On Tue, Jan 16, 2018 at 04:48:00PM +0100, Paul Cercueil wrote:
> Previously, the mips_machtype variable was always initialized
> to MACH_INGENIC_JZ4740 even if running on different SoCs.
>
> Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
> ---
> arch/mips/jz4740/prom.c | 1 -
> arch/mips/jz4740/setup.c | 22 +++++++++++++++++++---
> 2 files changed, 19 insertions(+), 4 deletions(-)
>
> v2: No change
> v3: No change
> v4: No change
> v5: Use SPDX license identifier
> v6: Init mips_machtype from DT compatible string instead of using
> MIPS_MACHINE
> v7: Fix system name not initialized
>
> diff --git a/arch/mips/jz4740/prom.c b/arch/mips/jz4740/prom.c
> index a62dd8e6ecf9..eb9f2f97bedb 100644
> --- a/arch/mips/jz4740/prom.c
> +++ b/arch/mips/jz4740/prom.c
> @@ -25,7 +25,6 @@
>
> void __init prom_init(void)
> {
> - mips_machtype = MACH_INGENIC_JZ4740;
> fw_init_cmdline();
> }
>
> diff --git a/arch/mips/jz4740/setup.c b/arch/mips/jz4740/setup.c
> index 6d0152321819..afb40f8bce96 100644
> --- a/arch/mips/jz4740/setup.c
> +++ b/arch/mips/jz4740/setup.c
> @@ -53,6 +53,16 @@ static void __init jz4740_detect_mem(void)
> add_memory_region(0, size, BOOT_MEM_RAM);
> }
>
> +static unsigned long __init get_board_mach_type(const void *fdt)
> +{
> + if (!fdt_node_check_compatible(fdt, 0, "ingenic,jz4780"))
> + return MACH_INGENIC_JZ4780;
> + if (!fdt_node_check_compatible(fdt, 0, "ingenic,jz4770"))
> + return MACH_INGENIC_JZ4770;
Based on the assumption that fdt will always be non-NULL since commit
ffb1843d059c ("MIPS: JZ4740: require & include DT"):
Reviewed-by: James Hogan <jhogan@xxxxxxxxxx>
Cheers
James
> +
> + return MACH_INGENIC_JZ4740;
> +}
> +
> void __init plat_mem_setup(void)
> {
> int offset;
> @@ -63,6 +73,8 @@ void __init plat_mem_setup(void)
> offset = fdt_path_offset(__dtb_start, "/memory");
> if (offset < 0)
> jz4740_detect_mem();
> +
> + mips_machtype = get_board_mach_type(__dtb_start);
> }
>
> void __init device_tree_init(void)
> @@ -75,10 +87,14 @@ void __init device_tree_init(void)
>
> const char *get_system_type(void)
> {
> - if (IS_ENABLED(CONFIG_MACH_JZ4780))
> + switch (mips_machtype) {
> + case MACH_INGENIC_JZ4780:
> return "JZ4780";
> -
> - return "JZ4740";
> + case MACH_INGENIC_JZ4770:
> + return "JZ4770";
> + default:
> + return "JZ4740";
> + }
> }
>
> void __init arch_init_irq(void)
> --
> 2.11.0
>
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