arm: ls102xa: Update PCIe dts node status

The patch changes PCIe dts node status to 'disabled' if the
corresponding controller is disabled according to serdes protocol.

Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

arch/arm/include/asm/arch-ls102xa/config.h

@@ -53,6 +53,9 @@
 
 #define LPUART_BASE				(CONFIG_SYS_IMMR + 0x01950000)
 
+#define CONFIG_SYS_PCIE1_ADDR			(CONFIG_SYS_IMMR + 0x2400000)
+#define CONFIG_SYS_PCIE2_ADDR			(CONFIG_SYS_IMMR + 0x2500000)
+
 #ifdef CONFIG_DDR_SPD
 #define CONFIG_SYS_FSL_DDR_BE
 #define CONFIG_VERY_BIG_RAM

arch/arm/include/asm/pcie_layerscape.h

@@ -0,0 +1,13 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __PCIE_LAYERSCAPE_H_
+#define __PCIE_LAYERSCAPE_H_
+
+void pci_init_board(void);
+void ft_pcie_setup(void *blob, bd_t *bd);
+
+#endif

board/freescale/ls1021aqds/ls1021aqds.c

@@ -10,6 +10,7 @@
 #include <asm/arch/immap_ls102xa.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/fsl_serdes.h>
+#include <asm/pcie_layerscape.h>
 #include <mmc.h>
 #include <fsl_esdhc.h>
 #include <fsl_ifc.h>
@@ -258,6 +259,10 @@ int ft_board_setup(void *blob, bd_t *bd)
 {
 	ft_cpu_setup(blob, bd);
 
+#ifdef CONFIG_PCIE_LAYERSCAPE
+	ft_pcie_setup(blob, bd);
+#endif
+
 	return 0;
 }
 

board/freescale/ls1021atwr/ls1021atwr.c

@@ -10,6 +10,7 @@
 #include <asm/arch/immap_ls102xa.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/fsl_serdes.h>
+#include <asm/pcie_layerscape.h>
 #include <mmc.h>
 #include <fsl_esdhc.h>
 #include <fsl_ifc.h>
@@ -307,6 +308,10 @@ int ft_board_setup(void *blob, bd_t *bd)
 {
 	ft_cpu_setup(blob, bd);
 
+#ifdef CONFIG_PCIE_LAYERSCAPE
+	ft_pcie_setup(blob, bd);
+#endif
+
 	return 0;
 }
 

drivers/pci/Makefile

@@ -17,3 +17,4 @@ obj-$(CONFIG_SH7751_PCI) +=pci_sh7751.o
 obj-$(CONFIG_SH7780_PCI) +=pci_sh7780.o
 obj-$(CONFIG_TSI108_PCI) += tsi108_pci.o
 obj-$(CONFIG_WINBOND_83C553) += w83c553f.o
+obj-$(CONFIG_PCIE_LAYERSCAPE) += pcie_layerscape.o

drivers/pci/pcie_layerscape.c

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ * Layerscape PCIe driver
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/fsl_serdes.h>
+#include <pci.h>
+#include <asm/io.h>
+#include <asm/pcie_layerscape.h>
+
+#ifdef CONFIG_OF_BOARD_SETUP
+#include <libfdt.h>
+#include <fdt_support.h>
+
+static void ft_pcie_ls_setup(void *blob, const char *pci_compat,
+			     unsigned long ctrl_addr, enum srds_prtcl dev)
+{
+	int off;
+
+	off = fdt_node_offset_by_compat_reg(blob, pci_compat,
+					    (phys_addr_t)ctrl_addr);
+	if (off < 0)
+		return;
+
+	if (!is_serdes_configured(dev))
+		fdt_set_node_status(blob, off, FDT_STATUS_DISABLED, 0);
+}
+
+void ft_pcie_setup(void *blob, bd_t *bd)
+{
+	#ifdef CONFIG_PCIE1
+	ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE1_ADDR, PCIE1);
+	#endif
+
+	#ifdef CONFIG_PCIE2
+	ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE2_ADDR, PCIE2);
+	#endif
+}
+
+#else
+void ft_pcie_setup(void *blob, bd_t *bd)
+{
+}
+#endif
+
+void pci_init_board(void)
+{
+}

include/configs/ls1021aqds.h

@@ -341,6 +341,14 @@ unsigned long get_board_ddr_clk(void);
 #endif
 
 #endif
+
+/* PCIe */
+#define CONFIG_PCI		/* Enable PCI/PCIE */
+#define CONFIG_PCIE1		/* PCIE controler 1 */
+#define CONFIG_PCIE2		/* PCIE controler 2 */
+#define CONFIG_PCIE_LAYERSCAPE	/* Use common FSL Layerscape PCIe code */
+#define FSL_PCIE_COMPAT "fsl,ls1021a-pcie"
+
 #define CONFIG_CMD_PING
 #define CONFIG_CMD_DHCP
 #define CONFIG_CMD_MII

include/configs/ls1021atwr.h

@@ -236,6 +236,13 @@
 #define CONFIG_HAS_ETH2
 #endif
 
+/* PCIe */
+#define CONFIG_PCI		/* Enable PCI/PCIE */
+#define CONFIG_PCIE1		/* PCIE controler 1 */
+#define CONFIG_PCIE2		/* PCIE controler 2 */
+#define CONFIG_PCIE_LAYERSCAPE	/* Use common FSL Layerscape PCIe code */
+#define FSL_PCIE_COMPAT "fsl,ls1021a-pcie"
+
 #define CONFIG_CMD_PING
 #define CONFIG_CMD_DHCP
 #define CONFIG_CMD_MII