diff options
| author | Bin Meng <bin.meng@windriver.com> | 2020-09-01 09:39:05 +0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2020-09-09 15:54:18 -0700 |
| commit | 7124e27bb8ac16b6aae0e9cd30fb19385430dbb5 (patch) | |
| tree | 6151fdeb19cee84f67b50c59d19349068f515728 /hw/riscv | |
| parent | 97ba42230b28636e02ab0af77738bb247e051dd4 (diff) | |
hw/riscv: microchip_pfsoc: Connect a DMA controller
On the Icicle Kit board, the HSS firmware utilizes the on-chip DMA
controller to move the 2nd stage bootloader in the system memory.
Let's connect a DMA controller to Microchip PolarFire SoC.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <1598924352-89526-11-git-send-email-bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'hw/riscv')
| -rw-r--r-- | hw/riscv/Kconfig | 1 | ||||
| -rw-r--r-- | hw/riscv/microchip_pfsoc.c | 15 |
2 files changed, 16 insertions, 0 deletions
diff --git a/hw/riscv/Kconfig b/hw/riscv/Kconfig index 7412db9ad7..9032cb0cbd 100644 --- a/hw/riscv/Kconfig +++ b/hw/riscv/Kconfig @@ -55,4 +55,5 @@ config MICROCHIP_PFSOC select SIFIVE select UNIMP select MCHP_PFSOC_MMUART + select SIFIVE_PDMA select CADENCE_SDHCI diff --git a/hw/riscv/microchip_pfsoc.c b/hw/riscv/microchip_pfsoc.c index 0b2e9ca175..d8ec973958 100644 --- a/hw/riscv/microchip_pfsoc.c +++ b/hw/riscv/microchip_pfsoc.c @@ -13,6 +13,7 @@ * 2) eNVM (Embedded Non-Volatile Memory) * 3) MMUARTs (Multi-Mode UART) * 4) Cadence eMMC/SDHC controller and an SD card connected to it + * 5) SiFive Platform DMA (Direct Memory Access Controller) * * This board currently generates devicetree dynamically that indicates at least * two harts and up to five harts. @@ -71,6 +72,7 @@ static const struct MemmapEntry { [MICROCHIP_PFSOC_BUSERR_UNIT4] = { 0x1704000, 0x1000 }, [MICROCHIP_PFSOC_CLINT] = { 0x2000000, 0x10000 }, [MICROCHIP_PFSOC_L2CC] = { 0x2010000, 0x1000 }, + [MICROCHIP_PFSOC_DMA] = { 0x3000000, 0x100000 }, [MICROCHIP_PFSOC_L2LIM] = { 0x8000000, 0x2000000 }, [MICROCHIP_PFSOC_PLIC] = { 0xc000000, 0x4000000 }, [MICROCHIP_PFSOC_MMUART0] = { 0x20000000, 0x1000 }, @@ -114,6 +116,9 @@ static void microchip_pfsoc_soc_instance_init(Object *obj) TYPE_RISCV_CPU_SIFIVE_U54); qdev_prop_set_uint64(DEVICE(&s->u_cpus), "resetvec", RESET_VECTOR); + object_initialize_child(obj, "dma-controller", &s->dma, + TYPE_SIFIVE_PDMA); + object_initialize_child(obj, "sd-controller", &s->sdhci, TYPE_CADENCE_SDHCI); } @@ -218,6 +223,16 @@ static void microchip_pfsoc_soc_realize(DeviceState *dev, Error **errp) memmap[MICROCHIP_PFSOC_PLIC].size); g_free(plic_hart_config); + /* DMA */ + sysbus_realize(SYS_BUS_DEVICE(&s->dma), errp); + sysbus_mmio_map(SYS_BUS_DEVICE(&s->dma), 0, + memmap[MICROCHIP_PFSOC_DMA].base); + for (i = 0; i < SIFIVE_PDMA_IRQS; i++) { + sysbus_connect_irq(SYS_BUS_DEVICE(&s->dma), i, + qdev_get_gpio_in(DEVICE(s->plic), + MICROCHIP_PFSOC_DMA_IRQ0 + i)); + } + /* SYSREG */ create_unimplemented_device("microchip.pfsoc.sysreg", memmap[MICROCHIP_PFSOC_SYSREG].base, |