This adds ppc features to the generic pre-relocation board init.
This is a separate commit so that these features are clearly shown.
Signed-off-by: Simon Glass sjg@chromium.org --- Changes in v11: - Add possible fix for PPC stack alignment problem
Changes in v10: None Changes in v9: None Changes in v8: None Changes in v7: None Changes in v6: - Tidy up stack reservation code to separate out PowerPC
Changes in v5: - Use watchdog.h for watchdog functions - Add define to work around __bss_end / __bss_end__ confusion
Changes in v4: - Updates to sit on top of earlier patches
Changes in v3: None Changes in v2: None
common/board_f.c | 334 ++++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 332 insertions(+), 2 deletions(-)
diff --git a/common/board_f.c b/common/board_f.c index b625ccb..1721eed 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -31,10 +31,31 @@ #include <version.h> #include <environment.h> #include <fdtdec.h> +#if defined(CONFIG_CMD_IDE) +#include <ide.h> +#endif +#include <i2c.h> #include <initcall.h> #include <logbuff.h> + +/* TODO: Can we move these into arch/ headers? */ +#ifdef CONFIG_8xx +#include <mpc8xx.h> +#endif +#ifdef CONFIG_5xx +#include <mpc5xx.h> +#endif +#ifdef CONFIG_MPC5xxx +#include <mpc5xxx.h> +#endif + #include <post.h> +#include <spi.h> +#include <watchdog.h> #include <asm/io.h> +#ifdef CONFIG_MP +#include <asm/mp.h> +#endif #include <asm/sections.h> #include <linux/compiler.h>
@@ -97,6 +118,31 @@ void blue_led_off(void) __attribute__((weak, alias("__blue_led_off"))); * Could the CONFIG_SPL_BUILD infection become a flag in gd? */
+#if defined(CONFIG_WATCHDOG) +static int init_func_watchdog_init(void) +{ + puts(" Watchdog enabled\n"); + WATCHDOG_RESET(); + + return 0; +} + +int init_func_watchdog_reset(void) +{ + WATCHDOG_RESET(); + + return 0; +} +#endif /* CONFIG_WATCHDOG */ + +void __board_add_ram_info(int use_default) +{ + /* please define platform specific board_add_ram_info() */ +} + +void board_add_ram_info(int) + __attribute__ ((weak, alias("__board_add_ram_info"))); + static int init_baud_rate(void) { gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE); @@ -134,6 +180,25 @@ static int announce_dram_init(void) return 0; }
+#ifdef CONFIG_PPC +static int init_func_ram(void) +{ +#ifdef CONFIG_BOARD_TYPES + int board_type = gd->board_type; +#else + int board_type = 0; /* use dummy arg */ +#endif + + gd->ram_size = initdram(board_type); + + if (gd->ram_size > 0) + return 0; + + puts("*** failed ***\n"); + return 1; +} +#endif + static int show_dram_config(void) { ulong size; @@ -154,11 +219,24 @@ static int show_dram_config(void) size = gd->ram_size; #endif
- print_size(size, "\n"); + print_size(size, ""); + board_add_ram_info(0); + putc('\n');
return 0; }
+ulong get_effective_memsize(void) +{ +#ifndef CONFIG_VERY_BIG_RAM + return gd->ram_size; +#else + /* limit stack to what we can reasonable map */ + return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ? + CONFIG_MAX_MEM_MAPPED : gd->ram_size); +#endif +} + void __dram_init_banksize(void) { #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE) @@ -170,6 +248,27 @@ void __dram_init_banksize(void) void dram_init_banksize(void) __attribute__((weak, alias("__dram_init_banksize")));
+#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) +static int init_func_i2c(void) +{ + puts("I2C: "); + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + puts("ready\n"); + return 0; +} +#endif + +#if defined(CONFIG_HARD_SPI) +static int init_func_spi(void) +{ + puts("SPI: "); + spi_init(); + puts("ready\n"); + return 0; +} +#endif + +__maybe_unused static int zero_global_data(void) { memset((void *)gd, '\0', sizeof(gd_t)); @@ -182,7 +281,8 @@ static int setup_mon_len(void) #ifdef CONFIG_SYS_SYM_OFFSETS gd->mon_len = _bss_end_ofs; #else - gd->mon_len = (ulong)&__bss_end - (ulong)&__text_start; + /* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */ + gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE; #endif return 0; } @@ -240,9 +340,20 @@ static int setup_dest_addr(void) #ifdef CONFIG_SYS_SDRAM_BASE gd->ram_top = CONFIG_SYS_SDRAM_BASE; #endif + gd->ram_top += get_effective_memsize(); gd->ram_top = board_get_usable_ram_top(gd->mon_len); gd->dest_addr = gd->ram_top; debug("Ram top: %08lX\n", (ulong)gd->ram_top); +#if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500)) + /* + * We need to make sure the location we intend to put secondary core + * boot code is reserved and not used by any part of u-boot + */ + if (gd->dest_addr > determine_mp_bootpg(NULL)) { + gd->dest_addr = determine_mp_bootpg(NULL); + debug("Reserving MP boot page to %08lx\n", gd->dest_addr); + } +#endif gd->dest_addr_sp = gd->dest_addr; return 0; } @@ -311,6 +422,18 @@ static int reserve_lcd(void) } #endif /* CONFIG_LCD */
+#if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \ + && !defined(CONFIG_ARM) +static int reserve_video(void) +{ + /* reserve memory for video display (always full pages) */ + gd->dest_addr = video_setmem(gd->dest_addr); + gd->fb_base = gd->dest_addr; + + return 0; +} +#endif + static int reserve_uboot(void) { /* @@ -319,6 +442,10 @@ static int reserve_uboot(void) */ gd->dest_addr -= gd->mon_len; gd->dest_addr &= ~(4096 - 1); +#ifdef CONFIG_E500 + /* round down to next 64 kB limit so that IVPR stays aligned */ + gd->dest_addr &= ~(65536 - 1); +#endif
debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, gd->dest_addr); @@ -391,6 +518,9 @@ static int reserve_stacks(void) gd->irq_sp = gd->dest_addr_sp; # endif #else +# ifdef CONFIG_PPC + ulong *s; +# endif
/* setup stack pointer for exceptions */ gd->dest_addr_sp -= 16; @@ -413,6 +543,11 @@ static int reserve_stacks(void) # endif /* leave 3 words for abort-stack, plus 1 for alignment */ gd->dest_addr_sp -= 16; +# elif defined(CONFIG_PPC) + /* Clear initial stack frame */ + s = (ulong *) gd->dest_addr_sp; + *s = 0; /* Terminate back chain */ + *++s = 0; /* NULL return address */ # endif /* Architecture specific code */
return 0; @@ -426,6 +561,106 @@ static int display_new_sp(void) return 0; }
+#ifdef CONFIG_PPC +static int setup_board_part1(void) +{ + bd_t *bd = gd->bd; + + /* + * Save local variables to board info struct + */ + + bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of memory */ + bd->bi_memsize = gd->ram_size; /* size in bytes */ + +#ifdef CONFIG_SYS_SRAM_BASE + bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM */ + bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM */ +#endif + +#if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \ + defined(CONFIG_E500) || defined(CONFIG_MPC86xx) + bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */ +#endif +#if defined(CONFIG_MPC5xxx) + bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ +#endif +#if defined(CONFIG_MPC83xx) + bd->bi_immrbar = CONFIG_SYS_IMMR; +#endif +#if defined(CONFIG_MPC8220) + bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ + bd->bi_inpfreq = gd->arch.inp_clk; + bd->bi_pcifreq = gd->pci_clk; + bd->bi_vcofreq = gd->arch.vco_clk; + bd->bi_pevfreq = gd->arch.pev_clk; + bd->bi_flbfreq = gd->arch.flb_clk; + + /* store bootparam to sram (backward compatible), here? */ + { + u32 *sram = (u32 *) CONFIG_SYS_SRAM_BASE; + + *sram++ = gd->ram_size; + *sram++ = gd->bus_clk; + *sram++ = gd->arch.inp_clk; + *sram++ = gd->cpu_clk; + *sram++ = gd->arch.vco_clk; + *sram++ = gd->arch.flb_clk; + *sram++ = 0xb8c3ba11; /* boot signature */ + } +#endif + + return 0; +} + +static int setup_board_part2(void) +{ + bd_t *bd = gd->bd; + + bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */ + bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */ +#if defined(CONFIG_CPM2) + bd->bi_cpmfreq = gd->arch.cpm_clk; + bd->bi_brgfreq = gd->arch.brg_clk; + bd->bi_sccfreq = gd->arch.scc_clk; + bd->bi_vco = gd->arch.vco_out; +#endif /* CONFIG_CPM2 */ +#if defined(CONFIG_MPC512X) + bd->bi_ipsfreq = gd->arch.ips_clk; +#endif /* CONFIG_MPC512X */ +#if defined(CONFIG_MPC5xxx) + bd->bi_ipbfreq = gd->arch.ipb_clk; + bd->bi_pcifreq = gd->pci_clk; +#endif /* CONFIG_MPC5xxx */ + + return 0; +} +#endif + +#ifdef CONFIG_SYS_EXTBDINFO +static int setup_board_extra(void) +{ + bd_t *bd = gd->bd; + + strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version)); + strncpy((char *) bd->bi_r_version, U_BOOT_VERSION, + sizeof(bd->bi_r_version)); + + bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */ + bd->bi_plb_busfreq = gd->bus_clk; +#if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \ + defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ + defined(CONFIG_440EPX) || defined(CONFIG_440GRX) + bd->bi_pci_busfreq = get_PCI_freq(); + bd->bi_opbfreq = get_OPB_freq(); +#elif defined(CONFIG_XILINX_405) + bd->bi_pci_busfreq = get_PCI_freq(); +#endif + + return 0; +} +#endif + #ifdef CONFIG_POST static int init_post(void) { @@ -496,9 +731,17 @@ static int mark_bootstage(void) }
static init_fnc_t init_sequence_f[] = { +#if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \ + !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \ + !defined(CONFIG_MPC86xx) zero_global_data, +#endif setup_fdt, setup_mon_len, +#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) + /* TODO: can this go into arch_cpu_init()? */ + probecpu, +#endif arch_cpu_init, /* basic arch cpu dependent setup */ mark_bootstage, #ifdef CONFIG_OF_CONTROL @@ -507,33 +750,106 @@ static init_fnc_t init_sequence_f[] = { #if defined(CONFIG_BOARD_EARLY_INIT_F) board_early_init_f, #endif + /* TODO: can any of this go into arch_cpu_init()? */ +#if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT) + get_clocks, /* get CPU and bus clocks (etc.) */ +#if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \ + && !defined(CONFIG_TQM885D) + adjust_sdram_tbs_8xx, +#endif + /* TODO: can we rename this to timer_init()? */ + init_timebase, +#endif +#if defined(CONFIG_BOARD_EARLY_INIT_F) + board_early_init_f, +#endif +#ifdef CONFIG_ARM timer_init, /* initialize timer */ +#endif #ifdef CONFIG_BOARD_POSTCLK_INIT board_postclk_init, #endif #ifdef CONFIG_FSL_ESDHC get_clocks, #endif +#ifdef CONFIG_SYS_ALLOC_DPRAM +#if !defined(CONFIG_CPM2) + dpram_init, +#endif +#endif +#if defined(CONFIG_BOARD_POSTCLK_INIT) + board_postclk_init, +#endif env_init, /* initialize environment */ +#if defined(CONFIG_8xx_CPUCLK_DEFAULT) + /* get CPU and bus clocks according to the environment variable */ + get_clocks_866, + /* adjust sdram refresh rate according to the new clock */ + sdram_adjust_866, + init_timebase, +#endif init_baud_rate, /* initialze baudrate settings */ serial_init, /* serial communications setup */ console_init_f, /* stage 1 init of console */ display_options, /* say that we are here */ display_text_info, /* show debugging info if required */ +#if defined(CONFIG_8260) + prt_8260_rsr, + prt_8260_clks, +#endif /* CONFIG_8260 */ +#if defined(CONFIG_MPC83xx) + prt_83xx_rsr, +#endif +#ifdef CONFIG_PPC + checkcpu, +#endif #if defined(CONFIG_DISPLAY_CPUINFO) print_cpuinfo, /* display cpu info (and speed) */ #endif +#if defined(CONFIG_MPC5xxx) + prt_mpc5xxx_clks, +#endif /* CONFIG_MPC5xxx */ +#if defined(CONFIG_MPC8220) + prt_mpc8220_clks, +#endif #if defined(CONFIG_DISPLAY_BOARDINFO) checkboard, /* display board info */ #endif + INIT_FUNC_WATCHDOG_INIT +#if defined(CONFIG_MISC_INIT_F) + misc_init_f, +#endif + INIT_FUNC_WATCHDOG_RESET +#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) + init_func_i2c, +#endif +#if defined(CONFIG_HARD_SPI) + init_func_spi, +#endif +#ifdef CONFIG_X86 + dram_init_f, /* configure available RAM banks */ +#endif announce_dram_init, /* TODO: unify all these dram functions? */ #ifdef CONFIG_ARM dram_init, /* configure available RAM banks */ #endif +#ifdef CONFIG_PPC + init_func_ram, +#endif +#ifdef CONFIG_POST + post_init_f, +#endif + INIT_FUNC_WATCHDOG_RESET +#if defined(CONFIG_SYS_DRAM_TEST) + testdram, +#endif /* CONFIG_SYS_DRAM_TEST */ + INIT_FUNC_WATCHDOG_RESET + #ifdef CONFIG_POST init_post, #endif + INIT_FUNC_WATCHDOG_RESET /* * Now that we have DRAM mapped and working, we can * relocate the code and continue running from DRAM. @@ -561,6 +877,11 @@ static init_fnc_t init_sequence_f[] = { #ifdef CONFIG_LCD reserve_lcd, #endif + /* TODO: Why the dependency on CONFIG_8xx? */ +#if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \ + && !defined(CONFIG_ARM) + reserve_video, +#endif reserve_uboot, #ifndef CONFIG_SPL_BUILD reserve_malloc, @@ -572,8 +893,17 @@ static init_fnc_t init_sequence_f[] = { reserve_stacks, setup_dram_config, show_dram_config, +#ifdef CONFIG_PPC + setup_board_part1, + INIT_FUNC_WATCHDOG_RESET + setup_board_part2, +#endif setup_baud_rate, display_new_sp, +#ifdef CONFIG_SYS_EXTBDINFO + setup_board_extra, +#endif + INIT_FUNC_WATCHDOG_RESET reloc_fdt, setup_reloc, #ifndef CONFIG_ARM