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[PATCH 10/15] MIPS: Alchemy: clean DMA code of CONFIG_SOC_AU1??? defines

To: Linux-MIPS <linux-mips@linux-mips.org>, Ralf Baechle <ralf@linux-mips.org>
Subject: [PATCH 10/15] MIPS: Alchemy: clean DMA code of CONFIG_SOC_AU1??? defines
From: Manuel Lauss <manuel.lauss@googlemail.com>
Date: Tue, 2 Aug 2011 19:51:05 +0200
Cc: Manuel Lauss <manuel.lauss@googlemail.com>
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This patch gets rid of all CONFIG_SOC_AU1XXX defines in
DMA/DBDMA-related code.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
---
 arch/mips/alchemy/common/dbdma.c                 |  203 ++++++++++------------
 arch/mips/alchemy/common/dma.c                   |   60 +++----
 arch/mips/alchemy/common/platform.c              |   16 +-
 arch/mips/alchemy/devboards/db1200/platform.c    |   20 +-
 arch/mips/alchemy/devboards/pb1200/platform.c    |    4 +-
 arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h |  114 ++++++-------
 arch/mips/include/asm/mach-db1x00/db1x00.h       |    8 +-
 arch/mips/include/asm/mach-pb1x00/pb1200.h       |    8 +-
 arch/mips/include/asm/mach-pb1x00/pb1550.h       |    8 +-
 9 files changed, 206 insertions(+), 235 deletions(-)

diff --git a/arch/mips/alchemy/common/dbdma.c b/arch/mips/alchemy/common/dbdma.c
index 3a5abb5..0e63ee4 100644
--- a/arch/mips/alchemy/common/dbdma.c
+++ b/arch/mips/alchemy/common/dbdma.c
@@ -40,8 +40,6 @@
 #include <asm/mach-au1x00/au1000.h>
 #include <asm/mach-au1x00/au1xxx_dbdma.h>
 
-#if defined(CONFIG_SOC_AU1550) || defined(CONFIG_SOC_AU1200)
-
 /*
  * The Descriptor Based DMA supports up to 16 channels.
  *
@@ -62,120 +60,96 @@ static dbdma_global_t *dbdma_gptr =
                        (dbdma_global_t 
*)KSEG1ADDR(AU1550_DBDMA_CONF_PHYS_ADDR);
 static int dbdma_initialized;
 
-static dbdev_tab_t dbdev_tab[] = {
-#ifdef CONFIG_SOC_AU1550
+static dbdev_tab_t *dbdev_tab;
+
+static dbdev_tab_t au1550_dbdev_tab[] __initdata = {
        /* UARTS */
-       { DSCR_CMD0_UART0_TX, DEV_FLAGS_OUT, 0, 8, 0x11100004, 0, 0 },
-       { DSCR_CMD0_UART0_RX, DEV_FLAGS_IN, 0, 8, 0x11100000, 0, 0 },
-       { DSCR_CMD0_UART3_TX, DEV_FLAGS_OUT, 0, 8, 0x11400004, 0, 0 },
-       { DSCR_CMD0_UART3_RX, DEV_FLAGS_IN, 0, 8, 0x11400000, 0, 0 },
+       { AU1550_DSCR_CMD0_UART0_TX, DEV_FLAGS_OUT, 0, 8, 0x11100004, 0, 0 },
+       { AU1550_DSCR_CMD0_UART0_RX, DEV_FLAGS_IN,  0, 8, 0x11100000, 0, 0 },
+       { AU1550_DSCR_CMD0_UART3_TX, DEV_FLAGS_OUT, 0, 8, 0x11400004, 0, 0 },
+       { AU1550_DSCR_CMD0_UART3_RX, DEV_FLAGS_IN,  0, 8, 0x11400000, 0, 0 },
 
        /* EXT DMA */
-       { DSCR_CMD0_DMA_REQ0, 0, 0, 0, 0x00000000, 0, 0 },
-       { DSCR_CMD0_DMA_REQ1, 0, 0, 0, 0x00000000, 0, 0 },
-       { DSCR_CMD0_DMA_REQ2, 0, 0, 0, 0x00000000, 0, 0 },
-       { DSCR_CMD0_DMA_REQ3, 0, 0, 0, 0x00000000, 0, 0 },
+       { AU1550_DSCR_CMD0_DMA_REQ0, 0, 0, 0, 0x00000000, 0, 0 },
+       { AU1550_DSCR_CMD0_DMA_REQ1, 0, 0, 0, 0x00000000, 0, 0 },
+       { AU1550_DSCR_CMD0_DMA_REQ2, 0, 0, 0, 0x00000000, 0, 0 },
+       { AU1550_DSCR_CMD0_DMA_REQ3, 0, 0, 0, 0x00000000, 0, 0 },
 
        /* USB DEV */
-       { DSCR_CMD0_USBDEV_RX0, DEV_FLAGS_IN, 4, 8, 0x10200000, 0, 0 },
-       { DSCR_CMD0_USBDEV_TX0, DEV_FLAGS_OUT, 4, 8, 0x10200004, 0, 0 },
-       { DSCR_CMD0_USBDEV_TX1, DEV_FLAGS_OUT, 4, 8, 0x10200008, 0, 0 },
-       { DSCR_CMD0_USBDEV_TX2, DEV_FLAGS_OUT, 4, 8, 0x1020000c, 0, 0 },
-       { DSCR_CMD0_USBDEV_RX3, DEV_FLAGS_IN, 4, 8, 0x10200010, 0, 0 },
-       { DSCR_CMD0_USBDEV_RX4, DEV_FLAGS_IN, 4, 8, 0x10200014, 0, 0 },
-
-       /* PSC 0 */
-       { DSCR_CMD0_PSC0_TX, DEV_FLAGS_OUT, 0, 0, 0x11a0001c, 0, 0 },
-       { DSCR_CMD0_PSC0_RX, DEV_FLAGS_IN, 0, 0, 0x11a0001c, 0, 0 },
-
-       /* PSC 1 */
-       { DSCR_CMD0_PSC1_TX, DEV_FLAGS_OUT, 0, 0, 0x11b0001c, 0, 0 },
-       { DSCR_CMD0_PSC1_RX, DEV_FLAGS_IN, 0, 0, 0x11b0001c, 0, 0 },
-
-       /* PSC 2 */
-       { DSCR_CMD0_PSC2_TX, DEV_FLAGS_OUT, 0, 0, 0x10a0001c, 0, 0 },
-       { DSCR_CMD0_PSC2_RX, DEV_FLAGS_IN, 0, 0, 0x10a0001c, 0, 0 },
-
-       /* PSC 3 */
-       { DSCR_CMD0_PSC3_TX, DEV_FLAGS_OUT, 0, 0, 0x10b0001c, 0, 0 },
-       { DSCR_CMD0_PSC3_RX, DEV_FLAGS_IN, 0, 0, 0x10b0001c, 0, 0 },
-
-       { DSCR_CMD0_PCI_WRITE, 0, 0, 0, 0x00000000, 0, 0 },     /* PCI */
-       { DSCR_CMD0_NAND_FLASH, 0, 0, 0, 0x00000000, 0, 0 },    /* NAND */
+       { AU1550_DSCR_CMD0_USBDEV_RX0, DEV_FLAGS_IN,  4, 8, 0x10200000, 0, 0 },
+       { AU1550_DSCR_CMD0_USBDEV_TX0, DEV_FLAGS_OUT, 4, 8, 0x10200004, 0, 0 },
+       { AU1550_DSCR_CMD0_USBDEV_TX1, DEV_FLAGS_OUT, 4, 8, 0x10200008, 0, 0 },
+       { AU1550_DSCR_CMD0_USBDEV_TX2, DEV_FLAGS_OUT, 4, 8, 0x1020000c, 0, 0 },
+       { AU1550_DSCR_CMD0_USBDEV_RX3, DEV_FLAGS_IN,  4, 8, 0x10200010, 0, 0 },
+       { AU1550_DSCR_CMD0_USBDEV_RX4, DEV_FLAGS_IN,  4, 8, 0x10200014, 0, 0 },
+
+       /* PSCs */
+       { AU1550_DSCR_CMD0_PSC0_TX, DEV_FLAGS_OUT, 0, 0, 0x11a0001c, 0, 0 },
+       { AU1550_DSCR_CMD0_PSC0_RX, DEV_FLAGS_IN,  0, 0, 0x11a0001c, 0, 0 },
+       { AU1550_DSCR_CMD0_PSC1_TX, DEV_FLAGS_OUT, 0, 0, 0x11b0001c, 0, 0 },
+       { AU1550_DSCR_CMD0_PSC1_RX, DEV_FLAGS_IN,  0, 0, 0x11b0001c, 0, 0 },
+       { AU1550_DSCR_CMD0_PSC2_TX, DEV_FLAGS_OUT, 0, 0, 0x10a0001c, 0, 0 },
+       { AU1550_DSCR_CMD0_PSC2_RX, DEV_FLAGS_IN,  0, 0, 0x10a0001c, 0, 0 },
+       { AU1550_DSCR_CMD0_PSC3_TX, DEV_FLAGS_OUT, 0, 0, 0x10b0001c, 0, 0 },
+       { AU1550_DSCR_CMD0_PSC3_RX, DEV_FLAGS_IN,  0, 0, 0x10b0001c, 0, 0 },
+
+       { AU1550_DSCR_CMD0_PCI_WRITE,  0, 0, 0, 0x00000000, 0, 0 },  /* PCI */
+       { AU1550_DSCR_CMD0_NAND_FLASH, 0, 0, 0, 0x00000000, 0, 0 }, /* NAND */
 
        /* MAC 0 */
-       { DSCR_CMD0_MAC0_RX, DEV_FLAGS_IN, 0, 0, 0x00000000, 0, 0 },
-       { DSCR_CMD0_MAC0_TX, DEV_FLAGS_OUT, 0, 0, 0x00000000, 0, 0 },
+       { AU1550_DSCR_CMD0_MAC0_RX, DEV_FLAGS_IN,  0, 0, 0x00000000, 0, 0 },
+       { AU1550_DSCR_CMD0_MAC0_TX, DEV_FLAGS_OUT, 0, 0, 0x00000000, 0, 0 },
 
        /* MAC 1 */
-       { DSCR_CMD0_MAC1_RX, DEV_FLAGS_IN, 0, 0, 0x00000000, 0, 0 },
-       { DSCR_CMD0_MAC1_TX, DEV_FLAGS_OUT, 0, 0, 0x00000000, 0, 0 },
-
-#endif /* CONFIG_SOC_AU1550 */
+       { AU1550_DSCR_CMD0_MAC1_RX, DEV_FLAGS_IN,  0, 0, 0x00000000, 0, 0 },
+       { AU1550_DSCR_CMD0_MAC1_TX, DEV_FLAGS_OUT, 0, 0, 0x00000000, 0, 0 },
 
-#ifdef CONFIG_SOC_AU1200
-       { DSCR_CMD0_UART0_TX, DEV_FLAGS_OUT, 0, 8, 0x11100004, 0, 0 },
-       { DSCR_CMD0_UART0_RX, DEV_FLAGS_IN, 0, 8, 0x11100000, 0, 0 },
-       { DSCR_CMD0_UART1_TX, DEV_FLAGS_OUT, 0, 8, 0x11200004, 0, 0 },
-       { DSCR_CMD0_UART1_RX, DEV_FLAGS_IN, 0, 8, 0x11200000, 0, 0 },
-
-       { DSCR_CMD0_DMA_REQ0, 0, 0, 0, 0x00000000, 0, 0 },
-       { DSCR_CMD0_DMA_REQ1, 0, 0, 0, 0x00000000, 0, 0 },
+       { DSCR_CMD0_THROTTLE, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+       { DSCR_CMD0_ALWAYS,   DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+};
 
-       { DSCR_CMD0_MAE_BE, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
-       { DSCR_CMD0_MAE_FE, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
-       { DSCR_CMD0_MAE_BOTH, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
-       { DSCR_CMD0_LCD, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+static dbdev_tab_t au1200_dbdev_tab[] __initdata = {
+       { AU1200_DSCR_CMD0_UART0_TX, DEV_FLAGS_OUT, 0, 8, 0x11100004, 0, 0 },
+       { AU1200_DSCR_CMD0_UART0_RX, DEV_FLAGS_IN,  0, 8, 0x11100000, 0, 0 },
+       { AU1200_DSCR_CMD0_UART1_TX, DEV_FLAGS_OUT, 0, 8, 0x11200004, 0, 0 },
+       { AU1200_DSCR_CMD0_UART1_RX, DEV_FLAGS_IN,  0, 8, 0x11200000, 0, 0 },
 
-       { DSCR_CMD0_SDMS_TX0, DEV_FLAGS_OUT, 4, 8, 0x10600000, 0, 0 },
-       { DSCR_CMD0_SDMS_RX0, DEV_FLAGS_IN, 4, 8, 0x10600004, 0, 0 },
-       { DSCR_CMD0_SDMS_TX1, DEV_FLAGS_OUT, 4, 8, 0x10680000, 0, 0 },
-       { DSCR_CMD0_SDMS_RX1, DEV_FLAGS_IN, 4, 8, 0x10680004, 0, 0 },
+       { AU1200_DSCR_CMD0_DMA_REQ0, 0, 0, 0, 0x00000000, 0, 0 },
+       { AU1200_DSCR_CMD0_DMA_REQ1, 0, 0, 0, 0x00000000, 0, 0 },
 
-       { DSCR_CMD0_AES_RX, DEV_FLAGS_IN , 4, 32, 0x10300008, 0, 0 },
-       { DSCR_CMD0_AES_TX, DEV_FLAGS_OUT, 4, 32, 0x10300004, 0, 0 },
+       { AU1200_DSCR_CMD0_MAE_BE, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+       { AU1200_DSCR_CMD0_MAE_FE, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+       { AU1200_DSCR_CMD0_MAE_BOTH, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+       { AU1200_DSCR_CMD0_LCD, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
 
-       { DSCR_CMD0_PSC0_TX, DEV_FLAGS_OUT, 0, 16, 0x11a0001c, 0, 0 },
-       { DSCR_CMD0_PSC0_RX, DEV_FLAGS_IN, 0, 16, 0x11a0001c, 0, 0 },
-       { DSCR_CMD0_PSC0_SYNC, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+       { AU1200_DSCR_CMD0_SDMS_TX0, DEV_FLAGS_OUT, 4, 8, 0x10600000, 0, 0 },
+       { AU1200_DSCR_CMD0_SDMS_RX0, DEV_FLAGS_IN,  4, 8, 0x10600004, 0, 0 },
+       { AU1200_DSCR_CMD0_SDMS_TX1, DEV_FLAGS_OUT, 4, 8, 0x10680000, 0, 0 },
+       { AU1200_DSCR_CMD0_SDMS_RX1, DEV_FLAGS_IN,  4, 8, 0x10680004, 0, 0 },
 
-       { DSCR_CMD0_PSC1_TX, DEV_FLAGS_OUT, 0, 16, 0x11b0001c, 0, 0 },
-       { DSCR_CMD0_PSC1_RX, DEV_FLAGS_IN, 0, 16, 0x11b0001c, 0, 0 },
-       { DSCR_CMD0_PSC1_SYNC, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+       { AU1200_DSCR_CMD0_AES_RX, DEV_FLAGS_IN , 4, 32, 0x10300008, 0, 0 },
+       { AU1200_DSCR_CMD0_AES_TX, DEV_FLAGS_OUT, 4, 32, 0x10300004, 0, 0 },
 
-       { DSCR_CMD0_CIM_RXA, DEV_FLAGS_IN, 0, 32, 0x14004020, 0, 0 },
-       { DSCR_CMD0_CIM_RXB, DEV_FLAGS_IN, 0, 32, 0x14004040, 0, 0 },
-       { DSCR_CMD0_CIM_RXC, DEV_FLAGS_IN, 0, 32, 0x14004060, 0, 0 },
-       { DSCR_CMD0_CIM_SYNC, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+       { AU1200_DSCR_CMD0_PSC0_TX,   DEV_FLAGS_OUT, 0, 16, 0x11a0001c, 0, 0 },
+       { AU1200_DSCR_CMD0_PSC0_RX,   DEV_FLAGS_IN,  0, 16, 0x11a0001c, 0, 0 },
+       { AU1200_DSCR_CMD0_PSC0_SYNC, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 
},
+       { AU1200_DSCR_CMD0_PSC1_TX,   DEV_FLAGS_OUT, 0, 16, 0x11b0001c, 0, 0 },
+       { AU1200_DSCR_CMD0_PSC1_RX,   DEV_FLAGS_IN,  0, 16, 0x11b0001c, 0, 0 },
+       { AU1200_DSCR_CMD0_PSC1_SYNC, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 
},
 
-       { DSCR_CMD0_NAND_FLASH, DEV_FLAGS_IN, 0, 0, 0x00000000, 0, 0 },
+       { AU1200_DSCR_CMD0_CIM_RXA,  DEV_FLAGS_IN, 0, 32, 0x14004020, 0, 0 },
+       { AU1200_DSCR_CMD0_CIM_RXB,  DEV_FLAGS_IN, 0, 32, 0x14004040, 0, 0 },
+       { AU1200_DSCR_CMD0_CIM_RXC,  DEV_FLAGS_IN, 0, 32, 0x14004060, 0, 0 },
+       { AU1200_DSCR_CMD0_CIM_SYNC, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
 
-#endif /* CONFIG_SOC_AU1200 */
+       { AU1200_DSCR_CMD0_NAND_FLASH, DEV_FLAGS_IN, 0, 0, 0x00000000, 0, 0 },
 
        { DSCR_CMD0_THROTTLE, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
-       { DSCR_CMD0_ALWAYS, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
-
-       /* Provide 16 user definable device types */
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
-       { ~0, 0, 0, 0, 0, 0, 0 },
+       { DSCR_CMD0_ALWAYS,   DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
 };
 
-#define DBDEV_TAB_SIZE ARRAY_SIZE(dbdev_tab)
-
+/* 32 predefined plus 32 custom */
+#define DBDEV_TAB_SIZE         64
 
 static chan_tab_t *chan_tab_ptr[NUM_DBDMA_CHANS];
 
@@ -1028,38 +1002,43 @@ static struct syscore_ops alchemy_dbdma_syscore_ops = {
        .resume         = alchemy_dbdma_resume,
 };
 
-static int __init au1xxx_dbdma_init(void)
+static int __init dbdma_setup(unsigned int irq, dbdev_tab_t *idtable)
 {
-       int irq_nr, ret;
+       int ret;
+
+       dbdev_tab = kzalloc(sizeof(dbdev_tab_t) * DBDEV_TAB_SIZE, GFP_KERNEL);
+       if (!dbdev_tab)
+               return -ENOMEM;
+
+       memcpy(dbdev_tab, idtable, 32 * sizeof(dbdev_tab_t));
+       for (ret = 32; ret < DBDEV_TAB_SIZE; ret++)
+               dbdev_tab[ret].dev_id = ~0;
 
        dbdma_gptr->ddma_config = 0;
        dbdma_gptr->ddma_throttle = 0;
        dbdma_gptr->ddma_inten = 0xffff;
        au_sync();
 
-       switch (alchemy_get_cputype()) {
-       case ALCHEMY_CPU_AU1550:
-               irq_nr = AU1550_DDMA_INT;
-               break;
-       case ALCHEMY_CPU_AU1200:
-               irq_nr = AU1200_DDMA_INT;
-               break;
-       default:
-               return -ENODEV;
-       }
-
-       ret = request_irq(irq_nr, dbdma_interrupt, IRQF_DISABLED,
-                       "Au1xxx dbdma", (void *)dbdma_gptr);
+       ret = request_irq(irq, dbdma_interrupt, IRQF_DISABLED, "dbdma",
+                         (void *)dbdma_gptr);
        if (ret)
                printk(KERN_ERR "Cannot grab DBDMA interrupt!\n");
        else {
                dbdma_initialized = 1;
-               printk(KERN_INFO "Alchemy DBDMA initialized\n");
                register_syscore_ops(&alchemy_dbdma_syscore_ops);
        }
 
        return ret;
 }
-subsys_initcall(au1xxx_dbdma_init);
 
-#endif /* defined(CONFIG_SOC_AU1550) || defined(CONFIG_SOC_AU1200) */
+static int __init alchemy_dbdma_init(void)
+{
+       switch (alchemy_get_cputype()) {
+       case ALCHEMY_CPU_AU1550:
+               return dbdma_setup(AU1550_DDMA_INT, au1550_dbdev_tab);
+       case ALCHEMY_CPU_AU1200:
+               return dbdma_setup(AU1200_DDMA_INT, au1200_dbdev_tab);
+       }
+       return 0;
+}
+subsys_initcall(alchemy_dbdma_init);
diff --git a/arch/mips/alchemy/common/dma.c b/arch/mips/alchemy/common/dma.c
index 6652a23..9b624e2 100644
--- a/arch/mips/alchemy/common/dma.c
+++ b/arch/mips/alchemy/common/dma.c
@@ -40,8 +40,6 @@
 #include <asm/mach-au1x00/au1000.h>
 #include <asm/mach-au1x00/au1000_dma.h>
 
-#if defined(CONFIG_SOC_AU1000) || defined(CONFIG_SOC_AU1500) || \
-    defined(CONFIG_SOC_AU1100)
 /*
  * A note on resource allocation:
  *
@@ -170,13 +168,13 @@ int request_au1000_dma(int dev_id, const char *dev_str,
        const struct dma_dev *dev;
        int i, ret;
 
-#if defined(CONFIG_SOC_AU1100)
-       if (dev_id < 0 || dev_id >= (DMA_NUM_DEV + DMA_NUM_DEV_BANK2))
-               return -EINVAL;
-#else
-       if (dev_id < 0 || dev_id >= DMA_NUM_DEV)
-               return -EINVAL;
-#endif
+       if (alchemy_get_cputype() == ALCHEMY_CPU_AU1100) {
+               if (dev_id < 0 || dev_id >= (DMA_NUM_DEV + DMA_NUM_DEV_BANK2))
+                       return -EINVAL;
+       } else {
+               if (dev_id < 0 || dev_id >= DMA_NUM_DEV)
+                       return -EINVAL;
+       }
 
        for (i = 0; i < NUM_AU1000_DMA_CHANNELS; i++)
                if (au1000_dma_table[i].dev_id < 0)
@@ -239,30 +237,28 @@ EXPORT_SYMBOL(free_au1000_dma);
 
 static int __init au1000_dma_init(void)
 {
-        int base, i;
-
-        switch (alchemy_get_cputype()) {
-        case ALCHEMY_CPU_AU1000:
-                base = AU1000_DMA_INT_BASE;
-                break;
-        case ALCHEMY_CPU_AU1500:
-                base = AU1500_DMA_INT_BASE;
-                break;
-        case ALCHEMY_CPU_AU1100:
-                base = AU1100_DMA_INT_BASE;
-                break;
-        default:
-                goto out;
-        }
-
-        for (i = 0; i < NUM_AU1000_DMA_CHANNELS; i++)
-                au1000_dma_table[i].irq = base + i;
-
-        printk(KERN_INFO "Alchemy DMA initialized\n");
+       int base, i;
+
+       switch (alchemy_get_cputype()) {
+       case ALCHEMY_CPU_AU1000:
+               base = AU1000_DMA_INT_BASE;
+               break;
+       case ALCHEMY_CPU_AU1500:
+               base = AU1500_DMA_INT_BASE;
+               break;
+       case ALCHEMY_CPU_AU1100:
+               base = AU1100_DMA_INT_BASE;
+               break;
+       default:
+               goto out;
+       }
+
+       for (i = 0; i < NUM_AU1000_DMA_CHANNELS; i++)
+               au1000_dma_table[i].irq = base + i;
+
+       printk(KERN_INFO "Alchemy DMA initialized\n");
 
 out:
-        return 0;
+       return 0;
 }
 arch_initcall(au1000_dma_init);
-
-#endif /* AU1000 AU1500 AU1100 */
diff --git a/arch/mips/alchemy/common/platform.c 
b/arch/mips/alchemy/common/platform.c
index bf1ac41..7eca306 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -263,13 +263,13 @@ static struct resource au1200_mmc0_resources[] = {
                .flags          = IORESOURCE_IRQ,
        },
        [2] = {
-               .start          = DSCR_CMD0_SDMS_TX0,
-               .end            = DSCR_CMD0_SDMS_TX0,
+               .start          = AU1200_DSCR_CMD0_SDMS_TX0,
+               .end            = AU1200_DSCR_CMD0_SDMS_TX0,
                .flags          = IORESOURCE_DMA,
        },
        [3] = {
-               .start          = DSCR_CMD0_SDMS_RX0,
-               .end            = DSCR_CMD0_SDMS_RX0,
+               .start          = AU1200_DSCR_CMD0_SDMS_RX0,
+               .end            = AU1200_DSCR_CMD0_SDMS_RX0,
                .flags          = IORESOURCE_DMA,
        }
 };
@@ -299,13 +299,13 @@ static struct resource au1200_mmc1_resources[] = {
                .flags          = IORESOURCE_IRQ,
        },
        [2] = {
-               .start          = DSCR_CMD0_SDMS_TX1,
-               .end            = DSCR_CMD0_SDMS_TX1,
+               .start          = AU1200_DSCR_CMD0_SDMS_TX1,
+               .end            = AU1200_DSCR_CMD0_SDMS_TX1,
                .flags          = IORESOURCE_DMA,
        },
        [3] = {
-               .start          = DSCR_CMD0_SDMS_RX1,
-               .end            = DSCR_CMD0_SDMS_RX1,
+               .start          = AU1200_DSCR_CMD0_SDMS_RX1,
+               .end            = AU1200_DSCR_CMD0_SDMS_RX1,
                .flags          = IORESOURCE_DMA,
        }
 };
diff --git a/arch/mips/alchemy/devboards/db1200/platform.c 
b/arch/mips/alchemy/devboards/db1200/platform.c
index 6fd070d..1bc16f0 100644
--- a/arch/mips/alchemy/devboards/db1200/platform.c
+++ b/arch/mips/alchemy/devboards/db1200/platform.c
@@ -215,8 +215,8 @@ static struct resource db1200_ide_res[] = {
                .flags  = IORESOURCE_IRQ,
        },
        [2] = {
-               .start  = DSCR_CMD0_DMA_REQ1,
-               .end    = DSCR_CMD0_DMA_REQ1,
+               .start  = AU1200_DSCR_CMD0_DMA_REQ1,
+               .end    = AU1200_DSCR_CMD0_DMA_REQ1,
                .flags  = IORESOURCE_DMA,
        },
 };
@@ -358,13 +358,13 @@ static struct resource au1200_psc0_res[] = {
                .flags  = IORESOURCE_IRQ,
        },
        [2] = {
-               .start  = DSCR_CMD0_PSC0_TX,
-               .end    = DSCR_CMD0_PSC0_TX,
+               .start  = AU1200_DSCR_CMD0_PSC0_TX,
+               .end    = AU1200_DSCR_CMD0_PSC0_TX,
                .flags  = IORESOURCE_DMA,
        },
        [3] = {
-               .start  = DSCR_CMD0_PSC0_RX,
-               .end    = DSCR_CMD0_PSC0_RX,
+               .start  = AU1200_DSCR_CMD0_PSC0_RX,
+               .end    = AU1200_DSCR_CMD0_PSC0_RX,
                .flags  = IORESOURCE_DMA,
        },
 };
@@ -416,13 +416,13 @@ static struct resource au1200_psc1_res[] = {
                .flags  = IORESOURCE_IRQ,
        },
        [2] = {
-               .start  = DSCR_CMD0_PSC1_TX,
-               .end    = DSCR_CMD0_PSC1_TX,
+               .start  = AU1200_DSCR_CMD0_PSC1_TX,
+               .end    = AU1200_DSCR_CMD0_PSC1_TX,
                .flags  = IORESOURCE_DMA,
        },
        [3] = {
-               .start  = DSCR_CMD0_PSC1_RX,
-               .end    = DSCR_CMD0_PSC1_RX,
+               .start  = AU1200_DSCR_CMD0_PSC1_RX,
+               .end    = AU1200_DSCR_CMD0_PSC1_RX,
                .flags  = IORESOURCE_DMA,
        },
 };
diff --git a/arch/mips/alchemy/devboards/pb1200/platform.c 
b/arch/mips/alchemy/devboards/pb1200/platform.c
index 6ac0494..7de4f88 100644
--- a/arch/mips/alchemy/devboards/pb1200/platform.c
+++ b/arch/mips/alchemy/devboards/pb1200/platform.c
@@ -118,8 +118,8 @@ static struct resource ide_resources[] = {
                .flags  = IORESOURCE_IRQ
        },
        [2] = {
-               .start  = DSCR_CMD0_DMA_REQ1,
-               .end    = DSCR_CMD0_DMA_REQ1,
+               .start  = AU1200_DSCR_CMD0_DMA_REQ1,
+               .end    = AU1200_DSCR_CMD0_DMA_REQ1,
                .flags  = IORESOURCE_DMA,
        },
 };
diff --git a/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h 
b/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h
index 2fdacfe..323ce2d 100644
--- a/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h
+++ b/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h
@@ -126,66 +126,62 @@ typedef volatile struct au1xxx_ddma_desc {
 #define SW_STATUS_INUSE        (1 << 0)
 
 /* Command 0 device IDs. */
-#ifdef CONFIG_SOC_AU1550
-#define DSCR_CMD0_UART0_TX     0
-#define DSCR_CMD0_UART0_RX     1
-#define DSCR_CMD0_UART3_TX     2
-#define DSCR_CMD0_UART3_RX     3
-#define DSCR_CMD0_DMA_REQ0     4
-#define DSCR_CMD0_DMA_REQ1     5
-#define DSCR_CMD0_DMA_REQ2     6
-#define DSCR_CMD0_DMA_REQ3     7
-#define DSCR_CMD0_USBDEV_RX0   8
-#define DSCR_CMD0_USBDEV_TX0   9
-#define DSCR_CMD0_USBDEV_TX1   10
-#define DSCR_CMD0_USBDEV_TX2   11
-#define DSCR_CMD0_USBDEV_RX3   12
-#define DSCR_CMD0_USBDEV_RX4   13
-#define DSCR_CMD0_PSC0_TX      14
-#define DSCR_CMD0_PSC0_RX      15
-#define DSCR_CMD0_PSC1_TX      16
-#define DSCR_CMD0_PSC1_RX      17
-#define DSCR_CMD0_PSC2_TX      18
-#define DSCR_CMD0_PSC2_RX      19
-#define DSCR_CMD0_PSC3_TX      20
-#define DSCR_CMD0_PSC3_RX      21
-#define DSCR_CMD0_PCI_WRITE    22
-#define DSCR_CMD0_NAND_FLASH   23
-#define DSCR_CMD0_MAC0_RX      24
-#define DSCR_CMD0_MAC0_TX      25
-#define DSCR_CMD0_MAC1_RX      26
-#define DSCR_CMD0_MAC1_TX      27
-#endif /* CONFIG_SOC_AU1550 */
-
-#ifdef CONFIG_SOC_AU1200
-#define DSCR_CMD0_UART0_TX     0
-#define DSCR_CMD0_UART0_RX     1
-#define DSCR_CMD0_UART1_TX     2
-#define DSCR_CMD0_UART1_RX     3
-#define DSCR_CMD0_DMA_REQ0     4
-#define DSCR_CMD0_DMA_REQ1     5
-#define DSCR_CMD0_MAE_BE       6
-#define DSCR_CMD0_MAE_FE       7
-#define DSCR_CMD0_SDMS_TX0     8
-#define DSCR_CMD0_SDMS_RX0     9
-#define DSCR_CMD0_SDMS_TX1     10
-#define DSCR_CMD0_SDMS_RX1     11
-#define DSCR_CMD0_AES_TX       13
-#define DSCR_CMD0_AES_RX       12
-#define DSCR_CMD0_PSC0_TX      14
-#define DSCR_CMD0_PSC0_RX      15
-#define DSCR_CMD0_PSC1_TX      16
-#define DSCR_CMD0_PSC1_RX      17
-#define DSCR_CMD0_CIM_RXA      18
-#define DSCR_CMD0_CIM_RXB      19
-#define DSCR_CMD0_CIM_RXC      20
-#define DSCR_CMD0_MAE_BOTH     21
-#define DSCR_CMD0_LCD          22
-#define DSCR_CMD0_NAND_FLASH   23
-#define DSCR_CMD0_PSC0_SYNC    24
-#define DSCR_CMD0_PSC1_SYNC    25
-#define DSCR_CMD0_CIM_SYNC     26
-#endif /* CONFIG_SOC_AU1200 */
+#define AU1550_DSCR_CMD0_UART0_TX      0
+#define AU1550_DSCR_CMD0_UART0_RX      1
+#define AU1550_DSCR_CMD0_UART3_TX      2
+#define AU1550_DSCR_CMD0_UART3_RX      3
+#define AU1550_DSCR_CMD0_DMA_REQ0      4
+#define AU1550_DSCR_CMD0_DMA_REQ1      5
+#define AU1550_DSCR_CMD0_DMA_REQ2      6
+#define AU1550_DSCR_CMD0_DMA_REQ3      7
+#define AU1550_DSCR_CMD0_USBDEV_RX0    8
+#define AU1550_DSCR_CMD0_USBDEV_TX0    9
+#define AU1550_DSCR_CMD0_USBDEV_TX1    10
+#define AU1550_DSCR_CMD0_USBDEV_TX2    11
+#define AU1550_DSCR_CMD0_USBDEV_RX3    12
+#define AU1550_DSCR_CMD0_USBDEV_RX4    13
+#define AU1550_DSCR_CMD0_PSC0_TX       14
+#define AU1550_DSCR_CMD0_PSC0_RX       15
+#define AU1550_DSCR_CMD0_PSC1_TX       16
+#define AU1550_DSCR_CMD0_PSC1_RX       17
+#define AU1550_DSCR_CMD0_PSC2_TX       18
+#define AU1550_DSCR_CMD0_PSC2_RX       19
+#define AU1550_DSCR_CMD0_PSC3_TX       20
+#define AU1550_DSCR_CMD0_PSC3_RX       21
+#define AU1550_DSCR_CMD0_PCI_WRITE     22
+#define AU1550_DSCR_CMD0_NAND_FLASH    23
+#define AU1550_DSCR_CMD0_MAC0_RX       24
+#define AU1550_DSCR_CMD0_MAC0_TX       25
+#define AU1550_DSCR_CMD0_MAC1_RX       26
+#define AU1550_DSCR_CMD0_MAC1_TX       27
+
+#define AU1200_DSCR_CMD0_UART0_TX      0
+#define AU1200_DSCR_CMD0_UART0_RX      1
+#define AU1200_DSCR_CMD0_UART1_TX      2
+#define AU1200_DSCR_CMD0_UART1_RX      3
+#define AU1200_DSCR_CMD0_DMA_REQ0      4
+#define AU1200_DSCR_CMD0_DMA_REQ1      5
+#define AU1200_DSCR_CMD0_MAE_BE                6
+#define AU1200_DSCR_CMD0_MAE_FE                7
+#define AU1200_DSCR_CMD0_SDMS_TX0      8
+#define AU1200_DSCR_CMD0_SDMS_RX0      9
+#define AU1200_DSCR_CMD0_SDMS_TX1      10
+#define AU1200_DSCR_CMD0_SDMS_RX1      11
+#define AU1200_DSCR_CMD0_AES_TX                13
+#define AU1200_DSCR_CMD0_AES_RX                12
+#define AU1200_DSCR_CMD0_PSC0_TX       14
+#define AU1200_DSCR_CMD0_PSC0_RX       15
+#define AU1200_DSCR_CMD0_PSC1_TX       16
+#define AU1200_DSCR_CMD0_PSC1_RX       17
+#define AU1200_DSCR_CMD0_CIM_RXA       18
+#define AU1200_DSCR_CMD0_CIM_RXB       19
+#define AU1200_DSCR_CMD0_CIM_RXC       20
+#define AU1200_DSCR_CMD0_MAE_BOTH      21
+#define AU1200_DSCR_CMD0_LCD           22
+#define AU1200_DSCR_CMD0_NAND_FLASH    23
+#define AU1200_DSCR_CMD0_PSC0_SYNC     24
+#define AU1200_DSCR_CMD0_PSC1_SYNC     25
+#define AU1200_DSCR_CMD0_CIM_SYNC      26
 
 #define DSCR_CMD0_THROTTLE     30
 #define DSCR_CMD0_ALWAYS       31
diff --git a/arch/mips/include/asm/mach-db1x00/db1x00.h 
b/arch/mips/include/asm/mach-db1x00/db1x00.h
index 115cc7c..a5affb0 100644
--- a/arch/mips/include/asm/mach-db1x00/db1x00.h
+++ b/arch/mips/include/asm/mach-db1x00/db1x00.h
@@ -31,10 +31,10 @@
 
 #ifdef CONFIG_MIPS_DB1550
 
-#define DBDMA_AC97_TX_CHAN     DSCR_CMD0_PSC1_TX
-#define DBDMA_AC97_RX_CHAN     DSCR_CMD0_PSC1_RX
-#define DBDMA_I2S_TX_CHAN      DSCR_CMD0_PSC3_TX
-#define DBDMA_I2S_RX_CHAN      DSCR_CMD0_PSC3_RX
+#define DBDMA_AC97_TX_CHAN     AU1550_DSCR_CMD0_PSC1_TX
+#define DBDMA_AC97_RX_CHAN     AU1550_DSCR_CMD0_PSC1_RX
+#define DBDMA_I2S_TX_CHAN      AU1550_DSCR_CMD0_PSC3_TX
+#define DBDMA_I2S_RX_CHAN      AU1550_DSCR_CMD0_PSC3_RX
 
 #define SPI_PSC_BASE           AU1550_PSC0_PHYS_ADDR
 #define AC97_PSC_BASE          AU1550_PSC1_PHYS_ADDR
diff --git a/arch/mips/include/asm/mach-pb1x00/pb1200.h 
b/arch/mips/include/asm/mach-pb1x00/pb1200.h
index 56865e9..374416a 100644
--- a/arch/mips/include/asm/mach-pb1x00/pb1200.h
+++ b/arch/mips/include/asm/mach-pb1x00/pb1200.h
@@ -28,10 +28,10 @@
 #include <asm/mach-au1x00/au1000.h>
 #include <asm/mach-au1x00/au1xxx_psc.h>
 
-#define DBDMA_AC97_TX_CHAN     DSCR_CMD0_PSC1_TX
-#define DBDMA_AC97_RX_CHAN     DSCR_CMD0_PSC1_RX
-#define DBDMA_I2S_TX_CHAN      DSCR_CMD0_PSC1_TX
-#define DBDMA_I2S_RX_CHAN      DSCR_CMD0_PSC1_RX
+#define DBDMA_AC97_TX_CHAN     AU1200_DSCR_CMD0_PSC1_TX
+#define DBDMA_AC97_RX_CHAN     AU1200_DSCR_CMD0_PSC1_RX
+#define DBDMA_I2S_TX_CHAN      AU1200_DSCR_CMD0_PSC1_TX
+#define DBDMA_I2S_RX_CHAN      AU1200_DSCR_CMD0_PSC1_RX
 
 /*
  * SPI and SMB are muxed on the Pb1200 board.
diff --git a/arch/mips/include/asm/mach-pb1x00/pb1550.h 
b/arch/mips/include/asm/mach-pb1x00/pb1550.h
index 0b0f462..443b88a 100644
--- a/arch/mips/include/asm/mach-pb1x00/pb1550.h
+++ b/arch/mips/include/asm/mach-pb1x00/pb1550.h
@@ -30,10 +30,10 @@
 #include <linux/types.h>
 #include <asm/mach-au1x00/au1xxx_psc.h>
 
-#define DBDMA_AC97_TX_CHAN     DSCR_CMD0_PSC1_TX
-#define DBDMA_AC97_RX_CHAN     DSCR_CMD0_PSC1_RX
-#define DBDMA_I2S_TX_CHAN      DSCR_CMD0_PSC3_TX
-#define DBDMA_I2S_RX_CHAN      DSCR_CMD0_PSC3_RX
+#define DBDMA_AC97_TX_CHAN     AU1550_DSCR_CMD0_PSC1_TX
+#define DBDMA_AC97_RX_CHAN     AU1550_DSCR_CMD0_PSC1_RX
+#define DBDMA_I2S_TX_CHAN      AU1550_DSCR_CMD0_PSC3_TX
+#define DBDMA_I2S_RX_CHAN      AU1550_DSCR_CMD0_PSC3_RX
 
 #define SPI_PSC_BASE           AU1550_PSC0_PHYS_ADDR
 #define AC97_PSC_BASE          AU1550_PSC1_PHYS_ADDR
-- 
1.7.6


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