package/system/ltq-dsl/src/ifxmips_atm_amazon_se.c

   1 /******************************************************************************
   2 **
   3 ** FILE NAME    : ifxmips_atm_amazon_se.c
   4 ** PROJECT      : UEIP
   5 ** MODULES      : ATM
   6 **
   7 ** DATE         : 7 Jul 2009
   8 ** AUTHOR       : Xu Liang
   9 ** DESCRIPTION  : ATM driver common source file (core functions)
  10 ** COPYRIGHT    :       Copyright (c) 2006
  11 **                      Infineon Technologies AG
  12 **                      Am Campeon 1-12, 85579 Neubiberg, Germany
  13 **
  14 **    This program is free software; you can redistribute it and/or modify
  15 **    it under the terms of the GNU General Public License as published by
  16 **    the Free Software Foundation; either version 2 of the License, or
  17 **    (at your option) any later version.
  18 **
  19 ** HISTORY
  20 ** $Date        $Author         $Comment
  21 ** 07 JUL 2009  Xu Liang        Init Version
  22 *******************************************************************************/
  23
  24
  25
  26 /*
  27  * ####################################
  28  *              Head File
  29  * ####################################
  30  */
  31
  32 /*
  33  *  Common Head File
  34  */
  35 #include <linux/kernel.h>
  36 #include <linux/module.h>
  37 #include <linux/version.h>
  38 #include <linux/types.h>
  39 #include <linux/errno.h>
  40 #include <linux/proc_fs.h>
  41 #include <linux/init.h>
  42 #include <linux/ioctl.h>
  43 #include <linux/clk.h>
  44 #include <asm/delay.h>
  45
  46 /*
  47  *  Chip Specific Head File
  48  */
  49 #include <lantiq_soc.h>
  50 #include "ifxmips_compat.h"
  51 #include "ifxmips_atm_core.h"
  52 #include "ifxmips_atm_fw_amazon_se.h"
  53
  54
  55
  56 /*
  57  * ####################################
  58  *              Definition
  59  * ####################################
  60  */
  61
  62 /*
  63  *  EMA Settings
  64  */
  65 #define EMA_CMD_BUF_LEN      0x0040
  66 #define EMA_CMD_BASE_ADDR    (0x00001580 << 2)
  67 #define EMA_DATA_BUF_LEN     0x0100
  68 #define EMA_DATA_BASE_ADDR   (0x00000B00 << 2)
  69 #define EMA_WRITE_BURST      0x2
  70 #define EMA_READ_BURST       0x2
  71
  72
  73
  74 /*
  75  * ####################################
  76  *             Declaration
  77  * ####################################
  78  */
  79
  80 /*
  81  *  Hardware Init/Uninit Functions
  82  */
  83 static inline void init_pmu(void);
  84 static inline void uninit_pmu(void);
  85 static inline void reset_ppe(void);
  86 static inline void init_ema(void);
  87 static inline void init_mailbox(void);
  88 static inline void init_atm_tc(void);
  89 static inline void clear_share_buffer(void);
  90
  91
  92
  93 /*
  94  * ####################################
  95  *            Local Variable
  96  * ####################################
  97  */
  98
  99
 100
 101 /*
 102  * ####################################
 103  *            Local Function
 104  * ####################################
 105  */
 106
 107 static inline void init_pmu(void)
 108 {
 109     //*(unsigned long *)0xBF10201C &= ~((1 << 15) | (1 << 13) | (1 << 9));
 110     //PPE_TOP_PMU_SETUP(IFX_PMU_ENABLE);
 111 /*    PPE_SLL01_PMU_SETUP(IFX_PMU_ENABLE);
 112     PPE_TC_PMU_SETUP(IFX_PMU_ENABLE);
 113     PPE_EMA_PMU_SETUP(IFX_PMU_ENABLE);
 114     //PPE_QSB_PMU_SETUP(IFX_PMU_ENABLE);
 115     PPE_TPE_PMU_SETUP(IFX_PMU_ENABLE);
 116     DSL_DFE_PMU_SETUP(IFX_PMU_ENABLE);*/
 117         struct clk *clk = clk_get_sys("ltq_dsl", NULL);
 118         clk_enable(clk);
 119 }
 120
 121 static inline void uninit_pmu(void)
 122 {
 123 /*    PPE_SLL01_PMU_SETUP(IFX_PMU_DISABLE);
 124     PPE_TC_PMU_SETUP(IFX_PMU_DISABLE);
 125     PPE_EMA_PMU_SETUP(IFX_PMU_DISABLE);
 126     //PPE_QSB_PMU_SETUP(IFX_PMU_DISABLE);
 127     PPE_TPE_PMU_SETUP(IFX_PMU_DISABLE);
 128     DSL_DFE_PMU_SETUP(IFX_PMU_DISABLE);
 129     //PPE_TOP_PMU_SETUP(IFX_PMU_DISABLE);*/
 130         struct clk *clk = clk_get_sys("ltq_dsl", NULL);
 131         clk_disable(clk);
 132 }
 133
 134 static inline void reset_ppe(void)
 135 {
 136 #ifdef MODULE
 137 /*    unsigned int etop_cfg;
 138     unsigned int etop_mdio_cfg;
 139     unsigned int etop_ig_plen_ctrl;
 140     unsigned int enet_mac_cfg;
 141
 142     etop_cfg            = *IFX_PP32_ETOP_CFG;
 143     etop_mdio_cfg       = *IFX_PP32_ETOP_MDIO_CFG;
 144     etop_ig_plen_ctrl   = *IFX_PP32_ETOP_IG_PLEN_CTRL;
 145     enet_mac_cfg        = *IFX_PP32_ENET_MAC_CFG;
 146
 147     *IFX_PP32_ETOP_CFG  = (*IFX_PP32_ETOP_CFG & ~0x03C0) | 0x0001;
 148
 149     //  reset PPE
 150     ifx_rcu_rst(IFX_RCU_DOMAIN_PPE, IFX_RCU_MODULE_ATM);
 151
 152     *IFX_PP32_ETOP_MDIO_CFG     = etop_mdio_cfg;
 153     *IFX_PP32_ETOP_IG_PLEN_CTRL = etop_ig_plen_ctrl;
 154     *IFX_PP32_ENET_MAC_CFG      = enet_mac_cfg;
 155     *IFX_PP32_ETOP_CFG          = etop_cfg;*/
 156 #endif
 157 }
 158
 159 static inline void init_ema(void)
 160 {
 161     IFX_REG_W32((EMA_CMD_BUF_LEN << 16) | (EMA_CMD_BASE_ADDR >> 2), EMA_CMDCFG);
 162     IFX_REG_W32((EMA_DATA_BUF_LEN << 16) | (EMA_DATA_BASE_ADDR >> 2), EMA_DATACFG);
 163     IFX_REG_W32(0x000000FF, EMA_IER);
 164     IFX_REG_W32(EMA_READ_BURST | (EMA_WRITE_BURST << 2), EMA_CFG);
 165 }
 166
 167 static inline void init_mailbox(void)
 168 {
 169     IFX_REG_W32(0xFFFFFFFF, MBOX_IGU1_ISRC);
 170     IFX_REG_W32(0x00000000, MBOX_IGU1_IER);
 171     IFX_REG_W32(0xFFFFFFFF, MBOX_IGU3_ISRC);
 172     IFX_REG_W32(0x00000000, MBOX_IGU3_IER);
 173 }
 174
 175 static inline void init_atm_tc(void)
 176 {
 177     IFX_REG_W32(0x0000,     DREG_AT_CTRL);
 178     IFX_REG_W32(0x0000,     DREG_AR_CTRL);
 179     IFX_REG_W32(0x0,        DREG_AT_IDLE0);
 180     IFX_REG_W32(0x0,        DREG_AT_IDLE1);
 181     IFX_REG_W32(0x0,        DREG_AR_IDLE0);
 182     IFX_REG_W32(0x0,        DREG_AR_IDLE1);
 183     IFX_REG_W32(0x40,       RFBI_CFG);
 184     IFX_REG_W32(0x0700,     SFSM_DBA0);
 185     IFX_REG_W32(0x0818,     SFSM_DBA1);
 186     IFX_REG_W32(0x0930,     SFSM_CBA0);
 187     IFX_REG_W32(0x0944,     SFSM_CBA1);
 188     IFX_REG_W32(0x14014,    SFSM_CFG0);
 189     IFX_REG_W32(0x14014,    SFSM_CFG1);
 190     IFX_REG_W32(0x0958,     FFSM_DBA0);
 191     IFX_REG_W32(0x09AC,     FFSM_DBA1);
 192     IFX_REG_W32(0x10006,    FFSM_CFG0);
 193     IFX_REG_W32(0x10006,    FFSM_CFG1);
 194     IFX_REG_W32(0x00000001, FFSM_IDLE_HEAD_BC0);
 195     IFX_REG_W32(0x00000001, FFSM_IDLE_HEAD_BC1);
 196 }
 197
 198 static inline void clear_share_buffer(void)
 199 {
 200     volatile u32 *p = SB_RAM0_ADDR(0);
 201     unsigned int i;
 202
 203     for ( i = 0; i < SB_RAM0_DWLEN + SB_RAM1_DWLEN; i++ )
 204         IFX_REG_W32(0, p++);
 205 }
 206
 207 /*
 208  *  Description:
 209  *    Download PPE firmware binary code.
 210  *  Input:
 211  *    src       --- u32 *, binary code buffer
 212  *    dword_len --- unsigned int, binary code length in DWORD (32-bit)
 213  *  Output:
 214  *    int       --- IFX_SUCCESS:    Success
 215  *                  else:           Error Code
 216  */
 217 static inline int pp32_download_code(u32 *code_src, unsigned int code_dword_len, u32 *data_src, unsigned int data_dword_len)
 218 {
 219     volatile u32 *dest;
 220
 221     if ( code_src == 0 || ((unsigned long)code_src & 0x03) != 0
 222         || data_src == 0 || ((unsigned long)data_src & 0x03) != 0 )
 223         return IFX_ERROR;
 224
 225     if ( code_dword_len <= CDM_CODE_MEMORYn_DWLEN(0) )
 226         IFX_REG_W32(0x00, CDM_CFG);
 227     else
 228         IFX_REG_W32(0x04, CDM_CFG);
 229
 230     /*  copy code   */
 231     dest = CDM_CODE_MEMORY(0, 0);
 232     while ( code_dword_len-- > 0 )
 233         IFX_REG_W32(*code_src++, dest++);
 234
 235     /*  copy data   */
 236     dest = CDM_DATA_MEMORY(0, 0);
 237     while ( data_dword_len-- > 0 )
 238         IFX_REG_W32(*data_src++, dest++);
 239
 240     return IFX_SUCCESS;
 241 }
 242
 243
 244
 245 /*
 246  * ####################################
 247  *           Global Function
 248  * ####################################
 249  */
 250
 251 extern void ifx_atm_get_fw_ver(unsigned int *major, unsigned int *minor)
 252 {
 253     ASSERT(major != NULL, "pointer is NULL");
 254     ASSERT(minor != NULL, "pointer is NULL");
 255
 256 #ifdef VER_IN_FIRMWARE
 257     *major = FW_VER_ID->major;
 258     *minor = FW_VER_ID->minor;
 259 #else
 260     *major = ATM_FW_VER_MAJOR;
 261     *minor = ATM_FW_VER_MINOR;
 262 #endif
 263 }
 264
 265 void ifx_atm_init_chip(void)
 266 {
 267     init_pmu();
 268
 269     reset_ppe();
 270
 271     init_ema();
 272
 273     init_mailbox();
 274
 275     init_atm_tc();
 276
 277     clear_share_buffer();
 278 }
 279
 280 void ifx_atm_uninit_chip(void)
 281 {
 282     uninit_pmu();
 283 }
 284
 285 /*
 286  *  Description:
 287  *    Initialize and start up PP32.
 288  *  Input:
 289  *    none
 290  *  Output:
 291  *    int  --- IFX_SUCCESS: Success
 292  *             else:        Error Code
 293  */
 294 int ifx_pp32_start(int pp32)
 295 {
 296     int ret;
 297
 298     /*  download firmware   */
 299     ret = pp32_download_code(firmware_binary_code, sizeof(firmware_binary_code) / sizeof(*firmware_binary_code), firmware_binary_data, sizeof(firmware_binary_data) / sizeof(*firmware_binary_data));
 300     if ( ret != IFX_SUCCESS )
 301         return ret;
 302
 303     /*  run PP32    */
 304     IFX_REG_W32(DBG_CTRL_RESTART, PP32_DBG_CTRL);
 305
 306     /*  idle for a while to let PP32 init itself    */
 307     udelay(10);
 308
 309     return IFX_SUCCESS;
 310 }
 311
 312 /*
 313  *  Description:
 314  *    Halt PP32.
 315  *  Input:
 316  *    none
 317  *  Output:
 318  *    none
 319  */
 320 void ifx_pp32_stop(int pp32)
 321 {
 322     /*  halt PP32   */
 323     IFX_REG_W32(DBG_CTRL_STOP, PP32_DBG_CTRL);
 324 }