i.MX: Add SOC support for i.MX25

    For now we support the following devices:
      * CPU: ARM926
      * Interrupt Controller: AVIC
      * CCM
      * UART x 5
      * EPIT x 2
      * GPT x 4
      * FEC
      * I2C x 3

Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 62218bfa90f9101f79098e768c3d58bd92dcb7f3.1441057361.git.jcd@tribudubois.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

2 files changed, 274 insertions, 0 deletions

diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
index 2fbe344149..b83aaca01e 100644
--- a/hw/arm/Makefile.objs
+++ b/hw/arm/Makefile.objs
@@ -13,4 +13,5 @@ obj-y += omap1.o omap2.o strongarm.o
 obj-$(CONFIG_ALLWINNER_A10) += allwinner-a10.o cubieboard.o
 obj-$(CONFIG_STM32F205_SOC) += stm32f205_soc.o
 obj-$(CONFIG_XLNX_ZYNQMP) += xlnx-zynqmp.o xlnx-ep108.o
+obj-$(CONFIG_FSL_IMX25) += fsl-imx25.o
 obj-$(CONFIG_FSL_IMX31) += fsl-imx31.o kzm.o
diff --git a/hw/arm/fsl-imx25.c b/hw/arm/fsl-imx25.c
new file mode 100644
index 0000000000..6d157c9486
--- /dev/null
+++ b/hw/arm/fsl-imx25.c
@@ -0,0 +1,273 @@
+/*
+ * Copyright (c) 2013 Jean-Christophe Dubois <jcd@tribudubois.net>
+ *
+ * i.MX25 SOC emulation.
+ *
+ * Based on hw/arm/xlnx-zynqmp.c
+ *
+ * Copyright (C) 2015 Xilinx Inc
+ * Written by Peter Crosthwaite <peter.crosthwaite@xilinx.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the
+ *  Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "hw/arm/fsl-imx25.h"
+#include "sysemu/sysemu.h"
+#include "exec/address-spaces.h"
+#include "hw/boards.h"
+#include "sysemu/char.h"
+
+static void fsl_imx25_init(Object *obj)
+{
+    FslIMX25State *s = FSL_IMX25(obj);
+    int i;
+
+    object_initialize(&s->cpu, sizeof(s->cpu), "arm926-" TYPE_ARM_CPU);
+
+    object_initialize(&s->avic, sizeof(s->avic), TYPE_IMX_AVIC);
+    qdev_set_parent_bus(DEVICE(&s->avic), sysbus_get_default());
+
+    object_initialize(&s->ccm, sizeof(s->ccm), TYPE_IMX_CCM);
+    qdev_set_parent_bus(DEVICE(&s->ccm), sysbus_get_default());
+
+    for (i = 0; i < FSL_IMX25_NUM_UARTS; i++) {
+        object_initialize(&s->uart[i], sizeof(s->uart[i]), TYPE_IMX_SERIAL);
+        qdev_set_parent_bus(DEVICE(&s->uart[i]), sysbus_get_default());
+    }
+
+    for (i = 0; i < FSL_IMX25_NUM_GPTS; i++) {
+        object_initialize(&s->gpt[i], sizeof(s->gpt[i]), TYPE_IMX_GPT);
+        qdev_set_parent_bus(DEVICE(&s->gpt[i]), sysbus_get_default());
+    }
+
+    for (i = 0; i < FSL_IMX25_NUM_EPITS; i++) {
+        object_initialize(&s->epit[i], sizeof(s->epit[i]), TYPE_IMX_EPIT);
+        qdev_set_parent_bus(DEVICE(&s->epit[i]), sysbus_get_default());
+    }
+
+    object_initialize(&s->fec, sizeof(s->fec), TYPE_IMX_FEC);
+    qdev_set_parent_bus(DEVICE(&s->fec), sysbus_get_default());
+
+    for (i = 0; i < FSL_IMX25_NUM_I2CS; i++) {
+        object_initialize(&s->i2c[i], sizeof(s->i2c[i]), TYPE_IMX_I2C);
+        qdev_set_parent_bus(DEVICE(&s->i2c[i]), sysbus_get_default());
+    }
+}
+
+static void fsl_imx25_realize(DeviceState *dev, Error **errp)
+{
+    FslIMX25State *s = FSL_IMX25(dev);
+    uint8_t i;
+    Error *err = NULL;
+
+    object_property_set_bool(OBJECT(&s->cpu), true, "realized", &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+
+    object_property_set_bool(OBJECT(&s->avic), true, "realized", &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->avic), 0, FSL_IMX25_AVIC_ADDR);
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 0,
+                       qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_IRQ));
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 1,
+                       qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_FIQ));
+
+    object_property_set_bool(OBJECT(&s->ccm), true, "realized", &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccm), 0, FSL_IMX25_CCM_ADDR);
+
+    /* Initialize all UARTs */
+    for (i = 0; i < FSL_IMX25_NUM_UARTS; i++) {
+        static const struct {
+            hwaddr addr;
+            unsigned int irq;
+        } serial_table[FSL_IMX25_NUM_UARTS] = {
+            { FSL_IMX25_UART1_ADDR, FSL_IMX25_UART1_IRQ },
+            { FSL_IMX25_UART2_ADDR, FSL_IMX25_UART2_IRQ },
+            { FSL_IMX25_UART3_ADDR, FSL_IMX25_UART3_IRQ },
+            { FSL_IMX25_UART4_ADDR, FSL_IMX25_UART4_IRQ },
+            { FSL_IMX25_UART5_ADDR, FSL_IMX25_UART5_IRQ }
+        };
+
+        if (i < MAX_SERIAL_PORTS) {
+            CharDriverState *chr;
+
+            chr = serial_hds[i];
+
+            if (!chr) {
+                char label[20];
+                snprintf(label, sizeof(label), "imx31.uart%d", i);
+                chr = qemu_chr_new(label, "null", NULL);
+            }
+
+            qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", chr);
+        }
+
+        object_property_set_bool(OBJECT(&s->uart[i]), true, "realized", &err);
+        if (err) {
+            error_propagate(errp, err);
+            return;
+        }
+        sysbus_mmio_map(SYS_BUS_DEVICE(&s->uart[i]), 0, serial_table[i].addr);
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart[i]), 0,
+                           qdev_get_gpio_in(DEVICE(&s->avic),
+                                            serial_table[i].irq));
+    }
+
+    /* Initialize all GPT timers */
+    for (i = 0; i < FSL_IMX25_NUM_GPTS; i++) {
+        static const struct {
+            hwaddr addr;
+            unsigned int irq;
+        } gpt_table[FSL_IMX25_NUM_GPTS] = {
+            { FSL_IMX25_GPT1_ADDR, FSL_IMX25_GPT1_IRQ },
+            { FSL_IMX25_GPT2_ADDR, FSL_IMX25_GPT2_IRQ },
+            { FSL_IMX25_GPT3_ADDR, FSL_IMX25_GPT3_IRQ },
+            { FSL_IMX25_GPT4_ADDR, FSL_IMX25_GPT4_IRQ }
+        };
+
+        s->gpt[i].ccm = DEVICE(&s->ccm);
+
+        object_property_set_bool(OBJECT(&s->gpt[i]), true, "realized", &err);
+        if (err) {
+            error_propagate(errp, err);
+            return;
+        }
+        sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpt[i]), 0, gpt_table[i].addr);
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpt[i]), 0,
+                           qdev_get_gpio_in(DEVICE(&s->avic),
+                                            gpt_table[i].irq));
+    }
+
+    /* Initialize all EPIT timers */
+    for (i = 0; i < FSL_IMX25_NUM_EPITS; i++) {
+        static const struct {
+            hwaddr addr;
+            unsigned int irq;
+        } epit_table[FSL_IMX25_NUM_EPITS] = {
+            { FSL_IMX25_EPIT1_ADDR, FSL_IMX25_EPIT1_IRQ },
+            { FSL_IMX25_EPIT2_ADDR, FSL_IMX25_EPIT2_IRQ }
+        };
+
+        s->epit[i].ccm = DEVICE(&s->ccm);
+
+        object_property_set_bool(OBJECT(&s->epit[i]), true, "realized", &err);
+        if (err) {
+            error_propagate(errp, err);
+            return;
+        }
+        sysbus_mmio_map(SYS_BUS_DEVICE(&s->epit[i]), 0, epit_table[i].addr);
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->epit[i]), 0,
+                           qdev_get_gpio_in(DEVICE(&s->avic),
+                                            epit_table[i].irq));
+    }
+
+    qdev_set_nic_properties(DEVICE(&s->fec), &nd_table[0]);
+    object_property_set_bool(OBJECT(&s->fec), true, "realized", &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->fec), 0, FSL_IMX25_FEC_ADDR);
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->fec), 0,
+                       qdev_get_gpio_in(DEVICE(&s->avic), FSL_IMX25_FEC_IRQ));
+
+
+    /* Initialize all I2C */
+    for (i = 0; i < FSL_IMX25_NUM_I2CS; i++) {
+        static const struct {
+            hwaddr addr;
+            unsigned int irq;
+        } i2c_table[FSL_IMX25_NUM_I2CS] = {
+            { FSL_IMX25_I2C1_ADDR, FSL_IMX25_I2C1_IRQ },
+            { FSL_IMX25_I2C2_ADDR, FSL_IMX25_I2C2_IRQ },
+            { FSL_IMX25_I2C3_ADDR, FSL_IMX25_I2C3_IRQ }
+        };
+
+        object_property_set_bool(OBJECT(&s->i2c[i]), true, "realized", &err);
+        if (err) {
+            error_propagate(errp, err);
+            return;
+        }
+        sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c[i]), 0, i2c_table[i].addr);
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c[i]), 0,
+                           qdev_get_gpio_in(DEVICE(&s->avic),
+                                            i2c_table[i].irq));
+    }
+
+    /* initialize 2 x 16 KB ROM */
+    memory_region_init_rom_device(&s->rom[0], NULL, NULL, NULL,
+                                  "imx25.rom0", FSL_IMX25_ROM0_SIZE, &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+    memory_region_add_subregion(get_system_memory(), FSL_IMX25_ROM0_ADDR,
+                                &s->rom[0]);
+    memory_region_init_rom_device(&s->rom[1], NULL, NULL, NULL,
+                                  "imx25.rom1", FSL_IMX25_ROM1_SIZE, &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+    memory_region_add_subregion(get_system_memory(), FSL_IMX25_ROM1_ADDR,
+                                &s->rom[1]);
+
+    /* initialize internal RAM (128 KB) */
+    memory_region_init_ram(&s->iram, NULL, "imx25.iram", FSL_IMX25_IRAM_SIZE,
+                           &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+    memory_region_add_subregion(get_system_memory(), FSL_IMX25_IRAM_ADDR,
+                                &s->iram);
+    vmstate_register_ram_global(&s->iram);
+
+    /* internal RAM (128 KB) is aliased over 128 MB - 128 KB */
+    memory_region_init_alias(&s->iram_alias, NULL, "imx25.iram_alias",
+                             &s->iram, 0, FSL_IMX25_IRAM_ALIAS_SIZE);
+    memory_region_add_subregion(get_system_memory(), FSL_IMX25_IRAM_ALIAS_ADDR,
+                                &s->iram_alias);
+}
+
+static void fsl_imx25_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+
+    dc->realize = fsl_imx25_realize;
+}
+
+static const TypeInfo fsl_imx25_type_info = {
+    .name = TYPE_FSL_IMX25,
+    .parent = TYPE_DEVICE,
+    .instance_size = sizeof(FslIMX25State),
+    .instance_init = fsl_imx25_init,
+    .class_init = fsl_imx25_class_init,
+};
+
+static void fsl_imx25_register_types(void)
+{
+    type_register_static(&fsl_imx25_type_info);
+}
+
+type_init(fsl_imx25_register_types)