mpc83xx: Add PCI-E support for MPC8315ERDB boards

MPC8315ERDB boards features PCI-E x1 and Mini PCI-E x1 ports. Let's
support them.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>

diff --git a/board/freescale/mpc8315erdb/mpc8315erdb.c b/board/freescale/mpc8315erdb/mpc8315erdb.c
index ea4b04fd3de73724d41c9a148c438d775cef1041..f80b0ba4a59649feab8acf228d4814be45ed3f06 100644 (file)
--- a/board/freescale/mpc8315erdb/mpc8315erdb.c
+++ b/board/freescale/mpc8315erdb/mpc8315erdb.c
@@ -30,6 +30,7 @@
 #include <pci.h>
 #include <mpc83xx.h>
 #include <netdev.h>
+#include <asm/io.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -95,12 +96,45 @@ static struct pci_region pci_regions[] = {
        }
 };
 
+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 *)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, };
        int warmboot;
 
        /* Enable all 3 PCI_CLK_OUTPUTs. */
@@ -119,6 +153,24 @@ void pci_init_board(void)
        warmboot |= immr->pmc.pmccr1 & PMCCR1_POWER_OFF;
 
        mpc83xx_pci_init(1, reg, warmboot);
+
+       /* 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, warmboot);
 }
 
 #if defined(CONFIG_OF_BOARD_SETUP)

diff --git a/include/configs/MPC8315ERDB.h b/include/configs/MPC8315ERDB.h
index add65f03d059166fd5ae77cd18d8e7b0645dca78..909353d41759d4af582749cb4d339646ac27eb69 100644 (file)
--- a/include/configs/MPC8315ERDB.h
+++ b/include/configs/MPC8315ERDB.h
@@ -308,8 +308,29 @@
 #define CONFIG_SYS_PCI_SLV_MEM_BUS     0x00000000
 #define CONFIG_SYS_PCI_SLV_MEM_SIZE    0x80000000
 
+#define CONFIG_SYS_PCIE1_BASE          0xA0000000
+#define CONFIG_SYS_PCIE1_MEM_BASE      0xA0000000
+#define CONFIG_SYS_PCIE1_MEM_PHYS      0xA0000000
+#define CONFIG_SYS_PCIE1_MEM_SIZE      0x10000000
+#define CONFIG_SYS_PCIE1_CFG_BASE      0xB0000000
+#define CONFIG_SYS_PCIE1_CFG_SIZE      0x01000000
+#define CONFIG_SYS_PCIE1_IO_BASE       0x00000000
+#define CONFIG_SYS_PCIE1_IO_PHYS       0xB1000000
+#define CONFIG_SYS_PCIE1_IO_SIZE       0x00800000
+
+#define CONFIG_SYS_PCIE2_BASE          0xC0000000
+#define CONFIG_SYS_PCIE2_MEM_BASE      0xC0000000
+#define CONFIG_SYS_PCIE2_MEM_PHYS      0xC0000000
+#define CONFIG_SYS_PCIE2_MEM_SIZE      0x10000000
+#define CONFIG_SYS_PCIE2_CFG_BASE      0xD0000000
+#define CONFIG_SYS_PCIE2_CFG_SIZE      0x01000000
+#define CONFIG_SYS_PCIE2_IO_BASE       0x00000000
+#define CONFIG_SYS_PCIE2_IO_PHYS       0xD1000000
+#define CONFIG_SYS_PCIE2_IO_SIZE       0x00800000
+
 #define CONFIG_PCI
 #define CONFIG_83XX_GENERIC_PCI        1 /* Use generic PCI setup */
+#define CONFIG_83XX_GENERIC_PCIE       1
 
 #define CONFIG_NET_MULTI
 #define CONFIG_PCI_PNP         /* do pci plug-and-play */