#define CONFIG_PLATFORM_ENV_SETTINGS \
 		"loadaddr=0x80008000\0" \
 		"ramdisk_addr_r=0x61000000\0" \
 		"kernel_addr=0x44100000\0" \
 		"ramdisk_addr=0x44800000\0" \
 		"maxramdisk=0x1800000\0" \
 		"pxefile_addr_r=0x88000000\0" \
-		"kernel_addr_r=0x80008000\0" \
+		"kernel_addr_r=0x80008000\0"
+#elif defined(CONFIG_VEXPRESS_EXTENDED_MEMORY_MAP)
+#define CONFIG_PLATFORM_ENV_SETTINGS \
+		"loadaddr=0xa0008000\0" \
+		"ramdisk_addr_r=0x81000000\0" \
+		"kernel_addr=0x0c100000\0" \
+		"ramdisk_addr=0x0c800000\0" \
+		"maxramdisk=0x1800000\0" \
+		"pxefile_addr_r=0xa8000000\0" \
+		"kernel_addr_r=0xa0008000\0"
+#endif
+#define CONFIG_EXTRA_ENV_SETTINGS \
+		CONFIG_PLATFORM_ENV_SETTINGS \
 		"console=ttyAMA0,38400n8\0" \
 		"dram=1024M\0" \
 		"root=/dev/sda1 rw\0" \
@@ -147,8 +261,8 @@
 #define CONFIG_FLASH_CFI_DRIVER		1
 #define CONFIG_SYS_FLASH_SIZE		0x04000000
 #define CONFIG_SYS_MAX_FLASH_BANKS	2
-#define CONFIG_SYS_FLASH_BASE0		0x40000000
-#define CONFIG_SYS_FLASH_BASE1		0x44000000
+#define CONFIG_SYS_FLASH_BASE0		V2M_NOR0
+#define CONFIG_SYS_FLASH_BASE1		V2M_NOR1
 #define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_FLASH_BASE0
 
 /* Timeout values in ticks */
@@ -194,4 +308,4 @@
 #define CONFIG_CMDLINE_EDITING		1
 #define CONFIG_SYS_MAXARGS		16	/* max command args */
 
-#endif
+#endif /* VEXPRESS_COMMON_H */