January 2015 - U-Boot

[U-Boot] fatload from eMMC general purpose partition
by Andreas Naumann 24 Apr '15

24 Apr '15

Hi, using an eMMC I want to load uImage and dtb from a general purpose partition (since these can be configured as pSLC independent of the user data area). From the kernel I can format and access the GP-partition, in my case mkfs.vfat. However, U-Boots fatload/extload on the GP-partition do not work or maybe I just give the wrong parameters. Is this implemented at all, any hints? Regards Andreas

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[U-Boot] [PATCH 00/19] [RFC] Power(full) framework based on Driver Model
by Przemyslaw Marczak 24 Apr '15

24 Apr '15

Hello, This piece of code was a base for prepare my presentation talk for the U-Boot Mini Summit, which taking place at ELCE2014 conference, 13-th October 2014 Dusseldorf, Germany. The tittle of talk: "Power(full) framework based on Driver Model" The presentation will be shared after the Summit. This patchset introduces the new one PMIC framework for the U-Boot. It is still under the construction, but the basic functionality was achieved and tested. Please feel free to comment and share the opinion. I think that each patch is described full enough, but for some more design details, please look into the documentation file. It includes some basic examples for the PMIC drivers. Quick summary of: Framework: - The new approach - UCLASS_PMIC - simple and designed for device I/O only - Add new uclass types: UCLASS_PMIC and UCLASS_PMIC_REGULATOR - Two uclass drivers for above types - A common regulator operations - will easy cover the real devices design Drivers: - Introduce new PMIC API for drivers - now everything base on "struct udevice" - Introduce Regulator Voltage descriptors and Operation Mode descriptors which are usually taken from the device tree (board dependent data) - Two uclass device drivers for MAX77686(PMIC+REGULATOR) User Interface: - command pmic, unchanged functionality and ported to the driver model - command regulator(NEW) for safe regulator setup from commandline, - now can check output Voltage and operation mode of the regulators, - also can check the board Voltage limits and driver available modes The future plans: - Wait for the I2c Driver Model implementation - Introduce a common way to bind pmic devices - now done by alias "pmic" - Add additional uclass types: MUIC, CHARGER, BATTERY, MFD and maybe more. - Introduce optimal operations for new uclasses - Port all U-Boot drivers to the new Framework - Remove the old drivers and the old PMIC Framework code The assumptions of this work is: - Add new code to independent files - Keep two Frameworks as independent and without conflicts - Don't mix OLD/NEW Framework code - for the readability - Port all drivers using new API - Remove the old Framework and the old drivers A disadvantage: - some parts of the present code is duplicated Need help: - After merge this, it is welcome to help with driver porting. - Everything should be tested The extra feature: The first commit introduces errno_str() function. It is a common function which I hope will be usefull for commands and not only. If any visible error says: -19 or some other magic number, then it means that this function should be used. U-Boot Mini Summit members: This code is maybe not as good as it could be, but the time was limited, and the conference is comming soon. I don't expects a code review of this now, but it would be nice if you take a look of this piece of code before our U-Boot Mini Summit. Of course it depends on you. Best Regards and see you in Dusseldorf! Przemyslaw Marczak Przemyslaw Marczak (19): lib: errno: introduce errno_str(): returns errno related message exynos: config-common: enable errno_str() function exynos: config-common: enable generic fs command dm: pmic: add implementation of driver model pmic uclass dm: pmic: add implementation of driver model regulator uclass dm: common: board_r: add call and weak of power_init_dm() dm: pmic: add max77686 pmic driver dm: regulator: add max77686 regulator driver dm: pmic: new commands: pmic and regulator dm: board:samsung: power_init_board: add requirement of CONFIG_DM_PMIC doc: driver-model: pmic and regulator uclass documentation samsung: board: lcd menu: check if any power framework is enabled samsung: misc: power_key_pressed: add support to dm pmic framework trats2: board: add support to dm pmic api trats2: dts: max77686: add pmic alias and names cleanup trats2: config: enable dm pmic, dm regulator api, dm max77686 odroid: board: add support to dm pmic api odroid: dts: add 'voltage-regulators' description to max77686 node odroid: config: enable dm pmic, dm regulator and max77686 driver Makefile | 1 + arch/arm/dts/exynos4412-odroid.dts | 250 +++++++++- arch/arm/dts/exynos4412-trats2.dts | 17 +- board/samsung/common/board.c | 5 +- board/samsung/common/misc.c | 21 +- board/samsung/odroid/odroid.c | 31 +- board/samsung/trats2/trats2.c | 208 ++------ common/board_r.c | 8 + doc/driver-model/dm-pmic-framework.txt | 450 ++++++++++++++++++ drivers/power/Makefile | 6 +- drivers/power/cmd_pmic.c | 845 +++++++++++++++++++++++++++++++++ drivers/power/pmic-uclass.c | 255 ++++++++++ drivers/power/pmic/Makefile | 1 + drivers/power/pmic/max77686.c | 89 ++++ drivers/power/pmic_i2c.c | 136 ++++++ drivers/power/pmic_spi.c | 137 ++++++ drivers/power/regulator-uclass.c | 250 ++++++++++ drivers/power/regulator/Makefile | 8 + drivers/power/regulator/max77686.c | 749 +++++++++++++++++++++++++++++ include/configs/exynos-common.h | 3 + include/configs/odroid.h | 8 +- include/configs/trats2.h | 14 +- include/dm/uclass-id.h | 4 + include/errno.h | 3 + include/power/max77686_pmic.h | 28 +- include/power/pmic.h | 82 ++++ include/power/regulator.h | 267 +++++++++++ lib/Makefile | 1 + lib/errno_str.c | 147 ++++++ 29 files changed, 3823 insertions(+), 201 deletions(-) create mode 100644 doc/driver-model/dm-pmic-framework.txt create mode 100644 drivers/power/cmd_pmic.c create mode 100644 drivers/power/pmic-uclass.c create mode 100644 drivers/power/pmic/max77686.c create mode 100644 drivers/power/pmic_i2c.c create mode 100644 drivers/power/pmic_spi.c create mode 100644 drivers/power/regulator-uclass.c create mode 100644 drivers/power/regulator/Makefile create mode 100644 drivers/power/regulator/max77686.c create mode 100644 include/power/regulator.h create mode 100644 lib/errno_str.c -- 1.9.1

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[U-Boot] [PATCH] Revert "spi: add config option to enable the WP pin function on st micron flashes"
by Jagannadha Sutradharudu Teki 23 Apr '15

23 Apr '15

This reverts commit 562f8df18da62ae02c4ace1e530451fe82c3312d. Never see the issue with N25Q128 flash without need of W#/Vpp signal during probe. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki(a)gmail.com> Cc: Heiko Schocher <hs(a)denx.de> --- README | 11 ----------- drivers/mtd/spi/sf_internal.h | 4 ---- drivers/mtd/spi/sf_probe.c | 30 ------------------------------ 3 files changed, 45 deletions(-) diff --git a/README b/README index 4ca04d0..908646f 100644 --- a/README +++ b/README @@ -3090,17 +3090,6 @@ CBFS (Coreboot Filesystem) support memories can be connected with a given cs line. currently Xilinx Zynq qspi support these type of connections. - CONFIG_SYS_SPI_ST_ENABLE_WP_PIN - enable the W#/Vpp signal to disable writing to the status - register on ST MICRON flashes like the N25Q128. - The status register write enable/disable bit, combined with - the W#/VPP signal provides hardware data protection for the - device as follows: When the enable/disable bit is set to 1, - and the W#/VPP signal is driven LOW, the status register - nonvolatile bits become read-only and the WRITE STATUS REGISTER - operation will not execute. The only way to exit this - hardware-protected mode is to drive W#/VPP HIGH. - - SystemACE Support: CONFIG_SYSTEMACE diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h index 785f7a9..bd834dc 100644 --- a/drivers/mtd/spi/sf_internal.h +++ b/drivers/mtd/spi/sf_internal.h @@ -97,10 +97,6 @@ enum { #define STATUS_QEB_MXIC (1 << 6) #define STATUS_PEC (1 << 7) -#ifdef CONFIG_SYS_SPI_ST_ENABLE_WP_PIN -#define STATUS_SRWD (1 << 7) /* SR write protect */ -#endif - /* Flash timeout values */ #define SPI_FLASH_PROG_TIMEOUT (2 * CONFIG_SYS_HZ) #define SPI_FLASH_PAGE_ERASE_TIMEOUT (5 * CONFIG_SYS_HZ) diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c index ce9987f..3b0e652 100644 --- a/drivers/mtd/spi/sf_probe.c +++ b/drivers/mtd/spi/sf_probe.c @@ -287,34 +287,6 @@ int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash) } #endif /* CONFIG_OF_CONTROL */ -#ifdef CONFIG_SYS_SPI_ST_ENABLE_WP_PIN -/* enable the W#/Vpp signal to disable writing to the status register */ -static int spi_enable_wp_pin(struct spi_flash *flash) -{ - u8 status; - int ret; - - ret = spi_flash_cmd_read_status(flash, &status); - if (ret < 0) - return ret; - - ret = spi_flash_cmd_write_status(flash, STATUS_SRWD); - if (ret < 0) - return ret; - - ret = spi_flash_cmd_write_disable(flash); - if (ret < 0) - return ret; - - return 0; -} -#else -static int spi_enable_wp_pin(struct spi_flash *flash) -{ - return 0; -} -#endif - /** * spi_flash_probe_slave() - Probe for a SPI flash device on a bus * @@ -393,8 +365,6 @@ int spi_flash_probe_slave(struct spi_slave *spi, struct spi_flash *flash) puts(" Full access #define CONFIG_SPI_FLASH_BAR\n"); } #endif - if (spi_enable_wp_pin(flash)) - puts("Enable WP pin failed\n"); /* Release spi bus */ spi_release_bus(spi); -- 1.9.1

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[U-Boot] [PATCH 1/3] sf: ops: Add spi_flash_copy_mmap function
by Tom Rini 22 Apr '15

22 Apr '15

When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Cc: Jagannadha Sutradharudu Teki <jaganna(a)xilinx.com> Signed-off-by: Tom Rini <trini(a)ti.com> --- drivers/mtd/spi/sf_ops.c | 8 +++++++- include/spi.h | 3 +++ 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/spi/sf_ops.c b/drivers/mtd/spi/sf_ops.c index ef91b92..2c7b890 100644 --- a/drivers/mtd/spi/sf_ops.c +++ b/drivers/mtd/spi/sf_ops.c @@ -14,6 +14,7 @@ #include <spi.h> #include <spi_flash.h> #include <watchdog.h> +#include <linux/compiler.h> #include "sf_internal.h" @@ -359,6 +360,11 @@ int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd, return ret; } +void __weak spi_flash_copy_mmap(void *data, void *offset, size_t len) +{ + memcpy(data, offset, len); +} + int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset, size_t len, void *data) { @@ -375,7 +381,7 @@ int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset, return ret; } spi_xfer(flash->spi, 0, NULL, NULL, SPI_XFER_MMAP); - memcpy(data, flash->memory_map + offset, len); + spi_flash_copy_mmap(data, flash->memory_map + offset, len); spi_xfer(flash->spi, 0, NULL, NULL, SPI_XFER_MMAP_END); spi_release_bus(flash->spi); return 0; diff --git a/include/spi.h b/include/spi.h index ffd6647..eecb9ad 100644 --- a/include/spi.h +++ b/include/spi.h @@ -220,6 +220,9 @@ int spi_set_wordlen(struct spi_slave *slave, unsigned int wordlen); int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout, void *din, unsigned long flags); +/* Copy memory mapped data */ +void spi_flash_copy_mmap(void *data, void *offset, size_t len); + /** * Determine if a SPI chipselect is valid. * This function is provided by the board if the low-level SPI driver -- 1.7.9.5

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[U-Boot] [PATCH] cmd_sf: Fix problem with "sf update" and unaligned length
by Stefan Roese 22 Apr '15

22 Apr '15

On SoCFPGA, using "sf update" with an non-4byte aligned length leads to a hangup (and reboot via watchdog). This is because of the unaligned access in the cadence QSPI driver which is hard to prevent since the data is written into a 4-byte wide FIFO. This patch fixes this problem by changing the behavior of the last sector write (not sector aligned). The new code is even simpler and copies the source data into the temp buffer and now uses the temp buffer to write the complete sector. So only one SPI sector write is used now instead of 2 in the old version. Signed-off-by: Stefan Roese <sr(a)denx.de> Cc: Gerlando Falauto <gerlando.falauto(a)keymile.com> Cc: Valentin Longchamp <valentin.longchamp(a)keymile.com> Cc: Holger Brunck <holger.brunck(a)keymile.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki(a)gmail.com> --- common/cmd_sf.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/common/cmd_sf.c b/common/cmd_sf.c index 5c788e9..dd82290 100644 --- a/common/cmd_sf.c +++ b/common/cmd_sf.c @@ -163,6 +163,8 @@ static int do_spi_flash_probe(int argc, char * const argv[]) static const char *spi_flash_update_block(struct spi_flash *flash, u32 offset, size_t len, const char *buf, char *cmp_buf, size_t *skipped) { + char *ptr = (char *)buf; + debug("offset=%#x, sector_size=%#x, len=%#zx\n", offset, flash->sector_size, len); /* Read the entire sector so to allow for rewriting */ @@ -178,16 +180,14 @@ static const char *spi_flash_update_block(struct spi_flash *flash, u32 offset, /* Erase the entire sector */ if (spi_flash_erase(flash, offset, flash->sector_size)) return "erase"; - /* Write the initial part of the block from the source */ - if (spi_flash_write(flash, offset, len, buf)) - return "write"; - /* If it's a partial sector, rewrite the existing part */ + /* If it's a partial sector, copy the data into the temp-buffer */ if (len != flash->sector_size) { - /* Rewrite the original data to the end of the sector */ - if (spi_flash_write(flash, offset + len, - flash->sector_size - len, &cmp_buf[len])) - return "write"; + memcpy(cmp_buf, buf, len); + ptr = cmp_buf; } + /* Write one complete sector */ + if (spi_flash_write(flash, offset, flash->sector_size, ptr)) + return "write"; return NULL; } -- 2.2.1

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[U-Boot] [PATCH v3 0/9] sf: Update flash params for supported read commands and sector size
by Bin Meng 22 Apr '15

22 Apr '15

This series update SPI flash supported read commands per datasheet in the flash params table, and change flash sector size to 4KiB as long as flash supports sector erase (20h) command, to ensure 'sf erase offset +len' work on 4KiB boundary instead of 64KiB when given SECT_4K. Changes in v3: - Rebase with Jagan's patch series @ http://patchwork.ozlabs.org/patch/419154/ Bin Meng (9): sf: Update SST flash params sf: Update Atmel flash params sf: Update EON flash params sf: Update GigaDevice flash params sf: Update Macronix flash params sf: Update Spansion flash params sf: Update Micron flash params sf: Update Winbond flash params sf: Give proper spacing between flash table params drivers/mtd/spi/sf_internal.h | 5 ++ drivers/mtd/spi/sf_params.c | 185 ++++++++++++++++++++++-------------------- drivers/mtd/spi/sf_probe.c | 4 + 3 files changed, 104 insertions(+), 90 deletions(-) -- 1.8.2.1

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[U-Boot] [PATCH 0/4] dm: rpi: Move Raspberry Pi to use driver model
by Simon Glass 21 Apr '15

21 Apr '15

This series adds driver model support to the GPIO and serial drivers used by Raspberry Pi, and moves Raspberry Pi over to driver model. This requires adding driver model support to the pl01x serial driver, and replacing the bcm2835 GPIO driver with a driver model version (since there are no longer clients that don't use driver model). See u-boot-dm.git branch rpi-working for the tree this is based on. Simon Glass (4): dm: rpi: Convert GPIO driver to driver model dm: serial: Tidy up the pl01x driver dm: serial: Support driver model in pl01x driver dm: rpi: Move serial to driver model arch/arm/include/asm/arch-bcm2835/gpio.h | 9 + board/raspberrypi/rpi_b/rpi_b.c | 23 ++ drivers/gpio/bcm2835_gpio.c | 180 ++++++++-- drivers/serial/Makefile | 5 +- drivers/serial/serial_pl01x.c | 373 +++++++++++++-------- .../{serial_pl01x.h => serial_pl01x_internal.h} | 0 include/configs/rpi_b.h | 11 +- include/serial_pl01x.h | 27 ++ 8 files changed, 462 insertions(+), 166 deletions(-) rename drivers/serial/{serial_pl01x.h => serial_pl01x_internal.h} (100%) create mode 100644 include/serial_pl01x.h -- 2.1.0.rc2.206.gedb03e5

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[U-Boot] [UBOOT PATCH] f_thor: Dont perform reset at the end of thor
by Siva Durga Prasad Paladugu 15 Apr '15

15 Apr '15

Dont perform reset at the end of thor download if configured to do reset off. Reset may not be required in all cases and hence provided an option to do so. Signed-off-by: Siva Durga Prasad Paladugu <sivadur(a)xilinx.com> --- drivers/usb/gadget/f_thor.c | 7 +++++++ drivers/usb/gadget/f_thor.h | 3 +++ 2 files changed, 10 insertions(+), 0 deletions(-) diff --git a/drivers/usb/gadget/f_thor.c b/drivers/usb/gadget/f_thor.c index c85b0fb..8cf0718 100644 --- a/drivers/usb/gadget/f_thor.c +++ b/drivers/usb/gadget/f_thor.c @@ -123,6 +123,9 @@ static int process_rqt_cmd(const struct rqt_box *rqt) send_rsp(rsp); g_dnl_unregister(); dfu_free_entities(); +#ifdef CONFIG_THOR_RESET_OFF + return RESET_DONE; +#endif run_command("reset", 0); break; case RQT_CMD_POWEROFF: @@ -726,6 +729,10 @@ int thor_handle(void) if (ret > 0) { ret = process_data(); +#ifdef CONFIG_THOR_RESET_OFF + if (ret == RESET_DONE) + break; +#endif if (ret < 0) return ret; } else { diff --git a/drivers/usb/gadget/f_thor.h b/drivers/usb/gadget/f_thor.h index 833a9d2..8341285 100644 --- a/drivers/usb/gadget/f_thor.h +++ b/drivers/usb/gadget/f_thor.h @@ -121,4 +121,7 @@ struct f_thor { #define F_NAME_BUF_SIZE 32 #define THOR_PACKET_SIZE SZ_1M /* 1 MiB */ #define THOR_STORE_UNIT_SIZE SZ_32M /* 32 MiB */ +#ifdef CONFIG_THOR_RESET_OFF +#define RESET_DONE 0xFFFFFFFF +#endif #endif /* _USB_THOR_H_ */ -- 1.7.4

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[U-Boot] [UBOOT PATCH] usb: gadget: f_thor: Allocate request up to THOR_PACKET_SIZE
by Siva Durga Prasad Paladugu 15 Apr '15

15 Apr '15

Allocate request up to THOR_PACKET_SIZE not the ep0->maxpacket as the descriptors data depend on the number of descriptors and this 64 bytes were not enough and the buffer might overflow which results in memalign failures later. Signed-off-by: Siva Durga Prasad Paladugu <sivadur(a)xilinx.com> --- drivers/usb/gadget/f_thor.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/usb/gadget/f_thor.c b/drivers/usb/gadget/f_thor.c index c85b0fb..98d2d8c 100644 --- a/drivers/usb/gadget/f_thor.c +++ b/drivers/usb/gadget/f_thor.c @@ -766,7 +766,7 @@ static int thor_func_bind(struct usb_configuration *c, struct usb_function *f) goto fail; } dev->req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE, - gadget->ep0->maxpacket); + THOR_PACKET_SIZE); if (!dev->req->buf) { status = -ENOMEM; goto fail; -- 1.7.4

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[U-Boot] [PATCH 0/2] ARMv8: driver model enable
by fenghua＠phytium.com.cn 15 Apr '15

15 Apr '15

From: David Feng <fenghua(a)phytium.com.cn> Currently serial_pl01x.c driver contain DM and non-DM mode, but it will access static varible in non-DM mode. So, u-boot using non-DM pl01x driver can not be placed in flash. This patch set enable pre-allocation malloc that is required by DM and enable DM in vexpress64 board. David Feng (2): ARMv8: enable pre-allocation malloc ARMv8: enable DM in vexpress64 board arch/arm/include/asm/config.h | 4 ---- arch/arm/lib/crt0_64.S | 13 +++++++++++-- board/armltd/vexpress64/vexpress64.c | 13 +++++++++++++ include/configs/vexpress_aemv8a.h | 14 ++++++++++++-- 4 files changed, 36 insertions(+), 8 deletions(-) -- 1.7.9.5

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