x86: Provide more configuration granularity

Planned future ports requires more granularity for some options

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>

arch/x86/lib/Makefile

@@ -25,11 +25,11 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(ARCH).o
 
-SOBJS-y	+= bios.o
-SOBJS-y	+= bios_pci.o
-SOBJS-y	+= realmode_switch.o
+SOBJS-$(CONFIG_SYS_PC_BIOS)	+= bios.o
+SOBJS-$(CONFIG_SYS_PCI_BIOS)	+= bios_pci.o
+SOBJS-$(CONFIG_SYS_X86_REALMODE)	+= realmode_switch.o
 
-COBJS-y	+= bios_setup.o
+COBJS-$(CONFIG_SYS_PC_BIOS)	+= bios_setup.o
 COBJS-y	+= board.o
 COBJS-y	+= bootm.o
 COBJS-y	+= interrupts.o
@@ -37,11 +37,11 @@ COBJS-$(CONFIG_SYS_PCAT_INTERRUPTS) += pcat_interrupts.o
 COBJS-$(CONFIG_SYS_GENERIC_TIMER) += pcat_timer.o
 COBJS-$(CONFIG_PCI) += pci.o
 COBJS-$(CONFIG_PCI) += pci_type1.o
-COBJS-y	+= realmode.o
-COBJS-y	+= timer.o
-COBJS-y	+= video_bios.o
-COBJS-y	+= video.o
-COBJS-y	+= zimage.o
+COBJS-$(CONFIG_SYS_X86_REALMODE)	+= realmode.o
+COBJS-$(CONFIG_SYS_X86_ISR_TIMER)	+= timer.o
+COBJS-$(CONFIG_VIDEO)	+= video_bios.o
+COBJS-$(CONFIG_VIDEO)	+= video.o
+COBJS-$(CONFIG_CMD_ZBOOT)	+= zimage.o
 
 SRCS	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))

arch/x86/lib/board.c

@@ -91,11 +91,13 @@ static int display_dram_config(void)
 	return 0;
 }
 
+#ifndef CONFIG_SYS_NO_FLASH
 static void display_flash_config(ulong size)
 {
 	puts("Flash: ");
 	print_size(size, "\n");
 }
+#endif
 
 /*
  * Breath some life into the board...
@@ -254,8 +256,12 @@ void board_init_f(ulong boot_flags)
 
 void board_init_r(gd_t *id, ulong dest_addr)
 {
+#if defined(CONFIG_CMD_NET)
 	char *s;
+#endif
+#ifndef CONFIG_SYS_NO_FLASH
 	ulong size;
+#endif
 	static bd_t bd_data;
 	static gd_t gd_data;
 	init_fnc_t **init_fnc_ptr;
@@ -287,10 +293,13 @@ void board_init_r(gd_t *id, ulong dest_addr)
 #ifdef CONFIG_SERIAL_MULTI
 	serial_initialize();
 #endif
+
+#ifndef CONFIG_SYS_NO_FLASH
 	/* configure available FLASH banks */
 	size = flash_init();
 	display_flash_config(size);
 	show_boot_progress(0x24);
+#endif
 
 	show_boot_progress(0x25);
 

arch/x86/lib/bootm.c

@@ -35,7 +35,7 @@
 int do_bootm_linux(int flag, int argc, char * const argv[],
 		bootm_headers_t *images)
 {
-	void		*base_ptr;
+	void		*base_ptr = NULL;
 	ulong		os_data, os_len;
 	image_header_t	*hdr;
 
@@ -73,8 +73,10 @@ int do_bootm_linux(int flag, int argc, char * const argv[],
 		goto error;
 	}
 
+#ifdef CONFIG_CMD_ZBOOT
 	base_ptr = load_zimage((void *)os_data, os_len,
 			images->rd_start, images->rd_end - images->rd_start, 0);
+#endif
 
 	if (NULL == base_ptr) {
 		printf("## Kernel loading failed ...\n");

arch/x86/lib/pci.c

@@ -151,3 +151,38 @@ int pci_shadow_rom(pci_dev_t dev, unsigned char *dest)
 
 	return res;
 }
+
+#ifdef PCI_BIOS_DEBUG
+
+void print_bios_bios_stat(void)
+{
+	printf("16 bit functions:\n");
+	printf("pci_bios_present:                %d\n",
+			RELOC_16_LONG(0xf000, num_pci_bios_present));
+	printf("pci_bios_find_device:            %d\n",
+			RELOC_16_LONG(0xf000, num_pci_bios_find_device));
+	printf("pci_bios_find_class:             %d\n",
+			RELOC_16_LONG(0xf000, num_pci_bios_find_class));
+	printf("pci_bios_generate_special_cycle: %d\n",
+			RELOC_16_LONG(0xf000,
+				      num_pci_bios_generate_special_cycle));
+	printf("pci_bios_read_cfg_byte:          %d\n",
+			RELOC_16_LONG(0xf000, num_pci_bios_read_cfg_byte));
+	printf("pci_bios_read_cfg_word:          %d\n",
+			RELOC_16_LONG(0xf000, num_pci_bios_read_cfg_word));
+	printf("pci_bios_read_cfg_dword:         %d\n",
+			RELOC_16_LONG(0xf000, num_pci_bios_read_cfg_dword));
+	printf("pci_bios_write_cfg_byte:         %d\n",
+			RELOC_16_LONG(0xf000, num_pci_bios_write_cfg_byte));
+	printf("pci_bios_write_cfg_word:         %d\n",
+			RELOC_16_LONG(0xf000, num_pci_bios_write_cfg_word));
+	printf("pci_bios_write_cfg_dword:        %d\n",
+			RELOC_16_LONG(0xf000, num_pci_bios_write_cfg_dword));
+	printf("pci_bios_get_irq_routing:        %d\n",
+			RELOC_16_LONG(0xf000, num_pci_bios_get_irq_routing));
+	printf("pci_bios_set_irq:                %d\n",
+			RELOC_16_LONG(0xf000, num_pci_bios_set_irq));
+	printf("pci_bios_unknown_function:       %d\n",
+			RELOC_16_LONG(0xf000, num_pci_bios_unknown_function));
+}
+#endif

arch/x86/lib/video_bios.c

@@ -39,45 +39,6 @@
 #define PRINTF(fmt, args...)
 #endif
 
-#ifdef CONFIG_PCI
-
-#ifdef PCI_BIOS_DEBUG
-void print_bios_bios_stat(void)
-{
-	printf("16 bit functions:\n");
-	printf("pci_bios_present:                %d\n",
-			RELOC_16_LONG(0xf000, num_pci_bios_present));
-	printf("pci_bios_find_device:            %d\n",
-			RELOC_16_LONG(0xf000, num_pci_bios_find_device));
-	printf("pci_bios_find_class:             %d\n",
-			RELOC_16_LONG(0xf000, num_pci_bios_find_class));
-	printf("pci_bios_generate_special_cycle: %d\n",
-			RELOC_16_LONG(0xf000,
-				      num_pci_bios_generate_special_cycle));
-	printf("pci_bios_read_cfg_byte:          %d\n",
-			RELOC_16_LONG(0xf000, num_pci_bios_read_cfg_byte));
-	printf("pci_bios_read_cfg_word:          %d\n",
-			RELOC_16_LONG(0xf000, num_pci_bios_read_cfg_word));
-	printf("pci_bios_read_cfg_dword:         %d\n",
-			RELOC_16_LONG(0xf000, num_pci_bios_read_cfg_dword));
-	printf("pci_bios_write_cfg_byte:         %d\n",
-			RELOC_16_LONG(0xf000, num_pci_bios_write_cfg_byte));
-	printf("pci_bios_write_cfg_word:         %d\n",
-			RELOC_16_LONG(0xf000, num_pci_bios_write_cfg_word));
-	printf("pci_bios_write_cfg_dword:        %d\n",
-			RELOC_16_LONG(0xf000, num_pci_bios_write_cfg_dword));
-	printf("pci_bios_get_irq_routing:        %d\n",
-			RELOC_16_LONG(0xf000, num_pci_bios_get_irq_routing));
-	printf("pci_bios_set_irq:                %d\n",
-			RELOC_16_LONG(0xf000, num_pci_bios_set_irq));
-	printf("pci_bios_unknown_function:       %d\n",
-			RELOC_16_LONG(0xf000, num_pci_bios_unknown_function));
-
-}
-#endif
-
-#ifdef CONFIG_VIDEO
-
 #define PCI_CLASS_VIDEO			3
 #define PCI_CLASS_VIDEO_STD		0
 #define PCI_CLASS_VIDEO_PROG_IF_VGA	0
@@ -233,5 +194,3 @@ int video_bios_init(void)
 	return 1;
 
 }
-#endif
-#endif

common/cmd_bdinfo.c

@@ -31,7 +31,8 @@ DECLARE_GLOBAL_DATA_PTR;
 
 static void print_num(const char *, ulong);
 
-#if !(defined(CONFIG_ARM) || defined(CONFIG_M68K) || defined(CONFIG_SANDBOX)) \
+#if !(defined(CONFIG_ARM) || defined(CONFIG_M68K) || \
+	defined(CONFIG_SANDBOX) || defined(CONFIG_X86)) \
 	|| defined(CONFIG_CMD_NET)
 #define HAVE_PRINT_ETH
 static void print_eth(int idx);

include/configs/eNET.h

@@ -105,6 +105,7 @@
 #define CONFIG_CMD_SETGETDCR
 #define CONFIG_CMD_SOURCE
 #define CONFIG_CMD_XIMG
+#define CONFIG_CMD_ZBOOT
 
 #define CONFIG_BOOTDELAY			15
 #define CONFIG_BOOTARGS				"root=/dev/mtdblock0 console=ttyS0,9600"
@@ -153,6 +154,10 @@
 #undef  CONFIG_SYS_GENERIC_TIMER
 #define CONFIG_SYS_PCAT_INTERRUPTS
 #define CONFIG_SYS_NUM_IRQS			16
+#define CONFIG_SYS_PC_BIOS
+#define CONFIG_SYS_PCI_BIOS
+#define CONFIG_SYS_X86_REALMODE
+#define CONFIG_SYS_X86_ISR_TIMER
 
 /*-----------------------------------------------------------------------
  * Memory organization: