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>

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 6ee2359..1b61d3a 100644 (file)
--- 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 c064c89..1c38418 100644 (file)
--- 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");