Signed-off-by: Magnus Lilja lilja.magnus@gmail.com ---
Applies to arm-master. Changes since v4: Fixed comments received from Jean-Christophe.
MAKEALL | 1 + Makefile | 12 +++- board/freescale/mx31pdk/config.mk | 4 + board/freescale/mx31pdk/lowlevel_init.S | 93 +++++++++++++++++++++++++++ include/asm-arm/arch-mx31/mx31-regs.h | 54 +++++++++++++++ include/configs/mx31pdk.h | 43 ++++++++++++- nand_spl/board/freescale/mx31pdk/Makefile | 54 +++++++++++++++ nand_spl/board/freescale/mx31pdk/config.mk | 1 + nand_spl/board/freescale/mx31pdk/u-boot.lds | 36 ++++++++++ 9 files changed, 293 insertions(+), 5 deletions(-) create mode 100644 board/freescale/mx31pdk/lowlevel_init.S create mode 100644 nand_spl/board/freescale/mx31pdk/Makefile create mode 100644 nand_spl/board/freescale/mx31pdk/config.mk create mode 100644 nand_spl/board/freescale/mx31pdk/u-boot.lds
diff --git a/MAKEALL b/MAKEALL index e6f6c14..f2d3b6f 100755 --- a/MAKEALL +++ b/MAKEALL @@ -555,6 +555,7 @@ LIST_ARM11=" \ imx31_phycore_eet \ mx31ads \ mx31pdk \ + mx31pdk_nand \ qong \ smdk6400 \ " diff --git a/Makefile b/Makefile index d486b55..763a202 100644 --- a/Makefile +++ b/Makefile @@ -3143,8 +3143,16 @@ imx31_phycore_config : unconfig mx31ads_config : unconfig @$(MKCONFIG) $(@:_config=) arm arm1136 mx31ads freescale mx31
-mx31pdk_config : unconfig - @$(MKCONFIG) $(@:_config=) arm arm1136 mx31pdk freescale mx31 +mx31pdk_config \ +mx31pdk_nand_config : unconfig + @mkdir -p $(obj)include + @if [ -n "$(findstring _nand_,$@)" ]; then \ + echo "#define CONFIG_NAND_U_BOOT" >> $(obj)include/config.h; \ + else \ + echo "#define CONFIG_SKIP_LOWLEVEL_INIT" >> $(obj)include/config.h; \ + echo "#define CONFIG_SKIP_RELOCATE_UBOOT" >> $(obj)include/config.h; \ + fi + @$(MKCONFIG) -a mx31pdk arm arm1136 mx31pdk freescale mx31
omap2420h4_config : unconfig @$(MKCONFIG) $(@:_config=) arm arm1136 omap2420h4 NULL omap24xx diff --git a/board/freescale/mx31pdk/config.mk b/board/freescale/mx31pdk/config.mk index d34dc02..dcaa09f 100644 --- a/board/freescale/mx31pdk/config.mk +++ b/board/freescale/mx31pdk/config.mk @@ -1 +1,5 @@ +ifdef CONFIG_NAND_SPL +TEXT_BASE = 0x87ec0000 +else TEXT_BASE = 0x87f00000 +endif diff --git a/board/freescale/mx31pdk/lowlevel_init.S b/board/freescale/mx31pdk/lowlevel_init.S new file mode 100644 index 0000000..cd0503e --- /dev/null +++ b/board/freescale/mx31pdk/lowlevel_init.S @@ -0,0 +1,93 @@ +/* + * (C) Copyright 2009 Magnus Lilja lilja.magnus@gmail.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 <config.h> +#include <asm/arch/mx31-regs.h> +#include <asm/macro.h> + +.globl lowlevel_init +lowlevel_init: + /* Also setup the Peripheral Port Remap register inside the core */ + ldr r0, =ARM_PPMRR /* start from AIPS 2GB region */ + mcr p15, 0, r0, c15, c2, 4 + + write32 IPU_CONF, IPU_CONF_DI_EN + write32 CCM_CCMR, CCM_CCMR_SETUP + + wait_timer 0x40000 + + write32 CCM_CCMR, CCM_CCMR_SETUP | CCMR_MPE + write32 CCM_CCMR, (CCM_CCMR_SETUP | CCMR_MPE) & ~CCMR_MDS + + /* Set up clock to 532MHz */ + write32 CCM_PDR0, CCM_PDR0_SETUP_532MHZ + write32 CCM_MPCTL, CCM_MPCTL_SETUP_532MHZ + + write32 CCM_SPCTL, PLL_PD(1) | PLL_MFD(4) | PLL_MFI(12) | PLL_MFN(1) + + /* Set up MX31 DDR pins */ + write32 IOMUXC_SW_PAD_CTL_SDCKE1_SDCLK_SDCLK_B, 0 + write32 IOMUXC_SW_PAD_CTL_CAS_SDWE_SDCKE0, 0 + write32 IOMUXC_SW_PAD_CTL_BCLK_RW_RAS, 0 + write32 IOMUXC_SW_PAD_CTL_CS2_CS3_CS4, 0x1000 + write32 IOMUXC_SW_PAD_CTL_DQM3_EB0_EB1, 0 + write32 IOMUXC_SW_PAD_CTL_DQM0_DQM1_DQM2, 0 + write32 IOMUXC_SW_PAD_CTL_SD29_SD30_SD31, 0 + write32 IOMUXC_SW_PAD_CTL_SD26_SD27_SD28, 0 + write32 IOMUXC_SW_PAD_CTL_SD23_SD24_SD25, 0 + write32 IOMUXC_SW_PAD_CTL_SD20_SD21_SD22, 0 + write32 IOMUXC_SW_PAD_CTL_SD17_SD18_SD19, 0 + write32 IOMUXC_SW_PAD_CTL_SD14_SD15_SD16, 0 + write32 IOMUXC_SW_PAD_CTL_SD11_SD12_SD13, 0 + write32 IOMUXC_SW_PAD_CTL_SD8_SD9_SD10, 0 + write32 IOMUXC_SW_PAD_CTL_SD5_SD6_SD7, 0 + write32 IOMUXC_SW_PAD_CTL_SD2_SD3_SD4, 0 + write32 IOMUXC_SW_PAD_CTL_SDBA0_SD0_SD1, 0 + write32 IOMUXC_SW_PAD_CTL_A24_A25_SDBA1, 0 + write32 IOMUXC_SW_PAD_CTL_A21_A22_A23, 0 + write32 IOMUXC_SW_PAD_CTL_A18_A19_A20, 0 + write32 IOMUXC_SW_PAD_CTL_A15_A16_A17, 0 + write32 IOMUXC_SW_PAD_CTL_A12_A13_A14, 0 + write32 IOMUXC_SW_PAD_CTL_A10_MA10_A11, 0 + write32 IOMUXC_SW_PAD_CTL_A7_A8_A9, 0 + write32 IOMUXC_SW_PAD_CTL_A4_A5_A6, 0 + write32 IOMUXC_SW_PAD_CTL_A1_A2_A3, 0 + write32 IOMUXC_SW_PAD_CTL_VPG0_VPG1_A0, 0 + + /* Set up MX31 DDR Memory Controller */ + write32 WEIM_ESDMISC, ESDMISC_MDDR_SETUP + write32 WEIM_ESDCFG0, ESDCFG0_MDDR_SETUP + + /* Perform DDR init sequence */ + write32 WEIM_ESDCTL0, ESDCTL_PRECHARGE + write32 CSD0_BASE | 0x0f00, 0x12344321 + write32 WEIM_ESDCTL0, ESDCTL_AUTOREFRESH + write32 CSD0_BASE, 0x12344321 + write32 CSD0_BASE, 0x12344321 + write32 WEIM_ESDCTL0, ESDCTL_LOADMODEREG + write8 CSD0_BASE | 0x00000033, 0xda + write8 CSD0_BASE | 0x01000000, 0xff + write32 WEIM_ESDCTL0, ESDCTL_RW + write32 CSD0_BASE, 0xDEADBEEF + write32 WEIM_ESDMISC, ESDMISC_MDDR_RESET_DL + + mov pc, lr diff --git a/include/asm-arm/arch-mx31/mx31-regs.h b/include/asm-arm/arch-mx31/mx31-regs.h index 76f4d53..51b02a2 100644 --- a/include/asm-arm/arch-mx31/mx31-regs.h +++ b/include/asm-arm/arch-mx31/mx31-regs.h @@ -61,6 +61,29 @@ #define PLL_MFI(x) (((x) & 0xf) << 10) #define PLL_MFN(x) (((x) & 0x3ff) << 0)
+#define WEIM_ESDCTL0 0xB8001000 +#define WEIM_ESDCFG0 0xB8001004 +#define WEIM_ESDCTL1 0xB8001008 +#define WEIM_ESDCFG1 0xB800100C +#define WEIM_ESDMISC 0xB8001010 + +#define ESDCTL_SDE (1 << 31) +#define ESDCTL_CMD_RW (0 << 28) +#define ESDCTL_CMD_PRECHARGE (1 << 28) +#define ESDCTL_CMD_AUTOREFRESH (2 << 28) +#define ESDCTL_CMD_LOADMODEREG (3 << 28) +#define ESDCTL_CMD_MANUALREFRESH (4 << 28) +#define ESDCTL_ROW_13 (2 << 24) +#define ESDCTL_ROW(x) ((x) << 24) +#define ESDCTL_COL_9 (1 << 20) +#define ESDCTL_COL(x) ((x) << 20) +#define ESDCTL_DSIZ(x) ((x) << 16) +#define ESDCTL_SREFR(x) ((x) << 13) +#define ESDCTL_PWDT(x) ((x) << 10) +#define ESDCTL_FP(x) ((x) << 8) +#define ESDCTL_BL(x) ((x) << 7) +#define ESDCTL_PRCT(x) ((x) << 0) + #define WEIM_BASE 0xb8002000 #define CSCR_U(x) (WEIM_BASE + (x) * 0x10) #define CSCR_L(x) (WEIM_BASE + 4 + (x) * 0x10) @@ -181,6 +204,37 @@ #define MUX_CSPI2_MOSI__I2C2_SCL IOMUX_MODE(MUX_CTL_CSPI2_MOSI, MUX_CTL_ALT1) #define MUX_CSPI2_MISO__I2C2_SDA IOMUX_MODE(MUX_CTL_CSPI2_MISO, MUX_CTL_ALT1)
+/* PAD control registers for SDR/DDR */ +#define IOMUXC_SW_PAD_CTL_SDCKE1_SDCLK_SDCLK_B (IOMUXC_BASE + 0x26C) +#define IOMUXC_SW_PAD_CTL_CAS_SDWE_SDCKE0 (IOMUXC_BASE + 0x270) +#define IOMUXC_SW_PAD_CTL_BCLK_RW_RAS (IOMUXC_BASE + 0x274) +#define IOMUXC_SW_PAD_CTL_CS5_ECB_LBA (IOMUXC_BASE + 0x278) +#define IOMUXC_SW_PAD_CTL_CS2_CS3_CS4 (IOMUXC_BASE + 0x27C) +#define IOMUXC_SW_PAD_CTL_OE_CS0_CS1 (IOMUXC_BASE + 0x280) +#define IOMUXC_SW_PAD_CTL_DQM3_EB0_EB1 (IOMUXC_BASE + 0x284) +#define IOMUXC_SW_PAD_CTL_DQM0_DQM1_DQM2 (IOMUXC_BASE + 0x288) +#define IOMUXC_SW_PAD_CTL_SD29_SD30_SD31 (IOMUXC_BASE + 0x28C) +#define IOMUXC_SW_PAD_CTL_SD26_SD27_SD28 (IOMUXC_BASE + 0x290) +#define IOMUXC_SW_PAD_CTL_SD23_SD24_SD25 (IOMUXC_BASE + 0x294) +#define IOMUXC_SW_PAD_CTL_SD20_SD21_SD22 (IOMUXC_BASE + 0x298) +#define IOMUXC_SW_PAD_CTL_SD17_SD18_SD19 (IOMUXC_BASE + 0x29C) +#define IOMUXC_SW_PAD_CTL_SD14_SD15_SD16 (IOMUXC_BASE + 0x2A0) +#define IOMUXC_SW_PAD_CTL_SD11_SD12_SD13 (IOMUXC_BASE + 0x2A4) +#define IOMUXC_SW_PAD_CTL_SD8_SD9_SD10 (IOMUXC_BASE + 0x2A8) +#define IOMUXC_SW_PAD_CTL_SD5_SD6_SD7 (IOMUXC_BASE + 0x2AC) +#define IOMUXC_SW_PAD_CTL_SD2_SD3_SD4 (IOMUXC_BASE + 0x2B0) +#define IOMUXC_SW_PAD_CTL_SDBA0_SD0_SD1 (IOMUXC_BASE + 0x2B4) +#define IOMUXC_SW_PAD_CTL_A24_A25_SDBA1 (IOMUXC_BASE + 0x2B8) +#define IOMUXC_SW_PAD_CTL_A21_A22_A23 (IOMUXC_BASE + 0x2BC) +#define IOMUXC_SW_PAD_CTL_A18_A19_A20 (IOMUXC_BASE + 0x2C0) +#define IOMUXC_SW_PAD_CTL_A15_A16_A17 (IOMUXC_BASE + 0x2C4) +#define IOMUXC_SW_PAD_CTL_A12_A13_A14 (IOMUXC_BASE + 0x2C8) +#define IOMUXC_SW_PAD_CTL_A10_MA10_A11 (IOMUXC_BASE + 0x2CC) +#define IOMUXC_SW_PAD_CTL_A7_A8_A9 (IOMUXC_BASE + 0x2D0) +#define IOMUXC_SW_PAD_CTL_A4_A5_A6 (IOMUXC_BASE + 0x2D4) +#define IOMUXC_SW_PAD_CTL_A1_A2_A3 (IOMUXC_BASE + 0x2D8) +#define IOMUXC_SW_PAD_CTL_VPG0_VPG1_A0 (IOMUXC_BASE + 0x2DC) + /* * Memory regions and CS */ diff --git a/include/configs/mx31pdk.h b/include/configs/mx31pdk.h index 7167e9d..a4862c6 100644 --- a/include/configs/mx31pdk.h +++ b/include/configs/mx31pdk.h @@ -43,10 +43,10 @@ #define CONFIG_SETUP_MEMORY_TAGS 1 #define CONFIG_INITRD_TAG 1
-/* No support for NAND boot for i.MX31 PDK yet, so we rely on some other - * program to initialize the SDRAM. - */ +#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) #define CONFIG_SKIP_LOWLEVEL_INIT +#define CONFIG_SKIP_RELOCATE_UBOOT +#endif
/* * Size of malloc() pool @@ -159,4 +159,41 @@
#define CONFIG_ENV_SIZE (128 * 1024)
+/* NAND configuration for the NAND_SPL */ + +/* Start copying real U-boot from the second page */ +#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x800 +#define CONFIG_SYS_NAND_U_BOOT_SIZE 0x30000 +/* Load U-Boot to this address */ +#define CONFIG_SYS_NAND_U_BOOT_DST 0x87f00000 +#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_NAND_U_BOOT_DST + +#define CONFIG_SYS_NAND_PAGE_SIZE 0x800 +#define CONFIG_SYS_NAND_BLOCK_SIZE (128 * 1024) +#define CONFIG_SYS_NAND_PAGE_COUNT 64 +#define CONFIG_SYS_NAND_SIZE (256 * 1024 * 1024) +#define CONFIG_SYS_NAND_BAD_BLOCK_POS 0 + + +/* Configuration of lowlevel_init.S (clocks and SDRAM) */ +#define CCM_CCMR_SETUP 0x074B0BF5 +#define CCM_PDR0_SETUP_532MHZ (PDR0_CSI_PODF(0x1ff) | PDR0_PER_PODF(7) | \ + PDR0_HSP_PODF(3) | PDR0_NFC_PODF(5) | \ + PDR0_IPG_PODF(1) | PDR0_MAX_PODF(3) | \ + PDR0_MCU_PODF(0)) +#define CCM_MPCTL_SETUP_532MHZ (PLL_PD(0) | PLL_MFD(51) | PLL_MFI(10) | \ + PLL_MFN(12)) + +#define ESDMISC_MDDR_SETUP 0x00000004 +#define ESDMISC_MDDR_RESET_DL 0x0000000c +#define ESDCFG0_MDDR_SETUP 0x006ac73a + +#define ESDCTL_ROW_COL (ESDCTL_SDE | ESDCTL_ROW(2) | ESDCTL_COL(2)) +#define ESDCTL_SETTINGS (ESDCTL_ROW_COL | ESDCTL_SREFR(3) | \ + ESDCTL_DSIZ(2) | ESDCTL_BL(1)) +#define ESDCTL_PRECHARGE (ESDCTL_ROW_COL | ESDCTL_CMD_PRECHARGE) +#define ESDCTL_AUTOREFRESH (ESDCTL_ROW_COL | ESDCTL_CMD_AUTOREFRESH) +#define ESDCTL_LOADMODEREG (ESDCTL_ROW_COL | ESDCTL_CMD_LOADMODEREG) +#define ESDCTL_RW ESDCTL_SETTINGS + #endif /* __CONFIG_H */ diff --git a/nand_spl/board/freescale/mx31pdk/Makefile b/nand_spl/board/freescale/mx31pdk/Makefile new file mode 100644 index 0000000..a9572ba --- /dev/null +++ b/nand_spl/board/freescale/mx31pdk/Makefile @@ -0,0 +1,54 @@ +CONFIG_NAND_SPL = y + +include $(TOPDIR)/config.mk +include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk + +LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds +LDFLAGS = -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS) +AFLAGS += -DCONFIG_PRELOADER -DCONFIG_NAND_SPL +CFLAGS += -DCONFIG_PRELOADER -DCONFIG_NAND_SPL + +SOBJS = start.o lowlevel_init.o +COBJS = nand_boot_fsl_nfc.o + +SRCS := $(SRCTREE)/nand_spl/nand_boot_fsl_nfc.c +SRCS += $(SRCTREE)/cpu/arm1136/start.S +SRCS += $(SRCTREE)/board/freescale/mx31pdk/lowlevel_init.S +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +__OBJS := $(SOBJS) $(COBJS) +LNDIR := $(OBJTREE)/nand_spl/board/$(BOARDDIR) + +nandobj := $(OBJTREE)/nand_spl/ + +ALL = $(nandobj)u-boot-spl $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin + +all: $(obj).depend $(ALL) + +$(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl + $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(PAD_TO) -O binary $< $@ + +$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl + $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@ + +$(nandobj)u-boot-spl: $(OBJS) + cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \ + -Map $(nandobj)u-boot-spl.map \ + -o $@ + +######################################################################### + +$(obj)%.o: $(SRCTREE)/cpu/arm1136/%.S + $(CC) $(AFLAGS) -c -o $@ $< + +$(obj)%.o: $(SRCTREE)/board/freescale/mx31pdk/%.S + $(CC) $(AFLAGS) -c -o $@ $< + +$(obj)%.o: $(SRCTREE)/nand_spl/%.c + $(CC) $(CFLAGS) -c -o $@ $< + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/nand_spl/board/freescale/mx31pdk/config.mk b/nand_spl/board/freescale/mx31pdk/config.mk new file mode 100644 index 0000000..68afbf1 --- /dev/null +++ b/nand_spl/board/freescale/mx31pdk/config.mk @@ -0,0 +1 @@ +PAD_TO := 2048 diff --git a/nand_spl/board/freescale/mx31pdk/u-boot.lds b/nand_spl/board/freescale/mx31pdk/u-boot.lds new file mode 100644 index 0000000..edd8430 --- /dev/null +++ b/nand_spl/board/freescale/mx31pdk/u-boot.lds @@ -0,0 +1,36 @@ +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +SECTIONS +{ + . = 0x00000000; + + . = ALIGN(4); + .text : + { + start.o (.text) + lowlevel_init.o (.text) + nand_boot_fsl_nfc.o (.text) + *(.text) + . = 2K; + } + + . = ALIGN(4); + .rodata : { *(.rodata) } + + . = ALIGN(4); + .data : { *(.data) } + + . = ALIGN(4); + .got : { *(.got) } + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + . = ALIGN(4); + __bss_start = .; + .bss : { *(.bss) } + _end = .; +}