This patch adds driver-model probe from cmd_sf through MTD_DM_SPI_NOR which is depends on MTD and DM_SPI uclass.
Cc: Simon Glass sjg@chromium.org Cc: Bin Meng bmeng.cn@gmail.com Cc: Mugunthan V N mugunthanvnm@ti.com Cc: Michal Simek michal.simek@xilinx.com Cc: Siva Durga Prasad Paladugu sivadur@xilinx.com Signed-off-by: Jagan Teki jteki@openedev.com --- cmd/sf.c | 4 ++-- common/env_sf.c | 4 ++-- drivers/mtd/spi-nor/Kconfig | 7 +++++++ drivers/mtd/spi-nor/Makefile | 2 ++ drivers/mtd/spi-nor/spi-nor-probe.c | 36 ++++++++++++++++++++++++++++++++++++ include/spi_flash.h | 18 +++++++++++++++++- 6 files changed, 66 insertions(+), 5 deletions(-) create mode 100644 drivers/mtd/spi-nor/spi-nor-probe.c
diff --git a/cmd/sf.c b/cmd/sf.c index 42862d9..89ab41e 100644 --- a/cmd/sf.c +++ b/cmd/sf.c @@ -85,7 +85,7 @@ static int do_spi_flash_probe(int argc, char * const argv[]) unsigned int speed = CONFIG_SF_DEFAULT_SPEED; unsigned int mode = CONFIG_SF_DEFAULT_MODE; char *endp; -#ifdef CONFIG_DM_SPI_FLASH +#if defined(CONFIG_DM_SPI_FLASH) || defined(CONFIG_DM_MTD_SPI_NOR) struct udevice *new, *bus_dev; int ret; #else @@ -118,7 +118,7 @@ static int do_spi_flash_probe(int argc, char * const argv[]) return -1; }
-#ifdef CONFIG_DM_SPI_FLASH +#if defined(CONFIG_DM_SPI_FLASH) || defined(CONFIG_DM_MTD_SPI_NOR) /* Remove the old device, otherwise probe will just be a nop */ ret = spi_find_bus_and_cs(bus, cs, &bus_dev, &new); if (!ret) { diff --git a/common/env_sf.c b/common/env_sf.c index 892e6cb..ec88792 100644 --- a/common/env_sf.c +++ b/common/env_sf.c @@ -52,7 +52,7 @@ int saveenv(void) char *saved_buffer = NULL, flag = OBSOLETE_FLAG; u32 saved_size, saved_offset, sector = 1; int ret; -#ifdef CONFIG_DM_SPI_FLASH +#if defined(CONFIG_DM_SPI_FLASH) || defined(CONFIG_DM_MTD_SPI_NOR) struct udevice *new;
ret = spi_flash_probe_bus_cs(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, @@ -242,7 +242,7 @@ int saveenv(void) char *saved_buffer = NULL; int ret = 1; env_t env_new; -#ifdef CONFIG_DM_SPI_FLASH +#if defined(CONFIG_DM_SPI_FLASH) || defined(CONFIG_DM_MTD_SPI_NOR) struct udevice *new;
ret = spi_flash_probe_bus_cs(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, diff --git a/drivers/mtd/spi-nor/Kconfig b/drivers/mtd/spi-nor/Kconfig index 374cdcb..342164d 100644 --- a/drivers/mtd/spi-nor/Kconfig +++ b/drivers/mtd/spi-nor/Kconfig @@ -1,5 +1,6 @@ menuconfig MTD_SPI_NOR tristate "SPI-NOR device support" + select DM_MTD_SPI_NOR if DM_SPI && MTD help This is the core SPI NOR framework which can be used to interact SPI-NOR to SPI driver interface layer and the SPI-NOR controller driver. @@ -12,6 +13,12 @@ menuconfig MTD_SPI_NOR SPI-NOR controller drivers for SPI-NOR device access. Note that from SPI-NOR core to SPI drivers there should be an interface layer.
+config DM_MTD_SPI_NOR + bool "MTD driver model for SPI-NOR" + help + This is enables MTD driver model support for SPI-NOR. Both MTD and SPI + driver models need to define for enabling this support. + if MTD_SPI_NOR
config MTD_M25P80 diff --git a/drivers/mtd/spi-nor/Makefile b/drivers/mtd/spi-nor/Makefile index 9ab6e3d..2f41630 100644 --- a/drivers/mtd/spi-nor/Makefile +++ b/drivers/mtd/spi-nor/Makefile @@ -6,6 +6,8 @@ ifdef CONFIG_MTD_SPI_NOR obj-y += spi-nor.o obj-y += spi-nor-ids.o + +obj-$(CONFIG_DM_MTD_SPI_NOR) += spi-nor-probe.o endif
obj-$(CONFIG_MTD_M25P80) += m25p80.o diff --git a/drivers/mtd/spi-nor/spi-nor-probe.c b/drivers/mtd/spi-nor/spi-nor-probe.c new file mode 100644 index 0000000..532d8a7 --- /dev/null +++ b/drivers/mtd/spi-nor/spi-nor-probe.c @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2014 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <spi.h> +#include <spi_flash.h> + +int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs, + unsigned int max_hz, unsigned int spi_mode, + struct udevice **devp) +{ + struct spi_slave *slave; + struct udevice *bus; + char *str; + int ret; + +#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_USE_TINY_PRINTF) + str = "spi_flash"; +#else + char name[30]; + + snprintf(name, sizeof(name), "spi_flash@%d:%d", busnum, cs); + str = strdup(name); +#endif + ret = spi_get_bus_and_cs(busnum, cs, max_hz, spi_mode, + "spi_flash_std", str, &bus, &slave); + if (ret) + return ret; + + *devp = slave->dev; + return 0; +} diff --git a/include/spi_flash.h b/include/spi_flash.h index d0ce9e7..d39941f 100644 --- a/include/spi_flash.h +++ b/include/spi_flash.h @@ -108,6 +108,14 @@ struct spi_flash { #endif };
+#if defined(CONFIG_MTD_SPI_NOR) && defined(CONFIG_DM_MTD_SPI_NOR) + +int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs, + unsigned int max_hz, unsigned int spi_mode, + struct udevice **devp); + +#endif + struct dm_spi_flash_ops { int (*read)(struct udevice *dev, u32 offset, size_t len, void *buf); int (*write)(struct udevice *dev, u32 offset, size_t len, @@ -190,7 +198,15 @@ int sandbox_sf_bind_emul(struct sandbox_state *state, int busnum, int cs,
void sandbox_sf_unbind_emul(struct sandbox_state *state, int busnum, int cs);
-#else +#elif !defined(CONFIG_MTD_SPI_NOR) + +struct sandbox_state; + +int sandbox_sf_bind_emul(struct sandbox_state *state, int busnum, int cs, + struct udevice *bus, int of_offset, const char *spec); + +void sandbox_sf_unbind_emul(struct sandbox_state *state, int busnum, int cs); + struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, unsigned int max_hz, unsigned int spi_mode);