/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1992-1997,2000-2006 Silicon Graphics, Inc. All Rights
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* Reserved.
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*/
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#ifndef _ASM_IA64_SN_XTALK_XBOW_H
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#define _ASM_IA64_SN_XTALK_XBOW_H
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#define XBOW_PORT_8 0x8
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#define XBOW_PORT_C 0xc
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#define XBOW_PORT_F 0xf
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#define MAX_XBOW_PORTS 8 /* number of ports on xbow chip */
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#define BASE_XBOW_PORT XBOW_PORT_8 /* Lowest external port */
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#define XBOW_CREDIT 4
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#define MAX_XBOW_NAME 16
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/* Register set for each xbow link */
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typedef volatile struct xb_linkregs_s {
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/*
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* we access these through synergy unswizzled space, so the address
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* gets twiddled (i.e. references to 0x4 actually go to 0x0 and vv.)
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* That's why we put the register first and filler second.
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*/
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u32 link_ibf;
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u32 filler0; /* filler for proper alignment */
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u32 link_control;
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u32 filler1;
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u32 link_status;
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u32 filler2;
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u32 link_arb_upper;
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u32 filler3;
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u32 link_arb_lower;
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u32 filler4;
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u32 link_status_clr;
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u32 filler5;
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u32 link_reset;
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u32 filler6;
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u32 link_aux_status;
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u32 filler7;
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} xb_linkregs_t;
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typedef volatile struct xbow_s {
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/* standard widget configuration 0x000000-0x000057 */
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struct widget_cfg xb_widget; /* 0x000000 */
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/* helper fieldnames for accessing bridge widget */
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#define xb_wid_id xb_widget.w_id
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#define xb_wid_stat xb_widget.w_status
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#define xb_wid_err_upper xb_widget.w_err_upper_addr
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#define xb_wid_err_lower xb_widget.w_err_lower_addr
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#define xb_wid_control xb_widget.w_control
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#define xb_wid_req_timeout xb_widget.w_req_timeout
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#define xb_wid_int_upper xb_widget.w_intdest_upper_addr
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#define xb_wid_int_lower xb_widget.w_intdest_lower_addr
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#define xb_wid_err_cmdword xb_widget.w_err_cmd_word
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#define xb_wid_llp xb_widget.w_llp_cfg
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#define xb_wid_stat_clr xb_widget.w_tflush
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/*
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* we access these through synergy unswizzled space, so the address
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* gets twiddled (i.e. references to 0x4 actually go to 0x0 and vv.)
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* That's why we put the register first and filler second.
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*/
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/* xbow-specific widget configuration 0x000058-0x0000FF */
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u32 xb_wid_arb_reload; /* 0x00005C */
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u32 _pad_000058;
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u32 xb_perf_ctr_a; /* 0x000064 */
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u32 _pad_000060;
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u32 xb_perf_ctr_b; /* 0x00006c */
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u32 _pad_000068;
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u32 xb_nic; /* 0x000074 */
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u32 _pad_000070;
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/* Xbridge only */
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u32 xb_w0_rst_fnc; /* 0x00007C */
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u32 _pad_000078;
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u32 xb_l8_rst_fnc; /* 0x000084 */
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u32 _pad_000080;
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u32 xb_l9_rst_fnc; /* 0x00008c */
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u32 _pad_000088;
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u32 xb_la_rst_fnc; /* 0x000094 */
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u32 _pad_000090;
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u32 xb_lb_rst_fnc; /* 0x00009c */
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u32 _pad_000098;
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u32 xb_lc_rst_fnc; /* 0x0000a4 */
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u32 _pad_0000a0;
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u32 xb_ld_rst_fnc; /* 0x0000ac */
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u32 _pad_0000a8;
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u32 xb_le_rst_fnc; /* 0x0000b4 */
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u32 _pad_0000b0;
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u32 xb_lf_rst_fnc; /* 0x0000bc */
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u32 _pad_0000b8;
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u32 xb_lock; /* 0x0000c4 */
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u32 _pad_0000c0;
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u32 xb_lock_clr; /* 0x0000cc */
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u32 _pad_0000c8;
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/* end of Xbridge only */
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u32 _pad_0000d0[12];
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/* Link Specific Registers, port 8..15 0x000100-0x000300 */
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xb_linkregs_t xb_link_raw[MAX_XBOW_PORTS];
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} xbow_t;
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#define xb_link(p) xb_link_raw[(p) & (MAX_XBOW_PORTS - 1)]
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#define XB_FLAGS_EXISTS 0x1 /* device exists */
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#define XB_FLAGS_MASTER 0x2
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#define XB_FLAGS_SLAVE 0x0
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#define XB_FLAGS_GBR 0x4
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#define XB_FLAGS_16BIT 0x8
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#define XB_FLAGS_8BIT 0x0
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/* is widget port number valid? (based on version 7.0 of xbow spec) */
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#define XBOW_WIDGET_IS_VALID(wid) ((wid) >= XBOW_PORT_8 && (wid) <= XBOW_PORT_F)
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/* whether to use upper or lower arbitration register, given source widget id */
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#define XBOW_ARB_IS_UPPER(wid) ((wid) >= XBOW_PORT_8 && (wid) <= XBOW_PORT_B)
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#define XBOW_ARB_IS_LOWER(wid) ((wid) >= XBOW_PORT_C && (wid) <= XBOW_PORT_F)
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/* offset of arbitration register, given source widget id */
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#define XBOW_ARB_OFF(wid) (XBOW_ARB_IS_UPPER(wid) ? 0x1c : 0x24)
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#define XBOW_WID_ID WIDGET_ID
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#define XBOW_WID_STAT WIDGET_STATUS
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#define XBOW_WID_ERR_UPPER WIDGET_ERR_UPPER_ADDR
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#define XBOW_WID_ERR_LOWER WIDGET_ERR_LOWER_ADDR
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#define XBOW_WID_CONTROL WIDGET_CONTROL
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#define XBOW_WID_REQ_TO WIDGET_REQ_TIMEOUT
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#define XBOW_WID_INT_UPPER WIDGET_INTDEST_UPPER_ADDR
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#define XBOW_WID_INT_LOWER WIDGET_INTDEST_LOWER_ADDR
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#define XBOW_WID_ERR_CMDWORD WIDGET_ERR_CMD_WORD
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#define XBOW_WID_LLP WIDGET_LLP_CFG
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#define XBOW_WID_STAT_CLR WIDGET_TFLUSH
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#define XBOW_WID_ARB_RELOAD 0x5c
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#define XBOW_WID_PERF_CTR_A 0x64
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#define XBOW_WID_PERF_CTR_B 0x6c
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#define XBOW_WID_NIC 0x74
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/* Xbridge only */
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#define XBOW_W0_RST_FNC 0x00007C
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#define XBOW_L8_RST_FNC 0x000084
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#define XBOW_L9_RST_FNC 0x00008c
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#define XBOW_LA_RST_FNC 0x000094
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#define XBOW_LB_RST_FNC 0x00009c
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#define XBOW_LC_RST_FNC 0x0000a4
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#define XBOW_LD_RST_FNC 0x0000ac
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#define XBOW_LE_RST_FNC 0x0000b4
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#define XBOW_LF_RST_FNC 0x0000bc
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#define XBOW_RESET_FENCE(x) ((x) > 7 && (x) < 16) ? \
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(XBOW_W0_RST_FNC + ((x) - 7) * 8) : \
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((x) == 0) ? XBOW_W0_RST_FNC : 0
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#define XBOW_LOCK 0x0000c4
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#define XBOW_LOCK_CLR 0x0000cc
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/* End of Xbridge only */
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/* used only in ide, but defined here within the reserved portion */
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/* of the widget0 address space (before 0xf4) */
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#define XBOW_WID_UNDEF 0xe4
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/* xbow link register set base, legal value for x is 0x8..0xf */
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#define XB_LINK_BASE 0x100
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#define XB_LINK_OFFSET 0x40
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#define XB_LINK_REG_BASE(x) (XB_LINK_BASE + ((x) & (MAX_XBOW_PORTS - 1)) * XB_LINK_OFFSET)
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#define XB_LINK_IBUF_FLUSH(x) (XB_LINK_REG_BASE(x) + 0x4)
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#define XB_LINK_CTRL(x) (XB_LINK_REG_BASE(x) + 0xc)
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#define XB_LINK_STATUS(x) (XB_LINK_REG_BASE(x) + 0x14)
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#define XB_LINK_ARB_UPPER(x) (XB_LINK_REG_BASE(x) + 0x1c)
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#define XB_LINK_ARB_LOWER(x) (XB_LINK_REG_BASE(x) + 0x24)
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#define XB_LINK_STATUS_CLR(x) (XB_LINK_REG_BASE(x) + 0x2c)
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#define XB_LINK_RESET(x) (XB_LINK_REG_BASE(x) + 0x34)
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#define XB_LINK_AUX_STATUS(x) (XB_LINK_REG_BASE(x) + 0x3c)
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/* link_control(x) */
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#define XB_CTRL_LINKALIVE_IE 0x80000000 /* link comes alive */
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/* reserved: 0x40000000 */
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#define XB_CTRL_PERF_CTR_MODE_MSK 0x30000000 /* perf counter mode */
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#define XB_CTRL_IBUF_LEVEL_MSK 0x0e000000 /* input packet buffer
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level */
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#define XB_CTRL_8BIT_MODE 0x01000000 /* force link into 8
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bit mode */
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#define XB_CTRL_BAD_LLP_PKT 0x00800000 /* force bad LLP
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packet */
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#define XB_CTRL_WIDGET_CR_MSK 0x007c0000 /* LLP widget credit
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mask */
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#define XB_CTRL_WIDGET_CR_SHFT 18 /* LLP widget credit
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shift */
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#define XB_CTRL_ILLEGAL_DST_IE 0x00020000 /* illegal destination
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*/
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#define XB_CTRL_OALLOC_IBUF_IE 0x00010000 /* overallocated input
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buffer */
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/* reserved: 0x0000fe00 */
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#define XB_CTRL_BNDWDTH_ALLOC_IE 0x00000100 /* bandwidth alloc */
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#define XB_CTRL_RCV_CNT_OFLOW_IE 0x00000080 /* rcv retry overflow */
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#define XB_CTRL_XMT_CNT_OFLOW_IE 0x00000040 /* xmt retry overflow */
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#define XB_CTRL_XMT_MAX_RTRY_IE 0x00000020 /* max transmit retry */
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#define XB_CTRL_RCV_IE 0x00000010 /* receive */
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#define XB_CTRL_XMT_RTRY_IE 0x00000008 /* transmit retry */
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/* reserved: 0x00000004 */
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#define XB_CTRL_MAXREQ_TOUT_IE 0x00000002 /* maximum request
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timeout */
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#define XB_CTRL_SRC_TOUT_IE 0x00000001 /* source timeout */
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/* link_status(x) */
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#define XB_STAT_LINKALIVE XB_CTRL_LINKALIVE_IE
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/* reserved: 0x7ff80000 */
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#define XB_STAT_MULTI_ERR 0x00040000 /* multi error */
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#define XB_STAT_ILLEGAL_DST_ERR XB_CTRL_ILLEGAL_DST_IE
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#define XB_STAT_OALLOC_IBUF_ERR XB_CTRL_OALLOC_IBUF_IE
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#define XB_STAT_BNDWDTH_ALLOC_ID_MSK 0x0000ff00 /* port bitmask */
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#define XB_STAT_RCV_CNT_OFLOW_ERR XB_CTRL_RCV_CNT_OFLOW_IE
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#define XB_STAT_XMT_CNT_OFLOW_ERR XB_CTRL_XMT_CNT_OFLOW_IE
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#define XB_STAT_XMT_MAX_RTRY_ERR XB_CTRL_XMT_MAX_RTRY_IE
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#define XB_STAT_RCV_ERR XB_CTRL_RCV_IE
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#define XB_STAT_XMT_RTRY_ERR XB_CTRL_XMT_RTRY_IE
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/* reserved: 0x00000004 */
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#define XB_STAT_MAXREQ_TOUT_ERR XB_CTRL_MAXREQ_TOUT_IE
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#define XB_STAT_SRC_TOUT_ERR XB_CTRL_SRC_TOUT_IE
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/* link_aux_status(x) */
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#define XB_AUX_STAT_RCV_CNT 0xff000000
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#define XB_AUX_STAT_XMT_CNT 0x00ff0000
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#define XB_AUX_STAT_TOUT_DST 0x0000ff00
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#define XB_AUX_LINKFAIL_RST_BAD 0x00000040
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#define XB_AUX_STAT_PRESENT 0x00000020
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#define XB_AUX_STAT_PORT_WIDTH 0x00000010
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/* reserved: 0x0000000f */
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/*
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* link_arb_upper/link_arb_lower(x), (reg) should be the link_arb_upper
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* register if (x) is 0x8..0xb, link_arb_lower if (x) is 0xc..0xf
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*/
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#define XB_ARB_GBR_MSK 0x1f
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#define XB_ARB_RR_MSK 0x7
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#define XB_ARB_GBR_SHFT(x) (((x) & 0x3) * 8)
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#define XB_ARB_RR_SHFT(x) (((x) & 0x3) * 8 + 5)
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#define XB_ARB_GBR_CNT(reg,x) ((reg) >> XB_ARB_GBR_SHFT(x) & XB_ARB_GBR_MSK)
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#define XB_ARB_RR_CNT(reg,x) ((reg) >> XB_ARB_RR_SHFT(x) & XB_ARB_RR_MSK)
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/* XBOW_WID_STAT */
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#define XB_WID_STAT_LINK_INTR_SHFT (24)
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#define XB_WID_STAT_LINK_INTR_MASK (0xFF << XB_WID_STAT_LINK_INTR_SHFT)
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#define XB_WID_STAT_LINK_INTR(x) \
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(0x1 << (((x)&7) + XB_WID_STAT_LINK_INTR_SHFT))
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#define XB_WID_STAT_WIDGET0_INTR 0x00800000
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#define XB_WID_STAT_SRCID_MASK 0x000003c0 /* Xbridge only */
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#define XB_WID_STAT_REG_ACC_ERR 0x00000020
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#define XB_WID_STAT_RECV_TOUT 0x00000010 /* Xbridge only */
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#define XB_WID_STAT_ARB_TOUT 0x00000008 /* Xbridge only */
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#define XB_WID_STAT_XTALK_ERR 0x00000004
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#define XB_WID_STAT_DST_TOUT 0x00000002 /* Xbridge only */
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#define XB_WID_STAT_MULTI_ERR 0x00000001
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#define XB_WID_STAT_SRCID_SHFT 6
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/* XBOW_WID_CONTROL */
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#define XB_WID_CTRL_REG_ACC_IE XB_WID_STAT_REG_ACC_ERR
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#define XB_WID_CTRL_RECV_TOUT XB_WID_STAT_RECV_TOUT
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#define XB_WID_CTRL_ARB_TOUT XB_WID_STAT_ARB_TOUT
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#define XB_WID_CTRL_XTALK_IE XB_WID_STAT_XTALK_ERR
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/* XBOW_WID_INT_UPPER */
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/* defined in xwidget.h for WIDGET_INTDEST_UPPER_ADDR */
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/* XBOW WIDGET part number, in the ID register */
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#define XBOW_WIDGET_PART_NUM 0x0 /* crossbow */
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#define XXBOW_WIDGET_PART_NUM 0xd000 /* Xbridge */
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#define XBOW_WIDGET_MFGR_NUM 0x0
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#define XXBOW_WIDGET_MFGR_NUM 0x0
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#define PXBOW_WIDGET_PART_NUM 0xd100 /* PIC */
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#define XBOW_REV_1_0 0x1 /* xbow rev 1.0 is "1" */
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#define XBOW_REV_1_1 0x2 /* xbow rev 1.1 is "2" */
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#define XBOW_REV_1_2 0x3 /* xbow rev 1.2 is "3" */
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#define XBOW_REV_1_3 0x4 /* xbow rev 1.3 is "4" */
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#define XBOW_REV_2_0 0x5 /* xbow rev 2.0 is "5" */
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#define XXBOW_PART_REV_1_0 (XXBOW_WIDGET_PART_NUM << 4 | 0x1 )
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#define XXBOW_PART_REV_2_0 (XXBOW_WIDGET_PART_NUM << 4 | 0x2 )
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/* XBOW_WID_ARB_RELOAD */
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#define XBOW_WID_ARB_RELOAD_INT 0x3f /* GBR reload interval */
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#define IS_XBRIDGE_XBOW(wid) \
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(XWIDGET_PART_NUM(wid) == XXBOW_WIDGET_PART_NUM && \
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XWIDGET_MFG_NUM(wid) == XXBOW_WIDGET_MFGR_NUM)
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#define IS_PIC_XBOW(wid) \
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(XWIDGET_PART_NUM(wid) == PXBOW_WIDGET_PART_NUM && \
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XWIDGET_MFG_NUM(wid) == XXBOW_WIDGET_MFGR_NUM)
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#define XBOW_WAR_ENABLED(pv, widid) ((1 << XWIDGET_REV_NUM(widid)) & pv)
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#endif /* _ASM_IA64_SN_XTALK_XBOW_H */
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