diff options
| -rw-r--r-- | README | 17 | ||||
| -rw-r--r-- | common/usb_kbd.c | 4 | ||||
| -rw-r--r-- | doc/README.qemu_mips | 88 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 2 | ||||
| -rw-r--r-- | include/configs/qemu-mips.h | 2 | ||||
| -rw-r--r-- | include/devices.h | 2 |
6 files changed, 103 insertions, 12 deletions
@@ -3740,7 +3740,7 @@ MPC826x processors), on others (parts of) the data cache can be locked as (mis-) used as memory, etc. Chris Hallinan posted a good summary of these issues to the - u-boot-users mailing list: + U-Boot mailing list: Subject: RE: [U-Boot-Users] RE: More On Memory Bank x (nothingness)? From: "Chris Hallinan" <clh@net1plus.com> @@ -3950,7 +3950,7 @@ int main (int argc, char *argv[]) Download latest U-Boot source; - Subscribe to u-boot-users mailing list; + Subscribe to u-boot mailing list; if (clueless) { email ("Hi, I am new to U-Boot, how do I get started?"); @@ -4027,10 +4027,11 @@ Since the number of patches for U-Boot is growing, we need to establish some rules. Submissions which do not conform to these rules may be rejected, even when they contain important and valuable stuff. -Patches shall be sent to the u-boot-users mailing list. - Please see http://www.denx.de/wiki/U-Boot/Patches for details. +Patches shall be sent to the u-boot mailing list <u-boot@lists.denx.de>; +see http://lists.denx.de/mailman/listinfo/u-boot + When you send a patch, please include the following information with it: @@ -4093,7 +4094,7 @@ Notes: disabled must not need more memory than the old code without your modification. -* Remember that there is a size limit of 40 kB per message on the - u-boot-users mailing list. Bigger patches will be moderated. If - they are reasonable and not bigger than 100 kB, they will be - acknowledged. Even bigger patches should be avoided. +* Remember that there is a size limit of 100 kB per message on the + u-boot mailing list. Bigger patches will be moderated. If they are + reasonable and not too big, they will be acknowledged. But patches + bigger than the size limit should be avoided. diff --git a/common/usb_kbd.c b/common/usb_kbd.c index cf14560..89e6ee7 100644 --- a/common/usb_kbd.c +++ b/common/usb_kbd.c @@ -211,7 +211,11 @@ int drv_usb_kbd_init(void) /* deregistering the keyboard */ int usb_kbd_deregister(void) { +#ifdef CONFIG_SYS_DEVICE_DEREGISTER return device_deregister(DEVNAME); +#else + return 1; +#endif } /************************************************************************** diff --git a/doc/README.qemu_mips b/doc/README.qemu_mips index 2fdd2b0..3985264 100644 --- a/doc/README.qemu_mips +++ b/doc/README.qemu_mips @@ -17,19 +17,103 @@ create image: start it: # qemu-system-mips -M mips -pflash flash -monitor null -nographic +2) Download kernel + initrd + +On ftp://ftp.denx.de/pub/contrib/Jean-Christophe_Plagniol-Villard/qemu_mips/ +you can downland + +#config to build the kernel +qemu_mips_defconfig +#patch to fix mips interupt init on 2.6.24.y kernel +qemu_mips_kernel.patch +initrd.gz +vmlinux +vmlinux.bin +System.map + +4) Generate uImage + +# tools/mkimage -A mips -O linux -T kernel -C gzip -a 0x80010000 -e 0x80245650 -n "Linux 2.6.24.y" -d vmlinux.bin.gz uImage + +5) Copy uImage to Flash +# dd if=uImage bs=1k conv=notrunc seek=224 of=flash + +6) Generate Ide Disk + +# dd of=ide bs=1k cout=100k if=/dev/zero + +# sfdisk -C 261 -d ide +# partition table of ide +unit: sectors + + ide1 : start= 63, size= 32067, Id=83 + ide2 : start= 32130, size= 32130, Id=83 + ide3 : start= 64260, size= 4128705, Id=83 + ide4 : start= 0, size= 0, Id= 0 + +7) Copy to ide + +# dd if=uImage bs=512 conv=notrunc seek=63 of=ide + +8) Generate ext2 on part 2 on Copy uImage and initrd.gz + +# Attached as loop device ide offset = 32130 * 512 +# losetup -o 16450560 -f ide +# Format as ext2 ( arg2 : nb blocks) +# mke2fs /dev/loop0 16065 +# losetup -d /dev/loop0 +# Mount and copy uImage and initrd.gz to it +# mount -o loop,offset=16450560 -t ext2 ide /mnt +# mkdir /mnt/boot +# cp {initrd.gz,uImage} /mnt/boot/ +# Umount it +# umount /mnt + +9) Set Environment + +setenv rd_start 0x80800000 +setenv rd_size 2663940 +setenv kernel BFC38000 +setenv oad_addr 80500000 +setenv load_addr2 80F00000 +setenv kernel_flash BFC38000 +setenv load_addr_hello 80200000 +setenv bootargs 'root=/dev/ram0 init=/bin/sh' +setenv load_rd_ext2 'ide res; ext2load ide 0:2 ${rd_start} /boot/initrd.gz' +setenv load_rd_tftp 'tftp ${rd_start} /initrd.gz' +setenv load_kernel_hda 'ide res; diskboot ${load_addr} 0:2' +setenv load_kernel_ext2 'ide res; ext2load ide 0:2 ${load_addr} /boot/uImage' +setenv load_kernel_tftp 'tftp ${load_addr} /qemu_mips/uImage' +setenv boot_ext2_ext2 'run load_rd_ext2; run load_kernel_ext2; run addmisc; bootm ${load_addr}' +setenv boot_ext2_flash 'run load_rd_ext2; run addmisc; bootm ${kernel_flash}' +setenv boot_ext2_hda 'run load_rd_ext2; run load_kernel_hda; run addmisc; bootm ${load_addr}' +setenv boot_ext2_tftp 'run load_rd_ext2; run load_kernel_tftp; run addmisc; bootm ${load_addr}' +setenv boot_tftp_hda 'run load_rd_tftp; run load_kernel_hda; run addmisc; bootm ${load_addr}' +setenv boot_tftp_ext2 'run load_rd_tftp; run load_kernel_ext2; run addmisc; bootm ${load_addr}' +setenv boot_tftp_flash 'run load_rd_tftp; run addmisc; bootm ${kernel_flash}' +setenv boot_tftp_tftp 'run load_rd_tftp; run load_kernel_tftp; run addmisc; bootm ${load_addr}' +setenv load_hello_tftp 'tftp ${load_addr_hello} /examples/hello_world.bin' +setenv go_tftp 'run load_hello_tftp; go ${load_addr_hello}' +setenv addmisc 'setenv bootargs ${bootargs} console=ttyS0,${baudrate} rd_start=${rd_start} rd_size=${rd_size} ethaddr=${ethaddr}' +setenv bootcmd 'run boot_tftp_flash' + +10) Now you can boot from flash, ide, ide+ext2 and tfp + +# qemu-system-mips -M mips -pflash flash -monitor null -nographic -net nic -net user -tftp `pwd` -hda ide + II) How to debug U-Boot In order to debug U-Boot you need to start qemu with gdb server support (-s) and waiting the connection to start the CPU (-S) -# qemu-system-mips -S -s -M mips -pflash flash -monitor null -nographic +# qemu-system-mips -S -s -M mips -pflash flash -monitor null -nographic -net nic -net user -tftp `pwd` -hda ide in an other console you start gdb 1) Debugging of U-Boot Before Relocation Before relocation, the addresses in the ELF file can be used without any problems -buy connecting to the gdb server localhost:1234 +by connecting to the gdb server localhost:1234 # mipsel-unknown-linux-gnu-gdb u-boot GNU gdb 6.6 diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index ba05b76..94a65d4 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -460,8 +460,8 @@ static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip, struct nand_chip *chip = mtd->priv; if (!(chip->options & NAND_BBT_SCANNED)) { - chip->scan_bbt(mtd); chip->options |= NAND_BBT_SCANNED; + chip->scan_bbt(mtd); } if (!chip->bbt) diff --git a/include/configs/qemu-mips.h b/include/configs/qemu-mips.h index f028d1a..8444462 100644 --- a/include/configs/qemu-mips.h +++ b/include/configs/qemu-mips.h @@ -150,7 +150,7 @@ #define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1 #define CONFIG_ENV_IS_IN_FLASH 1 -#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0x40000) +#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN) /* Address and size of Primary Environment Sector */ #define CONFIG_ENV_SIZE 0x8000 diff --git a/include/devices.h b/include/devices.h index 6b78d58..20ddfc4 100644 --- a/include/devices.h +++ b/include/devices.h @@ -91,7 +91,9 @@ extern char *stdio_names[MAX_FILES]; */ int device_register (device_t * dev); int devices_init (void); +#ifdef CONFIG_SYS_DEVICE_DEREGISTER int device_deregister(char *devname); +#endif struct list_head* device_get_list(void); device_t* device_get_by_name(char* name); device_t* device_clone(device_t *dev); |