mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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9cd11c0c47
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. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJQaO7aAAoJEIwa5zzehBx3bUIP/02U8PhkHJJrrowyIsWRBOql 7LPJ53PRRgrpBdmEGzFD3TO3zaNyrjQRbYgNDvzHMO6NAMNvdRFouuWYjO11/tuB i32zssXCC+eUOEgbAo/U/lYq+UOvqw9gv6mU+3+i3OcGEhdKOaoT/DSLPQC4hoDm 222TeLfFB3HJXu5n720dEQ9V3fO6TS1+bbh8TU3cjHqzceXsOrffZqOA5CQxUcRr KWwOjA0nALDwWcqgv45GJNwY3GTyAQ/hPMQavnuWK0voJ+qUYk5HftKocAK7C+py 0T0OFOAHTwtyhvzJBxLC84M6Ox465BYXyeNjIB+2nG/Um9+mDoP0dnWpGy4c7DMU P5hyqbeLGeqjUXQuYtRmgMMc3UeHKoUGAfXW9eMsjLa6/M4NLGv//7E7LbZPpgMZ obkjwuesmcaYn/FRyj/yFmC35YlF4oCLziVzEtURZw3eKHHSUlhkTDSMNnkcZ0kZ Vv7kFxnD2Y46ixiwSJv30ErQnVkgI3MdqDlDxkE8r5+phYuK4gCrNaJtiwRh/oNw cFhpPxKuA0sJ9b6YRTzjC45eT/XZomEEr/uifCFeRNaCquyjYP00Mm8F0flSqwx9 zi+emzPAwNmk1bvxMUM/idGnaj0V4p+BAYUAvkbSoqU1p1flzyhU88fGTSIyKOt6 K5TCDS2v5hrVykK9TDwl =Tc6y -----END PGP SIGNATURE----- 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 ...
378 lines
11 KiB
C
378 lines
11 KiB
C
/*
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* linux/arch/arm/mach-realview/realview_pb11mp.c
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*
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* Copyright (C) 2008 ARM Limited
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* Copyright (C) 2000 Deep Blue Solutions Ltd
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/device.h>
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#include <linux/amba/bus.h>
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#include <linux/amba/pl061.h>
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#include <linux/amba/mmci.h>
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#include <linux/amba/pl022.h>
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#include <linux/io.h>
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#include <linux/platform_data/clk-realview.h>
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#include <mach/hardware.h>
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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#include <asm/pgtable.h>
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#include <asm/hardware/gic.h>
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#include <asm/hardware/cache-l2x0.h>
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#include <asm/smp_twd.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/flash.h>
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#include <asm/mach/map.h>
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#include <asm/mach/time.h>
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#include <mach/board-pb11mp.h>
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#include <mach/irqs.h>
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#include "core.h"
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static struct map_desc realview_pb11mp_io_desc[] __initdata = {
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{
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.virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
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.pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = IO_ADDRESS(REALVIEW_PB11MP_GIC_CPU_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB11MP_GIC_CPU_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = IO_ADDRESS(REALVIEW_PB11MP_GIC_DIST_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB11MP_GIC_DIST_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, { /* Maps the SCU, GIC CPU interface, TWD, GIC DIST */
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.virtual = IO_ADDRESS(REALVIEW_TC11MP_PRIV_MEM_BASE),
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.pfn = __phys_to_pfn(REALVIEW_TC11MP_PRIV_MEM_BASE),
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.length = REALVIEW_TC11MP_PRIV_MEM_SIZE,
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.type = MT_DEVICE,
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}, {
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.virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
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.pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = IO_ADDRESS(REALVIEW_PB11MP_TIMER0_1_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB11MP_TIMER0_1_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = IO_ADDRESS(REALVIEW_PB11MP_TIMER2_3_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB11MP_TIMER2_3_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = IO_ADDRESS(REALVIEW_TC11MP_L220_BASE),
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.pfn = __phys_to_pfn(REALVIEW_TC11MP_L220_BASE),
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.length = SZ_8K,
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.type = MT_DEVICE,
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},
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#ifdef CONFIG_DEBUG_LL
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{
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.virtual = IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB11MP_UART0_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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},
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#endif
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};
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static void __init realview_pb11mp_map_io(void)
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{
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iotable_init(realview_pb11mp_io_desc, ARRAY_SIZE(realview_pb11mp_io_desc));
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}
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static struct pl061_platform_data gpio0_plat_data = {
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.gpio_base = 0,
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};
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static struct pl061_platform_data gpio1_plat_data = {
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.gpio_base = 8,
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};
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static struct pl061_platform_data gpio2_plat_data = {
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.gpio_base = 16,
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};
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static struct pl022_ssp_controller ssp0_plat_data = {
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.bus_id = 0,
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.enable_dma = 0,
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.num_chipselect = 1,
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};
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/*
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* RealView PB11MPCore AMBA devices
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*/
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#define GPIO2_IRQ { IRQ_PB11MP_GPIO2 }
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#define GPIO3_IRQ { IRQ_PB11MP_GPIO3 }
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#define AACI_IRQ { IRQ_TC11MP_AACI }
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#define MMCI0_IRQ { IRQ_TC11MP_MMCI0A, IRQ_TC11MP_MMCI0B }
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#define KMI0_IRQ { IRQ_TC11MP_KMI0 }
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#define KMI1_IRQ { IRQ_TC11MP_KMI1 }
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#define PB11MP_SMC_IRQ { }
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#define MPMC_IRQ { }
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#define PB11MP_CLCD_IRQ { IRQ_PB11MP_CLCD }
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#define DMAC_IRQ { IRQ_PB11MP_DMAC }
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#define SCTL_IRQ { }
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#define PB11MP_WATCHDOG_IRQ { IRQ_PB11MP_WATCHDOG }
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#define PB11MP_GPIO0_IRQ { IRQ_PB11MP_GPIO0 }
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#define GPIO1_IRQ { IRQ_PB11MP_GPIO1 }
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#define PB11MP_RTC_IRQ { IRQ_TC11MP_RTC }
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#define SCI_IRQ { IRQ_PB11MP_SCI }
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#define PB11MP_UART0_IRQ { IRQ_TC11MP_UART0 }
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#define PB11MP_UART1_IRQ { IRQ_TC11MP_UART1 }
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#define PB11MP_UART2_IRQ { IRQ_PB11MP_UART2 }
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#define PB11MP_UART3_IRQ { IRQ_PB11MP_UART3 }
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#define PB11MP_SSP_IRQ { IRQ_PB11MP_SSP }
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/* FPGA Primecells */
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APB_DEVICE(aaci, "fpga:aaci", AACI, NULL);
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APB_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
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APB_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
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APB_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
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APB_DEVICE(uart3, "fpga:uart3", PB11MP_UART3, NULL);
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/* DevChip Primecells */
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AHB_DEVICE(smc, "dev:smc", PB11MP_SMC, NULL);
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AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL);
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APB_DEVICE(wdog, "dev:wdog", PB11MP_WATCHDOG, NULL);
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APB_DEVICE(gpio0, "dev:gpio0", PB11MP_GPIO0, &gpio0_plat_data);
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APB_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
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APB_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
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APB_DEVICE(rtc, "dev:rtc", PB11MP_RTC, NULL);
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APB_DEVICE(sci0, "dev:sci0", SCI, NULL);
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APB_DEVICE(uart0, "dev:uart0", PB11MP_UART0, NULL);
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APB_DEVICE(uart1, "dev:uart1", PB11MP_UART1, NULL);
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APB_DEVICE(uart2, "dev:uart2", PB11MP_UART2, NULL);
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APB_DEVICE(ssp0, "dev:ssp0", PB11MP_SSP, &ssp0_plat_data);
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/* Primecells on the NEC ISSP chip */
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AHB_DEVICE(clcd, "issp:clcd", PB11MP_CLCD, &clcd_plat_data);
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AHB_DEVICE(dmac, "issp:dmac", DMAC, NULL);
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static struct amba_device *amba_devs[] __initdata = {
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&dmac_device,
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&uart0_device,
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&uart1_device,
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&uart2_device,
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&uart3_device,
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&smc_device,
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&clcd_device,
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&sctl_device,
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&wdog_device,
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&gpio0_device,
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&gpio1_device,
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&gpio2_device,
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&rtc_device,
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&sci0_device,
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&ssp0_device,
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&aaci_device,
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&mmc0_device,
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&kmi0_device,
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&kmi1_device,
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};
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/*
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* RealView PB11MPCore platform devices
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*/
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static struct resource realview_pb11mp_flash_resource[] = {
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[0] = {
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.start = REALVIEW_PB11MP_FLASH0_BASE,
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.end = REALVIEW_PB11MP_FLASH0_BASE + REALVIEW_PB11MP_FLASH0_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = REALVIEW_PB11MP_FLASH1_BASE,
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.end = REALVIEW_PB11MP_FLASH1_BASE + REALVIEW_PB11MP_FLASH1_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct resource realview_pb11mp_smsc911x_resources[] = {
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[0] = {
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.start = REALVIEW_PB11MP_ETH_BASE,
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.end = REALVIEW_PB11MP_ETH_BASE + SZ_64K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_TC11MP_ETH,
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.end = IRQ_TC11MP_ETH,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct resource realview_pb11mp_isp1761_resources[] = {
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[0] = {
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.start = REALVIEW_PB11MP_USB_BASE,
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.end = REALVIEW_PB11MP_USB_BASE + SZ_128K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_TC11MP_USB,
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.end = IRQ_TC11MP_USB,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct resource pmu_resources[] = {
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[0] = {
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.start = IRQ_TC11MP_PMU_CPU0,
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.end = IRQ_TC11MP_PMU_CPU0,
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.flags = IORESOURCE_IRQ,
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},
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[1] = {
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.start = IRQ_TC11MP_PMU_CPU1,
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.end = IRQ_TC11MP_PMU_CPU1,
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.flags = IORESOURCE_IRQ,
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},
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[2] = {
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.start = IRQ_TC11MP_PMU_CPU2,
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.end = IRQ_TC11MP_PMU_CPU2,
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.flags = IORESOURCE_IRQ,
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},
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[3] = {
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.start = IRQ_TC11MP_PMU_CPU3,
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.end = IRQ_TC11MP_PMU_CPU3,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device pmu_device = {
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.name = "arm-pmu",
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.id = -1,
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.num_resources = ARRAY_SIZE(pmu_resources),
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.resource = pmu_resources,
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};
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static void __init gic_init_irq(void)
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{
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unsigned int pldctrl;
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/* new irq mode with no DCC */
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writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
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pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
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pldctrl |= 2 << 22;
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writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
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writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
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/* ARM11MPCore test chip GIC, primary */
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gic_init(0, 29, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE),
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__io_address(REALVIEW_TC11MP_GIC_CPU_BASE));
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/* board GIC, secondary */
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gic_init(1, IRQ_PB11MP_GIC_START,
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__io_address(REALVIEW_PB11MP_GIC_DIST_BASE),
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__io_address(REALVIEW_PB11MP_GIC_CPU_BASE));
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gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1);
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}
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#ifdef CONFIG_HAVE_ARM_TWD
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static DEFINE_TWD_LOCAL_TIMER(twd_local_timer,
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REALVIEW_TC11MP_TWD_BASE,
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IRQ_LOCALTIMER);
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static void __init realview_pb11mp_twd_init(void)
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{
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int err = twd_local_timer_register(&twd_local_timer);
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if (err)
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pr_err("twd_local_timer_register failed %d\n", err);
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}
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#else
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#define realview_pb11mp_twd_init() do {} while(0)
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#endif
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static void __init realview_pb11mp_timer_init(void)
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{
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timer0_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE);
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timer1_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE) + 0x20;
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timer2_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE);
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timer3_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE) + 0x20;
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realview_clk_init(__io_address(REALVIEW_SYS_BASE), false);
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realview_timer_init(IRQ_TC11MP_TIMER0_1);
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realview_pb11mp_twd_init();
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}
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static struct sys_timer realview_pb11mp_timer = {
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.init = realview_pb11mp_timer_init,
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};
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static void realview_pb11mp_restart(char mode, const char *cmd)
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{
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void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
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void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
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/*
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* To reset, we hit the on-board reset register
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* in the system FPGA
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*/
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__raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
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__raw_writel(0x0000, reset_ctrl);
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__raw_writel(0x0004, reset_ctrl);
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dsb();
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}
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static void __init realview_pb11mp_init(void)
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{
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int i;
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#ifdef CONFIG_CACHE_L2X0
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/* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
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* Bits: .... ...0 0111 1001 0000 .... .... .... */
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l2x0_init(__io_address(REALVIEW_TC11MP_L220_BASE), 0x00790000, 0xfe000fff);
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#endif
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realview_flash_register(realview_pb11mp_flash_resource,
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ARRAY_SIZE(realview_pb11mp_flash_resource));
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realview_eth_register(NULL, realview_pb11mp_smsc911x_resources);
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platform_device_register(&realview_i2c_device);
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platform_device_register(&realview_cf_device);
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realview_usb_register(realview_pb11mp_isp1761_resources);
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platform_device_register(&pmu_device);
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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
|