X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fpci%2Ffsl_pci_init.c;h=17ca961abf93f74e38a06c25bf1669164ba78bc0;hb=aaf5e825606a70ddc8fca8e366d8c16a6fd3cc7c;hp=dc34bd666938f74079008bdd41d0ee202a74fb19;hpb=b03a466d6ceb9dbfd1a1638f355e9c8b4833259f;p=u-boot

diff --git a/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c
index dc34bd6669..17ca961abf 100644
--- a/drivers/pci/fsl_pci_init.c
+++ b/drivers/pci/fsl_pci_init.c
@@ -1,20 +1,7 @@
 /*
- * 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>
@@ -47,12 +34,6 @@ DECLARE_GLOBAL_DATA_PTR;
 #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
@@ -217,12 +198,106 @@ static int fsl_pci_setup_inbound_windows(struct pci_controller *hose,
 	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;
@@ -232,13 +307,20 @@ void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info)
 
 	/* 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;
@@ -293,14 +375,31 @@ void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info)
 	/* see if we are a PCIe or PCI controller */
 	pci_hose_read_config_byte(hose, dev, FSL_PCIE_CAP_ID, &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);
@@ -308,7 +407,7 @@ void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info)
 	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)
@@ -336,7 +435,7 @@ void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info)
 			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);
@@ -358,6 +457,28 @@ void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info)
 		}
 #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, &ltssm);
+					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);
@@ -391,13 +512,7 @@ void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info)
 	}
 
 #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);
@@ -435,12 +550,22 @@ void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info)
 
 int fsl_is_pci_agent(struct pci_controller *hose)
 {
-	u8 prog_if;
+	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);
+	pci_hose_read_config_byte(hose, dev, FSL_PCIE_CAP_ID, &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);
+		return (prog_if == FSL_PROG_IF_AGENT);
+	}
 }
 
 int fsl_pci_init_port(struct fsl_pci_info *pci_info,
@@ -486,6 +611,16 @@ int fsl_pci_init_port(struct fsl_pci_info *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 = 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);
@@ -500,12 +635,10 @@ int fsl_pci_init_port(struct fsl_pci_info *pci_info,
 void fsl_pci_config_unlock(struct pci_controller *hose)
 {
 	pci_dev_t dev = PCI_BDF(hose->first_busno,0,0);
-	u8 agent;
 	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);
@@ -542,10 +675,17 @@ int fsl_configure_pcie(struct fsl_pci_info *info,
 }
 
 #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
@@ -625,34 +765,42 @@ 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 = 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;