On 11/04/2013 07:40 AM, Heiko Schocher wrote:
enable support for the siemens AT91SAM9G20 based boards taurus and axm.
Signed-off-by: Roger Meier r.meier@siemens.com Reviewed-by: Heiko Schocher hs@denx.de Cc: Andreas Bießmann andreas.devel@googlemail.com Cc: Bo Shen voice.shen@atmel.com
- changes for v2:
- add comments from bo shen
- use gpio api
- remove unneccessary comment
- use at91_wait_for_reset()
- remove unneccessary code in board file
- Coding Style cleanup (tabs and unneccessary 1 after config define removed)
- add commit message
- add comments from Andreas Bießmann andreas.devel@googlemail.com:
- detect sdram size on startup without read dram setting
- get rid of MACH_TYPE definition in config file
board/siemens/taurus/Makefile | 38 +++++++++ board/siemens/taurus/taurus.c | 186 ++++++++++++++++++++++++++++++++++++++++++ boards.cfg | 2 + include/configs/taurus.h | 159 ++++++++++++++++++++++++++++++++++++ 4 files changed, 385 insertions(+) create mode 100644 board/siemens/taurus/Makefile create mode 100644 board/siemens/taurus/taurus.c create mode 100644 include/configs/taurus.h
diff --git a/board/siemens/taurus/Makefile b/board/siemens/taurus/Makefile new file mode 100644 index 0000000..9c288b7 --- /dev/null +++ b/board/siemens/taurus/Makefile @@ -0,0 +1,38 @@ +# +# Makefile for Siemens TAURUS (AT91SAM9G20) based board +# (C) Copyright 2013 Siemens AG +# +# Based on: +# U-Boot file: board/atmel/at91sam9260ek/Makefile +# +# (C) Copyright 2003-2008 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# (C) Copyright 2008 +# Stelian Pop stelian@popies.net +# Lead Tech Design <www.leadtechdesign.com> +# +# SPDX-License-Identifier: GPL-2.0+ +#
+include $(TOPDIR)/config.mk
+LIB = $(obj)lib$(BOARD).o
+COBJS-y += taurus.o
+SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS-y)) +SOBJS := $(addprefix $(obj),$(SOBJS))
+$(LIB): $(obj).depend $(OBJS) $(SOBJS)
- $(call cmd_link_o_target, $(OBJS) $(SOBJS))
+#########################################################################
+# defines $(obj).depend target +include $(SRCTREE)/rules.mk
+sinclude $(obj).depend
+######################################################################### diff --git a/board/siemens/taurus/taurus.c b/board/siemens/taurus/taurus.c new file mode 100644 index 0000000..66d55d6 --- /dev/null +++ b/board/siemens/taurus/taurus.c @@ -0,0 +1,186 @@ +/*
- Board functions for Siemens TAURUS (AT91SAM9G20) based boards
- (C) Copyright Siemens AG
- Based on:
- U-Boot file: board/atmel/at91sam9260ek/at91sam9260ek.c
- (C) Copyright 2007-2008
- Stelian Pop stelian@popies.net
- Lead Tech Design <www.leadtechdesign.com>
- SPDX-License-Identifier: GPL-2.0+
- */
+#include <common.h> +#include <asm/io.h> +#include <asm/arch/at91sam9260_matrix.h> +#include <asm/arch/at91sam9_smc.h> +#include <asm/arch/at91_common.h> +#include <asm/arch/at91_pmc.h> +#include <asm/arch/at91_rstc.h> +#include <asm/arch/gpio.h> +#include <asm/arch/at91sam9_sdramc.h> +#include <atmel_mci.h>
+#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
minor complaint: I think we can include net.h unconditionally here.
+# include <net.h> +#endif +#include <netdev.h>
+DECLARE_GLOBAL_DATA_PTR;
+#ifdef CONFIG_CMD_NAND +static void taurus_nand_hw_init(void) +{
- struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
- struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
- unsigned long csa;
- /* Assign CS3 to NAND/SmartMedia Interface */
- csa = readl(&matrix->ebicsa);
- csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
- writel(csa, &matrix->ebicsa);
- /* Configure SMC CS3 for NAND/SmartMedia */
- writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) |
AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),&smc->cs[3].setup);- writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(3) |
AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(3),&smc->cs[3].pulse);- writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7),
&smc->cs[3].cycle);- writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
AT91_SMC_MODE_EXNW_DISABLE |AT91_SMC_MODE_DBW_8 |AT91_SMC_MODE_TDF_CYCLE(3),&smc->cs[3].mode);- /* Configure RDY/BSY */
- at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
- /* Enable NandFlash */
- at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
+} +#endif
+#ifdef CONFIG_MACB +static void taurus_macb_hw_init(void) +{
- struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
- struct at91_rstc *rstc = (struct at91_rstc *)ATMEL_BASE_RSTC;
- unsigned long erstl;
- /* Enable EMAC clock */
- writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
Is it required to enable the MACB clock before PHY reset? It will be done later on in at91_macb_hw_init() in any case.
- /*
* Disable pull-up on:* RXDV (PA17) => PHY normal mode (not Test mode)* ERX0 (PA14) => PHY ADDR0* ERX1 (PA15) => PHY ADDR1* ERX2 (PA25) => PHY ADDR2* ERX3 (PA26) => PHY ADDR3* ECRS (PA28) => PHY ADDR4 => PHYADDR = 0x0** PHY has internal pull-down*/- at91_set_pio_pullup(AT91_PIO_PORTA, 14, 0);
- at91_set_pio_pullup(AT91_PIO_PORTA, 15, 0);
- at91_set_pio_pullup(AT91_PIO_PORTA, 17, 0);
- at91_set_pio_pullup(AT91_PIO_PORTA, 25, 0);
- at91_set_pio_pullup(AT91_PIO_PORTA, 26, 0);
- at91_set_pio_pullup(AT91_PIO_PORTA, 28, 0);
I'm a bit unhappy with this. As sayed before I'd like to switch the 'ATMEL_LEGACY' PIO API to be the new one. Would it be Ok for you to wait a few days for me to prepare the API for all pio features to be able to feed with a single pin input?
Beside that I said to provide some PIO API with PORT + MASK input. I still think that would be useful but I do not plan to work on that for this release. I'd be happy if you could do that, but changing it later is also Ok for me.
- /*
* Need to reset PHY ?-> 200us reset* Bug within Atmel CPU (undefined initial states on io-lines)!* Startup Ethernet Switch delayed so that hardstrap(Switch Config)* has defined state after cold start (do not break daisy chain!).*/- if ((readl(&rstc->sr) & AT91_RSTC_RSTTYP) == AT91_RSTC_RSTTYP_GENERAL)
at91_set_gpio_output(AT91_PIN_PA25, 0);
One empty line could be left out.
- erstl = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK;
- /* Need to reset PHY -> 500ms reset */
- writel(AT91_RSTC_KEY | AT91_RSTC_MR_ERSTL(13) |
AT91_RSTC_MR_URSTEN, &rstc->mr);- writel(AT91_RSTC_KEY | AT91_RSTC_CR_EXTRST, &rstc->cr);
- /* Wait for end of reset */
- at91_wait_for_reset(100);
- /* Restore NRST value */
- writel(AT91_RSTC_KEY | erstl | AT91_RSTC_MR_URSTEN, &rstc->mr);
- at91_set_gpio_input(AT91_PIN_PA25, 1); /* ERST tri-state */
- /* Re-enable pull-up */
- at91_set_pio_pullup(AT91_PIO_PORTA, 14, 1);
- at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1);
- at91_set_pio_pullup(AT91_PIO_PORTA, 17, 1);
- at91_set_pio_pullup(AT91_PIO_PORTA, 25, 1);
- at91_set_pio_pullup(AT91_PIO_PORTA, 26, 1);
- at91_set_pio_pullup(AT91_PIO_PORTA, 28, 1);
- /* Initialize EMAC=MACB hardware */
- at91_macb_hw_init();
+} +#endif
+#ifdef CONFIG_GENERIC_ATMEL_MCI +int board_mmc_init(bd_t *bd) +{
- at91_mci_hw_init();
- return atmel_mci_init((void *)ATMEL_BASE_MCI);
+} +#endif
+int board_early_init_f(void) +{
- struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
- /* Enable clocks for all PIOs */
- writel((1 << ATMEL_ID_PIOA) | (1 << ATMEL_ID_PIOB) |
(1 << ATMEL_ID_PIOC),&pmc->pcer);- return 0;
+}
+int board_init(void) +{
- /* adress of boot parameters */
- gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
- at91_seriald_hw_init();
I think enabling debug output in early_init is more useful than here.
+#ifdef CONFIG_CMD_NAND
- taurus_nand_hw_init();
+#endif +#ifdef CONFIG_MACB
- taurus_macb_hw_init();
+#endif
- return 0;
+}
+int dram_init(void) +{
- gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
CONFIG_SYS_SDRAM_SIZE);- return 0;
+}
+int board_eth_init(bd_t *bis) +{
- int rc = 0;
+#ifdef CONFIG_MACB
- rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00);
+#endif
- return rc;
+} diff --git a/boards.cfg b/boards.cfg index aa2ee64..0fe98d0 100644 --- a/boards.cfg +++ b/boards.cfg @@ -139,6 +139,8 @@ Active arm arm926ejs at91 ronetix pm9263 Active arm arm926ejs at91 ronetix pm9g45 pm9g45 pm9g45:AT91SAM9G45 Ilko Iliev iliev@ronetix.at Active arm arm926ejs at91 taskit stamp9g20 portuxg20 stamp9g20:AT91SAM9G20,PORTUXG20 Markus Hubig mhubig@imko.de Active arm arm926ejs at91 taskit stamp9g20 stamp9g20 stamp9g20:AT91SAM9G20 Markus Hubig mhubig@imko.de +Active arm arm926ejs at91 siemens taurus axm taurus:AT91SAM9G20,MACH_TYPE=2068,BOARD_AXM Heiko Schocher hs@denx.de +Active arm arm926ejs at91 siemens taurus taurus taurus:AT91SAM9G20,MACH_TYPE=2067,BOARD_TAURUS Heiko Schocher hs@denx.de Active arm arm926ejs davinci ait cam_enc_4xx cam_enc_4xx cam_enc_4xx Heiko Schocher hs@denx.de Active arm arm926ejs davinci Barix ipam390 ipam390 - Heiko Schocher hs@denx.de Active arm arm926ejs davinci davinci da8xxevm da830evm - Nick Thompson nick.thompson@gefanuc.com diff --git a/include/configs/taurus.h b/include/configs/taurus.h new file mode 100644 index 0000000..26255bb --- /dev/null +++ b/include/configs/taurus.h @@ -0,0 +1,159 @@ +/*
- Common board functions for Siemens TAURUS (AT91SAM9G20) based boards
- (C) Copyright 2013 Siemens AG
- Based on:
- U-Boot file: include/configs/at91sam9260ek.h
- (C) Copyright 2007-2008
- Stelian Pop stelian@popies.net
- Lead Tech Design <www.leadtechdesign.com>
- SPDX-License-Identifier: GPL-2.0+
- */
+#ifndef __CONFIG_H +#define __CONFIG_H
+/*
- SoC must be defined first, before hardware.h is included.
- In this case SoC is defined in boards.cfg.
- */
+#include <asm/hardware.h>
+#define MACH_TYPE_TAURUS 2067 +#define MACH_TYPE_AXM 2068
+/*
- Warning: changing CONFIG_SYS_TEXT_BASE requires
- adapting the initial boot program.
- Since the linker has to swallow that define, we must use a pure
- hex number here!
- */
+#define CONFIG_SYS_TEXT_BASE 0x23f00000
+/* ARM asynchronous clock */ +#define CONFIG_SYS_AT91_SLOW_CLOCK 32768 /* slow clock xtal */ +#define CONFIG_SYS_AT91_MAIN_CLOCK 18432000 /* main clock xtal */ +#define CONFIG_SYS_HZ 1000
+/* Misc CPU related */ +#define CONFIG_ARCH_CPU_INIT +#define CONFIG_CMDLINE_TAG /* enable passing of ATAGs */ +#define CONFIG_SETUP_MEMORY_TAGS +#define CONFIG_INITRD_TAG +#define CONFIG_SKIP_LOWLEVEL_INIT +#define CONFIG_BOARD_EARLY_INIT_F +#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_CMD_BOOTZ +#define CONFIG_OF_LIBFDT
+/* general purpose I/O */ +#define CONFIG_ATMEL_LEGACY /* required until (g)pio is fixed */ +#define CONFIG_AT91_GPIO +#define CONFIG_AT91_GPIO_PULLUP 1 /* keep pullups on peripheral pins */
+/* serial console */ +#define CONFIG_ATMEL_USART +#define CONFIG_USART_BASE ATMEL_BASE_DBGU +#define CONFIG_USART_ID ATMEL_ID_SYS +#define CONFIG_BAUDRATE 115200
+#define CONFIG_BOOTDELAY 3
+/*
- Command line configuration.
- */
+#include <config_cmd_default.h> +#undef CONFIG_CMD_BDI +#undef CONFIG_CMD_FPGA +#undef CONFIG_CMD_IMI +#undef CONFIG_CMD_IMLS +#undef CONFIG_CMD_LOADS +#undef CONFIG_CMD_SOURCE
+#define CONFIG_CMD_PING +#define CONFIG_CMD_DHCP +#define CONFIG_CMD_NAND
+/*
- SDRAM: 1 bank, min 32, max 128 MB
- Initialized before u-boot gets started.
- */
+#define CONFIG_NR_DRAM_BANKS 1 +#define CONFIG_SYS_SDRAM_BASE ATMEL_BASE_CS1 +#define CONFIG_SYS_SDRAM_SIZE (128 * 1024 * 1024)
+/*
- Initial stack pointer: 4k - GENERATED_GBL_DATA_SIZE in internal SRAM,
- leaving the correct space for initial global data structure above
- that address while providing maximum stack area below.
- */
+# define CONFIG_SYS_INIT_SP_ADDR \
- (ATMEL_BASE_SRAM1 + 0x1000 - GENERATED_GBL_DATA_SIZE)
+/* NAND flash */ +#ifdef CONFIG_CMD_NAND +#define CONFIG_NAND_ATMEL +#define CONFIG_SYS_MAX_NAND_DEVICE 1 +#define CONFIG_SYS_NAND_BASE ATMEL_BASE_CS3 +#define CONFIG_SYS_NAND_DBW_8 +#define CONFIG_SYS_NAND_MASK_ALE (1 << 21) +#define CONFIG_SYS_NAND_MASK_CLE (1 << 22) +#define CONFIG_SYS_NAND_ENABLE_PIN AT91_PIN_PC14 +#define CONFIG_SYS_NAND_READY_PIN AT91_PIN_PC13 +#endif
+/* NOR flash - no real flash on this board */ +#define CONFIG_SYS_NO_FLASH 1
+/* Ethernet */ +#define CONFIG_MACB +#define CONFIG_RMII
+/* USB */ +#if defined(CONFIG_BOARD_TAURUS) +#define CONFIG_USB_ATMEL +#define CONFIG_USB_OHCI_NEW +#define CONFIG_SYS_USB_OHCI_CPU_INIT +#define CONFIG_SYS_USB_OHCI_REGS_BASE 0x00500000 +#define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91sam9260" +#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 2LEGA
What does '2LEGA' mean here?
+#define CONFIG_USB_STORAGE +#endif
+/* load address */ +#define CONFIG_SYS_LOAD_ADDR 0x22000000
+/* bootstrap in spi flash , u-boot + env + linux in nandflash */ +#define CONFIG_ENV_IS_IN_NAND +#define CONFIG_ENV_OFFSET 0x100000 +#define CONFIG_ENV_OFFSET_REDUND 0x180000 +#define CONFIG_ENV_SIZE 0x20000 /* 1 sector = 128 kB */ +#define CONFIG_BOOTCOMMAND "nand read 0x22000000 0x200000 0x300000; bootm" +#define CONFIG_BOOTARGS \
- "console=ttyS0,115200 earlyprintk " \
- "mtdparts=atmel_nand:256k(bootstrap)ro,512k(uboot)ro," \
- "256k(env),256k(env_redundant),256k(spare)," \
- "512k(dtb),6M(kernel)ro,-(rootfs) " \
- "root=/dev/mtdblock7 rw rootfstype=jffs2"
+#define CONFIG_SYS_PROMPT "U-Boot> " +#define CONFIG_SYS_CBSIZE 256 +#define CONFIG_SYS_MAXARGS 16 +#define CONFIG_SYS_PBSIZE \
- (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_LONGHELP +#define CONFIG_CMDLINE_EDITING +#define CONFIG_AUTO_COMPLETE
+/*
- Size of malloc() pool
- */
+#define CONFIG_SYS_MALLOC_LEN \
- ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)
+#endif
Best regards
Andreas Bießmann