Introduces CONFIG_SPL_RELOC_TEXT_BASE and CONFIG_SPL_RELOC_STACK.
Signed-off-by: Scott Wood scottwood@freescale.com Cc: Andy Fleming afleming@gmail.com --- README | 9 ++ board/freescale/p1_p2_rdb_pc/Makefile | 16 ++++ board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c | 2 +- board/freescale/p1_p2_rdb_pc/spl_minimal.c | 131 +++++++++++++++++++++++++++ board/freescale/p1_p2_rdb_pc/tlb.c | 7 +- 5 files changed, 160 insertions(+), 5 deletions(-) create mode 100644 board/freescale/p1_p2_rdb_pc/spl_minimal.c
diff --git a/README b/README index 5c6a467..8e07d41 100644 --- a/README +++ b/README @@ -2574,6 +2574,10 @@ FIT uImage format: CONFIG_SPL_TEXT_BASE TEXT_BASE for linking the SPL binary.
+ CONFIG_SPL_RELOC_TEXT_BASE + Address to relocate to. If unspecified, this is equal to + CONFIG_SPL_TEXT_BASE (i.e. no relocation is done). + CONFIG_SPL_BSS_START_ADDR Link address for the BSS within the SPL binary.
@@ -2583,6 +2587,11 @@ FIT uImage format: CONFIG_SPL_STACK Adress of the start of the stack SPL will use
+ CONFIG_SPL_RELOC_STACK + Adress of the start of the stack SPL will use after + relocation. If unspecified, this is equal to + CONFIG_SPL_STACK. + CONFIG_SYS_SPL_MALLOC_START Starting address of the malloc pool used in SPL.
diff --git a/board/freescale/p1_p2_rdb_pc/Makefile b/board/freescale/p1_p2_rdb_pc/Makefile index 0dcf7d1..5b45d72 100644 --- a/board/freescale/p1_p2_rdb_pc/Makefile +++ b/board/freescale/p1_p2_rdb_pc/Makefile @@ -24,11 +24,27 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).o
+MINIMAL= + +ifdef CONFIG_SPL_BUILD +ifdef CONFIG_SPL_INIT_MINIMAL +MINIMAL=y +endif +endif + +ifdef MINIMAL + +COBJS-y += spl_minimal.o tlb.o law.o + +else + COBJS-y += $(BOARD).o COBJS-y += ddr.o COBJS-y += law.o COBJS-y += tlb.o
+endif + SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(COBJS-y)) SOBJS := $(addprefix $(obj),$(SOBJS)) diff --git a/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c b/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c index aa39260..5b5b86c 100644 --- a/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c +++ b/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c @@ -177,7 +177,7 @@ void board_gpio_init(void) */
setbits_be32(&pgpio->gpdir, 0x02130000); -#ifndef CONFIG_SYS_RAMBOOT +#if !defined(CONFIG_SYS_RAMBOOT) && !defined(CONFIG_SPL) /* init DDR3 reset signal */ setbits_be32(&pgpio->gpdir, 0x00200000); setbits_be32(&pgpio->gpodr, 0x00200000); diff --git a/board/freescale/p1_p2_rdb_pc/spl_minimal.c b/board/freescale/p1_p2_rdb_pc/spl_minimal.c new file mode 100644 index 0000000..5c893ee --- /dev/null +++ b/board/freescale/p1_p2_rdb_pc/spl_minimal.c @@ -0,0 +1,131 @@ +/* + * Copyright 2011 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +#include <common.h> +#include <ns16550.h> +#include <asm/io.h> +#include <nand.h> +#include <asm/fsl_law.h> +#include <asm/fsl_ddr_sdram.h> +#include <asm/global_data.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Fixed sdram init -- doesn't use serial presence detect. + */ +void sdram_init(void) +{ + ccsr_ddr_t *ddr = (ccsr_ddr_t *)CONFIG_SYS_MPC85xx_DDR_ADDR; + + __raw_writel(CONFIG_SYS_DDR_CS0_BNDS, &ddr->cs0_bnds); + __raw_writel(CONFIG_SYS_DDR_CS0_CONFIG, &ddr->cs0_config); +#if CONFIG_CHIP_SELECTS_PER_CTRL > 1 + __raw_writel(CONFIG_SYS_DDR_CS1_BNDS, &ddr->cs1_bnds); + __raw_writel(CONFIG_SYS_DDR_CS1_CONFIG, &ddr->cs1_config); +#endif + __raw_writel(CONFIG_SYS_DDR_TIMING_3, &ddr->timing_cfg_3); + __raw_writel(CONFIG_SYS_DDR_TIMING_0, &ddr->timing_cfg_0); + __raw_writel(CONFIG_SYS_DDR_TIMING_1, &ddr->timing_cfg_1); + __raw_writel(CONFIG_SYS_DDR_TIMING_2, &ddr->timing_cfg_2); + + __raw_writel(CONFIG_SYS_DDR_CONTROL_2, &ddr->sdram_cfg_2); + __raw_writel(CONFIG_SYS_DDR_MODE_1, &ddr->sdram_mode); + __raw_writel(CONFIG_SYS_DDR_MODE_2, &ddr->sdram_mode_2); + + __raw_writel(CONFIG_SYS_DDR_INTERVAL, &ddr->sdram_interval); + __raw_writel(CONFIG_SYS_DDR_DATA_INIT, &ddr->sdram_data_init); + __raw_writel(CONFIG_SYS_DDR_CLK_CTRL, &ddr->sdram_clk_cntl); + + __raw_writel(CONFIG_SYS_DDR_TIMING_4, &ddr->timing_cfg_4); + __raw_writel(CONFIG_SYS_DDR_TIMING_5, &ddr->timing_cfg_5); + __raw_writel(CONFIG_SYS_DDR_ZQ_CONTROL, &ddr->ddr_zq_cntl); + __raw_writel(CONFIG_SYS_DDR_WRLVL_CONTROL, &ddr->ddr_wrlvl_cntl); + + /* Set, but do not enable the memory */ + __raw_writel(CONFIG_SYS_DDR_CONTROL & ~SDRAM_CFG_MEM_EN, &ddr->sdram_cfg); + + asm volatile("sync;isync"); + udelay(500); + + /* Let the controller go */ + out_be32(&ddr->sdram_cfg, in_be32(&ddr->sdram_cfg) | SDRAM_CFG_MEM_EN); + + set_next_law(0, CONFIG_SYS_SDRAM_SIZE_LAW, LAW_TRGT_IF_DDR_1); +} + +void board_init_f(ulong bootflag) +{ + u32 plat_ratio; + ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; +#ifndef CONFIG_QE + ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR); +#endif + + /* initialize selected port with appropriate baud rate */ + plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO; + plat_ratio >>= 1; + gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio; + + NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1, + gd->bus_clk / 16 / CONFIG_BAUDRATE); + + puts("\nNAND boot... "); + +#ifndef CONFIG_QE + /* init DDR3 reset signal */ + __raw_writel(0x02000000, &pgpio->gpdir); + __raw_writel(0x00200000, &pgpio->gpodr); + __raw_writel(0x00000000, &pgpio->gpdat); + udelay(1000); + __raw_writel(0x00200000, &pgpio->gpdat); + udelay(1000); + __raw_writel(0x00000000, &pgpio->gpdir); +#endif + + /* Initialize the DDR3 */ + sdram_init(); + + /* copy code to RAM and jump to it - this should not return */ + /* NOTE - code has to be copied out of NAND buffer before + * other blocks can be read. + */ + relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE); +} + +void board_init_r(gd_t *gd, ulong dest_addr) +{ + nand_boot(); +} + +void putc(char c) +{ + if (c == '\n') + NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r'); + + NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c); +} + +void puts(const char *str) +{ + while (*str) + putc(*str++); +} diff --git a/board/freescale/p1_p2_rdb_pc/tlb.c b/board/freescale/p1_p2_rdb_pc/tlb.c index 6d22463..0873dd7 100644 --- a/board/freescale/p1_p2_rdb_pc/tlb.c +++ b/board/freescale/p1_p2_rdb_pc/tlb.c @@ -53,7 +53,7 @@ struct fsl_e_tlb_entry tlb_table[] = { MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, 0, 1, BOOKE_PAGESZ_1M, 1),
-#ifndef CONFIG_NAND_SPL +#ifndef CONFIG_SPL_BUILD /* W**G* - Flash/promjet, localbus */ /* This will be changed to *I*G* after relocation to RAM. */ SET_TLB_ENTRY(1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE_PHYS, @@ -85,7 +85,7 @@ struct fsl_e_tlb_entry tlb_table[] = { SET_TLB_ENTRY(1, CONFIG_SYS_PMC_BASE, CONFIG_SYS_PMC_BASE_PHYS, MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, 0, 10, BOOKE_PAGESZ_64K, 1), -#endif +#endif /* not SPL */
#ifdef CONFIG_SYS_NAND_BASE /* *I*G - NAND */ @@ -94,7 +94,7 @@ struct fsl_e_tlb_entry tlb_table[] = { 0, 7, BOOKE_PAGESZ_1M, 1), #endif
-#ifdef CONFIG_SYS_RAMBOOT +#if defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_SPL) /* *I*G - eSDHC/eSPI/NAND boot */ SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE, MAS3_SX|MAS3_SW|MAS3_SR, 0, @@ -108,7 +108,6 @@ struct fsl_e_tlb_entry tlb_table[] = { 0, 9, BOOKE_PAGESZ_1G, 1), #endif #endif - };
int num_tlb_entries = ARRAY_SIZE(tlb_table);