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|
/*
* 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.
*
* RTL819XX PCIE Host Controller Glue Driver
* Copyright (C) 2006, Realtek Semiconductor Corp.
* Author: (ghhuang@realtek.com.tw)
*
* Copyright (C) 2013, Artur Artamonov (artur@advem.lv)
*
* Notes:
* - Two host controllers available.
* - Each host direcly connects to one device
* - Supports PCI devices through PCIE-to-PCI bridges
* - If no PCI devices are connected to RC. Timeout monitor shall be
* enabled to prevent bus hanging.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
//#include <asm/rlxregs.h>
#include "bspchip.h"
#define PCI_8BIT_ACCESS 1
#define PCI_16BIT_ACCESS 2
#define PCI_32BIT_ACCESS 4
#define PCI_ACCESS_READ 8
#define PCI_ACCESS_WRITE 16
#define MAX_NUM_DEV 4
#define DEBUG_PRINTK 0
#define CLK_MANAGE 0xb8000010
#define SYS_PCIE_PHY0 (0xb8000000 +0x50)
#define SYS_PCIE_PHY1 (0xb8000000 +0x54)
#define PCIE_PHY0 0xb8b01008
#define PCIE_PHY1 0xb8b21008
//best define ever
#define PIN_208 1
#define MAX_PAYLOAD_SIZE_128B 0
static int pci0_bus_number = 0xff;
static int pci1_bus_number = 0xff;
static struct resource rtl8196c_pci0_io_resource = {
.name = "RTL8196C PCI0 IO",
.flags = IORESOURCE_IO,
.start = PADDR(BSP_PCIE0_D_IO),
.end = PADDR(BSP_PCIE0_D_IO + 0x1FFFFF)
};
static struct resource rtl8196c_pci0_mem_resource = {
.name = "RTL8196C PCI0 MEM",
.flags = IORESOURCE_MEM,
.start = PADDR(BSP_PCIE0_D_MEM),
.end = PADDR(BSP_PCIE0_D_MEM + 0xFFFFFF)
};
static struct resource rtl8196d_pci0_io_resource = {
.name = "RTL8196D PCI0 IO",
.flags = IORESOURCE_IO,
.start = PADDR(BSP_PCIE0_D_IO),
.end = PADDR(BSP_PCIE0_D_IO + 0x1FFFFF)
};
static struct resource rtl8196d_pci0_mem_resource = {
.name = "RTL8196D PCI0 MEM",
.flags = IORESOURCE_MEM,
.start = PADDR(BSP_PCIE0_D_MEM),
.end = PADDR(BSP_PCIE0_D_MEM + 0xFFFFFF)
};
static struct resource rtl8196b_pci1_io_resource = {
.name = "RTL8196B PCI1 IO",
.flags = IORESOURCE_IO,
.start = PADDR(BSP_PCIE1_D_IO),
.end = PADDR(BSP_PCIE1_D_IO + 0x1FFFFF)
};
static struct resource rtl8196b_pci1_mem_resource = {
.name = "RTL8196B PCI1 MEM",
.flags = IORESOURCE_MEM,
.start = PADDR(BSP_PCIE1_D_MEM),
.end = PADDR(BSP_PCIE1_D_MEM + 0xFFFFFF)
};
#if defined(CONFIG_RTL_8196C)
static struct resource rtl8196b_pci0_io_resource = resource rtl8196c_pci0_io_resource;
static struct resource rtl8196b_pci0_mem_resource = resource rtl8196c_pci0_mem_resource;
#elif defined(CONFIG_RTL_819XD)
static struct resource rtl8196b_pci0_io_resource = resource rtl8196d_pci0_io_resource;
static struct resource rtl8196b_pci0_mem_resource = resource rtl8196d_pci0_mem_resource;
#endif
//HOST PCIE
#define PCIE0_RC_EXT_BASE (0xb8b01000)
#define PCIE1_RC_EXT_BASE (0xb8b21000)
//RC Extended register
#define PCIE0_MDIO (PCIE0_RC_EXT_BASE+0x00)
#define PCIE1_MDIO (PCIE1_RC_EXT_BASE+0x00)
//MDIO
#define PCIE_MDIO_DATA_OFFSET (16)
#define PCIE_MDIO_DATA_MASK (0xffff <<PCIE_MDIO_DATA_OFFSET)
#define PCIE_MDIO_REG_OFFSET (8)
#define PCIE_MDIO_RDWR_OFFSET (0)
int at2_mode=0;
//------------------------------------------------------------------------
unsigned int HostPCIe_SetPhyMdioRead(unsigned int portnum, unsigned int regaddr)
{
unsigned int mdioaddr=PCIE0_MDIO;
/*
if(portnum==0) mdioaddr=PCIE0_MDIO;
else if(portnum==1) mdioaddr=PCIE1_MDIO;
else return 0;
*/
REG32(mdioaddr)= ((regaddr&0x1f)<<PCIE_MDIO_REG_OFFSET) | (0<<PCIE_MDIO_RDWR_OFFSET);
//delay
volatile int i;
for(i=0;i<5555;i++) ;
int val;
val=REG32(mdioaddr)& (0xffff <<PCIE_MDIO_DATA_OFFSET) ;
return ((val>>PCIE_MDIO_DATA_OFFSET)&0xffff);
}
void HostPCIe_SetPhyMdioWrite(unsigned int portnum, unsigned int regaddr, unsigned short val)
{
unsigned int mdioaddr;
if(portnum==0) mdioaddr=PCIE0_MDIO;
else if(portnum==1) mdioaddr=PCIE1_MDIO;
else return 0;
REG32(mdioaddr)= ( (regaddr&0x1f)<<PCIE_MDIO_REG_OFFSET) | ((val&0xffff)<<PCIE_MDIO_DATA_OFFSET) | (1<<PCIE_MDIO_RDWR_OFFSET) ;
//delay
volatile int i;
for(i=0;i<5555;i++) ;
}
//----------------------------------------------------------------------------
void PCIE_MDIO_Reset(unsigned int portnum)
{
#define SYS_PCIE_PHY0 (0xb8000000 +0x50)
#define SYS_PCIE_PHY1 (0xb8000000 +0x54)
unsigned int sys_pcie_phy;
if (portnum==0)
sys_pcie_phy=SYS_PCIE_PHY0;
else if (portnum==1)
sys_pcie_phy=SYS_PCIE_PHY1;
else
return;
// 3.MDIO Reset
REG32(sys_pcie_phy) = (1<<3) |(0<<1) | (0<<0); //mdio reset=0,
REG32(sys_pcie_phy) = (1<<3) |(0<<1) | (1<<0); //mdio reset=1,
REG32(sys_pcie_phy) = (1<<3) |(1<<1) | (1<<0); //bit1 load_done=1
}
//------------------------------------------------------------------------
void PCIE_PHY_Reset(unsigned int portnum)
{
#define PCIE_PHY0 0xb8b01008
#define PCIE_PHY1 0xb8b21008
unsigned int pcie_phy;
if(portnum==0) pcie_phy=PCIE_PHY0;
else if(portnum==1) pcie_phy=PCIE_PHY1;
else return;
//4. PCIE PHY Reset
REG32(pcie_phy) = 0x01; //bit7:PHY reset=0 bit0: Enable LTSSM=1
REG32(pcie_phy) = 0x81; //bit7: PHY reset=1 bit0: Enable LTSSM=1
}
//------------------------------------------------------------------------
int PCIE_Check_Link(unsigned int portnum)
{
unsigned int dbgaddr;
unsigned int cfgaddr;
if(portnum==0) dbgaddr=0xb8b00728;
else if(portnum==1) dbgaddr=0xb8b20728;
else return;
//wait for LinkUP
#ifdef CONFIG_RTK_VOIP
// accelerate when no pcie card
int i=3;
#else
int i=20;
#endif
while(--i)
{
if( (REG32(dbgaddr)&0x1f)==0x11)
break;
mdelay(300);
}
if(i==0)
{
printk("i=%x Cannot LinkUP \n",i);
return 0;
}
else
{
printk("\nLink-UP OK\n");
if(portnum==0)
cfgaddr=0xb8b10000;
else if(portnum==1)
cfgaddr=0xb8b30000;
REG32(cfgaddr+0x04)=0x00100007;
printk("Find Port=%x Device:Vender ID=%x\n", portnum, REG32(cfgaddr) );
REG32(cfgaddr);
mdelay(1);
#if defined(CONFIG_RTL_819XD)
if (portnum == 0)
REG32(BSP_GIMR) |= BSP_PCIE_IE;
else
REG32(BSP_GIMR) |= BSP_PCIE2_IE;
#endif
}
return 1;
}
//------------------------------------------------------------------------
/*
void PCIE_Device_PERST(void)
{
REG32(CLK_MANAGE) &= ~(1<<12); //perst=0 off.
mdelay(500); //PCIE standadrd: poweron: 100us, after poweron: 100ms
mdelay(500);
REG32(CLK_MANAGE) |= (1<<12); //PERST=1
mdelay(500);
}
*/
static void PCIE_Device_PERST(int portnum)
{
#define CLK_MANAGE 0xb8000010
#define GPIO_BASE 0xB8003500
#define PEFGHCNR_REG (0x01C + GPIO_BASE) /* Port EFGH control */
#define PEFGHPTYPE_REG (0x020 + GPIO_BASE) /* Port EFGH type */
#define PEFGHDIR_REG (0x024 + GPIO_BASE) /* Port EFGH direction */
#define PEFGHDAT_REG (0x028 + GPIO_BASE) /* Port EFGH data */
if (portnum==0)
{
REG32(CLK_MANAGE) &= ~(1<<26); //perst=0 off.
mdelay(500); //PCIE standadrd: poweron: 100us, after poweron: 100ms
mdelay(500);
REG32(CLK_MANAGE) |= (1<<26); //PERST=1
}
else if (portnum==1)
{
/* PCIE Device Reset
* The pcei1 slot reset register depends on the hw
*/
#if 1//defined(CONFIG_RTL_DUAL_PCIESLOT_BIWLAN) || (RTL_USED_PCIE_SLOT==1) || defined(CONFIG_RTL_DUAL_PCIESLOT_BIWLAN_D)
REG32(PEFGHDAT_REG) &= ~(0x1000); //perst=0 off.
mdelay(300); //PCIE standadrd: poweron: 100us, after poweron: 100ms
mdelay(300);
REG32(PEFGHDAT_REG) |= (0x1000); //PERST=1
#elif defined(CONFIG_RTL_92D_SUPPORT)
REG32(CLK_MANAGE) &= ~(1<<26); //perst=0 off.
mdelay(500); //PCIE standadrd: poweron: 100us, after poweron: 100ms
mdelay(500);
REG32(CLK_MANAGE) |= (1<<26); //PERST=1
#endif
}
else
return;
}
//------------------------------------------------------------------------
int OnlyOneReset()
{
int result=0;
int portnum=0;
printk("PCIE RESET Only Once\n");
#define CLK_MANAGE 0xb8000010
#ifdef CONFIG_RTL_819XD
REG32(CLK_MANAGE)|= (1<<12)|(1<<13)|(1<<19)|(1<<20)|(1<<18)|(1<<16);
#endif
REG32(CLK_MANAGE) &= (~(1<<14)); //disable active_pcie0
REG32(CLK_MANAGE) |= (1<<14); //enable active_pcie0
#define PAD_CONTROL 0xb8000048
REG32(PAD_CONTROL)|=(1<<27); //switch to rc
REG32(CLK_MANAGE) &= (~(1<<16)); //disable active_pcie1
REG32(CLK_MANAGE) |= (1<<16); //enable active_pcie1
//PERST=1
//REG32(CLK_MANAGE) |= (1<<26);
//PCIE_Device_PERST(0);
for(portnum=0; portnum<2; portnum++)
PCIE_MDIO_Reset(portnum);
mdelay(500);
for(portnum=0; portnum<2; portnum++)
{
#if 1//def RTL8198_FORMALCHIP_A
HostPCIe_SetPhyMdioWrite(portnum, 0, 0xD087); //bokai tell, and fix
HostPCIe_SetPhyMdioWrite(portnum, 1, 0x0003);
HostPCIe_SetPhyMdioWrite(portnum, 2, 0x4d18);
#ifdef CONFIG_PHY_EAT_40MHZ
HostPCIe_SetPhyMdioWrite(portnum, 5, 0x0BCB); //40M
#endif
#ifdef CONFIG_PHY_EAT_40MHZ
HostPCIe_SetPhyMdioWrite(portnum, 6, 0xF148); //40M
#else
HostPCIe_SetPhyMdioWrite(portnum, 6, 0xf848); //25M
#endif
HostPCIe_SetPhyMdioWrite(portnum, 7, 0x31ff);
#ifdef CONFIG_RTL_819XD
HostPCIe_SetPhyMdioWrite(portnum, 8, 0x18d6); //peisi tune
#else
HostPCIe_SetPhyMdioWrite(portnum, 8, 0x18d7); //peisi tune
#endif
HostPCIe_SetPhyMdioWrite(portnum, 0x09, 0x539c);
HostPCIe_SetPhyMdioWrite(portnum, 0x0a, 0x20eb);
HostPCIe_SetPhyMdioWrite(portnum, 0x0d, 0x1766);
//HostPCIe_SetPhyMdioWrite(portnum, 0x0d, 0x1464); //wei add
HostPCIe_SetPhyMdioWrite(portnum, 0x0b, 0x0511); //for sloving low performance
HostPCIe_SetPhyMdioWrite(portnum, 0xf, 0x0a00);
HostPCIe_SetPhyMdioWrite(portnum, 0x19, 0xFCE0);
HostPCIe_SetPhyMdioWrite(portnum, 0x1a, 0x7e40); //formal chip, reg 0x1a.4=0
HostPCIe_SetPhyMdioWrite(portnum, 0x1b, 0xFC01); //formal chip reg 0x1b.0=1
HostPCIe_SetPhyMdioWrite(portnum, 0x1e, 0xC280);
#endif
}
PCIE_Device_PERST(0);
mdelay(500);
for(portnum=0; portnum<2; portnum++)
PCIE_PHY_Reset(portnum);
mdelay(500);
mdelay(500);
mdelay(500);
for(portnum=0; portnum<2; portnum++)
{ result=PCIE_Check_Link(portnum);
if(result!=1)
continue;
#if 1 //wei add patch
//add compatible, slove sata pcie card.
if(portnum==0) REG32(0xb8b0100c)=(1<<3); //set target Device Num=1;
if(portnum==1) REG32(0xb8b2100c)=(2<<3); //set target Device Num=1;
unsigned int rc_cfg, cfgaddr;
unsigned int iomapaddr;
unsigned int memmapaddr;
#define PCIE0_RC_CFG_BASE (0xb8b00000)
#define PCIE0_RC_EXT_BASE (PCIE0_RC_CFG_BASE + 0x1000)
#define PCIE0_EP_CFG_BASE (0xb8b10000)
#define PCIE1_RC_CFG_BASE (0xb8b20000)
#define PCIE1_RC_EXT_BASE (PCIE1_RC_CFG_BASE + 0x1000)
#define PCIE1_EP_CFG_BASE (0xb8b30000)
#define PCIE0_MAP_IO_BASE (0xb8c00000)
#define PCIE0_MAP_MEM_BASE (0xb9000000)
#define PCIE1_MAP_IO_BASE (0xb8e00000)
#define PCIE1_MAP_MEM_BASE (0xba000000)
#define MAX_READ_REQSIZE_128B 0x00
#define MAX_READ_REQSIZE_256B 0x10
#define MAX_READ_REQSIZE_512B 0x20
#define MAX_READ_REQSIZE_1KB 0x30
#define MAX_READ_REQSIZE_2KB 0x40
#define MAX_READ_REQSIZE_4KB 0x50
#define MAX_PAYLOAD_SIZE_128B 0x00
#define MAX_PAYLOAD_SIZE_256B 0x20
#define MAX_PAYLOAD_SIZE_512B 0x40
#define MAX_PAYLOAD_SIZE_1KB 0x60
#define MAX_PAYLOAD_SIZE_2KB 0x80
#define MAX_PAYLOAD_SIZE_4KB 0xA0
if(portnum==0)
{ rc_cfg=PCIE0_RC_CFG_BASE;
cfgaddr=PCIE0_EP_CFG_BASE;
iomapaddr=PCIE0_MAP_IO_BASE;
memmapaddr=PCIE0_MAP_MEM_BASE;
}
else if(portnum==1)
{ rc_cfg=PCIE1_RC_CFG_BASE;
cfgaddr=PCIE1_EP_CFG_BASE;
iomapaddr=PCIE1_MAP_IO_BASE;
memmapaddr=PCIE1_MAP_MEM_BASE;
}
//STATUS
//bit 4: capabilties List
//CMD
//bit 2: Enable Bys master,
//bit 1: enable memmap,
//bit 0: enable iomap
REG32(rc_cfg + 0x04)= 0x00100007;
//Device Control Register
//bit [7-5] payload size
REG32(rc_cfg + 0x78)= (REG32(rc_cfg + 0x78 ) & (~0xE0)) | MAX_PAYLOAD_SIZE_128B; // Set MAX_PAYLOAD_SIZE to 128B,default
REG32(cfgaddr + 0x04)= 0x00100007; //0x00180007
//bit 0: 0:memory, 1 io indicate
//REG32(cfgaddr + 0x10)= (iomapaddr | 0x00000001) & 0x1FFFFFFF; // Set BAR0
//bit 3: prefetch
//bit [2:1] 00:32bit, 01:reserved, 10:64bit 11:reserved
//REG32(cfgaddr + 0x18)= (memmapaddr | 0x00000004) & 0x1FFFFFFF; // Set BAR1
//offset 0x78 [7:5]
REG32(cfgaddr + 0x78) = (REG32(cfgaddr + 0x78) & (~0xE0)) | (MAX_PAYLOAD_SIZE_128B); // Set MAX_PAYLOAD_SIZE to 128B
//offset 0x79: [6:4]
REG32(cfgaddr + 0x78) = (REG32(cfgaddr + 0x78) & (~0x7000)) | (MAX_READ_REQSIZE_256B<<8); // Set MAX_REQ_SIZE to 256B,default
//io and mem limit, setting to no litmit
REG32(rc_cfg+ 0x1c) = (2<<4) | (0<<12); // [7:4]=base [15:12]=limit
REG32(rc_cfg+ 0x20) = (2<<4) | (0<<20); // [15:4]=base [31:20]=limit
REG32(rc_cfg+ 0x24) = (2<<4) | (0<<20); // [15:4]=base [31:20]=limit
#endif
}
return 1;
}
//----------------------------------------------------------------------
//======================================================================
//please rewrite me/ here is a lot of ...
#if defined(CONFIG_RTL_8196C)
int PCIE_reset_procedure(int portnum, int Use_External_PCIE_CLK, int mdio_reset)
{
#define CLK_MANAGE 0xb8000010
int result;
REG32(CLK_MANAGE) |= (1<<11); //enable active_pcie0
mdelay(10);
REG32(0xb8b0100c)=(1<<3); //set target Device Num=1;
mdelay(10);
if (mdio_reset) {
printk("Do MDIO_RESET\n");
// 3.MDIO Reset
PCIE_MDIO_Reset(portnum);
mdelay(10);
}
//4. PCIE PHY Reset
PCIE_PHY_Reset(portnum);
mdelay(10);
mdelay(10);
//----------------------------------------
if (mdio_reset) {
HostPCIe_SetPhyMdioWrite(portnum, 0, 0xD087); //bokai tell, and fix
HostPCIe_SetPhyMdioWrite(portnum, 1, 0x0003);
HostPCIe_SetPhyMdioWrite(portnum, 2, 0x4d18);
#ifdef CONFIG_PHY_EAT_40MHZ
#ifdef CONFIG_HIGH_POWER_EXT_PA
HostPCIe_SetPhyMdioWrite(portnum, 5, 0x0BF3); //40M
#else
HostPCIe_SetPhyMdioWrite(portnum, 5, 0x0BCB); //40M
#endif
#endif
#ifdef CONFIG_PHY_EAT_40MHZ
HostPCIe_SetPhyMdioWrite(portnum, 6, 0xF148); //40M
#else
HostPCIe_SetPhyMdioWrite(portnum, 6, 0xf848); //25M
#endif
HostPCIe_SetPhyMdioWrite(portnum, 7, 0x31ff);
HostPCIe_SetPhyMdioWrite(portnum, 8, 0x18d7); //peisi tune
#if 0 //old,
HostPCIe_SetPhyMdioWrite(portnum, 9, 0x531c);
HostPCIe_SetPhyMdioWrite(portnum, 0xd, 0x1766); //peisi tune
#else //saving more power, 8196c pe-si tune
HostPCIe_SetPhyMdioWrite(portnum, 0x09, 0x539c);
HostPCIe_SetPhyMdioWrite(portnum, 0x0a, 0x20eb);
HostPCIe_SetPhyMdioWrite(portnum, 0x0d, 0x1764);
#endif
HostPCIe_SetPhyMdioWrite(portnum, 0x0b, 0x0511); //for sloving low performance
HostPCIe_SetPhyMdioWrite(portnum, 0xf, 0x0a00);
HostPCIe_SetPhyMdioWrite(portnum, 0x19, 0xFCE0);
HostPCIe_SetPhyMdioWrite(portnum, 0x1e, 0xC280);
}
//---------------------------------------
PCIE_Device_PERST();
PCIE_PHY_Reset(portnum);
mdelay(500);
REG32(0xb8b00000 + 0x04)= 0x00100007;
REG8(0xb8b00000 + 0x78)=((REG8(0xb8b00000 + 0x78) & (~0xE0)) | MAX_PAYLOAD_SIZE_128B);
mdelay(500);
result=PCIE_Check_Link(portnum);
return result;
}
#elif defined(CONFIG_RTL_819XD)
int PCIE_reset_procedure(int portnum, int Use_External_PCIE_CLK, int mdio_reset)
{
// dprintf("port=%x, mdio_rst=%x \n", portnum, mdio_reset);
int result=0;
//first, Turn On PCIE IP
#define CLK_MANAGE 0xb8000010
if(portnum==0) REG32(CLK_MANAGE) |= (1<<14); //enable active_pcie0
else if(portnum==1) REG32(CLK_MANAGE) |= (1<<16); //enable active_pcie1
else return result;
if (portnum==0)
{
REG32(CLK_MANAGE) |= (1<<26); //PERST=1
}
else if (portnum==1)
{
REG32(0xb8000040)|=0x300;
REG32(PEFGHCNR_REG) &= ~(0x1000); /*port F bit 4 */
REG32(PEFGHDIR_REG) |= (0x1000); /*port F bit 4 */
REG32(PEFGHDAT_REG) |= (0x1000); //PERST=1
}
#ifdef CONFIG_RTL_819XD
REG32(CLK_MANAGE) |= (1<<12)| (1<<13)|(1<<18);
#endif
mdelay(500);
#ifdef CONFIG_RTL8198_REVISION_B
if(portnum==1)
{
#define PAD_CONTROL 0xb8000048
REG32(PAD_CONTROL)|=(1<<27);
}
#endif
if(mdio_reset)
{
if(at2_mode==0) //no auto test, show message
printk("Do MDIO_RESET\n");
mdelay(1);
// 3.MDIO Reset
PCIE_MDIO_Reset(portnum);
}
/*
PCIE_PHY_Reset(portnum);
*/
mdelay(500);
mdelay(500);
//----------------------------------------
if(mdio_reset)
{
//fix 8198 test chip pcie tx problem.
#if defined(CONFIG_RTL8198_REVISION_B) || defined(CONFIG_RTL_819XD)
if ((REG32(BSP_REVR) >= BSP_RTL8198_REVISION_B) || ((REG32(BSP_REVR)&0xfffff000) == BSP_RTL8197D))
{
#if 1//def RTL8198_FORMALCHIP_A
HostPCIe_SetPhyMdioWrite(portnum, 0, 0xD087); //bokai tell, and fix
HostPCIe_SetPhyMdioWrite(portnum, 1, 0x0003);
HostPCIe_SetPhyMdioWrite(portnum, 2, 0x4d18);
#ifdef CONFIG_PHY_EAT_40MHZ
HostPCIe_SetPhyMdioWrite(portnum, 5, 0x0BCB); //40M
#endif
#ifdef CONFIG_PHY_EAT_40MHZ
HostPCIe_SetPhyMdioWrite(portnum, 6, 0xF148); //40M
#else
HostPCIe_SetPhyMdioWrite(portnum, 6, 0xf848); //25M
#endif
HostPCIe_SetPhyMdioWrite(portnum, 7, 0x31ff);
HostPCIe_SetPhyMdioWrite(portnum, 8, 0x18d5); //peisi tune
#if 0 //old,
HostPCIe_SetPhyMdioWrite(portnum, 9, 0x531c);
HostPCIe_SetPhyMdioWrite(portnum, 0xd, 0x1766); //peisi tune
#else //saving more power, 8196c pe-si tune
HostPCIe_SetPhyMdioWrite(portnum, 0x09, 0x539c);
HostPCIe_SetPhyMdioWrite(portnum, 0x0a, 0x20eb);
HostPCIe_SetPhyMdioWrite(portnum, 0x0d, 0x1766);
#endif
#ifdef CONFIG_RTL_819XD
HostPCIe_SetPhyMdioWrite(portnum, 0x0b, 0x0711); //for sloving low performance
#else
HostPCIe_SetPhyMdioWrite(portnum, 0x0b, 0x0511); //for sloving low performance
#endif
HostPCIe_SetPhyMdioWrite(portnum, 0xf, 0x0a00);
HostPCIe_SetPhyMdioWrite(portnum, 0x19, 0xFCE0);
HostPCIe_SetPhyMdioWrite(portnum, 0x1a, 0x7e4f); //formal chip, reg 0x1a.4=0
HostPCIe_SetPhyMdioWrite(portnum, 0x1b, 0xFC01); //formal chip reg 0x1b.0=1
HostPCIe_SetPhyMdioWrite(portnum, 0x1e, 0xC280);
#endif
}
else
#endif
{
//#define PHY_USE_TEST_CHIP 1 // 1: test chip, 0: fib chip
//#define PHY_EAT_40MHZ 0 // 0: 25MHz, 1: 40MHz
//HostPCIe_SetPhyMdioWrite(portnum, 0, 0xD187);//ori
HostPCIe_SetPhyMdioWrite(portnum, 0, 0xD087);
HostPCIe_SetPhyMdioWrite(portnum, 1, 0x0003);
//HostPCIe_SetPhyMdioWrite(portnum, 2, 0x4d18);
HostPCIe_SetPhyMdioWrite(portnum, 6, 0xf448); //new
HostPCIe_SetPhyMdioWrite(portnum, 6, 0x408); //avoid noise infuse //15-12=0, 7-5=0, 0448
HostPCIe_SetPhyMdioWrite(portnum, 7, 0x31ff);
HostPCIe_SetPhyMdioWrite(portnum, 8, 0x18d5); //new
HostPCIe_SetPhyMdioWrite(portnum, 9, 0x531c);
//HostPCIe_SetPhyMdioWrite(portnum, 0xa, 0x00C9);
//HostPCIe_SetPhyMdioWrite(portnum, 0xb, 0xe511);
//HostPCIe_SetPhyMdioWrite(portnum, 0xc, 0x0820);
HostPCIe_SetPhyMdioWrite(portnum, 0xd, 0x1766);
HostPCIe_SetPhyMdioWrite(portnum, 0xf, 0x0010);//ori
// HostPCIe_SetPhyMdioWrite(portnum, 0xf, 0x0a00);
HostPCIe_SetPhyMdioWrite(portnum, 0x19, 0xFCE0);
HostPCIe_SetPhyMdioWrite(portnum, 0x1e, 0xC280);
#if 0 //saving more power
HostPCIe_SetPhyMdioWrite(0xa, 0xeb);
HostPCIe_SetPhyMdioWrite(0x9, 0x538c);
// HostPCIe_SetPhyMdioWrite(0xc, 0xC828); //original
// HostPCIe_SetPhyMdioWrite(0x0, 0x502F); //fix
HostPCIe_SetPhyMdioWrite(0xc, 0x8828); //new
HostPCIe_SetPhyMdioWrite(0x0, 0x502F); //fix
#endif
}
}
//---------------------------------------
PCIE_Device_PERST(portnum);
PCIE_PHY_Reset(portnum);
mdelay(500);
mdelay(500);
result=PCIE_Check_Link(portnum);
#if 0
if(portnum==0)
{
if(result)
{
WRITE_MEM32(BSP_PCIE0_H_PWRCR, READ_MEM32(BSP_PCIE0_H_PWRCR) & 0xFFFFFF7F);
mdelay(100);
WRITE_MEM32(BSP_PCIE0_H_PWRCR, READ_MEM32(BSP_PCIE0_H_PWRCR) | 0x00000080);
}
}
else
{
#ifdef PIN_208
if(result)
{
WRITE_MEM32(BSP_PCIE1_H_PWRCR, READ_MEM32(BSP_PCIE1_H_PWRCR) & 0xFFFFFF7F);
mdelay(100);
WRITE_MEM32(BSP_PCIE1_H_PWRCR, READ_MEM32(BSP_PCIE1_H_PWRCR) | 0x00000080);
}
#endif
}
#endif
return result;
#endif
//========================================================================================
static int rtl8196b_pci_reset(void)
{
/* If PCI needs to be reset, put code here.
* Note:
* Software may need to do hot reset for a period of time, say ~100us.
* Here we put 2ms.
*/
#if 1
//Modified for PCIE PHY parameter due to RD center suggestion by Jason 12252009
WRITE_MEM32(0xb8000044, 0x9);//Enable PCIE PLL
mdelay(10);
//WRITE_MEM32(0xb8000010, 0x00FFFFD6);//Active LX & PCIE Clock in 8196B system register
WRITE_MEM32(0xb8000010, READ_MEM32(0xb8000010)|(1<<8)|(1<<9)|(1<<10));
#ifdef PIN_208
WRITE_MEM32(0xb8000010, READ_MEM32(0xb8000010)|(1<<12));
#endif
mdelay(10);
WRITE_MEM32(0xb800003C, 0x1);//PORT0 PCIE PHY MDIO Reset
mdelay(10);
WRITE_MEM32(0xb800003C, 0x3);//PORT0 PCIE PHY MDIO Reset
mdelay(10);
#ifdef PIN_208
WRITE_MEM32(0xb8000040, 0x1);//PORT1 PCIE PHY MDIO Reset
mdelay(10);
WRITE_MEM32(0xb8000040, 0x3);//PORT1 PCIE PHY MDIO Reset
mdelay(10);
#endif
WRITE_MEM32(0xb8b01008, 0x1);// PCIE PHY Reset Close:Port 0
mdelay(10);
WRITE_MEM32(0xb8b01008, 0x81);// PCIE PHY Reset On:Port 0
mdelay(10);
#ifdef PIN_208
WRITE_MEM32(0xb8b21008, 0x1);// PCIE PHY Reset Close:Port 1
mdelay(10);
WRITE_MEM32(0xb8b21008, 0x81);// PCIE PHY Reset On:Port 1
mdelay(10);
#endif
#ifdef OUT_CYSTALL
WRITE_MEM32(0xb8b01000, 0xcc011901);// PCIE PHY Reset On:Port 0
mdelay(10);
#ifdef PIN_208
WRITE_MEM32(0xb8b21000, 0xcc011901);// PCIE PHY Reset On:Port 1
mdelay(10);
#endif
#endif
//WRITE_MEM32(0xb8000010, 0x01FFFFD6);// PCIE PHY Reset On:Port 1
WRITE_MEM32(0xb8000010, READ_MEM32(0xb8000010)|(1<<24));
mdelay(10);
#endif
WRITE_MEM32(BSP_PCIE0_H_PWRCR, READ_MEM32(BSP_PCIE0_H_PWRCR) & 0xFFFFFF7F);
#ifdef PIN_208
WRITE_MEM32(BSP_PCIE1_H_PWRCR, READ_MEM32(BSP_PCIE1_H_PWRCR) & 0xFFFFFF7F);
#endif
mdelay(100);
WRITE_MEM32(BSP_PCIE0_H_PWRCR, READ_MEM32(BSP_PCIE0_H_PWRCR) | 0x00000080);
#ifdef PIN_208
WRITE_MEM32(BSP_PCIE1_H_PWRCR, READ_MEM32(BSP_PCIE1_H_PWRCR) | 0x00000080);
#endif
return 0;
}
//========================================================================================
static int rtl8196b_pcibios_config_access(unsigned char access_type,
unsigned int addr, unsigned int *data)
{
/* Do 8bit/16bit/32bit access */
if (access_type & PCI_ACCESS_WRITE)
{
if (access_type & PCI_8BIT_ACCESS)
WRITE_MEM8(addr, *data);
else if (access_type & PCI_16BIT_ACCESS)
WRITE_MEM16(addr, *data);
else
WRITE_MEM32(addr, *data);
}
else if (access_type & PCI_ACCESS_READ)
{
if (access_type & PCI_8BIT_ACCESS)
{
#ifdef CONFIG_RTL8198_REVISION_B
unsigned int data_temp=0; int swap[4]={0,8,16,24}; int diff = addr&0x3;
data_temp=READ_MEM32(addr);
*data=(unsigned int)(( data_temp>>swap[diff])&0xff);
#else
*data = READ_MEM8(addr);
#endif
}
else if (access_type & PCI_16BIT_ACCESS)
{
#ifdef CONFIG_RTL8198_REVISION_B
unsigned int data_temp=0; int swap[4]={0,8,16,24}; int diff = addr&0x3;
data_temp=READ_MEM32(addr);
*data=(unsigned int)(( data_temp>>swap[diff])&0xffff);
#else
*data = READ_MEM16(addr);
#endif
}
else
*data = READ_MEM32(addr);
}
/* If need to check for PCIE access timeout, put code here */
/* ... */
return 0;
}
//========================================================================================
/*
* RTL8196b supports config word read access for 8/16/32 bit
*
* FIXME: currently only utilize 32bit access
*/
static int rtl8196b_pcibios0_read(struct pci_bus *bus, unsigned int devfn,
int where, int size, unsigned int *val)
{
unsigned int data = 0;
unsigned int addr = 0;
if (pci0_bus_number == 0xff)
pci0_bus_number = bus->number;
#if DEBUG_PRINTK
//printk("File: %s, Function: %s, Line: %d\n", __FILE__, __FUNCTION__, __LINE__);
//printk("Bus: %d, Slot: %d, Func: %d, Where: %d, Size: %d\n", bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size);
#endif
if (bus->number == pci0_bus_number)
{
/* PCIE host controller */
if (PCI_SLOT(devfn) == 0)
{
addr = BSP_PCIE0_H_CFG + where;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_READ | PCI_32BIT_ACCESS, addr & ~(0x3), &data))
return PCIBIOS_DEVICE_NOT_FOUND;
if (size == 1)
*val = (data >> ((where & 3) << 3)) & 0xff;
else if (size == 2)
*val = (data >> ((where & 3) << 3)) & 0xffff;
else
*val = data;
}
else
return PCIBIOS_DEVICE_NOT_FOUND;
}
else if (bus->number == (pci0_bus_number + 1))
{
/* PCIE devices directly connected */
if (PCI_SLOT(devfn) == 0)
{
addr = BSP_PCIE0_D_CFG0 + (PCI_FUNC(devfn) << 12) + where;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_READ | size, addr, val))
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
{
/* Devices connected through bridge */
if (PCI_SLOT(devfn) < MAX_NUM_DEV)
{
WRITE_MEM32(BSP_PCIE0_H_IPCFG, ((bus->number) << 8) | (PCI_SLOT(devfn) << 3) | PCI_FUNC(devfn));
addr = BSP_PCIE0_D_CFG1 + where;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_READ | size, addr, val))
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
return PCIBIOS_DEVICE_NOT_FOUND;
}
#if defined(CONFIG_RTL_819XD)
REG32(0xb8000014)=0x800200;
#endif
#if DEBUG_PRINTK
//printk("File: %s, Function: %s, Line: %d\n", __FILE__, __FUNCTION__, __LINE__);
//printk("Read Value: 0x%08X\n", *val);
#endif
return PCIBIOS_SUCCESSFUL;
}
//========================================================================================
static int rtl8196b_pcibios0_write(struct pci_bus *bus, unsigned int devfn,
int where, int size, unsigned int val)
{
unsigned int data = 0;
unsigned int addr = 0;
static int pci0_bus_number = 0xff;
if (pci0_bus_number == 0xff)
pci0_bus_number = bus->number;
#if DEBUG_PRINTK
//printk("File: %s, Function: %s, Line: %d\n", __FILE__, __FUNCTION__, __LINE__);
//printk("Bus: %d, Slot: %d, Func: %d, Where: %d, Size: %d\n", bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size);
#endif
if (bus->number == pci0_bus_number)
{
/* PCIE host controller */
if (PCI_SLOT(devfn) == 0)
{
addr = BSP_PCIE0_H_CFG + where;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_READ | PCI_32BIT_ACCESS, addr & ~(0x3), &data))
return PCIBIOS_DEVICE_NOT_FOUND;
if (size == 1)
data = (data & ~(0xff << ((where & 3) << 3))) | (val << ((where & 3) << 3));
else if (size == 2)
data = (data & ~(0xffff << ((where & 3) << 3))) | (val << ((where & 3) << 3));
else
data = val;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_WRITE | PCI_32BIT_ACCESS, addr & ~(0x3), &data))
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
return PCIBIOS_DEVICE_NOT_FOUND;
}
else if (bus->number == (pci0_bus_number + 1))
{
/* PCIE devices directly connected */
if (PCI_SLOT(devfn) == 0)
{
addr = BSP_PCIE0_D_CFG0 + (PCI_FUNC(devfn) << 12) + where;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_WRITE | size, addr, &val))
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
{
/* Devices connected through bridge */
if (PCI_SLOT(devfn) < MAX_NUM_DEV)
{
WRITE_MEM32(BSP_PCIE0_H_IPCFG, ((bus->number) << 8) | (PCI_SLOT(devfn) << 3) | PCI_FUNC(devfn));
addr = BSP_PCIE0_D_CFG1 + where;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_WRITE | size, addr, &val))
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
return PCIBIOS_DEVICE_NOT_FOUND;
}
return PCIBIOS_SUCCESSFUL;
}
//========================================================================================
/*
* RTL8196b supports config word read access for 8/16/32 bit
*
* FIXME: currently only utilize 32bit access
*/
#ifdef PIN_208
static int rtl8196b_pcibios1_read(struct pci_bus *bus, unsigned int devfn,
int where, int size, unsigned int *val)
{
unsigned int data = 0;
unsigned int addr = 0;
if (pci1_bus_number == 0xff)
pci1_bus_number = bus->number;
#if DEBUG_PRINTK
printk("File: %s, Function: %s, Line: %d\n", __FILE__, __FUNCTION__, __LINE__);
printk("Bus: %d, Slot: %d, Func: %d, Where: %d, Size: %d\n", bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size);
#endif
if (bus->number == pci1_bus_number)
{
/* PCIE host controller */
if (PCI_SLOT(devfn) == 0)
{
addr = BSP_PCIE1_H_CFG + where;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_READ | PCI_32BIT_ACCESS, addr & ~(0x3), &data))
return PCIBIOS_DEVICE_NOT_FOUND;
if (size == 1)
*val = (data >> ((where & 3) << 3)) & 0xff;
else if (size == 2)
*val = (data >> ((where & 3) << 3)) & 0xffff;
else
*val = data;
}
else
return PCIBIOS_DEVICE_NOT_FOUND;
}
else if (bus->number == (pci1_bus_number + 1))
{
/* PCIE devices directly connected */
if (PCI_SLOT(devfn) == 0)
{
addr = BSP_PCIE1_D_CFG0 + (PCI_FUNC(devfn) << 12) + where;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_READ | size, addr, val))
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
{
/* Devices connected through bridge */
if (PCI_SLOT(devfn) < MAX_NUM_DEV)
{
WRITE_MEM32(BSP_PCIE1_H_IPCFG, ((bus->number) << 8) | (PCI_SLOT(devfn) << 3) | PCI_FUNC(devfn));
addr = BSP_PCIE1_D_CFG1 + where;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_READ | size, addr, val))
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
return PCIBIOS_DEVICE_NOT_FOUND;
}
#if DEBUG_PRINTK
printk("0xb8000014:%x\n",REG32(0xb8000014));
//printk("File: %s, Function: %s, Line: %d\n", __FILE__, __FUNCTION__, __LINE__);
//printk("Read Value: 0x%08X\n", *val);
#endif
return PCIBIOS_SUCCESSFUL;
}
//========================================================================================
static int rtl8196b_pcibios1_write(struct pci_bus *bus, unsigned int devfn,
int where, int size, unsigned int val)
{
unsigned int data = 0;
unsigned int addr = 0;
static int pci1_bus_number = 0xff;
if (pci1_bus_number == 0xff)
pci1_bus_number = bus->number;
#if DEBUG_PRINTK
printk("0xb8000014:%x\n",REG32(0xb8000014));
//printk("File: %s, Function: %s, Line: %d\n", __FILE__, __FUNCTION__, __LINE__);
//printk("Bus: %d, Slot: %d, Func: %d, Where: %d, Size: %d\n", bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size);
#endif
if (bus->number == pci1_bus_number)
{
/* PCIE host controller */
if (PCI_SLOT(devfn) == 0)
{
addr = BSP_PCIE1_H_CFG + where;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_READ | PCI_32BIT_ACCESS, addr & ~(0x3), &data))
return PCIBIOS_DEVICE_NOT_FOUND;
if (size == 1)
data = (data & ~(0xff << ((where & 3) << 3))) | (val << ((where & 3) << 3));
else if (size == 2)
data = (data & ~(0xffff << ((where & 3) << 3))) | (val << ((where & 3) << 3));
else
data = val;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_WRITE | PCI_32BIT_ACCESS, addr & ~(0x3), &data))
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
return PCIBIOS_DEVICE_NOT_FOUND;
}
else if (bus->number == (pci1_bus_number + 1))
{
/* PCIE devices directly connected */
if (PCI_SLOT(devfn) == 0)
{
addr = BSP_PCIE1_D_CFG0 + (PCI_FUNC(devfn) << 12) + where;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_WRITE | size, addr, &val))
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
{
/* Devices connected through bridge */
if (PCI_SLOT(devfn) < MAX_NUM_DEV)
{
WRITE_MEM32(BSP_PCIE1_H_IPCFG, ((bus->number) << 8) | (PCI_SLOT(devfn) << 3) | PCI_FUNC(devfn));
addr = BSP_PCIE1_D_CFG1 + where;
if (rtl8196b_pcibios_config_access(PCI_ACCESS_WRITE | size, addr, &val))
return PCIBIOS_DEVICE_NOT_FOUND;
}
else
return PCIBIOS_DEVICE_NOT_FOUND;
}
return PCIBIOS_SUCCESSFUL;
}
#endif
//========================================================================================
struct pci_ops rtl8196b_pci0_ops = {
.read = rtl8196b_pcibios0_read,
.write = rtl8196b_pcibios0_write
};
#ifdef PIN_208
struct pci_ops rtl8196b_pci1_ops = {
.read = rtl8196b_pcibios1_read,
.write = rtl8196b_pcibios1_write
};
#endif
static struct pci_controller rtl8196b_pci0_controller = {
.pci_ops = &rtl8196b_pci0_ops,
.mem_resource = &rtl8196b_pci0_mem_resource,
.io_resource = &rtl8196b_pci0_io_resource,
};
#ifdef PIN_208
static struct pci_controller rtl8196b_pci1_controller = {
.pci_ops = &rtl8196b_pci1_ops,
.mem_resource = &rtl8196b_pci1_mem_resource,
.io_resource = &rtl8196b_pci1_io_resource,
};
#endif
//========================================================================================
int pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
#if DEBUG_PRINTK
printk("File: %s, Function: %s, Line: %d\n", __FILE__, __FUNCTION__, __LINE__);
printk("**Slot: %d\n", slot);
printk("**Pin: %d\n", pin);
printk("**Dev->BUS->Number: %d\n", dev->bus->number);
#endif
#if defined(CONFIG_RTL_819XD)
if (dev->bus->number < pci1_bus_number)
return BSP_PCIE_IRQ;
else
return BSP_PCIE2_IRQ;
#else
return BSP_PCIE_IRQ;
#endif
}
//========================================================================================
/* Do platform specific device initialization at pci_enable_device() time */
int pcibios_plat_dev_init(struct pci_dev *dev)
{
#if DEBUG_PRINTK
printk("File: %s, Function: %s, Line: %d\n", __FILE__, __FUNCTION__, __LINE__);
#endif
return 0;
}
static __init int bsp_pcie_init(void)
{
int Use_External_PCIE_CLK=0;
int result=0,result1=0;
printk("<<<<<Register 1st PCI Controller>>>>>\n");
mdelay(1);
//sry i need more time to figure out all how that stuff should coorectly work
#if defined(CONFIG_RTL_8196C)
result=PCIE_reset_procedure(0, 0, 1);
if (result)
register_pci_controller(&rtl8196b_pci0_controller);
else
REG32(CLK_MANAGE) &= (~(1<<11)); //disable active_pcie0
#elif defined(CONFIG_RTL_819XD)
#ifndef CONFIG_RTL_DUAL_PCIESLOT_BIWLAN_D
#ifndef PIN_208
result=PCIE_reset_procedure(0, Use_External_PCIE_CLK, 1);
#else
result=PCIE_reset_procedure(0, Use_External_PCIE_CLK, 1);
mdelay(1);
result1=PCIE_reset_procedure(1, Use_External_PCIE_CLK, 1);
#endif
#else //wei add
OnlyOneReset();
result=PCIE_Check_Link(0);
result1=PCIE_Check_Link(1);
#endif
#if DEBUG_PRINTK
printk("<<<<<Register 1st PCI Controller>>>>>\n");
#ifdef PIN_208
printk("<<<<<Register 2nd PCI Controller>>>>>\n");
#endif
#endif
mdelay(1);
#ifndef CONFIG_RTL_DUAL_PCIESLOT_BIWLAN_D
if(result)
register_pci_controller(&rtl8196b_pci0_controller);
else
{
REG32(CLK_MANAGE) &= (~(1<<14)); //disable active_pcie0
}
#ifdef PIN_208
if(result1)
register_pci_controller(&rtl8196b_pci1_controller);
else
{
REG32(CLK_MANAGE) &= (~(1<<16)); //disable active_pcie1
}
#endif
#else
if(result1)
register_pci_controller(&rtl8196b_pci1_controller);
else
{ REG32(CLK_MANAGE) &= (~(1<<16)); //disable active_pcie1
}
if(result)
register_pci_controller(&rtl8196b_pci0_controller);
else
{ REG32(CLK_MANAGE) &= (~(1<<14)); //disable active_pcie0
}
#endif
#endif
return 0
}
arch_initcall(bsp_pcie_init);
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