riscv: fix nommu_k210_sdcard_defconfig

Instead of an arbitrary delay, use the "rootwait" kernel option to wait
for the mmc root device to be ready.

Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Fixes: 7e09fd3994c5 ("riscv: Add Canaan Kendryte K210 SD card defconfig")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

authored by Damien Le Moal and committed by Palmer Dabbelt 762e52f7 5feef64f

+1 -1
+1 -1
arch/riscv/configs/nommu_k210_sdcard_defconfig
··· 23 23 CONFIG_SOC_CANAAN=y 24 24 CONFIG_SMP=y 25 25 CONFIG_NR_CPUS=2 26 - CONFIG_CMDLINE="earlycon console=ttySIF0 rootdelay=2 root=/dev/mmcblk0p1 ro" 26 + CONFIG_CMDLINE="earlycon console=ttySIF0 root=/dev/mmcblk0p1 rootwait ro" 27 27 CONFIG_CMDLINE_FORCE=y 28 28 # CONFIG_SECCOMP is not set 29 29 # CONFIG_STACKPROTECTOR is not set