2020-06-08 09:31:22

by Álvaro Fernández Rojas

Subject: [PATCH] MIPS: BCM63xx: improve CFE version detection

There are some CFE variants that start with 'cfe-vd' instead of 'cfe-v', such
as the one used in the Huawei HG556a: "cfe-vd081.5003". In this case, the CFE
version is stored as is (string vs number bytes).

Some newer devices have an additional version number, such as the Comtrend
VR-3032u: "1.0.38-112.118-11".

Finally, print the string as is if the version doesn't start with "cfe-v" or
"cfe-vd", but starts with "cfe-".

Signed-off-by: Álvaro Fernández Rojas <[email protected]>
---
arch/mips/bcm63xx/boards/board_bcm963xx.c | 22 ++++++++++++++++++----
1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c
index 36ec3dc2c999..38f812383998 100644
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -763,11 +763,25 @@ void __init board_prom_init(void)

/* dump cfe version */
cfe = boot_addr + BCM963XX_CFE_VERSION_OFFSET;
- if (!memcmp(cfe, "cfe-v", 5))
- snprintf(cfe_version, sizeof(cfe_version), "%u.%u.%u-%u.%u",
- cfe[5], cfe[6], cfe[7], cfe[8], cfe[9]);
- else
+ if (strstarts(cfe, "cfe-")) {
+ if(cfe[4] == 'v') {
+ if(cfe[5] == 'd')
+ snprintf(cfe_version, 11, "%s",
+ (char *) &cfe[5]);
+ else if (cfe[10] > 0)
+ snprintf(cfe_version, sizeof(cfe_version),
+ "%u.%u.%u-%u.%u-%u", cfe[5], cfe[6],
+ cfe[7], cfe[8], cfe[9], cfe[10]);
+ else
+ snprintf(cfe_version, sizeof(cfe_version),
+ "%u.%u.%u-%u.%u", cfe[5], cfe[6],
+ cfe[7], cfe[8], cfe[9]);
+ } else {
+ snprintf(cfe_version, 12, "%s", (char *) &cfe[4]);
+ }
+ } else {
strcpy(cfe_version, "unknown");
+ }
pr_info("CFE version: %s\n", cfe_version);

bcm63xx_nvram_init(boot_addr + BCM963XX_NVRAM_OFFSET);
--
2.26.2

2020-07-24 11:50:53

by Thomas Bogendoerfer

Subject: Re: [PATCH] MIPS: BCM63xx: improve CFE version detection

On Mon, Jun 08, 2020 at 11:28:35AM +0200, ?lvaro Fern?ndez Rojas wrote:
> There are some CFE variants that start with 'cfe-vd' instead of 'cfe-v', such
> as the one used in the Huawei HG556a: "cfe-vd081.5003". In this case, the CFE
> version is stored as is (string vs number bytes).
>
> Some newer devices have an additional version number, such as the Comtrend
> VR-3032u: "1.0.38-112.118-11".
>
> Finally, print the string as is if the version doesn't start with "cfe-v" or
> "cfe-vd", but starts with "cfe-".
>
> Signed-off-by: ?lvaro Fern?ndez Rojas <[email protected]>
> ---
> arch/mips/bcm63xx/boards/board_bcm963xx.c | 22 ++++++++++++++++++----
> 1 file changed, 18 insertions(+), 4 deletions(-)

applied to mips-next.

Thomas.

--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea. [ RFC1925, 2.3 ]