forked from Minki/linux
4f5d31ce09
This fix build warning:
arch/mips/loongson64/env.c: In function 'prom_init_env':
>> arch/mips/loongson64/env.c:50:14: warning: variable 'device' set but not used [-Wunused-but-set-variable]
50 | u16 vendor, device;
| ^~~~~~
{standard input}: Assembler messages:
{standard input}:788: Error: found '(', expected: ')'
{standard input}:788: Error: found '(', expected: ')'
{standard input}:788: Error: non-constant expression in ".if" statement
{standard input}:788: Error: junk at end of line, first unrecognized character is `('
{standard input}:801: Error: found '(', expected: ')'
{standard input}:801: Error: found '(', expected: ')'
{standard input}:801: Error: non-constant expression in ".if" statement
{standard input}:801: Error: junk at end of line, first unrecognized character is `('
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
224 lines
7.1 KiB
C
224 lines
7.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Based on Ocelot Linux port, which is
|
|
* Copyright 2001 MontaVista Software Inc.
|
|
* Author: jsun@mvista.com or jsun@junsun.net
|
|
*
|
|
* Copyright 2003 ICT CAS
|
|
* Author: Michael Guo <guoyi@ict.ac.cn>
|
|
*
|
|
* Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
|
|
* Author: Fuxin Zhang, zhangfx@lemote.com
|
|
*
|
|
* Copyright (C) 2009 Lemote Inc.
|
|
* Author: Wu Zhangjin, wuzhangjin@gmail.com
|
|
*/
|
|
#include <linux/export.h>
|
|
#include <linux/pci_ids.h>
|
|
#include <asm/bootinfo.h>
|
|
#include <loongson.h>
|
|
#include <boot_param.h>
|
|
#include <builtin_dtbs.h>
|
|
#include <workarounds.h>
|
|
|
|
#define HOST_BRIDGE_CONFIG_ADDR ((void __iomem *)TO_UNCAC(0x1a000000))
|
|
|
|
u32 cpu_clock_freq;
|
|
EXPORT_SYMBOL(cpu_clock_freq);
|
|
struct efi_memory_map_loongson *loongson_memmap;
|
|
struct loongson_system_configuration loongson_sysconf;
|
|
|
|
struct board_devices *eboard;
|
|
struct interface_info *einter;
|
|
struct loongson_special_attribute *especial;
|
|
|
|
u64 loongson_chipcfg[MAX_PACKAGES] = {0xffffffffbfc00180};
|
|
u64 loongson_chiptemp[MAX_PACKAGES];
|
|
u64 loongson_freqctrl[MAX_PACKAGES];
|
|
|
|
unsigned long long smp_group[4];
|
|
|
|
const char *get_system_type(void)
|
|
{
|
|
return "Generic Loongson64 System";
|
|
}
|
|
|
|
|
|
void __init prom_dtb_init_env(void)
|
|
{
|
|
if ((fw_arg2 < CKSEG0 || fw_arg2 > CKSEG1)
|
|
&& (fw_arg2 < XKPHYS || fw_arg2 > XKSEG))
|
|
|
|
loongson_fdt_blob = __dtb_loongson64_2core_2k1000_begin;
|
|
else
|
|
loongson_fdt_blob = (void *)fw_arg2;
|
|
}
|
|
|
|
void __init prom_lefi_init_env(void)
|
|
{
|
|
struct boot_params *boot_p;
|
|
struct loongson_params *loongson_p;
|
|
struct system_loongson *esys;
|
|
struct efi_cpuinfo_loongson *ecpu;
|
|
struct irq_source_routing_table *eirq_source;
|
|
u32 id;
|
|
u16 vendor;
|
|
|
|
/* firmware arguments are initialized in head.S */
|
|
boot_p = (struct boot_params *)fw_arg2;
|
|
loongson_p = &(boot_p->efi.smbios.lp);
|
|
|
|
esys = (struct system_loongson *)
|
|
((u64)loongson_p + loongson_p->system_offset);
|
|
ecpu = (struct efi_cpuinfo_loongson *)
|
|
((u64)loongson_p + loongson_p->cpu_offset);
|
|
eboard = (struct board_devices *)
|
|
((u64)loongson_p + loongson_p->boarddev_table_offset);
|
|
einter = (struct interface_info *)
|
|
((u64)loongson_p + loongson_p->interface_offset);
|
|
especial = (struct loongson_special_attribute *)
|
|
((u64)loongson_p + loongson_p->special_offset);
|
|
eirq_source = (struct irq_source_routing_table *)
|
|
((u64)loongson_p + loongson_p->irq_offset);
|
|
loongson_memmap = (struct efi_memory_map_loongson *)
|
|
((u64)loongson_p + loongson_p->memory_offset);
|
|
|
|
cpu_clock_freq = ecpu->cpu_clock_freq;
|
|
loongson_sysconf.cputype = ecpu->cputype;
|
|
switch (ecpu->cputype) {
|
|
case Legacy_3A:
|
|
case Loongson_3A:
|
|
loongson_sysconf.cores_per_node = 4;
|
|
loongson_sysconf.cores_per_package = 4;
|
|
smp_group[0] = 0x900000003ff01000;
|
|
smp_group[1] = 0x900010003ff01000;
|
|
smp_group[2] = 0x900020003ff01000;
|
|
smp_group[3] = 0x900030003ff01000;
|
|
loongson_chipcfg[0] = 0x900000001fe00180;
|
|
loongson_chipcfg[1] = 0x900010001fe00180;
|
|
loongson_chipcfg[2] = 0x900020001fe00180;
|
|
loongson_chipcfg[3] = 0x900030001fe00180;
|
|
loongson_chiptemp[0] = 0x900000001fe0019c;
|
|
loongson_chiptemp[1] = 0x900010001fe0019c;
|
|
loongson_chiptemp[2] = 0x900020001fe0019c;
|
|
loongson_chiptemp[3] = 0x900030001fe0019c;
|
|
loongson_freqctrl[0] = 0x900000001fe001d0;
|
|
loongson_freqctrl[1] = 0x900010001fe001d0;
|
|
loongson_freqctrl[2] = 0x900020001fe001d0;
|
|
loongson_freqctrl[3] = 0x900030001fe001d0;
|
|
loongson_sysconf.workarounds = WORKAROUND_CPUFREQ;
|
|
break;
|
|
case Legacy_3B:
|
|
case Loongson_3B:
|
|
loongson_sysconf.cores_per_node = 4; /* One chip has 2 nodes */
|
|
loongson_sysconf.cores_per_package = 8;
|
|
smp_group[0] = 0x900000003ff01000;
|
|
smp_group[1] = 0x900010003ff05000;
|
|
smp_group[2] = 0x900020003ff09000;
|
|
smp_group[3] = 0x900030003ff0d000;
|
|
loongson_chipcfg[0] = 0x900000001fe00180;
|
|
loongson_chipcfg[1] = 0x900020001fe00180;
|
|
loongson_chipcfg[2] = 0x900040001fe00180;
|
|
loongson_chipcfg[3] = 0x900060001fe00180;
|
|
loongson_chiptemp[0] = 0x900000001fe0019c;
|
|
loongson_chiptemp[1] = 0x900020001fe0019c;
|
|
loongson_chiptemp[2] = 0x900040001fe0019c;
|
|
loongson_chiptemp[3] = 0x900060001fe0019c;
|
|
loongson_freqctrl[0] = 0x900000001fe001d0;
|
|
loongson_freqctrl[1] = 0x900020001fe001d0;
|
|
loongson_freqctrl[2] = 0x900040001fe001d0;
|
|
loongson_freqctrl[3] = 0x900060001fe001d0;
|
|
loongson_sysconf.workarounds = WORKAROUND_CPUHOTPLUG;
|
|
break;
|
|
default:
|
|
loongson_sysconf.cores_per_node = 1;
|
|
loongson_sysconf.cores_per_package = 1;
|
|
loongson_chipcfg[0] = 0x900000001fe00180;
|
|
}
|
|
|
|
loongson_sysconf.nr_cpus = ecpu->nr_cpus;
|
|
loongson_sysconf.boot_cpu_id = ecpu->cpu_startup_core_id;
|
|
loongson_sysconf.reserved_cpus_mask = ecpu->reserved_cores_mask;
|
|
if (ecpu->nr_cpus > NR_CPUS || ecpu->nr_cpus == 0)
|
|
loongson_sysconf.nr_cpus = NR_CPUS;
|
|
loongson_sysconf.nr_nodes = (loongson_sysconf.nr_cpus +
|
|
loongson_sysconf.cores_per_node - 1) /
|
|
loongson_sysconf.cores_per_node;
|
|
|
|
loongson_sysconf.dma_mask_bits = eirq_source->dma_mask_bits;
|
|
if (loongson_sysconf.dma_mask_bits < 32 ||
|
|
loongson_sysconf.dma_mask_bits > 64)
|
|
loongson_sysconf.dma_mask_bits = 32;
|
|
|
|
loongson_sysconf.restart_addr = boot_p->reset_system.ResetWarm;
|
|
loongson_sysconf.poweroff_addr = boot_p->reset_system.Shutdown;
|
|
loongson_sysconf.suspend_addr = boot_p->reset_system.DoSuspend;
|
|
|
|
loongson_sysconf.vgabios_addr = boot_p->efi.smbios.vga_bios;
|
|
pr_debug("Shutdown Addr: %llx, Restart Addr: %llx, VBIOS Addr: %llx\n",
|
|
loongson_sysconf.poweroff_addr, loongson_sysconf.restart_addr,
|
|
loongson_sysconf.vgabios_addr);
|
|
|
|
loongson_sysconf.workarounds |= esys->workarounds;
|
|
|
|
pr_info("CpuClock = %u\n", cpu_clock_freq);
|
|
|
|
/* Read the ID of PCI host bridge to detect bridge type */
|
|
id = readl(HOST_BRIDGE_CONFIG_ADDR);
|
|
vendor = id & 0xffff;
|
|
|
|
switch (vendor) {
|
|
case PCI_VENDOR_ID_LOONGSON:
|
|
pr_info("The bridge chip is LS7A\n");
|
|
loongson_sysconf.bridgetype = LS7A;
|
|
loongson_sysconf.early_config = ls7a_early_config;
|
|
break;
|
|
case PCI_VENDOR_ID_AMD:
|
|
case PCI_VENDOR_ID_ATI:
|
|
pr_info("The bridge chip is RS780E or SR5690\n");
|
|
loongson_sysconf.bridgetype = RS780E;
|
|
loongson_sysconf.early_config = rs780e_early_config;
|
|
break;
|
|
default:
|
|
pr_info("The bridge chip is VIRTUAL\n");
|
|
loongson_sysconf.bridgetype = VIRTUAL;
|
|
loongson_sysconf.early_config = virtual_early_config;
|
|
loongson_fdt_blob = __dtb_loongson64v_4core_virtio_begin;
|
|
break;
|
|
}
|
|
|
|
if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64C) {
|
|
switch (read_c0_prid() & PRID_REV_MASK) {
|
|
case PRID_REV_LOONGSON3A_R1:
|
|
case PRID_REV_LOONGSON3A_R2_0:
|
|
case PRID_REV_LOONGSON3A_R2_1:
|
|
case PRID_REV_LOONGSON3A_R3_0:
|
|
case PRID_REV_LOONGSON3A_R3_1:
|
|
switch (loongson_sysconf.bridgetype) {
|
|
case LS7A:
|
|
loongson_fdt_blob = __dtb_loongson64c_4core_ls7a_begin;
|
|
break;
|
|
case RS780E:
|
|
loongson_fdt_blob = __dtb_loongson64c_4core_rs780e_begin;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case PRID_REV_LOONGSON3B_R1:
|
|
case PRID_REV_LOONGSON3B_R2:
|
|
if (loongson_sysconf.bridgetype == RS780E)
|
|
loongson_fdt_blob = __dtb_loongson64c_8core_rs780e_begin;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} else if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64G) {
|
|
if (loongson_sysconf.bridgetype == LS7A)
|
|
loongson_fdt_blob = __dtb_loongson64g_4core_ls7a_begin;
|
|
}
|
|
|
|
if (!loongson_fdt_blob)
|
|
pr_err("Failed to determine built-in Loongson64 dtb\n");
|
|
}
|