/*
- * Copyright 2007-2010 Freescale Semiconductor, Inc.
+ * Copyright 2007-2012 Freescale Semiconductor, Inc.
*
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/fsl_pci.h>
-/* Freescale-specific PCI config registers */
-#define FSL_PCI_PBFR 0x44
-#define FSL_PCIE_CAP_ID 0x4c
-#define FSL_PCIE_CFG_RDY 0x4b0
-#define FSL_PROG_IF_AGENT 0x1
-
-void pciauto_prescan_setup_bridge(struct pci_controller *hose,
- pci_dev_t dev, int sub_bus);
-void pciauto_postscan_setup_bridge(struct pci_controller *hose,
- pci_dev_t dev, int sub_bus);
-void pciauto_config_init(struct pci_controller *hose);
-
#ifndef CONFIG_SYS_PCI_MEMORY_BUS
#define CONFIG_SYS_PCI_MEMORY_BUS 0
#endif
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 = &pci->pit[2]; /* ranges from: 3 to 1 */
+ volatile pit_t *pi;
u64 out_hi = 0, out_lo = -1ULL;
u32 pcicsrbar, pcicsrbar_sz;
pci_setup_indirect(hose, cfg_addr, cfg_data);
+ 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;
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 */
+ char *s = getenv("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 %08x\n", r,
+ debug("PCI reg:%d %016llx:%016llx %016llx %08lx\n", r,
(u64)hose->regions[r].phys_start,
- hose->regions[r].bus_start,
- hose->regions[r].size,
+ (u64)hose->regions[r].bus_start,
+ (u64)hose->regions[r].size,
hose->regions[r].flags);
pci_register_hose(hose);
hose->current_busno = hose->first_busno;
out_be32(&pci->pedr, 0xffffffff); /* Clear any errors */
- out_be32(&pci->peer, ~0x20140); /* Enable All Error Interupts except
+ 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);
+ 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);
+ 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;
+ } 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;
setbits_be32(&pci->pdb_stat, 0x08000000);
(void) in_be32(&pci->pdb_stat);
udelay(100);
- debug(" Asserting PCIe reset @%x = %x\n",
+ debug(" Asserting PCIe reset @%p = %x\n",
&pci->pdb_stat, in_be32(&pci->pdb_stat));
/* clear PCIe reset */
clrbits_be32(&pci->pdb_stat, 0x08000000);
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 */
printf("no link, regs @ 0x%lx\n", pci_info->regs);
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);
}
#ifndef CONFIG_PCI_NOSCAN
- pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &temp8);
-
- /* Programming Interface (PCI_CLASS_PROG)
- * 0 == pci host or pcie root-complex,
- * 1 == pci agent or pcie end-point
- */
- if (!temp8) {
+ 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);
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)
{
- u8 prog_if;
+ 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, PCI_CLASS_PROG, &prog_if);
+ 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;
- return (prog_if == FSL_PROG_IF_AGENT);
+ 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,
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;
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 = getenv("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
}
- 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);
- u8 agent;
+ int pcie_cap_pos;
u8 pcie_cap;
u16 pbfr;
- pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &agent);
- if (!agent)
+ 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) {
/* PCIe - set CFG_READY bit of Configuration Ready Register */
pci_hose_write_config_byte(hose, dev, FSL_PCIE_CFG_RDY, 0x1);
}
#if defined(CONFIG_PCIE1) || defined(CONFIG_PCIE2) || \
- defined(CONFIG_PCIE3) || defined(CONFIG_PCIE4)
+ defined(CONFIG_PCIE3) || defined(CONFIG_PCIE4)
int fsl_configure_pcie(struct fsl_pci_info *info,
struct pci_controller *hose,
const char *connected, int 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
{
struct fsl_pci_info pci_info;
ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC8xxx_GUTS_ADDR;
- u32 devdisr = in_be32(&gur->devdisr);
+ 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(&gur->devdisr, _DEVDISR_PCIE1); /* disable */
+ 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(&gur->devdisr, _DEVDISR_PCIE2); /* disable */
+ 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(&gur->devdisr, _DEVDISR_PCIE3); /* disable */
+ 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(&gur->devdisr, _DEVDISR_PCIE4); /* disable */
+ setbits_be32(addr, _DEVDISR_PCIE4); /* disable */
#endif
return busno;
projects / karo-tx-uboot.git / blobdiff