Release 4.17 arch/arm/mach-keystone/keystone.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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Santosh Shilimkar | 72 | 100.00% | 1 | 100.00% |
| Total | 72 | 100.00% | 1 | 100.00% |
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();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Santosh Shilimkar | 21 | 55.26% | 2 | 66.67% |
| Russell King | 17 | 44.74% | 1 | 33.33% |
| Total | 38 | 100.00% | 3 | 100.00% |
static long long __init keystone_pv_fixup(void)
{
long long offset;
phys_addr_t 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",
(u64)mem_start, (u64)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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Santosh Shilimkar | 69 | 78.41% | 2 | 40.00% |
| Russell King | 19 | 21.59% | 3 | 60.00% |
| Total | 88 | 100.00% | 5 | 100.00% |
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
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Santosh Shilimkar | 269 | 81.52% | 6 | 40.00% |
| Russell King | 50 | 15.15% | 4 | 26.67% |
| Nishanth Menon | 8 | 2.42% | 2 | 13.33% |
| Ivan Khoronzhuk | 1 | 0.30% | 1 | 6.67% |
| Murali Karicheri | 1 | 0.30% | 1 | 6.67% |
| Uwe Kleine-König | 1 | 0.30% | 1 | 6.67% |
| Total | 330 | 100.00% | 15 | 100.00% |
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