RealView: Add support for the Cortex-A8 Platform Baseboard

This patch adds support for RealView/PB-A8, a platform based on
Cortex-A8 with support for PCI-E and compact flash.

Signed-off-by: Bahadir Balban <bahadir.balban@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

1 files changed, 307 insertions, 0 deletions

diff --git a/arch/arm/mach-realview/realview_pba8.c b/arch/arm/mach-realview/realview_pba8.c
new file mode 100644
index 00000000000..0c237e90c99
--- /dev/null
+++ b/arch/arm/mach-realview/realview_pba8.c
@@ -0,0 +1,307 @@
+/*
+ *  linux/arch/arm/mach-realview/realview_pba8.c
+ *
+ *  Copyright (C) 2008 ARM Limited
+ *  Copyright (C) 2000 Deep Blue Solutions Ltd
+ *
+ * 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
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/sysdev.h>
+#include <linux/amba/bus.h>
+#include <linux/io.h>
+
+#include <asm/irq.h>
+#include <asm/leds.h>
+#include <asm/mach-types.h>
+#include <asm/hardware/gic.h>
+#include <asm/hardware/icst307.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/mmc.h>
+#include <asm/mach/time.h>
+
+#include <mach/hardware.h>
+#include <mach/board-pba8.h>
+#include <mach/irqs.h>
+
+#include "core.h"
+#include "clock.h"
+
+static struct map_desc realview_pba8_io_desc[] __initdata = {
+	{
+		.virtual	= IO_ADDRESS(REALVIEW_SYS_BASE),
+		.pfn		= __phys_to_pfn(REALVIEW_SYS_BASE),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(REALVIEW_PBA8_GIC_CPU_BASE),
+		.pfn		= __phys_to_pfn(REALVIEW_PBA8_GIC_CPU_BASE),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(REALVIEW_PBA8_GIC_DIST_BASE),
+		.pfn		= __phys_to_pfn(REALVIEW_PBA8_GIC_DIST_BASE),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(REALVIEW_SCTL_BASE),
+		.pfn		= __phys_to_pfn(REALVIEW_SCTL_BASE),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(REALVIEW_PBA8_TIMER0_1_BASE),
+		.pfn		= __phys_to_pfn(REALVIEW_PBA8_TIMER0_1_BASE),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= IO_ADDRESS(REALVIEW_PBA8_TIMER2_3_BASE),
+		.pfn		= __phys_to_pfn(REALVIEW_PBA8_TIMER2_3_BASE),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	},
+#ifdef CONFIG_PCI
+	{
+		.virtual	= PCIX_UNIT_BASE,
+		.pfn		= __phys_to_pfn(REALVIEW_PBA8_PCI_BASE),
+		.length		= REALVIEW_PBA8_PCI_BASE_SIZE,
+		.type		= MT_DEVICE
+	},
+#endif
+#ifdef CONFIG_DEBUG_LL
+	{
+		.virtual	= IO_ADDRESS(REALVIEW_PBA8_UART0_BASE),
+		.pfn		= __phys_to_pfn(REALVIEW_PBA8_UART0_BASE),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	},
+#endif
+};
+
+static void __init realview_pba8_map_io(void)
+{
+	iotable_init(realview_pba8_io_desc, ARRAY_SIZE(realview_pba8_io_desc));
+}
+
+/*
+ * RealView PBA8Core AMBA devices
+ */
+
+#define GPIO2_IRQ		{ IRQ_PBA8_GPIO2, NO_IRQ }
+#define GPIO2_DMA		{ 0, 0 }
+#define GPIO3_IRQ		{ IRQ_PBA8_GPIO3, NO_IRQ }
+#define GPIO3_DMA		{ 0, 0 }
+#define AACI_IRQ		{ IRQ_PBA8_AACI, NO_IRQ }
+#define AACI_DMA		{ 0x80, 0x81 }
+#define MMCI0_IRQ		{ IRQ_PBA8_MMCI0A, IRQ_PBA8_MMCI0B }
+#define MMCI0_DMA		{ 0x84, 0 }
+#define KMI0_IRQ		{ IRQ_PBA8_KMI0, NO_IRQ }
+#define KMI0_DMA		{ 0, 0 }
+#define KMI1_IRQ		{ IRQ_PBA8_KMI1, NO_IRQ }
+#define KMI1_DMA		{ 0, 0 }
+#define PBA8_SMC_IRQ		{ NO_IRQ, NO_IRQ }
+#define PBA8_SMC_DMA		{ 0, 0 }
+#define MPMC_IRQ		{ NO_IRQ, NO_IRQ }
+#define MPMC_DMA		{ 0, 0 }
+#define PBA8_CLCD_IRQ		{ IRQ_PBA8_CLCD, NO_IRQ }
+#define PBA8_CLCD_DMA		{ 0, 0 }
+#define DMAC_IRQ		{ IRQ_PBA8_DMAC, NO_IRQ }
+#define DMAC_DMA		{ 0, 0 }
+#define SCTL_IRQ		{ NO_IRQ, NO_IRQ }
+#define SCTL_DMA		{ 0, 0 }
+#define PBA8_WATCHDOG_IRQ	{ IRQ_PBA8_WATCHDOG, NO_IRQ }
+#define PBA8_WATCHDOG_DMA	{ 0, 0 }
+#define PBA8_GPIO0_IRQ		{ IRQ_PBA8_GPIO0, NO_IRQ }
+#define PBA8_GPIO0_DMA		{ 0, 0 }
+#define GPIO1_IRQ		{ IRQ_PBA8_GPIO1, NO_IRQ }
+#define GPIO1_DMA		{ 0, 0 }
+#define PBA8_RTC_IRQ		{ IRQ_PBA8_RTC, NO_IRQ }
+#define PBA8_RTC_DMA		{ 0, 0 }
+#define SCI_IRQ			{ IRQ_PBA8_SCI, NO_IRQ }
+#define SCI_DMA			{ 7, 6 }
+#define PBA8_UART0_IRQ		{ IRQ_PBA8_UART0, NO_IRQ }
+#define PBA8_UART0_DMA		{ 15, 14 }
+#define PBA8_UART1_IRQ		{ IRQ_PBA8_UART1, NO_IRQ }
+#define PBA8_UART1_DMA		{ 13, 12 }
+#define PBA8_UART2_IRQ		{ IRQ_PBA8_UART2, NO_IRQ }
+#define PBA8_UART2_DMA		{ 11, 10 }
+#define PBA8_UART3_IRQ		{ IRQ_PBA8_UART3, NO_IRQ }
+#define PBA8_UART3_DMA		{ 0x86, 0x87 }
+#define PBA8_SSP_IRQ		{ IRQ_PBA8_SSP, NO_IRQ }
+#define PBA8_SSP_DMA		{ 9, 8 }
+
+/* FPGA Primecells */
+AMBA_DEVICE(aaci,	"fpga:04",	AACI,		NULL);
+AMBA_DEVICE(mmc0,	"fpga:05",	MMCI0,		&realview_mmc0_plat_data);
+AMBA_DEVICE(kmi0,	"fpga:06",	KMI0,		NULL);
+AMBA_DEVICE(kmi1,	"fpga:07",	KMI1,		NULL);
+AMBA_DEVICE(uart3,	"fpga:09",	PBA8_UART3,	NULL);
+
+/* DevChip Primecells */
+AMBA_DEVICE(smc,	"dev:00",	PBA8_SMC,	NULL);
+AMBA_DEVICE(sctl,	"dev:e0",	SCTL,		NULL);
+AMBA_DEVICE(wdog,	"dev:e1",	PBA8_WATCHDOG, NULL);
+AMBA_DEVICE(gpio0,	"dev:e4",	PBA8_GPIO0,	NULL);
+AMBA_DEVICE(gpio1,	"dev:e5",	GPIO1,		NULL);
+AMBA_DEVICE(gpio2,	"dev:e6",	GPIO2,		NULL);
+AMBA_DEVICE(rtc,	"dev:e8",	PBA8_RTC,	NULL);
+AMBA_DEVICE(sci0,	"dev:f0",	SCI,		NULL);
+AMBA_DEVICE(uart0,	"dev:f1",	PBA8_UART0,	NULL);
+AMBA_DEVICE(uart1,	"dev:f2",	PBA8_UART1,	NULL);
+AMBA_DEVICE(uart2,	"dev:f3",	PBA8_UART2,	NULL);
+AMBA_DEVICE(ssp0,	"dev:f4",	PBA8_SSP,	NULL);
+
+/* Primecells on the NEC ISSP chip */
+AMBA_DEVICE(clcd,	"issp:20",	PBA8_CLCD,	&clcd_plat_data);
+AMBA_DEVICE(dmac,	"issp:30",	DMAC,		NULL);
+
+static struct amba_device *amba_devs[] __initdata = {
+	&dmac_device,
+	&uart0_device,
+	&uart1_device,
+	&uart2_device,
+	&uart3_device,
+	&smc_device,
+	&clcd_device,
+	&sctl_device,
+	&wdog_device,
+	&gpio0_device,
+	&gpio1_device,
+	&gpio2_device,
+	&rtc_device,
+	&sci0_device,
+	&ssp0_device,
+	&aaci_device,
+	&mmc0_device,
+	&kmi0_device,
+	&kmi1_device,
+};
+
+/*
+ * RealView PB-A8 platform devices
+ */
+static struct resource realview_pba8_flash_resource[] = {
+	[0] = {
+		.start		= REALVIEW_PBA8_FLASH0_BASE,
+		.end		= REALVIEW_PBA8_FLASH0_BASE + REALVIEW_PBA8_FLASH0_SIZE - 1,
+		.flags		= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start		= REALVIEW_PBA8_FLASH1_BASE,
+		.end		= REALVIEW_PBA8_FLASH1_BASE + REALVIEW_PBA8_FLASH1_SIZE - 1,
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
+static struct resource realview_pba8_smsc911x_resources[] = {
+	[0] = {
+		.start		= REALVIEW_PBA8_ETH_BASE,
+		.end		= REALVIEW_PBA8_ETH_BASE + SZ_64K - 1,
+		.flags		= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start		= IRQ_PBA8_ETH,
+		.end		= IRQ_PBA8_ETH,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device realview_pba8_smsc911x_device = {
+	.name		= "smc911x",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(realview_pba8_smsc911x_resources),
+	.resource	= realview_pba8_smsc911x_resources,
+};
+
+struct resource realview_pba8_cf_resources[] = {
+	[0] = {
+		.start		= REALVIEW_PBA8_CF_BASE,
+		.end		= REALVIEW_PBA8_CF_BASE + SZ_4K - 1,
+		.flags		= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start		= REALVIEW_PBA8_CF_MEM_BASE,
+		.end		= REALVIEW_PBA8_CF_MEM_BASE + SZ_4K - 1,
+		.flags		= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start		= -1,		/* FIXME: Find correct irq */
+		.end		= -1,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device realview_pba8_cf_device = {
+	.name		= "compactflash",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(realview_pba8_cf_resources),
+	.resource	= realview_pba8_cf_resources,
+};
+
+static void __init gic_init_irq(void)
+{
+	/* ARM PB-A8 on-board GIC */
+	gic_cpu_base_addr = __io_address(REALVIEW_PBA8_GIC_CPU_BASE);
+	gic_dist_init(0, __io_address(REALVIEW_PBA8_GIC_DIST_BASE), IRQ_PBA8_GIC_START);
+	gic_cpu_init(0, __io_address(REALVIEW_PBA8_GIC_CPU_BASE));
+}
+
+static void __init realview_pba8_timer_init(void)
+{
+	timer0_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE);
+	timer1_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE) + 0x20;
+	timer2_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE);
+	timer3_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE) + 0x20;
+
+	realview_timer_init(IRQ_PBA8_TIMER0_1);
+}
+
+static struct sys_timer realview_pba8_timer = {
+	.init		= realview_pba8_timer_init,
+};
+
+static void __init realview_pba8_init(void)
+{
+	int i;
+
+	realview_flash_register(realview_pba8_flash_resource,
+				ARRAY_SIZE(realview_pba8_flash_resource));
+	platform_device_register(&realview_pba8_smsc911x_device);
+	platform_device_register(&realview_i2c_device);
+	platform_device_register(&realview_pba8_cf_device);
+
+	for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
+		struct amba_device *d = amba_devs[i];
+		amba_device_register(d, &iomem_resource);
+	}
+
+#ifdef CONFIG_LEDS
+	leds_event = realview_leds_event;
+#endif
+}
+
+MACHINE_START(REALVIEW_PBA8, "ARM-RealView PB-A8")
+	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
+	.phys_io	= REALVIEW_PBA8_UART0_BASE,
+	.io_pg_offst	= (IO_ADDRESS(REALVIEW_PBA8_UART0_BASE) >> 18) & 0xfffc,
+	.boot_params	= PHYS_OFFSET + 0x00000100,
+	.map_io		= realview_pba8_map_io,
+	.init_irq	= gic_init_irq,
+	.timer		= &realview_pba8_timer,
+	.init_machine	= realview_pba8_init,
+MACHINE_END