iop3xx: surface the iop3xx DMA and AAU units to the iop-adma driver

Adds the platform device definitions and the architecture specific support
routines (i.e. register initialization and descriptor formats) for the
iop-adma driver.

Changelog:
* add support for > 1k zero sum buffer sizes
* added dma/aau platform devices to iq80321 and iq80332 setup
* fixed the calculation in iop_desc_is_aligned
* support xor buffer sizes larger than 16MB
* fix places where software descriptors are assumed to be contiguous, only
  hardware descriptors are contiguous for up to a PAGE_SIZE buffer size
* convert to async_tx
* add interrupt support
* add platform devices for 80219 boards
* do not call platform register macros in driver code
* remove switch() statements for compatible register offsets/layouts
* change over to bitmap based capabilities
* remove unnecessary ARM assembly statement
* checkpatch.pl fixes
* gpl v2 only correction
* phys move to dma_async_tx_descriptor

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

4 files changed, 12 insertions, 0 deletions

diff --git a/arch/arm/mach-iop32x/glantank.c b/arch/arm/mach-iop32x/glantank.c
index 5776fd884115..2b086ab2668c 100644
--- a/arch/arm/mach-iop32x/glantank.c
+++ b/arch/arm/mach-iop32x/glantank.c
@@ -180,6 +180,8 @@ static void __init glantank_init_machine(void)
         platform_device_register(&iop3xx_i2c1_device);
         platform_device_register(&glantank_flash_device);
         platform_device_register(&glantank_serial_device);
+        platform_device_register(&iop3xx_dma_0_channel);
+        platform_device_register(&iop3xx_dma_1_channel);
 
         pm_power_off = glantank_power_off;
 }
diff --git a/arch/arm/mach-iop32x/iq31244.c b/arch/arm/mach-iop32x/iq31244.c
index d4eefbea1fe6..98cfa1cd6bdb 100644
--- a/arch/arm/mach-iop32x/iq31244.c
+++ b/arch/arm/mach-iop32x/iq31244.c
@@ -298,9 +298,14 @@ static void __init iq31244_init_machine(void)
         platform_device_register(&iop3xx_i2c1_device);
         platform_device_register(&iq31244_flash_device);
         platform_device_register(&iq31244_serial_device);
+        platform_device_register(&iop3xx_dma_0_channel);
+        platform_device_register(&iop3xx_dma_1_channel);
 
         if (is_ep80219())
                 pm_power_off = ep80219_power_off;
+
+        if (!is_80219())
+                platform_device_register(&iop3xx_aau_channel);
 }
 
 static int __init force_ep80219_setup(char *str)
diff --git a/arch/arm/mach-iop32x/iq80321.c b/arch/arm/mach-iop32x/iq80321.c
index 8d9f49164a84..18ad29f213b2 100644
--- a/arch/arm/mach-iop32x/iq80321.c
+++ b/arch/arm/mach-iop32x/iq80321.c
@@ -181,6 +181,9 @@ static void __init iq80321_init_machine(void)
         platform_device_register(&iop3xx_i2c1_device);
         platform_device_register(&iq80321_flash_device);
         platform_device_register(&iq80321_serial_device);
+        platform_device_register(&iop3xx_dma_0_channel);
+        platform_device_register(&iop3xx_dma_1_channel);
+        platform_device_register(&iop3xx_aau_channel);
 }
 
 MACHINE_START(IQ80321, "Intel IQ80321")
diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c
index d55005d64781..390a97d39e5a 100644
--- a/arch/arm/mach-iop32x/n2100.c
+++ b/arch/arm/mach-iop32x/n2100.c
@@ -245,6 +245,8 @@ static void __init n2100_init_machine(void)
         platform_device_register(&iop3xx_i2c0_device);
         platform_device_register(&n2100_flash_device);
         platform_device_register(&n2100_serial_device);
+        platform_device_register(&iop3xx_dma_0_channel);
+        platform_device_register(&iop3xx_dma_1_channel);
 
         pm_power_off = n2100_power_off;