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-rw-r--r--drivers/net/wan/fsl_ucc_hdlc.h145
1 files changed, 145 insertions, 0 deletions
diff --git a/drivers/net/wan/fsl_ucc_hdlc.h b/drivers/net/wan/fsl_ucc_hdlc.h
new file mode 100644
index 000000000..71d5ad0a7
--- /dev/null
+++ b/drivers/net/wan/fsl_ucc_hdlc.h
@@ -0,0 +1,145 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Freescale QUICC Engine HDLC Device Driver
+ *
+ * Copyright 2014 Freescale Semiconductor Inc.
+ */
+
+#ifndef _UCC_HDLC_H_
+#define _UCC_HDLC_H_
+
+#include <linux/kernel.h>
+#include <linux/list.h>
+
+#include <soc/fsl/qe/immap_qe.h>
+#include <soc/fsl/qe/qe.h>
+
+#include <soc/fsl/qe/ucc.h>
+#include <soc/fsl/qe/ucc_fast.h>
+
+/* UCC HDLC event register */
+#define UCCE_HDLC_RX_EVENTS \
+(UCC_HDLC_UCCE_RXF | UCC_HDLC_UCCE_RXB | UCC_HDLC_UCCE_BSY)
+#define UCCE_HDLC_TX_EVENTS (UCC_HDLC_UCCE_TXB | UCC_HDLC_UCCE_TXE)
+
+struct ucc_hdlc_param {
+ __be16 riptr;
+ __be16 tiptr;
+ __be16 res0;
+ __be16 mrblr;
+ __be32 rstate;
+ __be32 rbase;
+ __be16 rbdstat;
+ __be16 rbdlen;
+ __be32 rdptr;
+ __be32 tstate;
+ __be32 tbase;
+ __be16 tbdstat;
+ __be16 tbdlen;
+ __be32 tdptr;
+ __be32 rbptr;
+ __be32 tbptr;
+ __be32 rcrc;
+ __be32 res1;
+ __be32 tcrc;
+ __be32 res2;
+ __be32 res3;
+ __be32 c_mask;
+ __be32 c_pres;
+ __be16 disfc;
+ __be16 crcec;
+ __be16 abtsc;
+ __be16 nmarc;
+ __be32 max_cnt;
+ __be16 mflr;
+ __be16 rfthr;
+ __be16 rfcnt;
+ __be16 hmask;
+ __be16 haddr1;
+ __be16 haddr2;
+ __be16 haddr3;
+ __be16 haddr4;
+ __be16 ts_tmp;
+ __be16 tmp_mb;
+};
+
+struct ucc_hdlc_private {
+ struct ucc_tdm *utdm;
+ struct ucc_tdm_info *ut_info;
+ struct ucc_fast_private *uccf;
+ struct device *dev;
+ struct net_device *ndev;
+ struct napi_struct napi;
+ struct ucc_fast __iomem *uf_regs; /* UCC Fast registers */
+ struct ucc_hdlc_param __iomem *ucc_pram;
+ u16 tsa;
+ bool hdlc_busy;
+ bool loopback;
+ bool hdlc_bus;
+
+ u8 *tx_buffer;
+ u8 *rx_buffer;
+ dma_addr_t dma_tx_addr;
+ dma_addr_t dma_rx_addr;
+
+ struct qe_bd *tx_bd_base;
+ struct qe_bd *rx_bd_base;
+ dma_addr_t dma_tx_bd;
+ dma_addr_t dma_rx_bd;
+ struct qe_bd *curtx_bd;
+ struct qe_bd *currx_bd;
+ struct qe_bd *dirty_tx;
+ u16 currx_bdnum;
+
+ struct sk_buff **tx_skbuff;
+ struct sk_buff **rx_skbuff;
+ u16 skb_curtx;
+ u16 skb_currx;
+ unsigned short skb_dirtytx;
+
+ unsigned short tx_ring_size;
+ unsigned short rx_ring_size;
+ s32 ucc_pram_offset;
+
+ unsigned short encoding;
+ unsigned short parity;
+ unsigned short hmask;
+ u32 clocking;
+ spinlock_t lock; /* lock for Tx BD and Tx buffer */
+#ifdef CONFIG_PM
+ struct ucc_hdlc_param *ucc_pram_bak;
+ u32 gumr;
+ u8 guemr;
+ u32 cmxsi1cr_l, cmxsi1cr_h;
+ u32 cmxsi1syr;
+ u32 cmxucr[4];
+#endif
+};
+
+#define TX_BD_RING_LEN 0x10
+#define RX_BD_RING_LEN 0x20
+#define RX_CLEAN_MAX 0x10
+#define NUM_OF_BUF 4
+#define MAX_RX_BUF_LENGTH (48 * 0x20)
+#define MAX_FRAME_LENGTH (MAX_RX_BUF_LENGTH + 8)
+#define ALIGNMENT_OF_UCC_HDLC_PRAM 64
+#define SI_BANK_SIZE 128
+#define MAX_HDLC_NUM 4
+#define HDLC_HEAD_LEN 2
+#define HDLC_CRC_SIZE 2
+#define TX_RING_MOD_MASK(size) (size - 1)
+#define RX_RING_MOD_MASK(size) (size - 1)
+
+#define HDLC_HEAD_MASK 0x0000
+#define DEFAULT_HDLC_HEAD 0xff44
+#define DEFAULT_ADDR_MASK 0x00ff
+#define DEFAULT_HDLC_ADDR 0x00ff
+
+#define BMR_GBL 0x20000000
+#define BMR_BIG_ENDIAN 0x10000000
+#define CRC_16BIT_MASK 0x0000F0B8
+#define CRC_16BIT_PRES 0x0000FFFF
+#define DEFAULT_RFTHR 1
+
+#define DEFAULT_PPP_HEAD 0xff03
+
+#endif