[U-Boot] [PATCH] usb: dwc2: Reduce data buffer size to 16kB

[Alexey Brodkin]

If we use hardware with very small RAM (let's consider just a couple
of hundreds of kB but not megabytes) it is not super convenient to lose
64kB for statically allocated bufer which most probably won't be used
as big as it is. Typically we'll have much shorter data packages to
excahnge and in the worst case longer packets will be split on separate
transactions.

Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
Cc: Marek Vasut <marex at denx.de>
---
 drivers/usb/host/dwc2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c
index 0efe645044c5..20cd4a6d3d55 100644
--- a/drivers/usb/host/dwc2.c
+++ b/drivers/usb/host/dwc2.c
@@ -25,7 +25,7 @@ DECLARE_GLOBAL_DATA_PTR;
 #define DWC2_HC_CHANNEL			0
 
 #define DWC2_STATUS_BUF_SIZE		64
-#define DWC2_DATA_BUF_SIZE		(64 * 1024)
+#define DWC2_DATA_BUF_SIZE		(16 * 1024)
 
 #define MAX_DEVICE			16
 #define MAX_ENDPOINT			16
-- 
2.14.3