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author | Guenter Roeck <linux@roeck-us.net> | 2019-05-23 14:47:44 +0100 |
---|---|---|
committer | Peter Maydell <peter.maydell@linaro.org> | 2019-05-23 14:47:44 +0100 |
commit | 59520dc65e5ddb7bdc1a8b7bedd4b58eb76b068b (patch) | |
tree | facafa692bb3802a3f4712f59b886adafa47309f /hw/arm | |
parent | e12a0dd28d07be556a1ce1543a9c1e281f931e8c (diff) | |
download | qemu-59520dc65e5ddb7bdc1a8b7bedd4b58eb76b068b.zip qemu-59520dc65e5ddb7bdc1a8b7bedd4b58eb76b068b.tar.gz qemu-59520dc65e5ddb7bdc1a8b7bedd4b58eb76b068b.tar.bz2 |
hw/arm/exynos4210: Add DMA support for the Exynos4210
QEMU already supports pl330. Instantiate it for Exynos4210.
Relevant part of Linux arch/arm/boot/dts/exynos4.dtsi:
/ {
soc: soc {
amba {
pdma0: pdma@12680000 {
compatible = "arm,pl330", "arm,primecell";
reg = <0x12680000 0x1000>;
interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_PDMA0>;
clock-names = "apb_pclk";
#dma-cells = <1>;
#dma-channels = <8>;
#dma-requests = <32>;
};
pdma1: pdma@12690000 {
compatible = "arm,pl330", "arm,primecell";
reg = <0x12690000 0x1000>;
interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_PDMA1>;
clock-names = "apb_pclk";
#dma-cells = <1>;
#dma-channels = <8>;
#dma-requests = <32>;
};
mdma1: mdma@12850000 {
compatible = "arm,pl330", "arm,primecell";
reg = <0x12850000 0x1000>;
interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_MDMA>;
clock-names = "apb_pclk";
#dma-cells = <1>;
#dma-channels = <8>;
#dma-requests = <1>;
};
};
};
};
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190520214342.13709-4-philmd@redhat.com
[PMD: Do not set default qdev properties, create the controllers in the SoC
rather than the board (Peter Maydell), add dtsi in commit message]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/arm')
-rw-r--r-- | hw/arm/exynos4210.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/hw/arm/exynos4210.c b/hw/arm/exynos4210.c index 0bf6113..f942ed2 100644 --- a/hw/arm/exynos4210.c +++ b/hw/arm/exynos4210.c @@ -96,6 +96,11 @@ /* EHCI */ #define EXYNOS4210_EHCI_BASE_ADDR 0x12580000 +/* DMA */ +#define EXYNOS4210_PL330_BASE0_ADDR 0x12680000 +#define EXYNOS4210_PL330_BASE1_ADDR 0x12690000 +#define EXYNOS4210_PL330_BASE2_ADDR 0x12850000 + static uint8_t chipid_and_omr[] = { 0x11, 0x02, 0x21, 0x43, 0x09, 0x00, 0x00, 0x00 }; @@ -160,6 +165,19 @@ static uint64_t exynos4210_calc_affinity(int cpu) return (0x9 << ARM_AFF1_SHIFT) | cpu; } +static void pl330_create(uint32_t base, qemu_irq irq, int nreq) +{ + SysBusDevice *busdev; + DeviceState *dev; + + dev = qdev_create(NULL, "pl330"); + qdev_prop_set_uint8(dev, "num_periph_req", nreq); + qdev_init_nofail(dev); + busdev = SYS_BUS_DEVICE(dev); + sysbus_mmio_map(busdev, 0, base); + sysbus_connect_irq(busdev, 0, irq); +} + Exynos4210State *exynos4210_init(MemoryRegion *system_mem) { Exynos4210State *s = g_new0(Exynos4210State, 1); @@ -410,5 +428,13 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem) sysbus_create_simple(TYPE_EXYNOS4210_EHCI, EXYNOS4210_EHCI_BASE_ADDR, s->irq_table[exynos4210_get_irq(28, 3)]); + /*** DMA controllers ***/ + pl330_create(EXYNOS4210_PL330_BASE0_ADDR, + qemu_irq_invert(s->irq_table[exynos4210_get_irq(35, 1)]), 32); + pl330_create(EXYNOS4210_PL330_BASE1_ADDR, + qemu_irq_invert(s->irq_table[exynos4210_get_irq(36, 1)]), 32); + pl330_create(EXYNOS4210_PL330_BASE2_ADDR, + qemu_irq_invert(s->irq_table[exynos4210_get_irq(34, 1)]), 1); + return s; } |