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[PATCH] TXx9: Add ACLC support

To: linux-mips@linux-mips.org
Subject: [PATCH] TXx9: Add ACLC support
From: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Date: Thu, 14 May 2009 23:50:05 +0900
Cc: ralf@linux-mips.org, alsa-devel@alsa-project.org, Mark Brown <broonie@opensource.wolfsonmicro.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
Add platform support for ACLC of TXx9 SoCs.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
---
This patch depends on txx9dmac patch (platform) in linux-mips queue
tree or linux-next tree.

 arch/mips/include/asm/txx9/generic.h  |    5 ++++
 arch/mips/include/asm/txx9/tx4927.h   |    2 +
 arch/mips/include/asm/txx9/tx4938.h   |    1 +
 arch/mips/include/asm/txx9/tx4939.h   |    1 +
 arch/mips/txx9/Kconfig                |    3 ++
 arch/mips/txx9/generic/setup.c        |   36 +++++++++++++++++++++++++++
 arch/mips/txx9/generic/setup_tx4927.c |   43 +++++++++++++++++++++++++++++++++
 arch/mips/txx9/generic/setup_tx4938.c |   11 ++++++++
 arch/mips/txx9/generic/setup_tx4939.c |    9 +++++++
 arch/mips/txx9/rbtx4927/setup.c       |    7 ++++-
 arch/mips/txx9/rbtx4938/setup.c       |    1 +
 arch/mips/txx9/rbtx4939/setup.c       |    1 +
 12 files changed, 118 insertions(+), 2 deletions(-)

diff --git a/arch/mips/include/asm/txx9/generic.h 
b/arch/mips/include/asm/txx9/generic.h
index 9cde009..8169477 100644
--- a/arch/mips/include/asm/txx9/generic.h
+++ b/arch/mips/include/asm/txx9/generic.h
@@ -91,4 +91,9 @@ void txx9_7segled_init(unsigned int num,
                       void (*putc)(unsigned int pos, unsigned char val));
 int txx9_7segled_putc(unsigned int pos, char c);
 
+void __init txx9_aclc_init(unsigned long baseaddr, int irq,
+                          unsigned int dmac_id,
+                          unsigned int dma_chan_out,
+                          unsigned int dma_chan_in);
+
 #endif /* __ASM_TXX9_GENERIC_H */
diff --git a/arch/mips/include/asm/txx9/tx4927.h 
b/arch/mips/include/asm/txx9/tx4927.h
index d92ae07..18c98c5 100644
--- a/arch/mips/include/asm/txx9/tx4927.h
+++ b/arch/mips/include/asm/txx9/tx4927.h
@@ -50,6 +50,7 @@
 #define TX4927_NR_SIO  2
 #define TX4927_SIO_REG(ch)     (TX4927_REG_BASE + 0xf300 + (ch) * 0x100)
 #define TX4927_PIO_REG         (TX4927_REG_BASE + 0xf500)
+#define TX4927_ACLC_REG                (TX4927_REG_BASE + 0xf700)
 
 #define TX4927_IR_ECCERR       0
 #define TX4927_IR_WTOERR       1
@@ -267,5 +268,6 @@ void tx4927_setup_pcierr_irq(void);
 void tx4927_irq_init(void);
 void tx4927_mtd_init(int ch);
 void tx4927_dmac_init(int memcpy_chan);
+void tx4927_aclc_init(unsigned int dma_chan_out, unsigned int dma_chan_in);
 
 #endif /* __ASM_TXX9_TX4927_H */
diff --git a/arch/mips/include/asm/txx9/tx4938.h 
b/arch/mips/include/asm/txx9/tx4938.h
index 0758a0c..54e4674 100644
--- a/arch/mips/include/asm/txx9/tx4938.h
+++ b/arch/mips/include/asm/txx9/tx4938.h
@@ -306,5 +306,6 @@ struct tx4938ide_platform_info {
 
 void tx4938_ata_init(unsigned int irq, unsigned int shift, int tune);
 void tx4938_dmac_init(int memcpy_chan0, int memcpy_chan1);
+void tx4938_aclc_init(void);
 
 #endif
diff --git a/arch/mips/include/asm/txx9/tx4939.h 
b/arch/mips/include/asm/txx9/tx4939.h
index 1be9798..f13b708 100644
--- a/arch/mips/include/asm/txx9/tx4939.h
+++ b/arch/mips/include/asm/txx9/tx4939.h
@@ -545,5 +545,6 @@ void tx4939_rtc_init(void);
 void tx4939_ndfmc_init(unsigned int hold, unsigned int spw,
                       unsigned char ch_mask, unsigned char wide_mask);
 void tx4939_dmac_init(int memcpy_chan0, int memcpy_chan1);
+void tx4939_aclc_init(void);
 
 #endif /* __ASM_TXX9_TX4939_H */
diff --git a/arch/mips/txx9/Kconfig b/arch/mips/txx9/Kconfig
index 0db7cf3..852ae4b 100644
--- a/arch/mips/txx9/Kconfig
+++ b/arch/mips/txx9/Kconfig
@@ -69,6 +69,7 @@ config SOC_TX4927
        select IRQ_TXX9
        select PCI_TX4927
        select GPIO_TXX9
+       select HAS_TXX9_ACLC
 
 config SOC_TX4938
        bool
@@ -78,6 +79,7 @@ config SOC_TX4938
        select IRQ_TXX9
        select PCI_TX4927
        select GPIO_TXX9
+       select HAS_TXX9_ACLC
 
 config SOC_TX4939
        bool
@@ -85,6 +87,7 @@ config SOC_TX4939
        select HAS_TXX9_SERIAL
        select HW_HAS_PCI
        select PCI_TX4927
+       select HAS_TXX9_ACLC
 
 config TXX9_7SEGLED
        bool
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 369d863..bc358ab 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -876,3 +876,39 @@ void __init txx9_dmac_init(int id, unsigned long baseaddr, 
int irq,
        }
 #endif
 }
+
+void __init txx9_aclc_init(unsigned long baseaddr, int irq,
+                          unsigned int dmac_id,
+                          unsigned int dma_chan_out,
+                          unsigned int dma_chan_in)
+{
+#if defined(CONFIG_SND_SOC_TXX9ACLC_GENERIC) || \
+       defined(CONFIG_SND_SOC_TXX9ACLC_GENERIC_MODULE)
+       unsigned int dma_base = dmac_id * TXX9_DMA_MAX_NR_CHANNELS;
+       struct resource res[] = {
+               {
+                       .start = baseaddr,
+                       .end = baseaddr + 0x100 - 1,
+                       .flags = IORESOURCE_MEM,
+               }, {
+                       .start = irq,
+                       .flags = IORESOURCE_IRQ,
+               }, {
+                       .name = "txx9dmac-chan",
+                       .start = dma_base + dma_chan_out,
+                       .flags = IORESOURCE_DMA,
+               }, {
+                       .name = "txx9dmac-chan",
+                       .start = dma_base + dma_chan_in,
+                       .flags = IORESOURCE_DMA,
+               }
+       };
+       struct platform_device *pdev =
+               platform_device_alloc("txx9aclc-generic", -1);
+
+       if (!pdev ||
+           platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
+           platform_device_add(pdev))
+               platform_device_put(pdev);
+#endif
+}
diff --git a/arch/mips/txx9/generic/setup_tx4927.c 
b/arch/mips/txx9/generic/setup_tx4927.c
index 6b681cd..3418b2a 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;
diff --git a/arch/mips/txx9/generic/setup_tx4938.c 
b/arch/mips/txx9/generic/setup_tx4938.c
index b2b8529..4dfdb52 100644
--- a/arch/mips/txx9/generic/setup_tx4938.c
+++ b/arch/mips/txx9/generic/setup_tx4938.c
@@ -414,6 +414,17 @@ void __init tx4938_dmac_init(int memcpy_chan0, int 
memcpy_chan1)
        }
 }
 
+void __init tx4938_aclc_init(void)
+{
+       u64 pcfg = __raw_readq(&tx4938_ccfgptr->pcfg);
+
+       if ((pcfg & TX4938_PCFG_SEL2) &&
+           !(pcfg & TX4938_PCFG_ETH0_SEL))
+               txx9_aclc_init(TX4938_ACLC_REG & 0xfffffffffULL,
+                              TXX9_IRQ_BASE + TX4938_IR_ACLC,
+                              1, 0, 1);
+}
+
 static void __init tx4938_stop_unused_modules(void)
 {
        __u64 pcfg, rst = 0, ckd = 0;
diff --git a/arch/mips/txx9/generic/setup_tx4939.c 
b/arch/mips/txx9/generic/setup_tx4939.c
index 98effef..7139686 100644
--- a/arch/mips/txx9/generic/setup_tx4939.c
+++ b/arch/mips/txx9/generic/setup_tx4939.c
@@ -485,6 +485,15 @@ void __init tx4939_dmac_init(int memcpy_chan0, int 
memcpy_chan1)
        }
 }
 
+void __init tx4939_aclc_init(void)
+{
+       u64 pcfg = __raw_readq(&tx4939_ccfgptr->pcfg);
+
+       if ((pcfg & TX4939_PCFG_I2SMODE_MASK) == TX4939_PCFG_I2SMODE_ACLC)
+               txx9_aclc_init(TX4939_ACLC_REG & 0xfffffffffULL,
+                              TXX9_IRQ_BASE + TX4939_IR_ACLC, 1, 0, 1);
+}
+
 static void __init tx4939_stop_unused_modules(void)
 {
        __u64 pcfg, rst = 0, ckd = 0;
diff --git a/arch/mips/txx9/rbtx4927/setup.c b/arch/mips/txx9/rbtx4927/setup.c
index 332cdbc..ece43db 100644
--- a/arch/mips/txx9/rbtx4927/setup.c
+++ b/arch/mips/txx9/rbtx4927/setup.c
@@ -337,10 +337,13 @@ static void __init rbtx4927_device_init(void)
        rbtx4927_ne_init();
        tx4927_wdt_init();
        rbtx4927_mtd_init();
-       if (TX4927_REV_PCODE() == 0x4927)
+       if (TX4927_REV_PCODE() == 0x4927) {
                tx4927_dmac_init(2);
-       else
+               tx4927_aclc_init(0, 1);
+       } else {
                tx4938_dmac_init(0, 2);
+               tx4938_aclc_init();
+       }
        txx9_iocled_init(RBTX4927_LED_ADDR - IO_BASE, -1, 3, 1, "green", NULL);
        rbtx4927_gpioled_init();
 }
diff --git a/arch/mips/txx9/rbtx4938/setup.c b/arch/mips/txx9/rbtx4938/setup.c
index 37c5e3d..c0aa889 100644
--- a/arch/mips/txx9/rbtx4938/setup.c
+++ b/arch/mips/txx9/rbtx4938/setup.c
@@ -356,6 +356,7 @@ static void __init rbtx4938_device_init(void)
        tx4938_ndfmc_init(10, 35);
        tx4938_ata_init(RBTX4938_IRQ_IOC_ATA, 0, 1);
        tx4938_dmac_init(0, 2);
+       tx4938_aclc_init();
        txx9_iocled_init(RBTX4938_LED_ADDR - IO_BASE, -1, 8, 1, "green", NULL);
 }
 
diff --git a/arch/mips/txx9/rbtx4939/setup.c b/arch/mips/txx9/rbtx4939/setup.c
index 91f2ec8..1d01126 100644
--- a/arch/mips/txx9/rbtx4939/setup.c
+++ b/arch/mips/txx9/rbtx4939/setup.c
@@ -499,6 +499,7 @@ static void __init rbtx4939_device_init(void)
        tx4939_ata_init();
        tx4939_rtc_init();
        tx4939_dmac_init(0, 2);
+       tx4939_aclc_init();
 }
 
 static void __init rbtx4939_setup(void)
-- 
1.5.6.5


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