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sh: Kill off MAX_DMA_ADDRESS leftovers.

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We don't support the ISA DMA API, so this is only ever misused. The
dma-sh case inadvertently broke the dreamcast case by testing the wrong
variable for the total number of channels, so this fixes that up too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2012-05-19 18:50:09 +09:00
parent 2ff9f317f1
commit e24cca19ba
5 changed files with 9 additions and 36 deletions
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17
arch/sh/drivers/dma/Kconfig
View file

@ -40,23 +40,6 @@ config NR_ONCHIP_DMA_CHANNELS
DMAC supports. This will be 4 for SH7750/SH7751/Sh7750S/SH7091 and 8 for the
SH7750R/SH7751R/SH7760, 12 for the SH7723/SH7780/SH7785/SH7724, default is 6.
config NR_DMA_CHANNELS_BOOL
depends on SH_DMA
bool "Override default number of maximum DMA channels"
help
This allows you to forcibly update the maximum number of supported
DMA channels for a given board. If this is unset, this will default
to the number of channels that the on-chip DMAC has.
config NR_DMA_CHANNELS
int "Maximum number of DMA channels"
depends on SH_DMA && NR_DMA_CHANNELS_BOOL
default NR_ONCHIP_DMA_CHANNELS
help
This allows you to specify the maximum number of DMA channels to
support. Setting this to a higher value allows for cascading DMACs
with additional channels.
config SH_DMABRG
bool "SH7760 DMABRG support"
depends on CPU_SUBTYPE_SH7760

2
arch/sh/drivers/dma/dma-sysfs.c
View file

@ -29,7 +29,7 @@ static ssize_t dma_show_devices(struct device *dev,
ssize_t len = 0;
int i;
for (i = 0; i < MAX_DMA_CHANNELS; i++) {
for (i = 0; i < 16; i++) {
struct dma_info *info = get_dma_info(i);
struct dma_channel *channel = get_dma_channel(i);

16
arch/sh/include/asm/dma-sh.h
View file

@ -32,21 +32,21 @@
#endif
static int dmte_irq_map[] __maybe_unused = {
#if (MAX_DMA_CHANNELS >= 4)
#if (CONFIG_NR_ONCHIP_DMA_CHANNELS >= 4)
DMTE0_IRQ,
DMTE0_IRQ + 1,
DMTE0_IRQ + 2,
DMTE0_IRQ + 3,
#endif
#if (MAX_DMA_CHANNELS >= 6)
#if (CONFIG_NR_ONCHIP_DMA_CHANNELS >= 6)
DMTE4_IRQ,
DMTE4_IRQ + 1,
#endif
#if (MAX_DMA_CHANNELS >= 8)
#if (CONFIG_NR_ONCHIP_DMA_CHANNELS >= 8)
DMTE6_IRQ,
DMTE6_IRQ + 1,
#endif
#if (MAX_DMA_CHANNELS >= 12)
#if (CONFIG_NR_ONCHIP_DMA_CHANNELS >= 12)
DMTE8_IRQ,
DMTE9_IRQ,
DMTE10_IRQ,
@ -62,21 +62,21 @@ static int dmte_irq_map[] __maybe_unused = {
/* DMA base address */
static u32 dma_base_addr[] __maybe_unused = {
#if (MAX_DMA_CHANNELS >= 4)
#if (CONFIG_NR_ONCHIP_DMA_CHANNELS >= 4)
SH_DMAC_BASE0 + 0x00, /* channel 0 */
SH_DMAC_BASE0 + 0x10,
SH_DMAC_BASE0 + 0x20,
SH_DMAC_BASE0 + 0x30,
#endif
#if (MAX_DMA_CHANNELS >= 6)
#if (CONFIG_NR_ONCHIP_DMA_CHANNELS >= 6)
SH_DMAC_BASE0 + 0x50,
SH_DMAC_BASE0 + 0x60,
#endif
#if (MAX_DMA_CHANNELS >= 8)
#if (CONFIG_NR_ONCHIP_DMA_CHANNELS >= 8)
SH_DMAC_BASE1 + 0x00,
SH_DMAC_BASE1 + 0x10,
#endif
#if (MAX_DMA_CHANNELS >= 12)
#if (CONFIG_NR_ONCHIP_DMA_CHANNELS >= 12)
SH_DMAC_BASE1 + 0x20,
SH_DMAC_BASE1 + 0x30,
SH_DMAC_BASE1 + 0x50,

8
arch/sh/include/asm/dma.h
View file

@ -17,14 +17,6 @@
#include <linux/device.h>
#include <asm-generic/dma.h>
#ifdef CONFIG_NR_DMA_CHANNELS
# define MAX_DMA_CHANNELS (CONFIG_NR_DMA_CHANNELS)
#elif defined(CONFIG_NR_ONCHIP_DMA_CHANNELS)
# define MAX_DMA_CHANNELS (CONFIG_NR_ONCHIP_DMA_CHANNELS)
#else
# define MAX_DMA_CHANNELS 0
#endif
/*
* Read and write modes can mean drastically different things depending on the
* channel configuration. Consult your DMAC documentation and module

2
arch/sh/include/mach-dreamcast/mach/dma.h
View file

@ -11,9 +11,7 @@
#define __ASM_SH_DREAMCAST_DMA_H
/* Number of DMA channels */
#define ONCHIP_NR_DMA_CHANNELS 4
#define G2_NR_DMA_CHANNELS 4
#define PVR2_NR_DMA_CHANNELS 1
/* Channels for cascading */
#define PVR2_CASCADE_CHAN 2