From 6b91f0155b9338b7fa53d1d64f4e40c43a5d3bba Mon Sep 17 00:00:00 2001 From: Peter Crosthwaite Date: Mon, 3 Jun 2013 17:17:41 +0100 Subject: xilinx_spips: seperate SPI and QSPI as two classes Make SPI and QSPI different classes. QSPIPS is setup as a child of SPIPS. Only QSPI has the LQSPI functionality, so move all that to the child class. Signed-off-by: Peter Crosthwaite Reviewed-by: Peter Maydell Reviewed-by: Edgar E. Iglesias Message-id: 2cdd0cadb5ba77ca02fde5cae627852dc9a64c71.1369117359.git.peter.crosthwaite@xilinx.com Signed-off-by: Peter Maydell --- hw/ssi/xilinx_spips.c | 69 ++++++++++++++++++++++++++++++++++++++++----------- 1 file changed, 55 insertions(+), 14 deletions(-) (limited to 'hw/ssi') diff --git a/hw/ssi/xilinx_spips.c b/hw/ssi/xilinx_spips.c index b2397f4..734adf0 100644 --- a/hw/ssi/xilinx_spips.c +++ b/hw/ssi/xilinx_spips.c @@ -129,7 +129,8 @@ typedef enum { } FlashCMD; typedef struct { - SysBusDevice busdev; + SysBusDevice parent_obj; + MemoryRegion iomem; MemoryRegion mmlqspi; @@ -149,15 +150,23 @@ typedef struct { uint8_t num_txrx_bytes; uint32_t regs[R_MAX]; +} XilinxSPIPS; + +typedef struct { + XilinxSPIPS parent_obj; uint32_t lqspi_buf[LQSPI_CACHE_SIZE]; hwaddr lqspi_cached_addr; -} XilinxSPIPS; +} XilinxQSPIPS; + -#define TYPE_XILINX_SPIPS "xilinx,spips" +#define TYPE_XILINX_SPIPS "xlnx.ps7-spi" +#define TYPE_XILINX_QSPIPS "xlnx.ps7-qspi" #define XILINX_SPIPS(obj) \ OBJECT_CHECK(XilinxSPIPS, (obj), TYPE_XILINX_SPIPS) +#define XILINX_QSPIPS(obj) \ + OBJECT_CHECK(XilinxQSPIPS, (obj), TYPE_XILINX_QSPIPS) static inline int num_effective_busses(XilinxSPIPS *s) { @@ -436,11 +445,12 @@ static uint64_t lqspi_read(void *opaque, hwaddr addr, unsigned int size) { int i; + XilinxQSPIPS *q = opaque; XilinxSPIPS *s = opaque; - if (addr >= s->lqspi_cached_addr && - addr <= s->lqspi_cached_addr + LQSPI_CACHE_SIZE - 4) { - return s->lqspi_buf[(addr - s->lqspi_cached_addr) >> 2]; + if (addr >= q->lqspi_cached_addr && + addr <= q->lqspi_cached_addr + LQSPI_CACHE_SIZE - 4) { + return q->lqspi_buf[(addr - q->lqspi_cached_addr) >> 2]; } else { int flash_addr = (addr / num_effective_busses(s)); int slave = flash_addr >> LQSPI_ADDRESS_BITS; @@ -484,14 +494,14 @@ lqspi_read(void *opaque, hwaddr addr, unsigned int size) for (i = 0; i < LQSPI_CACHE_SIZE / 4; ++i) { tx_data_bytes(s, 0, 4); xilinx_spips_flush_txfifo(s); - rx_data_bytes(s, &s->lqspi_buf[cache_entry], 4); + rx_data_bytes(s, &q->lqspi_buf[cache_entry], 4); cache_entry++; } s->regs[R_CONFIG] |= CS; xilinx_spips_update_cs_lines(s); - s->lqspi_cached_addr = addr; + q->lqspi_cached_addr = addr; return lqspi_read(opaque, addr, size); } } @@ -511,7 +521,7 @@ static void xilinx_spips_realize(DeviceState *dev, Error **errp) SysBusDevice *sbd = SYS_BUS_DEVICE(dev); int i; - DB_PRINT("inited device model\n"); + DB_PRINT("realized spips\n"); s->spi = g_new(SSIBus *, s->num_busses); for (i = 0; i < s->num_busses; ++i) { @@ -531,17 +541,32 @@ static void xilinx_spips_realize(DeviceState *dev, Error **errp) memory_region_init_io(&s->iomem, &spips_ops, s, "spi", R_MAX*4); sysbus_init_mmio(sbd, &s->iomem); - memory_region_init_io(&s->mmlqspi, &lqspi_ops, s, "lqspi", - (1 << LQSPI_ADDRESS_BITS) * 2); - sysbus_init_mmio(sbd, &s->mmlqspi); - s->irqline = -1; - s->lqspi_cached_addr = ~0ULL; fifo8_create(&s->rx_fifo, RXFF_A); fifo8_create(&s->tx_fifo, TXFF_A); } +static void xilinx_qspips_realize(DeviceState *dev, Error **errp) +{ + XilinxSPIPS *s = XILINX_SPIPS(dev); + XilinxQSPIPS *q = XILINX_QSPIPS(dev); + SysBusDevice *sbd = SYS_BUS_DEVICE(dev); + + DB_PRINT("realized qspips\n"); + + s->num_busses = 2; + s->num_cs = 2; + s->num_txrx_bytes = 4; + + xilinx_spips_realize(dev, errp); + memory_region_init_io(&s->mmlqspi, &lqspi_ops, s, "lqspi", + (1 << LQSPI_ADDRESS_BITS) * 2); + sysbus_init_mmio(sbd, &s->mmlqspi); + + q->lqspi_cached_addr = ~0ULL; +} + static int xilinx_spips_post_load(void *opaque, int version_id) { xilinx_spips_update_ixr((XilinxSPIPS *)opaque); @@ -570,6 +595,14 @@ static Property xilinx_spips_properties[] = { DEFINE_PROP_UINT8("num-txrx-bytes", XilinxSPIPS, num_txrx_bytes, 1), DEFINE_PROP_END_OF_LIST(), }; + +static void xilinx_qspips_class_init(ObjectClass *klass, void * data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->realize = xilinx_qspips_realize; +} + static void xilinx_spips_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); @@ -587,9 +620,17 @@ static const TypeInfo xilinx_spips_info = { .class_init = xilinx_spips_class_init, }; +static const TypeInfo xilinx_qspips_info = { + .name = TYPE_XILINX_QSPIPS, + .parent = TYPE_XILINX_SPIPS, + .instance_size = sizeof(XilinxQSPIPS), + .class_init = xilinx_qspips_class_init, +}; + static void xilinx_spips_register_types(void) { type_register_static(&xilinx_spips_info); + type_register_static(&xilinx_qspips_info); } type_init(xilinx_spips_register_types) -- cgit v1.1