a2d88671f4
Changes in 4.9.268 net/sctp: fix race condition in sctp_destroy_sock Input: nspire-keypad - enable interrupts only when opened dmaengine: dw: Make it dependent to HAS_IOMEM ARM: dts: Fix moving mmc devices with aliases for omap4 & 5 arc: kernel: Return -EFAULT if copy_to_user() fails neighbour: Disregard DEAD dst in neigh_update ARM: keystone: fix integer overflow warning ASoC: fsl_esai: Fix TDM slot setup for I2S mode net: ieee802154: stop dump llsec keys for monitors net: ieee802154: stop dump llsec devs for monitors net: ieee802154: forbid monitor for add llsec dev net: ieee802154: stop dump llsec devkeys for monitors net: ieee802154: forbid monitor for add llsec devkey net: ieee802154: stop dump llsec seclevels for monitors net: ieee802154: forbid monitor for add llsec seclevel pcnet32: Use pci_resource_len to validate PCI resource Input: i8042 - fix Pegatron C15B ID entry scsi: libsas: Reset num_scatter if libata marks qc as NODATA net: davicom: Fix regulator not turned off on failed probe net: sit: Unregister catch-all devices i40e: fix the panic when running bpf in xdpdrv mode ARM: 9071/1: uprobes: Don't hook on thumb instructions usbip: Fix incorrect double assignment to udc->ud.tcp_rx usbip: add sysfs_lock to synchronize sysfs code paths usbip: stub-dev synchronize sysfs code paths usbip: vudc synchronize sysfs code paths usbip: synchronize event handler with sysfs code paths net: hso: fix null-ptr-deref during tty device unregistration ext4: correct error label in ext4_rename() HID: alps: fix error return code in alps_input_configured() ARM: dts: Fix swapped mmc order for omap3 s390/entry: save the caller of psw_idle xen-netback: Check for hotplug-status existence before watching cavium/liquidio: Fix duplicate argument ia64: fix discontig.c section mismatches ia64: tools: remove duplicate definition of ia64_mf() on ia64 x86/crash: Fix crash_setup_memmap_entries() out-of-bounds access net: hso: fix NULL-deref on disconnect regression Linux 4.9.268 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ib96fd01f51f6388cf8fa9f7e44507526738e4fe9
111 lines
2.6 KiB
C
111 lines
2.6 KiB
C
/*
|
|
* Keystone2 based boards and SOC related code.
|
|
*
|
|
* Copyright 2013 Texas Instruments, Inc.
|
|
* Cyril Chemparathy <cyril@ti.com>
|
|
* Santosh Shilimkar <santosh.shillimkar@ti.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*/
|
|
#include <linux/io.h>
|
|
#include <linux/of.h>
|
|
#include <linux/init.h>
|
|
#include <linux/of_platform.h>
|
|
#include <linux/of_address.h>
|
|
#include <linux/memblock.h>
|
|
|
|
#include <asm/setup.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/time.h>
|
|
#include <asm/smp_plat.h>
|
|
#include <asm/memory.h>
|
|
|
|
#include "memory.h"
|
|
|
|
#include "keystone.h"
|
|
|
|
static unsigned long keystone_dma_pfn_offset __read_mostly;
|
|
|
|
static int keystone_platform_notifier(struct notifier_block *nb,
|
|
unsigned long event, void *data)
|
|
{
|
|
struct device *dev = data;
|
|
|
|
if (event != BUS_NOTIFY_ADD_DEVICE)
|
|
return NOTIFY_DONE;
|
|
|
|
if (!dev)
|
|
return NOTIFY_BAD;
|
|
|
|
if (!dev->of_node) {
|
|
dev->dma_pfn_offset = keystone_dma_pfn_offset;
|
|
dev_err(dev, "set dma_pfn_offset%08lx\n",
|
|
dev->dma_pfn_offset);
|
|
}
|
|
return NOTIFY_OK;
|
|
}
|
|
|
|
static struct notifier_block platform_nb = {
|
|
.notifier_call = keystone_platform_notifier,
|
|
};
|
|
|
|
static void __init keystone_init(void)
|
|
{
|
|
if (PHYS_OFFSET >= KEYSTONE_HIGH_PHYS_START) {
|
|
keystone_dma_pfn_offset = PFN_DOWN(KEYSTONE_HIGH_PHYS_START -
|
|
KEYSTONE_LOW_PHYS_START);
|
|
bus_register_notifier(&platform_bus_type, &platform_nb);
|
|
}
|
|
keystone_pm_runtime_init();
|
|
}
|
|
|
|
static long long __init keystone_pv_fixup(void)
|
|
{
|
|
long long offset;
|
|
u64 mem_start, mem_end;
|
|
|
|
mem_start = memblock_start_of_DRAM();
|
|
mem_end = memblock_end_of_DRAM();
|
|
|
|
/* nothing to do if we are running out of the <32-bit space */
|
|
if (mem_start >= KEYSTONE_LOW_PHYS_START &&
|
|
mem_end <= KEYSTONE_LOW_PHYS_END)
|
|
return 0;
|
|
|
|
if (mem_start < KEYSTONE_HIGH_PHYS_START ||
|
|
mem_end > KEYSTONE_HIGH_PHYS_END) {
|
|
pr_crit("Invalid address space for memory (%08llx-%08llx)\n",
|
|
mem_start, mem_end);
|
|
return 0;
|
|
}
|
|
|
|
offset = KEYSTONE_HIGH_PHYS_START - KEYSTONE_LOW_PHYS_START;
|
|
|
|
/* Populate the arch idmap hook */
|
|
arch_phys_to_idmap_offset = -offset;
|
|
|
|
return offset;
|
|
}
|
|
|
|
static const char *const keystone_match[] __initconst = {
|
|
"ti,k2hk",
|
|
"ti,k2e",
|
|
"ti,k2l",
|
|
"ti,k2g",
|
|
"ti,keystone",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(KEYSTONE, "Keystone")
|
|
#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
|
|
.dma_zone_size = SZ_2G,
|
|
#endif
|
|
.smp = smp_ops(keystone_smp_ops),
|
|
.init_machine = keystone_init,
|
|
.dt_compat = keystone_match,
|
|
.pv_fixup = keystone_pv_fixup,
|
|
MACHINE_END
|