The BCM2835 has an alternate function for the GAHBCFG.HBSTLEN field.
Document this difference in the code.
Cc: Stefan Wahren <stefan.wahren@xxxxxxxx>
Signed-off-by: John Youn <johnyoun@xxxxxxxxxxxx>
---
drivers/usb/dwc2/params.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index a786256..d44b31c 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -93,6 +93,13 @@ static const struct dwc2_core_params params_bcm2835 = {
.host_ls_low_power_phy_clk = 0, /* 48 MHz */
.ts_dline = 0,
.reload_ctl = 0,
+
+ /*
+ * Although this value would normally be invalid, for BCM2835,
+ * the GAHBCFG.HBSTLEN field has a different meaning from that
+ * defined by Synopsys. See the BCM2835 databook section 15.2
+ * for details.
+ */
.ahbcfg = 0x10,
.uframe_sched = 0,
.external_id_pin_ctl = -1,
--
2.10.0
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