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usb: arc: fix unable to receive 64 bytes long control packet

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by adding QH_ZLT_SEL to control endpoints

Change-Id: I27ccf6a6db302688f1df2e6fd1d3fe98c20323cf
This commit is contained in:
mojyack 2025-12-03 09:55:18 +09:00
parent 1319426749
commit 3dff77460d
1 changed files with 2 additions and 2 deletions
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4
firmware/target/arm/usb-drv-arc.c
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@ -974,8 +974,8 @@ static void init_control_queue_heads(void)
memset(qh_array, 0, sizeof qh_array);
/*** control ***/
qh_array[EP_CONTROL].max_pkt_length = 64 << QH_MAX_PKT_LEN_POS | QH_IOS;
qh_array[EP_CONTROL].max_pkt_length = 64 << QH_MAX_PKT_LEN_POS | QH_IOS | QH_ZLT_SEL;
qh_array[EP_CONTROL].dtd.next_td_ptr = QH_NEXT_TERMINATE;
qh_array[EP_CONTROL+1].max_pkt_length = 64 << QH_MAX_PKT_LEN_POS;
qh_array[EP_CONTROL+1].max_pkt_length = 64 << QH_MAX_PKT_LEN_POS | QH_ZLT_SEL;
qh_array[EP_CONTROL+1].dtd.next_td_ptr = QH_NEXT_TERMINATE;
}