[U-Boot,v3,3/3] ARM:AM33XX: Add SPL support for AM335X EVM

Message ID	1325572976-25795-4-git-send-email-chandan.nath@ti.com
State	Changes Requested
Delegated to:	Tom Rini
Headers	show Return-Path: <u-boot-bounces@lists.denx.de> From: Chandan Nath <chandan.nath@ti.com> To: <u-boot@lists.denx.de> Date: Tue, 3 Jan 2012 12:12:56 +0530 Message-ID: <1325572976-25795-4-git-send-email-chandan.nath@ti.com> In-Reply-To: <1325572976-25795-1-git-send-email-chandan.nath@ti.com> References: <1325572976-25795-1-git-send-email-chandan.nath@ti.com> MIME-Version: 1.0 Cc: Tom Rini <trini@ti.com> Subject: [U-Boot] [PATCH v3 3/3] ARM:AM33XX: Add SPL support for AM335X EVM Precedence: list 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/Makefile b/arch/arm/cpu/armv7/am33xx/Makefile index 6beafbb..7768912 100644 --- a/arch/arm/cpu/armv7/am33xx/Makefile +++ b/arch/arm/cpu/armv7/am33xx/Makefile @@ -16,8 +16,6 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(SOC).o -SOBJS := lowlevel_init.o - COBJS += clock.o COBJS += sys_info.o COBJS += ddr.o diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c index 312643c..2a45933 100644 --- a/arch/arm/cpu/armv7/am33xx/board.c +++ b/arch/arm/cpu/armv7/am33xx/board.c @@ -19,19 +19,45 @@ #include <common.h> #include <asm/arch/cpu.h> #include <asm/arch/hardware.h> +#include <asm/arch/omap.h> #include <asm/arch/ddr_defs.h> #include <asm/arch/clock.h> +#include <asm/arch/mmc_host_def.h> +#include <asm/arch/common_def.h> #include <asm/io.h> +#include <asm/omap_common.h> DECLARE_GLOBAL_DATA_PTR; struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE; struct gptimer *timer_base = (struct gptimer *)CONFIG_SYS_TIMERBASE; +struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE; + +struct omap_boot_parameters boot_params __attribute__ ((section(".data"))); + +#ifdef CONFIG_SPL_BUILD +u32 omap_bootmode = MMCSD_MODE_FAT; + +u32 omap_boot_device(void) +{ + return (u32) (boot_params.omap_bootdevice); +} + +u32 omap_boot_mode(void) +{ + return omap_bootmode; +} + +/* UART Defines */ +#define UART_RESET (0x1 << 1) +#define UART_CLK_RUNNING_MASK 0x1 +#define UART_SMART_IDLE_EN (0x1 << 0x3) +#endif /* * early system init of muxing and clocks. */ -void s_init(u32 in_ddr) +void s_init(void) { /* WDT1 is already running when the bootloader gets control * Disable it to avoid "random" resets @@ -43,12 +69,37 @@ void s_init(u32 in_ddr) while (readl(&wdtimer->wdtwwps) != 0x0) ; +#ifdef CONFIG_SPL_BUILD /* Setup the PLLs and the clocks for the peripherals */ -#ifdef CONFIG_SETUP_PLL pll_init(); + + /* UART softreset */ + u32 regVal; + + enable_uart0_pin_mux(); + + regVal = readl(&uart_base->uartsyscfg); + regVal |= UART_RESET; + writel(regVal, &uart_base->uartsyscfg); + while ((readl(&uart_base->uartsyssts) & + UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK) + ; + + /* Disable smart idle */ + regVal = readl(&uart_base->uartsyscfg); + regVal |= UART_SMART_IDLE_EN; + writel(regVal, &uart_base->uartsyscfg); + + /* Initialize the Timer */ + init_timer(); + + preloader_console_init(); + + config_ddr(); #endif - if (!in_ddr) - config_ddr(); + + /* Enable MMC0 */ + enable_mmc0_pin_mux(); } /* Initialize timer */ @@ -71,3 +122,9 @@ int board_mmc_init(bd_t *bis) return omap_mmc_init(0); } #endif + +void setup_clocks_for_console(void) +{ + /* Not yet implemented */ + return; +} diff --git a/arch/arm/cpu/armv7/am33xx/config.mk b/arch/arm/cpu/armv7/am33xx/config.mk new file mode 100644 index 0000000..5750bbd --- /dev/null +++ b/arch/arm/cpu/armv7/am33xx/config.mk @@ -0,0 +1,18 @@ +# +# Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ +# +# 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 "as is" WITHOUT ANY WARRANTY of any +# kind, whether express or implied; without even the implied warranty +# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +ifdef CONFIG_SPL_BUILD +ALL-y += $(OBJTREE)/MLO +else +ALL-y += $(obj)u-boot.img +endif diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c index 1318365..2f4164d 100644 --- a/arch/arm/cpu/armv7/am33xx/emif4.c +++ b/arch/arm/cpu/armv7/am33xx/emif4.c @@ -46,7 +46,7 @@ void dram_init_banksize(void) } -#ifdef CONFIG_AM335X_CONFIG_DDR +#ifdef CONFIG_SPL_BUILD static void data_macro_config(int dataMacroNum) { struct ddr_data data; diff --git a/arch/arm/cpu/armv7/am33xx/lowlevel_init.S b/arch/arm/cpu/armv7/am33xx/lowlevel_init.S deleted file mode 100644 index 17c962f..0000000 --- a/arch/arm/cpu/armv7/am33xx/lowlevel_init.S +++ /dev/null @@ -1,72 +0,0 @@ -/* - * lowlevel_init.S - * - * AM33XX low level initialization. - * - * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ - * - * Initial Code by: - * Mansoor Ahamed <mansoor.ahamed@ti.com> - * - * 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 "as is" WITHOUT ANY WARRANTY of any - * kind, whether express or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <config.h> -#include <asm/arch/hardware.h> - -_mark1: - .word mark1 -_lowlevel_init1: - .word lowlevel_init -_s_init_start: - .word s_init_start - -_TEXT_BASE: - .word CONFIG_SYS_TEXT_BASE /* sdram load addr from config.mk */ - -/***************************************************************************** - * lowlevel_init: - Platform low level init. - ****************************************************************************/ -.globl lowlevel_init -lowlevel_init: - - /* The link register is saved in ip by start.S */ - mov r6, ip - /* check if we are already running from RAM */ - ldr r2, _lowlevel_init1 - ldr r3, _TEXT_BASE - sub r4, r2, r3 - sub r0, pc, r4 - ldr sp, SRAM_STACK -mark1: - ldr r5, _mark1 - sub r5, r5, r2 /* bytes between mark1 and lowlevel_init */ - sub r0, r0, r5 /* r0 <- _start w.r.t current place of execution */ - mov r10, #0x0 /* r10 has in_ddr used by s_init() */ - - ands r0, r0, #0xC0000000 - /* MSB 2 bits <> 0 then we are in ocmc or DDR */ - cmp r0, #0x80000000 - bne s_init_start - mov r10, #0x01 - b s_init_start - -s_init_start: - mov r0, r10 /* passing in_ddr in r0 */ - bl s_init - /* back to arch calling code */ - mov pc, r6 - /* the literal pools origin */ - .ltorg - -SRAM_STACK: - /* Place stack at the top */ - .word LOW_LEVEL_SRAM_STACK diff --git a/arch/arm/cpu/armv7/omap-common/Makefile b/arch/arm/cpu/armv7/omap-common/Makefile index a684611..517f7b1 100644 --- a/arch/arm/cpu/armv7/omap-common/Makefile +++ b/arch/arm/cpu/armv7/omap-common/Makefile @@ -37,6 +37,9 @@ ifneq ($(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX),) COBJS += hwinit-common.o COBJS += clocks-common.o COBJS += emif-common.o +endif + +ifneq ($(CONFIG_AM33XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX),) SOBJS += lowlevel_init.o endif diff --git a/arch/arm/include/asm/arch-am33xx/common_def.h b/arch/arm/include/asm/arch-am33xx/common_def.h new file mode 100644 index 0000000..767932d --- /dev/null +++ b/arch/arm/include/asm/arch-am33xx/common_def.h @@ -0,0 +1,22 @@ +/* + * common_def.h + * + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ + * + * 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 version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __COMMON_DEF_H__ +#define __COMMON_DEF_H__ + +extern void enable_uart0_pin_mux(void); +extern void enable_mmc0_pin_mux(void); + +#endif/*__COMMON_DEF_H__ */ diff --git a/arch/arm/include/asm/arch-am33xx/omap.h b/arch/arm/include/asm/arch-am33xx/omap.h new file mode 100644 index 0000000..fc2b7a5 --- /dev/null +++ b/arch/arm/include/asm/arch-am33xx/omap.h @@ -0,0 +1,59 @@ +/* + * omap.h + * + * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ + * + * Author: + * Chandan Nath <chandan.nath@ti.com> + * + * Derived from OMAP4 work by + * Aneesh V <aneesh@ti.com> + * + * 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. + */ + +#ifndef _OMAP_H_ +#define _OMAP_H_ + +/* + * Non-secure SRAM Addresses + * Non-secure RAM starts at 0x40300000 for GP devices. But we keep SRAM_BASE + * at 0x40304000(EMU base) so that our code works for both EMU and GP + */ +#define NON_SECURE_SRAM_START 0x40304000 +#define NON_SECURE_SRAM_END 0x4030E000 +#define LOW_LEVEL_SRAM_STACK 0x4030B7FC + +/* ROM code defines */ +/* Boot device */ +#define BOOT_DEVICE_MASK 0xFF +#define BOOT_DEVICE_OFFSET 0x8 +#define DEV_DESC_PTR_OFFSET 0x4 +#define DEV_DATA_PTR_OFFSET 0x18 +#define BOOT_MODE_OFFSET 0x8 +#define RESET_REASON_OFFSET 0x9 +#define CH_FLAGS_OFFSET 0xA + +#define CH_FLAGS_CHSETTINGS (0x1 << 0) +#define CH_FLAGS_CHRAM (0x1 << 1) +#define CH_FLAGS_CHFLASH (0x1 << 2) +#define CH_FLAGS_CHMMCSD (0x1 << 3) + +#ifndef __ASSEMBLY__ +struct omap_boot_parameters { + char *boot_message; + unsigned int mem_boot_descriptor; + unsigned char omap_bootdevice; + unsigned char reset_reason; + unsigned char ch_flags; +}; +#endif +#endif diff --git a/arch/arm/include/asm/arch-am33xx/sys_proto.h b/arch/arm/include/asm/arch-am33xx/sys_proto.h index 09ed650..6c58f1b 100644 --- a/arch/arm/include/asm/arch-am33xx/sys_proto.h +++ b/arch/arm/include/asm/arch-am33xx/sys_proto.h @@ -29,4 +29,5 @@ int print_cpuinfo(void); #endif u32 get_device_type(void); +void setup_clocks_for_console(void); #endif diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h index 1ec651b..6b4c010 100644 --- a/arch/arm/include/asm/omap_common.h +++ b/arch/arm/include/asm/omap_common.h @@ -62,6 +62,11 @@ void preloader_console_init(void); #define BOOT_DEVICE_MMC2 5 /*emmc*/ #define BOOT_DEVICE_MMC1 6 #define BOOT_DEVICE_XIPWAIT 7 +#elif defined(CONFIG_AM33XX) /* AM33XX */ +#define BOOT_DEVICE_NAND 5 +#define BOOT_DEVICE_MMC1 8 +#define BOOT_DEVICE_MMC2 0 /* eMMC, TODO */ +#define BOOT_DEVICE_UART 65 #endif /* Boot type */ diff --git a/board/ti/am335x/common_def.h b/board/ti/am335x/common_def.h deleted file mode 100644 index 1696d60..0000000 --- a/board/ti/am335x/common_def.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * common_def.h - * - * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ - * - * 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 version 2. - * - * This program is distributed "as is" WITHOUT ANY WARRANTY of any - * kind, whether express or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#ifndef __COMMON_DEF_H__ -#define __COMMON_DEF_H__ - -extern void enable_uart0_pin_mux(void); -extern void configure_evm_pin_mux(unsigned char daughter_board_id, - unsigned short daughter_board_profile, - unsigned char daughter_board_flag); - -#endif/*__COMMON_DEF_H__ */ diff --git a/board/ti/am335x/evm.c b/board/ti/am335x/evm.c index b4eddd8..6a9f788 100644 --- a/board/ti/am335x/evm.c +++ b/board/ti/am335x/evm.c @@ -16,7 +16,7 @@ #include <common.h> #include <asm/arch/cpu.h> #include <asm/arch/hardware.h> -#include "common_def.h" +#include <asm/arch/common_def.h> #include <serial.h> DECLARE_GLOBAL_DATA_PTR; diff --git a/board/ti/am335x/mux.c b/board/ti/am335x/mux.c index df11752..c2a61bd 100644 --- a/board/ti/am335x/mux.c +++ b/board/ti/am335x/mux.c @@ -14,7 +14,7 @@ */ #include <config.h> -#include "common_def.h" +#include <asm/arch/common_def.h> #include <asm/arch/hardware.h> #include <asm/io.h> diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h index bd68e9a..049347c 100644 --- a/include/configs/am335x_evm.h +++ b/include/configs/am335x_evm.h @@ -26,8 +26,6 @@ #include <asm/arch/cpu.h> #include <asm/arch/hardware.h> -#define CONFIG_SETUP_PLL -#define CONFIG_AM335X_CONFIG_DDR #define CONFIG_ENV_SIZE 0x400 #define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + (8 * 1024)) #define CONFIG_SYS_PROMPT "U-Boot# " @@ -119,7 +117,42 @@ #define CONFIG_ENV_IS_NOWHERE -#define CONFIG_SYS_TEXT_BASE 0x402f0400 +/* Defines for SPL */ +#define CONFIG_SPL +#define CONFIG_SPL_TEXT_BASE 0x402F0400 +#define CONFIG_SPL_MAX_SIZE (46 * 1024) +#define CONFIG_SPL_STACK LOW_LEVEL_SRAM_STACK + +#define CONFIG_SPL_BSS_START_ADDR 0x80000000 +#define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ + +#define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */ +#define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */ +#define CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION 1 +#define CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME "u-boot.img" +#define CONFIG_SPL_MMC_SUPPORT +#define CONFIG_SPL_FAT_SUPPORT + +#define CONFIG_SPL_LIBCOMMON_SUPPORT +#define CONFIG_SPL_LIBDISK_SUPPORT +#define CONFIG_SPL_LIBGENERIC_SUPPORT +#define CONFIG_SPL_SERIAL_SUPPORT +#define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/omap-common/u-boot-spl.lds" + +/* + * 1MB into the SDRAM to allow for SPL's bss at the beginning of SDRAM + * 64 bytes before this address should be set aside for u-boot.img's + * header. That is 0x800FFFC0--0x80100000 should not be used for any + * other needs. + */ +#define CONFIG_SYS_TEXT_BASE 0x80800000 +#define CONFIG_SYS_SPL_MALLOC_START 0x80208000 +#define CONFIG_SYS_SPL_MALLOC_SIZE 0x100000 + +/* Since SPL did all of this for us, we don't need to do it twice. */ +#ifndef CONFIG_SPL_BUILD +#define CONFIG_SKIP_LOWLEVEL_INIT +#endif /* Unsupported features */ #undef CONFIG_USE_IRQ diff --git a/spl/Makefile b/spl/Makefile index 6ac42a2..3262e22 100644 --- a/spl/Makefile +++ b/spl/Makefile @@ -58,13 +58,7 @@ LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/libonenand.o LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/libdma.o LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/memory.o -ifeq ($(SOC),omap3) -LIBS-y += $(CPUDIR)/omap-common/libomap-common.o -endif -ifeq ($(SOC),omap4) -LIBS-y += $(CPUDIR)/omap-common/libomap-common.o -endif -ifeq ($(SOC),omap5) +ifneq ($(CONFIG_AM33XX)$(CONFIG_OMAP34XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX),) LIBS-y += $(CPUDIR)/omap-common/libomap-common.o endif @@ -104,6 +98,11 @@ $(OBJTREE)/MLO: $(obj)u-boot-spl.bin $(OBJTREE)/tools/mkimage -T omapimage \ -a $(CONFIG_SPL_TEXT_BASE) -d $< $@ endif +ifdef CONFIG_AM33XX +$(OBJTREE)/MLO: $(obj)u-boot-spl.bin + $(OBJTREE)/tools/mkimage -T omapimage \ + -a $(CONFIG_SPL_TEXT_BASE) -d $< $@ +endif ALL-y += $(obj)u-boot-spl.bin

[U-Boot,v3,3/3] ARM:AM33XX: Add SPL support for AM335X EVM

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