Patchwork [U-Boot,v5,17/23] Adjust board_r.c for ppc

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Submitter Simon Glass
Date Feb. 8, 2013, 3:12 p.m.
Message ID <1360336339-10703-18-git-send-email-sjg@chromium.org>
Download mbox | patch
Permalink /patch/219194/
State Deferred, archived
Delegated to: Tom Rini
Headers show

Comments

Simon Glass - Feb. 8, 2013, 3:12 p.m.
This adds ppc features to the generic post-relocation board init.

Signed-off-by: Simon Glass <sjg@chromium.org>
---
Changes in v5:
- Add prototype for update_flash_size() to include/common.h
- Updates in board_r.c to make ppc build correctly
- Add prototype for board_start_ide() to include/ide.h
- Bring in new ppc features since this patch was first created

Changes in v4:
- Updates to sit on top of earlier patches

Changes in v3: None
Changes in v2: None

 common/board_r.c | 477 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 include/common.h |   1 +
 include/ide.h    |   7 +
 3 files changed, 482 insertions(+), 3 deletions(-)

Patch

diff --git a/common/board_r.c b/common/board_r.c
index 2511471..24d8a17 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -27,25 +27,81 @@ 
  */
 
 #include <common.h>
+/* TODO: can we just include all these headers whether needed or not? */
+#if defined(CONFIG_CMD_BEDBUG)
+#include <bedbug/type.h>
+#endif
 #ifdef CONFIG_HAS_DATAFLASH
 #include <dataflash.h>
 #endif
 #include <environment.h>
 #include <fdtdec.h>
+#if defined(CONFIG_CMD_IDE)
+#include <ide.h>
+#endif
 #include <initcall.h>
+#ifdef CONFIG_PS2KBD
+#include <keyboard.h>
+#endif
+#if defined(CONFIG_CMD_KGDB)
+#include <kgdb.h>
+#endif
 #include <logbuff.h>
 #include <malloc.h>
+#ifdef CONFIG_BITBANGMII
+#include <miiphy.h>
+#endif
 #include <mmc.h>
 #include <nand.h>
 #include <onenand_uboot.h>
+#include <scsi.h>
 #include <serial.h>
+#include <spi.h>
 #include <stdio_dev.h>
+#include <watchdog.h>
+#ifdef CONFIG_ADDR_MAP
+#include <asm/mmu.h>
+#endif
 #include <asm/sections.h>
+#include <linux/compiler.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
 ulong monitor_flash_len;
 
+int __board_flash_wp_on(void)
+{
+	/*
+	 * Most flashes can't be detected when write protection is enabled,
+	 * so provide a way to let U-Boot gracefully ignore write protected
+	 * devices.
+	 */
+	return 0;
+}
+
+int board_flash_wp_on(void)
+	__attribute__ ((weak, alias("__board_flash_wp_on")));
+
+void __cpu_secondary_init_r(void)
+{
+}
+
+void cpu_secondary_init_r(void)
+	__attribute__ ((weak, alias("__cpu_secondary_init_r")));
+
+static int initr_secondary_cpu(void)
+{
+	/*
+	 * after non-volatile devices & environment is setup and cpu code have
+	 * another round to deal with any initialization that might require
+	 * full access to the environment or loading of some image (firmware)
+	 * from a non-volatile device
+	 */
+	/* TODO: maybe define this for all archs? */
+	cpu_secondary_init_r();
+
+	return 0;
+}
 
 static int initr_reloc(void)
 {
@@ -68,6 +124,11 @@  static int initr_caches(void)
 }
 #endif
 
+__weak int fixup_cpu(void)
+{
+	return 0;
+}
+
 static int initr_reloc_global_data(void)
 {
 #ifdef CONFIG_SYS_SYM_OFFSETS
@@ -75,6 +136,31 @@  static int initr_reloc_global_data(void)
 #else
 	monitor_flash_len = (ulong)&__init_end - gd->dest_addr;
 #endif
+#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
+	/*
+	 * The gd->cpu pointer is set to an address in flash before relocation.
+	 * We need to update it to point to the same CPU entry in RAM.
+	 * TODO: why not just add gd->reloc_ofs?
+	 */
+	gd->arch.cpu += gd->dest_addr - CONFIG_SYS_MONITOR_BASE;
+
+	/*
+	 * If we didn't know the cpu mask & # cores, we can save them of
+	 * now rather than 'computing' them constantly
+	 */
+	fixup_cpu();
+#endif
+#ifdef CONFIG_SYS_EXTRA_ENV_RELOC
+	/*
+	 * Some systems need to relocate the env_addr pointer early because the
+	 * location it points to will get invalidated before env_relocate is
+	 * called.  One example is on systems that might use a L2 or L3 cache
+	 * in SRAM mode and initialize that cache from SRAM mode back to being
+	 * a cache in cpu_init_r.
+	 */
+	gd->env_addr += gd->dest_addr - CONFIG_SYS_MONITOR_BASE;
+#endif
+	return 0;
 }
 
 static int initr_serial(void)
@@ -83,6 +169,27 @@  static int initr_serial(void)
 	return 0;
 }
 
+#ifdef CONFIG_PPC
+static int initr_trap(void)
+{
+	/*
+	 * Setup trap handlers
+	 */
+	trap_init(gd->dest_addr);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_ADDR_MAP
+static int initr_addr_map(void)
+{
+	init_addr_map();
+
+	return 0;
+}
+#endif
+
 #ifdef CONFIG_LOGBUFFER
 unsigned long logbuffer_base(void)
 {
@@ -104,6 +211,50 @@  static int initr_post_backlog(void)
 }
 #endif
 
+#ifdef CONFIG_SYS_DELAYED_ICACHE
+static int initr_icache_enable(void)
+{
+	return 0;
+}
+#endif
+
+#if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
+static int initr_unlock_ram_in_cache(void)
+{
+	unlock_ram_in_cache();	/* it's time to unlock D-cache in e500 */
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PCI
+static int initr_pci(void)
+{
+	pci_init();
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_WINBOND_83C553
+static int initr_w83c553f(void)
+{
+	/*
+	 * Initialise the ISA bridge
+	 */
+	initialise_w83c553f();
+	return 0;
+}
+#endif
+
+static int initr_barrier(void)
+{
+#ifdef CONFIG_PPC
+	/* TODO: Can we not use dmb() macros for this? */
+	asm("sync ; isync");
+#endif
+	return 0;
+}
+
 static int initr_malloc(void)
 {
 	ulong malloc_start;
@@ -128,13 +279,26 @@  static int initr_announce(void)
 #if !defined(CONFIG_SYS_NO_FLASH)
 static int initr_flash(void)
 {
-	ulong flash_size;
+	ulong flash_size = 0;
+	bd_t *bd = gd->bd;
+	int ok;
 
 	puts("Flash: ");
 
-	flash_size = flash_init();
-	if (flash_size <= 0) {
+	if (board_flash_wp_on()) {
+		printf("Uninitialized - Write Protect On\n");
+		/* Since WP is on, we can't find real size.  Set to 0 */
+		ok = 1;
+	} else {
+		flash_size = flash_init();
+		ok = flash_size > 0;
+	}
+	if (!ok) {
 		puts("*** failed ***\n");
+#ifdef CONFIG_PPC
+		/* Why does PPC do this? */
+		hang();
+#endif
 		return -1;
 	}
 	print_size(flash_size, "");
@@ -154,6 +318,39 @@  static int initr_flash(void)
 	print_size(flash_size, "\n");
 #endif /* CONFIG_SYS_FLASH_CHECKSUM */
 
+	/* update start of FLASH memory    */
+#ifdef CONFIG_SYS_FLASH_BASE
+	bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
+#endif
+	/* size of FLASH memory (final value) */
+	bd->bi_flashsize = flash_size;
+
+#if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
+	/* Make a update of the Memctrl. */
+	update_flash_size(flash_size);
+#endif
+
+
+#if defined(CONFIG_OXC) || defined(CONFIG_RMU)
+	/* flash mapped at end of memory map */
+	bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
+#elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
+	bd->bi_flashoffset = monitor_flash_len;	/* reserved area for monitor */
+#endif
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PPC
+static int initr_spi(void)
+{
+	/* PPC does this here */
+#ifdef CONFIG_SPI
+#if !defined(CONFIG_ENV_IS_IN_EEPROM)
+	spi_init_f();
+#endif
+	spi_init_r();
+#endif
 	return 0;
 }
 #endif
@@ -228,9 +425,56 @@  static int initr_env(void)
 
 	/* Initialize from environment */
 	load_addr = getenv_ulong("loadaddr", 16, load_addr);
+#if defined(CONFIG_SYS_EXTBDINFO)
+#if defined(CONFIG_405GP) || defined(CONFIG_405EP)
+#if defined(CONFIG_I2CFAST)
+	/*
+	 * set bi_iic_fast for linux taking environment variable
+	 * "i2cfast" into account
+	 */
+	{
+		char *s = getenv("i2cfast");
+
+		if (s && ((*s == 'y') || (*s == 'Y'))) {
+			gd->bd->bi_iic_fast[0] = 1;
+			gd->bd->bi_iic_fast[1] = 1;
+		}
+	}
+#endif /* CONFIG_I2CFAST */
+#endif /* CONFIG_405GP, CONFIG_405EP */
+#endif /* CONFIG_SYS_EXTBDINFO */
+	return 0;
+}
+
+#ifdef	CONFIG_HERMES
+static int initr_hermes(void)
+{
+	if ((gd->board_type >> 16) == 2)
+		gd->bd->bi_ethspeed = gd->board_type & 0xFFFF;
+	else
+		gd->bd->bi_ethspeed = 0xFFFF;
 	return 0;
 }
 
+static int initr_hermes_start(void)
+{
+	if (gd->bd->bi_ethspeed != 0xFFFF)
+		hermes_start_lxt980((int) gd->bd->bi_ethspeed);
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_SC3
+/* TODO: with new initcalls, move this into the driver */
+extern void sc3_read_eeprom(void);
+
+static int initr_sc3_read_eeprom(void)
+{
+	sc3_read_eeprom();
+	return 0;
+}
+#endif
+
 static int initr_jumptable(void)
 {
 	jumptable_init();
@@ -271,11 +515,65 @@  static int initr_enable_interrupts(void)
 #ifdef CONFIG_CMD_NET
 static int initr_ethaddr(void)
 {
+	bd_t *bd = gd->bd;
+
+	/* kept around for legacy kernels only ... ignore the next section */
+	eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
+#ifdef CONFIG_HAS_ETH1
+	eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
+#endif
+#ifdef CONFIG_HAS_ETH2
+	eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
+#endif
+#ifdef CONFIG_HAS_ETH3
+	eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
+#endif
+#ifdef CONFIG_HAS_ETH4
+	eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
+#endif
+#ifdef CONFIG_HAS_ETH5
+	eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
+#endif
+	return 0;
+}
+#endif /* CONFIG_CMD_NET */
+
+#ifdef CONFIG_CMD_KGDB
+static int initr_kgdb(void)
+{
+	puts("KGDB:  ");
+	kgdb_init();
+	return 0;
+}
+#endif
+
+#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
+static int initr_status_led(void)
+{
+	status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
+
+	return 0;
+}
+#endif
+
+#if defined(CONFIG_CMD_SCSI)
+static int initr_scsi(void)
+{
+	puts("SCSI:  ");
+	scsi_init();
 
 	return 0;
 }
 #endif /* CONFIG_CMD_NET */
 
+#if defined(CONFIG_CMD_DOC)
+static int initr_doc(void)
+{
+	puts("DOC:   ");
+	doc_init();
+}
+#endif
+
 #ifdef CONFIG_BITBANGMII
 static int initr_bbmii(void)
 {
@@ -305,6 +603,33 @@  static int initr_post(void)
 }
 #endif
 
+#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
+static int initr_pcmcia(void)
+{
+	puts("PCMCIA:");
+	pcmcia_init();
+	return 0;
+}
+#endif
+
+#if defined(CONFIG_CMD_IDE)
+static int initr_ide(void)
+{
+#ifdef	CONFIG_IDE_8xx_PCCARD
+	puts("PCMCIA:");
+#else
+	puts("IDE:   ");
+#endif
+#if defined(CONFIG_START_IDE)
+	if (board_start_ide())
+		ide_init();
+#else
+	ide_init();
+#endif
+	return 0;
+}
+#endif
+
 #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
 /*
  * Export available size of memory for Linux, taking into account the
@@ -324,6 +649,37 @@  int initr_mem(void)
 # endif
 	sprintf(memsz, "%ldk", (gd->ram_size / 1024) - pram);
 	setenv("mem", memsz);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_CMD_BEDBUG
+static int initr_bedbug(void)
+{
+	bedbug_init();
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PS2KBD
+static int initr_kbd(void)
+{
+	puts("PS/2:  ");
+	kbd_init();
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_MODEM_SUPPORT
+static int initr_modem(void)
+{
+	/* TODO: with new initcalls, move this into the driver */
+	extern int do_mdm_init;
+
+	do_mdm_init = gd->do_mdm_init;
+	return 0;
 }
 #endif
 
@@ -341,22 +697,63 @@  static int run_main_loop(void)
  *
  * We also hope to remove most of the driver-related init and do it if/when
  * the driver is later used.
+ *
+ * TODO: perhaps reset the watchdog in the initcall function after each call?
  */
 init_fnc_t init_sequence_r[] = {
 	initr_reloc,
+	/* TODO: could x86/PPC have this also perhaps? */
 #ifdef CONFIG_ARM
 	initr_caches,
 	board_init,	/* Setup chipselects */
 #endif
+	/*
+	 * TODO: printing of the clock inforamtion of the board is now
+	 * implemented as part of bdinfo command. Currently only support for
+	 * davinci SOC's is added. Remove this check once all the board
+	 * implement this.
+	 */
+#ifdef CONFIG_CLOCKS
+	set_cpu_clk_info, /* Setup clock information */
+#endif
 	initr_reloc_global_data,
 	initr_serial,
 	initr_announce,
+	INIT_FUNC_WATCHDOG_RESET
+#ifdef CONFIG_PPC
+	initr_trap,
+#endif
+#ifdef CONFIG_ADDR_MAP
+	initr_addr_map,
+#endif
+#if defined(CONFIG_BOARD_EARLY_INIT_R)
+	board_early_init_r,
+#endif
+	INIT_FUNC_WATCHDOG_RESET
 #ifdef CONFIG_LOGBUFFER
 	initr_logbuffer,
 #endif
 #ifdef CONFIG_POST
 	initr_post_backlog,
 #endif
+	INIT_FUNC_WATCHDOG_RESET
+#ifdef CONFIG_SYS_DELAYED_ICACHE
+	initr_icache_enable,
+#endif
+#if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
+	initr_unlock_ram_in_cache,
+#endif
+#if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
+	/*
+	 * Do early PCI configuration _before_ the flash gets initialised,
+	 * because PCU ressources are crucial for flash access on some boards.
+	 */
+	initr_pci,
+#endif
+#ifdef CONFIG_WINBOND_83C553
+	initr_w83c553f,
+#endif
+	initr_barrier,
 	initr_malloc,
 #ifdef CONFIG_ARCH_EARLY_INIT_R
 	arch_early_init_r,
@@ -365,6 +762,12 @@  init_fnc_t init_sequence_r[] = {
 #ifndef CONFIG_SYS_NO_FLASH
 	initr_flash,
 #endif
+	INIT_FUNC_WATCHDOG_RESET
+#ifdef CONFIG_PPC
+	/* initialize higher level parts of CPU like time base and timers */
+	cpu_init_r,
+	initr_spi,
+#endif
 #ifdef CONFIG_CMD_NAND
 	initr_nand,
 #endif
@@ -378,6 +781,24 @@  init_fnc_t init_sequence_r[] = {
 	initr_dataflash,
 #endif
 	initr_env,
+	INIT_FUNC_WATCHDOG_RESET
+	initr_secondary_cpu,
+#ifdef CONFIG_SC3
+	initr_sc3_read_eeprom,
+#endif
+#ifdef	CONFIG_HERMES
+	initr_hermes,
+#endif
+#if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
+	mac_read_from_eeprom,
+#endif
+	INIT_FUNC_WATCHDOG_RESET
+#if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
+	/*
+	 * Do pci configuration
+	 */
+	initr_pci,
+#endif
 	stdio_init,
 	initr_jumptable,
 #ifdef CONFIG_API
@@ -393,23 +814,73 @@  init_fnc_t init_sequence_r[] = {
 #ifdef CONFIG_MISC_INIT_R
 	misc_init_r,		/* miscellaneous platform-dependent init */
 #endif
+#ifdef CONFIG_HERMES
+	initr_hermes_start,
+#endif
+	INIT_FUNC_WATCHDOG_RESET
+#ifdef CONFIG_CMD_KGDB
+	initr_kgdb,
+#endif
 	interrupt_init,
+#ifdef CONFIG_ARM
 	initr_enable_interrupts,
+#endif
+#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
+	initr_status_led,
+#endif
+	/* PPC has a udelay(20) here dating from 2002. Why? */
 #ifdef CONFIG_CMD_NET
 	initr_ethaddr,
 #endif
 #ifdef CONFIG_BOARD_LATE_INIT
 	board_late_init,
 #endif
+#ifdef CONFIG_CMD_SCSI
+	INIT_FUNC_WATCHDOG_RESET
+	initr_scsi,
+#endif
+#ifdef CONFIG_CMD_DOC
+	INIT_FUNC_WATCHDOG_RESET
+	initr_doc,
+#endif
 #ifdef CONFIG_BITBANGMII
 	initr_bbmii,
 #endif
 #ifdef CONFIG_CMD_NET
+	INIT_FUNC_WATCHDOG_RESET
 	initr_net,
 #endif
 #ifdef CONFIG_POST
 	initr_post,
 #endif
+#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
+	initr_pcmcia,
+#endif
+#if defined(CONFIG_CMD_IDE)
+	initr_ide,
+#endif
+#ifdef CONFIG_LAST_STAGE_INIT
+	INIT_FUNC_WATCHDOG_RESET
+	/*
+	 * Some parts can be only initialized if all others (like
+	 * Interrupts) are up and running (i.e. the PC-style ISA
+	 * keyboard).
+	 */
+	last_stage_init,
+#endif
+#ifdef CONFIG_CMD_BEDBUG
+	INIT_FUNC_WATCHDOG_RESET
+	initr_bedbug,
+#endif
+#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
+	initr_mem,
+#endif
+#ifdef CONFIG_PS2KBD
+	initr_kbd,
+#endif
+#ifdef CONFIG_MODEM_SUPPORT
+	initr_modem,
+#endif
 	run_main_loop,
 };
 
diff --git a/include/common.h b/include/common.h
index 64e340a..c81814b 100644
--- a/include/common.h
+++ b/include/common.h
@@ -311,6 +311,7 @@  int mac_read_from_eeprom(void);
 extern u8 _binary_dt_dtb_start[];	/* embedded device tree blob */
 int set_cpu_clk_info(void);
 int print_cpuinfo(void);
+int update_flash_size(int flash_size);
 
 /**
  * Show the DRAM size in a board-specific way
diff --git a/include/ide.h b/include/ide.h
index 158e1be..afea85c 100644
--- a/include/ide.h
+++ b/include/ide.h
@@ -85,4 +85,11 @@  void ide_output_data(int dev, const ulong *sect_buf, int words);
 void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts);
 void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts);
 
+/**
+ * board_start_ide() - Start up the board IDE interfac
+ *
+ * @return 0 if ok
+ */
+int board_start_ide(void);
+
 #endif /* _IDE_H */