diff options
Diffstat (limited to 'arch/arm/kernel/dma-isa.c')
-rw-r--r-- | arch/arm/kernel/dma-isa.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/arch/arm/kernel/dma-isa.c b/arch/arm/kernel/dma-isa.c index 29eca48925d8..da02a7ff3419 100644 --- a/arch/arm/kernel/dma-isa.c +++ b/arch/arm/kernel/dma-isa.c | |||
@@ -160,7 +160,12 @@ static struct resource dma_resources[] = { { | |||
160 | .end = 0x048f | 160 | .end = 0x048f |
161 | } }; | 161 | } }; |
162 | 162 | ||
163 | void __init isa_init_dma(dma_t *dma) | 163 | static dma_t isa_dma[8]; |
164 | |||
165 | /* | ||
166 | * ISA DMA always starts at channel 0 | ||
167 | */ | ||
168 | void __init isa_init_dma(void) | ||
164 | { | 169 | { |
165 | /* | 170 | /* |
166 | * Try to autodetect presence of an ISA DMA controller. | 171 | * Try to autodetect presence of an ISA DMA controller. |
@@ -178,10 +183,10 @@ void __init isa_init_dma(dma_t *dma) | |||
178 | outb(0xaa, 0x00); | 183 | outb(0xaa, 0x00); |
179 | 184 | ||
180 | if (inb(0) == 0x55 && inb(0) == 0xaa) { | 185 | if (inb(0) == 0x55 && inb(0) == 0xaa) { |
181 | int chan, i; | 186 | unsigned int chan, i; |
182 | 187 | ||
183 | for (chan = 0; chan < 8; chan++) { | 188 | for (chan = 0; chan < 8; chan++) { |
184 | dma[chan].d_ops = &isa_dma_ops; | 189 | isa_dma[chan].d_ops = &isa_dma_ops; |
185 | isa_disable_dma(chan, NULL); | 190 | isa_disable_dma(chan, NULL); |
186 | } | 191 | } |
187 | 192 | ||
@@ -217,5 +222,12 @@ void __init isa_init_dma(dma_t *dma) | |||
217 | 222 | ||
218 | for (i = 0; i < ARRAY_SIZE(dma_resources); i++) | 223 | for (i = 0; i < ARRAY_SIZE(dma_resources); i++) |
219 | request_resource(&ioport_resource, dma_resources + i); | 224 | request_resource(&ioport_resource, dma_resources + i); |
225 | |||
226 | for (chan = 0; chan < 8; chan++) { | ||
227 | int ret = isa_dma_add(chan, &isa_dma[chan]); | ||
228 | if (ret) | ||
229 | printk(KERN_ERR "ISADMA%u: unable to register: %d\n", | ||
230 | chan, ret); | ||
231 | } | ||
220 | } | 232 | } |
221 | } | 233 | } |