[Qemu-devel] [PATCH 15/16] Add SMDK2410 board support

[Vincent Sanders <vince@simtec.co.uk>]

Signed-off-by: Vincent Sanders <vince@simtec.co.uk>
---
 Makefile.target |    2 +-
 hw/smdk2410.c   |  125 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 126 insertions(+), 1 deletions(-)
 create mode 100644 hw/smdk2410.c

diff --git a/Makefile.target b/Makefile.target
index 4cb49e1..b30e90a 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -652,7 +652,7 @@ OBJS+= s3c24xx_memc.o s3c24xx_irq.o s3c24xx_clkcon.o s3c24xx_timers.o
 OBJS+= s3c24xx_serial.o s3c24xx_rtc.o s3c24xx_gpio.o s3c24xx_iic.o
 OBJS+= s3c24xx_lcd.o s3c24xx_nand.o
 OBJS+= s3c2410x.o s3c2440.o
-OBJS+= bast.o
+OBJS+= bast.o smdk2410.o
 OBJS+= framebuffer.o
 OBJS+= syborg.o syborg_fb.o syborg_interrupt.o syborg_keyboard.o
 OBJS+= syborg_serial.o syborg_timer.o syborg_pointer.o syborg_rtc.o
diff --git a/hw/smdk2410.c b/hw/smdk2410.c
new file mode 100644
index 0000000..2c13faf
--- /dev/null
+++ b/hw/smdk2410.c
@@ -0,0 +1,125 @@
+/* hw/smdk2410.c
+ *
+ * System emulation for the Samsung SMDK2410
+ *
+ * Copyright 2006, 2008 Daniel Silverstone and Vincent Sanders
+ *
+ * This file is under the terms of the GNU General Public
+ * License Version 2.
+ */
+
+#include "hw.h"
+#include "sysemu.h"
+#include "arm-misc.h"
+#include "net.h"
+#include "smbus.h"
+#include "devices.h"
+#include "boards.h"
+
+#include "s3c2410x.h"
+
+#define BIOS_FILENAME "smdk2410.bin"
+
+typedef struct {
+    S3CState *soc;
+    unsigned char cpld_ctrl2;
+    NANDFlashState *nand[4];
+} SMDK2410State;
+
+/* Bytes in a Kilobyte */
+#define KILO 1024
+/* Bytes in a megabyte */
+#define MEGA 1024 * KILO
+/* Bytes */
+#define BYTE 1
+/* Bits in a byte */
+#define BIT 8
+
+/* Useful defines */
+#define SMDK2410_NOR_BASE CPU_S3C2410X_CS0
+#define SMDK2410_NOR_SIZE 16 * MEGA / BIT
+#define SMDK2410_BOARD_ID 193
+
+static struct arm_boot_info smdk2410_binfo = {
+    .board_id = SMDK2410_BOARD_ID,
+    .ram_size = 0x10000000, /* 256MB */
+};
+
+static void smdk2410_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)
+{
+    SMDK2410State *stcb;
+    int ret, index;
+
+    /* ensure memory is limited to 256MB */
+    if (_ram_size > (256 * MEGA * BYTE))
+        _ram_size = 256 * MEGA * BYTE;
+    ram_size = _ram_size;
+
+    /* allocate storage for board state */
+    stcb = malloc(sizeof(SMDK2410State));
+
+    /* initialise CPU and memory */
+    stcb->soc = s3c2410x_init(ram_size);
+
+    /* Register the NOR flash ROM */
+    cpu_register_physical_memory(SMDK2410_NOR_BASE,
+                                 SMDK2410_NOR_SIZE,
+                                 qemu_ram_alloc(SMDK2410_NOR_SIZE) | IO_MEM_ROM);
+
+    /* initialise board informations */
+    smdk2410_binfo.ram_size = ram_size;
+    smdk2410_binfo.kernel_filename = kernel_filename;
+    smdk2410_binfo.kernel_cmdline = kernel_cmdline;
+    smdk2410_binfo.initrd_filename = initrd_filename;
+    smdk2410_binfo.nb_cpus = 1;
+    smdk2410_binfo.loader_start = SMDK2410_NOR_BASE;
+
+    if (kernel_filename == NULL) {
+        /* No kernel given so try and aquire a bootloader */
+        char buf[PATH_MAX];
+
+        snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME);
+        ret = load_image_targphys(buf, smdk2410_binfo.loader_start, SMDK2410_NOR_SIZE);
+        if (ret <= 0) {
+            perror("qemu");
+            fprintf(stderr, "qemu: warning, could not load SMDK2410 BIOS from %s\n", buf);
+            exit (1);
+        } else {
+            fprintf(stdout, "qemu: info, loaded SMDK2410 BIOS %d bytes from %s\n", ret, buf);
+        }
+    } else {
+        smdk2410_binfo.loader_start = CPU_S3C2410X_DRAM;
+        arm_load_kernel(stcb->soc->cpu_env, &smdk2410_binfo);
+    }
+
+    /* Setup initial (reset) program counter */
+    stcb->soc->cpu_env->regs[15] = smdk2410_binfo.loader_start;
+
+    /* Attach some NAND devices */
+    stcb->nand[0] = NULL;
+    stcb->nand[1] = NULL;
+    index = drive_get_index(IF_MTD, 0, 0);
+    if (index == -1)
+        stcb->nand[2] = NULL;
+    else
+        stcb->nand[2] = nand_init(0xEC, 0x79); /* 128MiB small-page */
+
+}
+
+
+static QEMUMachine smdk2410_machine = {
+  .name = "smdk2410",
+  .desc = "Samsung SMDK2410 (S3C2410A, ARM920T)",
+  .init = smdk2410_init,
+  .max_cpus = 1,
+};
+
+static void smdk2410_machine_init(void)
+{
+    qemu_register_machine(&smdk2410_machine);
+}
+
+machine_init(smdk2410_machine_init);
-- 
1.6.0.4