sbc8548: update PCI/PCI-e support code

The PCI/PCI-e support for the sbc8548 was based on an earlier
version of what the MPC8548CDS board was using, and in its
current state it won't even compile.  This re-syncs it to match
the latest codebase and makes use of the new shared PCI functions
to reduce board duplication.

It borrows from the MPC8568MDS, in that it pulls the PCI-e I/O
back to 0xe280_0000 (where PCI2 would be on MPC8548CDS), and
similarly it coalesces the PCI and PCI-e mem into one single TLB.

Both PCI-x and PCI-e have been tested with intel e1000 cards
under linux (with an accompanying dts change in place)

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 39 insertions, 90 deletions

diff --git a/board/sbc8548/sbc8548.c b/board/sbc8548/sbc8548.c
index f4bfd92..194f6ab 100644
--- a/board/sbc8548/sbc8548.c
+++ b/board/sbc8548/sbc8548.c
@@ -321,125 +321,74 @@ static struct pci_controller pci1_hose;
 static struct pci_controller pcie1_hose;
 #endif	/* CONFIG_PCIE1 */
 
-int first_free_busno=0;
 
+#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[2];
+	u32 devdisr, pordevsr, porpllsr, io_sel;
+	int first_free_busno = 0;
+	int num = 0;
 
-#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;
+#ifdef CONFIG_PCIE1
+	int pcie_configured;
+#endif
 
-	uint pci_32 = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32;	/* PORDEVSR[15] */
-	uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;	/* PORDEVSR[14] */
-	uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;	/* PORPLLSR[16] */
+	devdisr = in_be32(&gur->devdisr);
+	pordevsr = in_be32(&gur->pordevsr);
+	porpllsr = in_be32(&gur->porpllsr);
+	io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
 
-	uint pci_speed = CONFIG_SYS_CLK_FREQ;	/* get_clock_freq() */
+	debug("   pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel);
+
+#ifdef CONFIG_PCI1
+	if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
+		uint pci_32 = pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32;
+		uint pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
+		uint pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;
+		uint pci_speed = CONFIG_SYS_CLK_FREQ;	/* get_clock_freq() */
 
-	if (!(gur->devdisr & MPC85xx_DEVDISR_PCI1)) {
 		printf ("    PCI host: %d bit, %s MHz, %s, %s\n",
 			(pci_32) ? 32 : 64,
 			(pci_speed == 33000000) ? "33" :
 			(pci_speed == 66000000) ? "66" : "unknown",
 			pci_clk_sel ? "sync" : "async",
-			pci_arb ? "arbiter" : "external-arbiter"
-			);
-
-		/* outbound memory */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCI1_MEM_BASE,
-			       CONFIG_SYS_PCI1_MEM_PHYS,
-			       CONFIG_SYS_PCI1_MEM_SIZE,
-			       PCI_REGION_MEM);
-
-		/* outbound io */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCI1_IO_BASE,
-			       CONFIG_SYS_PCI1_IO_PHYS,
-			       CONFIG_SYS_PCI1_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 ("PCI on bus %02x - %02x\n",hose->first_busno,hose->last_busno);
-#ifdef CONFIG_PCIX_CHECK
-		if (!(gur->pordevsr & MPC85xx_PORDEVSR_PCI1)) {
-			/* PCI-X init */
-			if (CONFIG_SYS_CLK_FREQ < 66000000)
-				printf("PCI-X will only work at 66 MHz\n");
-
-			reg16 = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ
-				| PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E;
-			pci_hose_write_config_word(hose, bus, PCIX_COMMAND, reg16);
-		}
-#endif
+			pci_arb ? "arbiter" : "external-arbiter");
+
+		SET_STD_PCI_INFO(pci_info[num], 1);
+		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
 
-	gur->devdisr |= MPC85xx_DEVDISR_PCI2; /* disable PCI2 */
+	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable PCI2 */
 
 #ifdef CONFIG_PCIE1
-{
-	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
-	struct pci_controller *hose = &pcie1_hose;
-	struct pci_region *r = hose->regions;
-
-	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
-
-	if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){
-		printf ("\n    PCIE at base address %x",
-			(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_BASE,
-			       CONFIG_SYS_PCIE1_MEM_PHYS,
-			       CONFIG_SYS_PCIE1_MEM_SIZE,
-			       PCI_REGION_MEM);
-
-		/* outbound io */
-		pci_set_region(r++,
-			       CONFIG_SYS_PCIE1_IO_BASE,
-			       CONFIG_SYS_PCIE1_IO_PHYS,
-			       CONFIG_SYS_PCIE1_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);
-		printf ("PCIE on bus %d - %d\n",hose->first_busno,hose->last_busno);
-
-		first_free_busno=hose->last_busno+1;
+	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
 
+	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
+		SET_STD_PCIE_INFO(pci_info[num], 1);
+		printf ("    PCIE at base address %lx\n", pci_info[num].regs);
+		first_free_busno = fsl_pci_init_port(&pci_info[num++],
+					&pcie1_hose, first_free_busno);
 	} else {
 		printf ("    PCIE: disabled\n");
 	}
- }
+
+	puts("\n");
 #else
-	gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
+	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE); /* disable */
 #endif
-
 }
+#endif
 
 int board_eth_init(bd_t *bis)
 {