u64 size)
{
u32 sz = (__ilog2_u64(size) - 1);
- u32 flag = PIWAR_EN | PIWAR_LOCAL |
- PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP;
+#ifdef CONFIG_SYS_FSL_ERRATUM_A005434
+ u32 flag = 0;
+#else
+ u32 flag = PIWAR_LOCAL;
+#endif
+
+ flag |= PIWAR_EN | PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP;
out_be32(&pi->pitar, r->phys_start >> 12);
out_be32(&pi->piwbar, r->bus_start >> 12);
int enabled, r, inbound = 0;
u16 ltssm;
u8 temp8, pcie_cap;
+ int pcie_cap_pos;
+ int pci_dcr;
+ int pci_dsr;
+ int pci_lsr;
+
+#if defined(CONFIG_FSL_PCIE_DISABLE_ASPM)
+ int pci_lcr;
+#endif
+
volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *)cfg_addr;
struct pci_region *reg = hose->regions + hose->region_count;
pci_dev_t dev = PCI_BDF(hose->first_busno, 0, 0);
hose->region_count++;
/* see if we are a PCIe or PCI controller */
- pci_hose_read_config_byte(hose, dev, FSL_PCIE_CAP_ID, &pcie_cap);
+ pcie_cap_pos = pci_hose_find_capability(hose, dev, PCI_CAP_ID_EXP);
+ pci_dcr = pcie_cap_pos + 0x08;
+ pci_dsr = pcie_cap_pos + 0x0a;
+ pci_lsr = pcie_cap_pos + 0x12;
+
+ pci_hose_read_config_byte(hose, dev, pcie_cap_pos, &pcie_cap);
#ifdef CONFIG_SRIO_PCIE_BOOT_MASTER
/* boot from PCIE --master */
* - Master PERR (pci)
* - ICCA (PCIe)
*/
- pci_hose_read_config_dword(hose, dev, PCI_DCR, &temp32);
+ pci_hose_read_config_dword(hose, dev, pci_dcr, &temp32);
temp32 |= 0xf000e; /* set URR, FER, NFER (but not CER) */
- pci_hose_write_config_dword(hose, dev, PCI_DCR, temp32);
+ pci_hose_write_config_dword(hose, dev, pci_dcr, temp32);
#if defined(CONFIG_FSL_PCIE_DISABLE_ASPM)
+ pci_lcr = pcie_cap_pos + 0x10;
temp32 = 0;
- pci_hose_read_config_dword(hose, dev, PCI_LCR, &temp32);
+ pci_hose_read_config_dword(hose, dev, pci_lcr, &temp32);
temp32 &= ~0x03; /* Disable ASPM */
- pci_hose_write_config_dword(hose, dev, PCI_LCR, temp32);
+ pci_hose_write_config_dword(hose, dev, pci_lcr, temp32);
udelay(1);
#endif
if (pcie_cap == PCI_CAP_ID_EXP) {
ltssm = (in_be32(&pci->pex_csr0)
& PEX_CSR0_LTSSM_MASK) >> PEX_CSR0_LTSSM_SHIFT;
enabled = (ltssm == 0x11) ? 1 : 0;
+#ifdef CONFIG_FSL_PCIE_RESET
+ int i;
+ /* assert PCIe reset */
+ setbits_be32(&pci->pdb_stat, 0x08000000);
+ (void) in_be32(&pci->pdb_stat);
+ udelay(1000);
+ /* clear PCIe reset */
+ clrbits_be32(&pci->pdb_stat, 0x08000000);
+ asm("sync;isync");
+ for (i = 0; i < 100 && ltssm < PCI_LTSSM_L0; i++) {
+ pci_hose_read_config_word(hose, dev, PCI_LTSSM,
+ <ssm);
+ udelay(1000);
+ }
+#endif
} else {
/* pci_hose_read_config_word(hose, dev, PCI_LTSSM, <ssm); */
/* enabled = ltssm >= PCI_LTSSM_L0; */
}
#endif
if (!enabled) {
- /* Let the user know there's no PCIe link */
- printf("no link, regs @ 0x%lx\n", pci_info->regs);
+ /* Let the user know there's no PCIe link for root
+ * complex. for endpoint, the link may not setup, so
+ * print undetermined.
+ */
+ if (fsl_is_pci_agent(hose))
+ printf("undetermined, regs @ 0x%lx\n", pci_info->regs);
+ else
+ printf("no link, regs @ 0x%lx\n", pci_info->regs);
hose->last_busno = hose->first_busno;
return;
}
out_be32(&pci->pme_msg_int_en, 0xffffffff);
/* Print the negotiated PCIe link width */
- pci_hose_read_config_word(hose, dev, PCI_LSR, &temp16);
- printf("x%d, regs @ 0x%lx\n", (temp16 & 0x3f0 ) >> 4,
- pci_info->regs);
+ pci_hose_read_config_word(hose, dev, pci_lsr, &temp16);
+ printf("x%d gen%d, regs @ 0x%lx\n", (temp16 & 0x3f0) >> 4,
+ (temp16 & 0xf), pci_info->regs);
hose->current_busno++; /* Start scan with secondary */
pciauto_prescan_setup_bridge(hose, dev, hose->current_busno);
out_be32(&pci->pme_msg_det, 0xffffffff);
out_be32(&pci->pedr, 0xffffffff);
- pci_hose_read_config_word (hose, dev, PCI_DSR, &temp16);
+ pci_hose_read_config_word(hose, dev, pci_dsr, &temp16);
if (temp16) {
- pci_hose_write_config_word(hose, dev, PCI_DSR, 0xffff);
+ pci_hose_write_config_word(hose, dev, pci_dsr, 0xffff);
}
pci_hose_read_config_word (hose, dev, PCI_SEC_STATUS, &temp16);
int fsl_is_pci_agent(struct pci_controller *hose)
{
+ int pcie_cap_pos;
u8 pcie_cap;
pci_dev_t dev = PCI_BDF(hose->first_busno, 0, 0);
- pci_hose_read_config_byte(hose, dev, FSL_PCIE_CAP_ID, &pcie_cap);
+ pcie_cap_pos = pci_hose_find_capability(hose, dev, PCI_CAP_ID_EXP);
+ pci_hose_read_config_byte(hose, dev, pcie_cap_pos, &pcie_cap);
if (pcie_cap == PCI_CAP_ID_EXP) {
u8 header_type;
volatile ccsr_fsl_pci_t *pci;
struct pci_region *r;
pci_dev_t dev = PCI_BDF(busno,0,0);
+ int pcie_cap_pos;
u8 pcie_cap;
pci = (ccsr_fsl_pci_t *) pci_info->regs;
#endif
}
- pci_hose_read_config_byte(hose, dev, FSL_PCIE_CAP_ID, &pcie_cap);
+ pcie_cap_pos = pci_hose_find_capability(hose, dev, PCI_CAP_ID_EXP);
+ pci_hose_read_config_byte(hose, dev, pcie_cap_pos, &pcie_cap);
printf("PCI%s%x: Bus %02x - %02x\n", pcie_cap == PCI_CAP_ID_EXP ?
"e" : "", pci_info->pci_num,
hose->first_busno, hose->last_busno);
-
return(hose->last_busno + 1);
}
void fsl_pci_config_unlock(struct pci_controller *hose)
{
pci_dev_t dev = PCI_BDF(hose->first_busno,0,0);
+ int pcie_cap_pos;
u8 pcie_cap;
u16 pbfr;
if (!fsl_is_pci_agent(hose))
return;
- pci_hose_read_config_byte(hose, dev, FSL_PCIE_CAP_ID, &pcie_cap);
+ pcie_cap_pos = pci_hose_find_capability(hose, dev, PCI_CAP_ID_EXP);
+ pci_hose_read_config_byte(hose, dev, pcie_cap_pos, &pcie_cap);
if (pcie_cap != 0x0) {
+ ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *)hose->cfg_addr;
+ u32 block_rev = in_be32(&pci->block_rev1);
/* PCIe - set CFG_READY bit of Configuration Ready Register */
- pci_hose_write_config_byte(hose, dev, FSL_PCIE_CFG_RDY, 0x1);
+ if (block_rev >= PEX_IP_BLK_REV_3_0)
+ setbits_be32(&pci->config, FSL_PCIE_V3_CFG_RDY);
+ else
+ pci_hose_write_config_byte(hose, dev,
+ FSL_PCIE_CFG_RDY, 0x1);
} else {
/* PCI - clear ACL bit of PBFR */
pci_hose_read_config_word(hose, dev, FSL_PCI_PBFR, &pbfr);
projects / karo-tx-uboot.git / blobdiff