diff options
Diffstat (limited to 'drivers/usb/musb/blackfin_usb.c')
| -rw-r--r-- | drivers/usb/musb/blackfin_usb.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/drivers/usb/musb/blackfin_usb.c b/drivers/usb/musb/blackfin_usb.c deleted file mode 100644 index 65fff887d3..0000000000 --- a/drivers/usb/musb/blackfin_usb.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * Blackfin MUSB HCD (Host Controller Driver) for u-boot - * - * Copyright (c) 2008-2009 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -#include <common.h> - -#include <usb.h> - -#include <asm/blackfin.h> -#include <asm/clock.h> -#include <asm/mach-common/bits/usb.h> - -#include "musb_core.h" - -#ifndef CONFIG_USB_BLACKFIN_CLKIN -#define CONFIG_USB_BLACKFIN_CLKIN 24 -#endif - -/* MUSB platform configuration */ -struct musb_config musb_cfg = { - .regs = (struct musb_regs *)USB_FADDR, - .timeout = 0x3FFFFFF, - .musb_speed = 0, -}; - -/* - * This function read or write data to endpoint fifo - * Blackfin use DMA polling method to avoid buffer alignment issues - * - * ep - Endpoint number - * length - Number of bytes to write to FIFO - * fifo_data - Pointer to data buffer to be read/write - * is_write - Flag for read or write - */ -void rw_fifo(u8 ep, u32 length, void *fifo_data, int is_write) -{ - struct bfin_musb_dma_regs *regs; - u32 val = (u32)fifo_data; - - blackfin_dcache_flush_invalidate_range(fifo_data, fifo_data + length); - - regs = (void *)USB_DMA_INTERRUPT; - regs += ep; - - /* Setup DMA address register */ - bfin_write16(®s->addr_low, val); - SSYNC(); - - bfin_write16(®s->addr_high, val >> 16); - SSYNC(); - - /* Setup DMA count register */ - bfin_write16(®s->count_low, length); - bfin_write16(®s->count_high, 0); - SSYNC(); - - /* Enable the DMA */ - val = (ep << 4) | DMA_ENA | INT_ENA; - if (is_write) - val |= DIRECTION; - bfin_write16(®s->control, val); - SSYNC(); - - /* Wait for compelete */ - while (!(bfin_read_USB_DMA_INTERRUPT() & (1 << ep))) - continue; - - /* acknowledge dma interrupt */ - bfin_write_USB_DMA_INTERRUPT(1 << ep); - SSYNC(); - - /* Reset DMA */ - bfin_write16(®s->control, 0); - SSYNC(); -} - -void write_fifo(u8 ep, u32 length, void *fifo_data) -{ - rw_fifo(ep, length, fifo_data, 1); -} - -void read_fifo(u8 ep, u32 length, void *fifo_data) -{ - rw_fifo(ep, length, fifo_data, 0); -} - - -/* - * CPU and board-specific MUSB initializations. Aliased function - * signals caller to move on. - */ -static void __def_musb_init(void) -{ -} -void board_musb_init(void) __attribute__((weak, alias("__def_musb_init"))); - -static void bfin_anomaly_init(void) -{ - u32 revid; - - if (!ANOMALY_05000346 && !ANOMALY_05000347) - return; - - revid = bfin_revid(); - -#ifdef __ADSPBF54x__ - if (revid > 0) - return; -#endif -#ifdef __ADSPBF52x__ - if (ANOMALY_BF526 && revid > 0) - return; - if (ANOMALY_BF527 && revid > 1) - return; -#endif - - if (ANOMALY_05000346) { - bfin_write_USB_APHY_CALIB(ANOMALY_05000346_value); - SSYNC(); - } - - if (ANOMALY_05000347) { - bfin_write_USB_APHY_CNTRL(0x0); - SSYNC(); - } -} - -int musb_platform_init(void) -{ - /* board specific initialization */ - board_musb_init(); - - bfin_anomaly_init(); - - /* Configure PLL oscillator register */ - bfin_write_USB_PLLOSC_CTRL(0x3080 | - ((480 / CONFIG_USB_BLACKFIN_CLKIN) << 1)); - SSYNC(); - - bfin_write_USB_SRP_CLKDIV((get_sclk()/1000) / 32 - 1); - SSYNC(); - - bfin_write_USB_EP_NI0_RXMAXP(64); - SSYNC(); - - bfin_write_USB_EP_NI0_TXMAXP(64); - SSYNC(); - - /* Route INTRUSB/INTR_RX/INTR_TX to USB_INT0*/ - bfin_write_USB_GLOBINTR(0x7); - SSYNC(); - - bfin_write_USB_GLOBAL_CTL(GLOBAL_ENA | EP1_TX_ENA | EP2_TX_ENA | - EP3_TX_ENA | EP4_TX_ENA | EP5_TX_ENA | - EP6_TX_ENA | EP7_TX_ENA | EP1_RX_ENA | - EP2_RX_ENA | EP3_RX_ENA | EP4_RX_ENA | - EP5_RX_ENA | EP6_RX_ENA | EP7_RX_ENA); - SSYNC(); - - return 0; -} - -/* - * This function performs Blackfin platform specific deinitialization for usb. -*/ -void musb_platform_deinit(void) -{ -} |