diff options
Diffstat (limited to 'drivers/dma/pch_dma.c')
| -rw-r--r-- | drivers/dma/pch_dma.c | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c index 92b679024fed..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 @@ -259,11 +260,6 @@ static void pdc_dostart(struct pch_dma_chan *pd_chan, struct pch_dma_desc* desc) return; } - channel_writel(pd_chan, DEV_ADDR, desc->regs.dev_addr); - channel_writel(pd_chan, MEM_ADDR, desc->regs.mem_addr); - channel_writel(pd_chan, SIZE, desc->regs.size); - channel_writel(pd_chan, NEXT, desc->regs.next); - dev_dbg(chan2dev(&pd_chan->chan), "chan %d -> dev_addr: %x\n", pd_chan->chan.chan_id, desc->regs.dev_addr); dev_dbg(chan2dev(&pd_chan->chan), "chan %d -> mem_addr: %x\n", @@ -273,10 +269,16 @@ static void pdc_dostart(struct pch_dma_chan *pd_chan, struct pch_dma_desc* desc) dev_dbg(chan2dev(&pd_chan->chan), "chan %d -> next: %x\n", pd_chan->chan.chan_id, desc->regs.next); - if (list_empty(&desc->tx_list)) + if (list_empty(&desc->tx_list)) { + channel_writel(pd_chan, DEV_ADDR, desc->regs.dev_addr); + channel_writel(pd_chan, MEM_ADDR, desc->regs.mem_addr); + channel_writel(pd_chan, SIZE, desc->regs.size); + channel_writel(pd_chan, NEXT, desc->regs.next); pdc_set_mode(&pd_chan->chan, DMA_CTL0_ONESHOT); - else + } else { + channel_writel(pd_chan, NEXT, desc->txd.phys); pdc_set_mode(&pd_chan->chan, DMA_CTL0_SG); + } val = dma_readl(pd, CTL2); val |= 1 << (DMA_CTL2_START_SHIFT_BITS + pd_chan->chan.chan_id); @@ -920,12 +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, }, }; @@ -953,6 +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"); |