+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright 2007-2012 Freescale Semiconductor, Inc.
- */
-
-#include <common.h>
-#include <env.h>
-#include <init.h>
-#include <log.h>
-#include <malloc.h>
-#include <asm/fsl_serdes.h>
-#include <asm/global_data.h>
-#include <linux/delay.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/*
- * PCI/PCIE Controller initialization for mpc85xx/mpc86xx soc's
- *
- * Initialize controller and call the common driver/pci pci_hose_scan to
- * scan for bridges and devices.
- *
- * Hose fields which need to be pre-initialized by board specific code:
- * regions[]
- * first_busno
- *
- * Fields updated:
- * last_busno
- */
-
-#include <pci.h>
-#include <asm/io.h>
-#include <asm/fsl_pci.h>
-
-#define MAX_PCI_REGIONS 7
-
-#ifndef CONFIG_SYS_PCI_MEMORY_BUS
-#define CONFIG_SYS_PCI_MEMORY_BUS 0
-#endif
-
-#ifndef CONFIG_SYS_PCI_MEMORY_PHYS
-#define CONFIG_SYS_PCI_MEMORY_PHYS 0
-#endif
-
-#if defined(CONFIG_SYS_PCI_64BIT) && !defined(CONFIG_SYS_PCI64_MEMORY_BUS)
-#define CONFIG_SYS_PCI64_MEMORY_BUS (64ull*1024*1024*1024)
-#endif
-
-/* Setup one inbound ATMU window.
- *
- * We let the caller decide what the window size should be
- */
-static void set_inbound_window(volatile pit_t *pi,
- struct pci_region *r,
- u64 size)
-{
- u32 sz = (__ilog2_u64(size) - 1);
-#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);
-#ifdef CONFIG_SYS_PCI_64BIT
- out_be32(&pi->piwbear, r->bus_start >> 44);
-#else
- out_be32(&pi->piwbear, 0);
-#endif
- if (r->flags & PCI_REGION_PREFETCH)
- flag |= PIWAR_PF;
- out_be32(&pi->piwar, flag | sz);
-}
-
-int fsl_setup_hose(struct pci_controller *hose, unsigned long addr)
-{
- volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) addr;
-
- /* Reset hose to make sure its in a clean state */
- memset(hose, 0, sizeof(struct pci_controller));
-
- hose->regions = (struct pci_region *)
- calloc(1, MAX_PCI_REGIONS * sizeof(struct pci_region));
-
- pci_setup_indirect(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
-
- return fsl_is_pci_agent(hose);
-}
-
-static int fsl_pci_setup_inbound_windows(struct pci_controller *hose,
- u64 out_lo, u8 pcie_cap,
- volatile pit_t *pi)
-{
- struct pci_region *r = hose->regions + hose->region_count;
- u64 sz = min((u64)gd->ram_size, (1ull << 32));
-
- phys_addr_t phys_start = CONFIG_SYS_PCI_MEMORY_PHYS;
- pci_addr_t bus_start = CONFIG_SYS_PCI_MEMORY_BUS;
- pci_size_t pci_sz;
-
- /* we have no space available for inbound memory mapping */
- if (bus_start > out_lo) {
- printf ("no space for inbound mapping of memory\n");
- return 0;
- }
-
- /* limit size */
- if ((bus_start + sz) > out_lo) {
- sz = out_lo - bus_start;
- debug ("limiting size to %llx\n", sz);
- }
-
- pci_sz = 1ull << __ilog2_u64(sz);
- /*
- * we can overlap inbound/outbound windows on PCI-E since RX & TX
- * links a separate
- */
- if ((pcie_cap == PCI_CAP_ID_EXP) && (pci_sz < sz)) {
- debug ("R0 bus_start: %llx phys_start: %llx size: %llx\n",
- (u64)bus_start, (u64)phys_start, (u64)sz);
- pci_set_region(r, bus_start, phys_start, sz,
- PCI_REGION_MEM | PCI_REGION_SYS_MEMORY |
- PCI_REGION_PREFETCH);
-
- /* if we aren't an exact power of two match, pci_sz is smaller
- * round it up to the next power of two. We report the actual
- * size to pci region tracking.
- */
- if (pci_sz != sz)
- sz = 2ull << __ilog2_u64(sz);
-
- set_inbound_window(pi--, r++, sz);
- sz = 0; /* make sure we dont set the R2 window */
- } else {
- debug ("R0 bus_start: %llx phys_start: %llx size: %llx\n",
- (u64)bus_start, (u64)phys_start, (u64)pci_sz);
- pci_set_region(r, bus_start, phys_start, pci_sz,
- PCI_REGION_MEM | PCI_REGION_SYS_MEMORY |
- PCI_REGION_PREFETCH);
- set_inbound_window(pi--, r++, pci_sz);
-
- sz -= pci_sz;
- bus_start += pci_sz;
- phys_start += pci_sz;
-
- pci_sz = 1ull << __ilog2_u64(sz);
- if (sz) {
- debug ("R1 bus_start: %llx phys_start: %llx size: %llx\n",
- (u64)bus_start, (u64)phys_start, (u64)pci_sz);
- pci_set_region(r, bus_start, phys_start, pci_sz,
- PCI_REGION_MEM | PCI_REGION_SYS_MEMORY |
- PCI_REGION_PREFETCH);
- set_inbound_window(pi--, r++, pci_sz);
- sz -= pci_sz;
- bus_start += pci_sz;
- phys_start += pci_sz;
- }
- }
-
-#if defined(CONFIG_PHYS_64BIT) && defined(CONFIG_SYS_PCI_64BIT)
- /*
- * On 64-bit capable systems, set up a mapping for all of DRAM
- * in high pci address space.
- */
- pci_sz = 1ull << __ilog2_u64(gd->ram_size);
- /* round up to the next largest power of two */
- if (gd->ram_size > pci_sz)
- pci_sz = 1ull << (__ilog2_u64(gd->ram_size) + 1);
- debug ("R64 bus_start: %llx phys_start: %llx size: %llx\n",
- (u64)CONFIG_SYS_PCI64_MEMORY_BUS,
- (u64)CONFIG_SYS_PCI_MEMORY_PHYS,
- (u64)pci_sz);
- pci_set_region(r,
- CONFIG_SYS_PCI64_MEMORY_BUS,
- CONFIG_SYS_PCI_MEMORY_PHYS,
- pci_sz,
- PCI_REGION_MEM | PCI_REGION_SYS_MEMORY |
- PCI_REGION_PREFETCH);
- set_inbound_window(pi--, r++, pci_sz);
-#else
- pci_sz = 1ull << __ilog2_u64(sz);
- if (sz) {
- debug ("R2 bus_start: %llx phys_start: %llx size: %llx\n",
- (u64)bus_start, (u64)phys_start, (u64)pci_sz);
- pci_set_region(r, bus_start, phys_start, pci_sz,
- PCI_REGION_MEM | PCI_REGION_SYS_MEMORY |
- PCI_REGION_PREFETCH);
- sz -= pci_sz;
- bus_start += pci_sz;
- phys_start += pci_sz;
- set_inbound_window(pi--, r++, pci_sz);
- }
-#endif
-
-#ifdef CONFIG_PHYS_64BIT
- if (sz && (((u64)gd->ram_size) < (1ull << 32)))
- printf("Was not able to map all of memory via "
- "inbound windows -- %lld remaining\n", sz);
-#endif
-
- hose->region_count = r - hose->regions;
-
- return 1;
-}
-
-#ifdef CONFIG_SRIO_PCIE_BOOT_MASTER
-static void fsl_pcie_boot_master(pit_t *pi)
-{
- /* configure inbound window for slave's u-boot image */
- debug("PCIEBOOT - MASTER: Inbound window for slave's image; "
- "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n",
- (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS,
- (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS1,
- CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE);
- struct pci_region r_inbound;
- u32 sz_inbound = __ilog2_u64(CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE)
- - 1;
- pci_set_region(&r_inbound,
- CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS1,
- CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS,
- sz_inbound,
- PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
-
- set_inbound_window(pi--, &r_inbound,
- CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE);
-
- /* configure inbound window for slave's u-boot image */
- debug("PCIEBOOT - MASTER: Inbound window for slave's image; "
- "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n",
- (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS,
- (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS2,
- CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE);
- pci_set_region(&r_inbound,
- CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS2,
- CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS,
- sz_inbound,
- PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
-
- set_inbound_window(pi--, &r_inbound,
- CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE);
-
- /* configure inbound window for slave's ucode and ENV */
- debug("PCIEBOOT - MASTER: Inbound window for slave's "
- "ucode and ENV; "
- "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n",
- (u64)CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_PHYS,
- (u64)CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_BUS,
- CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE);
- sz_inbound = __ilog2_u64(CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE)
- - 1;
- pci_set_region(&r_inbound,
- CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_BUS,
- CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_PHYS,
- sz_inbound,
- PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
-
- set_inbound_window(pi--, &r_inbound,
- CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE);
-}
-
-static void fsl_pcie_boot_master_release_slave(int port)
-{
- unsigned long release_addr;
-
- /* now release slave's core 0 */
- switch (port) {
- case 1:
- release_addr = CONFIG_SYS_PCIE1_MEM_VIRT
- + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET;
- break;
-#ifdef CONFIG_SYS_PCIE2_MEM_VIRT
- case 2:
- release_addr = CONFIG_SYS_PCIE2_MEM_VIRT
- + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET;
- break;
-#endif
-#ifdef CONFIG_SYS_PCIE3_MEM_VIRT
- case 3:
- release_addr = CONFIG_SYS_PCIE3_MEM_VIRT
- + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET;
- break;
-#endif
- default:
- release_addr = 0;
- break;
- }
- if (release_addr != 0) {
- out_be32((void *)release_addr,
- CONFIG_SRIO_PCIE_BOOT_RELEASE_MASK);
- debug("PCIEBOOT - MASTER: "
- "Release slave successfully! Now the slave should start up!\n");
- } else {
- debug("PCIEBOOT - MASTER: "
- "Release slave failed!\n");
- }
-}
-#endif
-
-void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info)
-{
- u32 cfg_addr = (u32)&((ccsr_fsl_pci_t *)pci_info->regs)->cfg_addr;
- u32 cfg_data = (u32)&((ccsr_fsl_pci_t *)pci_info->regs)->cfg_data;
- u16 temp16;
- u32 temp32;
- u32 block_rev;
- 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);
-
- /* Initialize ATMU registers based on hose regions and flags */
- volatile pot_t *po = &pci->pot[1]; /* skip 0 */
- volatile pit_t *pi;
-
- u64 out_hi = 0, out_lo = -1ULL;
- u32 pcicsrbar, pcicsrbar_sz;
-
- pci_setup_indirect(hose, cfg_addr, cfg_data);
-
-#ifdef PEX_CCB_DIV
- /* Configure the PCIE controller core clock ratio */
- pci_hose_write_config_dword(hose, dev, 0x440,
- ((gd->bus_clk / 1000000) *
- (16 / PEX_CCB_DIV)) / 333);
-#endif
- block_rev = in_be32(&pci->block_rev1);
- if (PEX_IP_BLK_REV_2_2 <= block_rev) {
- pi = &pci->pit[2]; /* 0xDC0 */
- } else {
- pi = &pci->pit[3]; /* 0xDE0 */
- }
-
- /* Handle setup of outbound windows first */
- for (r = 0; r < hose->region_count; r++) {
- unsigned long flags = hose->regions[r].flags;
- u32 sz = (__ilog2_u64((u64)hose->regions[r].size) - 1);
-
- flags &= PCI_REGION_SYS_MEMORY|PCI_REGION_TYPE;
- if (flags != PCI_REGION_SYS_MEMORY) {
- u64 start = hose->regions[r].bus_start;
- u64 end = start + hose->regions[r].size;
-
- out_be32(&po->powbar, hose->regions[r].phys_start >> 12);
- out_be32(&po->potar, start >> 12);
-#ifdef CONFIG_SYS_PCI_64BIT
- out_be32(&po->potear, start >> 44);
-#else
- out_be32(&po->potear, 0);
-#endif
- if (hose->regions[r].flags & PCI_REGION_IO) {
- out_be32(&po->powar, POWAR_EN | sz |
- POWAR_IO_READ | POWAR_IO_WRITE);
- } else {
- out_be32(&po->powar, POWAR_EN | sz |
- POWAR_MEM_READ | POWAR_MEM_WRITE);
- out_lo = min(start, out_lo);
- out_hi = max(end, out_hi);
- }
- po++;
- }
- }
- debug("Outbound memory range: %llx:%llx\n", out_lo, out_hi);
-
- /* setup PCSRBAR/PEXCSRBAR */
- pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, 0xffffffff);
- pci_hose_read_config_dword (hose, dev, PCI_BASE_ADDRESS_0, &pcicsrbar_sz);
- pcicsrbar_sz = ~pcicsrbar_sz + 1;
-
- if (out_hi < (0x100000000ull - pcicsrbar_sz) ||
- (out_lo > 0x100000000ull))
- pcicsrbar = 0x100000000ull - pcicsrbar_sz;
- else
- pcicsrbar = (out_lo - pcicsrbar_sz) & -pcicsrbar_sz;
- pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, pcicsrbar);
-
- out_lo = min(out_lo, (u64)pcicsrbar);
-
- debug("PCICSRBAR @ 0x%x\n", pcicsrbar);
-
- pci_set_region(reg++, pcicsrbar, CONFIG_SYS_CCSRBAR_PHYS,
- pcicsrbar_sz, PCI_REGION_SYS_MEMORY);
- hose->region_count++;
-
- /* see if we are a PCIe or PCI controller */
- 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 */
- char *s = env_get("bootmaster");
- char pcie[6];
- sprintf(pcie, "PCIE%d", pci_info->pci_num);
-
- if (s && (strcmp(s, pcie) == 0)) {
- debug("PCIEBOOT - MASTER: Master port [ %d ] for pcie boot.\n",
- pci_info->pci_num);
- fsl_pcie_boot_master((pit_t *)pi);
- } else {
- /* inbound */
- inbound = fsl_pci_setup_inbound_windows(hose,
- out_lo, pcie_cap, pi);
- }
-#else
- /* inbound */
- inbound = fsl_pci_setup_inbound_windows(hose, out_lo, pcie_cap, pi);
-#endif
-
- for (r = 0; r < hose->region_count; r++)
- debug("PCI reg:%d %016llx:%016llx %016llx %08lx\n", r,
- (u64)hose->regions[r].phys_start,
- (u64)hose->regions[r].bus_start,
- (u64)hose->regions[r].size,
- hose->regions[r].flags);
-
- pci_register_hose(hose);
- pciauto_config_init(hose); /* grab pci_{mem,prefetch,io} */
- hose->current_busno = hose->first_busno;
-
- out_be32(&pci->pedr, 0xffffffff); /* Clear any errors */
- out_be32(&pci->peer, ~0x20140); /* Enable All Error Interrupts except
- * - Master abort (pci)
- * - Master PERR (pci)
- * - ICCA (PCIe)
- */
- 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);
-
-#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);
- temp32 &= ~0x03; /* Disable ASPM */
- pci_hose_write_config_dword(hose, dev, pci_lcr, temp32);
- udelay(1);
-#endif
- if (pcie_cap == PCI_CAP_ID_EXP) {
- if (block_rev >= PEX_IP_BLK_REV_3_0) {
-#define PEX_CSR0_LTSSM_MASK 0xFC
-#define PEX_CSR0_LTSSM_SHIFT 2
- 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; */
- pci_hose_read_config_word(hose, dev, PCI_LTSSM, <ssm);
- enabled = ltssm >= PCI_LTSSM_L0;
-
-#ifdef CONFIG_FSL_PCIE_RESET
- if (ltssm == 1) {
- int i;
- debug("....PCIe link error. " "LTSSM=0x%02x.", ltssm);
- /* assert PCIe reset */
- setbits_be32(&pci->pdb_stat, 0x08000000);
- (void) in_be32(&pci->pdb_stat);
- udelay(100);
- debug(" Asserting PCIe reset @%p = %x\n",
- &pci->pdb_stat, in_be32(&pci->pdb_stat));
- /* 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);
- debug("....PCIe link error. "
- "LTSSM=0x%02x.\n", ltssm);
- }
- enabled = ltssm >= PCI_LTSSM_L0;
-
- /* we need to re-write the bar0 since a reset will
- * clear it
- */
- pci_hose_write_config_dword(hose, dev,
- PCI_BASE_ADDRESS_0, pcicsrbar);
- }
-#endif
- }
-
-#ifdef CONFIG_SYS_P4080_ERRATUM_PCIE_A003
- if (enabled == 0) {
- serdes_corenet_t *srds_regs = (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR;
- temp32 = in_be32(&srds_regs->srdspccr0);
-
- if ((temp32 >> 28) == 3) {
- int i;
-
- out_be32(&srds_regs->srdspccr0, 2 << 28);
- setbits_be32(&pci->pdb_stat, 0x08000000);
- in_be32(&pci->pdb_stat);
- udelay(100);
- 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);
- }
- enabled = ltssm >= PCI_LTSSM_L0;
- }
- }
-#endif
- if (!enabled) {
- /* 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_det, 0xffffffff);
- 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 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);
- }
-
-#ifdef CONFIG_SYS_FSL_ERRATUM_A007815
- /* The Read-Only Write Enable bit defaults to 1 instead of 0.
- * Set to 0 to protect the read-only registers.
- */
- clrbits_be32(&pci->dbi_ro_wr_en, 0x01);
-#endif
-
- /* Use generic setup_device to initialize standard pci regs,
- * but do not allocate any windows since any BAR found (such
- * as PCSRBAR) is not in this cpu's memory space.
- */
- pciauto_setup_device(hose, dev, 0, hose->pci_mem,
- hose->pci_prefetch, hose->pci_io);
-
- if (inbound) {
- pci_hose_read_config_word(hose, dev, PCI_COMMAND, &temp16);
- pci_hose_write_config_word(hose, dev, PCI_COMMAND,
- temp16 | PCI_COMMAND_MEMORY);
- }
-
-#ifndef CONFIG_PCI_NOSCAN
- if (!fsl_is_pci_agent(hose)) {
- debug(" Scanning PCI bus %02x\n",
- hose->current_busno);
- hose->last_busno = pci_hose_scan_bus(hose, hose->current_busno);
- } else {
- debug(" Not scanning PCI bus %02x. PI=%x\n",
- hose->current_busno, temp8);
- hose->last_busno = hose->current_busno;
- }
-
- /* if we are PCIe - update limit regs and subordinate busno
- * for the virtual P2P bridge
- */
- if (pcie_cap == PCI_CAP_ID_EXP) {
- pciauto_postscan_setup_bridge(hose, dev, hose->last_busno);
- }
-#else
- hose->last_busno = hose->current_busno;
-#endif
-
- /* Clear all error indications */
- if (pcie_cap == PCI_CAP_ID_EXP)
- out_be32(&pci->pme_msg_det, 0xffffffff);
- out_be32(&pci->pedr, 0xffffffff);
-
- pci_hose_read_config_word(hose, dev, pci_dsr, &temp16);
- if (temp16) {
- pci_hose_write_config_word(hose, dev, pci_dsr, 0xffff);
- }
-
- pci_hose_read_config_word (hose, dev, PCI_SEC_STATUS, &temp16);
- if (temp16) {
- pci_hose_write_config_word(hose, dev, PCI_SEC_STATUS, 0xffff);
- }
-}
-
-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);
-
- 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;
-
- pci_hose_read_config_byte(hose, dev, PCI_HEADER_TYPE,
- &header_type);
- return (header_type & 0x7f) == PCI_HEADER_TYPE_NORMAL;
- } else {
- u8 prog_if;
-
- pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &prog_if);
- /* Programming Interface (PCI_CLASS_PROG)
- * 0 == pci host or pcie root-complex,
- * 1 == pci agent or pcie end-point
- */
- return (prog_if == FSL_PROG_IF_AGENT);
- }
-}
-
-int fsl_pci_init_port(struct fsl_pci_info *pci_info,
- struct pci_controller *hose, int busno)
-{
- 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;
-
- /* on non-PCIe controllers we don't have pme_msg_det so this code
- * should do nothing since the read will return 0
- */
- if (in_be32(&pci->pme_msg_det)) {
- out_be32(&pci->pme_msg_det, 0xffffffff);
- debug (" with errors. Clearing. Now 0x%08x",
- pci->pme_msg_det);
- }
-
- r = hose->regions + hose->region_count;
-
- /* outbound memory */
- pci_set_region(r++,
- pci_info->mem_bus,
- pci_info->mem_phys,
- pci_info->mem_size,
- PCI_REGION_MEM);
-
- /* outbound io */
- pci_set_region(r++,
- pci_info->io_bus,
- pci_info->io_phys,
- pci_info->io_size,
- PCI_REGION_IO);
-
- hose->region_count = r - hose->regions;
- hose->first_busno = busno;
-
- fsl_pci_init(hose, pci_info);
-
- if (fsl_is_pci_agent(hose)) {
- fsl_pci_config_unlock(hose);
- hose->last_busno = hose->first_busno;
-#ifdef CONFIG_SRIO_PCIE_BOOT_MASTER
- } else {
- /* boot from PCIE --master releases slave's core 0 */
- char *s = env_get("bootmaster");
- char pcie[6];
- sprintf(pcie, "PCIE%d", pci_info->pci_num);
-
- if (s && (strcmp(s, pcie) == 0))
- fsl_pcie_boot_master_release_slave(pci_info->pci_num);
-#endif
- }
-
- 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);
-}
-
-/* Enable inbound PCI config cycles for agent/endpoint interface */
-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;
-
- 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 */
- 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);
- pbfr &= ~0x20;
- pci_hose_write_config_word(hose, dev, FSL_PCI_PBFR, pbfr);
- }
-}
-
-#if defined(CONFIG_PCIE1) || defined(CONFIG_PCIE2) || \
- defined(CONFIG_PCIE3) || defined(CONFIG_PCIE4)
-int fsl_configure_pcie(struct fsl_pci_info *info,
- struct pci_controller *hose,
- const char *connected, int busno)
-{
- int is_endpoint;
-
- set_next_law(info->mem_phys, law_size_bits(info->mem_size), info->law);
- set_next_law(info->io_phys, law_size_bits(info->io_size), info->law);
-
- is_endpoint = fsl_setup_hose(hose, info->regs);
- printf("PCIe%u: %s", info->pci_num,
- is_endpoint ? "Endpoint" : "Root Complex");
- if (connected)
- printf(" of %s", connected);
- puts(", ");
-
- return fsl_pci_init_port(info, hose, busno);
-}
-
-#if defined(CONFIG_FSL_CORENET)
-#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
- #define _DEVDISR_PCIE1 FSL_CORENET_DEVDISR3_PCIE1
- #define _DEVDISR_PCIE2 FSL_CORENET_DEVDISR3_PCIE2
- #define _DEVDISR_PCIE3 FSL_CORENET_DEVDISR3_PCIE3
- #define _DEVDISR_PCIE4 FSL_CORENET_DEVDISR3_PCIE4
-#else
- #define _DEVDISR_PCIE1 FSL_CORENET_DEVDISR_PCIE1
- #define _DEVDISR_PCIE2 FSL_CORENET_DEVDISR_PCIE2
- #define _DEVDISR_PCIE3 FSL_CORENET_DEVDISR_PCIE3
- #define _DEVDISR_PCIE4 FSL_CORENET_DEVDISR_PCIE4
-#endif
- #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR
-#elif defined(CONFIG_MPC85xx)
- #define _DEVDISR_PCIE1 MPC85xx_DEVDISR_PCIE
- #define _DEVDISR_PCIE2 MPC85xx_DEVDISR_PCIE2
- #define _DEVDISR_PCIE3 MPC85xx_DEVDISR_PCIE3
- #define _DEVDISR_PCIE4 0
- #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR
-#elif defined(CONFIG_MPC86xx)
- #define _DEVDISR_PCIE1 MPC86xx_DEVDISR_PCIE1
- #define _DEVDISR_PCIE2 MPC86xx_DEVDISR_PCIE2
- #define _DEVDISR_PCIE3 0
- #define _DEVDISR_PCIE4 0
- #define CONFIG_SYS_MPC8xxx_GUTS_ADDR \
- (&((immap_t *)CONFIG_SYS_IMMR)->im_gur)
-#else
-#error "No defines for DEVDISR_PCIE"
-#endif
-
-/* Implement a dummy function for those platforms w/o SERDES */
-static const char *__board_serdes_name(enum srds_prtcl device)
-{
- switch (device) {
-#ifdef CONFIG_SYS_PCIE1_NAME
- case PCIE1:
- return CONFIG_SYS_PCIE1_NAME;
-#endif
-#ifdef CONFIG_SYS_PCIE2_NAME
- case PCIE2:
- return CONFIG_SYS_PCIE2_NAME;
-#endif
-#ifdef CONFIG_SYS_PCIE3_NAME
- case PCIE3:
- return CONFIG_SYS_PCIE3_NAME;
-#endif
-#ifdef CONFIG_SYS_PCIE4_NAME
- case PCIE4:
- return CONFIG_SYS_PCIE4_NAME;
-#endif
- default:
- return NULL;
- }
-
- return NULL;
-}
-
-__attribute__((weak, alias("__board_serdes_name"))) const char *
-board_serdes_name(enum srds_prtcl device);
-
-static u32 devdisr_mask[] = {
- _DEVDISR_PCIE1,
- _DEVDISR_PCIE2,
- _DEVDISR_PCIE3,
- _DEVDISR_PCIE4,
-};
-
-int fsl_pcie_init_ctrl(int busno, u32 devdisr, enum srds_prtcl dev,
- struct fsl_pci_info *pci_info)
-{
- struct pci_controller *hose;
- int num = dev - PCIE1;
-
- hose = calloc(1, sizeof(struct pci_controller));
- if (!hose)
- return busno;
-
- if (is_serdes_configured(dev) && !(devdisr & devdisr_mask[num])) {
- busno = fsl_configure_pcie(pci_info, hose,
- board_serdes_name(dev), busno);
- } else {
- printf("PCIe%d: disabled\n", num + 1);
- }
-
- return busno;
-}
-
-int fsl_pcie_init_board(int busno)
-{
- struct fsl_pci_info pci_info;
- ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC8xxx_GUTS_ADDR;
- u32 devdisr;
- u32 *addr;
-
-#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
- addr = &gur->devdisr3;
-#else
- addr = &gur->devdisr;
-#endif
- devdisr = in_be32(addr);
-
-#ifdef CONFIG_PCIE1
- SET_STD_PCIE_INFO(pci_info, 1);
- busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE1, &pci_info);
-#else
- setbits_be32(addr, _DEVDISR_PCIE1); /* disable */
-#endif
-
-#ifdef CONFIG_PCIE2
- SET_STD_PCIE_INFO(pci_info, 2);
- busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE2, &pci_info);
-#else
- setbits_be32(addr, _DEVDISR_PCIE2); /* disable */
-#endif
-
-#ifdef CONFIG_PCIE3
- SET_STD_PCIE_INFO(pci_info, 3);
- busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE3, &pci_info);
-#else
- setbits_be32(addr, _DEVDISR_PCIE3); /* disable */
-#endif
-
-#ifdef CONFIG_PCIE4
- SET_STD_PCIE_INFO(pci_info, 4);
- busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE4, &pci_info);
-#else
- setbits_be32(addr, _DEVDISR_PCIE4); /* disable */
-#endif
-
- return busno;
-}
-#else
-int fsl_pcie_init_ctrl(int busno, u32 devdisr, enum srds_prtcl dev,
- struct fsl_pci_info *pci_info)
-{
- return busno;
-}
-
-int fsl_pcie_init_board(int busno)
-{
- return busno;
-}
-#endif
-
-#ifdef CONFIG_OF_BOARD_SETUP
-#include <linux/libfdt.h>
-#include <fdt_support.h>
-
-void ft_fsl_pci_setup(void *blob, const char *pci_compat,
- unsigned long ctrl_addr)
-{
- int off;
- u32 bus_range[2];
- phys_addr_t p_ctrl_addr = (phys_addr_t)ctrl_addr;
- struct pci_controller *hose;
-
- hose = find_hose_by_cfg_addr((void *)(ctrl_addr));
-
- /* convert ctrl_addr to true physical address */
- p_ctrl_addr = (phys_addr_t)ctrl_addr - CONFIG_SYS_CCSRBAR;
- p_ctrl_addr += CONFIG_SYS_CCSRBAR_PHYS;
-
- off = fdt_node_offset_by_compat_reg(blob, pci_compat, p_ctrl_addr);
-
- if (off < 0)
- return;
-
- /* We assume a cfg_addr not being set means we didn't setup the controller */
- if ((hose == NULL) || (hose->cfg_addr == NULL)) {
- fdt_del_node(blob, off);
- } else {
- bus_range[0] = 0;
- bus_range[1] = hose->last_busno - hose->first_busno;
- fdt_setprop(blob, off, "bus-range", &bus_range[0], 2*4);
- fdt_pci_dma_ranges(blob, off, hose);
- }
-}
-#endif
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