From: Wilfred Mallawa <wilfred.mall...@wdc.com> Conenct spi host[1/0] to opentitan.
Signed-off-by: Wilfred Mallawa <wilfred.mall...@wdc.com> --- hw/riscv/opentitan.c | 42 ++++++++++++++++++++++++++++++++---- include/hw/riscv/opentitan.h | 16 ++++++++++++-- 2 files changed, 52 insertions(+), 6 deletions(-) diff --git a/hw/riscv/opentitan.c b/hw/riscv/opentitan.c index aec7cfa33f..abbe08d4d4 100644 --- a/hw/riscv/opentitan.c +++ b/hw/riscv/opentitan.c @@ -1,7 +1,7 @@ /* * QEMU RISC-V Board Compatible with OpenTitan FPGA platform * - * Copyright (c) 2020 Western Digital + * Copyright (c) 2022 Western Digital * * Provides a board compatible with the OpenTitan FPGA platform: * @@ -34,13 +34,15 @@ static const MemMapEntry ibex_memmap[] = { [IBEX_DEV_FLASH] = { 0x20000000, 0x80000 }, [IBEX_DEV_UART] = { 0x40000000, 0x1000 }, [IBEX_DEV_GPIO] = { 0x40040000, 0x1000 }, - [IBEX_DEV_SPI] = { 0x40050000, 0x1000 }, + [IBEX_DEV_SPI_DEVICE] = { 0x40050000, 0x1000 }, [IBEX_DEV_I2C] = { 0x40080000, 0x1000 }, [IBEX_DEV_PATTGEN] = { 0x400e0000, 0x1000 }, [IBEX_DEV_TIMER] = { 0x40100000, 0x1000 }, [IBEX_DEV_SENSOR_CTRL] = { 0x40110000, 0x1000 }, [IBEX_DEV_OTP_CTRL] = { 0x40130000, 0x4000 }, [IBEX_DEV_USBDEV] = { 0x40150000, 0x1000 }, + [IBEX_DEV_SPI_HOST0] = { 0x40300000, 0x1000 }, + [IBEX_DEV_SPI_HOST1] = { 0x40310000, 0x1000 }, [IBEX_DEV_PWRMGR] = { 0x40400000, 0x1000 }, [IBEX_DEV_RSTMGR] = { 0x40410000, 0x1000 }, [IBEX_DEV_CLKMGR] = { 0x40420000, 0x1000 }, @@ -118,11 +120,18 @@ static void lowrisc_ibex_soc_init(Object *obj) object_initialize_child(obj, "uart", &s->uart, TYPE_IBEX_UART); object_initialize_child(obj, "timer", &s->timer, TYPE_IBEX_TIMER); + + for (int i = 0; i < OPENTITAN_NUM_SPI_HOSTS; i++) { + object_initialize_child(obj, "spi_host[*]", &s->spi_host[i], + TYPE_IBEX_SPI_HOST); + } } static void lowrisc_ibex_soc_realize(DeviceState *dev_soc, Error **errp) { const MemMapEntry *memmap = ibex_memmap; + DeviceState *dev; + SysBusDevice *busdev; MachineState *ms = MACHINE(qdev_get_machine()); LowRISCIbexSoCState *s = RISCV_IBEX_SOC(dev_soc); MemoryRegion *sys_mem = get_system_memory(); @@ -207,10 +216,35 @@ static void lowrisc_ibex_soc_realize(DeviceState *dev_soc, Error **errp) qdev_get_gpio_in(DEVICE(qemu_get_cpu(0)), IRQ_M_TIMER)); + /* SPI-Hosts */ + for (int i = 0; i < OPENTITAN_NUM_SPI_HOSTS; ++i) { + dev = DEVICE(&(s->spi_host[i])); + if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi_host[i]), errp)) { + return; + } + busdev = SYS_BUS_DEVICE(dev); + sysbus_mmio_map(busdev, 0, memmap[IBEX_DEV_SPI_HOST0 + i].base); + + switch (i) { + case OPENTITAN_SPI_HOST0: + sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(DEVICE(&s->plic), + IBEX_SPI_HOST0_ERR_IRQ)); + sysbus_connect_irq(busdev, 1, qdev_get_gpio_in(DEVICE(&s->plic), + IBEX_SPI_HOST0_SPI_EVENT_IRQ)); + break; + case OPENTITAN_SPI_HOST1: + sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(DEVICE(&s->plic), + IBEX_SPI_HOST1_ERR_IRQ)); + sysbus_connect_irq(busdev, 1, qdev_get_gpio_in(DEVICE(&s->plic), + IBEX_SPI_HOST1_SPI_EVENT_IRQ)); + break; + } + } + create_unimplemented_device("riscv.lowrisc.ibex.gpio", memmap[IBEX_DEV_GPIO].base, memmap[IBEX_DEV_GPIO].size); - create_unimplemented_device("riscv.lowrisc.ibex.spi", - memmap[IBEX_DEV_SPI].base, memmap[IBEX_DEV_SPI].size); + create_unimplemented_device("riscv.lowrisc.ibex.spi_device", + memmap[IBEX_DEV_SPI_DEVICE].base, memmap[IBEX_DEV_SPI_DEVICE].size); create_unimplemented_device("riscv.lowrisc.ibex.i2c", memmap[IBEX_DEV_I2C].base, memmap[IBEX_DEV_I2C].size); create_unimplemented_device("riscv.lowrisc.ibex.pattgen", diff --git a/include/hw/riscv/opentitan.h b/include/hw/riscv/opentitan.h index eac35ef590..3a3f412ef8 100644 --- a/include/hw/riscv/opentitan.h +++ b/include/hw/riscv/opentitan.h @@ -1,7 +1,7 @@ /* * QEMU RISC-V Board Compatible with OpenTitan FPGA platform * - * Copyright (c) 2020 Western Digital + * Copyright (c) 2022 Western Digital * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -23,11 +23,16 @@ #include "hw/intc/sifive_plic.h" #include "hw/char/ibex_uart.h" #include "hw/timer/ibex_timer.h" +#include "hw/ssi/ibex_spi_host.h" #include "qom/object.h" #define TYPE_RISCV_IBEX_SOC "riscv.lowrisc.ibex.soc" OBJECT_DECLARE_SIMPLE_TYPE(LowRISCIbexSoCState, RISCV_IBEX_SOC) +#define OPENTITAN_NUM_SPI_HOSTS 2 +#define OPENTITAN_SPI_HOST0 0 +#define OPENTITAN_SPI_HOST1 1 + struct LowRISCIbexSoCState { /*< private >*/ SysBusDevice parent_obj; @@ -37,6 +42,7 @@ struct LowRISCIbexSoCState { SiFivePLICState plic; IbexUartState uart; IbexTimerState timer; + IbexSPIHostState spi_host[OPENTITAN_NUM_SPI_HOSTS]; MemoryRegion flash_mem; MemoryRegion rom; @@ -57,8 +63,10 @@ enum { IBEX_DEV_FLASH, IBEX_DEV_FLASH_VIRTUAL, IBEX_DEV_UART, + IBEX_DEV_SPI_DEVICE, + IBEX_DEV_SPI_HOST0, + IBEX_DEV_SPI_HOST1, IBEX_DEV_GPIO, - IBEX_DEV_SPI, IBEX_DEV_I2C, IBEX_DEV_PATTGEN, IBEX_DEV_TIMER, @@ -88,6 +96,10 @@ enum { enum { IBEX_TIMER_TIMEREXPIRED0_0 = 126, + IBEX_SPI_HOST1_SPI_EVENT_IRQ = 153, + IBEX_SPI_HOST1_ERR_IRQ = 152, + IBEX_SPI_HOST0_SPI_EVENT_IRQ = 151, + IBEX_SPI_HOST0_ERR_IRQ = 150, IBEX_UART0_RX_PARITY_ERR_IRQ = 8, IBEX_UART0_RX_TIMEOUT_IRQ = 7, IBEX_UART0_RX_BREAK_ERR_IRQ = 6, -- 2.35.1