ppc/85xx: Clean up MPC8536 DS PCI setup code

Use new fsl_pci_init_port() that reduces amount of duplicated code in the
board ports, use IO accessors and clean up printing of status info.

Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

board/freescale/mpc8536ds/mpc8536ds.c

@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Freescale Semiconductor.
+ * Copyright 2008-2009 Freescale Semiconductor, Inc.
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -189,20 +189,26 @@ static struct pci_controller pcie2_hose;
 static struct pci_controller pcie3_hose;
 #endif
 
-int first_free_busno=0;
-
-void
-pci_init_board(void)
+#ifdef CONFIG_PCI
+void pci_init_board(void)
 {
-	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
-	uint devdisr = gur->devdisr;
-	uint sdrs2_io_sel =
-		(gur->pordevsr & MPC85xx_PORDEVSR_SRDS2_IO_SEL) >> 27;
-	uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
-	uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16;
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	struct fsl_pci_info pci_info[4];
+	u32 devdisr, pordevsr, io_sel, sdrs2_io_sel;
+	u32 porpllsr, pci_agent, pci_speed, pci_32, pci_arb, pci_clk_sel;
+	int first_free_busno = 0;
+	int num = 0;
+
+	int pcie_ep, pcie_configured;
 
-	debug("   pci_init_board: devdisr=%x, sdrs2_io_sel=%x, io_sel=%x,\
-		host_agent=%x\n", devdisr, sdrs2_io_sel, io_sel, host_agent);
+	devdisr = in_be32(&gur->devdisr);
+	pordevsr = in_be32(&gur->pordevsr);
+	porpllsr = in_be32(&gur->porpllsr);
+	io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
+	sdrs2_io_sel = (pordevsr & MPC85xx_PORDEVSR_SRDS2_IO_SEL) >> 27;
+
+	debug("   pci_init_board: devdisr=%x, sdrs2_io_sel=%x, io_sel=%x\n",
+		devdisr, sdrs2_io_sel, io_sel);
 
 	if (sdrs2_io_sel == 7)
 		printf("    Serdes2 disalbed\n");
@@ -212,228 +218,97 @@ pci_init_board(void)
 	} else if (sdrs2_io_sel == 6)
 		printf("    eTSEC1 is in sgmii mode.\n");
 
+	puts("\n");
 #ifdef CONFIG_PCIE3
-{
-	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE3_ADDR;
-	struct pci_controller *hose = &pcie3_hose;
-	int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_3, host_agent);
-	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_3, io_sel);
-	struct pci_region *r = hose->regions;
+	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_3, io_sel);
 
-	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
-		printf ("\n    PCIE3 connected to Slot3 as %s (base address %x)",
+	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 Slot3 as %s (base address %lx)\n",
 			pcie_ep ? "End Point" : "Root Complex",
-			(uint)pci);
-		if (pci->pme_msg_det) {
-			pci->pme_msg_det = 0xffffffff;
-			debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
-		}
-		printf ("\n");
-
-		/* outbound memory */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCIE3_MEM_BUS,
-			       CONFIG_SYS_PCIE3_MEM_PHYS,
-			       CONFIG_SYS_PCIE3_MEM_SIZE,
-			       PCI_REGION_MEM);
-
-		/* outbound io */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCIE3_IO_BUS,
-			       CONFIG_SYS_PCIE3_IO_PHYS,
-			       CONFIG_SYS_PCIE3_IO_SIZE,
-			       PCI_REGION_IO);
-
-		hose->region_count = r - hose->regions;
-
-		hose->first_busno=first_free_busno;
-
-		fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
-
-		first_free_busno=hose->last_busno+1;
-		printf ("    PCIE3 on bus %02x - %02x\n",
-			hose->first_busno,hose->last_busno);
+			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
-	gur->devdisr |= MPC85xx_DEVDISR_PCIE3; /* disable */
+	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE3); /* disable */
 #endif
 
 #ifdef CONFIG_PCIE1
-{
-	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
-	struct pci_controller *hose = &pcie1_hose;
-	int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_1, host_agent);
-	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
-	struct pci_region *r = hose->regions;
+	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
-		printf ("\n    PCIE1 connected to Slot1 as %s (base address %x)",
+		SET_STD_PCIE_INFO(pci_info[num], 1);
+		pcie_ep = fsl_setup_hose(&pcie1_hose, pci_info[num].regs);
+		printf ("    PCIE1 connected to Slot1 as %s (base address %lx)\n",
 			pcie_ep ? "End Point" : "Root Complex",
-			(uint)pci);
-		if (pci->pme_msg_det) {
-			pci->pme_msg_det = 0xffffffff;
-			debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
-		}
-		printf ("\n");
-
-		/* outbound memory */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCIE1_MEM_BUS,
-			       CONFIG_SYS_PCIE1_MEM_PHYS,
-			       CONFIG_SYS_PCIE1_MEM_SIZE,
-			       PCI_REGION_MEM);
-
-		/* outbound io */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCIE1_IO_BUS,
-			       CONFIG_SYS_PCIE1_IO_PHYS,
-			       CONFIG_SYS_PCIE1_IO_SIZE,
-			       PCI_REGION_IO);
-
-#ifdef CONFIG_SYS_PCIE1_MEM_BUS2
-		/* outbound memory */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCIE1_MEM_BUS2,
-			       CONFIG_SYS_PCIE1_MEM_PHYS2,
-			       CONFIG_SYS_PCIE1_MEM_SIZE2,
-			       PCI_REGION_MEM);
-#endif
-		hose->region_count = r - hose->regions;
-		hose->first_busno=first_free_busno;
-
-		fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
-
-		first_free_busno=hose->last_busno+1;
-		printf("    PCIE1 on bus %02x - %02x\n",
-		       hose->first_busno,hose->last_busno);
-
+			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
-	gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
+	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE); /* disable */
 #endif
 
 #ifdef CONFIG_PCIE2
-{
-	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE2_ADDR;
-	struct pci_controller *hose = &pcie2_hose;
-	int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_2, host_agent);
-	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
-	struct pci_region *r = hose->regions;
+	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
 
-	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
-		printf ("\n    PCIE2 connected to Slot 2 as %s (base address %x)",
+	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 Slot 2 as %s (base address %lx)\n",
 			pcie_ep ? "End Point" : "Root Complex",
-			(uint)pci);
-		if (pci->pme_msg_det) {
-			pci->pme_msg_det = 0xffffffff;
-			debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
-		}
-		printf ("\n");
-
-		/* outbound memory */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCIE2_MEM_BUS,
-			       CONFIG_SYS_PCIE2_MEM_PHYS,
-			       CONFIG_SYS_PCIE2_MEM_SIZE,
-			       PCI_REGION_MEM);
-
-		/* outbound io */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCIE2_IO_BUS,
-			       CONFIG_SYS_PCIE2_IO_PHYS,
-			       CONFIG_SYS_PCIE2_IO_SIZE,
-			       PCI_REGION_IO);
-
-#ifdef CONFIG_SYS_PCIE2_MEM_BUS2
-		/* outbound memory */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCIE2_MEM_BUS2,
-			       CONFIG_SYS_PCIE2_MEM_PHYS2,
-			       CONFIG_SYS_PCIE2_MEM_SIZE2,
-			       PCI_REGION_MEM);
-#endif
-		hose->region_count = r - hose->regions;
-		hose->first_busno=first_free_busno;
-
-		fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
-		first_free_busno=hose->last_busno+1;
-		printf ("    PCIE2 on bus %02x - %02x\n",
-			hose->first_busno,hose->last_busno);
-
+			pci_info[num].regs);
+		first_free_busno = fsl_pci_init_port(&pci_info[num++],
+					&pcie2_hose, first_free_busno);
 	} else {
 		printf ("    PCIE2: disabled\n");
 	}
-}
+
+	puts("\n");
 #else
-	gur->devdisr |= MPC85xx_DEVDISR_PCIE2; /* disable */
+	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE2); /* disable */
 #endif
 
 #ifdef CONFIG_PCI1
-{
-	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR;
-	struct pci_controller *hose = &pci1_hose;
-	struct pci_region *r = hose->regions;
-
-	uint pci_agent = is_fsl_pci_agent(LAW_TRGT_IF_PCI, host_agent);
-	uint pci_speed = 66666000; /*get_clock_freq (); PCI PSPEED in [4:5] */
-	uint pci_32 = 1;
-	uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;	/* PORDEVSR[14] */
-	uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;	/* PORPLLSR[16] */
+	pci_speed = 66666000;
+	pci_32 = 1;
+	pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
+	pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;
 
 	if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
-		printf ("\n    PCI: %d bit, %s MHz, %s, %s, %s (base address %x)\n",
+		SET_STD_PCI_INFO(pci_info[num], 1);
+		pci_agent = fsl_setup_hose(&pci1_hose, pci_info[num].regs);
+		printf ("\n    PCI: %d bit, %s MHz, %s, %s, %s (base address %lx)\n",
 			(pci_32) ? 32 : 64,
 			(pci_speed == 33333000) ? "33" :
 			(pci_speed == 66666000) ? "66" : "unknown",
 			pci_clk_sel ? "sync" : "async",
 			pci_agent ? "agent" : "host",
 			pci_arb ? "arbiter" : "external-arbiter",
-			(uint)pci
-			);
-
-		/* outbound memory */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCI1_MEM_BUS,
-			       CONFIG_SYS_PCI1_MEM_PHYS,
-			       CONFIG_SYS_PCI1_MEM_SIZE,
-			       PCI_REGION_MEM);
-
-		/* outbound io */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCI1_IO_BUS,
-			       CONFIG_SYS_PCI1_IO_PHYS,
-			       CONFIG_SYS_PCI1_IO_SIZE,
-			       PCI_REGION_IO);
-
-#ifdef CONFIG_SYS_PCI1_MEM_BUS2
-		/* outbound memory */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCI1_MEM_BUS2,
-			       CONFIG_SYS_PCI1_MEM_PHYS2,
-			       CONFIG_SYS_PCI1_MEM_SIZE2,
-			       PCI_REGION_MEM);
-#endif
-		hose->region_count = r - hose->regions;
-		hose->first_busno=first_free_busno;
+			pci_info[num].regs);
 
-		fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
-		first_free_busno=hose->last_busno+1;
-		printf ("PCI on bus %02x - %02x\n",
-			hose->first_busno,hose->last_busno);
+		first_free_busno = fsl_pci_init_port(&pci_info[num++],
+					&pci1_hose, first_free_busno);
 	} else {
 		printf ("    PCI: disabled\n");
 	}
-}
+
+	puts("\n");
 #else
-	gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
+	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */
 #endif
 }
+#endif
 
 int board_early_init_r(void)
 {