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-rw-r--r--Makefile.target5
-rw-r--r--hw/axis_dev88.c61
-rw-r--r--hw/cris-boot.c97
-rw-r--r--hw/cris-boot.h11
-rw-r--r--hw/etraxfs.c55
-rw-r--r--target-cris/cpu.h2
6 files changed, 137 insertions, 94 deletions
diff --git a/Makefile.target b/Makefile.target
index d06c67988..478b89d4d 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -233,7 +233,10 @@ obj-microblaze-y += xilinx_ethlite.o
obj-microblaze-$(CONFIG_FDT) += device_tree.o
# Boards
-obj-cris-y = cris_pic_cpu.o etraxfs.o axis_dev88.o
+obj-cris-y = cris_pic_cpu.o
+obj-cris-y += cris-boot.o
+obj-cris-y += etraxfs.o axis_dev88.o
+obj-cris-y += axis_dev88.o
# IO blocks
obj-cris-y += etraxfs_dma.o
diff --git a/hw/axis_dev88.c b/hw/axis_dev88.c
index 7d59c96ca..3ae410504 100644
--- a/hw/axis_dev88.c
+++ b/hw/axis_dev88.c
@@ -30,6 +30,7 @@
#include "etraxfs.h"
#include "loader.h"
#include "elf.h"
+#include "cris-boot.h"
#define D(x)
#define DNAND(x)
@@ -240,28 +241,7 @@ static CPUWriteMemoryFunc * const gpio_write[] = {
#define INTMEM_SIZE (128 * 1024)
-static struct {
- uint32_t bootstrap_pc;
- uint32_t regs[16];
-} loadargs;
-
-static void main_cpu_reset(void *opaque)
-{
- int i;
-
- CPUState *env = opaque;
- cpu_reset(env);
-
- env->pc = loadargs.bootstrap_pc;
- for (i = 0; i < 16; i++) {
- env->regs[i] = loadargs.regs[i];
- }
-}
-
-static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
-{
- return addr - 0x80000000LL;
-}
+static struct cris_load_info li;
static
void axisdev88_init (ram_addr_t ram_size,
@@ -275,7 +255,6 @@ void axisdev88_init (ram_addr_t ram_size,
qemu_irq irq[30], nmi[2], *cpu_irq;
void *etraxfs_dmac;
struct etraxfs_dma_client *eth[2] = {NULL, NULL};
- int kernel_size;
int i;
int nand_regs;
int gpio_regs;
@@ -287,7 +266,6 @@ void axisdev88_init (ram_addr_t ram_size,
cpu_model = "crisv32";
}
env = cpu_init(cpu_model);
- qemu_register_reset(main_cpu_reset, env);
/* allocate RAM */
phys_ram = qemu_ram_alloc(ram_size);
@@ -353,35 +331,14 @@ void axisdev88_init (ram_addr_t ram_size,
irq[0x14 + i]);
}
- if (kernel_filename) {
- uint64_t entry, high;
- int kcmdline_len;
-
- /* Boots a kernel elf binary, os/linux-2.6/vmlinux from the axis
- devboard SDK. */
- kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
- &entry, NULL, &high, 0, ELF_MACHINE, 0);
- loadargs.bootstrap_pc = entry;
- if (kernel_size < 0) {
- /* Takes a kimage from the axis devboard SDK. */
- kernel_size = load_image_targphys(kernel_filename, 0x40004000,
- ram_size);
- loadargs.bootstrap_pc = 0x40004000;
- loadargs.regs[9] = 0x40004000 + kernel_size;
- }
- loadargs.regs[8] = 0x56902387; /* RAM init magic. */
-
- if (kernel_cmdline && (kcmdline_len = strlen(kernel_cmdline))) {
- if (kcmdline_len > 256) {
- fprintf(stderr, "Too long CRIS kernel cmdline (max 256)\n");
- exit(1);
- }
- /* Let the kernel know we are modifying the cmdline. */
- loadargs.regs[10] = 0x87109563;
- loadargs.regs[11] = 0x40000000;
- pstrcpy_targphys("cmdline", loadargs.regs[11], 256, kernel_cmdline);
- }
+ if (!kernel_filename) {
+ fprintf(stderr, "Kernel image must be specified\n");
+ exit(1);
}
+
+ li.image_filename = kernel_filename;
+ li.cmdline = kernel_cmdline;
+ cris_load_image(env, &li);
}
static QEMUMachine axisdev88_machine = {
diff --git a/hw/cris-boot.c b/hw/cris-boot.c
new file mode 100644
index 000000000..2ef17f606
--- /dev/null
+++ b/hw/cris-boot.c
@@ -0,0 +1,97 @@
+/*
+ * CRIS image loading.
+ *
+ * Copyright (c) 2010 Edgar E. Iglesias, Axis Communications AB.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "hw.h"
+#include "sysemu.h"
+#include "loader.h"
+#include "elf.h"
+#include "cris-boot.h"
+
+static void main_cpu_reset(void *opaque)
+{
+ CPUState *env = opaque;
+ struct cris_load_info *li;
+
+ li = env->load_info;
+
+ cpu_reset(env);
+
+ if (!li) {
+ /* nothing more to do. */
+ return;
+ }
+
+ env->pc = li->entry;
+
+ if (li->image_filename) {
+ env->regs[8] = 0x56902387; /* RAM boot magic. */
+ env->regs[9] = 0x40004000 + li->image_size;
+ }
+
+ if (li->cmdline) {
+ /* Let the kernel know we are modifying the cmdline. */
+ env->regs[10] = 0x87109563;
+ env->regs[11] = 0x40000000;
+ }
+}
+
+static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
+{
+ return addr - 0x80000000LL;
+}
+
+void cris_load_image(CPUState *env, struct cris_load_info *li)
+{
+ uint64_t entry, high;
+ int kcmdline_len;
+ int image_size;
+
+ env->load_info = li;
+ /* Boots a kernel elf binary, os/linux-2.6/vmlinux from the axis
+ devboard SDK. */
+ image_size = load_elf(li->image_filename, translate_kernel_address, NULL,
+ &entry, NULL, &high, 0, ELF_MACHINE, 0);
+ li->entry = entry;
+ if (image_size < 0) {
+ /* Takes a kimage from the axis devboard SDK. */
+ image_size = load_image_targphys(li->image_filename, 0x40004000,
+ ram_size);
+ li->entry = 0x40004000;
+ }
+
+ if (image_size < 0) {
+ fprintf(stderr, "qemu: could not load kernel '%s'\n",
+ li->image_filename);
+ exit(1);
+ }
+
+ if (li->cmdline && (kcmdline_len = strlen(li->cmdline))) {
+ if (kcmdline_len > 256) {
+ fprintf(stderr, "Too long CRIS kernel cmdline (max 256)\n");
+ exit(1);
+ }
+ pstrcpy_targphys("cmdline", 0x40000000, 256, li->cmdline);
+ }
+ qemu_register_reset(main_cpu_reset, env);
+}
diff --git a/hw/cris-boot.h b/hw/cris-boot.h
new file mode 100644
index 000000000..e9caf8dee
--- /dev/null
+++ b/hw/cris-boot.h
@@ -0,0 +1,11 @@
+
+struct cris_load_info
+{
+ const char *image_filename;
+ const char *cmdline;
+ int image_size;
+
+ target_phys_addr_t entry;
+};
+
+void cris_load_image(CPUState *env, struct cris_load_info *li);
diff --git a/hw/etraxfs.c b/hw/etraxfs.c
index b88d00aa5..01bf92942 100644
--- a/hw/etraxfs.c
+++ b/hw/etraxfs.c
@@ -30,23 +30,17 @@
#include "etraxfs.h"
#include "loader.h"
#include "elf.h"
+#include "cris-boot.h"
#define FLASH_SIZE 0x2000000
#define INTMEM_SIZE (128 * 1024)
-static uint32_t bootstrap_pc;
+static struct cris_load_info li;
-static void main_cpu_reset(void *opaque)
+static void flash_cpu_reset(void *opaque)
{
CPUState *env = opaque;
cpu_reset(env);
-
- env->pc = bootstrap_pc;
-}
-
-static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
-{
- return addr - 0x80000000LL;
}
static
@@ -61,7 +55,6 @@ void bareetraxfs_init (ram_addr_t ram_size,
qemu_irq irq[30], nmi[2], *cpu_irq;
void *etraxfs_dmac;
struct etraxfs_dma_client *eth[2] = {NULL, NULL};
- int kernel_size;
DriveInfo *dinfo;
int i;
ram_addr_t phys_ram;
@@ -73,7 +66,6 @@ void bareetraxfs_init (ram_addr_t ram_size,
cpu_model = "crisv32";
}
env = cpu_init(cpu_model);
- qemu_register_reset(main_cpu_reset, env);
/* allocate RAM */
phys_ram = qemu_ram_alloc(ram_size);
@@ -137,38 +129,19 @@ void bareetraxfs_init (ram_addr_t ram_size,
}
if (kernel_filename) {
- uint64_t entry, high;
- int kcmdline_len;
-
- /* Boots a kernel elf binary, os/linux-2.6/vmlinux from the axis
- devboard SDK. */
- kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
- &entry, NULL, &high, 0, ELF_MACHINE, 0);
- bootstrap_pc = entry;
- if (kernel_size < 0) {
- /* Takes a kimage from the axis devboard SDK. */
- kernel_size = load_image_targphys(kernel_filename, 0x40004000,
- ram_size);
- bootstrap_pc = 0x40004000;
- env->regs[9] = 0x40004000 + kernel_size;
+ li.image_filename = kernel_filename;
+ li.cmdline = kernel_cmdline;
+ cris_load_image(env, &li);
+ } else {
+ if (!dinfo) {
+ fprintf(stderr,
+ "Provide a kernel image or a flash image to boot from.\n");
+ exit(1);
}
- env->regs[8] = 0x56902387; /* RAM init magic. */
-
- if (kernel_cmdline && (kcmdline_len = strlen(kernel_cmdline))) {
- if (kcmdline_len > 256) {
- fprintf(stderr, "Too long CRIS kernel cmdline (max 256)\n");
- exit(1);
- }
- /* Let the kernel know we are modifying the cmdline. */
- env->regs[10] = 0x87109563;
- env->regs[11] = 0x40000000;
- pstrcpy_targphys("cmdline", env->regs[11], 256, kernel_cmdline);
- }
- }
- env->pc = bootstrap_pc;
- printf ("pc =%x\n", env->pc);
- printf ("ram size =%ld\n", ram_size);
+ /* Nothing more to do for flash images, those boot from addr 0. */
+ qemu_register_reset(flash_cpu_reset, env);
+ }
}
static QEMUMachine bareetraxfs_machine = {
diff --git a/target-cris/cpu.h b/target-cris/cpu.h
index 063a2402b..a62d57cf8 100644
--- a/target-cris/cpu.h
+++ b/target-cris/cpu.h
@@ -155,6 +155,8 @@ typedef struct CPUCRISState {
uint32_t lo;
} tlbsets[2][4][16];
+ void *load_info;
+
CPU_COMMON
} CPUCRISState;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-14 02:44:24 +0000