aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-realview/realview_pbx.c
diff options
context:
space:
mode:
authorColin Tuckley <colin.tuckley@arm.com>2009-05-30 13:56:12 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2009-05-30 13:56:12 +0100
commit1b504bbe7a4a6c251cdc9dcba1fab72234827945 (patch)
treef747a26e44efb9420a2ac9a0f2c95f7004f3b826 /arch/arm/mach-realview/realview_pbx.c
parent412b400278ed0f71712387d0b9b31cbdd8a18efc (diff)
downloadlinux-linaro-stable-1b504bbe7a4a6c251cdc9dcba1fab72234827945.tar.gz
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>
Diffstat (limited to 'arch/arm/mach-realview/realview_pbx.c')
-rw-r--r--arch/arm/mach-realview/realview_pbx.c335
1 files changed, 335 insertions, 0 deletions
diff --git a/arch/arm/mach-realview/realview_pbx.c b/arch/arm/mach-realview/realview_pbx.c
new file mode 100644
index 000000000000..1fe294d0bf9d
--- /dev/null
+++ b/arch/arm/mach-realview/realview_pbx.c
@@ -0,0 +1,335 @@
+/*
+ * arch/arm/mach-realview/realview_pbx.c
+ *
+ * Copyright (C) 2009 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 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
+ */
+
+#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/cache-l2x0.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-pbx.h>
+#include <mach/irqs.h>
+
+#include "core.h"
+
+static struct map_desc realview_pbx_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_PBX_GIC_CPU_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_CPU_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_DIST_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_PBX_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_PBX_TIMER0_1_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER0_1_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER2_3_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER2_3_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ },
+#ifdef CONFIG_PCI
+ {
+ .virtual = PCIX_UNIT_BASE,
+ .pfn = __phys_to_pfn(REALVIEW_PBX_PCI_BASE),
+ .length = REALVIEW_PBX_PCI_BASE_SIZE,
+ .type = MT_DEVICE,
+ },
+#endif
+#ifdef CONFIG_DEBUG_LL
+ {
+ .virtual = IO_ADDRESS(REALVIEW_PBX_UART0_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_PBX_UART0_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ },
+#endif
+};
+
+static struct map_desc realview_local_io_desc[] __initdata = {
+ {
+ .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_CPU_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_CPU_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_DIST_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_DIST_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_L220_BASE),
+ .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_L220_BASE),
+ .length = SZ_8K,
+ .type = MT_DEVICE,
+ }
+};
+
+static void __init realview_pbx_map_io(void)
+{
+ iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc));
+ if (core_tile_pbx11mp() || core_tile_pbxa9mp())
+ iotable_init(realview_local_io_desc, ARRAY_SIZE(realview_local_io_desc));
+}
+
+/*
+ * RealView PBXCore AMBA devices
+ */
+
+#define GPIO2_IRQ { IRQ_PBX_GPIO2, NO_IRQ }
+#define GPIO2_DMA { 0, 0 }
+#define GPIO3_IRQ { IRQ_PBX_GPIO3, NO_IRQ }
+#define GPIO3_DMA { 0, 0 }
+#define AACI_IRQ { IRQ_PBX_AACI, NO_IRQ }
+#define AACI_DMA { 0x80, 0x81 }
+#define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B }
+#define MMCI0_DMA { 0x84, 0 }
+#define KMI0_IRQ { IRQ_PBX_KMI0, NO_IRQ }
+#define KMI0_DMA { 0, 0 }
+#define KMI1_IRQ { IRQ_PBX_KMI1, NO_IRQ }
+#define KMI1_DMA { 0, 0 }
+#define PBX_SMC_IRQ { NO_IRQ, NO_IRQ }
+#define PBX_SMC_DMA { 0, 0 }
+#define MPMC_IRQ { NO_IRQ, NO_IRQ }
+#define MPMC_DMA { 0, 0 }
+#define PBX_CLCD_IRQ { IRQ_PBX_CLCD, NO_IRQ }
+#define PBX_CLCD_DMA { 0, 0 }
+#define DMAC_IRQ { IRQ_PBX_DMAC, NO_IRQ }
+#define DMAC_DMA { 0, 0 }
+#define SCTL_IRQ { NO_IRQ, NO_IRQ }
+#define SCTL_DMA { 0, 0 }
+#define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG, NO_IRQ }
+#define PBX_WATCHDOG_DMA { 0, 0 }
+#define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0, NO_IRQ }
+#define PBX_GPIO0_DMA { 0, 0 }
+#define GPIO1_IRQ { IRQ_PBX_GPIO1, NO_IRQ }
+#define GPIO1_DMA { 0, 0 }
+#define PBX_RTC_IRQ { IRQ_PBX_RTC, NO_IRQ }
+#define PBX_RTC_DMA { 0, 0 }
+#define SCI_IRQ { IRQ_PBX_SCI, NO_IRQ }
+#define SCI_DMA { 7, 6 }
+#define PBX_UART0_IRQ { IRQ_PBX_UART0, NO_IRQ }
+#define PBX_UART0_DMA { 15, 14 }
+#define PBX_UART1_IRQ { IRQ_PBX_UART1, NO_IRQ }
+#define PBX_UART1_DMA { 13, 12 }
+#define PBX_UART2_IRQ { IRQ_PBX_UART2, NO_IRQ }
+#define PBX_UART2_DMA { 11, 10 }
+#define PBX_UART3_IRQ { IRQ_PBX_UART3, NO_IRQ }
+#define PBX_UART3_DMA { 0x86, 0x87 }
+#define PBX_SSP_IRQ { IRQ_PBX_SSP, NO_IRQ }
+#define PBX_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", PBX_UART3, NULL);
+
+/* DevChip Primecells */
+AMBA_DEVICE(smc, "dev:00", PBX_SMC, NULL);
+AMBA_DEVICE(sctl, "dev:e0", SCTL, NULL);
+AMBA_DEVICE(wdog, "dev:e1", PBX_WATCHDOG, NULL);
+AMBA_DEVICE(gpio0, "dev:e4", PBX_GPIO0, NULL);
+AMBA_DEVICE(gpio1, "dev:e5", GPIO1, NULL);
+AMBA_DEVICE(gpio2, "dev:e6", GPIO2, NULL);
+AMBA_DEVICE(rtc, "dev:e8", PBX_RTC, NULL);
+AMBA_DEVICE(sci0, "dev:f0", SCI, NULL);
+AMBA_DEVICE(uart0, "dev:f1", PBX_UART0, NULL);
+AMBA_DEVICE(uart1, "dev:f2", PBX_UART1, NULL);
+AMBA_DEVICE(uart2, "dev:f3", PBX_UART2, NULL);
+AMBA_DEVICE(ssp0, "dev:f4", PBX_SSP, NULL);
+
+/* Primecells on the NEC ISSP chip */
+AMBA_DEVICE(clcd, "issp:20", PBX_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-X platform devices
+ */
+static struct resource realview_pbx_flash_resources[] = {
+ [0] = {
+ .start = REALVIEW_PBX_FLASH0_BASE,
+ .end = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = REALVIEW_PBX_FLASH1_BASE,
+ .end = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct resource realview_pbx_smsc911x_resources[] = {
+ [0] = {
+ .start = REALVIEW_PBX_ETH_BASE,
+ .end = REALVIEW_PBX_ETH_BASE + SZ_64K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_PBX_ETH,
+ .end = IRQ_PBX_ETH,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource realview_pbx_isp1761_resources[] = {
+ [0] = {
+ .start = REALVIEW_PBX_USB_BASE,
+ .end = REALVIEW_PBX_USB_BASE + SZ_128K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_PBX_USB,
+ .end = IRQ_PBX_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static void __init gic_init_irq(void)
+{
+ /* ARM PBX on-board GIC */
+ if (core_tile_pbx11mp() || core_tile_pbxa9mp()) {
+ gic_cpu_base_addr = __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE);
+ gic_dist_init(0, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE),
+ 29);
+ gic_cpu_init(0, __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE));
+ } else {
+ gic_cpu_base_addr = __io_address(REALVIEW_PBX_GIC_CPU_BASE);
+ gic_dist_init(0, __io_address(REALVIEW_PBX_GIC_DIST_BASE),
+ IRQ_PBX_GIC_START);
+ gic_cpu_init(0, __io_address(REALVIEW_PBX_GIC_CPU_BASE));
+ }
+}
+
+static void __init realview_pbx_timer_init(void)
+{
+ timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE);
+ timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20;
+ timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE);
+ timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20;
+
+#ifdef CONFIG_LOCAL_TIMERS
+ if (core_tile_pbx11mp() || core_tile_pbxa9mp())
+ twd_base = __io_address(REALVIEW_PBX_TILE_TWD_BASE);
+#endif
+ realview_timer_init(IRQ_PBX_TIMER0_1);
+}
+
+static struct sys_timer realview_pbx_timer = {
+ .init = realview_pbx_timer_init,
+};
+
+static void __init realview_pbx_init(void)
+{
+ int i;
+
+#ifdef CONFIG_CACHE_L2X0
+ if (core_tile_pbxa9mp()) {
+ void __iomem *l2x0_base =
+ __io_address(REALVIEW_PBX_TILE_L220_BASE);
+
+ /* set RAM latencies to 1 cycle for eASIC */
+ writel(0, l2x0_base + L2X0_TAG_LATENCY_CTRL);
+ writel(0, l2x0_base + L2X0_DATA_LATENCY_CTRL);
+
+ /* 16KB way size, 8-way associativity, parity disabled
+ * Bits: .. 0 0 0 0 1 00 1 0 1 001 0 000 0 .... .... .... */
+ l2x0_init(l2x0_base, 0x02520000, 0xc0000fff);
+ }
+#endif
+
+ realview_flash_register(realview_pbx_flash_resources,
+ ARRAY_SIZE(realview_pbx_flash_resources));
+ realview_eth_register(NULL, realview_pbx_smsc911x_resources);
+ platform_device_register(&realview_i2c_device);
+ platform_device_register(&realview_cf_device);
+ realview_usb_register(realview_pbx_isp1761_resources);
+
+ 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_PBX, "ARM-RealView PBX")
+ /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
+ .phys_io = REALVIEW_PBX_UART0_BASE,
+ .io_pg_offst = (IO_ADDRESS(REALVIEW_PBX_UART0_BASE) >> 18) & 0xfffc,
+ .boot_params = PHYS_OFFSET + 0x00000100,
+ .map_io = realview_pbx_map_io,
+ .init_irq = gic_init_irq,
+ .timer = &realview_pbx_timer,
+ .init_machine = realview_pbx_init,
+MACHINE_END