Messages in this thread Patch in this message | | | From | Michal Simek <> | Subject | [PATCH v2] microblaze: Kernel parameters should be parsed earlier | Date | Tue, 11 Feb 2020 14:13:30 +0100 |
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Kernel command line should be parsed before cma initialization to be able to get cma sizes from command line. That's why call parse_early_param() before dma_continugous_reserve().
Unfortunately it can't be called earlier in machine_early_init() because if earlycon is passed in the command line the parse_early_param() attempts an ioremap which fails as the memory params are not set yet.
Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> ---
Changes in v2: - Fix case with earlycon
arch/microblaze/kernel/setup.c | 1 - arch/microblaze/mm/init.c | 2 ++ 2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c index 511c1ab7f57f..a8fc15ac4291 100644 --- a/arch/microblaze/kernel/setup.c +++ b/arch/microblaze/kernel/setup.c @@ -54,7 +54,6 @@ void __init setup_arch(char **cmdline_p) *cmdline_p = boot_command_line; setup_memory(); - parse_early_param(); console_verbose(); diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index 1056f1674065..9899ff2ef9b6 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -347,6 +347,8 @@ asmlinkage void __init mmu_init(void) * inside 768MB limit */ memblock_set_current_limit(memory_start + lowmem_size - 1); + parse_early_param(); + /* CMA initialization */ dma_contiguous_reserve(memory_start + lowmem_size - 1); } -- 2.25.0
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