March 2011 - U-Boot

[U-Boot] [PATCH] powerpc:Enable compiler debug option for powerpc platforms
by Roy Zang 25 Apr '11

25 Apr '11

This patch enables compiler debug option for powerpc platforms by default. Patch is tested on 85xx/QorIQ platforms in u-boot with CodeWarrior. Signed-off-by: Roy Zang <tie-fei.zang(a)freescale.com> Cc: Wood Scott-B07421 <B07421(a)freescale.com> Cc: Kumar Gala <galak(a)kernel.crashing.org> --- Consider the comments http://lists.denx.de/pipermail/u-boot/2010-October/080689.html http://lists.denx.de/pipermail/u-boot/2011-January/086485.html arch/powerpc/config.mk | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/config.mk b/arch/powerpc/config.mk index 64191c7..8bd57e3 100644 --- a/arch/powerpc/config.mk +++ b/arch/powerpc/config.mk @@ -53,3 +53,5 @@ endif ifeq ($(CROSS_COMPILE),powerpc-openbsd-) PLATFORM_CPPFLAGS+= -D__PPC__ endif +# default enable debug option for powerpc platform +PLATFORM_CPPFLAGS+= -ggdb -Wa,-gdwarf2 -- 1.7.3.5

3 6

[U-Boot] [PATCH 1/3] ARM: Don't grab memory for LCD if FB address is defined
by Minkyu Kang 25 Apr '11

25 Apr '11

If FB address is defined specific address then don't grab memory for LCD Signed-off-by: Minkyu Kang <mk7.kang(a)samsung.com> Cc: Albert Aribaud <albert.aribaud(a)free.fr> --- arch/arm/lib/board.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index c620d2c..5a4d2bd 100644 --- a/arch/arm/lib/board.c +++ b/arch/arm/lib/board.c @@ -356,9 +356,13 @@ void board_init_f (ulong bootflag) #endif /* CONFIG_VFD */ #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 */ /* -- 1.7.1

5 11

[U-Boot] [RFC PATCH] arm: provide a CONFIG flag for disabling relocation
by Aneesh V 21 Apr '11

21 Apr '11

Relocation may not be needed and desirable in many cases: * For many boards the amount of SDRAM is fixed. So relocation is not needed. * Relocation adds un-necessary additional overhead when it's not needed. This delay is singificant on slower platforms such as FPGA * Many boards have ample memory. So reserving enough memory for Linux in the first half is not a challenge even without relocation Add a CONFIG option to disable relocation on platforms that do not need it. When this flag is enabled allocate memory for stack heap etc at the end of memory as usual, but U-Boot itself is not moved from TEXT_BASE. Additionally, -pie is removed from the final link step because it was causing the absolute value of all symbols coming from the linker script to be 0. This affects find_cmd() Tested on OMAP4430 SDP Cc: Albert Aribaud <albert.aribaud(a)free.fr> Cc: Wolfgang Denk <wd(a)denx.de> Signed-off-by: Aneesh V <aneesh(a)ti.com> --- arch/arm/config.mk | 2 ++ arch/arm/lib/board.c | 5 +++++ board/ti/sdp4430/config.mk | 9 +++++++-- include/configs/omap4_sdp4430.h | 2 ++ 4 files changed, 16 insertions(+), 2 deletions(-) diff --git a/arch/arm/config.mk b/arch/arm/config.mk index 1785e73..2315bcb 100644 --- a/arch/arm/config.mk +++ b/arch/arm/config.mk @@ -71,5 +71,7 @@ LDSCRIPT := $(SRCTREE)/$(CPUDIR)/u-boot.lds # needed for relocation ifndef CONFIG_NAND_SPL +ifndef CONFIG_SYS_SKIP_ARM_RELOCATION LDFLAGS_u-boot += -pie endif +endif diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index 72ee108..ed3898f 100644 --- a/arch/arm/lib/board.c +++ b/arch/arm/lib/board.c @@ -361,6 +361,7 @@ void board_init_f (ulong bootflag) gd->fb_base = addr; #endif /* CONFIG_LCD */ +#ifndef CONFIG_SYS_SKIP_ARM_RELOCATION /* * reserve memory for U-Boot code, data & bss * round down to next 4 kB limit @@ -369,6 +370,7 @@ void board_init_f (ulong bootflag) addr &= ~(4096 - 1); debug ("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr); +#endif #ifndef CONFIG_PRELOADER /* @@ -420,6 +422,9 @@ void board_init_f (ulong bootflag) dram_init_banksize(); display_dram_config(); /* and display it */ +#ifdef CONFIG_SYS_SKIP_ARM_RELOCATION + addr = _TEXT_BASE; +#endif gd->relocaddr = addr; gd->start_addr_sp = addr_sp; gd->reloc_off = addr - _TEXT_BASE; diff --git a/board/ti/sdp4430/config.mk b/board/ti/sdp4430/config.mk index c62965d..8846732 100644 --- a/board/ti/sdp4430/config.mk +++ b/board/ti/sdp4430/config.mk @@ -28,5 +28,10 @@ # Linux-Kernel is expected to be at 8000'8000, entry 8000'8000 # (mem base + reserved) -# 1MB into the SDRAM to allow for SPL's bss at the beginning of SDRAM -CONFIG_SYS_TEXT_BASE = 0x80100000 +# 64MB into the SDRAM +# Assuming a minimum of 128 MB on the board: +# - 64MB before U-Boot is more than enough for Linux when relocation is +# disabled +# - ~63MB after the U-Boot is more than enough for U-Boot to relocate +# itself without stepping on itself +CONFIG_SYS_TEXT_BASE = 0x84000000 diff --git a/include/configs/omap4_sdp4430.h b/include/configs/omap4_sdp4430.h index fff67d8..e9f76d3 100644 --- a/include/configs/omap4_sdp4430.h +++ b/include/configs/omap4_sdp4430.h @@ -278,4 +278,6 @@ #define CONFIG_SYS_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ #define CONFIG_SYS_THUMB_BUILD + +#define CONFIG_SYS_SKIP_ARM_RELOCATION #endif /* __CONFIG_H */ -- 1.7.0.4

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[U-Boot] [PATCH] xilinx_ppc_boards: Change address of RESET_VECTOR
by Ricardo Ribalda Delgado 21 Apr '11

21 Apr '11

Old address of RESET_VECTOR were overwritten by the bss sector, making impossible its run from xmd. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda(a)gmail.com> --- boards.cfg | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-) diff --git a/boards.cfg b/boards.cfg index 94b8745..2ba603d 100644 --- a/boards.cfg +++ b/boards.cfg @@ -675,9 +675,9 @@ yellowstone powerpc ppc4xx yosemite amcc yosemite powerpc ppc4xx yosemite amcc - yosemite:YOSEMITE yucca powerpc ppc4xx - amcc AP1000 powerpc ppc4xx ap1000 amirix -fx12mm powerpc ppc4xx fx12mm avnet - fx12mm:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x03FFFFFC,INIT_TLB=board/xilinx/ppc405-generic/init.o +fx12mm powerpc ppc4xx fx12mm avnet - fx12mm:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x04100000,INIT_TLB=board/xilinx/ppc405-generic/init.o fx12mm_flash powerpc ppc4xx fx12mm avnet - fx12mm:SYS_TEXT_BASE=0xF7F60000,RESET_VECTOR_ADDRESS=0xF7FFFFFC,INIT_TLB=board/xilinx/ppc405-generic/init.o -v5fx30teval powerpc ppc4xx v5fx30teval avnet - v5fx30teval:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x03FFFFFC,BOOT_FROM_XMD=1,INIT_TLB=board/xilinx/ppc440-generic/init.o +v5fx30teval powerpc ppc4xx v5fx30teval avnet - v5fx30teval:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x04100000,BOOT_FROM_XMD=1,INIT_TLB=board/xilinx/ppc440-generic/init.o v5fx30teval_flash powerpc ppc4xx v5fx30teval avnet - v5fx30teval:SYS_TEXT_BASE=0xF7F60000,RESET_VECTOR_ADDRESS=0xF7FFFFFC,INIT_TLB=board/xilinx/ppc440-generic/init.o CRAYL1 powerpc ppc4xx L1 cray CATcenter powerpc ppc4xx PPChameleonEVB dave - CATcenter:PPCHAMELEON_MODULE_MODEL=1 @@ -736,11 +736,11 @@ p3p440 powerpc ppc4xx - prodriv KAREF powerpc ppc4xx karef sandburst METROBOX powerpc ppc4xx metrobox sandburst xpedite1000 powerpc ppc4xx - xes -ml507 powerpc ppc4xx ml507 xilinx - ml507:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x03FFFFFC,BOOT_FROM_XMD=1,INIT_TLB=board/xilinx/ppc440-generic/init.o +ml507 powerpc ppc4xx ml507 xilinx - ml507:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x04100000,BOOT_FROM_XMD=1,INIT_TLB=board/xilinx/ppc440-generic/init.o ml507_flash powerpc ppc4xx ml507 xilinx - ml507:SYS_TEXT_BASE=0xF7F60000,RESET_VECTOR_ADDRESS=0xF7FFFFFC,INIT_TLB=board/xilinx/ppc440-generic/init.o -xilinx-ppc405-generic powerpc ppc4xx ppc405-generic xilinx - xilinx-ppc405-generic:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x03FFFFFC +xilinx-ppc405-generic powerpc ppc4xx ppc405-generic xilinx - xilinx-ppc405-generic:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x04100000 xilinx-ppc405-generic_flash powerpc ppc4xx ppc405-generic xilinx - xilinx-ppc405-generic:SYS_TEXT_BASE=0xF7F60000,RESET_VECTOR_ADDRESS=0xF7FFFFFC -xilinx-ppc440-generic powerpc ppc4xx ppc440-generic xilinx - xilinx-ppc440-generic:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x03FFFFFC,BOOT_FROM_XMD=1 +xilinx-ppc440-generic powerpc ppc4xx ppc440-generic xilinx - xilinx-ppc440-generic:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x04100000,BOOT_FROM_XMD=1 xilinx-ppc440-generic_flash powerpc ppc4xx ppc440-generic xilinx - xilinx-ppc440-generic:SYS_TEXT_BASE=0xF7F60000,RESET_VECTOR_ADDRESS=0xF7FFFFFC rsk7203 sh sh2 rsk7203 renesas - mpr2 sh sh3 mpr2 - - -- 1.7.2.3

3 2

[U-Boot] [PATCH 1/8] pxa: move i2c driver to the common place
by Lei Wen 21 Apr '11

21 Apr '11

For better sharing with other platform other than pxa's, it is more convenient to put the driver to the common place. Signed-off-by: Lei Wen <leiwen(a)marvell.com> --- arch/arm/cpu/pxa/Makefile | 1 - arch/arm/cpu/pxa/i2c.c | 469 --------------------------------------------- drivers/i2c/Makefile | 1 + drivers/i2c/pxa_i2c.c | 469 +++++++++++++++++++++++++++++++++++++++++++++ include/configs/innokom.h | 1 + include/configs/xm250.h | 1 + 6 files changed, 472 insertions(+), 470 deletions(-) delete mode 100644 arch/arm/cpu/pxa/i2c.c create mode 100644 drivers/i2c/pxa_i2c.c diff --git a/arch/arm/cpu/pxa/Makefile b/arch/arm/cpu/pxa/Makefile index 49a6ed3..e8b59a3 100644 --- a/arch/arm/cpu/pxa/Makefile +++ b/arch/arm/cpu/pxa/Makefile @@ -28,7 +28,6 @@ LIB = $(obj)lib$(CPU).o START = start.o COBJS += cpu.o -COBJS += i2c.o COBJS += pxafb.o COBJS += timer.o COBJS += usb.o diff --git a/arch/arm/cpu/pxa/i2c.c b/arch/arm/cpu/pxa/i2c.c deleted file mode 100644 index 7aa49ae..0000000 --- a/arch/arm/cpu/pxa/i2c.c +++ /dev/null @@ -1,469 +0,0 @@ -/* - * (C) Copyright 2000 - * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio(a)tin.it - * - * (C) Copyright 2000 Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger(a)sysgo.de> - * - * (C) Copyright 2003 Pengutronix e.K. - * Robert Schwebel <r.schwebel(a)pengutronix.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 - * - * Back ported to the 8xx platform (from the 8260 platform) by - * Murray.Jensen(a)cmst.csiro.au, 27-Jan-01. - */ - -/* FIXME: this file is PXA255 specific! What about other XScales? */ - -#include <common.h> -#include <asm/io.h> - -#ifdef CONFIG_HARD_I2C - -/* - * - CONFIG_SYS_I2C_SPEED - * - I2C_PXA_SLAVE_ADDR - */ - -#include <asm/arch/hardware.h> -#include <asm/arch/pxa-regs.h> -#include <i2c.h> - -/*#define DEBUG_I2C 1 /###* activate local debugging output */ -#define I2C_PXA_SLAVE_ADDR 0x1 /* slave pxa unit address */ - -#if (CONFIG_SYS_I2C_SPEED == 400000) -#define I2C_ICR_INIT (ICR_FM | ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD | ICR_SCLE) -#else -#define I2C_ICR_INIT (ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD | ICR_SCLE) -#endif - -#define I2C_ISR_INIT 0x7FF - -#ifdef DEBUG_I2C -#define PRINTD(x) printf x -#else -#define PRINTD(x) -#endif - - -/* Shall the current transfer have a start/stop condition? */ -#define I2C_COND_NORMAL 0 -#define I2C_COND_START 1 -#define I2C_COND_STOP 2 - -/* Shall the current transfer be ack/nacked or being waited for it? */ -#define I2C_ACKNAK_WAITACK 1 -#define I2C_ACKNAK_SENDACK 2 -#define I2C_ACKNAK_SENDNAK 4 - -/* Specify who shall transfer the data (master or slave) */ -#define I2C_READ 0 -#define I2C_WRITE 1 - -/* All transfers are described by this data structure */ -struct i2c_msg { - u8 condition; - u8 acknack; - u8 direction; - u8 data; -}; - - -/** - * i2c_pxa_reset: - reset the host controller - * - */ - -static void i2c_reset( void ) -{ - writel(readl(ICR) & ~ICR_IUE, ICR); /* disable unit */ - writel(readl(ICR) | ICR_UR, ICR); /* reset the unit */ - udelay(100); - writel(readl(ICR) & ~ICR_IUE, ICR); /* disable unit */ -#ifdef CONFIG_CPU_MONAHANS - /* | CKENB_1_PWM1 | CKENB_0_PWM0); */ - writel(readl(CKENB) | (CKENB_4_I2C), CKENB); -#else /* CONFIG_CPU_MONAHANS */ - /* set the global I2C clock on */ - writel(readl(CKEN) | CKEN14_I2C, CKEN); -#endif - writel(I2C_PXA_SLAVE_ADDR, ISAR); /* set our slave address */ - writel(I2C_ICR_INIT, ICR); /* set control reg values */ - writel(I2C_ISR_INIT, ISR); /* set clear interrupt bits */ - writel(readl(ICR) | ICR_IUE, ICR); /* enable unit */ - udelay(100); -} - - -/** - * i2c_isr_set_cleared: - wait until certain bits of the I2C status register - * are set and cleared - * - * @return: 1 in case of success, 0 means timeout (no match within 10 ms). - */ -static int i2c_isr_set_cleared( unsigned long set_mask, unsigned long cleared_mask ) -{ - int timeout = 10000; - - while( ((ISR & set_mask)!=set_mask) || ((ISR & cleared_mask)!=0) ){ - udelay( 10 ); - if( timeout-- < 0 ) return 0; - } - - return 1; -} - - -/** - * i2c_transfer: - Transfer one byte over the i2c bus - * - * This function can tranfer a byte over the i2c bus in both directions. - * It is used by the public API functions. - * - * @return: 0: transfer successful - * -1: message is empty - * -2: transmit timeout - * -3: ACK missing - * -4: receive timeout - * -5: illegal parameters - * -6: bus is busy and couldn't be aquired - */ -int i2c_transfer(struct i2c_msg *msg) -{ - int ret; - - if (!msg) - goto transfer_error_msg_empty; - - switch(msg->direction) { - - case I2C_WRITE: - - /* check if bus is not busy */ - if (!i2c_isr_set_cleared(0,ISR_IBB)) - goto transfer_error_bus_busy; - - /* start transmission */ - writel(readl(ICR) & ~ICR_START, ICR); - writel(readl(ICR) & ~ICR_STOP, ICR); - writel(msg->data, IDBR); - if (msg->condition == I2C_COND_START) - writel(readl(ICR) | ICR_START, ICR); - if (msg->condition == I2C_COND_STOP) - writel(readl(ICR) | ICR_STOP, ICR); - if (msg->acknack == I2C_ACKNAK_SENDNAK) - writel(readl(ICR) | ICR_ACKNAK, ICR); - if (msg->acknack == I2C_ACKNAK_SENDACK) - writel(readl(ICR) & ~ICR_ACKNAK, ICR); - writel(readl(ICR) & ~ICR_ALDIE, ICR); - writel(readl(ICR) | ICR_TB, ICR); - - /* transmit register empty? */ - if (!i2c_isr_set_cleared(ISR_ITE,0)) - goto transfer_error_transmit_timeout; - - /* clear 'transmit empty' state */ - writel(readl(ISR) | ISR_ITE, ISR); - - /* wait for ACK from slave */ - if (msg->acknack == I2C_ACKNAK_WAITACK) - if (!i2c_isr_set_cleared(0,ISR_ACKNAK)) - goto transfer_error_ack_missing; - break; - - case I2C_READ: - - /* check if bus is not busy */ - if (!i2c_isr_set_cleared(0,ISR_IBB)) - goto transfer_error_bus_busy; - - /* start receive */ - writel(readl(ICR) & ~ICR_START, ICR); - writel(readl(ICR) & ~ICR_STOP, ICR); - if (msg->condition == I2C_COND_START) - writel(readl(ICR) | ICR_START, ICR); - if (msg->condition == I2C_COND_STOP) - writel(readl(ICR) | ICR_STOP, ICR); - if (msg->acknack == I2C_ACKNAK_SENDNAK) - writel(readl(ICR) | ICR_ACKNAK, ICR); - if (msg->acknack == I2C_ACKNAK_SENDACK) - writel(readl(ICR) & ~ICR_ACKNAK, ICR); - writel(readl(ICR) & ~ICR_ALDIE, ICR); - writel(readl(ICR) | ICR_TB, ICR); - - /* receive register full? */ - if (!i2c_isr_set_cleared(ISR_IRF,0)) - goto transfer_error_receive_timeout; - - msg->data = readl(IDBR); - - /* clear 'receive empty' state */ - writel(readl(ISR) | ISR_IRF, ISR); - - break; - - default: - - goto transfer_error_illegal_param; - - } - - return 0; - -transfer_error_msg_empty: - PRINTD(("i2c_transfer: error: 'msg' is empty\n")); - ret = -1; goto i2c_transfer_finish; - -transfer_error_transmit_timeout: - PRINTD(("i2c_transfer: error: transmit timeout\n")); - ret = -2; goto i2c_transfer_finish; - -transfer_error_ack_missing: - PRINTD(("i2c_transfer: error: ACK missing\n")); - ret = -3; goto i2c_transfer_finish; - -transfer_error_receive_timeout: - PRINTD(("i2c_transfer: error: receive timeout\n")); - ret = -4; goto i2c_transfer_finish; - -transfer_error_illegal_param: - PRINTD(("i2c_transfer: error: illegal parameters\n")); - ret = -5; goto i2c_transfer_finish; - -transfer_error_bus_busy: - PRINTD(("i2c_transfer: error: bus is busy\n")); - ret = -6; goto i2c_transfer_finish; - -i2c_transfer_finish: - PRINTD(("i2c_transfer: ISR: 0x%04x\n",ISR)); - i2c_reset(); - return ret; - -} - -/* ------------------------------------------------------------------------ */ -/* API Functions */ -/* ------------------------------------------------------------------------ */ - -void i2c_init(int speed, int slaveaddr) -{ -#ifdef CONFIG_SYS_I2C_INIT_BOARD - /* call board specific i2c bus reset routine before accessing the */ - /* environment, which might be in a chip on that bus. For details */ - /* about this problem see doc/I2C_Edge_Conditions. */ - i2c_init_board(); -#endif -} - - -/** - * i2c_probe: - Test if a chip answers for a given i2c address - * - * @chip: address of the chip which is searched for - * @return: 0 if a chip was found, -1 otherwhise - */ - -int i2c_probe(uchar chip) -{ - struct i2c_msg msg; - - i2c_reset(); - - msg.condition = I2C_COND_START; - msg.acknack = I2C_ACKNAK_WAITACK; - msg.direction = I2C_WRITE; - msg.data = (chip << 1) + 1; - if (i2c_transfer(&msg)) return -1; - - msg.condition = I2C_COND_STOP; - msg.acknack = I2C_ACKNAK_SENDNAK; - msg.direction = I2C_READ; - msg.data = 0x00; - if (i2c_transfer(&msg)) return -1; - - return 0; -} - - -/** - * i2c_read: - Read multiple bytes from an i2c device - * - * The higher level routines take into account that this function is only - * called with len < page length of the device (see configuration file) - * - * @chip: address of the chip which is to be read - * @addr: i2c data address within the chip - * @alen: length of the i2c data address (1..2 bytes) - * @buffer: where to write the data - * @len: how much byte do we want to read - * @return: 0 in case of success - */ - -int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len) -{ - struct i2c_msg msg; - u8 addr_bytes[3]; /* lowest...highest byte of data address */ - int ret; - - PRINTD(("i2c_read(chip=0x%02x, addr=0x%02x, alen=0x%02x, len=0x%02x)\n",chip,addr,alen,len)); - - i2c_reset(); - - /* dummy chip address write */ - PRINTD(("i2c_read: dummy chip address write\n")); - msg.condition = I2C_COND_START; - msg.acknack = I2C_ACKNAK_WAITACK; - msg.direction = I2C_WRITE; - msg.data = (chip << 1); - msg.data &= 0xFE; - if ((ret=i2c_transfer(&msg))) return -1; - - /* - * send memory address bytes; - * alen defines how much bytes we have to send. - */ - /*addr &= ((1 << CONFIG_SYS_EEPROM_PAGE_WRITE_BITS)-1); */ - addr_bytes[0] = (u8)((addr >> 0) & 0x000000FF); - addr_bytes[1] = (u8)((addr >> 8) & 0x000000FF); - addr_bytes[2] = (u8)((addr >> 16) & 0x000000FF); - - while (--alen >= 0) { - - PRINTD(("i2c_read: send memory word address byte %1d\n",alen)); - msg.condition = I2C_COND_NORMAL; - msg.acknack = I2C_ACKNAK_WAITACK; - msg.direction = I2C_WRITE; - msg.data = addr_bytes[alen]; - if ((ret=i2c_transfer(&msg))) return -1; - } - - - /* start read sequence */ - PRINTD(("i2c_read: start read sequence\n")); - msg.condition = I2C_COND_START; - msg.acknack = I2C_ACKNAK_WAITACK; - msg.direction = I2C_WRITE; - msg.data = (chip << 1); - msg.data |= 0x01; - if ((ret=i2c_transfer(&msg))) return -1; - - /* read bytes; send NACK at last byte */ - while (len--) { - - if (len==0) { - msg.condition = I2C_COND_STOP; - msg.acknack = I2C_ACKNAK_SENDNAK; - } else { - msg.condition = I2C_COND_NORMAL; - msg.acknack = I2C_ACKNAK_SENDACK; - } - - msg.direction = I2C_READ; - msg.data = 0x00; - if ((ret=i2c_transfer(&msg))) return -1; - - *buffer = msg.data; - PRINTD(("i2c_read: reading byte (0x%08x)=0x%02x\n",(unsigned int)buffer,*buffer)); - buffer++; - - } - - i2c_reset(); - - return 0; -} - - -/** - * i2c_write: - Write multiple bytes to an i2c device - * - * The higher level routines take into account that this function is only - * called with len < page length of the device (see configuration file) - * - * @chip: address of the chip which is to be written - * @addr: i2c data address within the chip - * @alen: length of the i2c data address (1..2 bytes) - * @buffer: where to find the data to be written - * @len: how much byte do we want to read - * @return: 0 in case of success - */ - -int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len) -{ - struct i2c_msg msg; - u8 addr_bytes[3]; /* lowest...highest byte of data address */ - - PRINTD(("i2c_write(chip=0x%02x, addr=0x%02x, alen=0x%02x, len=0x%02x)\n",chip,addr,alen,len)); - - i2c_reset(); - - /* chip address write */ - PRINTD(("i2c_write: chip address write\n")); - msg.condition = I2C_COND_START; - msg.acknack = I2C_ACKNAK_WAITACK; - msg.direction = I2C_WRITE; - msg.data = (chip << 1); - msg.data &= 0xFE; - if (i2c_transfer(&msg)) return -1; - - /* - * send memory address bytes; - * alen defines how much bytes we have to send. - */ - addr_bytes[0] = (u8)((addr >> 0) & 0x000000FF); - addr_bytes[1] = (u8)((addr >> 8) & 0x000000FF); - addr_bytes[2] = (u8)((addr >> 16) & 0x000000FF); - - while (--alen >= 0) { - - PRINTD(("i2c_write: send memory word address\n")); - msg.condition = I2C_COND_NORMAL; - msg.acknack = I2C_ACKNAK_WAITACK; - msg.direction = I2C_WRITE; - msg.data = addr_bytes[alen]; - if (i2c_transfer(&msg)) return -1; - } - - /* write bytes; send NACK at last byte */ - while (len--) { - - PRINTD(("i2c_write: writing byte (0x%08x)=0x%02x\n",(unsigned int)buffer,*buffer)); - - if (len==0) - msg.condition = I2C_COND_STOP; - else - msg.condition = I2C_COND_NORMAL; - - msg.acknack = I2C_ACKNAK_WAITACK; - msg.direction = I2C_WRITE; - msg.data = *(buffer++); - - if (i2c_transfer(&msg)) return -1; - - } - - i2c_reset(); - - return 0; - -} - -#endif /* CONFIG_HARD_I2C */ diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile index 052fe36..16308ac 100644 --- a/drivers/i2c/Makefile +++ b/drivers/i2c/Makefile @@ -35,6 +35,7 @@ COBJS-$(CONFIG_DRIVER_OMAP24XX_I2C) += omap24xx_i2c.o COBJS-$(CONFIG_DRIVER_OMAP34XX_I2C) += omap24xx_i2c.o COBJS-$(CONFIG_PCA9564_I2C) += pca9564_i2c.o COBJS-$(CONFIG_PPC4XX_I2C) += ppc4xx_i2c.o +COBJS-$(CONFIG_PXA_I2C) += pxa_i2c.o COBJS-$(CONFIG_DRIVER_S3C24X0_I2C) += s3c24x0_i2c.o COBJS-$(CONFIG_S3C44B0_I2C) += s3c44b0_i2c.o COBJS-$(CONFIG_SOFT_I2C) += soft_i2c.o diff --git a/drivers/i2c/pxa_i2c.c b/drivers/i2c/pxa_i2c.c new file mode 100644 index 0000000..7aa49ae --- /dev/null +++ b/drivers/i2c/pxa_i2c.c @@ -0,0 +1,469 @@ +/* + * (C) Copyright 2000 + * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio(a)tin.it + * + * (C) Copyright 2000 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger(a)sysgo.de> + * + * (C) Copyright 2003 Pengutronix e.K. + * Robert Schwebel <r.schwebel(a)pengutronix.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 + * + * Back ported to the 8xx platform (from the 8260 platform) by + * Murray.Jensen(a)cmst.csiro.au, 27-Jan-01. + */ + +/* FIXME: this file is PXA255 specific! What about other XScales? */ + +#include <common.h> +#include <asm/io.h> + +#ifdef CONFIG_HARD_I2C + +/* + * - CONFIG_SYS_I2C_SPEED + * - I2C_PXA_SLAVE_ADDR + */ + +#include <asm/arch/hardware.h> +#include <asm/arch/pxa-regs.h> +#include <i2c.h> + +/*#define DEBUG_I2C 1 /###* activate local debugging output */ +#define I2C_PXA_SLAVE_ADDR 0x1 /* slave pxa unit address */ + +#if (CONFIG_SYS_I2C_SPEED == 400000) +#define I2C_ICR_INIT (ICR_FM | ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD | ICR_SCLE) +#else +#define I2C_ICR_INIT (ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD | ICR_SCLE) +#endif + +#define I2C_ISR_INIT 0x7FF + +#ifdef DEBUG_I2C +#define PRINTD(x) printf x +#else +#define PRINTD(x) +#endif + + +/* Shall the current transfer have a start/stop condition? */ +#define I2C_COND_NORMAL 0 +#define I2C_COND_START 1 +#define I2C_COND_STOP 2 + +/* Shall the current transfer be ack/nacked or being waited for it? */ +#define I2C_ACKNAK_WAITACK 1 +#define I2C_ACKNAK_SENDACK 2 +#define I2C_ACKNAK_SENDNAK 4 + +/* Specify who shall transfer the data (master or slave) */ +#define I2C_READ 0 +#define I2C_WRITE 1 + +/* All transfers are described by this data structure */ +struct i2c_msg { + u8 condition; + u8 acknack; + u8 direction; + u8 data; +}; + + +/** + * i2c_pxa_reset: - reset the host controller + * + */ + +static void i2c_reset( void ) +{ + writel(readl(ICR) & ~ICR_IUE, ICR); /* disable unit */ + writel(readl(ICR) | ICR_UR, ICR); /* reset the unit */ + udelay(100); + writel(readl(ICR) & ~ICR_IUE, ICR); /* disable unit */ +#ifdef CONFIG_CPU_MONAHANS + /* | CKENB_1_PWM1 | CKENB_0_PWM0); */ + writel(readl(CKENB) | (CKENB_4_I2C), CKENB); +#else /* CONFIG_CPU_MONAHANS */ + /* set the global I2C clock on */ + writel(readl(CKEN) | CKEN14_I2C, CKEN); +#endif + writel(I2C_PXA_SLAVE_ADDR, ISAR); /* set our slave address */ + writel(I2C_ICR_INIT, ICR); /* set control reg values */ + writel(I2C_ISR_INIT, ISR); /* set clear interrupt bits */ + writel(readl(ICR) | ICR_IUE, ICR); /* enable unit */ + udelay(100); +} + + +/** + * i2c_isr_set_cleared: - wait until certain bits of the I2C status register + * are set and cleared + * + * @return: 1 in case of success, 0 means timeout (no match within 10 ms). + */ +static int i2c_isr_set_cleared( unsigned long set_mask, unsigned long cleared_mask ) +{ + int timeout = 10000; + + while( ((ISR & set_mask)!=set_mask) || ((ISR & cleared_mask)!=0) ){ + udelay( 10 ); + if( timeout-- < 0 ) return 0; + } + + return 1; +} + + +/** + * i2c_transfer: - Transfer one byte over the i2c bus + * + * This function can tranfer a byte over the i2c bus in both directions. + * It is used by the public API functions. + * + * @return: 0: transfer successful + * -1: message is empty + * -2: transmit timeout + * -3: ACK missing + * -4: receive timeout + * -5: illegal parameters + * -6: bus is busy and couldn't be aquired + */ +int i2c_transfer(struct i2c_msg *msg) +{ + int ret; + + if (!msg) + goto transfer_error_msg_empty; + + switch(msg->direction) { + + case I2C_WRITE: + + /* check if bus is not busy */ + if (!i2c_isr_set_cleared(0,ISR_IBB)) + goto transfer_error_bus_busy; + + /* start transmission */ + writel(readl(ICR) & ~ICR_START, ICR); + writel(readl(ICR) & ~ICR_STOP, ICR); + writel(msg->data, IDBR); + if (msg->condition == I2C_COND_START) + writel(readl(ICR) | ICR_START, ICR); + if (msg->condition == I2C_COND_STOP) + writel(readl(ICR) | ICR_STOP, ICR); + if (msg->acknack == I2C_ACKNAK_SENDNAK) + writel(readl(ICR) | ICR_ACKNAK, ICR); + if (msg->acknack == I2C_ACKNAK_SENDACK) + writel(readl(ICR) & ~ICR_ACKNAK, ICR); + writel(readl(ICR) & ~ICR_ALDIE, ICR); + writel(readl(ICR) | ICR_TB, ICR); + + /* transmit register empty? */ + if (!i2c_isr_set_cleared(ISR_ITE,0)) + goto transfer_error_transmit_timeout; + + /* clear 'transmit empty' state */ + writel(readl(ISR) | ISR_ITE, ISR); + + /* wait for ACK from slave */ + if (msg->acknack == I2C_ACKNAK_WAITACK) + if (!i2c_isr_set_cleared(0,ISR_ACKNAK)) + goto transfer_error_ack_missing; + break; + + case I2C_READ: + + /* check if bus is not busy */ + if (!i2c_isr_set_cleared(0,ISR_IBB)) + goto transfer_error_bus_busy; + + /* start receive */ + writel(readl(ICR) & ~ICR_START, ICR); + writel(readl(ICR) & ~ICR_STOP, ICR); + if (msg->condition == I2C_COND_START) + writel(readl(ICR) | ICR_START, ICR); + if (msg->condition == I2C_COND_STOP) + writel(readl(ICR) | ICR_STOP, ICR); + if (msg->acknack == I2C_ACKNAK_SENDNAK) + writel(readl(ICR) | ICR_ACKNAK, ICR); + if (msg->acknack == I2C_ACKNAK_SENDACK) + writel(readl(ICR) & ~ICR_ACKNAK, ICR); + writel(readl(ICR) & ~ICR_ALDIE, ICR); + writel(readl(ICR) | ICR_TB, ICR); + + /* receive register full? */ + if (!i2c_isr_set_cleared(ISR_IRF,0)) + goto transfer_error_receive_timeout; + + msg->data = readl(IDBR); + + /* clear 'receive empty' state */ + writel(readl(ISR) | ISR_IRF, ISR); + + break; + + default: + + goto transfer_error_illegal_param; + + } + + return 0; + +transfer_error_msg_empty: + PRINTD(("i2c_transfer: error: 'msg' is empty\n")); + ret = -1; goto i2c_transfer_finish; + +transfer_error_transmit_timeout: + PRINTD(("i2c_transfer: error: transmit timeout\n")); + ret = -2; goto i2c_transfer_finish; + +transfer_error_ack_missing: + PRINTD(("i2c_transfer: error: ACK missing\n")); + ret = -3; goto i2c_transfer_finish; + +transfer_error_receive_timeout: + PRINTD(("i2c_transfer: error: receive timeout\n")); + ret = -4; goto i2c_transfer_finish; + +transfer_error_illegal_param: + PRINTD(("i2c_transfer: error: illegal parameters\n")); + ret = -5; goto i2c_transfer_finish; + +transfer_error_bus_busy: + PRINTD(("i2c_transfer: error: bus is busy\n")); + ret = -6; goto i2c_transfer_finish; + +i2c_transfer_finish: + PRINTD(("i2c_transfer: ISR: 0x%04x\n",ISR)); + i2c_reset(); + return ret; + +} + +/* ------------------------------------------------------------------------ */ +/* API Functions */ +/* ------------------------------------------------------------------------ */ + +void i2c_init(int speed, int slaveaddr) +{ +#ifdef CONFIG_SYS_I2C_INIT_BOARD + /* call board specific i2c bus reset routine before accessing the */ + /* environment, which might be in a chip on that bus. For details */ + /* about this problem see doc/I2C_Edge_Conditions. */ + i2c_init_board(); +#endif +} + + +/** + * i2c_probe: - Test if a chip answers for a given i2c address + * + * @chip: address of the chip which is searched for + * @return: 0 if a chip was found, -1 otherwhise + */ + +int i2c_probe(uchar chip) +{ + struct i2c_msg msg; + + i2c_reset(); + + msg.condition = I2C_COND_START; + msg.acknack = I2C_ACKNAK_WAITACK; + msg.direction = I2C_WRITE; + msg.data = (chip << 1) + 1; + if (i2c_transfer(&msg)) return -1; + + msg.condition = I2C_COND_STOP; + msg.acknack = I2C_ACKNAK_SENDNAK; + msg.direction = I2C_READ; + msg.data = 0x00; + if (i2c_transfer(&msg)) return -1; + + return 0; +} + + +/** + * i2c_read: - Read multiple bytes from an i2c device + * + * The higher level routines take into account that this function is only + * called with len < page length of the device (see configuration file) + * + * @chip: address of the chip which is to be read + * @addr: i2c data address within the chip + * @alen: length of the i2c data address (1..2 bytes) + * @buffer: where to write the data + * @len: how much byte do we want to read + * @return: 0 in case of success + */ + +int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len) +{ + struct i2c_msg msg; + u8 addr_bytes[3]; /* lowest...highest byte of data address */ + int ret; + + PRINTD(("i2c_read(chip=0x%02x, addr=0x%02x, alen=0x%02x, len=0x%02x)\n",chip,addr,alen,len)); + + i2c_reset(); + + /* dummy chip address write */ + PRINTD(("i2c_read: dummy chip address write\n")); + msg.condition = I2C_COND_START; + msg.acknack = I2C_ACKNAK_WAITACK; + msg.direction = I2C_WRITE; + msg.data = (chip << 1); + msg.data &= 0xFE; + if ((ret=i2c_transfer(&msg))) return -1; + + /* + * send memory address bytes; + * alen defines how much bytes we have to send. + */ + /*addr &= ((1 << CONFIG_SYS_EEPROM_PAGE_WRITE_BITS)-1); */ + addr_bytes[0] = (u8)((addr >> 0) & 0x000000FF); + addr_bytes[1] = (u8)((addr >> 8) & 0x000000FF); + addr_bytes[2] = (u8)((addr >> 16) & 0x000000FF); + + while (--alen >= 0) { + + PRINTD(("i2c_read: send memory word address byte %1d\n",alen)); + msg.condition = I2C_COND_NORMAL; + msg.acknack = I2C_ACKNAK_WAITACK; + msg.direction = I2C_WRITE; + msg.data = addr_bytes[alen]; + if ((ret=i2c_transfer(&msg))) return -1; + } + + + /* start read sequence */ + PRINTD(("i2c_read: start read sequence\n")); + msg.condition = I2C_COND_START; + msg.acknack = I2C_ACKNAK_WAITACK; + msg.direction = I2C_WRITE; + msg.data = (chip << 1); + msg.data |= 0x01; + if ((ret=i2c_transfer(&msg))) return -1; + + /* read bytes; send NACK at last byte */ + while (len--) { + + if (len==0) { + msg.condition = I2C_COND_STOP; + msg.acknack = I2C_ACKNAK_SENDNAK; + } else { + msg.condition = I2C_COND_NORMAL; + msg.acknack = I2C_ACKNAK_SENDACK; + } + + msg.direction = I2C_READ; + msg.data = 0x00; + if ((ret=i2c_transfer(&msg))) return -1; + + *buffer = msg.data; + PRINTD(("i2c_read: reading byte (0x%08x)=0x%02x\n",(unsigned int)buffer,*buffer)); + buffer++; + + } + + i2c_reset(); + + return 0; +} + + +/** + * i2c_write: - Write multiple bytes to an i2c device + * + * The higher level routines take into account that this function is only + * called with len < page length of the device (see configuration file) + * + * @chip: address of the chip which is to be written + * @addr: i2c data address within the chip + * @alen: length of the i2c data address (1..2 bytes) + * @buffer: where to find the data to be written + * @len: how much byte do we want to read + * @return: 0 in case of success + */ + +int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len) +{ + struct i2c_msg msg; + u8 addr_bytes[3]; /* lowest...highest byte of data address */ + + PRINTD(("i2c_write(chip=0x%02x, addr=0x%02x, alen=0x%02x, len=0x%02x)\n",chip,addr,alen,len)); + + i2c_reset(); + + /* chip address write */ + PRINTD(("i2c_write: chip address write\n")); + msg.condition = I2C_COND_START; + msg.acknack = I2C_ACKNAK_WAITACK; + msg.direction = I2C_WRITE; + msg.data = (chip << 1); + msg.data &= 0xFE; + if (i2c_transfer(&msg)) return -1; + + /* + * send memory address bytes; + * alen defines how much bytes we have to send. + */ + addr_bytes[0] = (u8)((addr >> 0) & 0x000000FF); + addr_bytes[1] = (u8)((addr >> 8) & 0x000000FF); + addr_bytes[2] = (u8)((addr >> 16) & 0x000000FF); + + while (--alen >= 0) { + + PRINTD(("i2c_write: send memory word address\n")); + msg.condition = I2C_COND_NORMAL; + msg.acknack = I2C_ACKNAK_WAITACK; + msg.direction = I2C_WRITE; + msg.data = addr_bytes[alen]; + if (i2c_transfer(&msg)) return -1; + } + + /* write bytes; send NACK at last byte */ + while (len--) { + + PRINTD(("i2c_write: writing byte (0x%08x)=0x%02x\n",(unsigned int)buffer,*buffer)); + + if (len==0) + msg.condition = I2C_COND_STOP; + else + msg.condition = I2C_COND_NORMAL; + + msg.acknack = I2C_ACKNAK_WAITACK; + msg.direction = I2C_WRITE; + msg.data = *(buffer++); + + if (i2c_transfer(&msg)) return -1; + + } + + i2c_reset(); + + return 0; + +} + +#endif /* CONFIG_HARD_I2C */ diff --git a/include/configs/innokom.h b/include/configs/innokom.h index d8fcbdb..57d633c 100644 --- a/include/configs/innokom.h +++ b/include/configs/innokom.h @@ -140,6 +140,7 @@ /* * I2C bus */ +#define CONFIG_PXA_I2C 1 #define CONFIG_HARD_I2C 1 #define CONFIG_SYS_I2C_SPEED 50000 #define CONFIG_SYS_I2C_SLAVE 0xfe diff --git a/include/configs/xm250.h b/include/configs/xm250.h index 497cb91..7a7c539 100644 --- a/include/configs/xm250.h +++ b/include/configs/xm250.h @@ -61,6 +61,7 @@ /* * I2C bus */ +#define CONFIG_PXA_I2C 1 #define CONFIG_HARD_I2C 1 #define CONFIG_SYS_I2C_SPEED 50000 #define CONFIG_SYS_I2C_SLAVE 0xfe -- 1.7.0.4

9 122

[U-Boot] [PATCH] tools/env: fix redundant env flag comparison
by Jon Povey 21 Apr '11

21 Apr '11

This fixes two bugs with comparison of redundant environment flags on read. flag0 and flag1 in fw_env_open() were declared signed instead of unsigned char breaking BOOLEAN mode "== 0xFF" tests and in INCREMENTAL mode the wrong environment would be chosen where the flag values are 127 and 128 (either way round). With both flags over 128, both signs flipped and the logic worked by happy accident. Also there was a logic bug in the INCREMENTAL test (after signedness was fixed) in the case flag0=0, flag1=255, env 1 would be incorrectly chosen. Fix both of these. Signed-off-by: Jon Povey <jon.povey(a)racelogic.co.uk> --- After my gripe yesterday, something more constructive: I confirmed these bugs with a little test program in C, can send that if anyone wants it. At a glance it looks like the main u-boot env handling does not have these bugs. tools/env/fw_env.c | 13 ++++++------- 1 files changed, 6 insertions(+), 7 deletions(-) diff --git a/tools/env/fw_env.c b/tools/env/fw_env.c index 8ff7052..315d7ce 100644 --- a/tools/env/fw_env.c +++ b/tools/env/fw_env.c @@ -1067,11 +1067,11 @@ static char *envmatch (char * s1, char * s2) int fw_env_open(void) { int crc0, crc0_ok; - char flag0; + unsigned char flag0; void *addr0; int crc1, crc1_ok; - char flag1; + unsigned char flag1; void *addr1; struct env_image_single *single; @@ -1182,14 +1182,13 @@ int fw_env_open(void) } break; case FLAG_INCREMENTAL: - if ((flag0 == 255 && flag1 == 0) || - flag1 > flag0) + if (flag0 == 255 && flag1 == 0) dev_current = 1; else if ((flag1 == 255 && flag0 == 0) || - flag0 > flag1) - dev_current = 0; - else /* flags are equal - almost impossible */ + flag0 >= flag1) dev_current = 0; + else /* flag1 > flag0 */ + dev_current = 1; break; default: fprintf (stderr, "Unknown flag scheme %u \n", -- 1.6.3.3

2 1

[U-Boot] [PATCH 0/5] Add target EDOSK2674
by Yoshinori Sato 21 Apr '11

21 Apr '11

Hi lists, This patches added new target EDOSK2674. Please comments. Thanks. Yoshinori Sato (5): Add h8300 architecture part1 - core Add h8300 architecture part2 - headers Add h8300 architecture part3 - misc standard SCI support Add target edosk2674 arch/h8300/config.mk | 35 +++++++ arch/h8300/cpu/h8300s/Makefile | 53 ++++++++++ arch/h8300/cpu/h8300s/config.mk | 26 +++++ arch/h8300/cpu/h8300s/cpu.c | 83 +++++++++++++++ arch/h8300/cpu/h8300s/interrupts.c | 38 +++++++ arch/h8300/cpu/h8300s/start.S | 87 ++++++++++++++++ arch/h8300/cpu/h8300s/watchdog.c | 36 +++++++ arch/h8300/include/asm/bitops.h | 186 ++++++++++++++++++++++++++++++++++ arch/h8300/include/asm/byteorder.h | 6 + arch/h8300/include/asm/config.h | 26 +++++ arch/h8300/include/asm/global_data.h | 55 ++++++++++ arch/h8300/include/asm/io.h | 178 ++++++++++++++++++++++++++++++++ arch/h8300/include/asm/posix_types.h | 123 ++++++++++++++++++++++ arch/h8300/include/asm/processor.h | 4 + arch/h8300/include/asm/ptrace.h | 64 ++++++++++++ arch/h8300/include/asm/string.h | 41 ++++++++ arch/h8300/include/asm/types.h | 62 +++++++++++ arch/h8300/include/asm/u-boot.h | 41 ++++++++ arch/h8300/include/asm/unaligned.h | 10 ++ arch/h8300/lib/Makefile | 43 ++++++++ arch/h8300/lib/board.c | 158 +++++++++++++++++++++++++++++ arch/h8300/lib/bootm.c | 70 +++++++++++++ arch/h8300/lib/time.c | 87 ++++++++++++++++ board/edosk2674/Makefile | 48 +++++++++ board/edosk2674/config.mk | 25 +++++ board/edosk2674/edosk2674.c | 63 ++++++++++++ board/edosk2674/lowlevel_init.S | 84 +++++++++++++++ board/edosk2674/u-boot.lds | 84 +++++++++++++++ boards.cfg | 1 + common/cmd_bdinfo.c | 20 ++++ common/cmd_bootm.c | 2 + drivers/net/lan91c96.h | 21 ++++ drivers/serial/serial_sh.c | 74 ++++++++++++-- drivers/serial/serial_sh.h | 93 ++++++----------- examples/standalone/Makefile | 3 +- examples/standalone/stubs.c | 20 ++++- include/configs/edosk2674.h | 104 +++++++++++++++++++ include/image.h | 5 + 38 files changed, 2086 insertions(+), 73 deletions(-) create mode 100644 arch/h8300/config.mk create mode 100644 arch/h8300/cpu/h8300s/Makefile create mode 100644 arch/h8300/cpu/h8300s/config.mk create mode 100644 arch/h8300/cpu/h8300s/cpu.c create mode 100644 arch/h8300/cpu/h8300s/interrupts.c create mode 100644 arch/h8300/cpu/h8300s/start.S create mode 100644 arch/h8300/cpu/h8300s/watchdog.c create mode 100644 arch/h8300/include/asm/bitops.h create mode 100644 arch/h8300/include/asm/byteorder.h create mode 100644 arch/h8300/include/asm/config.h create mode 100644 arch/h8300/include/asm/global_data.h create mode 100644 arch/h8300/include/asm/io.h create mode 100644 arch/h8300/include/asm/posix_types.h create mode 100644 arch/h8300/include/asm/processor.h create mode 100644 arch/h8300/include/asm/ptrace.h create mode 100644 arch/h8300/include/asm/string.h create mode 100644 arch/h8300/include/asm/types.h create mode 100644 arch/h8300/include/asm/u-boot.h create mode 100644 arch/h8300/include/asm/unaligned.h create mode 100644 arch/h8300/lib/Makefile create mode 100644 arch/h8300/lib/board.c create mode 100644 arch/h8300/lib/bootm.c create mode 100644 arch/h8300/lib/time.c create mode 100644 board/edosk2674/Makefile create mode 100644 board/edosk2674/config.mk create mode 100644 board/edosk2674/edosk2674.c create mode 100644 board/edosk2674/lowlevel_init.S create mode 100644 board/edosk2674/u-boot.lds create mode 100644 include/configs/edosk2674.h -- 1.7.2.3

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[U-Boot] [PATCH] BeagleBoard: Added LED driver
by Jason Kridner 21 Apr '11

21 Apr '11

Added LED driver using status_led. USR0 is set to monitor the boot status. USR1 is set to be the green LED. Included adding configuration and command to the default configuration. Signed-off-by: Jason Kridner <jkridner(a)beagleboard.org> --- board/ti/beagle/Makefile | 4 +- board/ti/beagle/beagle.c | 7 +++ board/ti/beagle/led.c | 91 ++++++++++++++++++++++++++++++++++++++++ include/configs/omap3_beagle.h | 13 ++++++ 4 files changed, 114 insertions(+), 1 deletions(-) create mode 100644 board/ti/beagle/led.c diff --git a/board/ti/beagle/Makefile b/board/ti/beagle/Makefile index 3b4aaac..d9f445f 100644 --- a/board/ti/beagle/Makefile +++ b/board/ti/beagle/Makefile @@ -25,8 +25,10 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(BOARD).o -COBJS := beagle.o +COBJS-y := $(BOARD).o +COBJS-$(CONFIG_STATUS_LED) += led.o +COBJS := $(sort $(COBJS-y)) SRCS := $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS)) diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c index 93c452e..dd7b6b5 100644 --- a/board/ti/beagle/beagle.c +++ b/board/ti/beagle/beagle.c @@ -30,6 +30,9 @@ * MA 02111-1307 USA */ #include <common.h> +#ifdef CONFIG_STATUS_LED +#include <status_led.h> +#endif #include <twl4030.h> #include <asm/io.h> #include <asm/arch/mmc_host_def.h> @@ -78,6 +81,10 @@ int board_init(void) /* boot param addr */ gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); +#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT) + status_led_set (STATUS_LED_BOOT, STATUS_LED_ON); +#endif + return 0; } diff --git a/board/ti/beagle/led.c b/board/ti/beagle/led.c new file mode 100644 index 0000000..df26552 --- /dev/null +++ b/board/ti/beagle/led.c @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2010 Texas Instruments, Inc. + * Jason Kridner <jkridner(a)beagleboard.org> + * + * 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 + */ +#include <common.h> +#include <status_led.h> +#include <asm/arch/cpu.h> +#include <asm/io.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/gpio.h> + +static unsigned int saved_state[2] = {STATUS_LED_OFF, STATUS_LED_OFF}; + +/* GPIO pins for the LEDs */ +#define BEAGLE_LED_USR0 149 +#define BEAGLE_LED_USR1 150 + +#ifdef STATUS_LED_GREEN +void green_LED_off (void) +{ + __led_set (STATUS_LED_GREEN, 0); +} + +void green_LED_on (void) +{ + __led_set (STATUS_LED_GREEN, 1); +} +#endif + +void __led_init (led_id_t mask, int state) +{ + __led_set (mask, state); +} + +void __led_toggle (led_id_t mask) +{ +#ifdef STATUS_LED_BIT + if (STATUS_LED_BIT & mask) { + if (STATUS_LED_ON == saved_state[0]) + __led_set(STATUS_LED_BIT, 0); + else + __led_set(STATUS_LED_BIT, 1); + } +#endif +#ifdef STATUS_LED_BIT1 + if (STATUS_LED_BIT1 & mask) { + if (STATUS_LED_ON == saved_state[1]) + __led_set(STATUS_LED_BIT1, 0); + else + __led_set(STATUS_LED_BIT1, 1); + } +#endif +} + +void __led_set (led_id_t mask, int state) +{ +#ifdef STATUS_LED_BIT + if (STATUS_LED_BIT & mask) { + if (!omap_request_gpio(BEAGLE_LED_USR0)) { + omap_set_gpio_direction(BEAGLE_LED_USR0, 0); + omap_set_gpio_dataout(BEAGLE_LED_USR0, state); + } + saved_state[0] = state; + } +#endif +#ifdef STATUS_LED_BIT1 + if (STATUS_LED_BIT1 & mask) { + if (!omap_request_gpio(BEAGLE_LED_USR1)) { + omap_set_gpio_direction(BEAGLE_LED_USR1, 0); + omap_set_gpio_dataout(BEAGLE_LED_USR1, state); + } + saved_state[1] = state; + } +#endif +} + diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h index 56363f7..6527cd9 100644 --- a/include/configs/omap3_beagle.h +++ b/include/configs/omap3_beagle.h @@ -108,6 +108,18 @@ #define CONFIG_OMAP_HSMMC 1 #define CONFIG_DOS_PARTITION 1 +/* Status LED */ +#define CONFIG_STATUS_LED 1 +#define CONFIG_BOARD_SPECIFIC_LED 1 +#define STATUS_LED_BIT 0x01 +#define STATUS_LED_STATE STATUS_LED_ON +#define STATUS_LED_PERIOD (CONFIG_SYS_HZ / 2) +#define STATUS_LED_BIT1 0x02 +#define STATUS_LED_STATE1 STATUS_LED_ON +#define STATUS_LED_PERIOD1 (CONFIG_SYS_HZ / 2) +#define STATUS_LED_BOOT STATUS_LED_BIT +#define STATUS_LED_GREEN STATUS_LED_BIT1 + /* DDR - I use Micron DDR */ #define CONFIG_OMAP3_MICRON_DDR 1 @@ -138,6 +150,7 @@ #define CONFIG_CMD_I2C /* I2C serial bus support */ #define CONFIG_CMD_MMC /* MMC support */ #define CONFIG_CMD_NAND /* NAND support */ +#define CONFIG_CMD_LED /* LED support */ #undef CONFIG_CMD_FLASH /* flinfo, erase, protect */ #undef CONFIG_CMD_FPGA /* FPGA configuration Support */ -- 1.5.6.4

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[U-Boot] [PATCH] Add 'led' command
by Jason Kridner 21 Apr '11

21 Apr '11

This patch allows any board implementing the coloured LED API to control the LEDs from the console. led [green | yellow | red | all ] [ on | off ] or led [ 1 | 2 | 3 | all ] [ on | off ] Adds configuration item CONFIG_CMD_LED enabling the command. Partially based on patch from Ulf Samuelsson: http://www.mail-archive.com/u-boot@lists.denx.de/msg09593.html. Updated based on feedback: http://www.mail-archive.com/u-boot@lists.denx.de/msg41847.html https://groups.google.com/d/topic/beagleboard/8Wf1HiK_QBo/discussion * Fixed a handful of style issues. * Significantly reduced the number of #ifdefs and redundant code * Converted redundant code into loops test against a structure * Made use of cmd_usage() * Introduced a str_onoff() function, but haven't yet put it in common * Eliminated trailing newline Signed-off-by: Jason Kridner <jkridner(a)beagleboard.org> --- common/Makefile | 1 + common/cmd_led.c | 153 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 154 insertions(+), 0 deletions(-) create mode 100644 common/cmd_led.c diff --git a/common/Makefile b/common/Makefile index abea91c..762aba4 100644 --- a/common/Makefile +++ b/common/Makefile @@ -105,6 +105,7 @@ COBJS-$(CONFIG_CMD_IRQ) += cmd_irq.o COBJS-$(CONFIG_CMD_ITEST) += cmd_itest.o COBJS-$(CONFIG_CMD_JFFS2) += cmd_jffs2.o COBJS-$(CONFIG_CMD_CRAMFS) += cmd_cramfs.o +COBJS-$(CONFIG_CMD_LED) += cmd_led.o COBJS-$(CONFIG_CMD_LICENSE) += cmd_license.o COBJS-y += cmd_load.o COBJS-$(CONFIG_LOGBUFFER) += cmd_log.o diff --git a/common/cmd_led.c b/common/cmd_led.c new file mode 100644 index 0000000..f1e8a62 --- /dev/null +++ b/common/cmd_led.c @@ -0,0 +1,153 @@ +/* + * (C) Copyright 2010 + * Jason Kridner <jkridner(a)beagleboard.org> + * + * Based on cmd_led.c patch from: + * http://www.mail-archive.com/u-boot@lists.denx.de/msg06873.html + * (C) Copyright 2008 + * Ulf Samuelsson <ulf.samuelsson(a)atmel.com> + * + * 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 + */ + +#include <common.h> +#include <config.h> +#include <command.h> +#include <status_led.h> + +struct led_tbl_s { + char *string; /* String for use in the command */ + led_id_t mask; /* Mask used for calling __led_set() */ + void (*on)(void); /* Optional fucntion for turning LED on */ + void (*off)(void); /* Optional fucntion for turning LED on */ +}; + +typedef struct led_tbl_s led_tbl_t; + +static const led_tbl_t led_commands[] = { +#ifdef CONFIG_BOARD_SPECIFIC_LED +#ifdef STATUS_LED_BIT + { "0", STATUS_LED_BIT, NULL, NULL }, +#endif +#ifdef STATUS_LED_BIT1 + { "1", STATUS_LED_BIT1, NULL, NULL }, +#endif +#ifdef STATUS_LED_BIT2 + { "2", STATUS_LED_BIT2, NULL, NULL }, +#endif +#ifdef STATUS_LED_BIT3 + { "3", STATUS_LED_BIT3, NULL, NULL }, +#endif +#endif +#ifdef STATUS_LED_GREEN + { "green", STATUS_LED_GREEN, green_LED_off, green_LED_on }, +#endif +#ifdef STATUS_LED_YELLOW + { "yellow", STATUS_LED_YELLOW, yellow_LED_off, yellow_LED_on }, +#endif +#ifdef STATUS_LED_RED + { "red", STATUS_LED_RED, red_LED_off, red_LED_on }, +#endif +#ifdef STATUS_LED_BLUE + { "blue", STATUS_LED_BLUE, blue_LED_off, blue_LED_on }, +#endif + { NULL, 0, NULL, NULL } +}; + +int str_onoff (char *var) +{ + if (strcmp(var, "off") == 0) { + return 0; + } + if (strcmp(var, "on") == 0) { + return 1; + } + return -1; +} + +int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + int state, i; + + /* Validate arguments */ + if ((argc != 3)) { + return cmd_usage(cmdtp); + } + + state = str_onoff(argv[2]); + if (state < 0) { + return cmd_usage(cmdtp); + } + + for (i = 0; led_commands[i].string; i++) { + if ((strcmp("all", argv[1]) == 0) || + (strcmp(led_commands[i].string, argv[1]) == 0)) { + if (led_commands[i].on) { + if (state) { + led_commands[i].on(); + } else { + led_commands[i].off(); + } + } else { + __led_set(led_commands[i].mask, state); + } + break; + } + } + + /* If we ran out of matches, print Usage */ + if (!led_commands[i].string && !(strcmp("all", argv[1]) == 0)) { + return cmd_usage(cmdtp); + } + + return 0; +} + +U_BOOT_CMD( + led, 3, 1, do_led, + "led\t- [" +#ifdef CONFIG_BOARD_SPECIFIC_LED +#ifdef STATUS_LED_BIT + "0|" +#endif +#ifdef STATUS_LED_BIT1 + "1|" +#endif +#ifdef STATUS_LED_BIT2 + "2|" +#endif +#ifdef STATUS_LED_BIT3 + "3|" +#endif +#endif +#ifdef STATUS_LED_GREEN + "green|" +#endif +#ifdef STATUS_LED_YELLOW + "yellow|" +#endif +#ifdef STATUS_LED_RED + "red|" +#endif +#ifdef STATUS_LED_BLUE + "blue|" +#endif + "all] [on|off]\n", + "led [led_name] [on|off] sets or clears led(s)\n" +); -- 1.5.6.4

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[U-Boot] [PATCH 00/15] [REWORK AVR32/AT91] additional changes for avr32
by Andreas Bießmann 19 Apr '11

19 Apr '11

This series do some cleanup all avr32 boards. This series is on top of 'Get AVR32 boards working with partial linking' rebased to u-boot-atmel/rework110202. In summary the board specific config.mk and u-boot.lds files are deleted in favor of a version at architecture level. Theses files had all the same content cause they where pure copies of the atstk100x ones. I have splitted the patches to each board cause some of them should be actively maintained and the respectively maintainer should have a chance to give some feedback. Andreas Bießmann (15): avr32/config.mk: simplify PLATFORM_RELFLAGS avr32: use single linker script atngw100: fix "#define XXXX 1" atstk1002: fix "#define XXXX 1" atstk1003: fix "#define XXXX 1" atstk1004: fix "#define XXXX 1" atstk1006: fix "#define XXXX 1" favr-32-ezkit: fix "#define XXXX 1" hammerhead: fix "#define XXXX 1" mimc200: fix "#define XXXX 1" atngw100: move CONFIG_SYS_TEXT_BASE to header atstk100x: move CONFIG_SYS_TEXT_BASE to header favr-32-ezkit: move CONFIG_SYS_TEXT_BASE to header mimc200: move CONFIG_SYS_TEXT_BASE to header hammerhead: move CONFIG_SYS_TEXT_BASE to header arch/avr32/config.mk | 4 + .../atmel/atstk1000 => arch/avr32/cpu}/u-boot.lds | 0 board/atmel/atngw100/config.mk | 2 - board/atmel/atngw100/u-boot.lds | 72 -------------------- board/atmel/atstk1000/config.mk | 3 - board/earthlcd/favr-32-ezkit/config.mk | 3 - board/earthlcd/favr-32-ezkit/u-boot.lds | 70 ------------------- board/mimc/mimc200/config.mk | 2 - board/mimc/mimc200/u-boot.lds | 72 -------------------- board/miromico/hammerhead/config.mk | 2 - board/miromico/hammerhead/u-boot.lds | 72 -------------------- include/configs/atngw100.h | 55 ++++++++------- include/configs/atstk1002.h | 49 +++++++------- include/configs/atstk1003.h | 43 ++++++------ include/configs/atstk1004.h | 43 ++++++------ include/configs/atstk1006.h | 49 +++++++------- include/configs/favr-32-ezkit.h | 47 +++++++------ include/configs/hammerhead.h | 49 +++++++------- include/configs/mimc200.h | 57 ++++++++-------- 19 files changed, 204 insertions(+), 490 deletions(-) rename {board/atmel/atstk1000 => arch/avr32/cpu}/u-boot.lds (100%) delete mode 100644 board/atmel/atngw100/config.mk delete mode 100644 board/atmel/atngw100/u-boot.lds delete mode 100644 board/atmel/atstk1000/config.mk delete mode 100644 board/earthlcd/favr-32-ezkit/config.mk delete mode 100644 board/earthlcd/favr-32-ezkit/u-boot.lds delete mode 100644 board/mimc/mimc200/config.mk delete mode 100644 board/mimc/mimc200/u-boot.lds delete mode 100644 board/miromico/hammerhead/config.mk delete mode 100644 board/miromico/hammerhead/u-boot.lds -- 1.7.2.3

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