diff options
Diffstat (limited to 'drivers/mtd/nand/gpmi-nfc/gpmi-nfc-mil.c')
| -rw-r--r-- | drivers/mtd/nand/gpmi-nfc/gpmi-nfc-mil.c | 41 |
1 files changed, 5 insertions, 36 deletions
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-mil.c b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-mil.c index 50ba771853a4..34505b8e6546 100644 --- a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-mil.c +++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-mil.c @@ -172,8 +172,8 @@ static int mil_incoming_buffer_dma_begin(struct gpmi_nfc_data *this, * If we can, we want to use the caller's buffer directly for DMA. Check * if the system will let us map them. */ - if (map_io_buffers && virt_addr_valid(destination) && - !((int)destination & 0x3) && 0) + + if (map_io_buffers && virt_addr_valid(destination)) destination_phys = dma_map_single(dev, (void *) destination, length, DMA_FROM_DEVICE); @@ -385,7 +385,6 @@ static void mil_select_chip(struct mtd_info *mtd, int chip) gpmi_nfc_add_event("< mil_select_chip", -1); } else if ((mil->current_chip >= 0) && (chip < 0)) { gpmi_nfc_add_event("> mil_select_chip", 1); - gpmi_nfc_add_event("> not disable clk", 1); clk_disable(clock); nfc->end(this); gpmi_nfc_stop_event_trace("< mil_select_chip"); @@ -422,6 +421,7 @@ static void mil_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) gpmi_nfc_add_event("> mil_read_buf", 1); /* Set up DMA. */ + error = mil_incoming_buffer_dma_begin(this, buf, len, mil->payload_virt, mil->payload_phys, nfc_geo->payload_size_in_bytes, @@ -1413,12 +1413,6 @@ static int mil_set_geometry(struct gpmi_nfc_data *this) struct nfc_geometry *nfc_geo = &this->nfc_geometry; struct mil *mil = &this->mil; - - /* Free the memory for read ID case */ - if (mil->page_buffer_virt && virt_addr_valid(mil->page_buffer_virt)) - dma_free_coherent(dev, nfc_geo->payload_size_in_bytes, - mil->page_buffer_virt, mil->page_buffer_phys); - /* Set up the various layers of geometry, in this specific order. */ if (mil_set_physical_geometry(this)) @@ -2505,27 +2499,8 @@ int gpmi_nfc_mil_init(struct gpmi_nfc_data *this) dma_alloc_coherent(dev, MIL_COMMAND_BUFFER_SIZE, &mil->cmd_phys, GFP_DMA); - if (!mil->cmd_virt) { - error = -ENOMEM; + if (!mil->cmd_virt) goto exit_cmd_allocation; - } - - - /* Allocate buf read ID case */ - this->nfc_geometry.payload_size_in_bytes = 1024; - mil->page_buffer_virt = - dma_alloc_coherent(dev, - this->nfc_geometry.payload_size_in_bytes, - &mil->page_buffer_phys, GFP_DMA); - - if (!mil->page_buffer_virt) { - error = -ENOMEM; - goto exit_buf_allocation; - } - - /* Slice up the page buffer. */ - mil->payload_virt = mil->page_buffer_virt; - mil->payload_phys = mil->page_buffer_phys; /* * Ask the NAND Flash system to scan for chips. @@ -2574,14 +2549,8 @@ int gpmi_nfc_mil_init(struct gpmi_nfc_data *this) exit_partitions: nand_release(&mil->mtd); exit_nand_scan: - dma_free_coherent(dev, - this->nfc_geometry.payload_size_in_bytes, - mil->page_buffer_virt, mil->page_buffer_phys); - mil->page_buffer_virt = 0; - mil->page_buffer_phys = ~0; -exit_buf_allocation: dma_free_coherent(dev, MIL_COMMAND_BUFFER_SIZE, - mil->cmd_virt, mil->cmd_phys); + mil->cmd_virt, mil->cmd_phys); mil->cmd_virt = 0; mil->cmd_phys = ~0; exit_cmd_allocation: |