thanks. I have done.
On Sat, Sep 20, 2014 at 5:39 PM, Weijie Gao <hackpas...@gmail.com> wrote:
> Hi,
>
> You need to register a account at patchwork.openwrt.org, and mark your
> previous patches Superseded.
>
> Weijie Gao
>
>
> On 2014/9/20 17:18, swigger wrote:
>> Openwrt recently adds Qihoo [NYSE:QIHU] C301 router support.
>> However, this router has a backup firmware in the second flash and the
>> current trunk can only boot 3 times before u-boot boots into that backup
>> firmware. This is a stratgy for unbricking.
>>
>> This patch makes u-boot happy.
>>
>> Signed-off-by: Xungneg li <swigger at gmail.com>
>> ---
>> .../ar71xx/files/arch/mips/ath79/mach-qihoo-c301.c | 87
>> ++++++++++++++++++++
>> 1 file changed, 87 insertions(+)
>>
>> diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-qihoo-c301.c
>> b/target/linux/ar71xx/files/arch/mips/ath79/mach-qihoo-c301.c
>> index 08a602f..816a433 100644
>> --- a/target/linux/ar71xx/files/arch/mips/ath79/mach-qihoo-c301.c
>> +++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-qihoo-c301.c
>> @@ -14,6 +14,8 @@
>> #include <linux/gpio.h>
>> #include <linux/platform_device.h>
>> #include <linux/ath9k_platform.h>
>> +#include <linux/crc32.h>
>> +#include <linux/mtd/mtd.h>
>>
>> #include <asm/mach-ath79/ar71xx_regs.h>
>>
>> @@ -79,6 +81,7 @@ static struct gpio_keys_button qihoo_c301_gpio_keys[]
>> __initdata = {
>> },
>> };
>>
>> +static int qihoo_c301_board = 0;
>> struct flash_platform_data flash __initdata = {NULL, NULL, 0};
>>
>> static void qihoo_c301_get_mac(const char *name, char *mac)
>> @@ -98,6 +101,7 @@ static void __init qihoo_c301_setup(void)
>> u8 tmpmac[ETH_ALEN];
>>
>> ath79_register_m25p80_multi(&flash);
>> + qihoo_c301_board = 1;
>>
>> ath79_gpio_function_enable(AR934X_GPIO_FUNC_JTAG_DISABLE);
>>
>> @@ -164,3 +168,86 @@ static void __init qihoo_c301_setup(void)
>>
>> MIPS_MACHINE(ATH79_MACH_QIHOO_C301, "QIHOO-C301", "Qihoo 360 C301",
>> qihoo_c301_setup);
>> +
>> +
>> +//the following code stops qihoo's uboot booting into the backup system.
>> +static void erase_callback(struct erase_info *erase)
>> +{
>> + char * buf = (char*) erase->priv;
>> + int ret;
>> + size_t nb=0;
>> +
>> + if (erase->state == MTD_ERASE_DONE)
>> + {
>> + ret = mtd_write(erase->mtd, 0, 0x10000, &nb, buf);
>> + }
>> + kfree(erase);
>> + kfree(buf);
>> +}
>> +
>> +static int qihoo_reset_trynum(void)
>> +{
>> + size_t nb = 0;
>> + char *buf=0, *p;
>> + const char * match = "image1trynum=";
>> + size_t matchlen = strlen(match);
>> + struct erase_info *erase;
>> + struct mtd_info * mtd;
>> + unsigned int newcrc;
>> + int ret;
>> +
>> + if (! qihoo_c301_board)
>> + return 0;
>> +
>> + mtd = get_mtd_device_nm("action_image_config");
>> + if (IS_ERR(mtd))
>> + {
>> + return PTR_ERR(mtd);
>> + }
>> + if (mtd->size!=0x10000)
>> + {
>> + return -1;
>> + }
>> + buf = kzalloc(0x10000+4, GFP_KERNEL);
>> + ret = mtd_read(mtd, 0, 0x10000, &nb, buf);
>> + if (nb != 0x10000)
>> + {
>> + kfree(buf);
>> + return -1;
>> + }
>> + for (p=buf+4; *p; p+=strlen(p)+1)
>> + {
>> + if (strncmp(p, match, matchlen)==0)
>> + {
>> + p += matchlen;
>> + while (*p)
>> + *p++ = '0';
>> + break;
>> + }
>> + }
>> +
>> + newcrc = crc32(~0, buf+4, 0xfffc)^0xffffffff;
>> + memcpy(buf, &newcrc, 4);
>> +
>> + erase = kzalloc(sizeof(struct erase_info), GFP_KERNEL);
>> + if (!erase)
>> + {
>> + kfree(buf);
>> + return -1;
>> + }
>> + erase->mtd = mtd;
>> + erase->callback = erase_callback;
>> + erase->addr = 0;
>> + erase->len = 0x10000;
>> + erase->priv = (u_long) buf;
>> + ret = mtd_erase(mtd, erase);
>> +
>> + if (ret) {
>> + kfree(buf);
>> + kfree(erase);
>> + return ret;
>> + }
>> +
>> + return 0;
>> +}
>> +late_initcall(qihoo_reset_trynum);
>
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