244 lines
5.5 KiB
C
244 lines
5.5 KiB
C
/******************************************************************************
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**
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** FILE NAME : ifxmips_atm_ar9.c
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** PROJECT : UEIP
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** MODULES : ATM
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**
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** DATE : 7 Jul 2009
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** AUTHOR : Xu Liang
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** DESCRIPTION : ATM driver common source file (core functions)
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** COPYRIGHT : Copyright (c) 2006
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** Infineon Technologies AG
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** Am Campeon 1-12, 85579 Neubiberg, Germany
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** HISTORY
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** $Date $Author $Comment
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** 07 JUL 2009 Xu Liang Init Version
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*******************************************************************************/
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/*
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* ####################################
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* Head File
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* ####################################
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*/
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/*
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* Common Head File
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/version.h>
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#include <linux/types.h>
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#include <linux/errno.h>
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#include <linux/proc_fs.h>
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#include <linux/init.h>
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#include <linux/ioctl.h>
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#include <asm/delay.h>
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/*
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* Chip Specific Head File
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*/
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#include "ifxmips_atm_core.h"
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#include "ifxmips_atm_fw_ar9.h"
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#include "ifxmips_atm_fw_regs_ar9.h"
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#include <lantiq_soc.h>
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/*
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* ####################################
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* Definition
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* ####################################
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*/
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/*
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* EMA Settings
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*/
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#define EMA_CMD_BUF_LEN 0x0040
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#define EMA_CMD_BASE_ADDR (0x00003B80 << 2)
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#define EMA_DATA_BUF_LEN 0x0100
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#define EMA_DATA_BASE_ADDR (0x00003C00 << 2)
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#define EMA_WRITE_BURST 0x2
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#define EMA_READ_BURST 0x2
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/*
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* ####################################
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* Declaration
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* ####################################
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*/
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/*
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* Hardware Init/Uninit Functions
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*/
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static inline void init_pmu(void);
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static inline void uninit_pmu(void);
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static inline void reset_ppe(void);
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static inline void init_ema(void);
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static inline void init_mailbox(void);
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static inline void clear_share_buffer(void);
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/*
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* ####################################
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* Local Variable
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* ####################################
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*/
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/*
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* ####################################
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* Local Function
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* ####################################
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*/
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#define IFX_PMU_MODULE_PPE_SLL01 BIT(19)
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#define IFX_PMU_MODULE_PPE_TC BIT(21)
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#define IFX_PMU_MODULE_PPE_EMA BIT(22)
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#define IFX_PMU_MODULE_PPE_QSB BIT(18)
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#define IFX_PMU_MODULE_TPE BIT(13)
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#define IFX_PMU_MODULE_DSL_DFE BIT(9)
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static inline void init_pmu(void)
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{
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ltq_pmu_enable(IFX_PMU_MODULE_PPE_SLL01 |
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IFX_PMU_MODULE_PPE_TC |
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IFX_PMU_MODULE_PPE_EMA |
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IFX_PMU_MODULE_PPE_QSB |
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IFX_PMU_MODULE_TPE |
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IFX_PMU_MODULE_DSL_DFE);
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}
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static inline void uninit_pmu(void)
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{
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}
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static inline void reset_ppe(void)
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{
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#ifdef MODULE
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// reset PPE
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// ifx_rcu_rst(IFX_RCU_DOMAIN_PPE, IFX_RCU_MODULE_ATM);
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#endif
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}
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static inline void init_ema(void)
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{
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IFX_REG_W32((EMA_CMD_BUF_LEN << 16) | (EMA_CMD_BASE_ADDR >> 2), EMA_CMDCFG);
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IFX_REG_W32((EMA_DATA_BUF_LEN << 16) | (EMA_DATA_BASE_ADDR >> 2), EMA_DATACFG);
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IFX_REG_W32(0x000000FF, EMA_IER);
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IFX_REG_W32(EMA_READ_BURST | (EMA_WRITE_BURST << 2), EMA_CFG);
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}
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static inline void init_mailbox(void)
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{
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IFX_REG_W32(0xFFFFFFFF, MBOX_IGU1_ISRC);
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IFX_REG_W32(0x00000000, MBOX_IGU1_IER);
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IFX_REG_W32(0xFFFFFFFF, MBOX_IGU3_ISRC);
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IFX_REG_W32(0x00000000, MBOX_IGU3_IER);
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}
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static inline void clear_share_buffer(void)
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{
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volatile u32 *p = SB_RAM0_ADDR(0);
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unsigned int i;
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for ( i = 0; i < SB_RAM0_DWLEN + SB_RAM1_DWLEN + SB_RAM2_DWLEN + SB_RAM3_DWLEN + SB_RAM4_DWLEN; i++ )
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IFX_REG_W32(0, p++);
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}
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static inline int pp32_download_code(u32 *code_src, unsigned int code_dword_len, u32 *data_src, unsigned int data_dword_len)
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{
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volatile u32 *dest;
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if ( code_src == 0 || ((unsigned long)code_src & 0x03) != 0
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|| data_src == 0 || ((unsigned long)data_src & 0x03) != 0 )
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return -1;
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if ( code_dword_len <= CDM_CODE_MEMORYn_DWLEN(0) )
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IFX_REG_W32(0x00, CDM_CFG);
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else
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IFX_REG_W32(0x04, CDM_CFG);
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/* copy code */
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dest = CDM_CODE_MEMORY(0, 0);
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while ( code_dword_len-- > 0 )
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IFX_REG_W32(*code_src++, dest++);
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/* copy data */
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dest = CDM_DATA_MEMORY(0, 0);
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while ( data_dword_len-- > 0 )
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IFX_REG_W32(*data_src++, dest++);
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return 0;
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}
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void ar9_fw_ver(unsigned int *major, unsigned int *minor)
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{
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ASSERT(major != NULL, "pointer is NULL");
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ASSERT(minor != NULL, "pointer is NULL");
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*major = FW_VER_ID->major;
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*minor = FW_VER_ID->minor;
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}
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void ar9_init(void)
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{
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init_pmu();
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reset_ppe();
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init_ema();
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init_mailbox();
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clear_share_buffer();
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}
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void ar9_shutdown(void)
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{
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ltq_pmu_disable(IFX_PMU_MODULE_PPE_SLL01 |
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IFX_PMU_MODULE_PPE_TC |
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IFX_PMU_MODULE_PPE_EMA |
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IFX_PMU_MODULE_PPE_QSB |
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IFX_PMU_MODULE_TPE |
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IFX_PMU_MODULE_DSL_DFE);
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}
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int ar9_start(int pp32)
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{
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int ret;
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ret = pp32_download_code(ar9_fw_bin, sizeof(ar9_fw_bin) / sizeof(*ar9_fw_bin),
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ar9_fw_data, sizeof(ar9_fw_data) / sizeof(*ar9_fw_data));
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if ( ret != 0 )
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return ret;
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IFX_REG_W32(DBG_CTRL_RESTART, PP32_DBG_CTRL(0));
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udelay(10);
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return 0;
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}
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void ar9_stop(int pp32)
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{
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IFX_REG_W32(DBG_CTRL_STOP, PP32_DBG_CTRL(0));
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}
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struct ltq_atm_ops ar9_ops = {
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.init = ar9_init,
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.shutdown = ar9_shutdown,
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.start = ar9_start,
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.stop = ar9_stop,
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.fw_ver = ar9_fw_ver,
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};
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