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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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f8060f5446
This creates irqchip initialization infrastructure from Thomas Petazzoni. The VIC and GIC irqchip code is moved to drivers/irqchips and adapted to use the new infrastructure. All DT enabled platforms using GIC and VIC are converted over to use the new irqchip_init. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQEcBAABAgAGBQJQ8ZobAAoJEMhvYp4jgsXiihIH/2VvxmSHZb0e3jN6AR0B42b7 9EwX0IE0B23t91hNTwdzzmTJQYA7pMmWkgHNfd3vIeqSepJAmrVv/gp4iM9CtPwE KNh+kDWOK2ZsOH4Vb0lYRJHN8WQOIQHuCUr9+MdYLNOgf/pPL6G/Y9kv9A1e7fTC W+tFRjC5N1ilZMGyowX12L1wnwDk6kHzed6YV6bskC17cZ9/pg8PhSVbM4A/3kAv NXYKqbXJb+eCsWGXg/knZXOL6V9gBwvVYoe4O9X3nQ0226AWB9caad8l8tchAjRB fmrYF1tbkpOWPnLxhvQy5b5MJichJgTMJHh7RgiEcc/3f63kOljjlx4QKiqHvT0= =q7gm -----END PGP SIGNATURE----- Merge tag 'gic-vic-to-irqchip' of git://sources.calxeda.com/kernel/linux into next/cleanup From Rob Herring: Initial irqchip init infrastructure and GIC and VIC clean-ups This creates irqchip initialization infrastructure from Thomas Petazzoni. The VIC and GIC irqchip code is moved to drivers/irqchips and adapted to use the new infrastructure. All DT enabled platforms using GIC and VIC are converted over to use the new irqchip_init. * tag 'gic-vic-to-irqchip' of git://sources.calxeda.com/kernel/linux: irqchip: Move ARM vic.h to include/linux/irqchip/arm-vic.h ARM: picoxcell: use common irqchip_init function ARM: spear: use common irqchip_init function irqchip: Move ARM VIC to drivers/irqchip ARM: samsung: remove unused tick.h ARM: remove unneeded vic.h includes ARM: remove mach .handle_irq for VIC users ARM: VIC: set handle_arch_irq in VIC initialization ARM: VIC: shrink down vic.h irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.h ARM: use common irqchip_init for GIC init irqchip: Move ARM GIC to drivers/irqchip ARM: remove mach .handle_irq for GIC users ARM: GIC: set handle_arch_irq in GIC initialization ARM: GIC: remove direct use of gic_raise_softirq ARM: GIC: remove assembly ifdefs from gic.h ARM: mach-ux500: use SGI0 to wake up the other core arm: add set_handle_irq() to register the parent IRQ controller handler function irqchip: add basic infrastructure irqchip: add to the directories part of the IRQ subsystem in MAINTAINERS Fixed up massive merge conflicts with the timer cleanup due to adjacent changes: Signed-off-by: Olof Johansson <olof@lixom.net> Conflicts: arch/arm/mach-bcm/board_bcm.c arch/arm/mach-cns3xxx/cns3420vb.c arch/arm/mach-ep93xx/adssphere.c arch/arm/mach-ep93xx/edb93xx.c arch/arm/mach-ep93xx/gesbc9312.c arch/arm/mach-ep93xx/micro9.c arch/arm/mach-ep93xx/simone.c arch/arm/mach-ep93xx/snappercl15.c arch/arm/mach-ep93xx/ts72xx.c arch/arm/mach-ep93xx/vision_ep9307.c arch/arm/mach-highbank/highbank.c arch/arm/mach-imx/mach-imx6q.c arch/arm/mach-msm/board-dt-8960.c arch/arm/mach-netx/nxdb500.c arch/arm/mach-netx/nxdkn.c arch/arm/mach-netx/nxeb500hmi.c arch/arm/mach-nomadik/board-nhk8815.c arch/arm/mach-picoxcell/common.c arch/arm/mach-realview/realview_eb.c arch/arm/mach-realview/realview_pb1176.c arch/arm/mach-realview/realview_pb11mp.c arch/arm/mach-realview/realview_pba8.c arch/arm/mach-realview/realview_pbx.c arch/arm/mach-socfpga/socfpga.c arch/arm/mach-spear13xx/spear1310.c arch/arm/mach-spear13xx/spear1340.c arch/arm/mach-spear13xx/spear13xx.c arch/arm/mach-spear3xx/spear300.c arch/arm/mach-spear3xx/spear310.c arch/arm/mach-spear3xx/spear320.c arch/arm/mach-spear3xx/spear3xx.c arch/arm/mach-spear6xx/spear6xx.c arch/arm/mach-tegra/board-dt-tegra20.c arch/arm/mach-tegra/board-dt-tegra30.c arch/arm/mach-u300/core.c arch/arm/mach-ux500/board-mop500.c arch/arm/mach-ux500/cpu-db8500.c arch/arm/mach-versatile/versatile_ab.c arch/arm/mach-versatile/versatile_dt.c arch/arm/mach-versatile/versatile_pb.c arch/arm/mach-vexpress/v2m.c include/asm-generic/vmlinux.lds.h
253 lines
6.3 KiB
C
253 lines
6.3 KiB
C
/*
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* arch/arm/mach-ep93xx/ts72xx.c
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* Technologic Systems TS72xx SBC support.
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*
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* Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
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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 (at
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* your option) any later version.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/m48t86.h>
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#include <linux/mtd/nand.h>
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#include <linux/mtd/partitions.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach/map.h>
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#include <asm/mach/arch.h>
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#include "soc.h"
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#include "ts72xx.h"
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static struct map_desc ts72xx_io_desc[] __initdata = {
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{
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.virtual = (unsigned long)TS72XX_MODEL_VIRT_BASE,
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.pfn = __phys_to_pfn(TS72XX_MODEL_PHYS_BASE),
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.length = TS72XX_MODEL_SIZE,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)TS72XX_OPTIONS_VIRT_BASE,
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.pfn = __phys_to_pfn(TS72XX_OPTIONS_PHYS_BASE),
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.length = TS72XX_OPTIONS_SIZE,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)TS72XX_OPTIONS2_VIRT_BASE,
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.pfn = __phys_to_pfn(TS72XX_OPTIONS2_PHYS_BASE),
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.length = TS72XX_OPTIONS2_SIZE,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)TS72XX_RTC_INDEX_VIRT_BASE,
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.pfn = __phys_to_pfn(TS72XX_RTC_INDEX_PHYS_BASE),
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.length = TS72XX_RTC_INDEX_SIZE,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)TS72XX_RTC_DATA_VIRT_BASE,
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.pfn = __phys_to_pfn(TS72XX_RTC_DATA_PHYS_BASE),
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.length = TS72XX_RTC_DATA_SIZE,
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.type = MT_DEVICE,
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}
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};
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static void __init ts72xx_map_io(void)
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{
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ep93xx_map_io();
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iotable_init(ts72xx_io_desc, ARRAY_SIZE(ts72xx_io_desc));
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}
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/*************************************************************************
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* NAND flash
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*************************************************************************/
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#define TS72XX_NAND_CONTROL_ADDR_LINE 22 /* 0xN0400000 */
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#define TS72XX_NAND_BUSY_ADDR_LINE 23 /* 0xN0800000 */
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static void ts72xx_nand_hwcontrol(struct mtd_info *mtd,
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int cmd, unsigned int ctrl)
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{
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struct nand_chip *chip = mtd->priv;
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if (ctrl & NAND_CTRL_CHANGE) {
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void __iomem *addr = chip->IO_ADDR_R;
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unsigned char bits;
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addr += (1 << TS72XX_NAND_CONTROL_ADDR_LINE);
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bits = __raw_readb(addr) & ~0x07;
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bits |= (ctrl & NAND_NCE) << 2; /* bit 0 -> bit 2 */
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bits |= (ctrl & NAND_CLE); /* bit 1 -> bit 1 */
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bits |= (ctrl & NAND_ALE) >> 2; /* bit 2 -> bit 0 */
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__raw_writeb(bits, addr);
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}
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if (cmd != NAND_CMD_NONE)
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__raw_writeb(cmd, chip->IO_ADDR_W);
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}
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static int ts72xx_nand_device_ready(struct mtd_info *mtd)
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{
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struct nand_chip *chip = mtd->priv;
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void __iomem *addr = chip->IO_ADDR_R;
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addr += (1 << TS72XX_NAND_BUSY_ADDR_LINE);
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return !!(__raw_readb(addr) & 0x20);
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}
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#define TS72XX_BOOTROM_PART_SIZE (SZ_16K)
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#define TS72XX_REDBOOT_PART_SIZE (SZ_2M + SZ_1M)
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static struct mtd_partition ts72xx_nand_parts[] = {
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{
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.name = "TS-BOOTROM",
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.offset = 0,
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.size = TS72XX_BOOTROM_PART_SIZE,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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}, {
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.name = "Linux",
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.offset = MTDPART_OFS_RETAIN,
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.size = TS72XX_REDBOOT_PART_SIZE,
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/* leave so much for last partition */
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}, {
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.name = "RedBoot",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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};
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static struct platform_nand_data ts72xx_nand_data = {
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.chip = {
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.nr_chips = 1,
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.chip_offset = 0,
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.chip_delay = 15,
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.partitions = ts72xx_nand_parts,
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.nr_partitions = ARRAY_SIZE(ts72xx_nand_parts),
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},
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.ctrl = {
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.cmd_ctrl = ts72xx_nand_hwcontrol,
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.dev_ready = ts72xx_nand_device_ready,
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},
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};
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static struct resource ts72xx_nand_resource[] = {
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{
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.start = 0, /* filled in later */
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.end = 0, /* filled in later */
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device ts72xx_nand_flash = {
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.name = "gen_nand",
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.id = -1,
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.dev.platform_data = &ts72xx_nand_data,
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.resource = ts72xx_nand_resource,
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.num_resources = ARRAY_SIZE(ts72xx_nand_resource),
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};
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static void __init ts72xx_register_flash(void)
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{
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/*
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* TS7200 has NOR flash all other TS72xx board have NAND flash.
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*/
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if (board_is_ts7200()) {
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ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
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} else {
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resource_size_t start;
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if (is_ts9420_installed())
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start = EP93XX_CS7_PHYS_BASE;
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else
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start = EP93XX_CS6_PHYS_BASE;
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ts72xx_nand_resource[0].start = start;
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ts72xx_nand_resource[0].end = start + SZ_16M - 1;
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platform_device_register(&ts72xx_nand_flash);
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}
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}
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static unsigned char ts72xx_rtc_readbyte(unsigned long addr)
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{
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__raw_writeb(addr, TS72XX_RTC_INDEX_VIRT_BASE);
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return __raw_readb(TS72XX_RTC_DATA_VIRT_BASE);
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}
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static void ts72xx_rtc_writebyte(unsigned char value, unsigned long addr)
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{
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__raw_writeb(addr, TS72XX_RTC_INDEX_VIRT_BASE);
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__raw_writeb(value, TS72XX_RTC_DATA_VIRT_BASE);
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}
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static struct m48t86_ops ts72xx_rtc_ops = {
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.readbyte = ts72xx_rtc_readbyte,
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.writebyte = ts72xx_rtc_writebyte,
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};
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static struct platform_device ts72xx_rtc_device = {
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.name = "rtc-m48t86",
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.id = -1,
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.dev = {
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.platform_data = &ts72xx_rtc_ops,
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},
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.num_resources = 0,
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};
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static struct resource ts72xx_wdt_resources[] = {
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{
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.start = TS72XX_WDT_CONTROL_PHYS_BASE,
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.end = TS72XX_WDT_CONTROL_PHYS_BASE + SZ_4K - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = TS72XX_WDT_FEED_PHYS_BASE,
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.end = TS72XX_WDT_FEED_PHYS_BASE + SZ_4K - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device ts72xx_wdt_device = {
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.name = "ts72xx-wdt",
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.id = -1,
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.num_resources = ARRAY_SIZE(ts72xx_wdt_resources),
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.resource = ts72xx_wdt_resources,
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};
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static struct ep93xx_eth_data __initdata ts72xx_eth_data = {
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.phy_id = 1,
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};
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static void __init ts72xx_init_machine(void)
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{
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ep93xx_init_devices();
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ts72xx_register_flash();
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platform_device_register(&ts72xx_rtc_device);
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platform_device_register(&ts72xx_wdt_device);
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ep93xx_register_eth(&ts72xx_eth_data, 1);
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}
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MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC")
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/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
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.atag_offset = 0x100,
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.map_io = ts72xx_map_io,
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.init_irq = ep93xx_init_irq,
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.init_time = ep93xx_timer_init,
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.init_machine = ts72xx_init_machine,
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.init_late = ep93xx_init_late,
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.restart = ep93xx_restart,
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MACHINE_END
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