x86: Convert to use driver model pci on quark/galileo

Move to driver model pci for Intel quark/galileo.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>

arch/x86/cpu/quark/Makefile

@@ -6,4 +6,3 @@
 
 obj-y += car.o dram.o msg_port.o quark.o
 obj-y += mrc.o mrc_util.o hte.o smc.o
-obj-$(CONFIG_PCI) += pci.o

arch/x86/cpu/quark/pci.c

@@ -1,70 +0,0 @@
-/*
- * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <pci.h>
-#include <asm/pci.h>
-#include <asm/arch/device.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-void board_pci_setup_hose(struct pci_controller *hose)
-{
-	hose->first_busno = 0;
-	hose->last_busno = 0;
-
-	/* PCI memory space */
-	pci_set_region(hose->regions + 0,
-		       CONFIG_PCI_MEM_BUS,
-		       CONFIG_PCI_MEM_PHYS,
-		       CONFIG_PCI_MEM_SIZE,
-		       PCI_REGION_MEM);
-
-	/* PCI IO space */
-	pci_set_region(hose->regions + 1,
-		       CONFIG_PCI_IO_BUS,
-		       CONFIG_PCI_IO_PHYS,
-		       CONFIG_PCI_IO_SIZE,
-		       PCI_REGION_IO);
-
-	pci_set_region(hose->regions + 2,
-		       CONFIG_PCI_PREF_BUS,
-		       CONFIG_PCI_PREF_PHYS,
-		       CONFIG_PCI_PREF_SIZE,
-		       PCI_REGION_PREFETCH);
-
-	pci_set_region(hose->regions + 3,
-		       0,
-		       0,
-		       gd->ram_size,
-		       PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
-
-	hose->region_count = 4;
-}
-
-int board_pci_post_scan(struct pci_controller *hose)
-{
-	return 0;
-}
-
-int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev)
-{
-	/*
-	 * TODO:
-	 *
-	 * For some unknown reason, the PCI enumeration process hangs
-	 * when it scans to the PCIe root port 0 (D23:F0) & 1 (D23:F1).
-	 *
-	 * For now we just skip these two devices, and this needs to
-	 * be revisited later.
-	 */
-	if (dev == QUARK_HOST_BRIDGE ||
-	    dev == QUARK_PCIE0 || dev == QUARK_PCIE1) {
-		return 1;
-	}
-
-	return 0;
-}

arch/x86/cpu/quark/quark.c

@@ -136,7 +136,6 @@ static void quark_enable_legacy_seg(void)
 
 int arch_cpu_init(void)
 {
-	struct pci_controller *hose;
 	int ret;
 
 	post_code(POST_CPU_INIT);
@@ -148,10 +147,6 @@ int arch_cpu_init(void)
 	if (ret)
 		return ret;
 
-	ret = pci_early_init_hose(&hose);
-	if (ret)
-		return ret;
-
 	/*
 	 * Quark SoC has some non-standard BARs (excluding PCI standard BARs)
 	 * which need be initialized with suggested values

arch/x86/dts/galileo.dts

@@ -54,8 +54,11 @@
 	pci {
 		#address-cells = <3>;
 		#size-cells = <2>;
-		compatible = "intel,pci";
+		compatible = "pci-x86";
-		device_type = "pci";
+		u-boot,dm-pre-reloc;
+		ranges = <0x02000000 0x0 0x90000000 0x90000000 0 0x20000000
+			  0x42000000 0x0 0xb0000000 0xb0000000 0 0x20000000
+			  0x01000000 0x0 0x2000 0x2000 0 0xe000>;
 
 		pciuart0: uart@14,5 {
 			compatible = "pci8086,0936.00",
@@ -63,6 +66,7 @@
 					"pciclass,070002",
 					"pciclass,0700",
 					"x86-uart";
+			u-boot,dm-pre-reloc;
 			reg = <0x0000a500 0x0 0x0 0x0 0x0
 			       0x0200a510 0x0 0x0 0x0 0x0>;
 			reg-shift = <2>;

configs/galileo_defconfig

@@ -14,6 +14,7 @@ CONFIG_OF_CONTROL=y
 CONFIG_SPI_FLASH=y
 CONFIG_NETDEVICES=y
 CONFIG_ETH_DESIGNWARE=y
+CONFIG_DM_PCI=y
 CONFIG_DM_RTC=y
 CONFIG_USE_PRIVATE_LIBGCC=y
 CONFIG_SYS_VSNPRINTF=y

include/configs/galileo.h

@@ -20,18 +20,6 @@
 /* ns16550 UART is memory-mapped in Quark SoC */
 #undef  CONFIG_SYS_NS16550_PORT_MAPPED
 
-#define CONFIG_PCI_MEM_BUS		0x90000000
-#define CONFIG_PCI_MEM_PHYS		CONFIG_PCI_MEM_BUS
-#define CONFIG_PCI_MEM_SIZE		0x20000000
-
-#define CONFIG_PCI_PREF_BUS		0xb0000000
-#define CONFIG_PCI_PREF_PHYS		CONFIG_PCI_PREF_BUS
-#define CONFIG_PCI_PREF_SIZE		0x20000000
-
-#define CONFIG_PCI_IO_BUS		0x2000
-#define CONFIG_PCI_IO_PHYS		CONFIG_PCI_IO_BUS
-#define CONFIG_PCI_IO_SIZE		0xe000
-
 #define CONFIG_SYS_EARLY_PCI_INIT
 #define CONFIG_PCI_PNP