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authorZhao Qiang <qiang.zhao@nxp.com>2016-06-06 09:30:01 +0300
committerDavid S. Miller <davem@davemloft.net>2016-06-08 01:56:31 +0300
commit35ef1c20fdb26779b6c3c4fd74bbdd5028e70005 (patch)
tree3f321ac6d830bb09031ab17fe9581c2653adfc44 /include/soc
parent19163ac3123e7fef8b1ecb2f1d4223f58ed5e884 (diff)
downloadlinux-35ef1c20fdb26779b6c3c4fd74bbdd5028e70005.tar.xz
fsl/qe: Add QE TDM lib
QE has module to support TDM, some other protocols supported by QE are based on TDM. add a qe-tdm lib, this lib provides functions to the protocols using TDM to configurate QE-TDM. Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/soc')
-rw-r--r--include/soc/fsl/qe/immap_qe.h5
-rw-r--r--include/soc/fsl/qe/qe_tdm.h94
2 files changed, 95 insertions, 4 deletions
diff --git a/include/soc/fsl/qe/immap_qe.h b/include/soc/fsl/qe/immap_qe.h
index bedbff891423..c76ef30b05ba 100644
--- a/include/soc/fsl/qe/immap_qe.h
+++ b/include/soc/fsl/qe/immap_qe.h
@@ -159,10 +159,7 @@ struct spi {
/* SI */
struct si1 {
- __be16 siamr1; /* SI1 TDMA mode register */
- __be16 sibmr1; /* SI1 TDMB mode register */
- __be16 sicmr1; /* SI1 TDMC mode register */
- __be16 sidmr1; /* SI1 TDMD mode register */
+ __be16 sixmr1[4]; /* SI1 TDMx (x = A B C D) mode register */
u8 siglmr1_h; /* SI1 global mode register high */
u8 res0[0x1];
u8 sicmdr1_h; /* SI1 command register high */
diff --git a/include/soc/fsl/qe/qe_tdm.h b/include/soc/fsl/qe/qe_tdm.h
new file mode 100644
index 000000000000..4c91498ab117
--- /dev/null
+++ b/include/soc/fsl/qe/qe_tdm.h
@@ -0,0 +1,94 @@
+/*
+ * Internal header file for QE TDM mode routines.
+ *
+ * Copyright (C) 2016 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Authors: Zhao Qiang <qiang.zhao@nxp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version
+ */
+
+#ifndef CONFIG_QE_TDM_H
+#define CONFIG_QE_TDM_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>
+
+/* SI RAM entries */
+#define SIR_LAST 0x0001
+#define SIR_BYTE 0x0002
+#define SIR_CNT(x) ((x) << 2)
+#define SIR_CSEL(x) ((x) << 5)
+#define SIR_SGS 0x0200
+#define SIR_SWTR 0x4000
+#define SIR_MCC 0x8000
+#define SIR_IDLE 0
+
+/* SIxMR fields */
+#define SIMR_SAD(x) ((x) << 12)
+#define SIMR_SDM_NORMAL 0x0000
+#define SIMR_SDM_INTERNAL_LOOPBACK 0x0800
+#define SIMR_SDM_MASK 0x0c00
+#define SIMR_CRT 0x0040
+#define SIMR_SL 0x0020
+#define SIMR_CE 0x0010
+#define SIMR_FE 0x0008
+#define SIMR_GM 0x0004
+#define SIMR_TFSD(n) (n)
+#define SIMR_RFSD(n) ((n) << 8)
+
+enum tdm_ts_t {
+ TDM_TX_TS,
+ TDM_RX_TS
+};
+
+enum tdm_framer_t {
+ TDM_FRAMER_T1,
+ TDM_FRAMER_E1
+};
+
+enum tdm_mode_t {
+ TDM_INTERNAL_LOOPBACK,
+ TDM_NORMAL
+};
+
+struct si_mode_info {
+ u8 simr_rfsd;
+ u8 simr_tfsd;
+ u8 simr_crt;
+ u8 simr_sl;
+ u8 simr_ce;
+ u8 simr_fe;
+ u8 simr_gm;
+};
+
+struct ucc_tdm_info {
+ struct ucc_fast_info uf_info;
+ struct si_mode_info si_info;
+};
+
+struct ucc_tdm {
+ u16 tdm_port; /* port for this tdm:TDMA,TDMB */
+ u32 siram_entry_id;
+ u16 __iomem *siram;
+ struct si1 __iomem *si_regs;
+ enum tdm_framer_t tdm_framer_type;
+ enum tdm_mode_t tdm_mode;
+ u8 num_of_ts; /* the number of timeslots in this tdm frame */
+ u32 tx_ts_mask; /* tx time slot mask */
+ u32 rx_ts_mask; /* rx time slot mask */
+};
+
+int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
+ struct ucc_tdm_info *ut_info);
+void ucc_tdm_init(struct ucc_tdm *utdm, struct ucc_tdm_info *ut_info);
+#endif