--- /dev/null
+/*
+ * 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/mach-common/bits/usb.h>
+
+#include "musb_core.h"
+
+/* 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")));
+
+int musb_platform_init(void)
+{
+ /* board specific initialization */
+ board_musb_init();
+
+ if (ANOMALY_05000346) {
+ bfin_write_USB_APHY_CALIB(ANOMALY_05000346_value);
+ SSYNC();
+ }
+
+ if (ANOMALY_05000347) {
+ bfin_write_USB_APHY_CNTRL(0x0);
+ SSYNC();
+ }
+
+ /* Configure PLL oscillator register */
+ bfin_write_USB_PLLOSC_CTRL(0x30a8);
+ 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)
+{
+}
--- /dev/null
+/*
+ * USB Masks
+ */
+
+#ifndef __BFIN_PERIPHERAL_USB__
+#define __BFIN_PERIPHERAL_USB__
+
+/* Bit masks for USB_FADDR */
+
+#define FUNCTION_ADDRESS 0x7f /* Function address */
+
+/* Bit masks for USB_POWER */
+
+#define ENABLE_SUSPENDM 0x1 /* enable SuspendM output */
+#define SUSPEND_MODE 0x2 /* Suspend Mode indicator */
+#define RESUME_MODE 0x4 /* DMA Mode */
+#define RESET 0x8 /* Reset indicator */
+#define HS_MODE 0x10 /* High Speed mode indicator */
+#define HS_ENABLE 0x20 /* high Speed Enable */
+#define SOFT_CONN 0x40 /* Soft connect */
+#define ISO_UPDATE 0x80 /* Isochronous update */
+
+/* Bit masks for USB_INTRTX */
+
+#define EP0_TX 0x1 /* Tx Endpoint 0 interrupt */
+#define EP1_TX 0x2 /* Tx Endpoint 1 interrupt */
+#define EP2_TX 0x4 /* Tx Endpoint 2 interrupt */
+#define EP3_TX 0x8 /* Tx Endpoint 3 interrupt */
+#define EP4_TX 0x10 /* Tx Endpoint 4 interrupt */
+#define EP5_TX 0x20 /* Tx Endpoint 5 interrupt */
+#define EP6_TX 0x40 /* Tx Endpoint 6 interrupt */
+#define EP7_TX 0x80 /* Tx Endpoint 7 interrupt */
+
+/* Bit masks for USB_INTRRX */
+
+#define EP1_RX 0x2 /* Rx Endpoint 1 interrupt */
+#define EP2_RX 0x4 /* Rx Endpoint 2 interrupt */
+#define EP3_RX 0x8 /* Rx Endpoint 3 interrupt */
+#define EP4_RX 0x10 /* Rx Endpoint 4 interrupt */
+#define EP5_RX 0x20 /* Rx Endpoint 5 interrupt */
+#define EP6_RX 0x40 /* Rx Endpoint 6 interrupt */
+#define EP7_RX 0x80 /* Rx Endpoint 7 interrupt */
+
+/* Bit masks for USB_INTRTXE */
+
+#define EP0_TX_E 0x1 /* Endpoint 0 interrupt Enable */
+#define EP1_TX_E 0x2 /* Tx Endpoint 1 interrupt enable */
+#define EP2_TX_E 0x4 /* Tx Endpoint 2 interrupt enable */
+#define EP3_TX_E 0x8 /* Tx Endpoint 3 interrupt enable */
+#define EP4_TX_E 0x10 /* Tx Endpoint 4 interrupt enable */
+#define EP5_TX_E 0x20 /* Tx Endpoint 5 interrupt enable */
+#define EP6_TX_E 0x40 /* Tx Endpoint 6 interrupt enable */
+#define EP7_TX_E 0x80 /* Tx Endpoint 7 interrupt enable */
+
+/* Bit masks for USB_INTRRXE */
+
+#define EP1_RX_E 0x02 /* Rx Endpoint 1 interrupt enable */
+#define EP2_RX_E 0x04 /* Rx Endpoint 2 interrupt enable */
+#define EP3_RX_E 0x08 /* Rx Endpoint 3 interrupt enable */
+#define EP4_RX_E 0x10 /* Rx Endpoint 4 interrupt enable */
+#define EP5_RX_E 0x20 /* Rx Endpoint 5 interrupt enable */
+#define EP6_RX_E 0x40 /* Rx Endpoint 6 interrupt enable */
+#define EP7_RX_E 0x80 /* Rx Endpoint 7 interrupt enable */
+
+/* Bit masks for USB_INTRUSB */
+
+#define SUSPEND_B 0x01 /* Suspend indicator */
+#define RESUME_B 0x02 /* Resume indicator */
+#define RESET_OR_BABLE_B 0x04 /* Reset/babble indicator */
+#define SOF_B 0x08 /* Start of frame */
+#define CONN_B 0x10 /* Connection indicator */
+#define DISCON_B 0x20 /* Disconnect indicator */
+#define SESSION_REQ_B 0x40 /* Session Request */
+#define VBUS_ERROR_B 0x80 /* Vbus threshold indicator */
+
+/* Bit masks for USB_INTRUSBE */
+
+#define SUSPEND_BE 0x01 /* Suspend indicator int enable */
+#define RESUME_BE 0x02 /* Resume indicator int enable */
+#define RESET_OR_BABLE_BE 0x04 /* Reset/babble indicator int enable */
+#define SOF_BE 0x08 /* Start of frame int enable */
+#define CONN_BE 0x10 /* Connection indicator int enable */
+#define DISCON_BE 0x20 /* Disconnect indicator int enable */
+#define SESSION_REQ_BE 0x40 /* Session Request int enable */
+#define VBUS_ERROR_BE 0x80 /* Vbus threshold indicator int enable */
+
+/* Bit masks for USB_FRAME */
+
+#define FRAME_NUMBER 0x7ff /* Frame number */
+
+/* Bit masks for USB_INDEX */
+
+#define SELECTED_ENDPOINT 0xf /* selected endpoint */
+
+/* Bit masks for USB_GLOBAL_CTL */
+
+#define GLOBAL_ENA 0x0001 /* enables USB module */
+#define EP1_TX_ENA 0x0002 /* Transmit endpoint 1 enable */
+#define EP2_TX_ENA 0x0004 /* Transmit endpoint 2 enable */
+#define EP3_TX_ENA 0x0008 /* Transmit endpoint 3 enable */
+#define EP4_TX_ENA 0x0010 /* Transmit endpoint 4 enable */
+#define EP5_TX_ENA 0x0020 /* Transmit endpoint 5 enable */
+#define EP6_TX_ENA 0x0040 /* Transmit endpoint 6 enable */
+#define EP7_TX_ENA 0x0080 /* Transmit endpoint 7 enable */
+#define EP1_RX_ENA 0x0100 /* Receive endpoint 1 enable */
+#define EP2_RX_ENA 0x0200 /* Receive endpoint 2 enable */
+#define EP3_RX_ENA 0x0400 /* Receive endpoint 3 enable */
+#define EP4_RX_ENA 0x0800 /* Receive endpoint 4 enable */
+#define EP5_RX_ENA 0x1000 /* Receive endpoint 5 enable */
+#define EP6_RX_ENA 0x2000 /* Receive endpoint 6 enable */
+#define EP7_RX_ENA 0x4000 /* Receive endpoint 7 enable */
+
+/* Bit masks for USB_OTG_DEV_CTL */
+
+#define SESSION 0x1 /* session indicator */
+#define HOST_REQ 0x2 /* Host negotiation request */
+#define HOST_MODE 0x4 /* indicates USBDRC is a host */
+#define VBUS0 0x8 /* Vbus level indicator[0] */
+#define VBUS1 0x10 /* Vbus level indicator[1] */
+#define LSDEV 0x20 /* Low-speed indicator */
+#define FSDEV 0x40 /* Full or High-speed indicator */
+#define B_DEVICE 0x80 /* A' or 'B' device indicator */
+
+/* Bit masks for USB_OTG_VBUS_IRQ */
+
+#define DRIVE_VBUS_ON 0x1 /* indicator to drive VBUS control circuit */
+#define DRIVE_VBUS_OFF 0x2 /* indicator to shut off charge pump */
+#define CHRG_VBUS_START 0x4 /* indicator for external circuit to start charging VBUS */
+#define CHRG_VBUS_END 0x8 /* indicator for external circuit to end charging VBUS */
+#define DISCHRG_VBUS_START 0x10 /* indicator to start discharging VBUS */
+#define DISCHRG_VBUS_END 0x20 /* indicator to stop discharging VBUS */
+
+/* Bit masks for USB_OTG_VBUS_MASK */
+
+#define DRIVE_VBUS_ON_ENA 0x01 /* enable DRIVE_VBUS_ON interrupt */
+#define DRIVE_VBUS_OFF_ENA 0x02 /* enable DRIVE_VBUS_OFF interrupt */
+#define CHRG_VBUS_START_ENA 0x04 /* enable CHRG_VBUS_START interrupt */
+#define CHRG_VBUS_END_ENA 0x08 /* enable CHRG_VBUS_END interrupt */
+#define DISCHRG_VBUS_START_ENA 0x10 /* enable DISCHRG_VBUS_START interrupt */
+#define DISCHRG_VBUS_END_ENA 0x20 /* enable DISCHRG_VBUS_END interrupt */
+
+/* Bit masks for USB_CSR0 */
+
+#define RXPKTRDY 0x1 /* data packet receive indicator */
+#define TXPKTRDY 0x2 /* data packet in FIFO indicator */
+#define STALL_SENT 0x4 /* STALL handshake sent */
+#define DATAEND 0x8 /* Data end indicator */
+#define SETUPEND 0x10 /* Setup end */
+#define SENDSTALL 0x20 /* Send STALL handshake */
+#define SERVICED_RXPKTRDY 0x40 /* used to clear the RxPktRdy bit */
+#define SERVICED_SETUPEND 0x80 /* used to clear the SetupEnd bit */
+#define FLUSHFIFO 0x100 /* flush endpoint FIFO */
+#define STALL_RECEIVED_H 0x4 /* STALL handshake received host mode */
+#define SETUPPKT_H 0x8 /* send Setup token host mode */
+#define ERROR_H 0x10 /* timeout error indicator host mode */
+#define REQPKT_H 0x20 /* Request an IN transaction host mode */
+#define STATUSPKT_H 0x40 /* Status stage transaction host mode */
+#define NAK_TIMEOUT_H 0x80 /* EP0 halted after a NAK host mode */
+
+/* Bit masks for USB_COUNT0 */
+
+#define EP0_RX_COUNT 0x7f /* number of received bytes in EP0 FIFO */
+
+/* Bit masks for USB_NAKLIMIT0 */
+
+#define EP0_NAK_LIMIT 0x1f /* frames/micro frames count after which EP0 timeouts */
+
+/* Bit masks for USB_TX_MAX_PACKET */
+
+#define MAX_PACKET_SIZE_T 0x7ff /* maximum data pay load in a frame */
+
+/* Bit masks for USB_RX_MAX_PACKET */
+
+#define MAX_PACKET_SIZE_R 0x7ff /* maximum data pay load in a frame */
+
+/* Bit masks for USB_TXCSR */
+
+#define TXPKTRDY_T 0x1 /* data packet in FIFO indicator */
+#define FIFO_NOT_EMPTY_T 0x2 /* FIFO not empty */
+#define UNDERRUN_T 0x4 /* TxPktRdy not set for an IN token */
+#define FLUSHFIFO_T 0x8 /* flush endpoint FIFO */
+#define STALL_SEND_T 0x10 /* issue a Stall handshake */
+#define STALL_SENT_T 0x20 /* Stall handshake transmitted */
+#define CLEAR_DATATOGGLE_T 0x40 /* clear endpoint data toggle */
+#define INCOMPTX_T 0x80 /* indicates that a large packet is split */
+#define DMAREQMODE_T 0x400 /* DMA mode (0 or 1) selection */
+#define FORCE_DATATOGGLE_T 0x800 /* Force data toggle */
+#define DMAREQ_ENA_T 0x1000 /* Enable DMA request for Tx EP */
+#define ISO_T 0x4000 /* enable Isochronous transfers */
+#define AUTOSET_T 0x8000 /* allows TxPktRdy to be set automatically */
+#define ERROR_TH 0x4 /* error condition host mode */
+#define STALL_RECEIVED_TH 0x20 /* Stall handshake received host mode */
+#define NAK_TIMEOUT_TH 0x80 /* NAK timeout host mode */
+
+/* Bit masks for USB_TXCOUNT */
+
+#define TX_COUNT 0x1fff /* Byte len for the selected endpoint Tx FIFO */
+
+/* Bit masks for USB_RXCSR */
+
+#define RXPKTRDY_R 0x1 /* data packet in FIFO indicator */
+#define FIFO_FULL_R 0x2 /* FIFO not empty */
+#define OVERRUN_R 0x4 /* TxPktRdy not set for an IN token */
+#define DATAERROR_R 0x8 /* Out packet cannot be loaded into Rx FIFO */
+#define FLUSHFIFO_R 0x10 /* flush endpoint FIFO */
+#define STALL_SEND_R 0x20 /* issue a Stall handshake */
+#define STALL_SENT_R 0x40 /* Stall handshake transmitted */
+#define CLEAR_DATATOGGLE_R 0x80 /* clear endpoint data toggle */
+#define INCOMPRX_R 0x100 /* indicates that a large packet is split */
+#define DMAREQMODE_R 0x800 /* DMA mode (0 or 1) selection */
+#define DISNYET_R 0x1000 /* disable Nyet handshakes */
+#define DMAREQ_ENA_R 0x2000 /* Enable DMA request for Tx EP */
+#define ISO_R 0x4000 /* enable Isochronous transfers */
+#define AUTOCLEAR_R 0x8000 /* allows TxPktRdy to be set automatically */
+#define ERROR_RH 0x4 /* TxPktRdy not set for an IN token host mode */
+#define REQPKT_RH 0x20 /* request an IN transaction host mode */
+#define STALL_RECEIVED_RH 0x40 /* Stall handshake received host mode */
+#define INCOMPRX_RH 0x100 /* large packet is split host mode */
+#define DMAREQMODE_RH 0x800 /* DMA mode (0 or 1) selection host mode */
+#define AUTOREQ_RH 0x4000 /* sets ReqPkt automatically host mode */
+
+/* Bit masks for USB_RXCOUNT */
+
+#define RX_COUNT 0x1fff /* Packet byte len in the Rx FIFO */
+
+/* Bit masks for USB_TXTYPE */
+
+#define TARGET_EP_NO_T 0xf /* EP number */
+#define PROTOCOL_T 0xc /* transfer type */
+
+/* Bit masks for USB_TXINTERVAL */
+
+#define TX_POLL_INTERVAL 0xff /* polling interval for selected Tx EP */
+
+/* Bit masks for USB_RXTYPE */
+
+#define TARGET_EP_NO_R 0xf /* EP number */
+#define PROTOCOL_R 0xc /* transfer type */
+
+/* Bit masks for USB_RXINTERVAL */
+
+#define RX_POLL_INTERVAL 0xff /* polling interval for selected Rx EP */
+
+/* Bit masks for USB_DMA_INTERRUPT */
+
+#define DMA0_INT 0x1 /* DMA0 pending interrupt */
+#define DMA1_INT 0x2 /* DMA1 pending interrupt */
+#define DMA2_INT 0x4 /* DMA2 pending interrupt */
+#define DMA3_INT 0x8 /* DMA3 pending interrupt */
+#define DMA4_INT 0x10 /* DMA4 pending interrupt */
+#define DMA5_INT 0x20 /* DMA5 pending interrupt */
+#define DMA6_INT 0x40 /* DMA6 pending interrupt */
+#define DMA7_INT 0x80 /* DMA7 pending interrupt */
+
+/* Bit masks for USB_DMAxCONTROL */
+
+#define DMA_ENA 0x1 /* DMA enable */
+#define DIRECTION 0x2 /* direction of DMA transfer */
+#define MODE 0x4 /* DMA Bus error */
+#define INT_ENA 0x8 /* Interrupt enable */
+#define EPNUM 0xf0 /* EP number */
+#define BUSERROR 0x100 /* DMA Bus error */
+
+#endif
projects / people / ms / u-boot.git / commitdiff
