[U-Boot] [PATCH v5 16/23] Adjust board_f.c for ppc
Simon Glass
sjg at chromium.org
Fri Feb 8 16:12:12 CET 2013
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 at chromium.org>
---
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 | 347 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 345 insertions(+), 2 deletions(-)
diff --git a/common/board_f.c b/common/board_f.c
index db3ef0a..4dfac6e 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;
}
@@ -237,9 +337,23 @@ static int setup_dest_addr(void)
*/
gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
#endif
+#ifdef CONFIG_NR_DRAM_BANKS
gd->ram_top = gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size;
+#else
+ gd->ram_top = CONFIG_SYS_SDRAM_BASE + get_effective_memsize();
+#endif
gd->ram_top = board_get_usable_ram_top(gd->mon_len);
gd->dest_addr = 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;
}
@@ -308,6 +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)
{
/*
@@ -316,6 +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);
@@ -383,6 +513,10 @@ static int reserve_fdt(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;
@@ -398,6 +532,14 @@ 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; /* Terminate back chain */
+ *++s = 0; /* NULL return address */
+ gd->dest_addr_sp = (ulong) s;
+#endif
+
return 0;
}
#endif
@@ -419,6 +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)
{
@@ -489,9 +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
@@ -500,31 +750,110 @@ 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 */
+ setup_dram_config,
+#endif
+#ifdef CONFIG_PPC
+ init_func_ram,
+#endif
show_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.
@@ -552,6 +881,11 @@ 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,
@@ -565,8 +899,17 @@ 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
reloc_fdt,
setup_reloc,
#ifndef CONFIG_ARM
--
1.8.1
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