On 12/11/2017 9:11 AM, Chi-Hsien Lin wrote:
broken_sg_support, sd_head_align, and sd_sgentry_align are used in
brcmfmac code but not configurable in dts file. Add the parsing logic.
Now they can be configured like below in dts:
brcm,broken_sg_support;
brcm,sd_head_align = <4>;
brcm,sd_sgentry_align = <4>;
Signed-off-by: Chi-hsien Lin <chi-hsien....@cypress.com>
---
.../devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git
a/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt
b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt
index 86602f2..4d42f0d 100644
--- a/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt
+++ b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt
@@ -17,6 +17,11 @@ Optional properties:
When not specified the device will use in-band SDIO interrupts.
- interrupt-names : name of the out-of-band interrupt, which must be set
to "host-wake".
+ - broken_sg_support : flag for broken sg list support of SDIO host controller.
+ Set this to true if the SDIO host controller has higher align
+ requirement than 32 bytes for each scatterlist item.
In DT context, this does not characterize the device but as described it
is about the SDIO host controller. I think the same applies to the
properties below, but not entirely sure about that.
+ - sg_head_align : alignment requirement for start of data buffer.
+ - sg_sgentry_align : length alignment requirement for each sg entry.
Regards,
Arend