[U-Boot,v2,7/7] am335x_evm: Add support to boot from NOR.

Message ID	1368469719-22406-7-git-send-email-trini@ti.com
State	Changes Requested
Delegated to:	Tom Rini
Headers	show Return-Path: <u-boot-bounces@lists.denx.de> From: Tom Rini <trini@ti.com> To: u-boot@lists.denx.de Date: Mon, 13 May 2013 14:28:39 -0400 Message-Id: <1368469719-22406-7-git-send-email-trini@ti.com> In-Reply-To: <1368469719-22406-1-git-send-email-trini@ti.com> References: <1368469719-22406-1-git-send-email-trini@ti.com> Cc: Steve Kipisz <s-kipisz2@ti.com> Subject: [U-Boot] [PATCH v2 7/7] am335x_evm: Add support to boot from NOR. Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de

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 3660655..69b8e0d 100644 --- a/board/ti/am335x/board.c +++ b/board/ti/am335x/board.c @@ -39,7 +39,7 @@ 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 @@ -95,7 +95,7 @@ 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) @@ -274,6 +274,24 @@ 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 */ @@ -284,7 +302,7 @@ 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(); @@ -325,9 +343,16 @@ 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 b4d57e1..f246111 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 @@ -344,6 +348,7 @@ #define CONFIG_SPL_NAND_DRIVERS #define CONFIG_SPL_NAND_ECC #endif +#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 +381,18 @@ * 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 @@ -468,7 +477,7 @@ #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 @@ -518,6 +527,19 @@ #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 */

[U-Boot,v2,7/7] am335x_evm: Add support to boot from NOR.

Commit Message

Comments

Patch