diff options
Diffstat (limited to 'drivers/usb/musb/blackfin.h')
| -rw-r--r-- | drivers/usb/musb/blackfin.h | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/drivers/usb/musb/blackfin.h b/drivers/usb/musb/blackfin.h deleted file mode 100644 index 5b149915b0f8..000000000000 --- a/drivers/usb/musb/blackfin.h +++ /dev/null @@ -1,81 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (C) 2007 by Analog Devices, Inc. - */ - -#ifndef __MUSB_BLACKFIN_H__ -#define __MUSB_BLACKFIN_H__ - -/* - * Blackfin specific definitions - */ - -/* Anomalies notes: - * - * 05000450 - USB DMA Mode 1 Short Packet Data Corruption: - * MUSB driver is designed to transfer buffer of N * maxpacket size - * in DMA mode 1 and leave the rest of the data to the next - * transfer in DMA mode 0, so we never transmit a short packet in - * DMA mode 1. - * - * 05000463 - This anomaly doesn't affect this driver since it - * never uses L1 or L2 memory as data destination. - * - * 05000464 - This anomaly doesn't affect this driver since it - * never uses L1 or L2 memory as data source. - * - * 05000465 - The anomaly can be seen when SCLK is over 100 MHz, and there is - * no way to workaround for bulk endpoints. Since the wMaxPackSize - * of bulk is less than or equal to 512, while the fifo size of - * endpoint 5, 6, 7 is 1024, the double buffer mode is enabled - * automatically when these endpoints are used for bulk OUT. - * - * 05000466 - This anomaly doesn't affect this driver since it never mixes - * concurrent DMA and core accesses to the TX endpoint FIFOs. - * - * 05000467 - The workaround for this anomaly will introduce another - * anomaly - 05000465. - */ - -/* The Mentor USB DMA engine on BF52x (silicon v0.0 and v0.1) seems to be - * unstable in host mode. This may be caused by Anomaly 05000380. After - * digging out the root cause, we will change this number accordingly. - * So, need to either use silicon v0.2+ or disable DMA mode in MUSB. - */ -#if ANOMALY_05000380 && defined(CONFIG_BF52x) && \ - !defined(CONFIG_MUSB_PIO_ONLY) -# error "Please use PIO mode in MUSB driver on bf52x chip v0.0 and v0.1" -#endif - -#undef DUMP_FIFO_DATA -#ifdef DUMP_FIFO_DATA -static void dump_fifo_data(u8 *buf, u16 len) -{ - u8 *tmp = buf; - int i; - - for (i = 0; i < len; i++) { - if (!(i % 16) && i) - pr_debug("\n"); - pr_debug("%02x ", *tmp++); - } - pr_debug("\n"); -} -#else -#define dump_fifo_data(buf, len) do {} while (0) -#endif - - -#define USB_DMA_BASE USB_DMA_INTERRUPT -#define USB_DMAx_CTRL 0x04 -#define USB_DMAx_ADDR_LOW 0x08 -#define USB_DMAx_ADDR_HIGH 0x0C -#define USB_DMAx_COUNT_LOW 0x10 -#define USB_DMAx_COUNT_HIGH 0x14 - -#define USB_DMA_REG(ep, reg) (USB_DMA_BASE + 0x20 * ep + reg) - -/* Almost 1 second */ -#define TIMER_DELAY (1 * HZ) - -#endif /* __MUSB_BLACKFIN_H__ */ |