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-rw-r--r--arch/arm/cpu/armv7/am33xx/Makefile2
-rw-r--r--arch/arm/cpu/armv7/am33xx/board.c51
-rw-r--r--arch/arm/cpu/armv7/am33xx/config.mk18
-rw-r--r--arch/arm/cpu/armv7/am33xx/emif4.c2
-rw-r--r--arch/arm/cpu/armv7/am33xx/lowlevel_init.S72
-rw-r--r--arch/arm/cpu/armv7/omap-common/Makefile4
-rw-r--r--arch/arm/cpu/armv7/omap-common/boot-common.c49
-rw-r--r--arch/arm/cpu/armv7/omap-common/hwinit-common.c28
-rw-r--r--arch/arm/include/asm/arch-am33xx/common_def.h (renamed from board/ti/am335x/common_def.h)4
-rw-r--r--arch/arm/include/asm/arch-am33xx/omap.h59
-rw-r--r--arch/arm/include/asm/arch-am33xx/sys_proto.h1
-rw-r--r--arch/arm/include/asm/omap_common.h5
-rw-r--r--board/ti/am335x/evm.c2
-rw-r--r--board/ti/am335x/mux.c2
-rw-r--r--include/configs/am335x_evm.h41
-rw-r--r--spl/Makefile13
16 files changed, 231 insertions, 122 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/Makefile b/arch/arm/cpu/armv7/am33xx/Makefile
index 6beafbbec..776891260 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 312643c77..d64ae6936 100644
--- a/arch/arm/cpu/armv7/am33xx/board.c
+++ b/arch/arm/cpu/armv7/am33xx/board.c
@@ -19,19 +19,31 @@
#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;
+
+/* UART Defines */
+#ifdef CONFIG_SPL_BUILD
+#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 +55,37 @@ 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 +108,9 @@ 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 000000000..5750bbdcb
--- /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 1318365a4..2f4164df8 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 17c962ff7..000000000
--- 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 a68461126..3f7a0b25f 100644
--- a/arch/arm/cpu/armv7/omap-common/Makefile
+++ b/arch/arm/cpu/armv7/omap-common/Makefile
@@ -37,6 +37,10 @@ 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),)
+COBJS += boot-common.o
SOBJS += lowlevel_init.o
endif
diff --git a/arch/arm/cpu/armv7/omap-common/boot-common.c b/arch/arm/cpu/armv7/omap-common/boot-common.c
new file mode 100644
index 000000000..f211f7670
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap-common/boot-common.c
@@ -0,0 +1,49 @@
+/*
+ * boot-common.c
+ *
+ * Common bootmode functions for omap based boards
+ *
+ * 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 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.
+ */
+
+#include <common.h>
+#include <asm/omap_common.h>
+#include <asm/arch/omap.h>
+
+/*
+ * This is used to verify if the configuration header
+ * was executed by rom code prior to control of transfer
+ * to the bootloader. SPL is responsible for saving and
+ * passing the boot_params pointer to the u-boot.
+ */
+struct omap_boot_parameters boot_params __attribute__ ((section(".data")));
+
+#ifdef CONFIG_SPL_BUILD
+/*
+ * We use static variables because global data is not ready yet.
+ * Initialized data is available in SPL right from the beginning.
+ * We would not typically need to save these parameters in regular
+ * U-Boot. This is needed only in SPL at the moment.
+ */
+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;
+}
+#endif
diff --git a/arch/arm/cpu/armv7/omap-common/hwinit-common.c b/arch/arm/cpu/armv7/omap-common/hwinit-common.c
index f65705db1..da22f7316 100644
--- a/arch/arm/cpu/armv7/omap-common/hwinit-common.c
+++ b/arch/arm/cpu/armv7/omap-common/hwinit-common.c
@@ -35,34 +35,6 @@
DECLARE_GLOBAL_DATA_PTR;
-/*
- * This is used to verify if the configuration header
- * was executed by rom code prior to control of transfer
- * to the bootloader. SPL is responsible for saving and
- * passing the boot_params pointer to the u-boot.
- */
-struct omap_boot_parameters boot_params __attribute__ ((section(".data")));
-
-#ifdef CONFIG_SPL_BUILD
-/*
- * We use static variables because global data is not ready yet.
- * Initialized data is available in SPL right from the beginning.
- * We would not typically need to save these parameters in regular
- * U-Boot. This is needed only in SPL at the moment.
- */
-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;
-}
-#endif
-
void do_set_mux(u32 base, struct pad_conf_entry const *array, int size)
{
int i;
diff --git a/board/ti/am335x/common_def.h b/arch/arm/include/asm/arch-am33xx/common_def.h
index 1696d6093..767932dae 100644
--- a/board/ti/am335x/common_def.h
+++ b/arch/arm/include/asm/arch-am33xx/common_def.h
@@ -17,8 +17,6 @@
#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);
+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 000000000..fc2b7a5a2
--- /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 09ed6508b..6c58f1b30 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 1ec651b35..efbf64668 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
+#define BOOT_DEVICE_UART 65
#endif
/* Boot type */
diff --git a/board/ti/am335x/evm.c b/board/ti/am335x/evm.c
index b4eddd809..6a9f78829 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 27f5f30fe..4cb0cdf36 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 1a25eb3e1..2cea1f461 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# "
@@ -118,7 +116,44 @@
#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 "$(CPUDIR)/omap-common/u-boot-spl.lds"
+
+/*
+ * 1MB into the SDRAM to allow for SPL's bss at the beginning of SDRAM
+ * 64 bytes before this address should be set aside for u-boot.img's
+ * header. That is 0x800FFFC0--0x80100000 should not be used for any
+ * other needs.
+ */
+#define CONFIG_SYS_TEXT_BASE 0x80800000
+#define CONFIG_SYS_SPL_MALLOC_START 0x80208000
+#define CONFIG_SYS_SPL_MALLOC_SIZE 0x100000
+
+/* Since SPL did pll and ddr initialization for us,
+ * we don't need to do it twice.
+ */
+#ifndef CONFIG_SPL_BUILD
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#endif
/* Unsupported features */
#undef CONFIG_USE_IRQ
diff --git a/spl/Makefile b/spl/Makefile
index 6ac42a2d6..3262e226a 100644
--- a/spl/Makefile
+++ b/spl/Makefile
@@ -58,13 +58,7 @@ LIBS-$(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