X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=board%2Ffreescale%2Fmpc837xerdb%2Fpci.c;h=8f50c9366e3ca25a984fc5650fab0dd3e944679f;hb=1a4596601fd395f3afb8f82f3f840c5e00bdd57a;hp=26e732028ec55063bce562a9ea8ad6c3600baeeb;hpb=5e918a98c26e8ab9b5d2d48d998a2ced2b5b85b3;p=platform%2Fkernel%2Fu-boot.git

diff --git a/board/freescale/mpc837xerdb/pci.c b/board/freescale/mpc837xerdb/pci.c
index 26e7320..8f50c93 100644
--- a/board/freescale/mpc837xerdb/pci.c
+++ b/board/freescale/mpc837xerdb/pci.c
@@ -1,59 +1,108 @@
 /*
- * Copyright (C) 2007 Freescale Semiconductor, Inc.
+ * Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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.
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
 #include <mpc83xx.h>
 #include <pci.h>
+#include <asm/io.h>
 
-#if defined(CONFIG_PCI)
 static struct pci_region pci_regions[] = {
 	{
-		bus_start: CFG_PCI_MEM_BASE,
-		phys_start: CFG_PCI_MEM_PHYS,
-		size: CFG_PCI_MEM_SIZE,
+		bus_start: CONFIG_SYS_PCI_MEM_BASE,
+		phys_start: CONFIG_SYS_PCI_MEM_PHYS,
+		size: CONFIG_SYS_PCI_MEM_SIZE,
 		flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
 	},
 	{
-		bus_start: CFG_PCI_MMIO_BASE,
-		phys_start: CFG_PCI_MMIO_PHYS,
-		size: CFG_PCI_MMIO_SIZE,
+		bus_start: CONFIG_SYS_PCI_MMIO_BASE,
+		phys_start: CONFIG_SYS_PCI_MMIO_PHYS,
+		size: CONFIG_SYS_PCI_MMIO_SIZE,
 		flags: PCI_REGION_MEM
 	},
 	{
-		bus_start: CFG_PCI_IO_BASE,
-		phys_start: CFG_PCI_IO_PHYS,
-		size: CFG_PCI_IO_SIZE,
+		bus_start: CONFIG_SYS_PCI_IO_BASE,
+		phys_start: CONFIG_SYS_PCI_IO_PHYS,
+		size: CONFIG_SYS_PCI_IO_SIZE,
 		flags: PCI_REGION_IO
 	}
 };
 
+static struct pci_region pcie_regions_0[] = {
+	{
+		.bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
+		.phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
+		.size = CONFIG_SYS_PCIE1_MEM_SIZE,
+		.flags = PCI_REGION_MEM,
+	},
+	{
+		.bus_start = CONFIG_SYS_PCIE1_IO_BASE,
+		.phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
+		.size = CONFIG_SYS_PCIE1_IO_SIZE,
+		.flags = PCI_REGION_IO,
+	},
+};
+
+static struct pci_region pcie_regions_1[] = {
+	{
+		.bus_start = CONFIG_SYS_PCIE2_MEM_BASE,
+		.phys_start = CONFIG_SYS_PCIE2_MEM_PHYS,
+		.size = CONFIG_SYS_PCIE2_MEM_SIZE,
+		.flags = PCI_REGION_MEM,
+	},
+	{
+		.bus_start = CONFIG_SYS_PCIE2_IO_BASE,
+		.phys_start = CONFIG_SYS_PCIE2_IO_PHYS,
+		.size = CONFIG_SYS_PCIE2_IO_SIZE,
+		.flags = PCI_REGION_IO,
+	},
+};
+
 void pci_init_board(void)
 {
-	volatile immap_t *immr = (volatile immap_t *)CFG_IMMR;
+	volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
+	volatile sysconf83xx_t *sysconf = &immr->sysconf;
 	volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
 	volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
+	volatile law83xx_t *pcie_law = sysconf->pcielaw;
 	struct pci_region *reg[] = { pci_regions };
+	struct pci_region *pcie_reg[] = { pcie_regions_0, pcie_regions_1, };
+	u32 spridr = in_be32(&immr->sysconf.spridr);
 
 	/* Enable all 5 PCI_CLK_OUTPUTS */
 	clk->occr |= 0xf8000000;
 	udelay(2000);
 
 	/* Configure PCI Local Access Windows */
-	pci_law[0].bar = CFG_PCI_MEM_PHYS & LAWBAR_BAR;
+	pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR;
 	pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
 
-	pci_law[1].bar = CFG_PCI_IO_PHYS & LAWBAR_BAR;
+	pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR;
 	pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
 
-	mpc83xx_pci_init(1, reg, 0);
+	mpc83xx_pci_init(1, reg);
+
+	/* There is no PEX in MPC8379 parts. */
+	if (PARTID_NO_E(spridr) == SPR_8379)
+		return;
+
+	/* Configure the clock for PCIE controller */
+	clrsetbits_be32(&clk->sccr, SCCR_PCIEXP1CM | SCCR_PCIEXP2CM,
+				    SCCR_PCIEXP1CM_1 | SCCR_PCIEXP2CM_1);
+
+	/* Deassert the resets in the control register */
+	out_be32(&sysconf->pecr1, 0xE0008000);
+	out_be32(&sysconf->pecr2, 0xE0008000);
+	udelay(2000);
+
+	/* Configure PCI Express Local Access Windows */
+	out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
+	out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
+
+	out_be32(&pcie_law[1].bar, CONFIG_SYS_PCIE2_BASE & LAWBAR_BAR);
+	out_be32(&pcie_law[1].ar, LBLAWAR_EN | LBLAWAR_512MB);
+
+	mpc83xx_pcie_init(2, pcie_reg);
 }
-#endif	/* CONFIG_PCI */