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 <s...@chromium.org>
---
common/board_f.c | 373 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
include/common.h | 16 +++
2 files changed, 386 insertions(+), 3 deletions(-)
diff --git a/common/board_f.c b/common/board_f.c
index af3163b..b06e8d4 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -31,10 +31,31 @@
#include <version.h>
#include <asm-generic/sections.h>
#include <asm/io.h>
+#ifdef CONFIG_MP
+#include <asm/mp.h>
+#endif
#include <environment.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>
/*
* Pointer to initial global data area
@@ -98,6 +119,34 @@ 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;
+}
+
+#define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
+
+int init_func_watchdog_reset(void)
+{
+ WATCHDOG_RESET();
+ return 0;
+}
+
+#else
+#define INIT_FUNC_WATCHDOG_INIT
+#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);
@@ -135,6 +184,25 @@ 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 display_dram_config(void)
{
ulong size;
@@ -155,11 +223,24 @@ static int display_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)
@@ -171,10 +252,37 @@ 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
+
static int setup_global_data_ptr(void)
{
- /* Pointer is writable since we allocated a register for it */
+ /*
+ * Pointer is writable since we allocated a register for it.
+ * Can we choose one of these two methods instead of offering both?
+ */
+#ifdef CONFIG_SYS_INIT_SP_ADDR
gd = (gd_t *) ((CONFIG_SYS_INIT_SP_ADDR) & ~0x07);
+#else
+ gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
+#endif
/* compiler optimization barrier needed for GCC >= 3.4 */
dmb();
@@ -182,6 +290,7 @@ static int setup_global_data_ptr(void)
return 0;
}
+__maybe_unused
static int zero_global_data(void)
{
memset((void *)gd, '\0', sizeof(gd_t));
@@ -194,7 +303,8 @@ 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;
}
@@ -234,7 +344,22 @@ static int setup_reloc(void)
*/
gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
#endif
+#ifdef CONFIG_NR_DRAM_BANKS
gd->dest_addr = gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size;
+#else
+ gd->dest_addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize();
+#endif
+ gd->ram_top = gd->dest_addr;
+#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()) {
+ gd->dest_addr = determine_mp_bootpg();
+ debug("Reserving MP boot page to %08lx\n", gd->dest_addr);
+ }
+#endif
gd->dest_addr_sp = gd->dest_addr;
return 0;
}
@@ -300,6 +425,19 @@ static int reserve_lcd(void)
}
#endif /* CONFIG_LCD */
+/* TODO: We should be able to just use CONFIG_VIDEO here */
+#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)
{
/*
@@ -308,6 +446,10 @@ 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);
@@ -356,7 +498,13 @@ static int reserve_global_data(void)
#ifndef CONFIG_SPL_BUILD
static int reserve_stacks(void)
{
+#ifdef CONFIG_PPC
+ ulong *s;
+#endif
+
/* setup stack pointer for exceptions */
+ gd->dest_addr_sp -= 16;
+ gd->dest_addr_sp &= ~0xf;
gd->irq_sp = gd->dest_addr_sp;
#ifdef CONFIG_USE_IRQ
gd->dest_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
@@ -369,6 +517,14 @@ static int reserve_stacks(void)
/* leave 3 words for abort-stack, plus 1 for alignment */
gd->dest_addr_sp -= 16;
+#ifdef CONFIG_PPC
+ /* Clear initial stack frame */
+ s = (ulong *) gd->dest_addr_sp;
+ *s-- = 0;
+ *s-- = 0;
+ gd->dest_addr_sp = (ulong) s;
+#endif
+
return 0;
}
#endif
@@ -390,6 +546,106 @@ 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->inp_clk;
+ bd->bi_pcifreq = gd->pci_clk;
+ bd->bi_vcofreq = gd->vco_clk;
+ bd->bi_pevfreq = gd->pev_clk;
+ bd->bi_flbfreq = gd->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->inp_clk;
+ *sram++ = gd->cpu_clk;
+ *sram++ = gd->vco_clk;
+ *sram++ = gd->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->cpm_clk;
+ bd->bi_brgfreq = gd->brg_clk;
+ bd->bi_sccfreq = gd->scc_clk;
+ bd->bi_vco = gd->vco_out;
+#endif /* CONFIG_CPM2 */
+#if defined(CONFIG_MPC512X)
+ bd->bi_ipsfreq = gd->ips_clk;
+#endif /* CONFIG_MPC512X */
+#if defined(CONFIG_MPC5xxx)
+ bd->bi_ipbfreq = gd->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)
{
@@ -432,9 +688,17 @@ static int jump_to_copy(void)
static init_fnc_t init_sequence_f[] = {
setup_global_data_ptr,
+#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
#if defined(CONFIG_ARCH_CPU_INIT)
arch_cpu_init, /* basic arch cpu dependent setup */
#endif
@@ -444,30 +708,119 @@ 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_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
announce_dram_init,
+ /* TODO: unify all these dram functions? */
+#ifdef CONFIG_ARM
dram_init, /* configure available RAM banks */
setup_dram_config,
+#endif
+#ifdef CONFIG_X86
+ dram_init_f, /* configure available RAM banks */
+#endif
+#ifdef CONFIG_PPC
+ init_func_ram,
+#endif
display_dram_config,
#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
setup_dram_config,
+
+ /*
+ * Now that we have DRAM mapped and working, we can
+ * relocate the code and continue running from DRAM.
+ *
+ * Reserve memory at end of RAM for (top down in that order):
+ * - area that won't get touched by U-Boot and Linux (optional)
+ * - kernel log buffer
+ * - protected RAM
+ * - LCD framebuffer
+ * - monitor code
+ * - board info struct
+ */
setup_reloc,
#if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
reserve_logbuffer,
@@ -482,6 +835,11 @@ 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,
@@ -494,8 +852,17 @@ static init_fnc_t init_sequence_f[] = {
#else
reserve_stacks,
#endif
+#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
jump_to_copy,
NULL,
};
diff --git a/include/common.h b/include/common.h
index a2c6b27..9b0d81d 100644
--- a/include/common.h
+++ b/include/common.h
@@ -287,6 +287,22 @@ int mac_read_from_eeprom(void);
extern u8 _binary_dt_dtb_start[]; /* embedded device tree blob */
int set_cpu_clk_info(void);
+#ifdef CONFIG_SYS_GENERIC_BOARD
+/*
+ * Reset the watchdog timer, always returns 0
+ *
+ * This function is here since it is shared between board_f() and board_r().
+ */
+int init_func_watchdog_reset(void);
+#endif
+
+#if defined(CONFIG_WATCHDOG)
+#define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
+#else
+#define INIT_FUNC_WATCHDOG_RESET /* undef */
+#endif /* CONFIG_WATCHDOG */
+
+
/*
* Called when console output is requested before the console is available.
* The board should do its best to get the character out to the user any way
--
1.7.7.3
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