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ltq-atm/ltq-ptm: re-enable/fix reset_ppe() functionality for VR9

Browse Source 
This patch re-enables the reset_ppe() functionality for VR9 targets by using
the new lantiq rcu subsystem. The reset sequence in the reset_ppe() function
was taken from the ppa datapath driver of lantiq UGW 7.4.1.

Additionally it adds the required reset definitions to the vr9 dtsi file.

It also prepares the reset_ppe() function calls for the other lantiq targets.

This feature is needed to be able to switch between ltq-atm/ltq-ptm driver
in ATM/PTM Auto-Mode at runtime.

Signed-off-by: Martin Schiller <ms@dev.tdt.de>
This commit is contained in:
Martin Schiller 2018-12-05 08:51:13 +01:00 committed by Hauke Mehrtens
parent eae6cac6a3
commit ff3cfe0848
15 changed files with 183 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
package/kernel/lantiq/ltq-atm/src/ifxmips_atm_amazon_se.c
View File

@ -40,6 +40,7 @@
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <linux/ioctl.h>
#include <linux/platform_device.h>
#include <asm/delay.h>
/*
@ -80,7 +81,7 @@
*/
static inline void init_pmu(void);
static inline void uninit_pmu(void);
static inline void reset_ppe(void);
static inline void reset_ppe(struct platform_device *pdev);
static inline void init_ema(void);
static inline void init_mailbox(void);
static inline void init_atm_tc(void);
@ -136,7 +137,7 @@ static inline void uninit_pmu(void)
//PPE_TOP_PMU_SETUP(IFX_PMU_DISABLE);*/
}
static inline void reset_ppe(void)
static inline void reset_ppe(struct platform_device *pdev)
{
#if 0 //MODULE
unsigned int etop_cfg;
@ -262,11 +263,11 @@ extern void ase_fw_ver(unsigned int *major, unsigned int *minor)
*minor = FW_VER_ID->minor;
}
void ase_init(void)
void ase_init(struct platform_device *pdev)
{
init_pmu();
reset_ppe();
reset_ppe(pdev);
init_ema();

9
package/kernel/lantiq/ltq-atm/src/ifxmips_atm_ar9.c
View File

@ -40,6 +40,7 @@
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <linux/ioctl.h>
#include <linux/platform_device.h>
#include <asm/delay.h>
/*
@ -83,7 +84,7 @@
*/
static inline void init_pmu(void);
static inline void uninit_pmu(void);
static inline void reset_ppe(void);
static inline void reset_ppe(struct platform_device *pdev);
static inline void init_ema(void);
static inline void init_mailbox(void);
static inline void clear_share_buffer(void);
@ -125,7 +126,7 @@ static inline void uninit_pmu(void)
{
}
static inline void reset_ppe(void)
static inline void reset_ppe(struct platform_device *pdev)
{
#ifdef MODULE
// reset PPE
@ -193,10 +194,10 @@ void ar9_fw_ver(unsigned int *major, unsigned int *minor)
*minor = FW_VER_ID->minor;
}
void ar9_init(void)
void ar9_init(struct platform_device *pdev)
{
init_pmu();
reset_ppe();
reset_ppe(pdev);
init_ema();
init_mailbox();
clear_share_buffer();

2
package/kernel/lantiq/ltq-atm/src/ifxmips_atm_core.h
View File

@ -34,7 +34,7 @@
#define SET_BITS(x, msb, lsb, value) (((x) & ~(((1 << ((msb) + 1)) - 1) ^ ((1 << (lsb)) - 1))) | (((value) & ((1 << (1 + (msb) - (lsb))) - 1)) << (lsb)))
struct ltq_atm_ops {
void (*init)(void);
void (*init)(struct platform_device *pdev);
void (*shutdown)(void);
int (*start)(int pp32);

9
package/kernel/lantiq/ltq-atm/src/ifxmips_atm_danube.c
View File

@ -40,6 +40,7 @@
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <linux/ioctl.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
/*
@ -61,7 +62,7 @@
#define EMA_WRITE_BURST 0x2
#define EMA_READ_BURST 0x2
static inline void reset_ppe(void);
static inline void reset_ppe(struct platform_device *pdev);
#define IFX_PMU_MODULE_PPE_SLL01 BIT(19)
#define IFX_PMU_MODULE_PPE_TC BIT(21)
@ -70,7 +71,7 @@ static inline void reset_ppe(void);
#define IFX_PMU_MODULE_TPE BIT(13)
#define IFX_PMU_MODULE_DSL_DFE BIT(9)
static inline void reset_ppe(void)
static inline void reset_ppe(struct platform_device *pdev)
{
/*#ifdef MODULE
unsigned int etop_cfg;
@ -140,7 +141,7 @@ static void danube_fw_ver(unsigned int *major, unsigned int *minor)
*minor = FW_VER_ID->minor;
}
static void danube_init(void)
static void danube_init(struct platform_device *pdev)
{
volatile u32 *p = SB_RAM0_ADDR(0);
unsigned int i;
@ -152,7 +153,7 @@ static void danube_init(void)
IFX_PMU_MODULE_TPE |
IFX_PMU_MODULE_DSL_DFE);
reset_ppe();
reset_ppe(pdev);
/* init ema */
IFX_REG_W32((EMA_CMD_BUF_LEN << 16) | (EMA_CMD_BASE_ADDR >> 2), EMA_CMDCFG);

45
package/kernel/lantiq/ltq-atm/src/ifxmips_atm_vr9.c
View File

@ -40,6 +40,8 @@
#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"
@ -56,21 +58,46 @@
#define IFX_PMU_MODULE_AHBS BIT(13)
#define IFX_PMU_MODULE_DSL_DFE BIT(9)
static inline void vr9_reset_ppe(void)
static inline void vr9_reset_ppe(struct platform_device *pdev)
{
/*#ifdef MODULE
// reset PPE
ifx_rcu_rst(IFX_RCU_DOMAIN_DSLDFE, IFX_RCU_MODULE_ATM);
#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);
ifx_rcu_rst(IFX_RCU_DOMAIN_DSLTC, IFX_RCU_MODULE_ATM);
reset_control_assert(dfe);
udelay(1000);
ifx_rcu_rst(IFX_RCU_DOMAIN_PPE, IFX_RCU_MODULE_ATM);
reset_control_assert(tc);
udelay(1000);
*PP32_SRST &= ~0x000303CF;
udelay(1000);
*PP32_SRST |= 0x000303CF;
udelay(1000);
#endif*/
#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)
@ -107,7 +134,7 @@ static void vr9_fw_ver(unsigned int *major, unsigned int *minor)
*minor = FW_VER_ID->minor;
}
static void vr9_init(void)
static void vr9_init(struct platform_device *pdev)
{
volatile u32 *p;
unsigned int i;
@ -120,7 +147,7 @@ static void vr9_init(void)
IFX_PMU_MODULE_AHBS |
IFX_PMU_MODULE_DSL_DFE);
vr9_reset_ppe();
vr9_reset_ppe(pdev);
/* pdma init */
IFX_REG_W32(0x08, PDMA_CFG);

2
package/kernel/lantiq/ltq-atm/src/ltq_atm.c
View File

@ -1777,7 +1777,7 @@ static int ltq_atm_probe(struct platform_device *pdev)
goto INIT_PRIV_DATA_FAIL;
}
ops->init();
ops->init(pdev);
init_rx_tables();
init_tx_tables();

38
package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c
View File

@ -44,6 +44,8 @@
#include <linux/etherdevice.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/platform_device.h>
#include <linux/of_device.h>
#include <asm/io.h>
/*
@ -1448,6 +1450,19 @@ static int ptm_showtime_exit(void)
}
static const struct of_device_id ltq_ptm_match[] = {
#ifdef CONFIG_DANUBE
{ .compatible = "lantiq,ppe-danube", .data = NULL },
#elif defined CONFIG_AMAZON_SE
{ .compatible = "lantiq,ppe-ase", .data = NULL },
#elif defined CONFIG_AR9
{ .compatible = "lantiq,ppe-arx100", .data = NULL },
#elif defined CONFIG_VR9
{ .compatible = "lantiq,ppe-xrx200", .data = NULL },
#endif
{},
};
MODULE_DEVICE_TABLE(of, ltq_ptm_match);
/*
* ####################################
@ -1465,7 +1480,7 @@ static int ptm_showtime_exit(void)
* 0 --- successful
* else --- failure, usually it is negative value of error code
*/
static int ifx_ptm_init(void)
static int ltq_ptm_probe(struct platform_device *pdev)
{
int ret;
struct port_cell_info port_cell = {0};
@ -1481,7 +1496,7 @@ static int ifx_ptm_init(void)
goto INIT_PRIV_DATA_FAIL;
}
ifx_ptm_init_chip();
ifx_ptm_init_chip(pdev);
init_tables();
for ( i = 0; i < ARRAY_SIZE(g_net_dev); i++ ) {
@ -1570,7 +1585,7 @@ INIT_PRIV_DATA_FAIL:
* Output:
* none
*/
static void __exit ifx_ptm_exit(void)
static int ltq_ptm_remove(struct platform_device *pdev)
{
int i;
@ -1595,7 +1610,20 @@ static void __exit ifx_ptm_exit(void)
ifx_ptm_uninit_chip();
clear_priv_data();
return 0;
}
module_init(ifx_ptm_init);
module_exit(ifx_ptm_exit);
static struct platform_driver ltq_ptm_driver = {
.probe = ltq_ptm_probe,
.remove = ltq_ptm_remove,
.driver = {
.name = "ptm",
.owner = THIS_MODULE,
.of_match_table = ltq_ptm_match,
},
};
module_platform_driver(ltq_ptm_driver);
MODULE_LICENSE("GPL");

2
package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.h
View File

@ -122,7 +122,7 @@ extern unsigned int ifx_ptm_dbg_enable;
extern void ifx_ptm_get_fw_ver(unsigned int *major, unsigned int *minor);
extern void ifx_ptm_init_chip(void);
extern void ifx_ptm_init_chip(struct platform_device *pdev);
extern void ifx_ptm_uninit_chip(void);
extern int ifx_pp32_start(int pp32);

10
package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_amazon_se.c
View File

@ -40,6 +40,8 @@
#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>
/*
@ -84,7 +86,7 @@
*/
static inline void init_pmu(void);
static inline void uninit_pmu(void);
static inline void reset_ppe(void);
static inline void reset_ppe(struct platform_device *pdev);
static inline void init_ema(void);
static inline void init_mailbox(void);
static inline void init_atm_tc(void);
@ -129,7 +131,7 @@ static inline void uninit_pmu(void)
//PPE_TOP_PMU_SETUP(IFX_PMU_DISABLE);
}
static inline void reset_ppe(void)
static inline void reset_ppe(struct platform_device *pdev)
{
#ifdef MODULE
unsigned int etop_cfg;
@ -260,11 +262,11 @@ extern void ifx_ptm_get_fw_ver(unsigned int *major, unsigned int *minor)
*minor = FW_VER_ID->minor;
}
void ifx_ptm_init_chip(void)
void ifx_ptm_init_chip(struct platform_device *pdev)
{
init_pmu();
reset_ppe();
reset_ppe(pdev);
init_ema();

10
package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ar9.c
View File

@ -40,6 +40,8 @@
#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>
/*
@ -80,7 +82,7 @@
*/
static inline void init_pmu(void);
static inline void uninit_pmu(void);
static inline void reset_ppe(void);
static inline void reset_ppe(struct platform_device *pdev);
static inline void init_ema(void);
static inline void init_mailbox(void);
static inline void init_atm_tc(void);
@ -130,7 +132,7 @@ static inline void uninit_pmu(void)
}
static inline void reset_ppe(void)
static inline void reset_ppe(struct platform_device *pdev)
{
#ifdef MODULE
// reset PPE
@ -283,11 +285,11 @@ void ifx_ptm_get_fw_ver(unsigned int *major, unsigned int *minor)
*minor = FW_VER_ID->minor;
}
void ifx_ptm_init_chip(void)
void ifx_ptm_init_chip(struct platform_device *pdev)
{
init_pmu();
reset_ppe();
reset_ppe(pdev);
init_ema();

10
package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_danube.c
View File

@ -40,6 +40,8 @@
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <linux/ioctl.h>
#include <linux/platform_device.h>
#include <linux/reset.h>
#include <linux/delay.h>
/*
@ -79,7 +81,7 @@
*/
static inline void init_pmu(void);
static inline void uninit_pmu(void);
static inline void reset_ppe(void);
static inline void reset_ppe(struct platform_device *pdev);
static inline void init_ema(void);
static inline void init_mailbox(void);
static inline void init_atm_tc(void);
@ -125,7 +127,7 @@ static inline void uninit_pmu(void)
IFX_PMU_MODULE_DSL_DFE);
}
static inline void reset_ppe(void)
static inline void reset_ppe(struct platform_device *pdev)
{
#ifdef MODULE
/*unsigned int etop_cfg;
@ -255,11 +257,11 @@ extern void ifx_ptm_get_fw_ver(unsigned int *major, unsigned int *minor)
*minor = FW_VER_ID->minor;
}
void ifx_ptm_init_chip(void)
void ifx_ptm_init_chip(struct platform_device *pdev)
{
init_pmu();
reset_ppe();
reset_ppe(pdev);
init_ema();

37
package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.c
View File

@ -33,6 +33,8 @@
#include <linux/etherdevice.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/platform_device.h>
#include <linux/of_device.h>
#include "ifxmips_ptm_vdsl.h"
#include <lantiq_soc.h>
@ -971,9 +973,21 @@ static int ptm_showtime_exit(void)
return 0;
}
static const struct of_device_id ltq_ptm_match[] = {
#ifdef CONFIG_DANUBE
{ .compatible = "lantiq,ppe-danube", .data = NULL },
#elif defined CONFIG_AMAZON_SE
{ .compatible = "lantiq,ppe-ase", .data = NULL },
#elif defined CONFIG_AR9
{ .compatible = "lantiq,ppe-arx100", .data = NULL },
#elif defined CONFIG_VR9
{ .compatible = "lantiq,ppe-xrx200", .data = NULL },
#endif
{},
};
MODULE_DEVICE_TABLE(of, ltq_ptm_match);
static int ifx_ptm_init(void)
static int ltq_ptm_probe(struct platform_device *pdev)
{
int ret;
int i;
@ -986,7 +1000,7 @@ static int ifx_ptm_init(void)
goto INIT_PRIV_DATA_FAIL;
}
ifx_ptm_init_chip();
ifx_ptm_init_chip(pdev);
ret = init_tables();
if ( ret != 0 ) {
err("INIT_TABLES_FAIL");
@ -1068,7 +1082,7 @@ INIT_PRIV_DATA_FAIL:
return ret;
}
static void __exit ifx_ptm_exit(void)
static int ltq_ptm_remove(struct platform_device *pdev)
{
int i;
ifx_mei_atm_showtime_enter = NULL;
@ -1092,6 +1106,8 @@ static void __exit ifx_ptm_exit(void)
ifx_ptm_uninit_chip();
clear_priv_data();
return 0;
}
#ifndef MODULE
@ -1120,8 +1136,17 @@ static int __init queue_gamma_map_setup(char *line)
return 0;
}
#endif
module_init(ifx_ptm_init);
module_exit(ifx_ptm_exit);
static struct platform_driver ltq_ptm_driver = {
.probe = ltq_ptm_probe,
.remove = ltq_ptm_remove,
.driver = {
.name = "ptm",
.owner = THIS_MODULE,
.of_match_table = ltq_ptm_match,
},
};
module_platform_driver(ltq_ptm_driver);
#ifndef MODULE
__setup("wanqos_en=", wanqos_en_setup);
__setup("queue_gamma_map=", queue_gamma_map_setup);

2
package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.h
View File

@ -113,7 +113,7 @@ extern unsigned int ifx_ptm_dbg_enable;
extern void ifx_ptm_get_fw_ver(unsigned int *major, unsigned int *minor);
extern void ifx_ptm_init_chip(void);
extern void ifx_ptm_init_chip(struct platform_device *pdev);
extern void ifx_ptm_uninit_chip(void);
extern int ifx_pp32_start(int pp32);

47
package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vr9.c
View File

@ -40,6 +40,8 @@
#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>
/*
@ -52,7 +54,7 @@
static inline void init_pmu(void);
static inline void uninit_pmu(void);
static inline void reset_ppe(void);
static inline void reset_ppe(struct platform_device *pdev);
static inline void init_pdma(void);
static inline void init_mailbox(void);
static inline void init_atm_tc(void);
@ -80,21 +82,46 @@ static inline void uninit_pmu(void)
{
}
static inline void reset_ppe(void)
static inline void reset_ppe(struct platform_device *pdev)
{
/*#ifdef MODULE
// reset PPE
ifx_rcu_rst(IFX_RCU_DOMAIN_DSLDFE, IFX_RCU_MODULE_PTM);
#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);
ifx_rcu_rst(IFX_RCU_DOMAIN_DSLTC, IFX_RCU_MODULE_PTM);
reset_control_assert(dfe);
udelay(1000);
ifx_rcu_rst(IFX_RCU_DOMAIN_PPE, IFX_RCU_MODULE_PTM);
reset_control_assert(tc);
udelay(1000);
*PP32_SRST &= ~0x000303CF;
udelay(1000);
*PP32_SRST |= 0x000303CF;
udelay(1000);
#endif*/
#endif
}
static inline void init_pdma(void)
@ -230,11 +257,11 @@ extern void ifx_ptm_get_fw_ver(unsigned int *major, unsigned int *minor)
*minor = FW_VER_ID->minor;
}
void ifx_ptm_init_chip(void)
void ifx_ptm_init_chip(struct platform_device *pdev)
{
init_pmu();
reset_ppe();
reset_ppe(pdev);
init_pdma();

2
target/linux/lantiq/files-4.14/arch/mips/boot/dts/vr9.dtsi
View File

@ -297,6 +297,8 @@
compatible = "lantiq,ppe-xrx200";
interrupt-parent = <&icu0>;
interrupts = <96>;
resets = <&reset0 3 3>, <&reset0 11 11>, <&reset0 23 23>;
reset-names = "dsp", "dfe", "tc";
};
pcie0: pcie@d900000 {