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From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 36/43] hw/arm/fsl-imx8mp: Add GPIO controllers
Date: Tue, 25 Feb 2025 18:05:02 +0000
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From: Bernhard Beschow <shentey@gmail.com>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-id: 20250223114708.1780-10-shentey@gmail.com
[PMM: drop static const from gpio_table for GCC 7.5]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 docs/system/arm/imx8mp-evk.rst |  1 +
 include/hw/arm/fsl-imx8mp.h    | 14 +++++++++
 hw/arm/fsl-imx8mp.c            | 55 ++++++++++++++++++++++++++++++++++
 3 files changed, 70 insertions(+)

diff --git a/docs/system/arm/imx8mp-evk.rst b/docs/system/arm/imx8mp-evk.rst
index 18a8fdd2785..37d3630d09c 100644
--- a/docs/system/arm/imx8mp-evk.rst
+++ b/docs/system/arm/imx8mp-evk.rst
@@ -14,6 +14,7 @@ The ``imx8mp-evk`` machine implements the following devic=
es:
  * 4 UARTs
  * 3 USDHC Storage Controllers
  * 1 Designware PCI Express Controller
+ * 5 GPIO Controllers
  * Secure Non-Volatile Storage (SNVS) including an RTC
  * Clock Tree
=20
diff --git a/include/hw/arm/fsl-imx8mp.h b/include/hw/arm/fsl-imx8mp.h
index 4c70c887a89..18ea52d0839 100644
--- a/include/hw/arm/fsl-imx8mp.h
+++ b/include/hw/arm/fsl-imx8mp.h
@@ -11,6 +11,7 @@
=20
 #include "cpu.h"
 #include "hw/char/imx_serial.h"
+#include "hw/gpio/imx_gpio.h"
 #include "hw/intc/arm_gicv3_common.h"
 #include "hw/misc/imx7_snvs.h"
 #include "hw/misc/imx8mp_analog.h"
@@ -29,6 +30,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(FslImx8mpState, FSL_IMX8MP)
=20
 enum FslImx8mpConfiguration {
     FSL_IMX8MP_NUM_CPUS         =3D 4,
+    FSL_IMX8MP_NUM_GPIOS        =3D 5,
     FSL_IMX8MP_NUM_IRQS         =3D 160,
     FSL_IMX8MP_NUM_UARTS        =3D 4,
     FSL_IMX8MP_NUM_USDHCS       =3D 3,
@@ -39,6 +41,7 @@ struct FslImx8mpState {
=20
     ARMCPU             cpu[FSL_IMX8MP_NUM_CPUS];
     GICv3State         gic;
+    IMXGPIOState       gpio[FSL_IMX8MP_NUM_GPIOS];
     IMX8MPCCMState     ccm;
     IMX8MPAnalogState  analog;
     IMX7SNVSState      snvs;
@@ -202,6 +205,17 @@ enum FslImx8mpIrqs {
     FSL_IMX8MP_UART5_IRQ    =3D 30,
     FSL_IMX8MP_UART6_IRQ    =3D 16,
=20
+    FSL_IMX8MP_GPIO1_LOW_IRQ  =3D 64,
+    FSL_IMX8MP_GPIO1_HIGH_IRQ =3D 65,
+    FSL_IMX8MP_GPIO2_LOW_IRQ  =3D 66,
+    FSL_IMX8MP_GPIO2_HIGH_IRQ =3D 67,
+    FSL_IMX8MP_GPIO3_LOW_IRQ  =3D 68,
+    FSL_IMX8MP_GPIO3_HIGH_IRQ =3D 69,
+    FSL_IMX8MP_GPIO4_LOW_IRQ  =3D 70,
+    FSL_IMX8MP_GPIO4_HIGH_IRQ =3D 71,
+    FSL_IMX8MP_GPIO5_LOW_IRQ  =3D 72,
+    FSL_IMX8MP_GPIO5_HIGH_IRQ =3D 73,
+
     FSL_IMX8MP_PCI_INTA_IRQ =3D 126,
     FSL_IMX8MP_PCI_INTB_IRQ =3D 125,
     FSL_IMX8MP_PCI_INTC_IRQ =3D 124,
diff --git a/hw/arm/fsl-imx8mp.c b/hw/arm/fsl-imx8mp.c
index 1ee681ac1d7..541e4ab5b63 100644
--- a/hw/arm/fsl-imx8mp.c
+++ b/hw/arm/fsl-imx8mp.c
@@ -208,6 +208,11 @@ static void fsl_imx8mp_init(Object *obj)
         object_initialize_child(obj, name, &s->uart[i], TYPE_IMX_SERIAL);
     }
=20
+    for (i =3D 0; i < FSL_IMX8MP_NUM_GPIOS; i++) {
+        g_autofree char *name =3D g_strdup_printf("gpio%d", i + 1);
+        object_initialize_child(obj, name, &s->gpio[i], TYPE_IMX_GPIO);
+    }
+
     for (i =3D 0; i < FSL_IMX8MP_NUM_USDHCS; i++) {
         g_autofree char *name =3D g_strdup_printf("usdhc%d", i + 1);
         object_initialize_child(obj, name, &s->usdhc[i], TYPE_IMX_USDHC);
@@ -355,6 +360,55 @@ static void fsl_imx8mp_realize(DeviceState *dev, Error=
 **errp)
                            qdev_get_gpio_in(gicdev, serial_table[i].irq));
     }
=20
+    /* GPIOs */
+    for (i =3D 0; i < FSL_IMX8MP_NUM_GPIOS; i++) {
+        struct {
+            hwaddr addr;
+            unsigned int irq_low;
+            unsigned int irq_high;
+        } gpio_table[FSL_IMX8MP_NUM_GPIOS] =3D {
+            {
+                fsl_imx8mp_memmap[FSL_IMX8MP_GPIO1].addr,
+                FSL_IMX8MP_GPIO1_LOW_IRQ,
+                FSL_IMX8MP_GPIO1_HIGH_IRQ
+            },
+            {
+                fsl_imx8mp_memmap[FSL_IMX8MP_GPIO2].addr,
+                FSL_IMX8MP_GPIO2_LOW_IRQ,
+                FSL_IMX8MP_GPIO2_HIGH_IRQ
+            },
+            {
+                fsl_imx8mp_memmap[FSL_IMX8MP_GPIO3].addr,
+                FSL_IMX8MP_GPIO3_LOW_IRQ,
+                FSL_IMX8MP_GPIO3_HIGH_IRQ
+            },
+            {
+                fsl_imx8mp_memmap[FSL_IMX8MP_GPIO4].addr,
+                FSL_IMX8MP_GPIO4_LOW_IRQ,
+                FSL_IMX8MP_GPIO4_HIGH_IRQ
+            },
+            {
+                fsl_imx8mp_memmap[FSL_IMX8MP_GPIO5].addr,
+                FSL_IMX8MP_GPIO5_LOW_IRQ,
+                FSL_IMX8MP_GPIO5_HIGH_IRQ
+            },
+        };
+
+        object_property_set_bool(OBJECT(&s->gpio[i]), "has-edge-sel", true,
+                                 &error_abort);
+        object_property_set_bool(OBJECT(&s->gpio[i]), "has-upper-pin-irq",
+                                 true, &error_abort);
+        if (!sysbus_realize(SYS_BUS_DEVICE(&s->gpio[i]), errp)) {
+            return;
+        }
+
+        sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio[i]), 0, gpio_table[i].addr=
);
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio[i]), 0,
+                           qdev_get_gpio_in(gicdev, gpio_table[i].irq_low)=
);
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio[i]), 1,
+                           qdev_get_gpio_in(gicdev, gpio_table[i].irq_high=
));
+    }
+
     /* USDHCs */
     for (i =3D 0; i < FSL_IMX8MP_NUM_USDHCS; i++) {
         struct {
@@ -415,6 +469,7 @@ static void fsl_imx8mp_realize(DeviceState *dev, Error =
**errp)
         case FSL_IMX8MP_CCM:
         case FSL_IMX8MP_GIC_DIST:
         case FSL_IMX8MP_GIC_REDIST:
+        case FSL_IMX8MP_GPIO1 ... FSL_IMX8MP_GPIO5:
         case FSL_IMX8MP_PCIE1:
         case FSL_IMX8MP_PCIE_PHY1:
         case FSL_IMX8MP_RAM:
--=20
2.43.0