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Diffstat (limited to 'package/kernel/lantiq/ltq-atm/src/ifxmips_atm_ar9.c')
| -rw-r--r-- | package/kernel/lantiq/ltq-atm/src/ifxmips_atm_ar9.c | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/package/kernel/lantiq/ltq-atm/src/ifxmips_atm_ar9.c b/package/kernel/lantiq/ltq-atm/src/ifxmips_atm_ar9.c new file mode 100644 index 0000000..b68848b --- /dev/null +++ b/package/kernel/lantiq/ltq-atm/src/ifxmips_atm_ar9.c @@ -0,0 +1,244 @@ +/****************************************************************************** +** +** FILE NAME : ifxmips_atm_ar9.c +** PROJECT : UEIP +** MODULES : ATM +** +** DATE : 7 Jul 2009 +** AUTHOR : Xu Liang +** DESCRIPTION : ATM 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_atm_core.h" + +#include "ifxmips_atm_fw_ar9.h" +#include "ifxmips_atm_fw_regs_ar9.h" + +#include <lantiq_soc.h> + + + +/* + * #################################### + * Definition + * #################################### + */ + +/* + * EMA Settings + */ +#define EMA_CMD_BUF_LEN 0x0040 +#define EMA_CMD_BASE_ADDR (0x00003B80 << 2) +#define EMA_DATA_BUF_LEN 0x0100 +#define EMA_DATA_BASE_ADDR (0x00003C00 << 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 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_PPE_QSB | + IFX_PMU_MODULE_TPE | + IFX_PMU_MODULE_DSL_DFE); +} + +static inline void uninit_pmu(void) +{ +} + +static inline void reset_ppe(void) +{ +#ifdef MODULE + // reset PPE +// ifx_rcu_rst(IFX_RCU_DOMAIN_PPE, IFX_RCU_MODULE_ATM); +#endif +} + +static inline void init_ema(void) +{ + 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 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++); +} + +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; +} + +void ar9_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 ar9_init(void) +{ + init_pmu(); + reset_ppe(); + init_ema(); + init_mailbox(); + clear_share_buffer(); +} + +void ar9_shutdown(void) +{ + ltq_pmu_disable(IFX_PMU_MODULE_PPE_SLL01 | + IFX_PMU_MODULE_PPE_TC | + IFX_PMU_MODULE_PPE_EMA | + IFX_PMU_MODULE_PPE_QSB | + IFX_PMU_MODULE_TPE | + IFX_PMU_MODULE_DSL_DFE); +} + +int ar9_start(int pp32) +{ + int ret; + + ret = pp32_download_code(ar9_fw_bin, sizeof(ar9_fw_bin) / sizeof(*ar9_fw_bin), + ar9_fw_data, sizeof(ar9_fw_data) / sizeof(*ar9_fw_data)); + if ( ret != 0 ) + return ret; + + IFX_REG_W32(DBG_CTRL_RESTART, PP32_DBG_CTRL(0)); + + udelay(10); + + return 0; +} + +void ar9_stop(int pp32) +{ + IFX_REG_W32(DBG_CTRL_STOP, PP32_DBG_CTRL(0)); +} + +struct ltq_atm_ops ar9_ops = { + .init = ar9_init, + .shutdown = ar9_shutdown, + .start = ar9_start, + .stop = ar9_stop, + .fw_ver = ar9_fw_ver, +}; + + |