pch_dma: support new device ML7213 IOH

Support new device OKI SEMICONDUCTOR's ML7213 IOH(Input/Output Hub) which is for
IVI(In-Vehicle Infotainment) use.
The ML7213 is companion chip for Intel Atom E6xx series.
The ML7213 is completely compatible for Intel EG20T PCH.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

2 files changed, 21 insertions, 7 deletions

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 6ee23592700a..1b61d3aa2962 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -200,11 +200,16 @@ config PL330_DMA
           platform_data for a dma-pl330 device.
 
 config PCH_DMA
-        tristate "Topcliff (Intel EG20T) PCH DMA support"
+        tristate "Intel EG20T PCH / OKI SEMICONDUCTOR ML7213 IOH DMA support"
         depends on PCI && X86
         select DMA_ENGINE
         help
-          Enable support for the Topcliff (Intel EG20T) PCH DMA engine.
+          Enable support for Intel EG20T PCH DMA engine.
+
+          This driver also can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/
+          Output Hub) which is for IVI(In-Vehicle Infotainment) use.
+          ML7213 is companion chip for Intel Atom E6xx series.
+          ML7213 is completely compatible for Intel EG20T PCH.
 
 config IMX_SDMA
         tristate "i.MX SDMA support"
diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c
index c064c89420d0..1c38418ae61f 100644
--- a/drivers/dma/pch_dma.c
+++ b/drivers/dma/pch_dma.c
@@ -1,6 +1,7 @@
 /*
  * Topcliff PCH DMA controller driver
  * Copyright (c) 2010 Intel Corporation
+ * Copyright (C) 2011 OKI SEMICONDUCTOR CO., LTD.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -921,12 +922,19 @@ static void __devexit pch_dma_remove(struct pci_dev *pdev)
 }
 
 /* PCI Device ID of DMA device */
-#define PCI_DEVICE_ID_PCH_DMA_8CH        0x8810
-#define PCI_DEVICE_ID_PCH_DMA_4CH        0x8815
+#define PCI_VENDOR_ID_ROHM             0x10DB
+#define PCI_DEVICE_ID_EG20T_PCH_DMA_8CH        0x8810
+#define PCI_DEVICE_ID_EG20T_PCH_DMA_4CH        0x8815
+#define PCI_DEVICE_ID_ML7213_DMA1_8CH   0x8026
+#define PCI_DEVICE_ID_ML7213_DMA2_8CH   0x802B
+#define PCI_DEVICE_ID_ML7213_DMA3_4CH   0x8034
 
 static const struct pci_device_id pch_dma_id_table[] = {
-        { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_PCH_DMA_8CH), 8 },
-        { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_PCH_DMA_4CH), 4 },
+        { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_EG20T_PCH_DMA_8CH), 8 },
+        { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_EG20T_PCH_DMA_4CH), 4 },
+        { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ML7213_DMA1_8CH), 8}, /* UART Video */
+        { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ML7213_DMA2_8CH), 8}, /* PCMIF SPI */
+        { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ML7213_DMA3_4CH), 4}, /* FPGA */
         { 0, },
 };
 
@@ -954,6 +962,7 @@ static void __exit pch_dma_exit(void)
 module_init(pch_dma_init);
 module_exit(pch_dma_exit);
 
-MODULE_DESCRIPTION("Topcliff PCH DMA controller driver");
+MODULE_DESCRIPTION("Intel EG20T PCH / OKI SEMICONDUCTOR ML7213 IOH "
+                   "DMA controller driver");
 MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>");
 MODULE_LICENSE("GPL v2");