[U-Boot] [PATCH v4 24/27] Adjust board_r.c for PowerPC
Simon Glass
sjg at chromium.org
Thu Mar 15 03:16:21 CET 2012
This adds ppc features to the generic post-relocation board init.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
Changes in v4:
- Updates to sit on top of earlier patches
common/board_r.c | 462 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 459 insertions(+), 3 deletions(-)
diff --git a/common/board_r.c b/common/board_r.c
index f587c03..19d162b 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -27,24 +27,84 @@
*/
#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>
+#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>
DECLARE_GLOBAL_DATA_PTR;
ulong monitor_flash_len;
+/* TODO: Move this prototype to a header? */
+#ifdef CONFIG_SYS_UPDATE_FLASH_SIZE
+extern int update_flash_size(int flash_size);
+#endif
+
+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)
{
@@ -73,6 +133,25 @@ 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->cpu += gd->dest_addr - CONFIG_SYS_MONITOR_BASE;
+#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;
}
#ifdef CONFIG_SERIAL_MULTI
@@ -83,6 +162,27 @@ static int initr_serial(void)
}
#endif
+#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 +204,50 @@ 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;
@@ -123,13 +267,26 @@ 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, "");
@@ -152,6 +309,40 @@ static int initr_flash(void)
}
#endif /* CONFIG_SYS_FLASH_CHECKSUM */
putc('\n');
+
+ /* 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
@@ -216,9 +407,56 @@ static int initr_env(void)
copy_filename(BootFile, s, sizeof(BootFile));
}
#endif
+#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();
@@ -246,6 +484,8 @@ static int initr_enable_interrupts(void)
#ifdef CONFIG_CMD_NET
static int initr_ethaddr(void)
{
+ bd_t *bd = gd->bd;
+
#if defined(CONFIG_DRIVER_SMC91111) || defined(CONFIG_DRIVER_LAN91C96)
/* Perform network card initialisation if necessary */
/* XXX: this needs to be moved to board init */
@@ -257,11 +497,63 @@ static int initr_ethaddr(void)
smc_set_mac_addr(enetaddr);
}
#endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */
+ /* 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)
{
@@ -291,6 +583,33 @@ 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
@@ -310,6 +629,37 @@ 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
@@ -327,9 +677,12 @@ 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 */
@@ -339,16 +692,51 @@ init_fnc_t init_sequence_r[] = {
initr_serial,
#endif
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,
#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
@@ -362,6 +750,24 @@ 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
@@ -374,23 +780,73 @@ 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,
};
--
1.7.7.3
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