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hw/arm/exynos4210: Add DMA support for the Exynos4210

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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>
This commit is contained in:
Guenter Roeck
2019-05-23 14:47:44 +01:00
committed by Peter Maydell
parent e12a0dd28d
commit 59520dc65e
1 changed files with 26 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
hw/arm/exynos4210.c
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@@ -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;
}