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/******************************************************************************
**
** FILE NAME : ifxmips_ptm_ar9.c
** PROJECT : UEIP
** MODULES : PTM
**
** DATE : 7 Jul 2009
** AUTHOR : Xu Liang
** DESCRIPTION : PTM driver common source file (core functions)
** COPYRIGHT : Copyright (c) 2006
** Infineon Technologies AG
** Am Campeon 1-12, 85579 Neubiberg, Germany
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** HISTORY
** $Date $Author $Comment
** 07 JUL 2009 Xu Liang Init Version
*******************************************************************************/
/*
* ####################################
* Head File
* ####################################
*/
/*
* Common Head File
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/version.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <linux/ioctl.h>
#include <asm/delay.h>
/*
* Chip Specific Head File
*/
#include "ifxmips_ptm_adsl.h"
#include "ifxmips_ptm_fw_ar9.h"
#include <lantiq_soc.h>
/*
* ####################################
* Definition
* ####################################
*/
/*
* EMA Settings
*/
#define EMA_CMD_BUF_LEN 0x0040
#define EMA_CMD_BASE_ADDR (0x00001B80 << 2)
#define EMA_DATA_BUF_LEN 0x0100
#define EMA_DATA_BASE_ADDR (0x00001C00 << 2)
#define EMA_WRITE_BURST 0x2
#define EMA_READ_BURST 0x2
/*
* ####################################
* Declaration
* ####################################
*/
/*
* Hardware Init/Uninit Functions
*/
static inline void init_pmu(void);
static inline void uninit_pmu(void);
static inline void reset_ppe(void);
static inline void init_ema(void);
static inline void init_mailbox(void);
static inline void init_atm_tc(void);
static inline void clear_share_buffer(void);
/*
* ####################################
* Local Variable
* ####################################
*/
/*
* ####################################
* Local Function
* ####################################
*/
#define IFX_PMU_MODULE_PPE_SLL01 BIT(19)
#define IFX_PMU_MODULE_PPE_TC BIT(21)
#define IFX_PMU_MODULE_PPE_EMA BIT(22)
#define IFX_PMU_MODULE_PPE_QSB BIT(18)
#define IFX_PMU_MODULE_TPE BIT(13)
#define IFX_PMU_MODULE_DSL_DFE BIT(9)
static inline void init_pmu(void)
{
ltq_pmu_enable(IFX_PMU_MODULE_PPE_SLL01 |
IFX_PMU_MODULE_PPE_TC |
IFX_PMU_MODULE_PPE_EMA |
IFX_PMU_MODULE_TPE |
IFX_PMU_MODULE_DSL_DFE);
}
static inline void uninit_pmu(void)
{
ltq_pmu_disable(IFX_PMU_MODULE_PPE_SLL01 |
IFX_PMU_MODULE_PPE_TC |
IFX_PMU_MODULE_PPE_EMA |
IFX_PMU_MODULE_TPE |
IFX_PMU_MODULE_DSL_DFE);
}
static inline void reset_ppe(void)
{
#ifdef MODULE
// reset PPE
// ifx_rcu_rst(IFX_RCU_DOMAIN_PPE, IFX_RCU_MODULE_PTM);
#endif
}
static inline void init_ema(void)
{
// Configure share buffer master selection
IFX_REG_W32(1, SB_MST_PRI0);
IFX_REG_W32(1, SB_MST_PRI1);
// EMA Settings
IFX_REG_W32((EMA_CMD_BUF_LEN << 16) | (EMA_CMD_BASE_ADDR >> 2), EMA_CMDCFG);
IFX_REG_W32((EMA_DATA_BUF_LEN << 16) | (EMA_DATA_BASE_ADDR >> 2), EMA_DATACFG);
IFX_REG_W32(0x000000FF, EMA_IER);
IFX_REG_W32(EMA_READ_BURST | (EMA_WRITE_BURST << 2), EMA_CFG);
}
static inline void init_mailbox(void)
{
IFX_REG_W32(0xFFFFFFFF, MBOX_IGU1_ISRC);
IFX_REG_W32(0x00000000, MBOX_IGU1_IER);
IFX_REG_W32(0xFFFFFFFF, MBOX_IGU3_ISRC);
IFX_REG_W32(0x00000000, MBOX_IGU3_IER);
}
static inline void init_atm_tc(void)
{
IFX_REG_W32(0x0, RFBI_CFG);
IFX_REG_W32(0x1800, SFSM_DBA0);
IFX_REG_W32(0x1921, SFSM_DBA1);
IFX_REG_W32(0x1A42, SFSM_CBA0);
IFX_REG_W32(0x1A53, SFSM_CBA1);
IFX_REG_W32(0x14011, SFSM_CFG0);
IFX_REG_W32(0x14011, SFSM_CFG1);
IFX_REG_W32(0x1000, FFSM_DBA0);
IFX_REG_W32(0x1700, FFSM_DBA1);
IFX_REG_W32(0x3000C, FFSM_CFG0);
IFX_REG_W32(0x3000C, FFSM_CFG1);
IFX_REG_W32(0xF0D10000, FFSM_IDLE_HEAD_BC0);
IFX_REG_W32(0xF0D10000, FFSM_IDLE_HEAD_BC1);
/*
* 0. Backup port2 value to temp
* 1. Disable CPU port2 in switch (link and learning)
* 2. wait for a while
* 3. Configure DM register and counter
* 4. restore temp to CPU port2 in switch
* This code will cause network to stop working if there are heavy
* traffic during bootup. This part should be moved to switch and use
* the same code as ATM
*/
{
int i;
u32 temp;
temp = IFX_REG_R32(SW_P2_CTL);
IFX_REG_W32(0x40020000, SW_P2_CTL);
for (i = 0; i < 200; i++)
udelay(2000);
IFX_REG_W32(0x00007028, DM_RXCFG);
IFX_REG_W32(0x00007028, DS_RXCFG);
IFX_REG_W32(0x00001100, DM_RXDB);
IFX_REG_W32(0x00001100, DS_RXDB);
IFX_REG_W32(0x00001600, DM_RXCB);
IFX_REG_W32(0x00001600, DS_RXCB);
/*
* For dynamic, must reset these counters,
* For once initialization, don't need to reset these counters
*/
IFX_REG_W32(0x0, DM_RXPGCNT);
IFX_REG_W32(0x0, DS_RXPGCNT);
IFX_REG_W32(0x0, DM_RXPKTCNT);
IFX_REG_W32_MASK(0, 0x80000000, DM_RXCFG);
IFX_REG_W32_MASK(0, 0x8000, DS_RXCFG);
udelay(2000);
IFX_REG_W32(temp, SW_P2_CTL);
udelay(2000);
}
}
static inline void clear_share_buffer(void)
{
volatile u32 *p = SB_RAM0_ADDR(0);
unsigned int i;
for ( i = 0; i < SB_RAM0_DWLEN + SB_RAM1_DWLEN + SB_RAM2_DWLEN + SB_RAM3_DWLEN + SB_RAM4_DWLEN; i++ )
IFX_REG_W32(0, p++);
}
/*
* Description:
* Download PPE firmware binary code.
* Input:
* src --- u32 *, binary code buffer
* dword_len --- unsigned int, binary code length in DWORD (32-bit)
* Output:
* int --- 0: Success
* else: Error Code
*/
static inline int pp32_download_code(u32 *code_src, unsigned int code_dword_len, u32 *data_src, unsigned int data_dword_len)
{
volatile u32 *dest;
if ( code_src == 0 || ((unsigned long)code_src & 0x03) != 0
|| data_src == 0 || ((unsigned long)data_src & 0x03) != 0 )
return -1;
if ( code_dword_len <= CDM_CODE_MEMORYn_DWLEN(0) )
IFX_REG_W32(0x00, CDM_CFG);
else
IFX_REG_W32(0x04, CDM_CFG);
/* copy code */
dest = CDM_CODE_MEMORY(0, 0);
while ( code_dword_len-- > 0 )
IFX_REG_W32(*code_src++, dest++);
/* copy data */
dest = CDM_DATA_MEMORY(0, 0);
while ( data_dword_len-- > 0 )
IFX_REG_W32(*data_src++, dest++);
return 0;
}
/*
* ####################################
* Global Function
* ####################################
*/
void ifx_ptm_get_fw_ver(unsigned int *major, unsigned int *minor)
{
ASSERT(major != NULL, "pointer is NULL");
ASSERT(minor != NULL, "pointer is NULL");
*major = FW_VER_ID->major;
*minor = FW_VER_ID->minor;
}
void ifx_ptm_init_chip(void)
{
init_pmu();
reset_ppe();
init_ema();
init_mailbox();
init_atm_tc();
clear_share_buffer();
}
void ifx_ptm_uninit_chip(void)
{
uninit_pmu();
}
/*
* Description:
* Initialize and start up PP32.
* Input:
* none
* Output:
* int --- 0: Success
* else: Error Code
*/
int ifx_pp32_start(int pp32)
{
int ret;
/* download firmware */
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));
if ( ret != 0 )
return ret;
/* run PP32 */
IFX_REG_W32(DBG_CTRL_RESTART, PP32_DBG_CTRL(0));
/* idle for a while to let PP32 init itself */
udelay(10);
return 0;
}
/*
* Description:
* Halt PP32.
* Input:
* none
* Output:
* none
*/
void ifx_pp32_stop(int pp32)
{
/* halt PP32 */
IFX_REG_W32(DBG_CTRL_STOP, PP32_DBG_CTRL(0));
}
int ifx_ptm_proc_read_regs(char *page, char **start, off_t off, int count, int *eof, void *data)
{
int len = 0;
len += sprintf(page + off + len, "EMA:\n");
len += sprintf(page + off + len, " SB_MST_PRI0 - 0x%08X, SB_MST_PRI1 - 0x%08X\n", IFX_REG_R32(SB_MST_PRI0), IFX_REG_R32(SB_MST_PRI1));
len += sprintf(page + off + len, " EMA_CMDCFG - 0x%08X, EMA_DATACFG - 0x%08X\n", IFX_REG_R32(EMA_CMDCFG), IFX_REG_R32(EMA_DATACFG));
len += sprintf(page + off + len, " EMA_IER - 0x%08X, EMA_CFG - 0x%08X\n", IFX_REG_R32(EMA_IER), IFX_REG_R32(EMA_CFG));
len += sprintf(page + off + len, "Mailbox:\n");
len += sprintf(page + off + len, " MBOX_IGU1_IER - 0x%08X, MBOX_IGU1_ISR - 0x%08X\n", IFX_REG_R32(MBOX_IGU1_IER), IFX_REG_R32(MBOX_IGU1_ISR));
len += sprintf(page + off + len, " MBOX_IGU3_IER - 0x%08X, MBOX_IGU3_ISR - 0x%08X\n", IFX_REG_R32(MBOX_IGU3_IER), IFX_REG_R32(MBOX_IGU3_ISR));
len += sprintf(page + off + len, "TC:\n");
len += sprintf(page + off + len, " RFBI_CFG - 0x%08X\n", IFX_REG_R32(RFBI_CFG));
len += sprintf(page + off + len, " SFSM_DBA0 - 0x%08X, SFSM_CBA0 - 0x%08X, SFSM_CFG0 - 0x%08X\n", IFX_REG_R32(SFSM_DBA0), IFX_REG_R32(SFSM_CBA0), IFX_REG_R32(SFSM_CFG0));
len += sprintf(page + off + len, " SFSM_DBA1 - 0x%08X, SFSM_CBA1 - 0x%08X, SFSM_CFG1 - 0x%08X\n", IFX_REG_R32(SFSM_DBA1), IFX_REG_R32(SFSM_CBA1), IFX_REG_R32(SFSM_CFG1));
len += sprintf(page + off + len, " FFSM_DBA0 - 0x%08X, FFSM_CFG0 - 0x%08X, IDLE_HEAD - 0x%08X\n", IFX_REG_R32(FFSM_DBA0), IFX_REG_R32(FFSM_CFG0), IFX_REG_R32(FFSM_IDLE_HEAD_BC0));
len += sprintf(page + off + len, " FFSM_DBA1 - 0x%08X, FFSM_CFG1 - 0x%08X, IDLE_HEAD - 0x%08X\n", IFX_REG_R32(FFSM_DBA1), IFX_REG_R32(FFSM_CFG1), IFX_REG_R32(FFSM_IDLE_HEAD_BC1));
len += sprintf(page + off + len, "DPlus:\n");
len += sprintf(page + off + len, " DM_RXDB - 0x%08X, DM_RXCB - 0x%08X, DM_RXCFG - 0x%08X\n", IFX_REG_R32(DM_RXDB), IFX_REG_R32(DM_RXCB), IFX_REG_R32(DM_RXCFG));
len += sprintf(page + off + len, " DM_RXPGCNT - 0x%08X, DM_RXPKTCNT - 0x%08X\n", IFX_REG_R32(DM_RXPGCNT), IFX_REG_R32(DM_RXPKTCNT));
len += sprintf(page + off + len, " DS_RXDB - 0x%08X, DS_RXCB - 0x%08X, DS_RXCFG - 0x%08X\n", IFX_REG_R32(DS_RXDB), IFX_REG_R32(DS_RXCB), IFX_REG_R32(DS_RXCFG));
len += sprintf(page + off + len, " DS_RXPGCNT - 0x%08X\n", IFX_REG_R32(DS_RXPGCNT));
*eof = 1;
return len;
}