lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

MIPS: TXx9: Add ACLC support

Browse Source 
Add platform support for ACLC of TXx9 SoCs.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Atsushi Nemoto
2009-05-19 22:12:22 +09:00
committed by Ralf Baechle
parent e8635b484f
commit 742cd5867b
12 changed files with 121 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
arch/mips/txx9/generic/setup_tx4927.c
View File

@@ -265,6 +265,49 @@ void __init tx4927_dmac_init(int memcpy_chan)
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;