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Diffstat (limited to 'firmware/microblaze/lib/memory_map.h')
| -rw-r--r-- | firmware/microblaze/lib/memory_map.h | 792 |
1 files changed, 0 insertions, 792 deletions
diff --git a/firmware/microblaze/lib/memory_map.h b/firmware/microblaze/lib/memory_map.h deleted file mode 100644 index cdf3dd338..000000000 --- a/firmware/microblaze/lib/memory_map.h +++ /dev/null @@ -1,792 +0,0 @@ -/* -*- c -*- */ -/* - * Copyright 2007,2008,2009 Free Software Foundation, Inc. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -/* Overall Memory Map - * 0000-7FFF 32K RAM space (16K on 1500, 24K on 2000, 32K on DSP) - * 8000-BFFF 16K Buffer Pool - * C000-FFFF 16K Peripherals - */ - - -#ifndef INCLUDED_MEMORY_MAP_H -#define INCLUDED_MEMORY_MAP_H - -#include <stdint.h> - - -#define MASTER_CLK_RATE 100000000 // 100 MHz - - -//////////////////////////////////////////////////////////////// -// -// Memory map for embedded wishbone bus -// -//////////////////////////////////////////////////////////////// - - -//////////////////////////////////////////////////////////////// -// Main RAM, Slave 0 - -#define RAM_BASE 0x0000 - -//////////////////////////////////////////////////////////////// -// Buffer Pool RAM, Slave 1 -// -// The buffers themselves are located in Slave 1, Buffer Pool RAM. -// The status registers are in Slave 5, Buffer Pool Status. -// The control register is in Slave 7, Settings Bus. - -#define BUFFER_POOL_RAM_BASE 0x8000 - -#define NBUFFERS 8 -#define BP_NLINES 0x0200 // number of 32-bit lines in a buffer -#define BP_LAST_LINE (BP_NLINES - 1) // last line in a buffer - -#define buffer_pool_ram \ - ((uint32_t *) BUFFER_POOL_RAM_BASE) - -#define buffer_ram(n) (&buffer_pool_ram[(n) * BP_NLINES]) - - -///////////////////////////////////////////////////// -// SPI Core, Slave 2. See core docs for more info -#define SPI_BASE 0xC000 // Base address (16-bit) - -typedef struct { - volatile uint32_t txrx0; - volatile uint32_t txrx1; - volatile uint32_t txrx2; - volatile uint32_t txrx3; - volatile uint32_t ctrl; - volatile uint32_t div; - volatile uint32_t ss; -} spi_regs_t; - -#define spi_regs ((spi_regs_t *) SPI_BASE) - - -// Masks for controlling different peripherals -#define SPI_SS_AD9510 1 -#define SPI_SS_AD9777 2 -#define SPI_SS_RX_DAC 4 -#define SPI_SS_RX_ADC 8 -#define SPI_SS_RX_DB 16 -#define SPI_SS_TX_DAC 32 -#define SPI_SS_TX_ADC 64 -#define SPI_SS_TX_DB 128 - -// Masks for different parts of CTRL reg -#define SPI_CTRL_ASS (1<<13) -#define SPI_CTRL_IE (1<<12) -#define SPI_CTRL_LSB (1<<11) -#define SPI_CTRL_TXNEG (1<<10) -#define SPI_CTRL_RXNEG (1<< 9) -#define SPI_CTRL_GO_BSY (1<< 8) -#define SPI_CTRL_CHAR_LEN_MASK 0x7F - -//////////////////////////////////////////////// -// I2C, Slave 3 -// See Wishbone I2C-Master Core Specification. - -#define I2C_BASE 0xC400 - -typedef struct { - volatile uint32_t prescaler_lo; // r/w - volatile uint32_t prescaler_hi; // r/w - volatile uint32_t ctrl; // r/w - volatile uint32_t data; // wr = transmit reg; rd = receive reg - volatile uint32_t cmd_status; // wr = command reg; rd = status reg -} i2c_regs_t; - -#define i2c_regs ((i2c_regs_t *) I2C_BASE) - -#define I2C_CTRL_EN (1 << 7) // core enable -#define I2C_CTRL_IE (1 << 6) // interrupt enable - -// -// STA, STO, RD, WR, and IACK bits are cleared automatically -// -#define I2C_CMD_START (1 << 7) // generate (repeated) start condition -#define I2C_CMD_STOP (1 << 6) // generate stop condition -#define I2C_CMD_RD (1 << 5) // read from slave -#define I2C_CMD_WR (1 << 4) // write to slave -#define I2C_CMD_NACK (1 << 3) // when a rcvr, send ACK (ACK=0) or NACK (ACK=1) -#define I2C_CMD_RSVD_2 (1 << 2) // reserved -#define I2C_CMD_RSVD_1 (1 << 1) // reserved -#define I2C_CMD_IACK (1 << 0) // set to clear pending interrupt - -#define I2C_ST_RXACK (1 << 7) // Received acknowledgement from slave (1 = NAK, 0 = ACK) -#define I2C_ST_BUSY (1 << 6) // 1 after START signal detected; 0 after STOP signal detected -#define I2C_ST_AL (1 << 5) // Arbitration lost. 1 when core lost arbitration -#define I2C_ST_RSVD_4 (1 << 4) // reserved -#define I2C_ST_RSVD_3 (1 << 3) // reserved -#define I2C_ST_RSVD_2 (1 << 2) // reserved -#define I2C_ST_TIP (1 << 1) // Transfer-in-progress -#define I2C_ST_IP (1 << 0) // Interrupt pending - - -//////////////////////////////////////////////// -// GPIO, Slave 4 -// -// These go to the daughterboard i/o pins - -#define GPIO_BASE 0xC800 - -typedef struct { - volatile uint32_t io; // tx data in high 16, rx in low 16 - volatile uint32_t ddr; // 32 bits, 1 means output. tx in high 16, rx in low 16 - volatile uint32_t tx_sel; // 16 2-bit fields select which source goes to TX DB - volatile uint32_t rx_sel; // 16 2-bit fields select which source goes to RX DB -} gpio_regs_t; - -// each 2-bit sel field is layed out this way -#define GPIO_SEL_SW 0 // if pin is an output, set by software in the io reg -#define GPIO_SEL_ATR 1 // if pin is an output, set by ATR logic -#define GPIO_SEL_DEBUG_0 2 // if pin is an output, debug lines from FPGA fabric -#define GPIO_SEL_DEBUG_1 3 // if pin is an output, debug lines from FPGA fabric - -#define gpio_base ((gpio_regs_t *) GPIO_BASE) - -/////////////////////////////////////////////////// -// Buffer Pool Status, Slave 5 -// -// The buffers themselves are located in Slave 1, Buffer Pool RAM. -// The status registers are in Slave 5, Buffer Pool Status. -// The control register is in Slave 7, Settings Bus. - -#define BUFFER_POOL_STATUS_BASE 0xCC00 - -typedef struct { - volatile uint32_t last_line[NBUFFERS]; // last line xfer'd in buffer - volatile uint32_t status; // error and done flags - volatile uint32_t hw_config; // see below - volatile uint32_t dummy[3]; - volatile uint32_t irqs; - volatile uint32_t pri_enc_bp_status; - volatile uint32_t cycle_count; -} buffer_pool_status_t; - -#define buffer_pool_status ((buffer_pool_status_t *) BUFFER_POOL_STATUS_BASE) - -/* - * Buffer n's xfer is done. - * Clear this bit by issuing bp_clear_buf(n) - */ -#define BPS_DONE(n) (0x00000001 << (n)) -#define BPS_DONE_0 BPS_DONE(0) -#define BPS_DONE_1 BPS_DONE(1) -#define BPS_DONE_2 BPS_DONE(2) -#define BPS_DONE_3 BPS_DONE(3) -#define BPS_DONE_4 BPS_DONE(4) -#define BPS_DONE_5 BPS_DONE(5) -#define BPS_DONE_6 BPS_DONE(6) -#define BPS_DONE_7 BPS_DONE(7) - -/* - * Buffer n's xfer had an error. - * Clear this bit by issuing bp_clear_buf(n) - */ -#define BPS_ERROR(n) (0x00000100 << (n)) -#define BPS_ERROR_0 BPS_ERROR(0) -#define BPS_ERROR_1 BPS_ERROR(1) -#define BPS_ERROR_2 BPS_ERROR(2) -#define BPS_ERROR_3 BPS_ERROR(3) -#define BPS_ERROR_4 BPS_ERROR(4) -#define BPS_ERROR_5 BPS_ERROR(5) -#define BPS_ERROR_6 BPS_ERROR(6) -#define BPS_ERROR_7 BPS_ERROR(7) - -/* - * Buffer n is idle. A buffer is idle if it's not - * DONE, ERROR, or processing a transaction. If it's - * IDLE, it's safe to start a new transaction. - * - * Clear this bit by starting a xfer with - * bp_send_from_buf or bp_receive_to_buf. - */ -#define BPS_IDLE(n) (0x00010000 << (n)) -#define BPS_IDLE_0 BPS_IDLE(0) -#define BPS_IDLE_1 BPS_IDLE(1) -#define BPS_IDLE_2 BPS_IDLE(2) -#define BPS_IDLE_3 BPS_IDLE(3) -#define BPS_IDLE_4 BPS_IDLE(4) -#define BPS_IDLE_5 BPS_IDLE(5) -#define BPS_IDLE_6 BPS_IDLE(6) -#define BPS_IDLE_7 BPS_IDLE(7) - -/* - * Buffer n has a "slow path" packet in it. - * This bit is orthogonal to the bits above and indicates that - * the FPGA ethernet rx protocol engine has identified this packet - * as one requiring firmware intervention. - */ -#define BPS_SLOWPATH(n) (0x01000000 << (n)) -#define BPS_SLOWPATH_0 BPS_SLOWPATH(0) -#define BPS_SLOWPATH_1 BPS_SLOWPATH(1) -#define BPS_SLOWPATH_2 BPS_SLOWPATH(2) -#define BPS_SLOWPATH_3 BPS_SLOWPATH(3) -#define BPS_SLOWPATH_4 BPS_SLOWPATH(4) -#define BPS_SLOWPATH_5 BPS_SLOWPATH(5) -#define BPS_SLOWPATH_6 BPS_SLOWPATH(6) -#define BPS_SLOWPATH_7 BPS_SLOWPATH(7) - - -#define BPS_DONE_ALL 0x000000ff // mask of all dones -#define BPS_ERROR_ALL 0x0000ff00 // mask of all errors -#define BPS_IDLE_ALL 0x00ff0000 // mask of all idles -#define BPS_SLOWPATH_ALL 0xff000000 // mask of all slowpaths - -// The hw_config register - -#define HWC_SIMULATION 0x80000000 -#define HWC_WB_CLK_DIV_MASK 0x0000000f - -/*! - * \brief return non-zero if we're running under the simulator - */ -inline static int -hwconfig_simulation_p(void) -{ - return buffer_pool_status->hw_config & HWC_SIMULATION; -} - -/*! - * \brief Return Wishbone Clock divisor. - * The processor runs at the Wishbone Clock rate which is MASTER_CLK_RATE / divisor. - */ -inline static int -hwconfig_wishbone_divisor(void) -{ - return buffer_pool_status->hw_config & HWC_WB_CLK_DIV_MASK; -} - -/////////////////////////////////////////////////// -// Ethernet Core, Slave 6 - -#define ETH_BASE 0xD000 - -#include "eth_mac_regs.h" - -#define eth_mac ((eth_mac_regs_t *) ETH_BASE) - -//////////////////////////////////////////////////// -// Settings Bus, Slave #7, Not Byte Addressable! -// -// Output-only from processor point-of-view. -// 1KB of address space (== 256 32-bit write-only regs) - - -#define MISC_OUTPUT_BASE 0xD400 -#define TX_PROTOCOL_ENGINE_BASE 0xD480 -#define RX_PROTOCOL_ENGINE_BASE 0xD4C0 -#define BUFFER_POOL_CTRL_BASE 0xD500 -#define LAST_SETTING_REG 0xD7FC // last valid setting register - -#define SR_MISC 0 -#define SR_TX_PROT_ENG 32 -#define SR_RX_PROT_ENG 48 -#define SR_BUFFER_POOL_CTRL 64 -#define SR_UDP_SM 96 -#define SR_TX_DSP 208 -#define SR_TX_CTRL 224 -#define SR_RX_DSP 160 -#define SR_RX_CTRL 176 -#define SR_TIME64 192 -#define SR_SIMTIMER 198 -#define SR_LAST 255 - -#define _SR_ADDR(sr) (MISC_OUTPUT_BASE + (sr) * sizeof(uint32_t)) - -// --- buffer pool control regs --- - -typedef struct { - volatile uint32_t ctrl; -} buffer_pool_ctrl_t; - -// buffer pool ports - -#define PORT_SERDES 0 // serial/deserializer -#define PORT_DSP 1 // DSP tx or rx pipeline -#define PORT_ETH 2 // ethernet tx or rx -#define PORT_RAM 3 // RAM tx or rx - -// the buffer pool ctrl register fields - -#define BPC_BUFFER(n) (((n) & 0xf) << 28) -#define BPC_BUFFER_MASK BPC_BUFFER(~0) -#define BPC_BUFFER_0 BPC_BUFFER(0) -#define BPC_BUFFER_1 BPC_BUFFER(1) -#define BPC_BUFFER_2 BPC_BUFFER(2) -#define BPC_BUFFER_3 BPC_BUFFER(3) -#define BPC_BUFFER_4 BPC_BUFFER(4) -#define BPC_BUFFER_5 BPC_BUFFER(5) -#define BPC_BUFFER_6 BPC_BUFFER(6) -#define BPC_BUFFER_7 BPC_BUFFER(7) -#define BPC_BUFFER_NIL BPC_BUFFER(0x8) // disable - -#define BPC_PORT(n) (((n) & 0x7) << 25) -#define BPC_PORT_MASK BPC_PORT(~0) -#define BPC_PORT_SERDES BPC_PORT(PORT_SERDES) -#define BPC_PORT_DSP BPC_PORT(PORT_DSP) -#define BPC_PORT_ETH BPC_PORT(PORT_ETH) -#define BPC_PORT_RAM BPC_PORT(PORT_RAM) -#define BPC_PORT_NIL BPC_PORT(0x4) // disable - -#define BPC_CLR (1 << 24) // mutually excl commands -#define BPC_READ (1 << 23) -#define BPC_WRITE (1 << 22) - -#define BPC_STEP(step) (((step) & 0xf) << 18) -#define BPC_STEP_MASK BPC_STEP(~0) -#define BPC_LAST_LINE(line) (((line) & 0x1ff) << 9) -#define BPC_LAST_LINE_MASK BPC_LAST_LINE(~0) -#define BPC_FIRST_LINE(line) (((line) & 0x1ff) << 0) -#define BPC_FIRST_LINE_MASK BPC_FIRST_LINE(~0) - -#define buffer_pool_ctrl ((buffer_pool_ctrl_t *) BUFFER_POOL_CTRL_BASE) - -// --- misc outputs --- - -typedef struct { - volatile uint32_t clk_ctrl; - volatile uint32_t serdes_ctrl; - volatile uint32_t adc_ctrl; - volatile uint32_t leds; - volatile uint32_t phy_ctrl; // LSB is reset line to eth phy - volatile uint32_t debug_mux_ctrl; - volatile uint32_t ram_page; // FIXME should go somewhere else... - volatile uint32_t flush_icache; // Flush the icache - volatile uint32_t led_src; // HW or SW control for LEDs -} output_regs_t; - -#define SERDES_ENABLE 8 -#define SERDES_PRBSEN 4 -#define SERDES_LOOPEN 2 -#define SERDES_RXEN 1 - -#define ADC_CTRL_ON 0x0F -#define ADC_CTRL_OFF 0x00 - -// crazy order that matches the labels on the case - -#define LED_A (1 << 4) -#define LED_B (1 << 1) -#define LED_C (1 << 3) -#define LED_D (1 << 0) -#define LED_E (1 << 2) -// LED_F // controlled by CPLD -#define LED_RJ45 (1 << 5) - -#define output_regs ((output_regs_t *) MISC_OUTPUT_BASE) - -// --- udp tx regs --- - -typedef struct { - // Bits 19:16 are control info; bits 15:0 are data (see below) - // First two words are unused. - volatile uint32_t _nope[2]; - //--- ethernet header - 14 bytes--- - volatile struct{ - uint32_t mac_dst_0_1; //word 2 - uint32_t mac_dst_2_3; - uint32_t mac_dst_4_5; - uint32_t mac_src_0_1; - uint32_t mac_src_2_3; - uint32_t mac_src_4_5; - uint32_t ether_type; //word 8 - } eth_hdr; - //--- ip header - 20 bytes --- - volatile struct{ - uint32_t ver_ihl_tos; //word 9 - uint32_t total_length; - uint32_t identification; - uint32_t flags_frag_off; - uint32_t ttl_proto; - uint32_t checksum; - uint32_t src_addr_high; - uint32_t src_addr_low; - uint32_t dst_addr_high; - uint32_t dst_addr_low; //word 18 - } ip_hdr; - //--- udp header - 8 bytes --- - volatile struct{ - uint32_t src_port; //word 19 - uint32_t dst_port; - uint32_t length; - uint32_t checksum; //word 22 - } udp_hdr; - volatile uint32_t _pad[32-23]; -} sr_udp_sm_t; - -// control bits (all expect UDP_SM_LAST_WORD are mutually exclusive) - -// This is the last word of the header -#define UDP_SM_LAST_WORD (1 << 19) - -// Insert IP header checksum here. Data is the xor of 16'hFFFF and -// the values written into regs 9-13 and 15-18. -#define UDP_SM_INS_IP_HDR_CHKSUM (1 << 18) - -// Insert IP Length here (data ignored) -#define UDP_SM_INS_IP_LEN (1 << 17) - -// Insert UDP Length here (data ignore) -#define UDP_SM_INS_UDP_LEN (1 << 16) - -#define sr_udp_sm ((sr_udp_sm_t *) _SR_ADDR(SR_UDP_SM)) - -// --- dsp tx regs --- - -#define MIN_CIC_INTERP 1 -#define MAX_CIC_INTERP 128 - -typedef struct { - volatile uint32_t num_chan; - volatile uint32_t clear_state; // clears out state machine, fifos, -} sr_tx_ctrl_t; - -#define sr_tx_ctrl ((sr_tx_ctrl_t *) _SR_ADDR(SR_TX_CTRL)) - -typedef struct { - volatile int32_t freq; - volatile uint32_t scale_iq; // {scale_i,scale_q} - volatile uint32_t interp_rate; - volatile uint32_t _padding0; // padding for the tx_mux - // NOT freq, scale, interp - /*! - * \brief output mux configuration. - * - * <pre> - * 3 2 1 - * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 - * +-------------------------------+-------+-------+-------+-------+ - * | | DAC1 | DAC0 | - * +-------------------------------+-------+-------+-------+-------+ - * - * There are N DUCs (1 now) with complex inputs and outputs. - * There are two DACs. - * - * Each 4-bit DACx field specifies the source for the DAC - * Each subfield is coded like this: - * - * 3 2 1 0 - * +-------+ - * | N | - * +-------+ - * - * N specifies which DUC output is connected to this DAC. - * - * N which interp output - * --- ------------------- - * 0 DUC 0 I - * 1 DUC 0 Q - * 2 DUC 1 I - * 3 DUC 1 Q - * F All Zeros - * - * The default value is 0x10 - * </pre> - */ - volatile uint32_t tx_mux; - -} dsp_tx_regs_t; - -#define dsp_tx_regs ((dsp_tx_regs_t *) _SR_ADDR(SR_TX_DSP)) - -// --- VITA RX CTRL regs --- -typedef struct { - // The following 3 are logically a single command register. - // They are clocked into the underlying fifo when time_ticks is written. - volatile uint32_t cmd; // {now, chain, num_samples(30) - volatile uint32_t time_secs; - volatile uint32_t time_ticks; - - volatile uint32_t clear_overrun; // write anything to clear overrun - volatile uint32_t vrt_header; // word 0 of packet. FPGA fills in packet counter - volatile uint32_t vrt_stream_id; // word 1 of packet. - volatile uint32_t vrt_trailer; - volatile uint32_t nsamples_per_pkt; - volatile uint32_t nchannels; // 1 in basic case, up to 4 for vector sources - volatile uint32_t pad[7]; // Make each structure 16 elements long -} sr_rx_ctrl_t; - -#define sr_rx_ctrl ((sr_rx_ctrl_t *) _SR_ADDR(SR_RX_CTRL)) - -// --- dsp rx regs --- -#define MIN_CIC_DECIM 1 -#define MAX_CIC_DECIM 128 - -typedef struct { - volatile int32_t freq; - volatile uint32_t scale_iq; // {scale_i,scale_q} - volatile uint32_t decim_rate; - volatile uint32_t dcoffset_i; // Bit 31 high sets fixed offset mode, using lower 14 bits, - // otherwise it is automatic - volatile uint32_t dcoffset_q; // Bit 31 high sets fixed offset mode, using lower 14 bits - - /*! - * \brief input mux configuration. - * - * This determines which ADC (or constant zero) is connected to - * each DDC input. There are N DDCs (1 now). Each has two inputs. - * - * <pre> - * Mux value: - * - * 3 2 1 - * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 - * +-------+-------+-------+-------+-------+-------+-------+-------+ - * | |Q0 |I0 | - * +-------+-------+-------+-------+-------+-------+-------+-------+ - * - * Each 2-bit I field is either 00 (A/D A), 01 (A/D B) or 1X (const zero) - * Each 2-bit Q field is either 00 (A/D A), 01 (A/D B) or 1X (const zero) - * - * The default value is 0x4 - * </pre> - */ - volatile uint32_t rx_mux; // called adc_mux in dsp_core_rx.v - - /*! - * \brief Streaming GPIO configuration - * - * This determines whether the LSBs of I and Q samples come from the DSP - * pipeline or from the io_rx GPIO pins. To stream GPIO, one must first - * set the GPIO data direction register to have io_rx[15] and/or io_rx[14] - * configured as inputs. The GPIO pins will be sampled at the time the - * remainder of the DSP sample is strobed into the RX sample FIFO. There - * will be a decimation-dependent fixed time offset between the GPIO - * sample stream and the associated RF samples. - * - * 3 2 1 - * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 - * +-------+-------+-------+-------+-------+-------+-------+-------+ - * | MBZ |Q|I| - * +-------+-------+-------+-------+-------+-------+-------+-------+ - * - * I 0=LSB comes from DSP pipeline (default) - * 1=LSB comes from io_rx[15] - * - * Q 0=LSB comes from DSP pipeline (default) - * 1=LSB comes from io_rx[14] - */ - volatile uint32_t gpio_stream_enable; - -} dsp_rx_regs_t; - -#define dsp_rx_regs ((dsp_rx_regs_t *) _SR_ADDR(SR_RX_DSP)) - -// ---------------------------------------------------------------- -// VITA49 64 bit time (write only) - /*! - * \brief Time 64 flags - * - * <pre> - * - * 3 2 1 - * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 - * +-----------------------------------------------------------+-+-+ - * | |S|P| - * +-----------------------------------------------------------+-+-+ - * - * P - PPS edge selection (0=negedge, 1=posedge, default=0) - * S - Source (0=sma, 1=mimo, 0=default) - * - * </pre> - */ -typedef struct { - volatile uint32_t secs; // value to set absolute secs to on next PPS - volatile uint32_t ticks; // value to set absolute ticks to on next PPS - volatile uint32_t flags; // flags - see chart above - volatile uint32_t imm; // set immediate (0=latch on next pps, 1=latch immediate, default=0) -} sr_time64_t; - -#define sr_time64 ((sr_time64_t *) _SR_ADDR(SR_TIME64)) - - -/* - * --- ethernet tx protocol engine regs (write only) --- - * - * These registers control the transmit portion of the ethernet - * protocol engine (out of USRP2). The protocol engine handles fifo - * status and sequence number insertion in outgoing packets, and - * automagically generates status packets when required to inform the - * host of changes in fifo availability. - * - * All outgoing packets have their fifo_status field set to the number - * of 32-bit lines of fifo available in the ethernet Rx fifo (see - * usrp2_eth_packet.h). Seqno's are set if FIXME, else 0. - * - * FIXME clean this up once we know how it's supposed to behave. - */ - -typedef struct { - volatile uint32_t flags; // not yet fully defined (channel?) - volatile uint32_t mac_dst0123; // 4 bytes of destination mac addr - volatile uint32_t mac_dst45src01; // 2 bytes of dest mac addr; 2 bytes of src mac addr - volatile uint32_t mac_src2345; // 4 bytes of destination mac addr - volatile uint32_t seqno; // Write to init seqno. It autoincs on match -} tx_proto_engine_regs_t; - -#define tx_proto_engine ((tx_proto_engine_regs_t *) TX_PROTOCOL_ENGINE_BASE) - -/* - * --- ethernet rx protocol engine regs (write only) --- - * - * These registers control the receive portion of the ethernet - * protocol engine (into USRP2). The protocol engine offloads common - * packet inspection operations so that firmware has less to do on - * "fast path" packets. - * - * The registers define conditions which must be matched for a packet - * to be considered a "fast path" packet. If a received packet - * matches the src and dst mac address, ethertype, flags field, and - * expected seqno number it is considered a "fast path" packet, and - * the expected seqno is updated. If the packet fails to satisfy any - * of the above conditions it's a "slow path" packet, and the - * corresponding SLOWPATH flag will be set buffer_status register. - */ - -typedef struct { - volatile uint32_t flags; // not yet fully defined (channel?) - volatile uint32_t mac_dst0123; // 4 bytes of destination mac addr - volatile uint32_t mac_dst45src01; // 2 bytes of dest mac addr; 2 bytes of src mac addr - volatile uint32_t mac_src2345; // 4 bytes of destination mac addr - volatile uint32_t ethertype_pad; // ethertype in high 16-bits -} rx_proto_engine_regs_t; - -#define rx_proto_engine ((rx_proto_engine_regs_t *) RX_PROTOCOL_ENGINE_BASE) - - - -/////////////////////////////////////////////////// -// Simple Programmable Interrupt Controller, Slave 8 - -#define PIC_BASE 0xD800 - -// Interrupt request lines -// Bit numbers (LSB == 0) that correpond to interrupts into PIC - -#define IRQ_BUFFER 0 // buffer manager -#define IRQ_ONETIME 1 -#define IRQ_SPI 2 -#define IRQ_I2C 3 -#define IRQ_PHY 4 // ethernet PHY -#define IRQ_UNDERRUN 5 -#define IRQ_OVERRUN 6 -#define IRQ_PPS 7 // pulse per second -#define IRQ_UART_RX 8 -#define IRQ_UART_TX 9 -#define IRQ_SERDES 10 -#define IRQ_CLKSTATUS 11 -#define IRQ_PERIODIC 12 - -#define IRQ_TO_MASK(x) (1 << (x)) - -#define PIC_BUFFER_INT IRQ_TO_MASK(IRQ_BUFFER) -#define PIC_ONETIME_INT IRQ_TO_MASK(IRQ_ONETIME) -#define PIC_SPI_INT IRQ_TO_MASK(IRQ_SPI) -#define PIC_I2C_INT IRQ_TO_MASK(IRQ_I2C) -#define PIC_PHY_INT IRQ_TO_MASK(IRQ_PHY) -#define PIC_UNDERRUN_INT IRQ_TO_MASK(IRQ_UNDERRUN) -#define PIC_OVERRUN_INT IRQ_TO_MASK(IRQ_OVERRUN) -#define PIC_PPS_INT IRQ_TO_MASK(IRQ_PPS) -#define PIC_UART_RX_INT IRQ_TO_MASK(IRQ_UART_RX) -#define PIC_UART_TX_INT IRQ_TO_MASK(IRQ_UART_TX) -#define PIC_SERDES IRQ_TO_MASK(IRQ_SERDES) -#define PIC_CLKSTATUS IRQ_TO_MASK(IRQ_CLKSTATUS) - -typedef struct { - volatile uint32_t edge_enable; // mask: 1 -> edge triggered, 0 -> level - volatile uint32_t polarity; // mask: 1 -> rising edge - volatile uint32_t mask; // mask: 1 -> disabled - volatile uint32_t pending; // mask: 1 -> pending; write 1's to clear pending ints -} pic_regs_t; - -#define pic_regs ((pic_regs_t *) PIC_BASE) - -// ---------------------------------------------------------------- -// WB_CLK_RATE is the time base for this -typedef struct { - volatile uint32_t onetime; // Number of wb clk cycles till the onetime interrupt - volatile uint32_t periodic; // Repeat rate of periodic interrupt -} sr_simple_timer_t; - -#define sr_simple_timer ((sr_simple_timer_t *) _SR_ADDR(SR_SIMTIMER)) - -/////////////////////////////////////////////////// -// UART, Slave 10 - -#define UART_BASE 0xE000 - -typedef struct { - // All elements are 8 bits except for clkdiv (16), but we use uint32 to make - // the hardware for decoding easier - volatile uint32_t clkdiv; // Set to 50e6 divided by baud rate (no x16 factor) - volatile uint32_t txlevel; // Number of spaces in the FIFO for writes - volatile uint32_t rxlevel; // Number of available elements in the FIFO for reads - volatile uint32_t txchar; // Write characters to be sent here - volatile uint32_t rxchar; // Read received characters here -} uart_regs_t; - -#define uart_regs ((uart_regs_t *) UART_BASE) - -/////////////////////////////////////////////////// -// ATR Controller, Slave 11 - -#define ATR_BASE 0xE400 - -typedef struct { - volatile uint32_t v[16]; -} atr_regs_t; - -#define ATR_IDLE 0x0 // indicies into v -#define ATR_TX 0x1 -#define ATR_RX 0x2 -#define ATR_FULL 0x3 - -#define atr_regs ((atr_regs_t *) ATR_BASE) - -/////////////////////////////////////////////////// -// SD Card SPI interface, Slave 13 -// All regs are 8 bits wide, but are accessed as if they are 32 bits - -#define SDSPI_BASE 0xEC00 - -typedef struct { - volatile uint32_t status; // Write a 1 or 0 for controlling CS - volatile uint32_t clkdiv; - volatile uint32_t send_dat; - volatile uint32_t receive_dat; -} sdspi_regs_t; - -#define sdspi_regs ((sdspi_regs_t *) SDSPI_BASE) - -/////////////////////////////////////////////////// -// External RAM interface, Slave 14 -// Pages are 1K. Page is 10 bits, set by a control register -// output_regs->ram_page - -#define EXTRAM_BASE 0xF000 -#define extram ((volatile uint32_t *) EXTRAM_BASE) - - -/////////////////////////////////////////////////// - -#endif - |