Message ID | 1368053157-28317-6-git-send-email-trini@ti.com |
---|---|
State | Superseded |
Delegated to: | Tom Rini |
Headers | show |
>>>>> "Tom" == Tom Rini <trini@ti.com> writes:
Tom> From: Steve Kipisz <s-kipisz2@ti.com>
Tom> NOR requires that s_init be within the first 4KiB of the image so that
Tom> we can perform the rest of the required pinmuxing to talk with the rest
Tom> of NOR that we are found on. When NOR_BOOT is set we save our
Tom> environment in NOR at 512KiB and a redundant copy at 768KiB.
Why not use SPL when booting from NOR as well? You still want to
relocate into DDR.
Tom> Signed-off-by: Steve Kipisz <s-kipisz2@ti.com>
Tom> Signed-off-by: Tom Rini <trini@ti.com>
Tom> ---
Tom> arch/arm/cpu/armv7/am33xx/emif4.c | 6 +-
Tom> board/ti/am335x/Makefile | 2 +-
Tom> board/ti/am335x/board.c | 31 ++++++++++-
Tom> board/ti/am335x/mux.c | 6 +-
Tom> board/ti/am335x/u-boot.lds | 110 +++++++++++++++++++++++++++++++++++++
Tom> boards.cfg | 1 +
Tom> include/configs/am335x_evm.h | 27 ++++++++-
Tom> 7 files changed, 174 insertions(+), 9 deletions(-)
Tom> create mode 100644 board/ti/am335x/u-boot.lds
Tom> diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c
Tom> index aa84e96..370230b 100644
Tom> --- a/arch/arm/cpu/armv7/am33xx/emif4.c
Tom> +++ b/arch/arm/cpu/armv7/am33xx/emif4.c
Tom> @@ -43,9 +43,11 @@ void dram_init_banksize(void)
Tom> }
Tom> -#ifdef CONFIG_SPL_BUILD
Tom> +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
Tom> +#ifdef CONFIG_TI81XX
Tom> static struct dmm_lisa_map_regs *hw_lisa_map_regs =
Tom> (struct dmm_lisa_map_regs *)DMM_BASE;
Tom> +#endif
Tom> static struct vtp_reg *vtpreg[2] = {
Tom> (struct vtp_reg *)VTP0_CTRL_ADDR,
Tom> (struct vtp_reg *)VTP1_CTRL_ADDR};
Tom> @@ -53,6 +55,7 @@ static struct vtp_reg *vtpreg[2] = {
Tom> static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR;
Tom> #endif
Tom> +#ifdef CONFIG_TI81XX
Tom> void config_dmm(const struct dmm_lisa_map_regs *regs)
Tom> {
Tom> enable_dmm_clocks();
Tom> @@ -67,6 +70,7 @@ void config_dmm(const struct dmm_lisa_map_regs *regs)
Tom> writel(regs->dmm_lisa_map_1, &hw_lisa_map_regs->dmm_lisa_map_1);
Tom> writel(regs->dmm_lisa_map_0, &hw_lisa_map_regs->dmm_lisa_map_0);
Tom> }
Tom> +#endif
Tom> static void config_vtp(int nr)
Tom> {
Tom> diff --git a/board/ti/am335x/Makefile b/board/ti/am335x/Makefile
Tom> index 67a87a1..1795e3e 100644
Tom> --- a/board/ti/am335x/Makefile
Tom> +++ b/board/ti/am335x/Makefile
Tom> @@ -18,7 +18,7 @@ include $(TOPDIR)/config.mk
Tom> LIB = $(obj)lib$(BOARD).o
Tom> -ifdef CONFIG_SPL_BUILD
Tom> +ifeq ($(CONFIG_SPL_BUILD)$(CONFIG_NOR_BOOT),y)
Tom> COBJS := mux.o
Tom> endif
Tom> diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c
Tom> index 6f6b5d0..a0ad4bc 100644
Tom> --- a/board/ti/am335x/board.c
Tom> +++ b/board/ti/am335x/board.c
Tom> @@ -38,7 +38,7 @@
Tom> DECLARE_GLOBAL_DATA_PTR;
Tom> static struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
Tom> -#ifdef CONFIG_SPL_BUILD
Tom> +#if defined(CONFIG_SPL_BUILD) || (CONFIG_NOR_BOOT)
Tom> static struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
Tom> #endif
Tom> @@ -94,7 +94,7 @@ static int read_eeprom(struct am335x_baseboard_id *header)
Tom> }
Tom> /* UART Defines */
Tom> -#ifdef CONFIG_SPL_BUILD
Tom> +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
Tom> #define UART_RESET (0x1 << 1)
Tom> #define UART_CLK_RUNNING_MASK 0x1
Tom> #define UART_SMART_IDLE_EN (0x1 << 0x3)
Tom> @@ -273,6 +273,24 @@ void s_init(void)
Tom> {
Tom> __maybe_unused struct am335x_baseboard_id header;
Tom> + /*
Tom> + * The ROM will only have set up sufficient pinmux to allow for the
Tom> + * first 4KiB NOR to be read, we must finish doing what we know of
Tom> + * the NOR mux in this space in order to continue.
Tom> + */
Tom> +#ifdef CONFIG_NOR_BOOT
Tom> + asm("stmfd sp!, {r2 - r4}");
Tom> + asm("movw r4, #0x8A4");
Tom> + asm("movw r3, #0x44E1");
Tom> + asm("orr r4, r4, r3, lsl #16");
Tom> + asm("mov r2, #9");
Tom> + asm("mov r3, #8");
Tom> + asm("gpmc_mux: str r2, [r4], #4");
Tom> + asm("subs r3, r3, #1");
Tom> + asm("bne gpmc_mux");
Tom> + asm("ldmfd sp!, {r2 - r4}");
Tom> +#endif
Tom> +
Tom> /* WDT1 is already running when the bootloader gets control
Tom> * Disable it to avoid "random" resets
Tom> */
Tom> @@ -283,7 +301,7 @@ void s_init(void)
Tom> while (readl(&wdtimer->wdtwwps) != 0x0)
Tom> ;
Tom> -#ifdef CONFIG_SPL_BUILD
Tom> +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
Tom> /* Setup the PLLs and the clocks for the peripherals */
Tom> pll_init();
Tom> @@ -324,9 +342,16 @@ void s_init(void)
Tom> regVal |= UART_SMART_IDLE_EN;
Tom> writel(regVal, &uart_base->uartsyscfg);
Tom> +#if defined(CONFIG_NOR_BOOT)
Tom> + /* We want our console now. */
Tom> + gd->baudrate = CONFIG_BAUDRATE;
Tom> + serial_init();
Tom> + gd->have_console = 1;
Tom> +#else
Tom> gd = &gdata;
Tom> preloader_console_init();
Tom> +#endif
Tom> /* Initalize the board header */
Tom> enable_i2c0_pin_mux();
Tom> diff --git a/board/ti/am335x/mux.c b/board/ti/am335x/mux.c
Tom> index 187468e..5b7ed63 100644
Tom> --- a/board/ti/am335x/mux.c
Tom> +++ b/board/ti/am335x/mux.c
Tom> @@ -190,7 +190,7 @@ static struct module_pin_mux nand_pin_mux[] = {
Tom> {-1},
Tom> };
Tom> -#if defined(CONFIG_NOR)
Tom> +#if defined(CONFIG_NOR) && !defined(CONFIG_NOR_BOOT)
Tom> static struct module_pin_mux bone_norcape_pin_mux[] = {
Tom> {OFFSET(lcd_data0), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A0 */
Tom> {OFFSET(lcd_data1), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A1 */
Tom> @@ -317,8 +317,10 @@ void enable_board_pin_mux(struct am335x_baseboard_id *header)
Tom> configure_module_pin_mux(i2c1_pin_mux);
Tom> configure_module_pin_mux(mii1_pin_mux);
Tom> configure_module_pin_mux(mmc0_pin_mux);
Tom> +#ifndef CONFIG_NOR
Tom> configure_module_pin_mux(mmc1_pin_mux);
Tom> -#if defined(CONFIG_NOR)
Tom> +#endif
Tom> +#if defined(CONFIG_NOR) && !defined(CONFIG_NOR_BOOT)
Tom> configure_module_pin_mux(bone_norcape_pin_mux);
Tom> #endif
Tom> } else if (board_is_gp_evm(header)) {
Tom> diff --git a/board/ti/am335x/u-boot.lds b/board/ti/am335x/u-boot.lds
Tom> new file mode 100644
Tom> index 0000000..d376743
Tom> --- /dev/null
Tom> +++ b/board/ti/am335x/u-boot.lds
Tom> @@ -0,0 +1,110 @@
Tom> +/*
Tom> + * Copyright (c) 2004-2008 Texas Instruments
Tom> + *
Tom> + * (C) Copyright 2002
Tom> + * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
Tom> + *
Tom> + * See file CREDITS for list of people who contributed to this
Tom> + * project.
Tom> + *
Tom> + * This program is free software; you can redistribute it and/or
Tom> + * modify it under the terms of the GNU General Public License as
Tom> + * published by the Free Software Foundation; either version 2 of
Tom> + * the License, or (at your option) any later version.
Tom> + *
Tom> + * This program is distributed in the hope that it will be useful,
Tom> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
Tom> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Tom> + * GNU General Public License for more details.
Tom> + *
Tom> + * You should have received a copy of the GNU General Public License
Tom> + * along with this program; if not, write to the Free Software
Tom> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
Tom> + * MA 02111-1307 USA
Tom> + */
Tom> +
Tom> +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
Tom> +OUTPUT_ARCH(arm)
Tom> +ENTRY(_start)
Tom> +SECTIONS
Tom> +{
Tom> + . = 0x00000000;
Tom> +
Tom> + . = ALIGN(4);
Tom> + .text :
Tom> + {
Tom> + __image_copy_start = .;
Tom> + CPUDIR/start.o (.text*)
Tom> + board/ti/am335x/libam335x.o (.text*)
Tom> + *(.text*)
Tom> + }
Tom> +
Tom> + . = ALIGN(4);
Tom> + .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
Tom> +
Tom> + . = ALIGN(4);
Tom> + .data : {
Tom> + *(.data*)
Tom> + }
Tom> +
Tom> + . = ALIGN(4);
Tom> +
Tom> + . = .;
Tom> +
Tom> + . = ALIGN(4);
Tom> + .u_boot_list : {
Tom> + KEEP(*(SORT(.u_boot_list*)));
Tom> + }
Tom> +
Tom> + . = ALIGN(4);
Tom> +
Tom> + __image_copy_end = .;
Tom> +
Tom> + .rel.dyn : {
Tom> + __rel_dyn_start = .;
Tom> + *(.rel*)
Tom> + __rel_dyn_end = .;
Tom> + }
Tom> +
Tom> + .dynsym : {
Tom> + __dynsym_start = .;
Tom> + *(.dynsym)
Tom> + }
Tom> +
Tom> + _end = .;
Tom> +
Tom> + /*
Tom> + * Deprecated: this MMU section is used by pxa at present but
Tom> + * should not be used by new boards/CPUs.
Tom> + */
Tom> + . = ALIGN(4096);
Tom> + .mmutable : {
Tom> + *(.mmutable)
Tom> + }
Tom> +
Tom> +/*
Tom> + * Compiler-generated __bss_start and __bss_end, see arch/arm/lib/bss.c
Tom> + * __bss_base and __bss_limit are for linker only (overlay ordering)
Tom> + */
Tom> +
Tom> + .bss_start __rel_dyn_start (OVERLAY) : {
Tom> + KEEP(*(.__bss_start));
Tom> + __bss_base = .;
Tom> + }
Tom> +
Tom> + .bss __bss_base (OVERLAY) : {
Tom> + *(.bss*)
Tom> + . = ALIGN(4);
Tom> + __bss_limit = .;
Tom> + }
Tom> +
Tom> + .bss_end __bss_limit (OVERLAY) : {
Tom> + KEEP(*(.__bss_end));
Tom> + }
Tom> +
Tom> + /DISCARD/ : { *(.dynstr*) }
Tom> + /DISCARD/ : { *(.dynamic*) }
Tom> + /DISCARD/ : { *(.plt*) }
Tom> + /DISCARD/ : { *(.interp*) }
Tom> + /DISCARD/ : { *(.gnu*) }
Tom> +}
Tom> diff --git a/boards.cfg b/boards.cfg
Tom> index d74840d..90e018f 100644
Tom> --- a/boards.cfg
Tom> +++ b/boards.cfg
Tom> @@ -237,6 +237,7 @@ integratorcp_cm946es arm arm946es integrator armltd
Tom> ca9x4_ct_vxp arm armv7 vexpress armltd
Tom> am335x_evm arm armv7 am335x ti am33xx am335x_evm:SERIAL1,CONS_INDEX=1
Tom> am335x_evm_nor arm armv7 am335x ti am33xx am335x_evm:SERIAL1,CONS_INDEX=1,NOR
Tom> +am335x_evm_norboot arm armv7 am335x ti am33xx am335x_evm:SERIAL1,CONS_INDEX=1,NOR,NOR_BOOT
Tom> am335x_evm_spiboot arm armv7 am335x ti am33xx am335x_evm:SERIAL1,CONS_INDEX=1,SPI_BOOT
Tom> am335x_evm_uart1 arm armv7 am335x ti am33xx am335x_evm:SERIAL2,CONS_INDEX=2
Tom> am335x_evm_uart2 arm armv7 am335x ti am33xx am335x_evm:SERIAL3,CONS_INDEX=3
Tom> diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
Tom> index 343a4aa..abc477b 100644
Tom> --- a/include/configs/am335x_evm.h
Tom> +++ b/include/configs/am335x_evm.h
Tom> @@ -39,6 +39,9 @@
Tom> #define CONFIG_SETUP_MEMORY_TAGS
Tom> #define CONFIG_INITRD_TAG
Tom> +/* Custom script for NOR */
Tom> +#define CONFIG_SYS_LDSCRIPT "board/ti/am335x/u-boot.lds"
Tom> +
Tom> #define CONFIG_SYS_CACHELINE_SIZE 64
Tom> /* commands to include */
Tom> @@ -300,6 +303,7 @@
Tom> #define CONFIG_ENV_OVERWRITE 1
Tom> #define CONFIG_SYS_CONSOLE_INFO_QUIET
Tom> +#ifndef CONFIG_NOR_BOOT
Tom> /* Defines for SPL */
Tom> #define CONFIG_SPL
Tom> #define CONFIG_SPL_FRAMEWORK
Tom> @@ -343,6 +347,8 @@
Tom> #define CONFIG_SPL_NAND_BASE
Tom> #define CONFIG_SPL_NAND_DRIVERS
Tom> #define CONFIG_SPL_NAND_ECC
Tom> +#endif
Tom> +
Tom> #define CONFIG_SYS_NAND_5_ADDR_CYCLE
Tom> #define CONFIG_SYS_NAND_PAGE_COUNT (CONFIG_SYS_NAND_BLOCK_SIZE / \
Tom> CONFIG_SYS_NAND_PAGE_SIZE)
Tom> @@ -376,14 +382,18 @@
Tom> * header. That is 0x800FFFC0--0x80100000 should not be used for any
Tom> * other needs.
Tom> */
Tom> +#ifdef CONFIG_NOR_BOOT
Tom> +#define CONFIG_SYS_TEXT_BASE 0x08000000
Tom> +#else
Tom> #define CONFIG_SYS_TEXT_BASE 0x80800000
Tom> +#endif
Tom> #define CONFIG_SYS_SPL_MALLOC_START 0x80208000
Tom> #define CONFIG_SYS_SPL_MALLOC_SIZE 0x100000
Tom> /* Since SPL did pll and ddr initialization for us,
Tom> * we don't need to do it twice.
Tom> */
Tom> -#ifndef CONFIG_SPL_BUILD
Tom> +#if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT)
Tom> #define CONFIG_SKIP_LOWLEVEL_INIT
Tom> #endif
Tom> @@ -470,7 +480,7 @@
Tom> #define CONFIG_PHY_ADDR 0
Tom> #define CONFIG_PHY_SMSC
Tom> -#if !defined(CONFIG_SPI_BOOT)
Tom> +#if !defined(CONFIG_SPI_BOOT) && !defined(CONFIG_NOR_BOOT)
Tom> #define CONFIG_NAND
Tom> #endif
Tom> @@ -520,6 +530,19 @@
Tom> #define CONFIG_SYS_FLASH_BASE (0x08000000)
Tom> #define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT
Tom> #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
Tom> +#ifdef CONFIG_NOR_BOOT
Tom> +#define CONFIG_ENV_IS_IN_FLASH
Tom> +#define CONFIG_ENV_SECT_SIZE (128 << 10) /* 128 KiB */
Tom> +#define CONFIG_ENV_OFFSET (512 << 10) /* 512 KiB */
Tom> +#define CONFIG_ENV_OFFSET_REDUND (768 << 10) /* 768 KiB */
Tom> +#define CONFIG_CMD_MTDPARTS
Tom> +#define MTDIDS_DEFAULT "nor0=physmap-flash.0"
Tom> +#define MTDPARTS_DEFAULT "mtdparts=physmap-flash.0:" \
Tom> + "512k(u-boot)," \
Tom> + "128k(u-boot-env1)," \
Tom> + "128k(u-boot-env2)," \
Tom> + "4m(kernel),-(rootfs)"
Tom> +#endif
Tom> #define CONFIG_MTD_DEVICE
Tom> #define CONFIG_CMD_FLASH
Tom> #endif /* NOR support */
Tom> --
Tom> 1.7.9.5
Tom> _______________________________________________
Tom> U-Boot mailing list
Tom> U-Boot@lists.denx.de
Tom> http://lists.denx.de/mailman/listinfo/u-boot
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 05/12/2013 05:34 PM, Peter Korsgaard wrote: >>>>>> "Tom" == Tom Rini <trini@ti.com> writes: > > Tom> From: Steve Kipisz <s-kipisz2@ti.com> Tom> NOR requires that > s_init be within the first 4KiB of the image so that Tom> we can > perform the rest of the required pinmuxing to talk with the rest > Tom> of NOR that we are found on. When NOR_BOOT is set we save our > Tom> environment in NOR at 512KiB and a redundant copy at 768KiB. > > Why not use SPL when booting from NOR as well? You still want to > relocate into DDR. Frankly, I'm allergic to SPL for NOR. It's the historical and well understood case, we're r/o until we move from flash to DDR. And it is fast enough here at least that it doesn't seem like we'd gain on falcon mode like we do on other medium. - -- Tom -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBAgAGBQJRkAy9AAoJENk4IS6UOR1WxigP/1S8n8bVGDSsBR89VR3ned+9 MXaIGwzm449ifV28VI0R8NrnEi/GLrcPBVBdaKkaJuHI/rsApX4hAmYxYIVT7JeK mCPARP/ZxLoGWLqsfTMqfuoGcqzhBU0tOWHZ2WiGr/lf3ChMR4yw/O/HjD1R4Ew+ 46EVMfgte5AQ11Xv47vdMrG8i15WbPDqotYA/gRUlz/bpBGSXkZpmFHyXzfH7NE2 3buO3V+Z76dLUMaWgetFg5gGtbJ6EVhC1oZKWgPym46h63HwMhhtl8APGS1goE+j 8ilKilQZEKQz9bh4t3jhQcCYqvG3YFY/xvjq10dviujVBD173dd4AI63S0PyN3gV 1m1nwdlkUZfGQqsQpq2fiJ2MgD78hKomsrszz6+Rqdy20bDTdWQXERjTUWnc2UGg tcF2OzIe63W+RFgnY+9jkYsYnj+NofJYgeD2prFc5/mT5ObPeQKSUQ7c5ZMMjibo aZ+XwknoBjv76YgPzdUZADkazqnbHiXf0ulPjpviOjSK9Gh+WhLArTQuwQkWjGEi 1CTlvJspb8UcxNycNl9sYdVVtRNO/80UM/vwjvwPHsrsdSUQuo0GVcuhq/YQxhw6 CnA2jUFLsODdROauLTdee5e1F2tZKtGSFWe6qy09C5kTWoc+9g3HN0ix+Q64JSVO nN3t5RKPCLleQxV0V44E =lkA1 -----END PGP SIGNATURE-----
>>>>> "Tom" == Tom Rini <trini@ti.com> writes: >> Why not use SPL when booting from NOR as well? You still want to >> relocate into DDR. Tom> Frankly, I'm allergic to SPL for NOR. It's the historical and well Tom> understood case, we're r/o until we move from flash to DDR. And it is Tom> fast enough here at least that it doesn't seem like we'd gain on Tom> falcon mode like we do on other medium. Ok. It would be good to mention this in the commit message.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 05/12/2013 05:53 PM, Peter Korsgaard wrote: >>>>>> "Tom" == Tom Rini <trini@ti.com> writes: > >>> Why not use SPL when booting from NOR as well? You still want >>> to relocate into DDR. > > Tom> Frankly, I'm allergic to SPL for NOR. It's the historical and > well Tom> understood case, we're r/o until we move from flash to > DDR. And it is Tom> fast enough here at least that it doesn't seem > like we'd gain on Tom> falcon mode like we do on other medium. > > Ok. It would be good to mention this in the commit message. I'll reword things slightly. - -- Tom -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBAgAGBQJRkOwwAAoJENk4IS6UOR1WD/sP/RzsGGI7Bi8WdwOZRmukJLsD 47NHRtTbCAcdSNCbkbaKcibO17Id7HILJMo6k7OPFIO5R4/qACfzjCgod06f5439 Ex3306B952p/udozgk+U6+HctDcfAr58zhOQe2zSEP7tQVh3mK9tOMiZfCWoyNo4 liBaAot6e0qWaddnTaoePbTz4fRoRGs7ayEovnIo1/6hPhtZKPowZmf5+3D/+iSg +jnfOnzLU2CY8xKSMC77ZnkuaeKzsjPShz94r5TXhNdPrmCN450l21uZ6HdxjM9J qjSKxjdVuxitWdFdqaRAFenuyzplxyH5Tj0IVxz/dcxcm3zBmLf6uMGOeMU33mjr oRbOjVlcAGFTRkwjQ0JaTEjokGaEkw7o/AT5nchBNKJq+btn28Ql6UvSnl0NUtfq qj4rG5mgkYNIxNNgvJfHNkYr5yP74CFxIE0U8G+wtjENNd7AOpE7OX4DVChkfdi5 vzrAWSBAml1r4hOtXKuzCZeAb/hHn0+1t84QC6z/mdnZ4+1P504alFkoOST3tkW3 FUJa4P/aLHwQxoLDbxkAUeMtgsirPx7KZzsOYxQZck6jy+DS6LVj5VtTUtpnXqYu u3vZRQqYOAPYo3e9g55Vg2pdumJopCBvlp9bVb3JIhymekMFRLwvS3gKvLM+kgQe ZOj62cEWS/LiVK0LQzIT =3p8m -----END PGP SIGNATURE-----
diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c index aa84e96..370230b 100644 --- a/arch/arm/cpu/armv7/am33xx/emif4.c +++ b/arch/arm/cpu/armv7/am33xx/emif4.c @@ -43,9 +43,11 @@ void dram_init_banksize(void) } -#ifdef CONFIG_SPL_BUILD +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) +#ifdef CONFIG_TI81XX static struct dmm_lisa_map_regs *hw_lisa_map_regs = (struct dmm_lisa_map_regs *)DMM_BASE; +#endif static struct vtp_reg *vtpreg[2] = { (struct vtp_reg *)VTP0_CTRL_ADDR, (struct vtp_reg *)VTP1_CTRL_ADDR}; @@ -53,6 +55,7 @@ static struct vtp_reg *vtpreg[2] = { static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR; #endif +#ifdef CONFIG_TI81XX void config_dmm(const struct dmm_lisa_map_regs *regs) { enable_dmm_clocks(); @@ -67,6 +70,7 @@ void config_dmm(const struct dmm_lisa_map_regs *regs) writel(regs->dmm_lisa_map_1, &hw_lisa_map_regs->dmm_lisa_map_1); writel(regs->dmm_lisa_map_0, &hw_lisa_map_regs->dmm_lisa_map_0); } +#endif static void config_vtp(int nr) { diff --git a/board/ti/am335x/Makefile b/board/ti/am335x/Makefile index 67a87a1..1795e3e 100644 --- a/board/ti/am335x/Makefile +++ b/board/ti/am335x/Makefile @@ -18,7 +18,7 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(BOARD).o -ifdef CONFIG_SPL_BUILD +ifeq ($(CONFIG_SPL_BUILD)$(CONFIG_NOR_BOOT),y) COBJS := mux.o endif diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c index 6f6b5d0..a0ad4bc 100644 --- a/board/ti/am335x/board.c +++ b/board/ti/am335x/board.c @@ -38,7 +38,7 @@ DECLARE_GLOBAL_DATA_PTR; static struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE; -#ifdef CONFIG_SPL_BUILD +#if defined(CONFIG_SPL_BUILD) || (CONFIG_NOR_BOOT) static struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE; #endif @@ -94,7 +94,7 @@ static int read_eeprom(struct am335x_baseboard_id *header) } /* UART Defines */ -#ifdef CONFIG_SPL_BUILD +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) #define UART_RESET (0x1 << 1) #define UART_CLK_RUNNING_MASK 0x1 #define UART_SMART_IDLE_EN (0x1 << 0x3) @@ -273,6 +273,24 @@ void s_init(void) { __maybe_unused struct am335x_baseboard_id header; + /* + * The ROM will only have set up sufficient pinmux to allow for the + * first 4KiB NOR to be read, we must finish doing what we know of + * the NOR mux in this space in order to continue. + */ +#ifdef CONFIG_NOR_BOOT + asm("stmfd sp!, {r2 - r4}"); + asm("movw r4, #0x8A4"); + asm("movw r3, #0x44E1"); + asm("orr r4, r4, r3, lsl #16"); + asm("mov r2, #9"); + asm("mov r3, #8"); + asm("gpmc_mux: str r2, [r4], #4"); + asm("subs r3, r3, #1"); + asm("bne gpmc_mux"); + asm("ldmfd sp!, {r2 - r4}"); +#endif + /* WDT1 is already running when the bootloader gets control * Disable it to avoid "random" resets */ @@ -283,7 +301,7 @@ void s_init(void) while (readl(&wdtimer->wdtwwps) != 0x0) ; -#ifdef CONFIG_SPL_BUILD +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) /* Setup the PLLs and the clocks for the peripherals */ pll_init(); @@ -324,9 +342,16 @@ void s_init(void) regVal |= UART_SMART_IDLE_EN; writel(regVal, &uart_base->uartsyscfg); +#if defined(CONFIG_NOR_BOOT) + /* We want our console now. */ + gd->baudrate = CONFIG_BAUDRATE; + serial_init(); + gd->have_console = 1; +#else gd = &gdata; preloader_console_init(); +#endif /* Initalize the board header */ enable_i2c0_pin_mux(); diff --git a/board/ti/am335x/mux.c b/board/ti/am335x/mux.c index 187468e..5b7ed63 100644 --- a/board/ti/am335x/mux.c +++ b/board/ti/am335x/mux.c @@ -190,7 +190,7 @@ static struct module_pin_mux nand_pin_mux[] = { {-1}, }; -#if defined(CONFIG_NOR) +#if defined(CONFIG_NOR) && !defined(CONFIG_NOR_BOOT) static struct module_pin_mux bone_norcape_pin_mux[] = { {OFFSET(lcd_data0), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A0 */ {OFFSET(lcd_data1), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A1 */ @@ -317,8 +317,10 @@ void enable_board_pin_mux(struct am335x_baseboard_id *header) configure_module_pin_mux(i2c1_pin_mux); configure_module_pin_mux(mii1_pin_mux); configure_module_pin_mux(mmc0_pin_mux); +#ifndef CONFIG_NOR configure_module_pin_mux(mmc1_pin_mux); -#if defined(CONFIG_NOR) +#endif +#if defined(CONFIG_NOR) && !defined(CONFIG_NOR_BOOT) configure_module_pin_mux(bone_norcape_pin_mux); #endif } else if (board_is_gp_evm(header)) { diff --git a/board/ti/am335x/u-boot.lds b/board/ti/am335x/u-boot.lds new file mode 100644 index 0000000..d376743 --- /dev/null +++ b/board/ti/am335x/u-boot.lds @@ -0,0 +1,110 @@ +/* + * Copyright (c) 2004-2008 Texas Instruments + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> + * + * 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 + */ + +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +SECTIONS +{ + . = 0x00000000; + + . = ALIGN(4); + .text : + { + __image_copy_start = .; + CPUDIR/start.o (.text*) + board/ti/am335x/libam335x.o (.text*) + *(.text*) + } + + . = ALIGN(4); + .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) } + + . = ALIGN(4); + .data : { + *(.data*) + } + + . = ALIGN(4); + + . = .; + + . = ALIGN(4); + .u_boot_list : { + KEEP(*(SORT(.u_boot_list*))); + } + + . = ALIGN(4); + + __image_copy_end = .; + + .rel.dyn : { + __rel_dyn_start = .; + *(.rel*) + __rel_dyn_end = .; + } + + .dynsym : { + __dynsym_start = .; + *(.dynsym) + } + + _end = .; + + /* + * Deprecated: this MMU section is used by pxa at present but + * should not be used by new boards/CPUs. + */ + . = ALIGN(4096); + .mmutable : { + *(.mmutable) + } + +/* + * Compiler-generated __bss_start and __bss_end, see arch/arm/lib/bss.c + * __bss_base and __bss_limit are for linker only (overlay ordering) + */ + + .bss_start __rel_dyn_start (OVERLAY) : { + KEEP(*(.__bss_start)); + __bss_base = .; + } + + .bss __bss_base (OVERLAY) : { + *(.bss*) + . = ALIGN(4); + __bss_limit = .; + } + + .bss_end __bss_limit (OVERLAY) : { + KEEP(*(.__bss_end)); + } + + /DISCARD/ : { *(.dynstr*) } + /DISCARD/ : { *(.dynamic*) } + /DISCARD/ : { *(.plt*) } + /DISCARD/ : { *(.interp*) } + /DISCARD/ : { *(.gnu*) } +} diff --git a/boards.cfg b/boards.cfg index d74840d..90e018f 100644 --- a/boards.cfg +++ b/boards.cfg @@ -237,6 +237,7 @@ integratorcp_cm946es arm arm946es integrator armltd ca9x4_ct_vxp arm armv7 vexpress armltd am335x_evm arm armv7 am335x ti am33xx am335x_evm:SERIAL1,CONS_INDEX=1 am335x_evm_nor arm armv7 am335x ti am33xx am335x_evm:SERIAL1,CONS_INDEX=1,NOR +am335x_evm_norboot arm armv7 am335x ti am33xx am335x_evm:SERIAL1,CONS_INDEX=1,NOR,NOR_BOOT am335x_evm_spiboot arm armv7 am335x ti am33xx am335x_evm:SERIAL1,CONS_INDEX=1,SPI_BOOT am335x_evm_uart1 arm armv7 am335x ti am33xx am335x_evm:SERIAL2,CONS_INDEX=2 am335x_evm_uart2 arm armv7 am335x ti am33xx am335x_evm:SERIAL3,CONS_INDEX=3 diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h index 343a4aa..abc477b 100644 --- a/include/configs/am335x_evm.h +++ b/include/configs/am335x_evm.h @@ -39,6 +39,9 @@ #define CONFIG_SETUP_MEMORY_TAGS #define CONFIG_INITRD_TAG +/* Custom script for NOR */ +#define CONFIG_SYS_LDSCRIPT "board/ti/am335x/u-boot.lds" + #define CONFIG_SYS_CACHELINE_SIZE 64 /* commands to include */ @@ -300,6 +303,7 @@ #define CONFIG_ENV_OVERWRITE 1 #define CONFIG_SYS_CONSOLE_INFO_QUIET +#ifndef CONFIG_NOR_BOOT /* Defines for SPL */ #define CONFIG_SPL #define CONFIG_SPL_FRAMEWORK @@ -343,6 +347,8 @@ #define CONFIG_SPL_NAND_BASE #define CONFIG_SPL_NAND_DRIVERS #define CONFIG_SPL_NAND_ECC +#endif + #define CONFIG_SYS_NAND_5_ADDR_CYCLE #define CONFIG_SYS_NAND_PAGE_COUNT (CONFIG_SYS_NAND_BLOCK_SIZE / \ CONFIG_SYS_NAND_PAGE_SIZE) @@ -376,14 +382,18 @@ * header. That is 0x800FFFC0--0x80100000 should not be used for any * other needs. */ +#ifdef CONFIG_NOR_BOOT +#define CONFIG_SYS_TEXT_BASE 0x08000000 +#else #define CONFIG_SYS_TEXT_BASE 0x80800000 +#endif #define CONFIG_SYS_SPL_MALLOC_START 0x80208000 #define CONFIG_SYS_SPL_MALLOC_SIZE 0x100000 /* Since SPL did pll and ddr initialization for us, * we don't need to do it twice. */ -#ifndef CONFIG_SPL_BUILD +#if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT) #define CONFIG_SKIP_LOWLEVEL_INIT #endif @@ -470,7 +480,7 @@ #define CONFIG_PHY_ADDR 0 #define CONFIG_PHY_SMSC -#if !defined(CONFIG_SPI_BOOT) +#if !defined(CONFIG_SPI_BOOT) && !defined(CONFIG_NOR_BOOT) #define CONFIG_NAND #endif @@ -520,6 +530,19 @@ #define CONFIG_SYS_FLASH_BASE (0x08000000) #define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE +#ifdef CONFIG_NOR_BOOT +#define CONFIG_ENV_IS_IN_FLASH +#define CONFIG_ENV_SECT_SIZE (128 << 10) /* 128 KiB */ +#define CONFIG_ENV_OFFSET (512 << 10) /* 512 KiB */ +#define CONFIG_ENV_OFFSET_REDUND (768 << 10) /* 768 KiB */ +#define CONFIG_CMD_MTDPARTS +#define MTDIDS_DEFAULT "nor0=physmap-flash.0" +#define MTDPARTS_DEFAULT "mtdparts=physmap-flash.0:" \ + "512k(u-boot)," \ + "128k(u-boot-env1)," \ + "128k(u-boot-env2)," \ + "4m(kernel),-(rootfs)" +#endif #define CONFIG_MTD_DEVICE #define CONFIG_CMD_FLASH #endif /* NOR support */