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Diffstat (limited to 'arch/mips/txx9/generic/setup_tx4927.c')
-rw-r--r--arch/mips/txx9/generic/setup_tx4927.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/mips/txx9/generic/setup_tx4927.c b/arch/mips/txx9/generic/setup_tx4927.c
index 1093549df1a..3418b2a90f7 100644
--- a/arch/mips/txx9/generic/setup_tx4927.c
+++ b/arch/mips/txx9/generic/setup_tx4927.c
@@ -22,6 +22,7 @@
#include <asm/txx9tmr.h>
#include <asm/txx9pio.h>
#include <asm/txx9/generic.h>
+#include <asm/txx9/dmac.h>
#include <asm/txx9/tx4927.h>
static void __init tx4927_wdr_init(void)
@@ -253,6 +254,60 @@ void __init tx4927_mtd_init(int ch)
txx9_physmap_flash_init(ch, start, size, &pdata);
}
+void __init tx4927_dmac_init(int memcpy_chan)
+{
+ struct txx9dmac_platform_data plat_data = {
+ .memcpy_chan = memcpy_chan,
+ .have_64bit_regs = true,
+ };
+
+ txx9_dmac_init(0, TX4927_DMA_REG & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4927_IR_DMA(0), &plat_data);
+}
+
+void __init tx4927_aclc_init(unsigned int dma_chan_out,
+ unsigned int dma_chan_in)
+{
+ u64 pcfg = __raw_readq(&tx4927_ccfgptr->pcfg);
+ __u64 dmasel_mask = 0, dmasel = 0;
+ unsigned long flags;
+
+ if (!(pcfg & TX4927_PCFG_SEL2))
+ return;
+ /* setup DMASEL (playback:ACLC ch0, capture:ACLC ch1) */
+ switch (dma_chan_out) {
+ case 0:
+ dmasel_mask |= TX4927_PCFG_DMASEL0_MASK;
+ dmasel |= TX4927_PCFG_DMASEL0_ACL0;
+ break;
+ case 2:
+ dmasel_mask |= TX4927_PCFG_DMASEL2_MASK;
+ dmasel |= TX4927_PCFG_DMASEL2_ACL0;
+ break;
+ default:
+ return;
+ }
+ switch (dma_chan_in) {
+ case 1:
+ dmasel_mask |= TX4927_PCFG_DMASEL1_MASK;
+ dmasel |= TX4927_PCFG_DMASEL1_ACL1;
+ break;
+ case 3:
+ dmasel_mask |= TX4927_PCFG_DMASEL3_MASK;
+ dmasel |= TX4927_PCFG_DMASEL3_ACL1;
+ break;
+ default:
+ return;
+ }
+ local_irq_save(flags);
+ txx9_clear64(&tx4927_ccfgptr->pcfg, dmasel_mask);
+ txx9_set64(&tx4927_ccfgptr->pcfg, dmasel);
+ local_irq_restore(flags);
+ txx9_aclc_init(TX4927_ACLC_REG & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4927_IR_ACLC,
+ 0, dma_chan_out, dma_chan_in);
+}
+
static void __init tx4927_stop_unused_modules(void)
{
__u64 pcfg, rst = 0, ckd = 0;