diff options
Diffstat (limited to 'arch/arm/boards/zii-common/board.c')
| -rw-r--r-- | arch/arm/boards/zii-common/board.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/boards/zii-common/board.c b/arch/arm/boards/zii-common/board.c index 254b09a7a7..20ec64d2d4 100644 --- a/arch/arm/boards/zii-common/board.c +++ b/arch/arm/boards/zii-common/board.c @@ -15,6 +15,7 @@ #include <common.h> #include <globalvar.h> #include <init.h> +#include <fs.h> static int rdu_networkconfig(void) { @@ -42,3 +43,33 @@ static int rdu_networkconfig(void) return 0; } late_initcall(rdu_networkconfig); + +#define I210_CFGWORD_PCIID_157B 0x157b1a11 +static int rdu_i210_invm(void) +{ + int fd; + u32 val; + + if (!of_machine_is_compatible("zii,imx6q-zii-rdu2") && + !of_machine_is_compatible("zii,imx6qp-zii-rdu2") && + !of_machine_is_compatible("zii,imx8mq-ultra")) + return 0; + + fd = open("/dev/e1000-invm0", O_RDWR); + if (fd < 0) { + pr_err("could not open e1000 iNVM device!\n"); + return fd; + } + + pread(fd, &val, sizeof(val), 0); + if (val == I210_CFGWORD_PCIID_157B) { + pr_debug("i210 already programmed correctly\n"); + return 0; + } + + val = I210_CFGWORD_PCIID_157B; + pwrite(fd, &val, sizeof(val), 0); + + return 0; +} +late_initcall(rdu_i210_invm); |