From: Murali Karicheri m-karicheri2@ti.com
On K2G, the PCIe SerDes h/w is a re-use from other K2 devices and SerDes driver requires a firmware image to initialize the SerDes h/w device. This is firmware is part of the initramfs file that is loaded to memory in u-boot and passed to kernel as in other K2 platforms. This patch customize the u-boot env to have this done automatically when the K2G EVM boots up. With this, a user may be able to boot the EVM with a standard PCIe card at the x1 PCIe slot and release image and test PCIe devices such as NIC, SATA etc.
Signed-off-by: Murali Karicheri m-karicheri2@ti.com Signed-off-by: Lokesh Vutla lokeshvutla@ti.com --- include/configs/k2g_evm.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/include/configs/k2g_evm.h b/include/configs/k2g_evm.h index 71b0037..d73543f 100644 --- a/include/configs/k2g_evm.h +++ b/include/configs/k2g_evm.h @@ -18,6 +18,7 @@ #define CONFIG_EXTRA_ENV_KS2_BOARD_SETTINGS \ DEFAULT_MMC_TI_ARGS \ DEFAULT_PMMC_BOOT_ENV \ + DEFAULT_FW_INITRAMFS_BOOT_ENV \ "boot=mmc\0" \ "console=ttyS0,115200n8\0" \ "bootpart=0:2\0" \ @@ -31,6 +32,8 @@ "name_ubi=k2g-evm-ubifs.ubi\0" \ "name_uboot=u-boot-spi-k2g-evm.gph\0" \ "init_mmc=run args_all args_mmc\0" \ + "init_fw_rd_mmc=load mmc ${bootpart} ${rdaddr} " \ + "${bootdir}/${name_fw_rd}; run set_rd_spec\0" \ "soc_variant=k2g\0" \ "get_fdt_mmc=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${name_fdt}\0"\ "get_kern_mmc=load mmc ${bootpart} ${loadaddr} " \ @@ -40,7 +43,8 @@
#define CONFIG_BOOTCOMMAND \ "run envboot; " \ - "run set_name_pmmc init_${boot} get_pmmc_${boot} run_pmmc " \ + "run set_name_pmmc init_${boot} init_fw_rd_${boot} " \ + "get_pmmc_${boot} run_pmmc " \ "get_fdt_${boot} get_mon_${boot} get_kern_${boot} " \ "run_mon run_kern"