[PATCH 18/20] hw/rx: Add Tokudenkairo TKDN-RX62N-BRD

[Yoshinori Sato <ysato@users.sourceforge.jp>]

Hardware information.
http://www.tokudenkairo.co.jp/rx62n/
(Japanese)

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 default-configs/rx-softmmu.mak |   1 +
 hw/rx/tkdn-rx62n.c             | 192 +++++++++++++++++++++++++++++++++
 hw/rx/Kconfig                  |   6 ++
 hw/rx/meson.build              |   1 +
 4 files changed, 200 insertions(+)
 create mode 100644 hw/rx/tkdn-rx62n.c

diff --git a/default-configs/rx-softmmu.mak b/default-configs/rx-softmmu.mak
index df2b4e4f42..ea8731d67b 100644
--- a/default-configs/rx-softmmu.mak
+++ b/default-configs/rx-softmmu.mak
@@ -1,3 +1,4 @@
 # Default configuration for rx-softmmu
 
 CONFIG_RX_GDBSIM=y
+CONFIG_TKDN_RX62N=y
diff --git a/hw/rx/tkdn-rx62n.c b/hw/rx/tkdn-rx62n.c
new file mode 100644
index 0000000000..3db0fc8294
--- /dev/null
+++ b/hw/rx/tkdn-rx62n.c
@@ -0,0 +1,192 @@
+/*
+ * Tokushudenshikairo TKDN-RX62N-BRD
+ *
+ * Copyright (c) 2020 Yoshinori Sato
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2 or later, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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 "qemu/osdep.h"
+#include "qemu/cutils.h"
+#include "qapi/error.h"
+#include "qemu-common.h"
+#include "cpu.h"
+#include "hw/hw.h"
+#include "hw/sysbus.h"
+#include "hw/loader.h"
+#include "hw/rx/loader.h"
+#include "hw/qdev-properties.h"
+#include "hw/rx/rx62n.h"
+#include "net/net.h"
+#include "hw/net/mii.h"
+#include "hw/boards.h"
+#include "sysemu/sysemu.h"
+#include "sysemu/qtest.h"
+#include "sysemu/device_tree.h"
+
+typedef struct {
+    /*< private >*/
+    MachineState parent_obj;
+    /*< public >*/
+    RX62NState mcu;
+    PHYState phy;
+    MDIOState mdio;
+} TKDN_RX62NMachineState;
+
+#define TYPE_TKDN_RX62N_MACHINE MACHINE_TYPE_NAME("tkdn-rx62n-brd")
+
+#define TKDN_RX62N_MACHINE(obj) \
+    OBJECT_CHECK(TKDN_RX62NMachineState, (obj), TYPE_TKDN_RX62N_MACHINE)
+
+#define TINYBOOT_TOP (0xffffff00)
+
+static void set_bootstrap(hwaddr entry, hwaddr dtb)
+{
+    /* Minimal hardware initialize for kernel requirement */
+    /* linux kernel only works little-endian mode */
+    static uint8_t tinyboot[256] = {
+        0xfb, 0x2e, 0x20, 0x00, 0x08,       /* mov.l #0x80020, r2 */
+        0xf8, 0x2e, 0x00, 0x01, 0x01,       /* mov.l #0x00010100, [r2] */
+        0xfb, 0x2e, 0x10, 0x00, 0x08,       /* mov.l #0x80010, r2 */
+        0xf8, 0x22, 0xdf, 0x7d, 0xff, 0xff, /* mov.l #0xffff7ddf, [r2] */
+        0x62, 0x42,                         /* add #4, r2 */
+        0xf8, 0x22, 0xff, 0x7f, 0xff, 0x7f, /* mov.l #0x7fff7fff, [r2] */
+        0xfb, 0x2e, 0x40, 0x82, 0x08,       /* mov.l #0x88240, r2 */
+        0x3c, 0x22, 0x00,                   /* mov.b #0, 2[r2] */
+        0x3c, 0x21, 0x4e,                   /* mov.b #78, 1[r2] */
+        0xfb, 0x22, 0x70, 0xff, 0xff, 0xff, /* mov.l #0xffffff70, r2 */
+        0xec, 0x21,                         /* mov.l [r2], r1 */
+        0xfb, 0x22, 0x74, 0xff, 0xff, 0xff, /* mov.l #0xffffff74, r2 */
+        0xec, 0x22,                         /* mov.l [r2], r2 */
+        0x7f, 0x02,                         /* jmp r2 */
+    };
+    int i;
+
+    *((uint32_t *)&tinyboot[0x70]) = cpu_to_le32(dtb);
+    *((uint32_t *)&tinyboot[0x74]) = cpu_to_le32(entry);
+
+    /* setup exception trap trampoline */
+    for (i = 0; i < 31; i++) {
+        *((uint32_t *)&tinyboot[0x80 + i * 4]) = cpu_to_le32(0x10 + i * 4);
+    }
+    *((uint32_t *)&tinyboot[0xfc]) = cpu_to_le32(TINYBOOT_TOP);
+    rom_add_blob_fixed("tinyboot", tinyboot, sizeof(tinyboot), TINYBOOT_TOP);
+}
+
+/* Link 100BaseTX-FD */
+#define BMSR (MII_BMSR_100TX_FD | MII_BMSR_100TX_HD |                   \
+              MII_BMSR_10T_FD | MII_BMSR_10T_HD | MII_BMSR_MFPS |       \
+              MII_BMSR_AN_COMP | MII_BMSR_AUTONEG)
+#define ANLPAR (MII_ANLPAR_TXFD | MII_ANAR_CSMACD)
+
+static void tkdn_rx62n_net_init(MachineState *m, RX62NState *s,
+                                      NICInfo *nd)
+{
+    TKDN_RX62NMachineState *t = TKDN_RX62N_MACHINE(m);
+    object_initialize_child(OBJECT(t), "ether-phy",
+                            &t->phy, TYPE_ETHER_PHY);
+    qdev_prop_set_uint32(DEVICE(&t->phy), "phy-id", 0x0007c0f0); /* LAN8720A */
+    qdev_prop_set_uint32(DEVICE(&t->phy), "link-out-pol", phy_out_p);
+    qdev_prop_set_uint16(DEVICE(&t->phy), "bmsr", BMSR);
+    qdev_prop_set_uint16(DEVICE(&t->phy), "anlpar", ANLPAR);
+    qdev_realize(DEVICE(&t->phy), NULL, &error_abort);
+
+    object_initialize_child(OBJECT(t), "mdio-bb",
+                            &t->mdio, TYPE_ETHER_MDIO_BB);
+    object_property_set_link(OBJECT(&t->mdio), "phy",
+                             OBJECT(&t->phy), &error_abort);
+    qdev_prop_set_int32(DEVICE(&t->mdio), "address", 0);
+    qdev_realize(DEVICE(&t->mdio), NULL, &error_abort);
+}
+
+#define SDRAM_BASE 0x08000000
+
+static void tkdn_rx62n_init(MachineState *machine)
+{
+    MachineClass *mc = MACHINE_GET_CLASS(machine);
+    TKDN_RX62NMachineState *s = TKDN_RX62N_MACHINE(machine);
+    RX62NClass *rx62nc;
+    MemoryRegion *sysmem = get_system_memory();
+    const char *kernel_filename = machine->kernel_filename;
+    const char *dtb_filename = machine->dtb;
+    rx_kernel_info_t kernel_info;
+
+    if (machine->ram_size < mc->default_ram_size) {
+        char *sz = size_to_str(mc->default_ram_size);
+        error_report("Invalid RAM size, should be more than %s", sz);
+        g_free(sz);
+    }
+
+    /* Allocate memory space */
+    memory_region_add_subregion(sysmem, SDRAM_BASE, machine->ram);
+
+    /* Initialize MCU */
+    object_initialize_child(OBJECT(machine), "mcu",
+                            &s->mcu, TYPE_R5F562N8_MCU);
+    rx62nc = RX62N_MCU_GET_CLASS(&s->mcu);
+    object_property_set_link(OBJECT(&s->mcu), "main-bus", OBJECT(sysmem),
+                             &error_abort);
+    object_property_set_uint(OBJECT(&s->mcu), "xtal-frequency-hz",
+                             12 * 1000 * 1000, &error_abort);
+    tkdn_rx62n_net_init(machine, &s->mcu, nd_table);
+    object_property_set_link(OBJECT(&s->mcu), "mdiodev",
+                             OBJECT(&s->mdio), &error_abort);
+    /* Load kernel and dtb */
+    if (kernel_filename) {
+        kernel_info.ram_start = SDRAM_BASE;
+        kernel_info.ram_size = machine->ram_size;
+        kernel_info.filename = kernel_filename;
+        kernel_info.dtbname = dtb_filename;
+        kernel_info.cmdline = machine->kernel_cmdline;
+        if (!load_kernel(&kernel_info)) {
+            exit(1);
+        }
+        set_bootstrap(kernel_info.entry, kernel_info.dtb_address);
+    } else {
+        if (bios_name) {
+            if (!load_bios(bios_name, rx62nc->rom_flash_size, &error_abort)) {
+                exit(0);
+            }
+        } else if (!qtest_enabled()) {
+            error_report("No bios or kernel specified");
+            exit(1);
+        }
+    }
+    qdev_realize(DEVICE(&s->mcu), NULL, &error_abort);
+}
+
+static void tkdn_rx62n_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+
+    mc->desc = "TokushuDenshiKairo Inc, TKDN-RX62N-BRD";
+    mc->init = tkdn_rx62n_init;
+    mc->is_default = 0;
+    mc->default_cpu_type = TYPE_RX62N_CPU;
+    mc->default_ram_size = 16 * MiB;
+    mc->default_ram_id = "ext-sdram";
+}
+
+static const TypeInfo tkdn_rx62n_type = {
+    .name = TYPE_TKDN_RX62N_MACHINE,
+    .parent = TYPE_MACHINE,
+    .instance_size  = sizeof(TKDN_RX62NMachineState),
+    .class_init = tkdn_rx62n_class_init,
+};
+
+static void tkdn_rx62n_machine_init(void)
+{
+    type_register_static(&tkdn_rx62n_type);
+}
+
+type_init(tkdn_rx62n_machine_init)
diff --git a/hw/rx/Kconfig b/hw/rx/Kconfig
index f20ea63fd9..0ef20d0c3c 100644
--- a/hw/rx/Kconfig
+++ b/hw/rx/Kconfig
@@ -11,3 +11,9 @@ config RX_GDBSIM
     bool
     select RX62N_MCU
     select FITLOADER
+
+config TKDN_RX62N
+    bool
+    select RX62N_MCU
+    select FITLOADER
+
diff --git a/hw/rx/meson.build b/hw/rx/meson.build
index 3a81d85a53..0a741e091c 100644
--- a/hw/rx/meson.build
+++ b/hw/rx/meson.build
@@ -1,6 +1,7 @@
 rx_ss = ss.source_set()
 rx_ss.add(files('loader.c'))
 rx_ss.add(when: 'CONFIG_RX_GDBSIM', if_true: files('rx-gdbsim.c'))
+rx_ss.add(when: 'CONFIG_TKDN_RX62N', if_true: files('tkdn-rx62n.c'))
 rx_ss.add(when: 'CONFIG_RX62N_MCU', if_true: files('rx62n.c', 'rx62n-cpg.c'))
 
 hw_arch += {'rx': rx_ss}
-- 
2.20.1