/*****************************************
* Configure RS780 registers to power-on default RPR.
* POR: Power On Reset
* RPR: Register Programming Requirements
*****************************************/
static void rs780_por_init(pci_devfn_t nb_dev)
{
printk(BIOS_INFO, "rs780_por_init\n");
/* ATINB_PCICFG_POR_TABLE, initialize the values for rs780 PCI Config registers */
rs780_por_pcicfg_init(nb_dev);
/* ATINB_MCIND_POR_TABLE */
rs780_por_mc_index_init(nb_dev);
/* ATINB_MISCIND_POR_TABLE */
rs780_por_misc_index_init(nb_dev);
/* ATINB_HTIUNBIND_POR_TABLE */
rs780_por_htiu_index_init(nb_dev);
/* ATINB_CLKCFG_PORT_TABLE */
/* rs780 A11 SB Link full swing? */
/* SET NB_MISC_REG01 BIT8 to Enable HDMI, reference CIMX_5_9_3 NBPOR_InitPOR(),
* then the accesses to internal graphics IO space 0x60/0x64, are forwarded to
* nbconfig:0x60/0x64
*/
set_nbmisc_enable_bits(nb_dev, 0x01, ~(1 << 8), (1 << 8));
}
/*****************************************
* Compliant with CIM_33's PCIEMiscClkProg
*****************************************/
void pcie_config_misc_clk(device_t nb_dev)
{
u32 reg;
//struct bus pbus; /* fake bus for dev0 fun1 */
reg = pci_read_config32(nb_dev, 0x4c);
reg |= 1 << 0;
pci_write_config32(nb_dev, 0x4c, reg);
#if 0 /* TODO: Check the mics clock later. */
if (AtiPcieCfg.Config & PCIE_GFX_CLK_GATING) {
/* TXCLK Clock Gating */
set_nbmisc_enable_bits(nb_dev, 0x07, 3 << 0, 3 << 0);
set_nbmisc_enable_bits(nb_dev, 0x07, 1 << 22, 1 << 22);
set_pcie_enable_bits(nb_dev, 0x11 | PCIE_CORE_INDEX_GFX, (3 << 6) | (~0xf), 3 << 6);
/* LCLK Clock Gating */
reg = pci_cf8_conf1.read32(&pbus, 0, 1, 0x94);
reg &= ~(1 << 16);
pci_cf8_conf1.write32(&pbus, 0, 1, 0x94, reg);
}
if (AtiPcieCfg.Config & PCIE_GPP_CLK_GATING) {
/* TXCLK Clock Gating */
set_nbmisc_enable_bits(nb_dev, 0x07, 3 << 4, 3 << 4);
set_nbmisc_enable_bits(nb_dev, 0x07, 1 << 22, 1 << 22);
set_pcie_enable_bits(nb_dev, 0x11 | PCIE_CORE_INDEX_SB, (3 << 6) | (~0xf), 3 << 6);
/* LCLK Clock Gating */
reg = pci_cf8_conf1.read32(&pbus, 0, 1, 0x94);
reg &= ~(1 << 24);
pci_cf8_conf1.write32(&pbus, 0, 1, 0x94, reg);
}
#endif
reg = pci_read_config32(nb_dev, 0x4c);
reg &= ~(1 << 0);
pci_write_config32(nb_dev, 0x4c, reg);
}
void rs780_after_pci_fixup(void) {
device_t dev;
/* bus0, dev0, fun0; */
dev = _pci_make_tag(0, 0, 0);
rs780_enable(dev);
#if 1
/* bus0, dev1, APC. */
printk_info("Bus-0, Dev-1, Fun-0.\n");
dev = _pci_make_tag(0, 1, 0);
rs780_internal_gfx_init(_pci_make_tag(0,0,0) , _pci_make_tag(0,1,0));
rs780_enable(dev);
/* bus0, dev2,3, two GFX */
printk_info("Bus-0, Dev-2, Fun-0\n");
dev = _pci_make_tag(0, 2, 0);
rs780_enable(dev);
printk_info("Bus-0, Dev-3, Fun-0\n");
dev = _pci_make_tag(0, 3, 0);
set_nbmisc_enable_bits(_pci_make_tag(0, 0, 0), 0x0c, 1 << 3,0 << 3);
rs780_gfx_3_init(_pci_make_tag(0, 0, 0), dev, 3);
/* bus0, dev4-7, four GPPSB */
printk_info("Bus-0, Dev-4, Fun-0\n");
dev = _pci_make_tag(0, 4, 0);
rs780_enable(dev);
printk_info("Bus-0, Dev-5, Fun-0\n");
dev = _pci_make_tag(0, 5, 0);
rs780_enable(dev);
printk_info("Bus-0, Dev-6, Fun-0\n");
dev = _pci_make_tag(0, 6, 0);
rs780_enable(dev);
printk_info("Bus-0, Dev-7, Fun-0\n");
dev = _pci_make_tag(0, 7, 0);
rs780_enable(dev);
/* bus 0, dev 9,10, GPP */
printk_info("Bus-0, Dev-9, Fun-0\n");
dev = _pci_make_tag(0, 9, 0);
rs780_enable(dev);
printk_info("Bus-0, Dev-10, Fun-0\n");
dev = _pci_make_tag(0, 10, 0);
rs780_enable(dev);
/* bus0, dev8, SB */
printk_info("Bus-0, Dev-8, Fun-0\n");
dev = _pci_make_tag(0, 8, 0);
rs780_enable(dev);
#endif
}
void init_gen2(device_t nb_dev, device_t dev, u8 port)
{
u32 reg, val;
/* for A11 (0x89 == 0) */
reg = 0x34;
if (port <= 3){
val = 1<<5;
}else{
val = 1<<31;
if (port >= 9 )
reg = 0x39;
}
/* todo: check for rev > a11
switch (port) {
case 2;
reg = 0x34;
val = 1<<5;
break;
case 3:
reg = 0x22;
val = 1<<6;
break;
case 4:
reg = 0x34;
val = 1<<31;
break;
case 5:
case 6:
reg = 0x39;
val = 1<<31;
break;
case 7..9:
reg = 0x37;
val = 1<<port;
break;
case 10:
reg = 0x22;
val = 1<<5;
break;
default:
reg = 0;
break;
}
*/
set_pcie_enable_bits(dev, 0xA4, 0x1, 0x1);
pci_ext_write_config32(nb_dev, dev, 0x88, 0xF0, 1<<2); /* LINK_CRTL2*/
set_nbmisc_enable_bits(nb_dev, reg, val, val);
}
/*
* nb_lock :
* close or hide unsed modules and lock the whole NB registers
*/
static void nb_lock(void)
{
pcitag_t nb_dev = _pci_make_tag(0, 0, 0);
pcitag_t igfx_dev = _pci_make_tag(1, 5, 0);
u32 base;
u32 val;
/* enable 2D optimization as configured */
if(ati_nb_cfg.gfx_config & (GFX_SP_ENABLE | GFX_UMA_ENABLE)){
if( (!(ati_nb_cfg.ext_config & EXT_DEBUG_GFX32BIT_MODE)) && (ati_nb_cfg.gfx_config & GFX_2D_OPTIMIZATION) ){
base = (_pci_conf_read(igfx_dev, 0x18) & 0xfffffff0) | 0xA0000000;
if(base){
/* open memory access */
set_nbcfg_enable_bits(igfx_dev, 0x04, 1 << 1, 1 << 1);
/* enable 2D accelerator */
val = *(volatile u32 *)(base | 0x4100); // 0x40FC + 4 ???
val |= 1 << 0;
*(volatile u32 *)(base | 0x4100) = val;
DEBUG_INFO("NB POST STAGE : nb_lock : 2D enable : address abnormal?\n");
}
}
}
/* enable decode for debug BAR */
if( (ati_nb_cfg.gfx_config & (GFX_SP_ENABLE | GFX_UMA_ENABLE)) && (_pci_conf_read(nb_dev, 0x8C) & (1 << 9)) ){
set_nbcfg_enable_bits(nb_dev, 0x8C, 1 << 10, 1 << 10);
}else{
set_nbcfg_enable_bits(nb_dev, 0x8C, 3 << 9, 0 << 9);
}
/* Hide PM2 bar */
set_nbcfg_enable_bits(nb_dev, 0x4C, 1 << 17, 0 << 17);
/* set proper unused index for inderect space */
/* lock the NB */
set_nbmisc_enable_bits(nb_dev, 0x00, (1 << 0) | (1 << 7), (1 << 0) | (1 << 7));
return;
}
/* enable CFG access to Dev8, which is the SB P2P Bridge */
void enable_rs780_dev8(void)
{
set_nbmisc_enable_bits(PCI_DEV(0, 0, 0), 0x00, 1 << 6, 1 << 6);
}
static void rs780_por_misc_index_init(pci_devfn_t nb_dev)
{
/* NB_MISC_IND_WR_EN + IOC_PCIE_CNTL
* Block non-snoop DMA request if PMArbDis is set.
* Set BMSetDis */
set_nbmisc_enable_bits(nb_dev, 0x0B, ~0xFFFF0000, 0x00000180);
set_nbmisc_enable_bits(nb_dev, 0x01, ~0xFFFFFFFF, 0x00000040);
/* NBCFG (NBMISCIND 0x0): NB_CNTL -
* HIDE_NB_AGP_CAP ([0], default=1)HIDE
* HIDE_P2P_AGP_CAP ([1], default=1)HIDE
* HIDE_NB_GART_BAR ([2], default=1)HIDE
* AGPMODE30 ([4], default=0)DISABLE
* AGP30ENCHANCED ([5], default=0)DISABLE
* HIDE_AGP_CAP ([8], default=1)ENABLE */
set_nbmisc_enable_bits(nb_dev, 0x00, ~0xFFFF0000, 0x00000506); /* set bit 10 for MSI */
/* NBMISCIND:0x6A[16]= 1 SB link can get a full swing
* set_nbmisc_enable_bits(nb_dev, 0x6A, 0ffffffffh, 000010000);
* NBMISCIND:0x6A[17]=1 Set CMGOOD_OVERRIDE. */
set_nbmisc_enable_bits(nb_dev, 0x6A, ~0xffffffff, 0x00020000);
/* NBMISIND:0x40 Bit[8]=1 and Bit[10]=1 following bits are required to set in order to allow LVDS or PWM features to work. */
set_nbmisc_enable_bits(nb_dev, 0x40, ~0xffffffff, 0x00000500);
/* NBMISIND:0xC Bit[13]=1 Enable GSM mode for C1e or C3 with pop-up. */
set_nbmisc_enable_bits(nb_dev, 0x0C, ~0xffffffff, 0x00002000);
/* Set NBMISIND:0x1F[3] to map NB F2 interrupt pin to INTB# */
set_nbmisc_enable_bits(nb_dev, 0x1F, ~0xffffffff, 0x00000008);
/*
* Enable access to DEV8
* Enable setPower message for all ports
*/
set_nbmisc_enable_bits(nb_dev, 0x00, 1 << 6, 1 << 6);
set_nbmisc_enable_bits(nb_dev, 0x0b, 1 << 20, 1 << 20);
set_nbmisc_enable_bits(nb_dev, 0x51, 1 << 20, 1 << 20);
set_nbmisc_enable_bits(nb_dev, 0x53, 1 << 20, 1 << 20);
set_nbmisc_enable_bits(nb_dev, 0x55, 1 << 20, 1 << 20);
set_nbmisc_enable_bits(nb_dev, 0x57, 1 << 20, 1 << 20);
set_nbmisc_enable_bits(nb_dev, 0x59, 1 << 20, 1 << 20);
set_nbmisc_enable_bits(nb_dev, 0x5B, 1 << 20, 1 << 20);
set_nbmisc_enable_bits(nb_dev, 0x5D, 1 << 20, 1 << 20);
set_nbmisc_enable_bits(nb_dev, 0x5F, 1 << 20, 1 << 20);
set_nbmisc_enable_bits(nb_dev, 0x00, 1 << 7, 1 << 7);
set_nbmisc_enable_bits(nb_dev, 0x07, 0x000000f0, 0x30);
set_nbmisc_enable_bits(nb_dev, 0x01, 0xFFFFFFFF, 0x48);
/* Disable bus-master trigger event from SB and Enable set_slot_power message to SB */
set_nbmisc_enable_bits(nb_dev, 0x0B, 0xffffffff, 0x500180);
}
void rs780_enable(device_t dev)
{
device_t nb_dev, sb_dev;
int dev_ind;
nb_dev = _pci_make_tag(0, 0, 0);
sb_dev = _pci_make_tag(0, 8, 0);
_pci_break_tag(dev, NULL, &dev_ind, NULL);
switch(dev_ind) {
case 0:
printk_info("enable_pcie_bar3\n");
enable_pcie_bar3(nb_dev); /* PCIEMiscInit */
printk_info("config_gpp_core\n");
config_gpp_core(nb_dev, sb_dev);
printk_info("rs780_gpp_sb_init\n");
rs780_gpp_sb_init(nb_dev, sb_dev, 8);
/* set SB payload size: 64byte */
printk_info("set sb payload size:64byte\n");
set_pcie_enable_bits(nb_dev, 0x10 | PCIE_CORE_INDEX_GPPSB, 3 << 11, 2 << 11);
/* Bus0Dev0Fun1Clock control init, we have to do it here, for dev0 Fun1 doesn't have a vendor or device ID */
//rs780_config_misc_clk(nb_dev);
{ /* BTDC: NBPOR_InitPOR function. */
u8 temp8;
u16 temp16;
u32 temp32;
/* BTDC: Program NB PCI table. */
printk_info("Program NB PCI table\n");
temp16 = pci_read_config16(nb_dev, 0x04);
printk_debug("BTDC: NB_PCI_REG04 = %x.\n", temp16);
temp32 = pci_read_config32(nb_dev, 0x84);
printk_debug("BTDC: NB_PCI_REG84 = %x.\n", temp32);
pci_write_config8(nb_dev, 0x4c, 0x42);
temp8 = pci_read_config8(nb_dev, 0x4e);
temp8 |= 0x05;
pci_write_config8(nb_dev, 0x4e, temp8);
temp32 = pci_read_config32(nb_dev, 0x4c);
printk_debug("BTDC: NB_PCI_REG4C = %x.\n", temp32);
/* BTDC: disable GFX debug. */
printk_info("disable gfx debug\n");
temp8 = pci_read_config8(nb_dev, 0x8d);
temp8 &= ~(1<<1);
pci_write_config8(nb_dev, 0x8d, temp8);
/* BTDC: set temporary NB TOM to 0x40000000. */
//printk_info("set temporary NB TOM to 0xf0000000\n");
//pci_write_config32(nb_dev, 0x90, 0x40000000);
//pci_write_config32(nb_dev, 0x90, 0xf0000000);
printk_info("set temporary NB TOM to 0xffffffff\n");
pci_write_config32(nb_dev, 0x90, 0xffffffff);
/* BTDC: Program NB HTIU table. */
printk_info("Program NB HTIU table\n");
set_htiu_enable_bits(nb_dev, 0x05, 1<<10 | 1<<9, 1<<10|1<<9);
set_htiu_enable_bits(nb_dev, 0x06, 1, 0x4203a202);
set_htiu_enable_bits(nb_dev, 0x07, 1<<1 | 1<<2, 0x8001);
set_htiu_enable_bits(nb_dev, 0x15, 0, 1<<31 | 1<<30 | 1<<27);
set_htiu_enable_bits(nb_dev, 0x1c, 0, 0xfffe0000);
set_htiu_enable_bits(nb_dev, 0x4b, 1<<11, 1<<11);
set_htiu_enable_bits(nb_dev, 0x0c, 0x3f, 1 | 1<<3);
set_htiu_enable_bits(nb_dev, 0x17, 1<<1 | 1<<27, 1<<1);
set_htiu_enable_bits(nb_dev, 0x17, 0, 1<<30);
set_htiu_enable_bits(nb_dev, 0x19, 0xfffff+(1<<31), 0x186a0+(1<<31));
set_htiu_enable_bits(nb_dev, 0x16, 0x3f<<10, 0x7<<10);
set_htiu_enable_bits(nb_dev, 0x23, 0, 1<<28);
/* BTDC: Program NB MISC table. */
printk_info("set NB MISC table\n");
set_nbmisc_enable_bits(nb_dev, 0x0b, 0xffff, 0x00000180);
set_nbmisc_enable_bits(nb_dev, 0x00, 0xffff, 0x00000106);
set_nbmisc_enable_bits(nb_dev, 0x51, 0xffffffff, 0x00100100);
set_nbmisc_enable_bits(nb_dev, 0x53, 0xffffffff, 0x00100100);
set_nbmisc_enable_bits(nb_dev, 0x55, 0xffffffff, 0x00100100);
set_nbmisc_enable_bits(nb_dev, 0x57, 0xffffffff, 0x00100100);
set_nbmisc_enable_bits(nb_dev, 0x59, 0xffffffff, 0x00100100);
set_nbmisc_enable_bits(nb_dev, 0x5b, 0xffffffff, 0x00100100);
set_nbmisc_enable_bits(nb_dev, 0x5d, 0xffffffff, 0x00100100);
set_nbmisc_enable_bits(nb_dev, 0x5f, 0xffffffff, 0x00100100);
set_nbmisc_enable_bits(nb_dev, 0x20, 1<<1, 0);
set_nbmisc_enable_bits(nb_dev, 0x37, 1<<11|1<<12|1<<13|1<<26, 0);
set_nbmisc_enable_bits(nb_dev, 0x68, 1<<5|1<<6, 1<<5);
set_nbmisc_enable_bits(nb_dev, 0x6b, 1<<22, 1<<10);
set_nbmisc_enable_bits(nb_dev, 0x67, 1<<26, 1<<14|1<<10);
set_nbmisc_enable_bits(nb_dev, 0x24, 1<<28|1<<26|1<<25|1<<16, 1<<29|1<<25);
set_nbmisc_enable_bits(nb_dev, 0x38, 1<<24|1<<25, 1<<24);
set_nbmisc_enable_bits(nb_dev, 0x36, 1<<29, 1<<29|1<<28);
set_nbmisc_enable_bits(nb_dev, 0x0c, 0, 1<<13);
set_nbmisc_enable_bits(nb_dev, 0x34, 1<<22, 1<<10);
set_nbmisc_enable_bits(nb_dev, 0x39, 1<<10, 1<<30);
set_nbmisc_enable_bits(nb_dev, 0x22, 1<<3, 0);
set_nbmisc_enable_bits(nb_dev, 0x68, 1<<19, 0);
set_nbmisc_enable_bits(nb_dev, 0x24, 1<<16|1<<17, 1<<17);
set_nbmisc_enable_bits(nb_dev, 0x6a, 1<<22|1<<23, 1<<17|1<<23);
set_nbmisc_enable_bits(nb_dev, 0x35, 1<<21|1<<22, 1<<22);
set_nbmisc_enable_bits(nb_dev, 0x01, 0xffffffff, 0x48);
/* BTDC: the last two step. */
set_nbmisc_enable_bits(nb_dev, 0x01, 1<<8, 1<<8);
set_htiu_enable_bits(nb_dev, 0x2d, 1<<6|1<<4, 1<<6|1<<4);
}
break;
case 1: /* bus0, dev1, APC. */
printk_info("Bus-0, Dev-1, Fun-0.\n");
rs780_internal_gfx_enable(nb_dev,dev);
break;
case 2:
case 3:
set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << dev_ind,
(1 ? 0 : 1) << dev_ind);
rs780_gfx_init(nb_dev, dev, dev_ind);
break;
case 4: /* bus0, dev4-7, four GPP */
case 5:
case 6:
case 7:
enable_pcie_bar3(nb_dev); /* PCIEMiscInit */
set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << dev_ind,
(1 ? 0 : 1) << dev_ind);
rs780_gpp_sb_init(nb_dev, dev, dev_ind);
break;
case 8: /* bus0, dev8, SB */
set_nbmisc_enable_bits(nb_dev, 0x00, 1 << 6,
(1 ? 0 : 1) << dev_ind);
rs780_gpp_sb_init(nb_dev, dev, dev_ind);
disable_pcie_bar3(nb_dev);
break;
case 9: /* bus 0, dev 9,10, GPP */
case 10:
enable_pcie_bar3(nb_dev); /* PCIEMiscInit */
set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << (7 + dev_ind),
(1 ? 0 : 1) << (7 + dev_ind));
rs780_gpp_sb_init(nb_dev, dev, dev_ind);
break;
default:
printk_debug("unknown dev: %s\n", dev_ind);
}
}
/*****************************************
* Compliant with CIM_33's PCIEGPPInit
* nb_dev:
* root bridge struct
* dev:
* p2p bridge struct
* port:
* p2p bridge number, 4-10
*****************************************/
void sr5650_gpp_sb_init(device_t nb_dev, device_t dev, u32 port)
{
u32 gpp_sb_sel = 0;
struct southbridge_amd_sr5650_config *cfg =
(struct southbridge_amd_sr5650_config *)nb_dev->chip_info;
printk(BIOS_DEBUG, "gpp_sb_init nb_dev=0x%p, dev=0x%p, port=0x%x\n", nb_dev, dev, port);
switch (port) {
case 2:
case 3:
gpp_sb_sel = PCIE_CORE_INDEX_GPP1;
break;
case 4 ... 7:
case 9:
case 10:
gpp_sb_sel = PCIE_CORE_INDEX_GPP3a;
break;
case 8:
gpp_sb_sel = PCIE_CORE_INDEX_SB;
break;
case 11:
case 12:
gpp_sb_sel = PCIE_CORE_INDEX_GPP2;
break;
case 13:
gpp_sb_sel = PCIE_CORE_INDEX_GPP3b;
break;
}
/* Init common Core registers */
set_pcie_enable_bits(dev, 0xB1, 1 << 28 | 1 << 23 | 1 << 20 | 1 << 19,
1 << 28 | 1 << 23 | 1 << 20 | 1 << 19);
if (gpp_sb_sel == PCIE_CORE_INDEX_GPP3a) {
set_pcie_enable_bits(dev, 0xB1, 1 << 22, 1 << 22);
/* 4.3.3.2.3 Step 10: Dynamic Slave CPL Buffer Allocation */
gpp3a_cpl_buf_alloc(nb_dev, dev);
}
if (gpp_sb_sel == PCIE_CORE_INDEX_GPP1 || gpp_sb_sel == PCIE_CORE_INDEX_GPP2) {
gpp12_cpl_buf_alloc(nb_dev, dev);
}
set_pcie_enable_bits(dev, 0xA1, (1 << 26) | (1 << 24) | (1 << 11), 1 << 11);
set_pcie_enable_bits(dev, 0xA0, 0x0000FFF0, 0x6830);
// PCIE should not ignore malformed packet error or ATS request
set_pcie_enable_bits(dev, 0x70, 1 << 12, 0);
//Step 14.1: Advertising Hot Plug Capabilities
set_pcie_enable_bits(dev, 0x10, 1 << 4, 1 << 4); //Enable power fault
set_pcie_enable_bits(nb_dev, 0xC1 | gpp_sb_sel, 1 << 0, 1 << 0);
/* init GPP core */
/* 4.4.2.step13.1. Sets RCB completion timeout to be 200ms */
pci_ext_write_config32(nb_dev, dev, 0x80, 0xF << 0, 0x6 << 0);
/* 4.4.2.step13.2. RCB completion timeout on link down to shorten enumeration time. */
set_pcie_enable_bits(dev, 0x70, 1 << 19, 1 << 19);
/* 4.4.2.step13.3. Enable slave ordering rules */
set_pcie_enable_bits(nb_dev, 0x20 | gpp_sb_sel, 1 << 8, 0 << 8);
/* 4.4.2.step13.4. Sets DMA payload size to 64 bytes. */
set_pcie_enable_bits(nb_dev, 0x10 | gpp_sb_sel, 7 << 10, 4 << 10);
/* 4.4.2.step13.5. Set REGS_DLP_IGNORE_IN_L1_EN to ignore DLLPs
during L1 so that Tx Clk can be turned off. */
set_pcie_enable_bits(nb_dev, 0x02 | gpp_sb_sel, 1 << 0 | 1 << 8, 1 << 0 | 1 << 8); // add bit 8 from CIMx
/* 4.4.2.step13.6. Set REGS_LC_ALLOW_TX_L1_CONTROL to allow TX to
prevent LC from going to L1 when there are outstanding completions.*/
set_pcie_enable_bits(dev, 0x02, 1 << 15, 1 << 15);
/* 4.4.2.step13.7. Set REGS_LC_DONT_GO_TO_L0S_IF_L1_ARMED to prevent
lc to go to from L0 to Rcv_L0s if L1 is armed. */
set_pcie_enable_bits(dev, 0xA1, 1 << 11, 1 << 11);
/* 4.4.2.step13.8. CMGOOD_OVERRIDE for all five PCIe cores. */
set_nbmisc_enable_bits(nb_dev, 0x22, 1 << 27, 1 << 27);
/* 4.4.2.step13.9. Prevents Electrical Idle from causing a
transition from Rcv_L0 to Rcv_L0s. */
set_pcie_enable_bits(dev, 0xB1, 1 << 20, 1 << 20);
/* 4.4.2.step13.10. Prevents the LTSSM from going to Rcv_L0s if
it has already acknowledged a request to go
to L1 but it has not transitioned there yet. */
/* seems the same as step13.7 */
set_pcie_enable_bits(dev, 0xA1, 1 << 11, 1 << 11);
/* 4.4.2.step13.11. Transmits FTS before Recovery. */
set_pcie_enable_bits(dev, 0xA3, 1 << 9, 1 << 9);
/* 4.4.2.step13.12. Sets TX arbitration algorithm to round robin
for PCIE-GPP1, PCIE-GPP2, PCIE-GPP3a and PCIE-GPP3b cores only. */
//if (gpp_sb_sel != PCIE_CORE_INDEX_SB) /* RPR NOT set SB_CORE, BTS set SB_CORE, we comply with BTS */
set_pcie_enable_bits(nb_dev, 0x1C | gpp_sb_sel, 0x7FF, 0x109);
/* 4.4.2.step13.13. Sets number of TX Clocks to drain TX Pipe to 0x3.*/
set_pcie_enable_bits(dev, 0xA0, 0xF << 4, 0x3 << 4);
/* 4.4.2.step13.14. Lets PI use Electrical Idle from PHY when
turning off PLL in L1 at Gen 2 speed instead of Inferred Electrical
Idle.
NOTE: LC still uses Inferred Electrical Idle. */
set_pcie_enable_bits(nb_dev, 0x40 | gpp_sb_sel, 3 << 14, 2 << 14);
/* 4.4.2.step13.15. Turn on rx_fronten_en for all active lanes upon
exit from Electrical Idle, rather than being tied to PLL_PDNB. */
set_pcie_enable_bits(nb_dev, 0xC2 | gpp_sb_sel, 1 << 25, 1 << 25);
/* 4.4.2.step13.16. Advertises TX L0s and L1 exit latency.
TX L0s exit latency to be 100b: 512ns to less than 1us;
L1 exit latency to be 011b: 4us to less than 8us.
For Hot-Plug Slots: Advertise TX L0s and L1 exit latency.
TX L0s exit latency to be 110b: 2us to 4us.
L1 exit latency to be 111b: more than 64us.*/
//set_pcie_enable_bits(dev, 0xC1, 0xF << 0, 0xC << 0); /* 0xF for htplg. */
set_pcie_enable_bits(dev, 0xC1, 0xF << 0, 0xF << 0); /* 0xF for htplg. */
/* 4.4.2.step13.17. Always ACK an ASPM L1 entry DLLP to
workaround credit control issue on PM_NAK
message of SB700 and SB800. */
/* 4.4.4.step13.18. To allow advertising Gen 2 capabilities to Southbridge. */
if (port == 8) {
set_pcie_enable_bits(dev, 0xA0, 1 << 23, 1 << 23);
set_pcie_enable_bits(nb_dev, 0xC1 | gpp_sb_sel, 1 << 1, 1 << 1);
}
/* 4.4.2.step13.19. CMOS Option (Gen 2 AUTO-Part 1 - Enabled by Default) */
/* 4.4.2.step13.20. CMOS Option (RC Advertised Gen 2-Part1 - Disabled by Default)*/
set_nbcfg_enable_bits(dev, 0x88, 0xF << 0, 0x2 << 0);
/* Disables GEN2 capability of the device.
* RPR typo- it says enable but the bit setting says disable.
* Disable it here and we enable it later. */
set_pcie_enable_bits(dev, 0xA4, 1 << 0, 1 << 0);
/* 4.4.2.step13.21. */
/* 4.4.2.step13.22 */
/* Enable native PME. */
set_pcie_enable_bits(dev, 0x10, 1 << 3, 1 < 3);
/* This bit when set indicates that the PCIe Link associated with this port
is connected to a slot. */
pci_ext_write_config32(nb_dev, dev, 0x5a, 1 << 8, 1 << 8);
/* This bit when set indicates that this slot is capable of supporting
Hot-Plug operations. */
set_nbcfg_enable_bits(dev, 0x6C, 1 << 6, 1 << 6);
/* Enables flushing of TLPs when Data Link is down. */
set_pcie_enable_bits(dev, 0x20, 1 << 19, 0 << 19);
/* 4.4.2.step14. Server Class Hot Plug Feature */
/* 4.4.2 step14.1: Advertising Hot Plug Capabilities */
/* 4.4.2.step14.2: Firmware Upload */
/* 4.4.2.Step14.3: SBIOS Acknowledgment to Firmware of Successful Firmware Upload */
/* step14.4 */
/* step14.5 */
/* skip */
/* CIMx LPC Deadlock workaround - Enable Memory Write Map*/
if (gpp_sb_sel == PCIE_CORE_INDEX_SB) {
set_pcie_enable_bits(nb_dev, 0x10 | gpp_sb_sel, 1 << 9, 1 << 9);
set_htiu_enable_bits(nb_dev, 0x06, 1 << 26, 1 << 26);
}
/* This CPL setup requires more than this one register and should be done in gpp_core.
* The additional setup is for the different revisions. */
/* CIMx CommonPortInit settings that are not set above. */
pci_ext_write_config32(nb_dev, dev, 0x88, 0xF0, 1 << 0); /* LINK_CRTL2 */
if ( port == 8 )
set_pcie_enable_bits(dev, 0xA0, 0, 1 << 23);
/* set automatic Gen2 support, needs mainboard config option as Gen2 can cause issues on some platforms. */
init_gen2(nb_dev, dev, port);
set_pcie_enable_bits(dev, 0xA4, 1 << 29, 1 << 29);
set_pcie_enable_bits(dev, 0xC0, 1 << 15, 0);
set_pcie_enable_bits(dev, 0xA2, 1 << 13, 0);
/* Hotplug Support - bit5 + bit6 capable and surprise */
pci_ext_write_config32(nb_dev, dev, 0x6c, 0x60, 0x60);
/* Set interrupt pin info 0x3d */
pci_ext_write_config32(nb_dev, dev, 0x3c, 1 << 8, 1 << 8);
/* 5.12.9.3 Hotplug step 1 - NB_PCIE_ROOT_CTRL - enable pm irq
The RPR is wrong - this is not a PCIEND_P register */
pci_ext_write_config32(nb_dev, dev, 0x74, 1 << 3, 1 << 3);
/* 5.12.9.3 step 2 - PCIEP_PORT_CNTL - enable hotplug messages */
if ( port != 8)
set_pcie_enable_bits(dev, 0x10, 1 << 2, 1 << 2);
/* Not sure about this PME setup */
/* Native PME */
set_pcie_enable_bits(dev, 0x10, 1 << 3, 1 << 3); /* Not set in CIMx */
/* PME Enable */
pci_ext_write_config32(nb_dev, dev, 0x54, 1 << 8, 1 << 8); /* Not in CIMx */
/* 4.4.3 Training for GPP devices */
/* init GPP */
switch (port) {
case 2:
case 3:
case 4: /* GPP_SB */
case 5:
case 6:
case 7:
case 9: /*GPP*/
case 10:
case 11:
case 12:
case 13:
/* 4.4.2.step13.5. Blocks DMA traffic during C3 state */
set_pcie_enable_bits(dev, 0x10, 1 << 0, 0 << 0);
/* Enabels TLP flushing */
set_pcie_enable_bits(dev, 0x20, 1 << 19, 0 << 19);
/* check port enable */
if (cfg->port_enable & (1 << port)) {
PcieReleasePortTraining(nb_dev, dev, port);
if (!(AtiPcieCfg.Config & PCIE_GPP_COMPLIANCE)) {
u8 res = PcieTrainPort(nb_dev, dev, port);
printk(BIOS_DEBUG, "PcieTrainPort port=0x%x result=%d\n", port, res);
if (res) {
AtiPcieCfg.PortDetect |= 1 << port;
}
}
}
break;
case 8: /* SB */
break;
default:
break;
}
/* Re-enable RC ordering logic after training (from CIMx)*/
set_pcie_enable_bits(nb_dev, 0x20 | gpp_sb_sel, 1 << 9, 0);
/* Advertising Hot Plug Capabilities */
pci_ext_write_config32(nb_dev, dev, 0x6c, 0x04001B, 0x00001B);
/* PCIE Late Init (CIMx late init - Maybe move somewhere else? Later in the coreboot PCI device enum?) */
/* Set Slot Number */
pci_ext_write_config32(nb_dev, dev, 0x6c, 0x1FFF << 19, port << 19);
/* Set Slot present 0x5A*/
pci_ext_write_config32(nb_dev, dev, 0x58, 1 << 24, 1 << 24);
//PCIE-GPP1 TXCLK Clock Gating In L1 Late Core sttting - Maybe move somewhere else? */
set_pcie_enable_bits(nb_dev, 0x11 | gpp_sb_sel, 0xF << 0, 0x0C << 0);
/* Enable powering down PLLs in L1 or L23 Ready states.
* Turns off PHY`s RX FRONTEND during L1 when PLL power down is enabled */
set_pcie_enable_bits(nb_dev, 0x40 | gpp_sb_sel, 0x1219, 0x1009);
/* 4.4..7.1 TXCLK Gating in L1, Enables powering down TXCLK clock pads on the receive side. */
set_pcie_enable_bits(nb_dev, 0x40 | gpp_sb_sel, 1 << 6, 1 << 6);
/* Step 21: Register Locking PCIE Misc. Late Core sttting - Must move somewhere do PciInitLate FIXME */
/* Lock HWInit Register */
//set_pcie_enable_bits(nb_dev, 0x10 | gpp_sb_sel, 1 << 0, 1 << 0);
/* Step 27: LCLK Gating */
//EnableLclkGating(dev);
/* Set Common Clock */
/* If dev present, set PcieCapPtr+0x10, BIT6);
* set dev 0x68,bit 6
* retrain link, set dev, 0x68 bit 5;
* wait dev 0x6B bit3 clear
*/
if (port == 8){
PciePowerOffGppPorts(nb_dev, dev, port); /* , This should be run for all ports that are not hotplug and don't detect devices */
}
}
/***********************************************
* 0:00.0 NBCFG :
* 0:00.1 CLK : bit 0 of nb_cfg 0x4c : 0 - disable, default
* 0:01.0 P2P Internal:
* 0:02.0 P2P : bit 2 of nbmiscind 0x0c : 0 - enable, default + 32 * 2
* 0:03.0 P2P : bit 3 of nbmiscind 0x0c : 0 - enable, default + 32 * 2
* 0:04.0 P2P : bit 4 of nbmiscind 0x0c : 0 - enable, default + 32 * 2
* 0:05.0 P2P : bit 5 of nbmiscind 0x0c : 0 - enable, default + 32 * 2
* 0:06.0 P2P : bit 6 of nbmiscind 0x0c : 0 - enable, default + 32 * 2
* 0:07.0 P2P : bit 7 of nbmiscind 0x0c : 0 - enable, default + 32 * 2
* 0:08.0 NB2SB : bit 6 of nbmiscind 0x00 : 0 - disable, default + 32 * 1
* case 0 will be called twice, one is by cpu in hypertransport.c line458,
* the other is by rs690.
***********************************************/
void rs690_enable(device_t dev)
{
device_t nb_dev = 0, sb_dev = 0;
int dev_ind;
printk(BIOS_INFO, "rs690_enable: dev=%p, VID_DID=0x%x\n", dev, get_vid_did(dev));
nb_dev = dev_find_slot(0, PCI_DEVFN(0, 0));
if (!nb_dev) {
die("rs690_enable: CAN NOT FIND RS690 DEVICE, HALT!\n");
/* NOT REACHED */
}
/* sb_dev (dev 8) is a bridge that links to southbridge. */
sb_dev = dev_find_slot(0, PCI_DEVFN(8, 0));
if (!sb_dev) {
die("rs690_enable: CAN NOT FIND SB bridge, HALT!\n");
/* NOT REACHED */
}
dev_ind = dev->path.pci.devfn >> 3;
switch (dev_ind) {
case 0: /* bus0, dev0, fun0; */
printk(BIOS_INFO, "Bus-0, Dev-0, Fun-0.\n");
enable_pcie_bar3(nb_dev); /* PCIEMiscInit */
config_gpp_core(nb_dev, sb_dev);
rs690_gpp_sb_init(nb_dev, sb_dev, 8);
/* set SB payload size: 64byte */
set_pcie_enable_bits(nb_dev, 0x10 | PCIE_CORE_INDEX_GPPSB, 3 << 11, 2 << 11);
/* Bus0Dev0Fun1Clock control init, we have to do it here, for dev0 Fun1 doesn't have a vendor or device ID */
rs690_config_misc_clk(nb_dev);
break;
case 1: /* bus0, dev1 */
printk(BIOS_INFO, "Bus-0, Dev-1, Fun-0.\n");
break;
case 2: /* bus0, dev2,3, two GFX */
case 3:
printk(BIOS_INFO, "Bus-0, Dev-2,3, Fun-0. enable=%d\n", dev->enabled);
set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << dev_ind,
(dev->enabled ? 0 : 1) << dev_ind);
if (dev->enabled)
rs690_gfx_init(nb_dev, dev, dev_ind);
break;
case 4: /* bus0, dev4-7, four GPP */
case 5:
case 6:
case 7:
printk(BIOS_INFO, "Bus-0, Dev-4,5,6,7, Fun-0. enable=%d\n",
dev->enabled);
set_nbmisc_enable_bits(nb_dev, 0x0c, 1 << dev_ind,
(dev->enabled ? 0 : 1) << dev_ind);
if (dev->enabled)
rs690_gpp_sb_init(nb_dev, dev, dev_ind);
break;
case 8: /* bus0, dev8, SB */
printk(BIOS_INFO, "Bus-0, Dev-8, Fun-0. enable=%d\n", dev->enabled);
set_nbmisc_enable_bits(nb_dev, 0x00, 1 << 6,
(dev->enabled ? 1 : 0) << 6);
if (dev->enabled)
rs690_gpp_sb_init(nb_dev, dev, dev_ind);
disable_pcie_bar3(nb_dev);
break;
default:
printk(BIOS_DEBUG, "unknown dev: %s\n", dev_path(dev));
}
}