On Wed, Apr 5, 2017 at 6:40 PM, Marek Vasut <[email protected]> wrote:
> On 04/05/2017 11:32 AM, Ley Foon Tan wrote:
>> Add misc support for Arria 10.
>>
>> Signed-off-by: Tien Fong Chee <[email protected]>
>> Signed-off-by: Ley Foon Tan <[email protected]>
>
> [...]
>
>> +static int find_peripheral_uart(const void *blob,
>> + int child, const char *node_name)
>> +{
>> + int len;
>> + fdt_addr_t base_addr = 0;
>> + fdt_size_t size;
>> + const u32 *cell;
>> + u32 value, offset = 0;
>> +
>> + base_addr = fdtdec_get_addr_size(blob, child, "reg", &size);
>> + if (base_addr != FDT_ADDR_T_NONE) {
>> + cell = fdt_getprop(blob, child, "pinctrl-single,pins",
>> + &len);
>> + if (cell != NULL) {
>> + for (; len > 0; len -= (2 * sizeof(u32))) {
>> + offset = fdt32_to_cpu(*cell++);
>> + value = fdt32_to_cpu(*cell++);
>> + /* Found UART peripheral */
>> + if (value == 0x0D)
>
> What does 0x0d mean ?
0x0D is dedicated pin mux number for UART. I can update the comment here.
>
>> + return offset;
>> + }
>> + }
>> + }
>> + return -EINVAL;
>> +}
>
> [...]
>
Regards
LeyFoon
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