diff options
| 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 | |
| parent | 28004fb741343b77b1044a0f01d27d8b36b59651 (diff) | |
hw/arm: Connect SPI Controller to BCM2835pull-target-arm-20240202
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>
| -rw-r--r-- | hw/arm/Kconfig | 1 | ||||
| -rw-r--r-- | hw/arm/bcm2835_peripherals.c | 17 | ||||
| -rw-r--r-- | include/hw/arm/bcm2835_peripherals.h | 3 |
3 files changed, 19 insertions, 2 deletions
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index db08a00a45..980b14d58d 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 0233038b95..d5573fd954 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); diff --git a/include/hw/arm/bcm2835_peripherals.h b/include/hw/arm/bcm2835_peripherals.h index d724a2fc28..0203bb79d8 100644 --- a/include/hw/arm/bcm2835_peripherals.h +++ b/include/hw/arm/bcm2835_peripherals.h @@ -31,6 +31,7 @@ #include "hw/gpio/bcm2835_gpio.h" #include "hw/timer/bcm2835_systmr.h" #include "hw/usb/hcd-dwc2.h" +#include "hw/ssi/bcm2835_spi.h" #include "hw/misc/unimp.h" #include "qom/object.h" @@ -66,7 +67,7 @@ struct BCM2835PeripheralState { BCM2835GpioState gpio; Bcm2835ThermalState thermal; UnimplementedDeviceState i2s; - UnimplementedDeviceState spi[1]; + BCM2835SPIState spi[1]; UnimplementedDeviceState i2c[3]; UnimplementedDeviceState otp; UnimplementedDeviceState dbus; |