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| author | Rayhan Faizel <rayhan.faizel@gmail.com> | 2024-01-30 03:48:08 +0530 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2024-02-02 13:51:59 +0000 |
| commit | f09c2b7ba9908714a3e2f1decd989462536cf731 (patch) | |
| tree | a381c8fb67ab0f1f9470882b6a8e23b148707e03 /hw/arm | |
| parent | 28004fb741343b77b1044a0f01d27d8b36b59651 (diff) | |
| download | qemu-f09c2b7ba9908714a3e2f1decd989462536cf731.zip qemu-f09c2b7ba9908714a3e2f1decd989462536cf731.tar.gz qemu-f09c2b7ba9908714a3e2f1decd989462536cf731.tar.bz2 | |
hw/arm: Connect SPI Controller to BCM2835
This patch will allow the SPI controller to be accessible from BCM2835 based
boards as SPI0. SPI driver is usually disabled by default and config.txt does
not work.
Instead, dtmerge can be used to apply spi=on on a bcm2835 dtb file.
Signed-off-by: Rayhan Faizel <rayhan.faizel@gmail.com>
Message-id: 20240129221807.2983148-3-rayhan.faizel@gmail.com
[PMM: indent tweak]
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/Kconfig | 1 | ||||
| -rw-r--r-- | hw/arm/bcm2835_peripherals.c | 17 |
2 files changed, 17 insertions, 1 deletions
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index db08a00..980b14d 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -429,6 +429,7 @@ config RASPI select PL011 # UART select SDHCI select USB_DWC2 + select BCM2835_SPI config STM32F100_SOC bool diff --git a/hw/arm/bcm2835_peripherals.c b/hw/arm/bcm2835_peripherals.c index 0233038..d5573fd 100644 --- a/hw/arm/bcm2835_peripherals.c +++ b/hw/arm/bcm2835_peripherals.c @@ -144,6 +144,10 @@ static void bcm2835_peripherals_init(Object *obj) /* Power Management */ object_initialize_child(obj, "powermgt", &s->powermgt, TYPE_BCM2835_POWERMGT); + + /* SPI */ + object_initialize_child(obj, "bcm2835-spi0", &s->spi[0], + TYPE_BCM2835_SPI); } static void bcm2835_peripherals_realize(DeviceState *dev, Error **errp) @@ -402,11 +406,22 @@ static void bcm2835_peripherals_realize(DeviceState *dev, Error **errp) memory_region_add_subregion(&s->peri_mr, PM_OFFSET, sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->powermgt), 0)); + /* SPI */ + if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[0]), errp)) { + return; + } + + memory_region_add_subregion(&s->peri_mr, SPI0_OFFSET, + sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->spi[0]), 0)); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->spi[0]), 0, + qdev_get_gpio_in_named(DEVICE(&s->ic), + BCM2835_IC_GPU_IRQ, + INTERRUPT_SPI)); + create_unimp(s, &s->txp, "bcm2835-txp", TXP_OFFSET, 0x1000); create_unimp(s, &s->armtmr, "bcm2835-sp804", ARMCTRL_TIMER0_1_OFFSET, 0x40); create_unimp(s, &s->i2s, "bcm2835-i2s", I2S_OFFSET, 0x100); create_unimp(s, &s->smi, "bcm2835-smi", SMI_OFFSET, 0x100); - create_unimp(s, &s->spi[0], "bcm2835-spi0", SPI0_OFFSET, 0x20); create_unimp(s, &s->bscsl, "bcm2835-spis", BSC_SL_OFFSET, 0x100); create_unimp(s, &s->i2c[0], "bcm2835-i2c0", BSC0_OFFSET, 0x20); create_unimp(s, &s->i2c[1], "bcm2835-i2c1", BSC1_OFFSET, 0x20); |