[Qemu-devel] [PATCH v13 13/19] i.MX: KZM now uses the standalone i.MX31 SOC support

[Jean-Christophe Dubois <jcd@tribudubois.net>]

Tested by booting a minimal Linux system on the emulated platform

Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
---

Changes since v1: 
    * not present on v1
    
Changes since v2: 
    * not present on v2
    
Changes since v3: 
    * not present on v3
    
Changes since v4: 
    * not present on v4

Changes since v5:
    * not present on v5

Changes since v6:
    * not present on v6 

Changes since v7:
    * update KZM target to use new emulators

Changes since v8:
    * update KZM to user i.MX31 SOC
    * rework SDRAM memory initialisation

Changes since v9:
    * remove all Qdev construction helper fucntions.

Changes since v10:
    * use memory_region_allocate_system_memory()
    * rework of memory initialization loop.
    * remove all Qdev construction helper in device files.

Changes since v10:
    * no change.

Changes since v11:
    * no change.

Changes since v12:
    * no change.

 hw/arm/Makefile.objs |   4 +-
 hw/arm/kzm.c         | 206 +++++++++++++++++++++++++--------------------------
 hw/char/imx_serial.c |  35 ---------
 hw/timer/imx_epit.c  |  11 ---
 hw/timer/imx_gpt.c   |  11 ---
 include/hw/arm/imx.h |  26 -------
 6 files changed, 105 insertions(+), 188 deletions(-)
 delete mode 100644 include/hw/arm/imx.h

diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
index f35f731..2fbe344 100644
--- a/hw/arm/Makefile.objs
+++ b/hw/arm/Makefile.objs
@@ -1,6 +1,6 @@
 obj-y += boot.o collie.o exynos4_boards.o gumstix.o highbank.o
 obj-$(CONFIG_DIGIC) += digic_boards.o
-obj-y += integratorcp.o kzm.o mainstone.o musicpal.o nseries.o
+obj-y += integratorcp.o mainstone.o musicpal.o nseries.o
 obj-y += omap_sx1.o palm.o realview.o spitz.o stellaris.o
 obj-y += tosa.o versatilepb.o vexpress.o virt.o xilinx_zynq.o z2.o
 obj-$(CONFIG_ACPI) += virt-acpi-build.o
@@ -13,4 +13,4 @@ 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_IMX31) += fsl-imx31.o
+obj-$(CONFIG_FSL_IMX31) += fsl-imx31.o kzm.o
diff --git a/hw/arm/kzm.c b/hw/arm/kzm.c
index d7af230..51f6194 100644
--- a/hw/arm/kzm.c
+++ b/hw/arm/kzm.c
@@ -13,131 +13,131 @@
  * i.MX31 SoC
  */
 
-#include "hw/sysbus.h"
+#include "hw/arm/fsl-imx31.h"
+#include "hw/boards.h"
+#include "qemu/error-report.h"
 #include "exec/address-spaces.h"
-#include "hw/hw.h"
-#include "hw/arm/arm.h"
-#include "hw/devices.h"
 #include "net/net.h"
-#include "sysemu/sysemu.h"
-#include "hw/boards.h"
+#include "hw/devices.h"
 #include "hw/char/serial.h"
-#include "hw/intc/imx_avic.h"
-#include "hw/arm/imx.h"
-
-    /* Memory map for Kzm Emulation Baseboard:
-     * 0x00000000-0x00003fff 16k secure ROM       IGNORED
-     * 0x00004000-0x00407fff Reserved             IGNORED
-     * 0x00404000-0x00407fff ROM                  IGNORED
-     * 0x00408000-0x0fffffff Reserved             IGNORED
-     * 0x10000000-0x1fffbfff RAM aliasing         IGNORED
-     * 0x1fffc000-0x1fffffff RAM                  EMULATED
-     * 0x20000000-0x2fffffff Reserved             IGNORED
-     * 0x30000000-0x7fffffff I.MX31 Internal Register Space
-     *   0x43f00000 IO_AREA0
-     *   0x43f90000 UART1                         EMULATED
-     *   0x43f94000 UART2                         EMULATED
-     *   0x68000000 AVIC                          EMULATED
-     *   0x53f80000 CCM                           EMULATED
-     *   0x53f94000 PIT 1                         EMULATED
-     *   0x53f98000 PIT 2                         EMULATED
-     *   0x53f90000 GPT                           EMULATED
-     * 0x80000000-0x87ffffff RAM                  EMULATED
-     * 0x88000000-0x8fffffff RAM Aliasing         EMULATED
-     * 0xa0000000-0xafffffff NAND Flash           IGNORED
-     * 0xb0000000-0xb3ffffff Unavailable          IGNORED
-     * 0xb4000000-0xb4000fff 8-bit free space     IGNORED
-     * 0xb4001000-0xb400100f Board control        IGNORED
-     *  0xb4001003           DIP switch
-     * 0xb4001010-0xb400101f 7-segment LED        IGNORED
-     * 0xb4001020-0xb400102f LED                  IGNORED
-     * 0xb4001030-0xb400103f LED                  IGNORED
-     * 0xb4001040-0xb400104f FPGA, UART           EMULATED
-     * 0xb4001050-0xb400105f FPGA, UART           EMULATED
-     * 0xb4001060-0xb40fffff FPGA                 IGNORED
-     * 0xb6000000-0xb61fffff LAN controller       EMULATED
-     * 0xb6200000-0xb62fffff FPGA NAND Controller IGNORED
-     * 0xb6300000-0xb7ffffff Free                 IGNORED
-     * 0xb8000000-0xb8004fff Memory control registers IGNORED
-     * 0xc0000000-0xc3ffffff PCMCIA/CF            IGNORED
-     * 0xc4000000-0xffffffff Reserved             IGNORED
-     */
-
-#define KZM_RAMADDRESS (0x80000000)
-#define KZM_FPGA       (0xb4001040)
+#include "sysemu/qtest.h"
+
+/* Memory map for Kzm Emulation Baseboard:
+ * 0x00000000-0x7fffffff See i.MX31 SOC for support
+ * 0x80000000-0x8fffffff RAM                  EMULATED
+ * 0x90000000-0x9fffffff RAM                  EMULATED
+ * 0xa0000000-0xafffffff Flash                IGNORED
+ * 0xb0000000-0xb3ffffff Unavailable          IGNORED
+ * 0xb4000000-0xb4000fff 8-bit free space     IGNORED
+ * 0xb4001000-0xb400100f Board control        IGNORED
+ *  0xb4001003           DIP switch
+ * 0xb4001010-0xb400101f 7-segment LED        IGNORED
+ * 0xb4001020-0xb400102f LED                  IGNORED
+ * 0xb4001030-0xb400103f LED                  IGNORED
+ * 0xb4001040-0xb400104f FPGA, UART           EMULATED
+ * 0xb4001050-0xb400105f FPGA, UART           EMULATED
+ * 0xb4001060-0xb40fffff FPGA                 IGNORED
+ * 0xb6000000-0xb61fffff LAN controller       EMULATED
+ * 0xb6200000-0xb62fffff FPGA NAND Controller IGNORED
+ * 0xb6300000-0xb7ffffff Free                 IGNORED
+ * 0xb8000000-0xb8004fff Memory control registers IGNORED
+ * 0xc0000000-0xc3ffffff PCMCIA/CF            IGNORED
+ * 0xc4000000-0xffffffff Reserved             IGNORED
+ */
+
+typedef struct IMX31Kzm {
+    FslIMX31State soc;
+    MemoryRegion ram[2];
+    MemoryRegion ram_alias;
+} IMX31Kzm;
+
+#define KZM_RAM_ADDR		(FSL_IMX31_SDRAM0_ADDR)
+#define KZM_FPGA_ADDR		(FSL_IMX31_CS4_ADDR + 0x1040)
+#define KZM_LAN9118_ADDR	(FSL_IMX31_CS5_ADDR)
 
 static struct arm_boot_info kzm_binfo = {
-    .loader_start = KZM_RAMADDRESS,
+    .loader_start = KZM_RAM_ADDR,
     .board_id = 1722,
 };
 
 static void kzm_init(MachineState *machine)
 {
-    ram_addr_t ram_size = machine->ram_size;
-    const char *cpu_model = machine->cpu_model;
-    const char *kernel_filename = machine->kernel_filename;
-    const char *kernel_cmdline = machine->kernel_cmdline;
-    const char *initrd_filename = machine->initrd_filename;
-    ARMCPU *cpu;
-    MemoryRegion *address_space_mem = get_system_memory();
-    MemoryRegion *ram = g_new(MemoryRegion, 1);
-    MemoryRegion *sram = g_new(MemoryRegion, 1);
-    MemoryRegion *ram_alias = g_new(MemoryRegion, 1);
-    DeviceState *dev;
-    DeviceState *ccm;
-
-    if (!cpu_model) {
-        cpu_model = "arm1136";
-    }
-
-    cpu = cpu_arm_init(cpu_model);
-    if (!cpu) {
-        fprintf(stderr, "Unable to find CPU definition\n");
+    IMX31Kzm *s = g_new0(IMX31Kzm, 1);
+    Error *err = NULL;
+    unsigned int ram_size;
+    unsigned int i;
+
+    object_initialize(&s->soc, sizeof(s->soc), TYPE_FSL_IMX31);
+    object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc),
+                              &error_abort);
+
+    object_property_set_bool(OBJECT(&s->soc), true, "realized", &err);
+    if (err != NULL) {
+        error_report("%s", error_get_pretty(err));
         exit(1);
     }
 
-    /* On a real system, the first 16k is a `secure boot rom' */
-
-    memory_region_allocate_system_memory(ram, NULL, "kzm.ram", ram_size);
-    memory_region_add_subregion(address_space_mem, KZM_RAMADDRESS, ram);
-
-    memory_region_init_alias(ram_alias, NULL, "ram.alias", ram, 0, ram_size);
-    memory_region_add_subregion(address_space_mem, 0x88000000, ram_alias);
-
-    memory_region_init_ram(sram, NULL, "kzm.sram", 0x4000, &error_abort);
-    memory_region_add_subregion(address_space_mem, 0x1FFFC000, sram);
-
-    dev = sysbus_create_varargs(TYPE_IMX_AVIC, 0x68000000,
-                                qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ),
-                                qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_FIQ),
-                                NULL);
-
-    imx_serial_create(0, 0x43f90000, qdev_get_gpio_in(dev, 45));
-    imx_serial_create(1, 0x43f94000, qdev_get_gpio_in(dev, 32));
-
-    ccm = sysbus_create_simple(TYPE_IMX_CCM, 0x53f80000, NULL);
+    /* Check the amount of memory is compatible with the SOC */
+    if (machine->ram_size > (FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE)) {
+        error_report("WARNING: RAM size " RAM_ADDR_FMT " above max supported, "
+                     "reduced to %x", machine->ram_size,
+                     FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE);
+        machine->ram_size = FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE;
+    }
 
-    imx_timerp_create(0x53f94000, qdev_get_gpio_in(dev, 28), ccm);
-    imx_timerp_create(0x53f98000, qdev_get_gpio_in(dev, 27), ccm);
-    imx_timerg_create(0x53f90000, qdev_get_gpio_in(dev, 29), ccm);
+    /* initialize our memory */
+    for (i=0, ram_size = machine->ram_size; (i<2) && ram_size; i++) {
+        unsigned int size;
+        char ram_name[20];
+        static const struct {
+            hwaddr addr;
+            unsigned int size;
+        } ram[2] = {
+            { FSL_IMX31_SDRAM0_ADDR, FSL_IMX31_SDRAM0_SIZE },
+            { FSL_IMX31_SDRAM1_ADDR, FSL_IMX31_SDRAM1_SIZE },
+        };
+
+	if (ram_size > ram[i].size) {
+            size = ram[i].size;
+	} else {
+            size = ram_size;
+	}
+
+        sprintf(ram_name, "kzm.ram%d", i);
+
+        ram_size -= size;
+
+        memory_region_allocate_system_memory(&s->ram[i], NULL, ram_name, size);
+        memory_region_add_subregion(get_system_memory(), ram[i].addr,
+                                    &s->ram[i]);
+        if (size < ram[i].size) {
+            memory_region_init_alias(&s->ram_alias, NULL, "ram.alias",
+                                     &s->ram[i], 0, ram[i].size - size);
+            memory_region_add_subregion(get_system_memory(),
+                                        ram[i].addr + size, &s->ram_alias);
+        }
+    }
 
     if (nd_table[0].used) {
-        lan9118_init(&nd_table[0], 0xb6000000, qdev_get_gpio_in(dev, 52));
+        lan9118_init(&nd_table[0], KZM_LAN9118_ADDR,
+                     qdev_get_gpio_in(DEVICE(&s->soc.avic), 52));
     }
 
     if (serial_hds[2]) { /* touchscreen */
-        serial_mm_init(address_space_mem, KZM_FPGA+0x10, 0,
-                       qdev_get_gpio_in(dev, 52),
-                       14745600, serial_hds[2],
-                       DEVICE_NATIVE_ENDIAN);
+        serial_mm_init(get_system_memory(), KZM_FPGA_ADDR+0x10, 0,
+                       qdev_get_gpio_in(DEVICE(&s->soc.avic), 52),
+                       14745600, serial_hds[2], DEVICE_NATIVE_ENDIAN);
     }
 
-    kzm_binfo.ram_size = ram_size;
-    kzm_binfo.kernel_filename = kernel_filename;
-    kzm_binfo.kernel_cmdline = kernel_cmdline;
-    kzm_binfo.initrd_filename = initrd_filename;
+    kzm_binfo.ram_size = machine->ram_size;
+    kzm_binfo.kernel_filename = machine->kernel_filename;
+    kzm_binfo.kernel_cmdline = machine->kernel_cmdline;
+    kzm_binfo.initrd_filename = machine->initrd_filename;
     kzm_binfo.nb_cpus = 1;
-    arm_load_kernel(cpu, &kzm_binfo);
+
+    if (!qtest_enabled()) {
+        arm_load_kernel(&s->soc.cpu, &kzm_binfo);
+    }
 }
 
 static QEMUMachine kzm_machine = {
diff --git a/hw/char/imx_serial.c b/hw/char/imx_serial.c
index f9da59f..bc4141b 100644
--- a/hw/char/imx_serial.c
+++ b/hw/char/imx_serial.c
@@ -21,7 +21,6 @@
 #include "hw/char/imx_serial.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/char.h"
-#include "hw/arm/imx.h"
 
 //#define DEBUG_SERIAL 1
 #ifdef DEBUG_SERIAL
@@ -330,40 +329,6 @@ static void imx_serial_init(Object *obj)
     sysbus_init_irq(sbd, &s->irq);
 }
 
-void imx_serial_create(int uart, const hwaddr addr, qemu_irq irq)
-{
-    DeviceState *dev;
-    SysBusDevice *bus;
-    CharDriverState *chr;
-    const char chr_name[] = "serial";
-    char label[ARRAY_SIZE(chr_name) + 1];
-
-    dev = qdev_create(NULL, TYPE_IMX_SERIAL);
-
-    if (uart >= MAX_SERIAL_PORTS) {
-        hw_error("Cannot assign uart %d: QEMU supports only %d ports\n",
-                 uart, MAX_SERIAL_PORTS);
-    }
-    chr = serial_hds[uart];
-    if (!chr) {
-        snprintf(label, ARRAY_SIZE(label), "%s%d", chr_name, uart);
-        chr = qemu_chr_new(label, "null", NULL);
-        if (!(chr)) {
-            hw_error("Can't assign serial port to imx-uart%d.\n", uart);
-        }
-    }
-
-    qdev_prop_set_chr(dev, "chardev", chr);
-    bus = SYS_BUS_DEVICE(dev);
-    qdev_init_nofail(dev);
-    if (addr != (hwaddr)-1) {
-        sysbus_mmio_map(bus, 0, addr);
-    }
-    sysbus_connect_irq(bus, 0, irq);
-
-}
-
-
 static Property imx_serial_properties[] = {
     DEFINE_PROP_CHR("chardev", IMXSerialState, chr),
     DEFINE_PROP_END_OF_LIST(),
diff --git a/hw/timer/imx_epit.c b/hw/timer/imx_epit.c
index 10c5d2b..9649851 100644
--- a/hw/timer/imx_epit.c
+++ b/hw/timer/imx_epit.c
@@ -12,7 +12,6 @@
  *
  */
 
-#include "hw/arm/imx.h"
 #include "hw/timer/imx_epit.h"
 #include "hw/misc/imx_ccm.h"
 #include "qemu/main-loop.h"
@@ -287,16 +286,6 @@ static void imx_epit_cmp(void *opaque)
     imx_epit_update_int(s);
 }
 
-void imx_timerp_create(const hwaddr addr, qemu_irq irq, DeviceState *ccm)
-{
-    IMXEPITState *pp;
-    DeviceState *dev;
-
-    dev = sysbus_create_simple(TYPE_IMX_EPIT, addr, irq);
-    pp = IMX_EPIT(dev);
-    pp->ccm = ccm;
-}
-
 static const MemoryRegionOps imx_epit_ops = {
     .read = imx_epit_read,
     .write = imx_epit_write,
diff --git a/hw/timer/imx_gpt.c b/hw/timer/imx_gpt.c
index 01f802e..4bac67d 100644
--- a/hw/timer/imx_gpt.c
+++ b/hw/timer/imx_gpt.c
@@ -12,7 +12,6 @@
  *
  */
 
-#include "hw/arm/imx.h"
 #include "hw/timer/imx_gpt.h"
 #include "hw/misc/imx_ccm.h"
 #include "qemu/main-loop.h"
@@ -449,16 +448,6 @@ static void imx_gpt_realize(DeviceState *dev, Error **errp)
     s->timer = ptimer_init(bh);
 }
 
-void imx_timerg_create(const hwaddr addr, qemu_irq irq, DeviceState *ccm)
-{
-    IMXGPTState *pp;
-    DeviceState *dev;
-
-    dev = sysbus_create_simple(TYPE_IMX_GPT, addr, irq);
-    pp = IMX_GPT(dev);
-    pp->ccm = ccm;
-}
-
 static void imx_gpt_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
diff --git a/include/hw/arm/imx.h b/include/hw/arm/imx.h
deleted file mode 100644
index b188560..0000000
--- a/include/hw/arm/imx.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * i.MX31 emulation
- *
- * Copyright (C) 2012 Peter Chubb
- * NICTA
- *
- * This code is released under the GPL, version 2.0 or later
- * See the file `../COPYING' for details.
- */
-
-#ifndef IMX_H
-#define IMX_H
-
-#include "hw/misc/imx_ccm.h"
-
-void imx_serial_create(int uart, const hwaddr addr, qemu_irq irq);
-
-void imx_timerp_create(const hwaddr addr,
-                      qemu_irq irq,
-                      DeviceState *ccm);
-void imx_timerg_create(const hwaddr addr,
-                      qemu_irq irq,
-                      DeviceState *ccm);
-
-
-#endif /* IMX_H */
-- 
2.1.4