mirror of https://gitee.com/openkylin/linux.git
409 lines
11 KiB
C
409 lines
11 KiB
C
/*
|
|
* 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/device.h>
|
|
#include <linux/amba/bus.h>
|
|
#include <linux/amba/pl061.h>
|
|
#include <linux/amba/mmci.h>
|
|
#include <linux/amba/pl022.h>
|
|
#include <linux/io.h>
|
|
#include <linux/irqchip/arm-gic.h>
|
|
#include <linux/platform_data/clk-realview.h>
|
|
#include <linux/reboot.h>
|
|
#include <linux/memblock.h>
|
|
|
|
#include <asm/irq.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/smp_twd.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/hardware/cache-l2x0.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.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_SCU_BASE),
|
|
.pfn = __phys_to_pfn(REALVIEW_PBX_TILE_SCU_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));
|
|
}
|
|
|
|
static struct pl061_platform_data gpio0_plat_data = {
|
|
.gpio_base = 0,
|
|
};
|
|
|
|
static struct pl061_platform_data gpio1_plat_data = {
|
|
.gpio_base = 8,
|
|
};
|
|
|
|
static struct pl061_platform_data gpio2_plat_data = {
|
|
.gpio_base = 16,
|
|
};
|
|
|
|
static struct pl022_ssp_controller ssp0_plat_data = {
|
|
.bus_id = 0,
|
|
.enable_dma = 0,
|
|
.num_chipselect = 1,
|
|
};
|
|
|
|
/*
|
|
* RealView PBXCore AMBA devices
|
|
*/
|
|
|
|
#define GPIO2_IRQ { IRQ_PBX_GPIO2 }
|
|
#define GPIO3_IRQ { IRQ_PBX_GPIO3 }
|
|
#define AACI_IRQ { IRQ_PBX_AACI }
|
|
#define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B }
|
|
#define KMI0_IRQ { IRQ_PBX_KMI0 }
|
|
#define KMI1_IRQ { IRQ_PBX_KMI1 }
|
|
#define PBX_SMC_IRQ { }
|
|
#define MPMC_IRQ { }
|
|
#define PBX_CLCD_IRQ { IRQ_PBX_CLCD }
|
|
#define DMAC_IRQ { IRQ_PBX_DMAC }
|
|
#define SCTL_IRQ { }
|
|
#define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG }
|
|
#define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0 }
|
|
#define GPIO1_IRQ { IRQ_PBX_GPIO1 }
|
|
#define PBX_RTC_IRQ { IRQ_PBX_RTC }
|
|
#define SCI_IRQ { IRQ_PBX_SCI }
|
|
#define PBX_UART0_IRQ { IRQ_PBX_UART0 }
|
|
#define PBX_UART1_IRQ { IRQ_PBX_UART1 }
|
|
#define PBX_UART2_IRQ { IRQ_PBX_UART2 }
|
|
#define PBX_UART3_IRQ { IRQ_PBX_UART3 }
|
|
#define PBX_SSP_IRQ { IRQ_PBX_SSP }
|
|
|
|
/* FPGA Primecells */
|
|
APB_DEVICE(aaci, "fpga:aaci", AACI, NULL);
|
|
APB_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
|
|
APB_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
|
|
APB_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
|
|
APB_DEVICE(uart3, "fpga:uart3", PBX_UART3, NULL);
|
|
|
|
/* DevChip Primecells */
|
|
AHB_DEVICE(smc, "dev:smc", PBX_SMC, NULL);
|
|
AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL);
|
|
APB_DEVICE(wdog, "dev:wdog", PBX_WATCHDOG, NULL);
|
|
APB_DEVICE(gpio0, "dev:gpio0", PBX_GPIO0, &gpio0_plat_data);
|
|
APB_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
|
|
APB_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
|
|
APB_DEVICE(rtc, "dev:rtc", PBX_RTC, NULL);
|
|
APB_DEVICE(sci0, "dev:sci0", SCI, NULL);
|
|
APB_DEVICE(uart0, "dev:uart0", PBX_UART0, NULL);
|
|
APB_DEVICE(uart1, "dev:uart1", PBX_UART1, NULL);
|
|
APB_DEVICE(uart2, "dev:uart2", PBX_UART2, NULL);
|
|
APB_DEVICE(ssp0, "dev:ssp0", PBX_SSP, &ssp0_plat_data);
|
|
|
|
/* Primecells on the NEC ISSP chip */
|
|
AHB_DEVICE(clcd, "issp:clcd", PBX_CLCD, &clcd_plat_data);
|
|
AHB_DEVICE(dmac, "issp:dmac", 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 struct resource pmu_resources[] = {
|
|
[0] = {
|
|
.start = IRQ_PBX_PMU_CPU0,
|
|
.end = IRQ_PBX_PMU_CPU0,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
[1] = {
|
|
.start = IRQ_PBX_PMU_CPU1,
|
|
.end = IRQ_PBX_PMU_CPU1,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
[2] = {
|
|
.start = IRQ_PBX_PMU_CPU2,
|
|
.end = IRQ_PBX_PMU_CPU2,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
[3] = {
|
|
.start = IRQ_PBX_PMU_CPU3,
|
|
.end = IRQ_PBX_PMU_CPU3,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device pmu_device = {
|
|
.name = "armv7-pmu",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(pmu_resources),
|
|
.resource = pmu_resources,
|
|
};
|
|
|
|
static void __init gic_init_irq(void)
|
|
{
|
|
/* ARM PBX on-board GIC */
|
|
if (core_tile_pbx11mp() || core_tile_pbxa9mp()) {
|
|
gic_init(0, 29, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE),
|
|
__io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE));
|
|
} else {
|
|
gic_init(0, IRQ_PBX_GIC_START,
|
|
__io_address(REALVIEW_PBX_GIC_DIST_BASE),
|
|
__io_address(REALVIEW_PBX_GIC_CPU_BASE));
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_HAVE_ARM_TWD
|
|
static DEFINE_TWD_LOCAL_TIMER(twd_local_timer,
|
|
REALVIEW_PBX_TILE_TWD_BASE,
|
|
IRQ_LOCALTIMER);
|
|
|
|
static void __init realview_pbx_twd_init(void)
|
|
{
|
|
int err = twd_local_timer_register(&twd_local_timer);
|
|
if (err)
|
|
pr_err("twd_local_timer_register failed %d\n", err);
|
|
}
|
|
#else
|
|
#define realview_pbx_twd_init() do { } while(0)
|
|
#endif
|
|
|
|
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;
|
|
|
|
realview_clk_init(__io_address(REALVIEW_SYS_BASE), false);
|
|
realview_timer_init(IRQ_PBX_TIMER0_1);
|
|
realview_pbx_twd_init();
|
|
}
|
|
|
|
static void realview_pbx_fixup(struct tag *tags, char **from)
|
|
{
|
|
#ifdef CONFIG_SPARSEMEM
|
|
/*
|
|
* Memory configuration with SPARSEMEM enabled on RealView PBX (see
|
|
* asm/mach/memory.h for more information).
|
|
*/
|
|
|
|
memblock_add(0, SZ_256M);
|
|
memblock_add(0x20000000, SZ_512M);
|
|
memblock_add(0x80000000, SZ_256M);
|
|
#else
|
|
realview_fixup(tags, from);
|
|
#endif
|
|
}
|
|
|
|
static void realview_pbx_restart(enum reboot_mode mode, const char *cmd)
|
|
{
|
|
void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
|
|
void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
|
|
|
|
/*
|
|
* To reset, we hit the on-board reset register
|
|
* in the system FPGA
|
|
*/
|
|
__raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
|
|
__raw_writel(0x00F0, reset_ctrl);
|
|
__raw_writel(0x00F4, reset_ctrl);
|
|
dsb();
|
|
}
|
|
|
|
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 + L310_TAG_LATENCY_CTRL);
|
|
writel(0, l2x0_base + L310_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);
|
|
platform_device_register(&pmu_device);
|
|
}
|
|
#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);
|
|
platform_device_register(&realview_leds_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);
|
|
}
|
|
}
|
|
|
|
MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX")
|
|
/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
|
|
.atag_offset = 0x100,
|
|
.smp = smp_ops(realview_smp_ops),
|
|
.fixup = realview_pbx_fixup,
|
|
.map_io = realview_pbx_map_io,
|
|
.init_early = realview_init_early,
|
|
.init_irq = gic_init_irq,
|
|
.init_time = realview_pbx_timer_init,
|
|
.init_machine = realview_pbx_init,
|
|
#ifdef CONFIG_ZONE_DMA
|
|
.dma_zone_size = SZ_256M,
|
|
#endif
|
|
.restart = realview_pbx_restart,
|
|
MACHINE_END
|