UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

MIPS: Loongson 2F: Cleanup the #if clauses 

This patch adds two new kernel options: CPU_SUPPORTS_CPUFREQ and
CPU_SUPPORTS_ADDRWINCFG to describe the new features of Loongons 2F and
replaces the several ugly #if clauses by them.

These two options will be utilized by the future loongson revisions and
related drivers such as the coming Loongson 2F CPUFreq driver.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Wu Zhangjin 2009-11-11 13:39:12 +08:00 committed by Ralf Baechle
parent 6e34358ed4
commit 55045ff555
6 changed files with 17 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/mips/Kconfig
View File

@ -1334,6 +1334,8 @@ config SYS_HAS_CPU_LOONGSON2E
config SYS_HAS_CPU_LOONGSON2F
bool
select CPU_SUPPORTS_CPUFREQ
select CPU_SUPPORTS_ADDRWINCFG if 64BIT
config SYS_HAS_CPU_MIPS32_R1
bool
@ -1443,6 +1445,10 @@ config CPU_SUPPORTS_32BIT_KERNEL
bool
config CPU_SUPPORTS_64BIT_KERNEL
bool
config CPU_SUPPORTS_CPUFREQ
bool
config CPU_SUPPORTS_ADDRWINCFG
bool
config CPU_SUPPORTS_HUGEPAGES
bool
config MIPS_PGD_C0_CONTEXT

6
arch/mips/include/asm/mach-loongson/loongson.h
View File

@ -227,7 +227,7 @@ extern void mach_irq_dispatch(unsigned int pending);
((((ADDR)>>26) & LOONGSON_PCIMAP_PCIMAP_LO0) << ((WIN)*6))
/* Chip Config */
#ifdef CONFIG_CPU_LOONGSON2F
#ifdef CONFIG_CPU_SUPPORTS_CPUFREQ
#define LOONGSON_CHIPCFG0 LOONGSON_REG(LOONGSON_REGBASE + 0x80)
#endif
@ -236,7 +236,7 @@ extern void mach_irq_dispatch(unsigned int pending);
*
* loongson2e do not have this module
*/
#if defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT)
#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
/* address window config module base address */
#define LOONGSON_ADDRWINCFG_BASE 0x3ff00000ul
@ -306,6 +306,6 @@ extern unsigned long _loongson_addrwincfg_base;
#define LOONGSON_ADDRWIN_PCITODDR(win, src, dst, size) \
LOONGSON_ADDRWIN_CFG(PCIDMA, DDR, win, src, dst, size)
#endif /* ! CONFIG_CPU_LOONGSON2F && CONFIG_64BIT */
#endif /* ! CONFIG_CPU_SUPPORTS_ADDRWINCFG */
#endif /* __ASM_MACH_LOONGSON_LOONGSON_H */

4
arch/mips/include/asm/mach-loongson/pci.h
View File

@ -28,7 +28,7 @@ extern struct pci_ops loongson_pci_ops;
/* this is an offset from mips_io_port_base */
#define LOONGSON_PCI_IO_START 0x00004000UL
#if defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT)
#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
/*
* we use address window2 to map cpu address space to pci space
@ -56,6 +56,6 @@ extern struct pci_ops loongson_pci_ops;
/* this is an offset from mips_io_port_base */
#define LOONGSON_PCI_IO_START 0x00004000UL
#endif /* !(defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT))*/
#endif /* !CONFIG_CPU_SUPPORTS_ADDRWINCFG */
#endif /* !__ASM_MACH_LOONGSON_PCI_H_ */

2
arch/mips/loongson/common/init.c
View File

@ -21,7 +21,7 @@ void __init prom_init(void)
set_io_port_base((unsigned long)
ioremap(LOONGSON_PCIIO_BASE, LOONGSON_PCIIO_SIZE));
#if defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT)
#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
_loongson_addrwincfg_base = (unsigned long)
ioremap(LOONGSON_ADDRWINCFG_BASE, LOONGSON_ADDRWINCFG_SIZE);
#endif

8
arch/mips/loongson/common/mem.c
View File

@ -20,8 +20,7 @@ void __init prom_init_memory(void)
add_memory_region(memsize << 20, LOONGSON_PCI_MEM_START - (memsize <<
20), BOOT_MEM_RESERVED);
#ifdef CONFIG_64BIT
#ifdef CONFIG_CPU_LOONGSON2F
#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
{
int bit;
@ -36,8 +35,9 @@ void __init prom_init_memory(void)
0x80000000ul, (1 << bit));
mmiowb();
}
#endif /* CONFIG_CPU_LOONGSON2F */
#endif /* !CONFIG_CPU_SUPPORTS_ADDRWINCFG */
#ifdef CONFIG_64BIT
if (highmemsize > 0)
add_memory_region(LOONGSON_HIGHMEM_START,
highmemsize << 20, BOOT_MEM_RAM);
@ -45,7 +45,7 @@ void __init prom_init_memory(void)
add_memory_region(LOONGSON_PCI_MEM_END + 1, LOONGSON_HIGHMEM_START -
LOONGSON_PCI_MEM_END - 1, BOOT_MEM_RESERVED);
#endif /* CONFIG_64BIT */
#endif /* !CONFIG_64BIT */
}
/* override of arch/mips/mm/cache.c: __uncached_access */

2
arch/mips/loongson/common/pci.c
View File

@ -68,7 +68,7 @@ static void __init setup_pcimap(void)
deassert for some broken device */
LOONGSON_PXARB_CFG = 0x00fe0105ul;
#if defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT)
#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
/*
* set cpu addr window2 to map CPU address space to PCI address space
*/