diff options
Diffstat (limited to 'arch/mips/mti-malta')
| -rw-r--r-- | arch/mips/mti-malta/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/mti-malta/malta-pm.c | 96 | ||||
| -rw-r--r-- | arch/mips/mti-malta/malta-reset.c | 30 | ||||
| -rw-r--r-- | arch/mips/mti-malta/malta-setup.c | 39 |
4 files changed, 1 insertions, 166 deletions
diff --git a/arch/mips/mti-malta/Makefile b/arch/mips/mti-malta/Makefile index 63940bdce698..17c7fd471a27 100644 --- a/arch/mips/mti-malta/Makefile +++ b/arch/mips/mti-malta/Makefile @@ -13,11 +13,9 @@ obj-y += malta-init.o obj-y += malta-int.o obj-y += malta-memory.o obj-y += malta-platform.o -obj-y += malta-reset.o obj-y += malta-setup.o obj-y += malta-time.o obj-$(CONFIG_MIPS_CMP) += malta-amon.o -obj-$(CONFIG_MIPS_MALTA_PM) += malta-pm.o CFLAGS_malta-dtshim.o = -I$(src)/../../../scripts/dtc/libfdt diff --git a/arch/mips/mti-malta/malta-pm.c b/arch/mips/mti-malta/malta-pm.c deleted file mode 100644 index efbd659fb602..000000000000 --- a/arch/mips/mti-malta/malta-pm.c +++ /dev/null @@ -1,96 +0,0 @@ -/* - * Copyright (C) 2014 Imagination Technologies - * Author: Paul Burton <paul.burton@mips.com> - * - * 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. - */ - -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/pci.h> - -#include <asm/mach-malta/malta-pm.h> - -static struct pci_bus *pm_pci_bus; -static resource_size_t pm_io_offset; - -int mips_pm_suspend(unsigned state) -{ - int spec_devid; - u16 sts; - - if (!pm_pci_bus || !pm_io_offset) - return -ENODEV; - - /* Ensure the power button status is clear */ - while (1) { - sts = inw(pm_io_offset + PIIX4_FUNC3IO_PMSTS); - if (!(sts & PIIX4_FUNC3IO_PMSTS_PWRBTN_STS)) - break; - outw(sts, pm_io_offset + PIIX4_FUNC3IO_PMSTS); - } - - /* Enable entry to suspend */ - outw(state | PIIX4_FUNC3IO_PMCNTRL_SUS_EN, - pm_io_offset + PIIX4_FUNC3IO_PMCNTRL); - - /* If the special cycle occurs too soon this doesn't work... */ - mdelay(10); - - /* - * The PIIX4 will enter the suspend state only after seeing a special - * cycle with the correct magic data on the PCI bus. Generate that - * cycle now. - */ - spec_devid = PCI_DEVID(0, PCI_DEVFN(0x1f, 0x7)); - pci_bus_write_config_dword(pm_pci_bus, spec_devid, 0, - PIIX4_SUSPEND_MAGIC); - - /* Give the system some time to power down */ - mdelay(1000); - - return 0; -} - -static int __init malta_pm_setup(void) -{ - struct pci_dev *dev; - int res, io_region = PCI_BRIDGE_RESOURCES; - - /* Find a reference to the PCI bus */ - pm_pci_bus = pci_find_next_bus(NULL); - if (!pm_pci_bus) { - pr_warn("malta-pm: failed to find reference to PCI bus\n"); - return -ENODEV; - } - - /* Find the PIIX4 PM device */ - dev = pci_get_subsys(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_82371AB_3, PCI_ANY_ID, - PCI_ANY_ID, NULL); - if (!dev) { - pr_warn("malta-pm: failed to find PIIX4 PM\n"); - return -ENODEV; - } - - /* Request access to the PIIX4 PM IO registers */ - res = pci_request_region(dev, io_region, "PIIX4 PM IO registers"); - if (res) { - pr_warn("malta-pm: failed to request PM IO registers (%d)\n", - res); - pci_dev_put(dev); - return -ENODEV; - } - - /* Find the offset to the PIIX4 PM IO registers */ - pm_io_offset = pci_resource_start(dev, io_region); - - pci_dev_put(dev); - return 0; -} - -late_initcall(malta_pm_setup); diff --git a/arch/mips/mti-malta/malta-reset.c b/arch/mips/mti-malta/malta-reset.c deleted file mode 100644 index dd6f62ad4417..000000000000 --- a/arch/mips/mti-malta/malta-reset.c +++ /dev/null @@ -1,30 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. - */ -#include <linux/io.h> -#include <linux/pm.h> -#include <linux/reboot.h> - -#include <asm/reboot.h> -#include <asm/mach-malta/malta-pm.h> - -static void mips_machine_power_off(void) -{ - mips_pm_suspend(PIIX4_FUNC3IO_PMCNTRL_SUS_TYP_SOFF); - - pr_info("Failed to power down, resetting\n"); - machine_restart(NULL); -} - -static int __init mips_reboot_setup(void) -{ - pm_power_off = mips_machine_power_off; - - return 0; -} -arch_initcall(mips_reboot_setup); diff --git a/arch/mips/mti-malta/malta-setup.c b/arch/mips/mti-malta/malta-setup.c index 7b63914d2e58..5d4c5e5fbd69 100644 --- a/arch/mips/mti-malta/malta-setup.c +++ b/arch/mips/mti-malta/malta-setup.c @@ -26,6 +26,7 @@ #include <linux/screen_info.h> #include <linux/time.h> +#include <asm/dma-coherence.h> #include <asm/fw/fw.h> #include <asm/mach-malta/malta-dtshim.h> #include <asm/mips-cps.h> @@ -144,12 +145,6 @@ static int __init plat_enable_iocoherency(void) static void __init plat_setup_iocoherency(void) { -#ifdef CONFIG_DMA_NONCOHERENT - /* - * Kernel has been configured with software coherency - * but we might choose to turn it off and use hardware - * coherency instead. - */ if (plat_enable_iocoherency()) { if (coherentio == IO_COHERENCE_DISABLED) pr_info("Hardware DMA cache coherency disabled\n"); @@ -161,10 +156,6 @@ static void __init plat_setup_iocoherency(void) else pr_info("Software DMA cache coherency enabled\n"); } -#else - if (!plat_enable_iocoherency()) - panic("Hardware DMA cache coherency not supported!"); -#endif } static void __init pci_clock_check(void) @@ -226,29 +217,6 @@ static void __init bonito_quirks_setup(void) pr_info("Enabled Bonito debug mode\n"); } else BONITO_BONGENCFG &= ~BONITO_BONGENCFG_DEBUGMODE; - -#ifdef CONFIG_DMA_COHERENT - if (BONITO_PCICACHECTRL & BONITO_PCICACHECTRL_CPUCOH_PRES) { - BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_CPUCOH_EN; - pr_info("Enabled Bonito CPU coherency\n"); - - argptr = fw_getcmdline(); - if (strstr(argptr, "iobcuncached")) { - BONITO_PCICACHECTRL &= ~BONITO_PCICACHECTRL_IOBCCOH_EN; - BONITO_PCIMEMBASECFG = BONITO_PCIMEMBASECFG & - ~(BONITO_PCIMEMBASECFG_MEMBASE0_CACHED | - BONITO_PCIMEMBASECFG_MEMBASE1_CACHED); - pr_info("Disabled Bonito IOBC coherency\n"); - } else { - BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_IOBCCOH_EN; - BONITO_PCIMEMBASECFG |= - (BONITO_PCIMEMBASECFG_MEMBASE0_CACHED | - BONITO_PCIMEMBASECFG_MEMBASE1_CACHED); - pr_info("Enabled Bonito IOBC coherency\n"); - } - } else - panic("Hardware DMA cache coherency not supported"); -#endif } void __init *plat_get_fdt(void) @@ -279,11 +247,6 @@ void __init plat_mem_setup(void) */ enable_dma(4); -#ifdef CONFIG_DMA_COHERENT - if (mips_revision_sconid != MIPS_REVISION_SCON_BONITO) - panic("Hardware DMA cache coherency not supported"); -#endif - if (mips_revision_sconid == MIPS_REVISION_SCON_BONITO) bonito_quirks_setup(); |