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authorWu Zhangjin <wuzhangjin@gmail.com>2009-11-11 13:39:12 +0800
committerRalf Baechle <ralf@linux-mips.org>2009-12-17 01:57:15 +0000
commit55045ff5557bc804752e84dca5d1b1f1d4bb4e31 (patch)
tree981f6201429b833afb801079aa6abf5e72dc4349 /arch/mips
parent6e34358ed4f89556b5474ff883ac148750189ef0 (diff)
downloadblackbird-op-linux-55045ff5557bc804752e84dca5d1b1f1d4bb4e31.tar.gz
blackbird-op-linux-55045ff5557bc804752e84dca5d1b1f1d4bb4e31.zip
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>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/Kconfig6
-rw-r--r--arch/mips/include/asm/mach-loongson/loongson.h6
-rw-r--r--arch/mips/include/asm/mach-loongson/pci.h4
-rw-r--r--arch/mips/loongson/common/init.c2
-rw-r--r--arch/mips/loongson/common/mem.c8
-rw-r--r--arch/mips/loongson/common/pci.c2
6 files changed, 17 insertions, 11 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index c2b4cd511419..51e4e5b02f9d 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -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
diff --git a/arch/mips/include/asm/mach-loongson/loongson.h b/arch/mips/include/asm/mach-loongson/loongson.h
index 99113902719a..9bccdb5d4b51 100644
--- a/arch/mips/include/asm/mach-loongson/loongson.h
+++ b/arch/mips/include/asm/mach-loongson/loongson.h
@@ -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 */
diff --git a/arch/mips/include/asm/mach-loongson/pci.h b/arch/mips/include/asm/mach-loongson/pci.h
index 31ba90891ec0..a199a4f6de4e 100644
--- a/arch/mips/include/asm/mach-loongson/pci.h
+++ b/arch/mips/include/asm/mach-loongson/pci.h
@@ -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_ */
diff --git a/arch/mips/loongson/common/init.c b/arch/mips/loongson/common/init.c
index 743d3571f010..2b92a23d29dd 100644
--- a/arch/mips/loongson/common/init.c
+++ b/arch/mips/loongson/common/init.c
@@ -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
diff --git a/arch/mips/loongson/common/mem.c b/arch/mips/loongson/common/mem.c
index e93551dbc9ea..981e9190f393 100644
--- a/arch/mips/loongson/common/mem.c
+++ b/arch/mips/loongson/common/mem.c
@@ -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 */
diff --git a/arch/mips/loongson/common/pci.c b/arch/mips/loongson/common/pci.c
index eac43b8f695e..31d8c5ecd16c 100644
--- a/arch/mips/loongson/common/pci.c
+++ b/arch/mips/loongson/common/pci.c
@@ -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
*/
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