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/*
* Header file for the Xilinx Zynq SPI controller
*
* Copyright (C) 2015 Xilinx Inc
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef XILINX_SPIPS_H
#define XILINX_SPIPS_H
#include "hw/ssi/ssi.h"
#include "qemu/fifo32.h"
#include "hw/stream.h"
#include "hw/sysbus.h"
typedef struct XilinxSPIPS XilinxSPIPS;
#define XLNX_SPIPS_R_MAX (0x100 / 4)
#define XLNX_ZYNQMP_SPIPS_R_MAX (0x830 / 4)
/* Bite off 4k chunks at a time */
#define LQSPI_CACHE_SIZE 1024
#define QSPI_DMA_MAX_BURST_SIZE 2048
typedef enum {
READ = 0x3, READ_4 = 0x13,
FAST_READ = 0xb, FAST_READ_4 = 0x0c,
DOR = 0x3b, DOR_4 = 0x3c,
QOR = 0x6b, QOR_4 = 0x6c,
DIOR = 0xbb, DIOR_4 = 0xbc,
QIOR = 0xeb, QIOR_4 = 0xec,
PP = 0x2, PP_4 = 0x12,
DPP = 0xa2,
QPP = 0x32, QPP_4 = 0x34,
} FlashCMD;
struct XilinxSPIPS {
SysBusDevice parent_obj;
MemoryRegion iomem;
MemoryRegion mmlqspi;
qemu_irq irq;
int irqline;
uint8_t num_cs;
uint8_t num_busses;
uint8_t snoop_state;
int cmd_dummies;
uint8_t link_state;
uint8_t link_state_next;
uint8_t link_state_next_when;
qemu_irq *cs_lines;
bool *cs_lines_state;
SSIBus **spi;
Fifo8 rx_fifo;
Fifo8 tx_fifo;
uint8_t num_txrx_bytes;
uint32_t rx_discard;
uint32_t regs[XLNX_SPIPS_R_MAX];
bool man_start_com;
};
typedef struct {
XilinxSPIPS parent_obj;
uint8_t lqspi_buf[LQSPI_CACHE_SIZE];
hwaddr lqspi_cached_addr;
Error *migration_blocker;
bool mmio_execution_enabled;
} XilinxQSPIPS;
typedef struct {
XilinxQSPIPS parent_obj;
StreamSlave *dma;
int gqspi_irqline;
uint32_t regs[XLNX_ZYNQMP_SPIPS_R_MAX];
/* GQSPI has seperate tx/rx fifos */
Fifo8 rx_fifo_g;
Fifo8 tx_fifo_g;
Fifo32 fifo_g;
/*
* At the end of each generic command, misaligned extra bytes are discard
* or padded to tx and rx respectively to round it out (and avoid need for
* individual byte access. Since we use byte fifos, keep track of the
* alignment WRT to word access.
*/
uint8_t rx_fifo_g_align;
uint8_t tx_fifo_g_align;
bool man_start_com_g;
uint32_t dma_burst_size;
uint8_t dma_buf[QSPI_DMA_MAX_BURST_SIZE];
} XlnxZynqMPQSPIPS;
typedef struct XilinxSPIPSClass {
SysBusDeviceClass parent_class;
const MemoryRegionOps *reg_ops;
uint32_t rx_fifo_size;
uint32_t tx_fifo_size;
} XilinxSPIPSClass;
#define TYPE_XILINX_SPIPS "xlnx.ps7-spi"
#define TYPE_XILINX_QSPIPS "xlnx.ps7-qspi"
#define TYPE_XLNX_ZYNQMP_QSPIPS "xlnx.usmp-gqspi"
#define XILINX_SPIPS(obj) \
OBJECT_CHECK(XilinxSPIPS, (obj), TYPE_XILINX_SPIPS)
#define XILINX_SPIPS_CLASS(klass) \
OBJECT_CLASS_CHECK(XilinxSPIPSClass, (klass), TYPE_XILINX_SPIPS)
#define XILINX_SPIPS_GET_CLASS(obj) \
OBJECT_GET_CLASS(XilinxSPIPSClass, (obj), TYPE_XILINX_SPIPS)
#define XILINX_QSPIPS(obj) \
OBJECT_CHECK(XilinxQSPIPS, (obj), TYPE_XILINX_QSPIPS)
#define XLNX_ZYNQMP_QSPIPS(obj) \
OBJECT_CHECK(XlnxZynqMPQSPIPS, (obj), TYPE_XLNX_ZYNQMP_QSPIPS)
#endif /* XILINX_SPIPS_H */
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