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>

4 files changed, 96 insertions, 143 deletions

diff --git a/board/sbc8548/law.c b/board/sbc8548/law.c
index e8c7ae2..6d1efc0 100644
--- a/board/sbc8548/law.c
+++ b/board/sbc8548/law.c
@@ -32,8 +32,10 @@
  *
  * 0x0000_0000	0x0fff_ffff	DDR			256M
  * 0x8000_0000	0x9fff_ffff	PCI1 MEM		512M
+ * 0xa000_0000	0xbfff_ffff	PCIe MEM		512M
  * 0xe000_0000	0xe000_ffff	CCSR			1M
- * 0xe200_0000	0xe2ff_ffff	PCI1 IO			16M
+ * 0xe200_0000	0xe27f_ffff	PCI1 IO			8M
+ * 0xe280_0000	0xe2ff_ffff	PCIe IO			8M
  * 0xf000_0000	0xf7ff_ffff	SDRAM			128M
  * 0xf8b0_0000	0xf80f_ffff	EEPROM			1M
  * 0xfb80_0000	0xff7f_ffff	FLASH (2nd bank)	64M
@@ -48,8 +50,14 @@ struct law_entry law_table[] = {
 #ifndef CONFIG_SPD_EEPROM
 	SET_LAW(CONFIG_SYS_DDR_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_DDR),
 #endif
+#ifdef CONFIG_SYS_PCI1_MEM_PHYS
 	SET_LAW(CONFIG_SYS_PCI1_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCI),
-	SET_LAW(CONFIG_SYS_PCI1_IO_PHYS, LAW_SIZE_16M, LAW_TRGT_IF_PCI),
+	SET_LAW(CONFIG_SYS_PCI1_IO_PHYS, LAW_SIZE_8M, LAW_TRGT_IF_PCI),
+#endif
+#ifdef CONFIG_SYS_PCIE1_MEM_PHYS
+	SET_LAW(CONFIG_SYS_PCIE1_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_PCIE_1),
+	SET_LAW(CONFIG_SYS_PCIE1_IO_PHYS, LAW_SIZE_8M, LAW_TRGT_IF_PCIE_1),
+#endif
 	/* LBC window - maps 256M 0xf0000000 -> 0xffffffff */
 	SET_LAW(CONFIG_SYS_LBC_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_LBC),
 };
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)
 {
diff --git a/board/sbc8548/tlb.c b/board/sbc8548/tlb.c
index a1795fc..38bdeb3 100644
--- a/board/sbc8548/tlb.c
+++ b/board/sbc8548/tlb.c
@@ -56,60 +56,53 @@ struct fsl_e_tlb_entry tlb_table[] = {
 		      0, 0, BOOKE_PAGESZ_64M, 1),
 
 	/*
-	 * TLB 1:	256M	Non-cacheable, guarded
-	 * 0x80000000	256M	PCI1 MEM First half
+	 * TLB 1:	1G	Non-cacheable, guarded
+	 * 0x80000000	512M	PCI1 MEM
+	 * 0xa0000000	512M	PCIe MEM
 	 */
-	SET_TLB_ENTRY(1, CONFIG_SYS_PCI1_MEM_PHYS, CONFIG_SYS_PCI1_MEM_PHYS,
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCI1_MEM_VIRT, CONFIG_SYS_PCI1_MEM_PHYS,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 1, BOOKE_PAGESZ_256M, 1),
+		      0, 1, BOOKE_PAGESZ_1G, 1),
 
 	/*
-	 * TLB 2:	256M	Non-cacheable, guarded
-	 * 0x90000000	256M	PCI1 MEM Second half
-	 */
-	SET_TLB_ENTRY(1, CONFIG_SYS_PCI1_MEM_PHYS + 0x10000000,
-		      CONFIG_SYS_PCI1_MEM_PHYS + 0x10000000,
-		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 2, BOOKE_PAGESZ_256M, 1),
-
-	/*
-	 * TLB 3:	256M Cacheable, non-guarded
+	 * TLB 2:	256M Cacheable, non-guarded
 	 * 0x0		256M DDR SDRAM
 	 */
-	#if !defined(CONFIG_SPD_EEPROM)
+#if !defined(CONFIG_SPD_EEPROM)
 	SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
-		      0, 3, BOOKE_PAGESZ_256M, 1),
-	#endif
+		      0, 2, BOOKE_PAGESZ_256M, 1),
+#endif
 
 	/*
-	 * TLB 4:	64M	Non-cacheable, guarded
+	 * TLB 3:	64M	Non-cacheable, guarded
 	 * 0xe0000000	1M	CCSRBAR
-	 * 0xe2000000	16M	PCI1 IO
+	 * 0xe2000000	8M	PCI1 IO
+	 * 0xe2800000	8M	PCIe IO
 	 */
 	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 4, BOOKE_PAGESZ_64M, 1),
+		      0, 3, BOOKE_PAGESZ_64M, 1),
 
 	/*
-	 * TLB 5:	64M	Cacheable, non-guarded
+	 * TLB 4:	64M	Cacheable, non-guarded
 	 * 0xf0000000	64M	LBC SDRAM First half
 	 */
 	SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE, CONFIG_SYS_LBC_SDRAM_BASE,
 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
-		      0, 5, BOOKE_PAGESZ_64M, 1),
+		      0, 4, BOOKE_PAGESZ_64M, 1),
 
 	/*
-	 * TLB 6:	64M	Cacheable, non-guarded
+	 * TLB 5:	64M	Cacheable, non-guarded
 	 * 0xf4000000	64M	LBC SDRAM Second half
 	 */
 	SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000,
 		      CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000,
 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
-		      0, 6, BOOKE_PAGESZ_64M, 1),
+		      0, 5, BOOKE_PAGESZ_64M, 1),
 
 	/*
-	 * TLB 7:	16M	Cacheable, non-guarded
+	 * TLB 6:	16M	Cacheable, non-guarded
 	 * 0xf8000000	1M	7-segment LED display
 	 * 0xf8100000	1M	User switches
 	 * 0xf8300000	1M	Board revision
@@ -117,24 +110,24 @@ struct fsl_e_tlb_entry tlb_table[] = {
 	 */
 	SET_TLB_ENTRY(1, CONFIG_SYS_EPLD_BASE, CONFIG_SYS_EPLD_BASE,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 7, BOOKE_PAGESZ_16M, 1),
+		      0, 6, BOOKE_PAGESZ_16M, 1),
 
 	/*
-	 * TLB 8:	4M	Non-cacheable, guarded
+	 * TLB 7:	4M	Non-cacheable, guarded
 	 * 0xfb800000	4M	1st 4MB block of 64MB user FLASH
 	 */
 	SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH, CONFIG_SYS_ALT_FLASH,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 8, BOOKE_PAGESZ_4M, 1),
+		      0, 7, BOOKE_PAGESZ_4M, 1),
 
 	/*
-	 * TLB 9:	4M	Non-cacheable, guarded
+	 * TLB 8:	4M	Non-cacheable, guarded
 	 * 0xfbc00000	4M	2nd 4MB block of 64MB user FLASH
 	 */
 	SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH + 0x400000,
 		      CONFIG_SYS_ALT_FLASH + 0x400000,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
-		      0, 9, BOOKE_PAGESZ_4M, 1),
+		      0, 8, BOOKE_PAGESZ_4M, 1),
 
 };
 
diff --git a/include/configs/sbc8548.h b/include/configs/sbc8548.h
index 009931d..1f340ed 100644
--- a/include/configs/sbc8548.h
+++ b/include/configs/sbc8548.h
@@ -42,7 +42,14 @@
 #undef CONFIG_PCI1		/* PCI controller 1 */
 #undef CONFIG_PCIE1		/* PCIE controler 1 (slot 1) */
 #undef CONFIG_RIO
-#undef CONFIG_FSL_PCI_INIT		/* Use common FSL init code */
+
+#ifdef CONFIG_PCI
+#define CONFIG_FSL_PCI_INIT		/* Use common FSL init code */
+#define CONFIG_SYS_PCI_64BIT    1	/* enable 64-bit PCI resources */
+#endif
+#ifdef CONFIG_PCIE1
+#define CONFIG_FSL_PCIE_RESET   1	/* need PCIe reset errata */
+#endif
 
 #define CONFIG_TSEC_ENET		/* tsec ethernet support */
 #define CONFIG_ENV_OVERWRITE
@@ -343,31 +350,27 @@
  * General PCI
  * Memory space is mapped 1-1, but I/O space must start from 0.
  */
+#define CONFIG_SYS_PCI_VIRT		0x80000000	/* 1G PCI TLB */
 #define CONFIG_SYS_PCI_PHYS		0x80000000	/* 1G PCI TLB */
 
-#define CONFIG_SYS_PCI1_MEM_BASE	0x80000000
-#define CONFIG_SYS_PCI1_MEM_PHYS	CONFIG_SYS_PCI1_MEM_BASE
+#define CONFIG_SYS_PCI1_MEM_VIRT	0x80000000
+#define CONFIG_SYS_PCI1_MEM_BUS		0x80000000
+#define CONFIG_SYS_PCI1_MEM_PHYS	0x80000000
 #define CONFIG_SYS_PCI1_MEM_SIZE	0x20000000	/* 512M */
-#define CONFIG_SYS_PCI1_IO_BASE	0x00000000
-#define CONFIG_SYS_PCI1_IO_PHYS	0xe2000000
-#define CONFIG_SYS_PCI1_IO_SIZE	0x00100000	/* 1M */
-
-#ifdef CONFIG_PCI2
-#define CONFIG_SYS_PCI2_MEM_BASE	0xa0000000
-#define CONFIG_SYS_PCI2_MEM_PHYS	CONFIG_SYS_PCI2_MEM_BASE
-#define CONFIG_SYS_PCI2_MEM_SIZE	0x20000000	/* 512M */
-#define CONFIG_SYS_PCI2_IO_BASE	0x00000000
-#define CONFIG_SYS_PCI2_IO_PHYS	0xe2800000
-#define CONFIG_SYS_PCI2_IO_SIZE	0x00100000	/* 1M */
-#endif
+#define CONFIG_SYS_PCI1_IO_VIRT		0xe2000000
+#define CONFIG_SYS_PCI1_IO_BUS		0x00000000
+#define CONFIG_SYS_PCI1_IO_PHYS		0xe2000000
+#define CONFIG_SYS_PCI1_IO_SIZE		0x00800000	/* 8M */
 
 #ifdef CONFIG_PCIE1
-#define CONFIG_SYS_PCIE1_MEM_BASE	0xa0000000
-#define CONFIG_SYS_PCIE1_MEM_PHYS	CONFIG_SYS_PCIE1_MEM_BASE
+#define CONFIG_SYS_PCIE1_MEM_VIRT	0xa0000000
+#define CONFIG_SYS_PCIE1_MEM_BUS	0xa0000000
+#define CONFIG_SYS_PCIE1_MEM_PHYS	0xa0000000
 #define CONFIG_SYS_PCIE1_MEM_SIZE	0x20000000	/* 512M */
-#define CONFIG_SYS_PCIE1_IO_BASE	0x00000000
-#define CONFIG_SYS_PCIE1_IO_PHYS	0xe3000000
-#define CONFIG_SYS_PCIE1_IO_SIZE	0x00100000	/*   1M */
+#define CONFIG_SYS_PCIE1_IO_VIRT	0xe2800000
+#define CONFIG_SYS_PCIE1_IO_BUS		0x00000000
+#define CONFIG_SYS_PCIE1_IO_PHYS	0xe2800000
+#define CONFIG_SYS_PCIE1_IO_SIZE	0x00800000	/* 8M */
 #endif
 
 #ifdef CONFIG_RIO
@@ -386,7 +389,7 @@
 #undef CONFIG_EEPRO100
 #undef CONFIG_TULIP
 
-#undef CONFIG_PCI_SCAN_SHOW		/* show pci devices on startup */
+#define CONFIG_PCI_SCAN_SHOW		/* show pci devices on startup */
 
 #endif	/* CONFIG_PCI */