diff options
| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2009-05-19 17:12:22 +0400 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-06-17 14:06:25 +0400 |
| commit | 742cd5867b2ef7ce865d7ab67574c4e3aa1fb155 (patch) | |
| tree | b167001ac5f1c165ff29b4cacd16db94f50c7b77 /arch/mips/txx9/generic/setup_tx4927.c | |
| parent | e8635b484f644c7873e6091f15330c49396f2cbc (diff) | |
| download | linux-742cd5867b2ef7ce865d7ab67574c4e3aa1fb155.tar.xz | |
MIPS: TXx9: Add ACLC support
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>
Diffstat (limited to 'arch/mips/txx9/generic/setup_tx4927.c')
| -rw-r--r-- | arch/mips/txx9/generic/setup_tx4927.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/mips/txx9/generic/setup_tx4927.c b/arch/mips/txx9/generic/setup_tx4927.c index 6b681cd7f8fb..3418b2a90f7e 100644 --- a/arch/mips/txx9/generic/setup_tx4927.c +++ b/arch/mips/txx9/generic/setup_tx4927.c @@ -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; |