MIPS: TXx9: Add DMAC support
Add platform support for DMAC of TXx9 SoCs.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/txx9/generic/setup_tx4938.c b/arch/mips/txx9/generic/setup_tx4938.c
index 3925219..b2b8529 100644
--- a/arch/mips/txx9/generic/setup_tx4938.c
+++ b/arch/mips/txx9/generic/setup_tx4938.c
@@ -24,6 +24,7 @@
#include <asm/txx9pio.h>
#include <asm/txx9/generic.h>
#include <asm/txx9/ndfmc.h>
+#include <asm/txx9/dmac.h>
#include <asm/txx9/tx4938.h>
static void __init tx4938_wdr_init(void)
@@ -239,11 +240,6 @@
for (i = 0; i < TX4938_NR_TMR; i++)
txx9_tmr_init(TX4938_TMR_REG(i) & 0xfffffffffULL);
- /* DMA */
- for (i = 0; i < 2; i++)
- ____raw_writeq(TX4938_DMA_MCR_MSTEN,
- (void __iomem *)(TX4938_DMA_REG(i) + 0x50));
-
/* PIO */
txx9_gpio_init(TX4938_PIO_REG & 0xfffffffffULL, 0, TX4938_NUM_PIO);
__raw_writel(0, &tx4938_pioptr->maskcpu);
@@ -403,6 +399,21 @@
txx9_ndfmc_init(baseaddr, &plat_data);
}
+void __init tx4938_dmac_init(int memcpy_chan0, int memcpy_chan1)
+{
+ struct txx9dmac_platform_data plat_data = {
+ .have_64bit_regs = true,
+ };
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ plat_data.memcpy_chan = i ? memcpy_chan1 : memcpy_chan0;
+ txx9_dmac_init(i, TX4938_DMA_REG(i) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4938_IR_DMA(i, 0),
+ &plat_data);
+ }
+}
+
static void __init tx4938_stop_unused_modules(void)
{
__u64 pcfg, rst = 0, ckd = 0;