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/******************************************************************************
**
** FILE NAME : ifxmips_atm_vr9.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 <linux/platform_device.h>
#include <linux/reset.h>
#include <asm/delay.h>
#include "ifxmips_atm_core.h"
#include "ifxmips_atm_fw_vr9.h"
#ifdef CONFIG_VR9
#include <lantiq_soc.h>
#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_AHBS BIT(13)
#define IFX_PMU_MODULE_DSL_DFE BIT(9)
static inline void vr9_reset_ppe(struct platform_device *pdev)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0)
struct device *dev = &pdev->dev;
struct reset_control *dsp;
struct reset_control *dfe;
struct reset_control *tc;
dsp = devm_reset_control_get(dev, "dsp");
if (IS_ERR(dsp)) {
if (PTR_ERR(dsp) != -EPROBE_DEFER)
dev_err(dev, "Failed to lookup dsp reset\n");
// return PTR_ERR(dsp);
}
dfe = devm_reset_control_get(dev, "dfe");
if (IS_ERR(dfe)) {
if (PTR_ERR(dfe) != -EPROBE_DEFER)
dev_err(dev, "Failed to lookup dfe reset\n");
// return PTR_ERR(dfe);
}
tc = devm_reset_control_get(dev, "tc");
if (IS_ERR(tc)) {
if (PTR_ERR(tc) != -EPROBE_DEFER)
dev_err(dev, "Failed to lookup tc reset\n");
// return PTR_ERR(tc);
}
reset_control_assert(dsp);
udelay(1000);
reset_control_assert(dfe);
udelay(1000);
reset_control_assert(tc);
udelay(1000);
*PP32_SRST &= ~0x000303CF;
udelay(1000);
*PP32_SRST |= 0x000303CF;
udelay(1000);
#endif
}
static inline int vr9_pp32_download_code(int pp32, u32 *code_src, unsigned int code_dword_len, u32 *data_src, unsigned int data_dword_len)
{
unsigned int clr, set;
volatile u32 *dest;
if ( code_src == 0 || ((unsigned long)code_src & 0x03) != 0
|| data_src == 0 || ((unsigned long)data_src & 0x03) != 0 )
return -1;
clr = pp32 ? 0xF0 : 0x0F;
if ( code_dword_len <= CDM_CODE_MEMORYn_DWLEN(0) )
set = pp32 ? (3 << 6): (2 << 2);
else
set = 0x00;
IFX_REG_W32_MASK(clr, set, CDM_CFG);
dest = CDM_CODE_MEMORY(pp32, 0);
while ( code_dword_len-- > 0 )
IFX_REG_W32(*code_src++, dest++);
dest = CDM_DATA_MEMORY(pp32, 0);
while ( data_dword_len-- > 0 )
IFX_REG_W32(*data_src++, dest++);
return 0;
}
static void vr9_fw_ver(unsigned int *major, unsigned int *minor)
{
*major = FW_VER_ID->major;
*minor = FW_VER_ID->minor;
}
static void vr9_init(struct platform_device *pdev)
{
volatile u32 *p;
unsigned int i;
/* setup pmu */
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_AHBS |
IFX_PMU_MODULE_DSL_DFE);
vr9_reset_ppe(pdev);
/* pdma init */
IFX_REG_W32(0x08, PDMA_CFG);
IFX_REG_W32(0x00203580, SAR_PDMA_RX_CMDBUF_CFG);
IFX_REG_W32(0x004035A0, SAR_PDMA_RX_FW_CMDBUF_CFG);
/* mailbox init */
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);
/* tc init - clear sync state */
*SFSM_STATE0 = 0;
*SFSM_STATE1 = 0;
/* init shared buffer */
p = SB_RAM0_ADDR(0);
for ( i = 0; i < SB_RAM0_DWLEN + SB_RAM1_DWLEN + SB_RAM2_DWLEN + SB_RAM3_DWLEN; i++ )
IFX_REG_W32(0, p++);
p = SB_RAM6_ADDR(0);
for ( i = 0; i < SB_RAM6_DWLEN; i++ )
IFX_REG_W32(0, p++);
}
static void vr9_shutdown(void)
{
}
static int vr9_start(int pp32)
{
unsigned int mask = 1 << (pp32 << 4);
int ret;
/* download firmware */
ret = vr9_pp32_download_code(pp32,
vr9_fw_bin, sizeof(vr9_fw_bin) / sizeof(*vr9_fw_bin),
vr9_fw_data, sizeof(vr9_fw_data) / sizeof(*vr9_fw_data));
if ( ret != 0 )
return ret;
/* run PP32 */
IFX_REG_W32_MASK(mask, 0, PP32_FREEZE);
/* idle for a while to let PP32 init itself */
udelay(10);
return 0;
}
static void vr9_stop(int pp32)
{
unsigned int mask = 1 << (pp32 << 4);
IFX_REG_W32_MASK(0, mask, PP32_FREEZE);
}
struct ltq_atm_ops vr9_ops = {
.init = vr9_init,
.shutdown = vr9_shutdown,
.start = vr9_start,
.stop = vr9_stop,
.fw_ver = vr9_fw_ver,
};
#endif
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