/* * Generic library functions for the microengines found on the Intel * IXP2000 series of network processors. * * Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org> * Dedicated to Marija Kulikova. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of the * License, or (at your option) any later version. */ #ifndef __IXP2000_UENGINE_H #define __IXP2000_UENGINE_H extern u32 ixp2000_uengine_mask; struct ixp2000_uengine_code { u32 cpu_model_bitmask; u8 cpu_min_revision; u8 cpu_max_revision; u32 uengine_parameters; struct ixp2000_reg_value { int reg; u32 value; } *initial_reg_values; int num_insns; u8 *insns; }; u32 ixp2000_uengine_csr_read(int uengine, int offset); void ixp2000_uengine_csr_write(int uengine, int offset, u32 value); void ixp2000_uengine_reset(u32 uengine_mask); void ixp2000_uengine_set_mode(int uengine, u32 mode); void ixp2000_uengine_load_microcode(int uengine, u8 *ucode, int insns); void ixp2000_uengine_init_context(int uengine, int context, int pc); void ixp2000_uengine_start_contexts(int uengine, u8 ctx_mask); void ixp2000_uengine_stop_contexts(int uengine, u8 ctx_mask); int ixp2000_uengine_load(int uengine, struct ixp2000_uengine_code *c); #define IXP2000_UENGINE_8_CONTEXTS 0x00000000 #define IXP2000_UENGINE_4_CONTEXTS 0x80000000 #define IXP2000_UENGINE_PRN_UPDATE_EVERY 0x40000000 #define IXP2000_UENGINE_PRN_UPDATE_ON_ACCESS 0x00000000 #define IXP2000_UENGINE_NN_FROM_SELF 0x00100000 #define IXP2000_UENGINE_NN_FROM_PREVIOUS 0x00000000 #define IXP2000_UENGINE_ASSERT_EMPTY_AT_3 0x000c0000 #define IXP2000_UENGINE_ASSERT_EMPTY_AT_2 0x00080000 #define IXP2000_UENGINE_ASSERT_EMPTY_AT_1 0x00040000 #define IXP2000_UENGINE_ASSERT_EMPTY_AT_0 0x00000000 #define IXP2000_UENGINE_LM_ADDR1_GLOBAL 0x00020000 #define IXP2000_UENGINE_LM_ADDR1_PER_CONTEXT 0x00000000 #define IXP2000_UENGINE_LM_ADDR0_GLOBAL 0x00010000 #define IXP2000_UENGINE_LM_ADDR0_PER_CONTEXT 0x00000000 #endif