powerpc/85xx: Rework P2020DS pci_init_board to use common FSL PCIe code

Remove duplicated code in P2020DS board and utilize the common
fsl_pcie_init_board().  We also now dynamically setup the LAWs for PCI
controllers based on which PCIe controllers are enabled.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

board/freescale/p2020ds/law.c

@@ -1,5 +1,5 @@
 /*
- * Copyright 2008-2009 Freescale Semiconductor, Inc.
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
  *
  * (C) Copyright 2000
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
@@ -29,12 +29,6 @@
 
 struct law_entry law_table[] = {
 	SET_LAW(CONFIG_SYS_FLASH_BASE_PHYS, LAW_SIZE_256M, LAW_TRGT_IF_LBC),
-	SET_LAW(CONFIG_SYS_PCIE1_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCIE_1),
-	SET_LAW(CONFIG_SYS_PCIE1_IO_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_PCIE_1),
-	SET_LAW(CONFIG_SYS_PCIE2_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCIE_2),
-	SET_LAW(CONFIG_SYS_PCIE2_IO_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_PCIE_2),
-	SET_LAW(CONFIG_SYS_PCIE3_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCIE_3),
-	SET_LAW(CONFIG_SYS_PCIE3_IO_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_PCIE_3),
 	SET_LAW(PIXIS_BASE_PHYS, LAW_SIZE_4K, LAW_TRGT_IF_LBC),
 	SET_LAW(CONFIG_SYS_NAND_BASE_PHYS, LAW_SIZE_1M, LAW_TRGT_IF_LBC),
 };

board/freescale/p2020ds/p2020ds.c

@@ -155,113 +155,10 @@ phys_size_t fixed_sdram(void)
 
 #endif
 
-#ifdef CONFIG_PCIE1
-static struct pci_controller pcie1_hose;
-#endif
-
-#ifdef CONFIG_PCIE2
-static struct pci_controller pcie2_hose;
-#endif
-
-#ifdef CONFIG_PCIE3
-static struct pci_controller pcie3_hose;
-#endif
-
 #ifdef CONFIG_PCI
 void pci_init_board(void)
 {
-	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
-	struct fsl_pci_info pci_info[3];
-	u32 devdisr, pordevsr, io_sel;
-	int first_free_busno = 0;
-	int num = 0;
-
-	int pcie_ep, pcie_configured;
-
-	devdisr = in_be32(&gur->devdisr);
-	pordevsr = in_be32(&gur->pordevsr);
-	io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
-
-	debug ("   pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel);
-
-	puts("\n");
-#ifdef CONFIG_PCIE2
-	pcie_configured = is_serdes_configured(PCIE2);
-
-	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE2)) {
-		SET_STD_PCIE_INFO(pci_info[num], 2);
-		pcie_ep = fsl_setup_hose(&pcie2_hose, pci_info[num].regs);
-		printf("PCIE2: connected to ULI as %s (base addr %lx)\n",
-			pcie_ep ? "Endpoint" : "Root Complex",
-			pci_info[num].regs);
-		first_free_busno = fsl_pci_init_port(&pci_info[num++],
-					&pcie2_hose, first_free_busno);
-
-		/*
-		 * The workaround doesn't work on p2020 because the location
-		 * we try and read isn't valid on p2020, fix this later
-		 */
-#if 0
-		/*
-		 * Activate ULI1575 legacy chip by performing a fake
-		 * memory access.  Needed to make ULI RTC work.
-		 * Device 1d has the first on-board memory BAR.
-		 */
-
-		pci_hose_read_config_dword(hose, PCI_BDF(2, 0x1d, 0),
-				PCI_BASE_ADDRESS_1, &temp32);
-		if (temp32 >= CONFIG_SYS_PCIE3_MEM_BUS) {
-			void *p = pci_mem_to_virt(PCI_BDF(2, 0x1d, 0),
-							temp32, 4, 0);
-			debug(" uli1575 read to %p\n", p);
-			in_be32(p);
-		}
-#endif
-	} else {
-		printf("PCIE2: disabled\n");
-	}
-	puts("\n");
-#else
-	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE2); /* disable */
-#endif
-
-#ifdef CONFIG_PCIE3
-	pcie_configured = is_serdes_configured(PCIE3);
-
-	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE3)) {
-		SET_STD_PCIE_INFO(pci_info[num], 3);
-		pcie_ep = fsl_setup_hose(&pcie3_hose, pci_info[num].regs);
-		printf("PCIE3: connected to Slot 1 as %s (base addr %lx)\n",
-			pcie_ep ? "Endpoint" : "Root Complex",
-			pci_info[num].regs);
-		first_free_busno = fsl_pci_init_port(&pci_info[num++],
-					&pcie3_hose, first_free_busno);
-	} else {
-		printf("PCIE3: disabled\n");
-	}
-	puts("\n");
-#else
-	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE3); /* disable */
-#endif
-
-#ifdef CONFIG_PCIE1
-	pcie_configured = is_serdes_configured(PCIE1);
-
-	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)) {
-		SET_STD_PCIE_INFO(pci_info[num], 1);
-		pcie_ep = fsl_setup_hose(&pcie1_hose, pci_info[num].regs);
-		printf("PCIE1: connected to Slot 2 as %s (base addr %lx)\n",
-			pcie_ep ? "Endpoint" : "Root Complex",
-			pci_info[num].regs);
-		first_free_busno = fsl_pci_init_port(&pci_info[num++],
-					&pcie1_hose, first_free_busno);
-	} else {
-		printf("PCIE1: disabled\n");
-	}
-	puts("\n");
-#else
-	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE); /* disable */
-#endif
+	fsl_pcie_init_board(0);
 }
 #endif
 

include/configs/P2020DS.h

@@ -394,6 +394,7 @@
  */
 
 /* controller 3, Slot 1, tgtid 3, Base address b000 */
+#define CONFIG_SYS_PCIE3_NAME		"Slot 1"
 #define CONFIG_SYS_PCIE3_MEM_VIRT	0x80000000
 #ifdef CONFIG_PHYS_64BIT
 #define CONFIG_SYS_PCIE3_MEM_BUS	0xe0000000
@@ -413,6 +414,7 @@
 #define CONFIG_SYS_PCIE3_IO_SIZE	0x00010000	/* 64k */
 
 /* controller 2, direct to uli, tgtid 2, Base address 9000 */
+#define CONFIG_SYS_PCIE2_NAME		"ULI"
 #define CONFIG_SYS_PCIE2_MEM_VIRT	0xa0000000
 #ifdef CONFIG_PHYS_64BIT
 #define CONFIG_SYS_PCIE2_MEM_BUS	0xe0000000
@@ -432,6 +434,7 @@
 #define CONFIG_SYS_PCIE2_IO_SIZE	0x00010000	/* 64k */
 
 /* controller 1, Slot 2, tgtid 1, Base address a000 */
+#define CONFIG_SYS_PCIE1_NAME		"Slot 2"
 #define CONFIG_SYS_PCIE1_MEM_VIRT	0xc0000000
 #ifdef CONFIG_PHYS_64BIT
 #define CONFIG_SYS_PCIE1_MEM_BUS	0xe0000000