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[POWERPC] 86xx: fix guts_set_dmacr() and add guts_set_pmuxcr_dma() to immap_86xx.h

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Updated guts_set_dmacr() to enumerate the DMA controllers at 0, instead of 1,
so that it now matches other related functions.  Added function
guts_set_pmuxcr_dma() to set the external DMA control bits in the PMUXCR
register of the global utilities structure.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Timur Tabi 2007-11-29 14:19:57 -06:00 committed by Kumar Gala
parent 41bad27ff7
commit c5eeb55999
1 changed files with 23 additions and 2 deletions
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25
include/asm-powerpc/immap_86xx.h
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@ -89,14 +89,14 @@ struct ccsr_guts {
* them.
*
* guts: Pointer to GUTS structure
* co: The DMA controller (1 or 2)
* co: The DMA controller (0 or 1)
* ch: The channel on the DMA controller (0, 1, 2, or 3)
* device: The device to set as the source (CCSR_GUTS_DMACR_DEV_xx)
*/
static inline void guts_set_dmacr(struct ccsr_guts __iomem *guts,
unsigned int co, unsigned int ch, unsigned int device)
{
unsigned int shift = 16 + (8 * (2 - co) + 2 * (3 - ch));
unsigned int shift = 16 + (8 * (1 - co) + 2 * (3 - ch));
clrsetbits_be32(&guts->dmacr, 3 << shift, device << shift);
}
@ -118,6 +118,27 @@ static inline void guts_set_dmacr(struct ccsr_guts __iomem *guts,
#define CCSR_GUTS_PMUXCR_DMA1_0 0x00000002
#define CCSR_GUTS_PMUXCR_DMA1_3 0x00000001
/*
* Set the DMA external control bits in the GUTS
*
* The DMA external control bits in the PMUXCR are only meaningful for
* channels 0 and 3. Any other channels are ignored.
*
* guts: Pointer to GUTS structure
* co: The DMA controller (0 or 1)
* ch: The channel on the DMA controller (0, 1, 2, or 3)
* value: the new value for the bit (0 or 1)
*/
static inline void guts_set_pmuxcr_dma(struct ccsr_guts __iomem *guts,
unsigned int co, unsigned int ch, unsigned int value)
{
if ((ch == 0) || (ch == 3)) {
unsigned int shift = 2 * (co + 1) - (ch & 1) - 1;
clrsetbits_be32(&guts->pmuxcr, 1 << shift, value << shift);
}
}
#define CCSR_GUTS_CLKDVDR_PXCKEN 0x80000000
#define CCSR_GUTS_CLKDVDR_SSICKEN 0x20000000
#define CCSR_GUTS_CLKDVDR_PXCKINV 0x10000000