diff options
| author | Olof Johansson <olof@lixom.net> | 2008-04-04 13:06:33 -0500 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2008-04-07 09:16:28 -0500 |
| commit | f724bf77813d73318bf97dab9626156a0a87c7fc (patch) | |
| tree | 983ff1bae9da264afdaa6f7f7911b17c858c30ba /arch | |
| parent | 6e62040c5533a385b90fcb2e33235ad7d351d3e0 (diff) | |
[POWERPC] pasemi: Minor iommu cleanup
Clean up the pwrficient iommu code a bit. It was using u32 *-based offsets
for registers, which can be a bit confusing when comparing to the manual.
Generated binaries from the code is unchanged from before.
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/pasemi/iommu.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c index 5803f11c77f..86967bdd877 100644 --- a/arch/powerpc/platforms/pasemi/iommu.c +++ b/arch/powerpc/platforms/pasemi/iommu.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2005-2007, PA Semi, Inc + * Copyright (C) 2005-2008, PA Semi, Inc * * Maintained by: Olof Johansson <olof@lixom.net> * @@ -27,7 +27,6 @@ #include <asm/abs_addr.h> #include <asm/firmware.h> - #define IOBMAP_PAGE_SHIFT 12 #define IOBMAP_PAGE_SIZE (1 << IOBMAP_PAGE_SHIFT) #define IOBMAP_PAGE_MASK (IOBMAP_PAGE_SIZE - 1) @@ -35,13 +34,13 @@ #define IOB_BASE 0xe0000000 #define IOB_SIZE 0x3000 /* Configuration registers */ -#define IOBCAP_REG 0x10 -#define IOBCOM_REG 0x40 +#define IOBCAP_REG 0x40 +#define IOBCOM_REG 0x100 /* Enable IOB address translation */ #define IOBCOM_ATEN 0x00000100 /* Address decode configuration register */ -#define IOB_AD_REG 0x53 +#define IOB_AD_REG 0x14c /* IOBCOM_AD_REG fields */ #define IOB_AD_VGPRT 0x00000e00 #define IOB_AD_VGAEN 0x00000100 @@ -56,13 +55,13 @@ #define IOB_AD_TRNG_2G 0x00000001 #define IOB_AD_TRNG_128G 0x00000003 -#define IOB_TABLEBASE_REG 0x55 +#define IOB_TABLEBASE_REG 0x154 /* Base of the 64 4-byte L1 registers */ -#define IOB_XLT_L1_REGBASE 0xac0 +#define IOB_XLT_L1_REGBASE 0x2b00 /* Register to invalidate TLB entries */ -#define IOB_AT_INVAL_TLB_REG 0xb40 +#define IOB_AT_INVAL_TLB_REG 0x2d00 /* The top two bits of the level 1 entry contains valid and type flags */ #define IOBMAP_L1E_V 0x40000000 @@ -76,7 +75,7 @@ #define IOBMAP_L2E_V 0x80000000 #define IOBMAP_L2E_V_CACHED 0xc0000000 -static u32 __iomem *iob; +static void __iomem *iob; static u32 iob_l1_emptyval; static u32 iob_l2_emptyval; static u32 *iob_l2_base; @@ -219,7 +218,7 @@ int __init iob_init(struct device_node *dn) for (i = 0; i < 64; i++) { /* Each L1 covers 32MB, i.e. 8K entries = 32K of ram */ regword = IOBMAP_L1E_V | (__pa(iob_l2_base + i*0x2000) >> 12); - out_le32(iob+IOB_XLT_L1_REGBASE+i, regword); + out_le32(iob+IOB_XLT_L1_REGBASE+i*4, regword); } /* set 2GB translation window, based at 0 */ |