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alistair23-linux/arch/arm/mach-realview/realview_pb11mp.c
Linus Torvalds 9cd11c0c47 ARM: soc: multiplatform enablement 
This is a pretty significant branch. It's the introduction of the
 first multiplatform support on ARM, and with this (and the later
 branch) merged, it is now possible to build one kernel that contains
 support for highbank, vexpress, mvebu, socfpga, and picoxcell. More
 platforms will be convered over in the next few releases.
 
 Two critical last things had to be done for this to be practical and
 possible:
 * Today each platform has its own include directory under
   mach-<mach>/include/mach/*, and traditionally that is where a lot of
   driver/platform shared definitions have gone, such as platform data
   structures. They now need to move out to a common location instead,
   and this branch moves a large number of those out to
   include/linux/platform_data.
 * Each platform used to list the device trees to compile for its
   boards in mach-<mach>/Makefile.boot.
 
 Both of the above changes will mean that there are some merge
 conflicts to come (and some to resolve here). It's a one-time move and
 once it settles in, we should be good for quite a while. Sorry for the
 overhead.
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Merge tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM soc multiplatform enablement from Olof Johansson:
 "This is a pretty significant branch.  It's the introduction of the
  first multiplatform support on ARM, and with this (and the later
  branch) merged, it is now possible to build one kernel that contains
  support for highbank, vexpress, mvebu, socfpga, and picoxcell.  More
  platforms will be convered over in the next few releases.

  Two critical last things had to be done for this to be practical and
  possible:
   * Today each platform has its own include directory under
     mach-<mach>/include/mach/*, and traditionally that is where a lot
     of driver/platform shared definitions have gone, such as platform
     data structures.  They now need to move out to a common location
     instead, and this branch moves a large number of those out to
     include/linux/platform_data.
   * Each platform used to list the device trees to compile for its
     boards in mach-<mach>/Makefile.boot.

  Both of the above changes will mean that there are some merge
  conflicts to come (and some to resolve here).  It's a one-time move
  and once it settles in, we should be good for quite a while.  Sorry
  for the overhead."

Fix conflicts as per Olof.

* tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits)
  ARM: add v7 multi-platform defconfig
  ARM: msm: Move core.h contents into common.h
  ARM: highbank: call highbank_pm_init from .init_machine
  ARM: dtb: move all dtb targets to common Makefile
  ARM: spear: move platform_data definitions
  ARM: samsung: move platform_data definitions
  ARM: orion: move platform_data definitions
  ARM: vexpress: convert to multi-platform
  ARM: initial multiplatform support
  ARM: mvebu: move armada-370-xp.h in mach dir
  ARM: vexpress: remove dependency on mach/* headers
  ARM: picoxcell: remove dependency on mach/* headers
  ARM: move all dtb targets out of Makefile.boot
  ARM: picoxcell: move debug macros to include/debug
  ARM: socfpga: move debug macros to include/debug
  ARM: mvebu: move debug macros to include/debug
  ARM: vexpress: move debug macros to include/debug
  ARM: highbank: move debug macros to include/debug
  ARM: move debug macros to common location
  ARM: make mach/gpio.h headers optional
  ...
2012-10-01 19:11:38 -07:00

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/*
* linux/arch/arm/mach-realview/realview_pb11mp.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/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/platform_data/clk-realview.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/pgtable.h>
#include <asm/hardware/gic.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/smp_twd.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <mach/board-pb11mp.h>
#include <mach/irqs.h>
#include "core.h"
static struct map_desc realview_pb11mp_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_PB11MP_GIC_CPU_BASE),
.pfn = __phys_to_pfn(REALVIEW_PB11MP_GIC_CPU_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = IO_ADDRESS(REALVIEW_PB11MP_GIC_DIST_BASE),
.pfn = __phys_to_pfn(REALVIEW_PB11MP_GIC_DIST_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, { /* Maps the SCU, GIC CPU interface, TWD, GIC DIST */
.virtual = IO_ADDRESS(REALVIEW_TC11MP_PRIV_MEM_BASE),
.pfn = __phys_to_pfn(REALVIEW_TC11MP_PRIV_MEM_BASE),
.length = REALVIEW_TC11MP_PRIV_MEM_SIZE,
.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_PB11MP_TIMER0_1_BASE),
.pfn = __phys_to_pfn(REALVIEW_PB11MP_TIMER0_1_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = IO_ADDRESS(REALVIEW_PB11MP_TIMER2_3_BASE),
.pfn = __phys_to_pfn(REALVIEW_PB11MP_TIMER2_3_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = IO_ADDRESS(REALVIEW_TC11MP_L220_BASE),
.pfn = __phys_to_pfn(REALVIEW_TC11MP_L220_BASE),
.length = SZ_8K,
.type = MT_DEVICE,
},
#ifdef CONFIG_DEBUG_LL
{
.virtual = IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE),
.pfn = __phys_to_pfn(REALVIEW_PB11MP_UART0_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
},
#endif
};
static void __init realview_pb11mp_map_io(void)
{
iotable_init(realview_pb11mp_io_desc, ARRAY_SIZE(realview_pb11mp_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 PB11MPCore AMBA devices
*/
#define GPIO2_IRQ { IRQ_PB11MP_GPIO2 }
#define GPIO3_IRQ { IRQ_PB11MP_GPIO3 }
#define AACI_IRQ { IRQ_TC11MP_AACI }
#define MMCI0_IRQ { IRQ_TC11MP_MMCI0A, IRQ_TC11MP_MMCI0B }
#define KMI0_IRQ { IRQ_TC11MP_KMI0 }
#define KMI1_IRQ { IRQ_TC11MP_KMI1 }
#define PB11MP_SMC_IRQ { }
#define MPMC_IRQ { }
#define PB11MP_CLCD_IRQ { IRQ_PB11MP_CLCD }
#define DMAC_IRQ { IRQ_PB11MP_DMAC }
#define SCTL_IRQ { }
#define PB11MP_WATCHDOG_IRQ { IRQ_PB11MP_WATCHDOG }
#define PB11MP_GPIO0_IRQ { IRQ_PB11MP_GPIO0 }
#define GPIO1_IRQ { IRQ_PB11MP_GPIO1 }
#define PB11MP_RTC_IRQ { IRQ_TC11MP_RTC }
#define SCI_IRQ { IRQ_PB11MP_SCI }
#define PB11MP_UART0_IRQ { IRQ_TC11MP_UART0 }
#define PB11MP_UART1_IRQ { IRQ_TC11MP_UART1 }
#define PB11MP_UART2_IRQ { IRQ_PB11MP_UART2 }
#define PB11MP_UART3_IRQ { IRQ_PB11MP_UART3 }
#define PB11MP_SSP_IRQ { IRQ_PB11MP_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", PB11MP_UART3, NULL);
/* DevChip Primecells */
AHB_DEVICE(smc, "dev:smc", PB11MP_SMC, NULL);
AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL);
APB_DEVICE(wdog, "dev:wdog", PB11MP_WATCHDOG, NULL);
APB_DEVICE(gpio0, "dev:gpio0", PB11MP_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", PB11MP_RTC, NULL);
APB_DEVICE(sci0, "dev:sci0", SCI, NULL);
APB_DEVICE(uart0, "dev:uart0", PB11MP_UART0, NULL);
APB_DEVICE(uart1, "dev:uart1", PB11MP_UART1, NULL);
APB_DEVICE(uart2, "dev:uart2", PB11MP_UART2, NULL);
APB_DEVICE(ssp0, "dev:ssp0", PB11MP_SSP, &ssp0_plat_data);
/* Primecells on the NEC ISSP chip */
AHB_DEVICE(clcd, "issp:clcd", PB11MP_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 PB11MPCore platform devices
*/
static struct resource realview_pb11mp_flash_resource[] = {
[0] = {
.start = REALVIEW_PB11MP_FLASH0_BASE,
.end = REALVIEW_PB11MP_FLASH0_BASE + REALVIEW_PB11MP_FLASH0_SIZE - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = REALVIEW_PB11MP_FLASH1_BASE,
.end = REALVIEW_PB11MP_FLASH1_BASE + REALVIEW_PB11MP_FLASH1_SIZE - 1,
.flags = IORESOURCE_MEM,
},
};
static struct resource realview_pb11mp_smsc911x_resources[] = {
[0] = {
.start = REALVIEW_PB11MP_ETH_BASE,
.end = REALVIEW_PB11MP_ETH_BASE + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_TC11MP_ETH,
.end = IRQ_TC11MP_ETH,
.flags = IORESOURCE_IRQ,
},
};
static struct resource realview_pb11mp_isp1761_resources[] = {
[0] = {
.start = REALVIEW_PB11MP_USB_BASE,
.end = REALVIEW_PB11MP_USB_BASE + SZ_128K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_TC11MP_USB,
.end = IRQ_TC11MP_USB,
.flags = IORESOURCE_IRQ,
},
};
static struct resource pmu_resources[] = {
[0] = {
.start = IRQ_TC11MP_PMU_CPU0,
.end = IRQ_TC11MP_PMU_CPU0,
.flags = IORESOURCE_IRQ,
},
[1] = {
.start = IRQ_TC11MP_PMU_CPU1,
.end = IRQ_TC11MP_PMU_CPU1,
.flags = IORESOURCE_IRQ,
},
[2] = {
.start = IRQ_TC11MP_PMU_CPU2,
.end = IRQ_TC11MP_PMU_CPU2,
.flags = IORESOURCE_IRQ,
},
[3] = {
.start = IRQ_TC11MP_PMU_CPU3,
.end = IRQ_TC11MP_PMU_CPU3,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device pmu_device = {
.name = "arm-pmu",
.id = -1,
.num_resources = ARRAY_SIZE(pmu_resources),
.resource = pmu_resources,
};
static void __init gic_init_irq(void)
{
unsigned int pldctrl;
/* new irq mode with no DCC */
writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
pldctrl |= 2 << 22;
writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
/* ARM11MPCore test chip GIC, primary */
gic_init(0, 29, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE),
__io_address(REALVIEW_TC11MP_GIC_CPU_BASE));
/* board GIC, secondary */
gic_init(1, IRQ_PB11MP_GIC_START,
__io_address(REALVIEW_PB11MP_GIC_DIST_BASE),
__io_address(REALVIEW_PB11MP_GIC_CPU_BASE));
gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1);
}
#ifdef CONFIG_HAVE_ARM_TWD
static DEFINE_TWD_LOCAL_TIMER(twd_local_timer,
REALVIEW_TC11MP_TWD_BASE,
IRQ_LOCALTIMER);
static void __init realview_pb11mp_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_pb11mp_twd_init() do {} while(0)
#endif
static void __init realview_pb11mp_timer_init(void)
{
timer0_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE);
timer1_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE) + 0x20;
timer2_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE);
timer3_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE) + 0x20;
realview_clk_init(__io_address(REALVIEW_SYS_BASE), false);
realview_timer_init(IRQ_TC11MP_TIMER0_1);
realview_pb11mp_twd_init();
}
static struct sys_timer realview_pb11mp_timer = {
.init = realview_pb11mp_timer_init,
};
static void realview_pb11mp_restart(char 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(0x0000, reset_ctrl);
__raw_writel(0x0004, reset_ctrl);
dsb();
}
static void __init realview_pb11mp_init(void)
{
int i;
#ifdef CONFIG_CACHE_L2X0
/* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
* Bits: .... ...0 0111 1001 0000 .... .... .... */
l2x0_init(__io_address(REALVIEW_TC11MP_L220_BASE), 0x00790000, 0xfe000fff);
#endif
realview_flash_register(realview_pb11mp_flash_resource,
ARRAY_SIZE(realview_pb11mp_flash_resource));
realview_eth_register(NULL, realview_pb11mp_smsc911x_resources);
platform_device_register(&realview_i2c_device);
platform_device_register(&realview_cf_device);
realview_usb_register(realview_pb11mp_isp1761_resources);
platform_device_register(&pmu_device);
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_PB11MP, "ARM-RealView PB11MPCore")
/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
.atag_offset = 0x100,
.smp = smp_ops(realview_smp_ops),
.fixup = realview_fixup,
.map_io = realview_pb11mp_map_io,
.init_early = realview_init_early,
.init_irq = gic_init_irq,
.timer = &realview_pb11mp_timer,
.handle_irq = gic_handle_irq,
.init_machine = realview_pb11mp_init,
#ifdef CONFIG_ZONE_DMA
.dma_zone_size = SZ_256M,
#endif
.restart = realview_pb11mp_restart,
MACHINE_END
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