Check if the iNVM is already correctly written. If it isn't write the correct value in, so the device uses the correct PCI ID for the Linux driver. Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx> --- arch/arm/boards/zii-imx6q-rdu2/board.c | 30 ++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/arch/arm/boards/zii-imx6q-rdu2/board.c b/arch/arm/boards/zii-imx6q-rdu2/board.c index 49cc234c020b..960c5ba53301 100644 --- a/arch/arm/boards/zii-imx6q-rdu2/board.c +++ b/arch/arm/boards/zii-imx6q-rdu2/board.c @@ -15,6 +15,7 @@ #include <common.h> #include <envfs.h> +#include <fs.h> #include <gpio.h> #include <i2c/i2c.h> #include <init.h> @@ -226,3 +227,32 @@ static int rdu2_ethernet_init(void) return 0; } late_initcall(rdu2_ethernet_init); + +#define I210_CFGWORD_PCIID_157B 0x157b1a11 +static int rdu2_i210_invm(void) +{ + int fd; + u32 val; + + if (!of_machine_is_compatible("zii,imx6q-zii-rdu2") && + !of_machine_is_compatible("zii,imx6qp-zii-rdu2")) + 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(rdu2_i210_invm); -- 2.19.1 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox