keystone2: add keystone multicore navigator driver
Multicore navigator consists of Network Coprocessor (NetCP) and
Queue Manager sub system. More details on the hardware can
be obtained from the following links:-
Network Coprocessor: http://www.ti.com/lit/pdf/sprugz6
Multicore Navigator: http://www.ti.com/lit/pdf/sprugr9
Multicore navigator driver implements APIs to configure
the Queue Manager and NetCP Pkt DMA.
Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: WingMan Kwok <w-kwok2@ti.com>
Acked-by: Tom Rini <trini@ti.com>
diff --git a/arch/arm/include/asm/arch-keystone/keystone_nav.h b/arch/arm/include/asm/arch-keystone/keystone_nav.h
new file mode 100644
index 0000000..ab81eaf
--- /dev/null
+++ b/arch/arm/include/asm/arch-keystone/keystone_nav.h
@@ -0,0 +1,193 @@
+/*
+ * Multicore Navigator definitions
+ *
+ * (C) Copyright 2012-2014
+ * Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _KEYSTONE_NAV_H_
+#define _KEYSTONE_NAV_H_
+
+#include <asm/arch/hardware.h>
+#include <asm/io.h>
+
+enum soc_type_t {
+ k2hk
+};
+
+#define QM_OK 0
+#define QM_ERR -1
+#define QM_DESC_TYPE_HOST 0
+#define QM_DESC_PSINFO_IN_DESCR 0
+#define QM_DESC_DEFAULT_DESCINFO (QM_DESC_TYPE_HOST << 30) | \
+ (QM_DESC_PSINFO_IN_DESCR << 22)
+
+/* Packet Info */
+#define QM_DESC_PINFO_EPIB 1
+#define QM_DESC_PINFO_RETURN_OWN 1
+#define QM_DESC_DEFAULT_PINFO (QM_DESC_PINFO_EPIB << 31) | \
+ (QM_DESC_PINFO_RETURN_OWN << 15)
+
+struct qm_cfg_reg {
+ u32 revision;
+ u32 __pad1;
+ u32 divert;
+ u32 link_ram_base0;
+ u32 link_ram_size0;
+ u32 link_ram_base1;
+ u32 link_ram_size1;
+ u32 link_ram_base2;
+ u32 starvation[0];
+};
+
+struct descr_mem_setup_reg {
+ u32 base_addr;
+ u32 start_idx;
+ u32 desc_reg_size;
+ u32 _res0;
+};
+
+struct qm_reg_queue {
+ u32 entry_count;
+ u32 byte_count;
+ u32 packet_size;
+ u32 ptr_size_thresh;
+};
+
+struct qm_config {
+ /* QM module addresses */
+ u32 stat_cfg; /* status and config */
+ struct qm_reg_queue *queue; /* management region */
+ u32 mngr_vbusm; /* management region (VBUSM) */
+ u32 i_lram; /* internal linking RAM */
+ struct qm_reg_queue *proxy;
+ u32 status_ram;
+ struct qm_cfg_reg *mngr_cfg;
+ /* Queue manager config region */
+ u32 intd_cfg; /* QMSS INTD config region */
+ struct descr_mem_setup_reg *desc_mem;
+ /* descritor memory setup region*/
+ u32 region_num;
+ u32 pdsp_cmd; /* PDSP1 command interface */
+ u32 pdsp_ctl; /* PDSP1 control registers */
+ u32 pdsp_iram;
+ /* QM configuration parameters */
+
+ u32 qpool_num; /* */
+};
+
+struct qm_host_desc {
+ u32 desc_info;
+ u32 tag_info;
+ u32 packet_info;
+ u32 buff_len;
+ u32 buff_ptr;
+ u32 next_bdptr;
+ u32 orig_buff_len;
+ u32 orig_buff_ptr;
+ u32 timestamp;
+ u32 swinfo[3];
+ u32 ps_data[20];
+};
+
+#define HDESC_NUM 256
+
+int qm_init(void);
+void qm_close(void);
+void qm_push(struct qm_host_desc *hd, u32 qnum);
+struct qm_host_desc *qm_pop(u32 qnum);
+
+void qm_buff_push(struct qm_host_desc *hd, u32 qnum,
+ void *buff_ptr, u32 buff_len);
+
+struct qm_host_desc *qm_pop_from_free_pool(void);
+void queue_close(u32 qnum);
+
+/*
+ * DMA API
+ */
+#define CPDMA_REG_VAL_MAKE_RX_FLOW_A(einfo, psinfo, rxerr, desc, \
+ psloc, sopoff, qmgr, qnum) \
+ (((einfo & 1) << 30) | \
+ ((psinfo & 1) << 29) | \
+ ((rxerr & 1) << 28) | \
+ ((desc & 3) << 26) | \
+ ((psloc & 1) << 25) | \
+ ((sopoff & 0x1ff) << 16) | \
+ ((qmgr & 3) << 12) | \
+ ((qnum & 0xfff) << 0))
+
+#define CPDMA_REG_VAL_MAKE_RX_FLOW_D(fd0qm, fd0qnum, fd1qm, fd1qnum) \
+ (((fd0qm & 3) << 28) | \
+ ((fd0qnum & 0xfff) << 16) | \
+ ((fd1qm & 3) << 12) | \
+ ((fd1qnum & 0xfff) << 0))
+
+#define CPDMA_CHAN_A_ENABLE ((u32)1 << 31)
+#define CPDMA_CHAN_A_TDOWN (1 << 30)
+#define TDOWN_TIMEOUT_COUNT 100
+
+struct global_ctl_regs {
+ u32 revision;
+ u32 perf_control;
+ u32 emulation_control;
+ u32 priority_control;
+ u32 qm_base_addr[4];
+};
+
+struct tx_chan_regs {
+ u32 cfg_a;
+ u32 cfg_b;
+ u32 res[6];
+};
+
+struct rx_chan_regs {
+ u32 cfg_a;
+ u32 res[7];
+};
+
+struct rx_flow_regs {
+ u32 control;
+ u32 tags;
+ u32 tag_sel;
+ u32 fdq_sel[2];
+ u32 thresh[3];
+};
+
+struct pktdma_cfg {
+ struct global_ctl_regs *global;
+ struct tx_chan_regs *tx_ch;
+ u32 tx_ch_num;
+ struct rx_chan_regs *rx_ch;
+ u32 rx_ch_num;
+ u32 *tx_sched;
+ struct rx_flow_regs *rx_flows;
+ u32 rx_flow_num;
+
+ u32 rx_free_q;
+ u32 rx_rcv_q;
+ u32 tx_snd_q;
+
+ u32 rx_flow; /* flow that is used for RX */
+};
+
+/*
+ * packet dma user allocates memory for rx buffers
+ * and describe it in the following structure
+ */
+struct rx_buff_desc {
+ u8 *buff_ptr;
+ u32 num_buffs;
+ u32 buff_len;
+ u32 rx_flow;
+};
+
+int netcp_close(void);
+int netcp_init(struct rx_buff_desc *rx_buffers);
+int netcp_send(u32 *pkt, int num_bytes, u32 swinfo2);
+void *netcp_recv(u32 **pkt, int *num_bytes);
+void netcp_release_rxhd(void *hd);
+
+#endif /* _KEYSTONE_NAV_H_ */