[U-Boot] [PATCH 1/2] NDS32: Generic Board Support and Unsupport
kunhuahuang
huangkunhua at gmail.com
Mon Aug 24 08:52:35 CEST 2015
From: Kun-Hua Huang <kunhua at andestech.com>
Add nds32 ag101p generic board support.
Signed-off-by: Kun-Hua Huang <kunhua at andestech.com>
---
arch/Kconfig | 2 +
arch/nds32/cpu/n1213/Makefile | 1 -
arch/nds32/cpu/n1213/ag101/lowlevel_init.S | 16 +-
arch/nds32/cpu/n1213/start.S | 7 +-
arch/nds32/include/asm/u-boot.h | 1 +
arch/nds32/lib/Makefile | 1 -
arch/nds32/lib/board.c | 398 -----------------------------
arch/nds32/lib/interrupts.c | 4 +
board/AndesTech/adp-ag101p/adp-ag101p.c | 1 -
common/board_f.c | 8 +-
common/board_r.c | 4 +-
common/command.c | 2 +-
doc/README.ag101p | 36 +++
include/configs/adp-ag101p.h | 50 +++-
14 files changed, 104 insertions(+), 427 deletions(-)
delete mode 100644 arch/nds32/lib/board.c
create mode 100644 doc/README.ag101p
diff --git a/arch/Kconfig b/arch/Kconfig
index e952bb1..4f73819 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -56,6 +56,8 @@ config MIPS
config NDS32
bool "NDS32 architecture"
+ select HAVE_GENERIC_BOARD
+ select SYS_GENERIC_BOARD
config NIOS2
bool "Nios II architecture"
diff --git a/arch/nds32/cpu/n1213/Makefile b/arch/nds32/cpu/n1213/Makefile
index 8ab1fce..7d5ae96 100644
--- a/arch/nds32/cpu/n1213/Makefile
+++ b/arch/nds32/cpu/n1213/Makefile
@@ -12,4 +12,3 @@
extra-y = start.o
obj-$(if $(filter ag101,$(SOC)),y) += ag101/
-obj-$(if $(filter ag102,$(SOC)),y) += ag102/
diff --git a/arch/nds32/cpu/n1213/ag101/lowlevel_init.S b/arch/nds32/cpu/n1213/ag101/lowlevel_init.S
index d6484b9..1a94868 100644
--- a/arch/nds32/cpu/n1213/ag101/lowlevel_init.S
+++ b/arch/nds32/cpu/n1213/ag101/lowlevel_init.S
@@ -205,8 +205,8 @@ relo_base:
* Remapping
*/
led 0x1a
- write32 SDMC_B0_BSR_A, SDMC_B0_BSR_D ! 0x00001100
- write32 SDMC_B1_BSR_A, SDMC_B1_BSR_D ! 0x00001140
+ write32 SDMC_B0_BSR_A, SDMC_B0_BSR_D ! 0x00001800
+ write32 SDMC_B1_BSR_A, SDMC_B1_BSR_D ! 0x00001880
/* clear empty BSR registers */
led 0x1b
@@ -272,7 +272,11 @@ relo_base:
*/
led 0x1c
write32 SDMC_B0_BSR_A, 0x00001000
- write32 SDMC_B1_BSR_A, 0x00001040
+ write32 SDMC_B1_BSR_A, 0x00001200
+ li $r5, CONFIG_SYS_TEXT_BASE /* flash base address */
+ add $r11, $r11, $r5 /* add flash address offset for ret */
+ add $r10, $r10, $r5
+ move $lp, $r11
setbf15 AHBC_CR_A, FTAHBC020S_CR_REMAP ! 0x1
/*
@@ -282,9 +286,9 @@ relo_base:
li $r5, AHBC_BSR6_A
lwi $r6, [$r5]
li $r4, 0xfff0ffff
- and $r6 ,$r4 , $r6
+ and $r6 ,$r4, $r6
li $r4, 0x000b0000
- or $r6, $r4, $r6
+ or $r6, $r4, $r6
swi $r6, [$r5]
/*
@@ -299,7 +303,7 @@ relo_base:
or $r5, $r5, $r6
swi $r5, [$r4]
#endif /* #ifdef CONFIG_MEM_REMAP */
- move $lp, $r11
+ move $lp, $r11
2:
ret
diff --git a/arch/nds32/cpu/n1213/start.S b/arch/nds32/cpu/n1213/start.S
index 0d96c52..2f0b76c 100644
--- a/arch/nds32/cpu/n1213/start.S
+++ b/arch/nds32/cpu/n1213/start.S
@@ -153,8 +153,11 @@ turnoff_wtdog:
* $sp must be 8-byte alignment for ABI compliance.
*/
call_board_init_f:
- li $sp, CONFIG_SYS_INIT_SP_ADDR
- li $r0, 0x00000000
+ li $sp, CONFIG_SYS_INIT_SP_ADDR
+ li $r10, GD_SIZE /* get GD size */
+ sub $sp, $sp, $r10 /* GD start addr */
+ move $r10, $sp
+ li $r0, 0x00000000
#ifdef __PIC__
#ifdef __NDS32_N1213_43U1H__
diff --git a/arch/nds32/include/asm/u-boot.h b/arch/nds32/include/asm/u-boot.h
index 44e72d4..2efdeb1 100644
--- a/arch/nds32/include/asm/u-boot.h
+++ b/arch/nds32/include/asm/u-boot.h
@@ -30,6 +30,7 @@ typedef struct bd_info {
unsigned long bi_flashstart; /* start of FLASH memory */
unsigned long bi_flashsize; /* size of FLASH memory */
unsigned long bi_flashoffset; /* reserved area for startup monitor */
+ unsigned char bi_enetaddr[6];
struct /* RAM configuration */
{
diff --git a/arch/nds32/lib/Makefile b/arch/nds32/lib/Makefile
index 6ea96db..1a0d26f 100644
--- a/arch/nds32/lib/Makefile
+++ b/arch/nds32/lib/Makefile
@@ -9,7 +9,6 @@
# SPDX-License-Identifier: GPL-2.0+
#
-obj-y += board.o
obj-y += cache.o
obj-$(CONFIG_CMD_BOOTM) += bootm.o
obj-y += interrupts.o
diff --git a/arch/nds32/lib/board.c b/arch/nds32/lib/board.c
deleted file mode 100644
index 24a09bc..0000000
--- a/arch/nds32/lib/board.c
+++ /dev/null
@@ -1,398 +0,0 @@
-/*
- * (C) Copyright 2002-2006
- * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
- *
- * Copyright (C) 2011 Andes Technology Corporation
- * Shawn Lin, Andes Technology Corporation <nobuhiro at andestech.com>
- * Macpaul Lin, Andes Technology Corporation <macpaul at andestech.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <command.h>
-#include <malloc.h>
-#include <stdio_dev.h>
-#include <timestamp.h>
-#include <version.h>
-#include <net.h>
-#include <serial.h>
-#include <nand.h>
-#include <onenand_uboot.h>
-#include <mmc.h>
-#include <asm/sections.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#if defined(CONFIG_SYS_I2C)
-#include <i2c.h>
-#endif
-
-ulong monitor_flash_len;
-
-/*
- * Init Utilities
- */
-
-#if !defined(CONFIG_BAUDRATE)
-#define CONFIG_BAUDRATE 38400
-#endif
-static int init_baudrate(void)
-{
- gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
- return 0;
-}
-
-/*
- * WARNING: this code looks "cleaner" than the PowerPC version, but
- * has the disadvantage that you either get nothing, or everything.
- * On PowerPC, you might see "DRAM: " before the system hangs - which
- * gives a simple yet clear indication which part of the
- * initialization if failing.
- */
-static int display_dram_config(void)
-{
- int i;
-
-#ifdef DEBUG
- puts("RAM Configuration:\n");
-
- for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
- printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
- print_size(gd->bd->bi_dram[i].size, "\n");
- }
-#else
- ulong size = 0;
-
- for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
- size += gd->bd->bi_dram[i].size;
-
- puts("DRAM: ");
- print_size(size, "\n");
-#endif
-
- return 0;
-}
-
-#ifndef CONFIG_SYS_NO_FLASH
-static void display_flash_config(ulong size)
-{
- puts("Flash: ");
- print_size(size, "\n");
-}
-#endif /* CONFIG_SYS_NO_FLASH */
-
-#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
-#include <pci.h>
-static int nds32_pci_init(void)
-{
- pci_init();
- return 0;
-}
-#endif /* CONFIG_CMD_PCI || CONFIG_PCI */
-
-#if defined(CONFIG_PMU) || defined(CONFIG_PCU)
-#ifndef CONFIG_SKIP_LOWLEVEL_INIT
-static int pmu_init(void)
-{
-#if defined(CONFIG_FTPMU010_POWER)
-#ifdef __NDS32_N1213_43U1H__ /* AG101: internal definition in toolchain */
- ftpmu010_sdram_clk_disable(CONFIG_SYS_FTPMU010_PDLLCR0_HCLKOUTDIS);
- ftpmu010_mfpsr_select_dev(FTPMU010_MFPSR_AC97CLKSEL);
- ftpmu010_sdramhtc_set(CONFIG_SYS_FTPMU010_SDRAMHTC);
-#endif /* __NDS32_N1213_43U1H__ */
-#endif
- return 0;
-}
-#endif
-#endif
-
-/*
- * Breathe some life into the board...
- *
- * Initialize a serial port as console, and carry out some hardware
- * tests.
- *
- * The first part of initialization is running from Flash memory;
- * its main purpose is to initialize the RAM so that we
- * can relocate the monitor code to RAM.
- */
-
-/*
- * All attempts to come up with a "common" initialization sequence
- * that works for all boards and architectures failed: some of the
- * requirements are just _too_ different. To get rid of the resulting
- * mess of board dependent #ifdef'ed code we now make the whole
- * initialization sequence configurable to the user.
- *
- * The requirements for any new initalization function is simple: it
- * receives a pointer to the "global data" structure as it's only
- * argument, and returns an integer return code, where 0 means
- * "continue" and != 0 means "fatal error, hang the system".
- */
-typedef int (init_fnc_t)(void);
-
-void __dram_init_banksize(void)
-{
- gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
- gd->bd->bi_dram[0].size = gd->ram_size;
-}
-void dram_init_banksize(void)
- __attribute__((weak, alias("__dram_init_banksize")));
-
-init_fnc_t *init_sequence[] = {
-#if defined(CONFIG_ARCH_CPU_INIT)
- arch_cpu_init, /* basic arch cpu dependent setup */
-#endif
-#if defined(CONFIG_PMU) || defined(CONFIG_PCU)
-#ifndef CONFIG_SKIP_LOWLEVEL_INIT
- pmu_init,
-#endif
-#endif
- board_init, /* basic board dependent setup */
-#if defined(CONFIG_USE_IRQ)
- interrupt_init, /* set up exceptions */
-#endif
- timer_init, /* initialize timer */
- env_init, /* initialize environment */
- init_baudrate, /* initialze baudrate settings */
- serial_init, /* serial communications setup */
- console_init_f, /* stage 1 init of console */
-#if defined(CONFIG_DISPLAY_BOARDINFO)
- checkboard, /* display board info */
-#endif
-#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
- init_func_i2c,
-#endif
- dram_init, /* configure available RAM banks */
- display_dram_config,
- NULL,
-};
-
-void board_init_f(ulong bootflag)
-{
- bd_t *bd;
- init_fnc_t **init_fnc_ptr;
- gd_t *id;
- ulong addr, addr_sp;
-
- /* Pointer is writable since we allocated a register for it */
- gd = (gd_t *) ((CONFIG_SYS_INIT_SP_ADDR) & ~0x07);
-
- memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
-
- gd->mon_len = (unsigned int)(&__bss_end) - (unsigned int)(&_start);
-
- for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
- if ((*init_fnc_ptr)() != 0)
- hang();
- }
-
- debug("monitor len: %08lX\n", gd->mon_len);
- /*
- * Ram is setup, size stored in gd !!
- */
- debug("ramsize: %08lX\n", gd->ram_size);
-
- addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
-
- /* round down to next 4 kB limit */
- addr &= ~(4096 - 1);
- debug("Top of RAM usable for U-Boot at: %08lx\n", addr);
-
-#ifdef CONFIG_LCD
-#ifdef CONFIG_FB_ADDR
- gd->fb_base = CONFIG_FB_ADDR;
-#else
- /* reserve memory for LCD display (always full pages) */
- addr = lcd_setmem(addr);
- gd->fb_base = addr;
-#endif /* CONFIG_FB_ADDR */
-#endif /* CONFIG_LCD */
-
- /*
- * reserve memory for U-Boot code, data & bss
- * round down to next 4 kB limit
- */
- addr -= gd->mon_len;
- addr &= ~(4096 - 1);
-
- debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);
-
- /*
- * reserve memory for malloc() arena
- */
- addr_sp = addr - TOTAL_MALLOC_LEN;
- debug("Reserving %dk for malloc() at: %08lx\n",
- TOTAL_MALLOC_LEN >> 10, addr_sp);
- /*
- * (permanently) allocate a Board Info struct
- * and a permanent copy of the "global" data
- */
- addr_sp -= GENERATED_BD_INFO_SIZE;
- bd = (bd_t *) addr_sp;
- gd->bd = bd;
- memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
- debug("Reserving %zu Bytes for Board Info at: %08lx\n",
- GENERATED_BD_INFO_SIZE, addr_sp);
-
- addr_sp -= GENERATED_GBL_DATA_SIZE;
- id = (gd_t *) addr_sp;
- debug("Reserving %zu Bytes for Global Data at: %08lx\n",
- GENERATED_GBL_DATA_SIZE, addr_sp);
-
- /* setup stackpointer for exeptions */
- gd->irq_sp = addr_sp;
-#ifdef CONFIG_USE_IRQ
- addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
- debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
- CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ, addr_sp);
-#endif
- /* leave 3 words for abort-stack */
- addr_sp -= 12;
-
- /* 8-byte alignment for ABI compliance */
- addr_sp &= ~0x07;
- debug("New Stack Pointer is: %08lx\n", addr_sp);
-
- /* Ram isn't board specific, so move it to board code ... */
- dram_init_banksize();
- display_dram_config(); /* and display it */
-
- gd->relocaddr = addr;
- gd->start_addr_sp = addr_sp;
-
- gd->reloc_off = addr - _TEXT_BASE;
-
- debug("relocation Offset is: %08lx\n", gd->reloc_off);
- memcpy(id, (void *)gd, GENERATED_GBL_DATA_SIZE);
-
- relocate_code(addr_sp, id, addr);
-
- /* NOTREACHED - relocate_code() does not return */
-}
-
-/*
- * This is the next part if the initialization sequence: we are now
- * running from RAM and have a "normal" C environment, i. e. global
- * data can be written, BSS has been cleared, the stack size in not
- * that critical any more, etc.
- */
-void board_init_r(gd_t *id, ulong dest_addr)
-{
- bd_t *bd;
- ulong malloc_start;
-
- gd = id;
- bd = gd->bd;
-
- gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
-
- monitor_flash_len = (ulong)&_end - (ulong)&_start;
- debug("monitor flash len: %08lX\n", monitor_flash_len);
-
- board_init(); /* Setup chipselects */
-
-#if defined(CONFIG_NEEDS_MANUAL_RELOC)
- /*
- * We have to relocate the command table manually
- */
- fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
- ll_entry_count(cmd_tbl_t, cmd));
-#endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
-
- serial_initialize();
-
- debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
-
- /* The Malloc area is immediately below the monitor copy in DRAM */
- malloc_start = dest_addr - TOTAL_MALLOC_LEN;
- mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN);
-
-#ifndef CONFIG_SYS_NO_FLASH
- /* configure available FLASH banks */
- gd->bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
- gd->bd->bi_flashsize = flash_init();
- gd->bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + gd->bd->bi_flashsize;
-
- if (gd->bd->bi_flashsize)
- display_flash_config(gd->bd->bi_flashsize);
-#endif /* CONFIG_SYS_NO_FLASH */
-
-#if defined(CONFIG_CMD_NAND)
- puts("NAND: ");
- nand_init(); /* go init the NAND */
-#endif
-
-#if defined(CONFIG_CMD_IDE)
- puts("IDE: ");
- ide_init();
-#endif
-
-#ifdef CONFIG_GENERIC_MMC
- puts("MMC: ");
- mmc_initialize(gd->bd);
-#endif
-
-#if defined(CONFIG_SYS_I2C_ADAPTERS)
- i2c_reloc_fixup();
-#endif
-
- /* initialize environment */
- env_relocate();
-
-#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
- puts("PCI: ");
- nds32_pci_init();
-#endif
-
- stdio_init(); /* get the devices list going. */
-
- jumptable_init();
-
-#if defined(CONFIG_API)
- /* Initialize API */
- api_init();
-#endif
-
- console_init_r(); /* fully init console as a device */
-
-#if defined(CONFIG_ARCH_MISC_INIT)
- /* miscellaneous arch dependent initialisations */
- arch_misc_init();
-#endif
-#if defined(CONFIG_MISC_INIT_R)
- /* miscellaneous platform dependent initialisations */
- misc_init_r();
-#endif
-
-#if defined(CONFIG_USE_IRQ)
- /* set up exceptions */
- interrupt_init();
- /* enable exceptions */
- enable_interrupts();
-#endif
-
- /* Initialize from environment */
- load_addr = getenv_ulong("loadaddr", 16, load_addr);
-
-#ifdef CONFIG_BOARD_LATE_INIT
- board_late_init();
-#endif
-
-#if defined(CONFIG_CMD_NET)
- puts("Net: ");
-
- eth_initialize();
-#if defined(CONFIG_RESET_PHY_R)
- debug("Reset Ethernet PHY\n");
- reset_phy();
-#endif
-#endif
-
- /* main_loop() can return to retry autoboot, if so just run it again. */
- for (;;)
- main_loop();
-
- /* NOTREACHED - no way out of command loop except booting */
-}
diff --git a/arch/nds32/lib/interrupts.c b/arch/nds32/lib/interrupts.c
index d86cc23..72ff78d 100644
--- a/arch/nds32/lib/interrupts.c
+++ b/arch/nds32/lib/interrupts.c
@@ -35,6 +35,10 @@ int GIE_STATUS(void)
#ifdef CONFIG_USE_INTERRUPT
+int interrupt_init(void)
+{
+ return 0;
+}
/* enable interrupts */
void enable_interrupts(void)
{
diff --git a/board/AndesTech/adp-ag101p/adp-ag101p.c b/board/AndesTech/adp-ag101p/adp-ag101p.c
index dd8a6653..84c77f7 100644
--- a/board/AndesTech/adp-ag101p/adp-ag101p.c
+++ b/board/AndesTech/adp-ag101p/adp-ag101p.c
@@ -28,7 +28,6 @@ int board_init(void)
gd->bd->bi_arch_number = MACH_TYPE_ADPAG101P;
gd->bd->bi_boot_params = PHYS_SDRAM_0 + 0x400;
- ftsmc020_init(); /* initialize Flash */
return 0;
}
diff --git a/common/board_f.c b/common/board_f.c
index a2be577..cdc1b1a 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -272,6 +272,8 @@ static int setup_mon_len(void)
gd->mon_len = (ulong)&_end - (ulong)_init;
#elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
gd->mon_len = CONFIG_SYS_MONITOR_LEN;
+#elif defined(CONFIG_NDS32)
+ gd->mon_len = (ulong)(&__bss_end) - (ulong)(&_start);
#else
/* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
@@ -792,7 +794,8 @@ static init_fnc_t init_sequence_f[] = {
/* TODO: can we rename this to timer_init()? */
init_timebase,
#endif
-#if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || defined(CONFIG_BLACKFIN)
+#if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || \
+ defined(CONFIG_BLACKFIN) || defined(CONFIG_NDS32)
timer_init, /* initialize timer */
#endif
#ifdef CONFIG_SYS_ALLOC_DPRAM
@@ -858,7 +861,8 @@ static init_fnc_t init_sequence_f[] = {
#endif
announce_dram_init,
/* TODO: unify all these dram functions? */
-#if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32)
+#if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_NDS32) || \
+ defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32)
dram_init, /* configure available RAM banks */
#endif
#if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
diff --git a/common/board_r.c b/common/board_r.c
index bf6c725..f8c1baa 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -132,6 +132,8 @@ static int initr_reloc_global_data(void)
{
#ifdef __ARM__
monitor_flash_len = _end - __image_copy_start;
+#elif defined(CONFIG_NDS32)
+ monitor_flash_len = (ulong)&_end - (ulong)&_start;
#elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
#endif
@@ -711,7 +713,7 @@ init_fnc_t init_sequence_r[] = {
#ifdef CONFIG_DM
initr_dm,
#endif
-#ifdef CONFIG_ARM
+#if defined(CONFIG_ARM) || defined(CONFIG_NDS32)
board_init, /* Setup chipselects */
#endif
/*
diff --git a/common/command.c b/common/command.c
index 381e6a2..972ae28 100644
--- a/common/command.c
+++ b/common/command.c
@@ -445,7 +445,7 @@ void fixup_cmdtable(cmd_tbl_t *cmdtp, int size)
ulong addr;
addr = (ulong)(cmdtp->cmd) + gd->reloc_off;
-#if DEBUG_COMMANDS
+#ifdef DEBUG_COMMANDS
printf("Command \"%s\": 0x%08lx => 0x%08lx\n",
cmdtp->name, (ulong)(cmdtp->cmd), addr);
#endif
diff --git a/doc/README.ag101p b/doc/README.ag101p
new file mode 100644
index 0000000..8fc0ac5
--- /dev/null
+++ b/doc/README.ag101p
@@ -0,0 +1,36 @@
+Andes Technology SoC AG101P
+===========================
+
+AG101P is the mainline SoC produced by Andes Technology using N1213 CPU core
+with FPU and DDR contoller support.
+AG101P has integrated both AHB and APB bus and many periphals for application
+and product development.
+
+ADP-AG101P
+=========
+
+ADP-AG101P is the SoC with AG101 hardcore CPU.
+
+Configurations
+==============
+
+CONFIG_MEM_REMAP:
+ Doing memory remap is essential for preparing some non-OS or RTOS
+ applications.
+
+CONFIG_SKIP_LOWLEVEL_INIT:
+ If you want to boot this system from SPI ROM and bypass e-bios (the
+ other boot loader on ROM). You should undefine CONFIG_SKIP_LOWLEVEL_INIT
+ in "include/configs/adp-ag101p.h".
+
+Build and boot steps
+====================
+
+build:
+1. Prepare the toolchains and make sure the $PATH to toolchains is correct.
+2. Use `make adp-ag101p_defconfig` in u-boot root to build the image.
+
+Burn u-boot to SPI ROM:
+====================
+
+This section will be added later.
diff --git a/include/configs/adp-ag101p.h b/include/configs/adp-ag101p.h
index 94fcdbd..849b08e 100644
--- a/include/configs/adp-ag101p.h
+++ b/include/configs/adp-ag101p.h
@@ -20,22 +20,29 @@
#define CONFIG_SKIP_LOWLEVEL_INIT
+#define CONFIG_SYS_GENERIC_GLOBAL_DATA
+
/*
* Definitions related to passing arguments to kernel.
*/
#define CONFIG_CMDLINE_TAG /* send commandline to Kernel */
#define CONFIG_SETUP_MEMORY_TAGS /* send memory definition to kernel */
#define CONFIG_INITRD_TAG /* send initrd params */
+#define CONFIG_NEEDS_MANUAL_RELOC
#ifndef CONFIG_SKIP_LOWLEVEL_INIT
#define CONFIG_MEM_REMAP
#endif
#ifdef CONFIG_SKIP_LOWLEVEL_INIT
-#define CONFIG_SYS_TEXT_BASE 0x03200000
+#define CONFIG_SYS_TEXT_BASE 0x00500000
+#else
+#ifdef CONFIG_MEM_REMAP
+#define CONFIG_SYS_TEXT_BASE 0x80000000
#else
#define CONFIG_SYS_TEXT_BASE 0x00000000
#endif
+#endif
/*
* Timer
@@ -225,20 +232,33 @@
/*
* Physical Memory Map
*/
-#if defined(CONFIG_MEM_REMAP) || defined(CONFIG_SKIP_LOWLEVEL_INIT)
-#define PHYS_SDRAM_0 0x00000000 /* SDRAM Bank #1 */
-#if defined(CONFIG_MEM_REMAP)
-#define PHYS_SDRAM_0_AT_INIT 0x10000000 /* SDRAM Bank #1 before remap*/
+#ifdef CONFIG_SKIP_LOWLEVEL_INIT
+#define PHYS_SDRAM_0 0x00000000 /* SDRAM Bank #1 */
+#else
+#ifdef CONFIG_MEM_REMAP
+#define PHYS_SDRAM_0 0x00000000 /* SDRAM Bank #1 */
+#else
+#define PHYS_SDRAM_0 0x80000000 /* SDRAM Bank #1 */
#endif
-#else /* !CONFIG_SKIP_LOWLEVEL_INIT && !CONFIG_MEM_REMAP */
-#define PHYS_SDRAM_0 0x10000000 /* SDRAM Bank #1 */
#endif
+
#define PHYS_SDRAM_1 \
(PHYS_SDRAM_0 + PHYS_SDRAM_0_SIZE) /* SDRAM Bank #2 */
#define CONFIG_NR_DRAM_BANKS 2 /* we have 2 bank of DRAM */
-#define PHYS_SDRAM_0_SIZE 0x04000000 /* 64 MB */
-#define PHYS_SDRAM_1_SIZE 0x04000000 /* 64 MB */
+
+#ifdef CONFIG_SKIP_LOWLEVEL_INIT
+#define PHYS_SDRAM_0_SIZE 0x20000000 /* 512 MB */
+#define PHYS_SDRAM_1_SIZE 0x20000000 /* 512 MB */
+#else
+#ifdef CONFIG_MEM_REMAP
+#define PHYS_SDRAM_0_SIZE 0x20000000 /* 512 MB */
+#define PHYS_SDRAM_1_SIZE 0x20000000 /* 512 MB */
+#else
+#define PHYS_SDRAM_0_SIZE 0x08000000 /* 128 MB */
+#define PHYS_SDRAM_1_SIZE 0x08000000 /* 128 MB */
+#endif
+#endif
#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_0
@@ -318,19 +338,20 @@
#define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT
#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE
+#define CONFIG_SYS_CFI_FLASH_STATUS_POLL
/* support JEDEC */
/* Do not use CONFIG_FLASH_CFI_LEGACY to detect on board flash */
#ifdef CONFIG_SKIP_LOWLEVEL_INIT
-#define PHYS_FLASH_1 0x80400000 /* BANK 1 */
-#else /* !CONFIG_SKIP_LOWLEVEL_INIT */
+#define PHYS_FLASH_1 0x80000000 /* BANK 0 */
+#else
#ifdef CONFIG_MEM_REMAP
#define PHYS_FLASH_1 0x80000000 /* BANK 0 */
#else
#define PHYS_FLASH_1 0x00000000 /* BANK 0 */
+#endif
#endif /* CONFIG_MEM_REMAP */
-#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
#define CONFIG_SYS_FLASH_BASE PHYS_FLASH_1
#define CONFIG_SYS_FLASH_BANKS_LIST { PHYS_FLASH_1, }
@@ -345,11 +366,12 @@
* but we have only 1 bank connected to flash on board
*/
#define CONFIG_SYS_MAX_FLASH_BANKS 1
+#define CONFIG_SYS_FLASH_BANKS_SIZES {0x4000000}
/* max number of sectors on one chip */
-#define CONFIG_FLASH_SECTOR_SIZE (0x10000*2*2)
+#define CONFIG_FLASH_SECTOR_SIZE (0x10000*2)
#define CONFIG_ENV_SECT_SIZE CONFIG_FLASH_SECTOR_SIZE
-#define CONFIG_SYS_MAX_FLASH_SECT 128
+#define CONFIG_SYS_MAX_FLASH_SECT 512
/* environments */
#define CONFIG_ENV_IS_IN_FLASH
--
2.3.5
More information about the U-Boot
mailing list