hw: Add Overo board support

Add Gumstix Overo board definition (an OMAP3 based board).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

2 files changed, 117 insertions, 1 deletions

diff --git a/Makefile.target b/Makefile.target
index abc9461bad..184a042e3a 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -356,7 +356,7 @@ obj-arm-y += omap1.o omap_lcdc.o omap_dma.o omap_clk.o omap_mmc.o omap_i2c.o \
 obj-arm-y += omap2.o omap_dss.o soc_dma.o omap_gptimer.o omap_synctimer.o \
 		omap_gpmc.o omap_sdrc.o omap_spi.o omap_tap.o omap_l4.o
 obj-arm-y += omap3.o omap_usb.o omap3_boot.o omap3_mmc.o dsi.o
-obj-arm-y += twl4030.o beagle.o
+obj-arm-y += twl4030.o beagle.o overo.o
 obj-arm-y += omap_sx1.o palm.o tsc210x.o
 obj-arm-y += nseries.o blizzard.o onenand.o cbus.o tusb6010.o usb/hcd-musb.o
 obj-arm-y += mst_fpga.o mainstone.o
diff --git a/hw/overo.c b/hw/overo.c
new file mode 100644
index 0000000000..6c059ae5e8
--- /dev/null
+++ b/hw/overo.c
@@ -0,0 +1,116 @@
+/*
+ * Gumstix Overo board emulation.
+ * 
+ * Copyright (c) 2009 Nokia Corporation
+ * Copyright (c) 2011 Linaro Limited
+ * Written by Peter Maydell (based on the Beagle board emulation code)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  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 "qemu-common.h"
+#include "sysemu.h"
+#include "omap.h"
+#include "arm-misc.h"
+#include "boards.h"
+#include "i2c.h"
+#include "net.h"
+#include "devices.h"
+#include "flash.h"
+#include "sysbus.h"
+#include "blockdev.h"
+#include "exec-memory.h"
+
+#define OVERO_NAND_CS       0
+#define OVERO_NET_CS        5
+
+struct overo_s {
+    struct omap_mpu_state_s *cpu;
+
+    DeviceState *nand;
+    void *twl4030;
+    DeviceState *eth;
+    DeviceState *ddc;
+};
+
+static void overo_init(ram_addr_t ram_size,
+                       const char *boot_device,
+                       const char *kernel_filename,
+                       const char *kernel_cmdline,
+                       const char *initrd_filename,
+                       const char *cpu_model)
+{
+    MemoryRegion *sysmem = get_system_memory();
+    struct overo_s *s = (struct overo_s *) g_malloc0(sizeof(*s));
+    DriveInfo *dmtd = drive_get(IF_MTD, 0, 0);
+    DriveInfo *dsd  = drive_get(IF_SD, 0, 0);
+
+    if (ram_size > 1024 * 1024 * 1024) {
+        fprintf(stderr, "overo: maximum permitted RAM size 1024MB\n");
+        exit(1);
+    }
+
+    if (!dmtd && !dsd) {
+        hw_error("%s: SD or NAND image required", __FUNCTION__);
+    }
+    s->cpu = omap3_mpu_init(sysmem, omap3430, ram_size,
+                            NULL, NULL, serial_hds[0], NULL);
+
+    s->nand = nand_init(dmtd ? dmtd->bdrv : NULL, NAND_MFR_MICRON, 0xba);
+    nand_setpins(s->nand, 0, 0, 0, 1, 0); /* no write-protect */
+    omap_gpmc_attach_nand(s->cpu->gpmc, OVERO_NAND_CS, s->nand);
+
+    if (dsd) {
+        omap3_mmc_attach(s->cpu->omap3_mmc[0], dsd->bdrv, 0, 0);
+    }
+
+    /* FAB revs >= 2516: 4030 interrupt is GPIO 0 (earlier ones were 112) */
+    s->twl4030 = twl4030_init(omap_i2c_bus(s->cpu->i2c[0]),
+                              qdev_get_gpio_in(s->cpu->gpio, 0),
+                              NULL, NULL);
+
+    /* Wire up an I2C slave which returns EDID monitor information;
+     * newer Linux kernels won't turn on the display unless they
+     * detect a monitor over DDC.
+     */
+    s->ddc = i2c_create_slave(omap_i2c_bus(s->cpu->i2c[2]), "i2c-ddc", 0x50);
+
+    omap_lcd_panel_attach(s->cpu->dss);
+
+    /* Strictly this should be a LAN9221 */
+    if (nd_table[0].vlan) {
+        /* The ethernet chip hangs off the GPMC */
+        NICInfo *nd = &nd_table[0];
+        qemu_check_nic_model(nd, "lan9118");
+        s->eth = qdev_create(NULL, "lan9118");
+        qdev_set_nic_properties(s->eth, nd);
+        qdev_init_nofail(s->eth);
+        omap_gpmc_attach(s->cpu->gpmc, OVERO_NET_CS,
+                         sysbus_mmio_get_region(sysbus_from_qdev(s->eth), 0));
+        sysbus_connect_irq(sysbus_from_qdev(s->eth), 0,
+                           qdev_get_gpio_in(s->cpu->gpio, 176));
+    }
+}
+
+QEMUMachine overo_machine = {
+    .name =        "overo",
+    .desc =        "Gumstix Overo board (OMAP3530)",
+    .init =        overo_init,
+};
+
+static void overo_machine_init(void)
+{
+    qemu_register_machine(&overo_machine);
+}
+
+machine_init(overo_machine_init);