mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-07 01:16:42 +07:00
95f72d1ed4
via following scripts FILES=$(find * -type f | grep -vE 'oprofile|[^K]config') sed -i \ -e 's/lmb/memblock/g' \ -e 's/LMB/MEMBLOCK/g' \ $FILES for N in $(find . -name lmb.[ch]); do M=$(echo $N | sed 's/lmb/memblock/g') mv $N $M done and remove some wrong change like lmbench and dlmb etc. also move memblock.c from lib/ to mm/ Suggested-by: Ingo Molnar <mingo@elte.hu> Acked-by: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
193 lines
4.2 KiB
C
193 lines
4.2 KiB
C
/*
|
|
* MPC86xx HPCN board specific routines
|
|
*
|
|
* Recode: ZHANG WEI <wei.zhang@freescale.com>
|
|
* Initial author: Xianghua Xiao <x.xiao@freescale.com>
|
|
*
|
|
* Copyright 2006 Freescale Semiconductor Inc.
|
|
*
|
|
* 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/stddef.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/kdev_t.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/of_platform.h>
|
|
#include <linux/memblock.h>
|
|
|
|
#include <asm/system.h>
|
|
#include <asm/time.h>
|
|
#include <asm/machdep.h>
|
|
#include <asm/pci-bridge.h>
|
|
#include <asm/prom.h>
|
|
#include <mm/mmu_decl.h>
|
|
#include <asm/udbg.h>
|
|
#include <asm/swiotlb.h>
|
|
|
|
#include <asm/mpic.h>
|
|
|
|
#include <sysdev/fsl_pci.h>
|
|
#include <sysdev/fsl_soc.h>
|
|
|
|
#include "mpc86xx.h"
|
|
|
|
#undef DEBUG
|
|
|
|
#ifdef DEBUG
|
|
#define DBG(fmt...) do { printk(KERN_ERR fmt); } while(0)
|
|
#else
|
|
#define DBG(fmt...) do { } while(0)
|
|
#endif
|
|
|
|
#ifdef CONFIG_PCI
|
|
extern int uli_exclude_device(struct pci_controller *hose,
|
|
u_char bus, u_char devfn);
|
|
|
|
static int mpc86xx_exclude_device(struct pci_controller *hose,
|
|
u_char bus, u_char devfn)
|
|
{
|
|
struct device_node* node;
|
|
struct resource rsrc;
|
|
|
|
node = hose->dn;
|
|
of_address_to_resource(node, 0, &rsrc);
|
|
|
|
if ((rsrc.start & 0xfffff) == 0x8000) {
|
|
return uli_exclude_device(hose, bus, devfn);
|
|
}
|
|
|
|
return PCIBIOS_SUCCESSFUL;
|
|
}
|
|
#endif /* CONFIG_PCI */
|
|
|
|
|
|
static void __init
|
|
mpc86xx_hpcn_setup_arch(void)
|
|
{
|
|
#ifdef CONFIG_PCI
|
|
struct device_node *np;
|
|
struct pci_controller *hose;
|
|
#endif
|
|
dma_addr_t max = 0xffffffff;
|
|
|
|
if (ppc_md.progress)
|
|
ppc_md.progress("mpc86xx_hpcn_setup_arch()", 0);
|
|
|
|
#ifdef CONFIG_PCI
|
|
for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie") {
|
|
struct resource rsrc;
|
|
of_address_to_resource(np, 0, &rsrc);
|
|
if ((rsrc.start & 0xfffff) == 0x8000)
|
|
fsl_add_bridge(np, 1);
|
|
else
|
|
fsl_add_bridge(np, 0);
|
|
hose = pci_find_hose_for_OF_device(np);
|
|
max = min(max, hose->dma_window_base_cur +
|
|
hose->dma_window_size);
|
|
}
|
|
|
|
ppc_md.pci_exclude_device = mpc86xx_exclude_device;
|
|
|
|
#endif
|
|
|
|
printk("MPC86xx HPCN board from Freescale Semiconductor\n");
|
|
|
|
#ifdef CONFIG_SMP
|
|
mpc86xx_smp_init();
|
|
#endif
|
|
|
|
#ifdef CONFIG_SWIOTLB
|
|
if (memblock_end_of_DRAM() > max) {
|
|
ppc_swiotlb_enable = 1;
|
|
set_pci_dma_ops(&swiotlb_dma_ops);
|
|
ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
static void
|
|
mpc86xx_hpcn_show_cpuinfo(struct seq_file *m)
|
|
{
|
|
uint svid = mfspr(SPRN_SVR);
|
|
|
|
seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n");
|
|
|
|
seq_printf(m, "SVR\t\t: 0x%x\n", svid);
|
|
}
|
|
|
|
|
|
/*
|
|
* Called very early, device-tree isn't unflattened
|
|
*/
|
|
static int __init mpc86xx_hpcn_probe(void)
|
|
{
|
|
unsigned long root = of_get_flat_dt_root();
|
|
|
|
if (of_flat_dt_is_compatible(root, "fsl,mpc8641hpcn"))
|
|
return 1; /* Looks good */
|
|
|
|
/* Be nice and don't give silent boot death. Delete this in 2.6.27 */
|
|
if (of_flat_dt_is_compatible(root, "mpc86xx")) {
|
|
pr_warning("WARNING: your dts/dtb is old. You must update before the next kernel release\n");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static long __init
|
|
mpc86xx_time_init(void)
|
|
{
|
|
unsigned int temp;
|
|
|
|
/* Set the time base to zero */
|
|
mtspr(SPRN_TBWL, 0);
|
|
mtspr(SPRN_TBWU, 0);
|
|
|
|
temp = mfspr(SPRN_HID0);
|
|
temp |= HID0_TBEN;
|
|
mtspr(SPRN_HID0, temp);
|
|
asm volatile("isync");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static __initdata struct of_device_id of_bus_ids[] = {
|
|
{ .compatible = "simple-bus", },
|
|
{ .compatible = "fsl,rapidio-delta", },
|
|
{ .compatible = "gianfar", },
|
|
{},
|
|
};
|
|
|
|
static int __init declare_of_platform_devices(void)
|
|
{
|
|
of_platform_bus_probe(NULL, of_bus_ids, NULL);
|
|
|
|
return 0;
|
|
}
|
|
machine_device_initcall(mpc86xx_hpcn, declare_of_platform_devices);
|
|
machine_arch_initcall(mpc86xx_hpcn, swiotlb_setup_bus_notifier);
|
|
|
|
define_machine(mpc86xx_hpcn) {
|
|
.name = "MPC86xx HPCN",
|
|
.probe = mpc86xx_hpcn_probe,
|
|
.setup_arch = mpc86xx_hpcn_setup_arch,
|
|
.init_IRQ = mpc86xx_init_irq,
|
|
.show_cpuinfo = mpc86xx_hpcn_show_cpuinfo,
|
|
.get_irq = mpic_get_irq,
|
|
.restart = fsl_rstcr_restart,
|
|
.time_init = mpc86xx_time_init,
|
|
.calibrate_decr = generic_calibrate_decr,
|
|
.progress = udbg_progress,
|
|
#ifdef CONFIG_PCI
|
|
.pcibios_fixup_bus = fsl_pcibios_fixup_bus,
|
|
#endif
|
|
};
|