[PATCH 16/20] dm: core: Correctly read <ranges> of simple-bus

Tom Rini trini at konsulko.com
Wed Mar 3 14:23:37 CET 2021


On Tue, Mar 02, 2021 at 11:34:47PM +0800, Bin Meng wrote:

> At present we decode simple bus <ranges> using the following assumption:
> 
> - parent #address-cells 1
> - child #address-cells 1
> - child #size-cells 1
> 
> However this might not always be the case.
> 
> Update to use fdt_addr_t and fdt_size_t in 'struct simple_bus_plat', and
> use fdt_read_ranges() to correctly decode it according to the actual
> parent and child #address-cells / #size-cells.
> 
> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
> ---
> 
>  drivers/core/simple-bus.c | 15 ++++++++++-----
>  include/dm/simple_bus.h   |  6 +++---
>  2 files changed, 13 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/core/simple-bus.c b/drivers/core/simple-bus.c
> index b0c2c20958..b5863f2b2c 100644
> --- a/drivers/core/simple-bus.c
> +++ b/drivers/core/simple-bus.c
> @@ -6,6 +6,9 @@
>  #include <common.h>
>  #include <dm.h>
>  #include <dm/simple_bus.h>
> +#include <fdt_support.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;

You need to add <asm/global_data.h> here too.

-- 
Tom
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