[Qemu-devel] [PATCH 16/16] Add two boards which use S3C2410 SOC

[Vincent Sanders]

Add bast and smdk2410 boards which use S3C2410 SOC 

Signed-off-by: Vincent Sanders <address@hidden>
---
 Makefile.target      |    1 
 hw/bast.c            |  176 +++++++++++++++++++++++++++++++++++++++++++++++++++
 hw/boards.h          |    6 +
 hw/smdk2410.c        |  120 ++++++++++++++++++++++++++++++++++
 target-arm/machine.c |    2 
 5 files changed, 305 insertions(+)

diff -urN qemusvnclean/hw/bast.c qemusvnpatches/hw/bast.c
--- qemusvnclean/hw/bast.c      1970-01-01 01:00:00.000000000 +0100
+++ qemusvnpatches/hw/bast.c    2009-04-23 17:45:53.000000000 +0100
@@ -0,0 +1,176 @@
+/* hw/bast.c
+ *
+ * System emulation for the Simtec Electronics BAST
+ *
+ * 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 "flash.h"
+#include "devices.h"
+#include "boards.h"
+
+#include "s3c2410x.h"
+
+#define BIOS_FILENAME "able.bin"
+
+typedef struct {
+    S3CState *soc;
+    unsigned char cpld_ctrl2;
+    struct nand_flash_s *nand[4];
+} STCBState;
+
+/* 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 BAST_NOR_BASE CPU_S3C2410X_CS0
+#define BAST_NOR_SIZE 16 * MEGA / BIT
+#define BAST_BOARD_ID 331
+
+#define BAST_CS1_CPLD_BASE ((target_phys_addr_t)(CPU_S3C2410X_CS1 | (0xc << 
23)))
+#define BAST_CS5_CPLD_BASE ((target_phys_addr_t)(CPU_S3C2410X_CS5 | (0xc << 
23)))
+#define BAST_CPLD_SIZE (4<<23)
+
+static uint32_t cpld_read(void *opaque, target_phys_addr_t address)
+{
+    STCBState *stcb = (STCBState *)opaque;
+    int reg = (address >> 23) & 0xf;
+    if (reg == 0xc)
+        return stcb->cpld_ctrl2;
+    return 0;
+}
+
+static void cpld_write(void *opaque, target_phys_addr_t address,
+                       uint32_t value)
+{
+    STCBState *stcb = (STCBState *)opaque;
+    int reg = (address >> 23) & 0xf;
+    if (reg == 0xc) {
+        stcb->cpld_ctrl2 = value;
+        s3c24xx_nand_attach(stcb->soc, stcb->nand[stcb->cpld_ctrl2 & 3]);
+    }
+}
+
+static CPUReadMemoryFunc *cpld_readfn[] = {
+    cpld_read,
+    cpld_read,
+    cpld_read
+};
+
+static CPUWriteMemoryFunc *cpld_writefn[] = {
+    cpld_write,
+    cpld_write,
+    cpld_write
+};
+
+static void stcb_cpld_register(STCBState *stcb)
+{
+    int tag = cpu_register_io_memory(0, cpld_readfn, cpld_writefn, stcb);
+    cpu_register_physical_memory(BAST_CS1_CPLD_BASE, BAST_CPLD_SIZE, tag);
+    cpu_register_physical_memory(BAST_CS5_CPLD_BASE, BAST_CPLD_SIZE, tag);
+    stcb->cpld_ctrl2 = 0;
+}
+
+static void stcb_i2c_setup(STCBState *stcb)
+{
+    i2c_bus *bus = s3c24xx_i2c_bus(stcb->soc->iic);
+}
+
+static struct arm_boot_info bast_binfo = {
+    .board_id = BAST_BOARD_ID,
+    .ram_size = 0x10000000, /* 256MB */
+};
+
+static void stcb_init(ram_addr_t _ram_size, 
+                      int vga_ram_size, 
+                      const char *boot_device,
+                      const char *kernel_filename, const char *kernel_cmdline,
+                      const char *initrd_filename, const char *cpu_model)
+{
+    STCBState *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(STCBState));
+  
+    /* initialise SOC */
+    stcb->soc = s3c2410x_init(ram_size);
+
+    /* Register the NOR flash ROM */
+    cpu_register_physical_memory(BAST_NOR_BASE, 
+                                 BAST_NOR_SIZE,
+                                 qemu_ram_alloc(BAST_NOR_SIZE) | IO_MEM_ROM);
+
+    /* initialise board informations */
+    bast_binfo.ram_size = ram_size;
+    bast_binfo.kernel_filename = kernel_filename;
+    bast_binfo.kernel_cmdline = kernel_cmdline;
+    bast_binfo.initrd_filename = initrd_filename;
+    bast_binfo.nb_cpus = 1;
+    bast_binfo.loader_start = BAST_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, bast_binfo.loader_start, BAST_NOR_SIZE);
+        if (ret <= 0) {
+            perror("qemu");
+            fprintf(stderr, "qemu: warning, could not load BAST BIOS from 
%s\n", buf);
+            exit (1);
+        } else {
+            fprintf(stdout, "qemu: info, loaded BAST BIOS %d bytes from %s\n", 
ret, buf);
+        }
+    } else {
+        bast_binfo.loader_start = CPU_S3C2410X_RAM;    
+        arm_load_kernel(stcb->soc->cpu_env, &bast_binfo);
+    }
+  
+    /* Setup initial (reset) program counter */
+    stcb->soc->cpu_env->regs[15] = bast_binfo.loader_start;
+
+    /* Initialise the BAST CPLD */
+    stcb_cpld_register(stcb);
+  
+    /* attach i2c devices */
+    stcb_i2c_setup(stcb);
+
+    /* 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 */
+  
+    /* And we're good to go */
+}
+
+
+QEMUMachine bast_machine = {
+  .name = "bast",
+  .desc = "Simtec Electronics BAST (S3C2410A, ARM920T)",
+  .init = stcb_init,
+  .max_cpus = 1,
+};
diff -urN qemusvnclean/hw/boards.h qemusvnpatches/hw/boards.h
--- qemusvnclean/hw/boards.h    2009-04-23 14:49:39.000000000 +0100
+++ qemusvnpatches/hw/boards.h  2009-04-23 17:39:07.000000000 +0100
@@ -128,4 +128,10 @@
 /* tosa.c */
 extern QEMUMachine tosapda_machine;
 
+/* bast.c */
+extern QEMUMachine bast_machine;
+
+/* smdk2410.c */
+extern QEMUMachine smdk2410_machine;
+
 #endif
diff -urN qemusvnclean/hw/smdk2410.c qemusvnpatches/hw/smdk2410.c
--- qemusvnclean/hw/smdk2410.c  1970-01-01 01:00:00.000000000 +0100
+++ qemusvnpatches/hw/smdk2410.c        2009-04-23 17:37:27.000000000 +0100
@@ -0,0 +1,120 @@
+/* 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 "flash.h"
+#include "devices.h"
+#include "boards.h"
+
+#include "s3c2410x.h"
+
+#define BIOS_FILENAME "smdk2410.bin"
+
+typedef struct {
+    S3CState *soc;
+    unsigned char cpld_ctrl2;
+    struct nand_flash_s *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, 
+                      int vga_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_RAM;    
+        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 */
+  
+}
+
+
+QEMUMachine smdk2410_machine = {
+  .name = "smdk2410",
+  .desc = "Samsung SMDK2410 (S3C2410A, ARM920T)",
+  .init = smdk2410_init,
+  .max_cpus = 1,
+};
diff -urN qemusvnclean/Makefile.target qemusvnpatches/Makefile.target
--- qemusvnclean/Makefile.target        2009-04-23 17:30:24.000000000 +0100
+++ qemusvnpatches/Makefile.target      2009-04-23 17:41:39.000000000 +0100
@@ -665,6 +665,7 @@
 OBJS+= s3c24xx_clkcon.o s3c24xx_gpio.o s3c24xx_iic.o
 OBJS+= s3c24xx_irq.o s3c24xx_lcd.o s3c24xx_memc.o s3c24xx_nand.o
 OBJS+= s3c24xx_rtc.o s3c24xx_serial.o s3c24xx_timers.o
+OBJS+= bast.o smdk2410.o
 OBJS+= pflash_cfi01.o gumstix.o
 OBJS+= zaurus.o ide.o serial.o nand.o ecc.o spitz.o tosa.o tc6393xb.o
 OBJS+= omap1.o omap_lcdc.o omap_dma.o omap_clk.o omap_mmc.o omap_i2c.o
diff -urN qemusvnclean/target-arm/machine.c qemusvnpatches/target-arm/machine.c
--- qemusvnclean/target-arm/machine.c   2009-04-20 20:26:52.000000000 +0100
+++ qemusvnpatches/target-arm/machine.c 2009-04-23 17:38:07.000000000 +0100
@@ -7,6 +7,8 @@
     qemu_register_machine(&versatilepb_machine);
     qemu_register_machine(&versatileab_machine);
     qemu_register_machine(&realview_machine);
+    qemu_register_machine(&bast_machine);
+    qemu_register_machine(&smdk2410_machine);
     qemu_register_machine(&akitapda_machine);
     qemu_register_machine(&spitzpda_machine);
     qemu_register_machine(&borzoipda_machine);

-- 
Regards Vincent
http://www.kyllikki.org/