diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/configs/cm_fx6.h | 11 | ||||
| -rw-r--r-- | include/configs/exynos-common.h | 7 | ||||
| -rw-r--r-- | include/configs/peach-pit.h | 1 | ||||
| -rw-r--r-- | include/configs/rpi_b.h | 5 | ||||
| -rw-r--r-- | include/configs/s5p_goni.h | 8 | ||||
| -rw-r--r-- | include/configs/s5pc210_universal.h | 12 | ||||
| -rw-r--r-- | include/configs/sacsng.h | 1 | ||||
| -rw-r--r-- | include/configs/sandbox.h | 5 | ||||
| -rw-r--r-- | include/configs/smdkc100.h | 6 | ||||
| -rw-r--r-- | include/configs/tegra-common-post.h | 2 | ||||
| -rw-r--r-- | include/configs/tegra-common.h | 2 | ||||
| -rw-r--r-- | include/configs/zipitz2.h | 1 | ||||
| -rw-r--r-- | include/cros_ec.h | 27 | ||||
| -rw-r--r-- | include/dm/device-internal.h | 13 | ||||
| -rw-r--r-- | include/dm/device.h | 31 | ||||
| -rw-r--r-- | include/dm/lists.h | 4 | ||||
| -rw-r--r-- | include/dm/platdata.h | 8 | ||||
| -rw-r--r-- | include/dm/uclass-id.h | 6 | ||||
| -rw-r--r-- | include/dm/uclass.h | 1 | ||||
| -rw-r--r-- | include/dm/util.h | 1 | ||||
| -rw-r--r-- | include/linker_lists.h | 23 | ||||
| -rw-r--r-- | include/serial_mxc.h | 14 | ||||
| -rw-r--r-- | include/serial_pl01x.h | 27 | ||||
| -rw-r--r-- | include/spi.h | 299 | ||||
| -rw-r--r-- | include/spi_flash.h | 127 |
25 files changed, 566 insertions, 76 deletions
diff --git a/include/configs/cm_fx6.h b/include/configs/cm_fx6.h index 7cf241e..a20c373 100644 --- a/include/configs/cm_fx6.h +++ b/include/configs/cm_fx6.h @@ -21,6 +21,17 @@ #define CONFIG_MACH_TYPE 4273 #define CONFIG_SYS_HZ 1000 +#ifndef CONFIG_SPL_BUILD +#define CONFIG_DM +#define CONFIG_CMD_DM + +#define CONFIG_DM_GPIO +#define CONFIG_CMD_GPIO + +#define CONFIG_DM_SERIAL +#define CONFIG_SYS_MALLOC_F_LEN (1 << 10) +#endif + /* Display information on boot */ #define CONFIG_DISPLAY_CPUINFO #define CONFIG_DISPLAY_BOARDINFO diff --git a/include/configs/exynos-common.h b/include/configs/exynos-common.h index 371f32d..6ba9bb7 100644 --- a/include/configs/exynos-common.h +++ b/include/configs/exynos-common.h @@ -17,6 +17,13 @@ #include <linux/sizes.h> #define CONFIG_SYS_GENERIC_BOARD +#define CONFIG_DM +#define CONFIG_CMD_DM +#define CONFIG_DM_GPIO +#define CONFIG_DM_SERIAL +#define CONFIG_DM_SPI +#define CONFIG_DM_SPI_FLASH + #define CONFIG_ARCH_CPU_INIT #define CONFIG_DISPLAY_CPUINFO #define CONFIG_DISPLAY_BOARDINFO diff --git a/include/configs/peach-pit.h b/include/configs/peach-pit.h index ab8ac60..91bd37d 100644 --- a/include/configs/peach-pit.h +++ b/include/configs/peach-pit.h @@ -38,6 +38,7 @@ #define CONFIG_POWER_TPS65090_EC #define CONFIG_CROS_EC_SPI /* Support CROS_EC over SPI */ +#define CONFIG_DM_CROS_EC #define CONFIG_USB_XHCI #define CONFIG_USB_XHCI_EXYNOS diff --git a/include/configs/rpi_b.h b/include/configs/rpi_b.h index 2d69809..d9475e9 100644 --- a/include/configs/rpi_b.h +++ b/include/configs/rpi_b.h @@ -31,6 +31,11 @@ */ #define CONFIG_MACH_TYPE MACH_TYPE_BCM2708 +/* Enable driver model */ +#define CONFIG_DM +#define CONFIG_CMD_DM +#define CONFIG_DM_GPIO + /* Memory layout */ #define CONFIG_NR_DRAM_BANKS 1 #define CONFIG_SYS_SDRAM_BASE 0x00000000 diff --git a/include/configs/s5p_goni.h b/include/configs/s5p_goni.h index 0c6e9c7..3633a35 100644 --- a/include/configs/s5p_goni.h +++ b/include/configs/s5p_goni.h @@ -276,6 +276,8 @@ #define CONFIG_SYS_I2C_SOFT_SPEED 50000 #define CONFIG_SYS_I2C_SOFT_SLAVE 0x7F #define CONFIG_I2C_MULTI_BUS +#define CONFIG_SYS_I2C_INIT_BOARD + #define CONFIG_SYS_MAX_I2C_BUS 7 #define CONFIG_USB_GADGET #define CONFIG_USB_GADGET_S3C_UDC_OTG @@ -286,4 +288,10 @@ #define CONFIG_OF_LIBFDT +#define CONFIG_SYS_GENERIC_BOARD +#define CONFIG_DM +#define CONFIG_CMD_DM +#define CONFIG_DM_GPIO +#define CONFIG_DM_SERIAL + #endif /* __CONFIG_H */ diff --git a/include/configs/s5pc210_universal.h b/include/configs/s5pc210_universal.h index 27f3d0a..4b30d14 100644 --- a/include/configs/s5pc210_universal.h +++ b/include/configs/s5pc210_universal.h @@ -187,17 +187,7 @@ * SPI Settings */ #define CONFIG_SOFT_SPI -#define CONFIG_SOFT_SPI_MODE SPI_MODE_3 -#define CONFIG_SOFT_SPI_GPIO_SCLK EXYNOS4_GPIO_Y31 -#define CONFIG_SOFT_SPI_GPIO_MOSI EXYNOS4_GPIO_Y33 -#define CONFIG_SOFT_SPI_GPIO_MISO EXYNOS4_GPIO_Y30 -#define CONFIG_SOFT_SPI_GPIO_CS EXYNOS4_GPIO_Y43 - -#define SPI_DELAY udelay(1) -#undef SPI_INIT -#define SPI_SCL(bit) universal_spi_scl(bit) -#define SPI_SDA(bit) universal_spi_sda(bit) -#define SPI_READ universal_spi_read() + #ifndef __ASSEMBLY__ void universal_spi_scl(int bit); void universal_spi_sda(int bit); diff --git a/include/configs/sacsng.h b/include/configs/sacsng.h index b5064ab..2dee315 100644 --- a/include/configs/sacsng.h +++ b/include/configs/sacsng.h @@ -259,7 +259,6 @@ #define I2C_MOSI 0x00004000 /* PD 17: Master Out, Slave In */ #define I2C_MISO 0x00008000 /* PD 16: Master In, Slave Out */ -#undef SPI_INIT /* no port initialization needed */ #define SPI_READ ((immr->im_ioport.iop_pdatd & I2C_MISO) != 0) #define SPI_SDA(bit) do { \ if(bit) immr->im_ioport.iop_pdatd |= I2C_MOSI; \ diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h index 022629f..ee4b244 100644 --- a/include/configs/sandbox.h +++ b/include/configs/sandbox.h @@ -32,6 +32,7 @@ #define CONFIG_DM_GPIO #define CONFIG_DM_TEST #define CONFIG_DM_SERIAL +#define CONFIG_DM_CROS_EC #define CONFIG_SYS_STDIO_DEREGISTER @@ -97,8 +98,8 @@ #define CONFIG_CMD_SF_TEST #define CONFIG_CMD_SPI #define CONFIG_SPI_FLASH -#define CONFIG_OF_SPI -#define CONFIG_OF_SPI_FLASH +#define CONFIG_DM_SPI +#define CONFIG_DM_SPI_FLASH #define CONFIG_SPI_FLASH_ATMEL #define CONFIG_SPI_FLASH_EON #define CONFIG_SPI_FLASH_GIGADEVICE diff --git a/include/configs/smdkc100.h b/include/configs/smdkc100.h index 22835ff..982d0dc 100644 --- a/include/configs/smdkc100.h +++ b/include/configs/smdkc100.h @@ -223,4 +223,10 @@ #define CONFIG_OF_LIBFDT +#define CONFIG_SYS_GENERIC_BOARD +#define CONFIG_DM +#define CONFIG_CMD_DM +#define CONFIG_DM_GPIO +#define CONFIG_DM_SERIAL + #endif /* __CONFIG_H */ diff --git a/include/configs/tegra-common-post.h b/include/configs/tegra-common-post.h index 23e3c8a..a258699 100644 --- a/include/configs/tegra-common-post.h +++ b/include/configs/tegra-common-post.h @@ -59,7 +59,7 @@ BOARD_EXTRA_ENV_SETTINGS #if defined(CONFIG_TEGRA20_SFLASH) || defined(CONFIG_TEGRA20_SLINK) || defined(CONFIG_TEGRA114_SPI) -#define CONFIG_FDT_SPI +#define CONFIG_TEGRA_SPI #endif /* overrides for SPL build here */ diff --git a/include/configs/tegra-common.h b/include/configs/tegra-common.h index 834b3d5..4719ee1 100644 --- a/include/configs/tegra-common.h +++ b/include/configs/tegra-common.h @@ -24,6 +24,8 @@ #ifndef CONFIG_SPL_BUILD #define CONFIG_DM_SERIAL #endif +#define CONFIG_DM_SPI +#define CONFIG_DM_SPI_FLASH #define CONFIG_SYS_TIMER_RATE 1000000 #define CONFIG_SYS_TIMER_COUNTER NV_PA_TMRUS_BASE diff --git a/include/configs/zipitz2.h b/include/configs/zipitz2.h index 41a7c99..fe331bc 100644 --- a/include/configs/zipitz2.h +++ b/include/configs/zipitz2.h @@ -99,7 +99,6 @@ #define CONFIG_VIDEO_BMP_GZIP #define CONFIG_VIDEO_BMP_RLE8 #define CONFIG_SYS_VIDEO_LOGO_MAX_SIZE (2 << 20) -#undef SPI_INIT #define SPI_DELAY udelay(10) #define SPI_SDA(val) zipitz2_spi_sda(val) diff --git a/include/cros_ec.h b/include/cros_ec.h index 1e4d8db..9e13146 100644 --- a/include/cros_ec.h +++ b/include/cros_ec.h @@ -14,6 +14,7 @@ #include <fdtdec.h> #include <cros_ec_message.h> +#ifndef CONFIG_DM_CROS_EC /* Which interface is the device on? */ enum cros_ec_interface_t { CROS_EC_IF_NONE, @@ -22,9 +23,13 @@ enum cros_ec_interface_t { CROS_EC_IF_LPC, /* Intel Low Pin Count interface */ CROS_EC_IF_SANDBOX, }; +#endif /* Our configuration information */ struct cros_ec_dev { +#ifdef CONFIG_DM_CROS_EC + struct udevice *dev; /* Transport device */ +#else enum cros_ec_interface_t interface; struct spi_slave *spi; /* Our SPI slave, if using SPI */ int node; /* Our node */ @@ -33,6 +38,7 @@ struct cros_ec_dev { unsigned int addr; /* Device address (for I2C) */ unsigned int bus_num; /* Bus number (for I2C) */ unsigned int max_frequency; /* Maximum interface frequency */ +#endif struct fdt_gpio_state ec_int; /* GPIO used as EC interrupt line */ int protocol_version; /* Protocol version to use */ int optimise_flash_write; /* Don't write erased flash blocks */ @@ -233,6 +239,22 @@ int cros_ec_flash_update_rw(struct cros_ec_dev *dev, */ struct cros_ec_dev *board_get_cros_ec_dev(void); +#ifdef CONFIG_DM_CROS_EC + +struct dm_cros_ec_ops { + int (*check_version)(struct udevice *dev); + int (*command)(struct udevice *dev, uint8_t cmd, int cmd_version, + const uint8_t *dout, int dout_len, + uint8_t **dinp, int din_len); + int (*packet)(struct udevice *dev, int out_bytes, int in_bytes); +}; + +#define dm_cros_ec_get_ops(dev) \ + ((struct dm_cros_ec_ops *)(dev)->driver->ops) + +int cros_ec_register(struct udevice *dev); + +#else /* !CONFIG_DM_CROS_EC */ /* Internal interfaces */ int cros_ec_i2c_init(struct cros_ec_dev *dev, const void *blob); @@ -336,6 +358,7 @@ int cros_ec_spi_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version, int cros_ec_spi_packet(struct cros_ec_dev *dev, int out_bytes, int in_bytes); int cros_ec_sandbox_packet(struct cros_ec_dev *dev, int out_bytes, int in_bytes); +#endif /** * Dump a block of data for a command. @@ -489,9 +512,11 @@ int cros_ec_get_error(void); * Returns information from the FDT about the Chrome EC flash * * @param blob FDT blob to use + * @param node Node offset to read from * @param config Structure to use to return information */ -int cros_ec_decode_ec_flash(const void *blob, struct fdt_cros_ec *config); +int cros_ec_decode_ec_flash(const void *blob, int node, + struct fdt_cros_ec *config); /** * Check the current keyboard state, in case recovery mode is requested. diff --git a/include/dm/device-internal.h b/include/dm/device-internal.h index 7005d03..44cb7ef 100644 --- a/include/dm/device-internal.h +++ b/include/dm/device-internal.h @@ -66,6 +66,19 @@ int device_bind_by_name(struct udevice *parent, bool pre_reloc_only, int device_probe(struct udevice *dev); /** + * device_probe() - Probe a child device, activating it + * + * Activate a device so that it is ready for use. All its parents are probed + * first. The child is provided with parent data if parent_priv is not NULL. + * + * @dev: Pointer to device to probe + * @parent_priv: Pointer to parent data. If non-NULL then this is provided to + * the child. + * @return 0 if OK, -ve on error + */ +int device_probe_child(struct udevice *dev, void *parent_priv); + +/** * device_remove() - Remove a device, de-activating it * * De-activate a device so that it is no longer ready for use. All its diff --git a/include/dm/device.h b/include/dm/device.h index c8a4072..9ce95a8 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -57,7 +57,8 @@ struct driver_info; * @sibling_node: Next device in list of all devices * @flags: Flags for this device DM_FLAG_... * @req_seq: Requested sequence number for this device (-1 = any) - * @seq: Allocated sequence number for this device (-1 = none) + * @seq: Allocated sequence number for this device (-1 = none). This is set up + * when the device is probed and will be unique within the device's uclass. */ struct udevice { struct driver *driver; @@ -96,6 +97,12 @@ struct udevice_id { ulong data; }; +#ifdef CONFIG_OF_CONTROL +#define of_match_ptr(_ptr) (_ptr) +#else +#define of_match_ptr(_ptr) NULL +#endif /* CONFIG_OF_CONTROL */ + /** * struct driver - A driver for a feature or peripheral * @@ -133,6 +140,10 @@ struct udevice_id { * @per_child_auto_alloc_size: Each device can hold private data owned by * its parent. If required this will be automatically allocated if this * value is non-zero. + * TODO(sjg@chromium.org): I'm considering dropping this, and just having + * device_probe_child() pass it in. So far the use case for allocating it + * is SPI, but I found that unsatisfactory. Since it is here I will leave it + * until things are clearer. * @ops: Driver-specific operations. This is typically a list of function * pointers defined by the driver, to implement driver functions required by * the uclass. @@ -274,4 +285,22 @@ int device_find_child_by_of_offset(struct udevice *parent, int of_offset, int device_get_child_by_of_offset(struct udevice *parent, int seq, struct udevice **devp); +/** + * device_find_first_child() - Find the first child of a device + * + * @parent: Parent device to search + * @devp: Returns first child device, or NULL if none + * @return 0 + */ +int device_find_first_child(struct udevice *parent, struct udevice **devp); + +/** + * device_find_first_child() - Find the first child of a device + * + * @devp: Pointer to previous child device on entry. Returns pointer to next + * child device, or NULL if none + * @return 0 + */ +int device_find_next_child(struct udevice **devp); + #endif diff --git a/include/dm/lists.h b/include/dm/lists.h index 2356895..704e33e 100644 --- a/include/dm/lists.h +++ b/include/dm/lists.h @@ -38,7 +38,7 @@ struct uclass_driver *lists_uclass_lookup(enum uclass_id id); * This searches the U_BOOT_DEVICE() structures and creates new devices for * each one. The devices will have @parent as their parent. * - * @parent: parent driver (root) + * @parent: parent device (root) * @early_only: If true, bind only drivers with the DM_INIT_F flag. If false * bind all drivers. */ @@ -50,7 +50,7 @@ int lists_bind_drivers(struct udevice *parent, bool pre_reloc_only); * This creates a new device bound to the given device tree node, with * @parent as its parent. * - * @parent: parent driver (root) + * @parent: parent device (root) * @blob: device tree blob * @offset: offset of this device tree node * @devp: if non-NULL, returns a pointer to the bound device diff --git a/include/dm/platdata.h b/include/dm/platdata.h index 2bc8b14..fbc8a6b 100644 --- a/include/dm/platdata.h +++ b/include/dm/platdata.h @@ -11,10 +11,12 @@ #ifndef _DM_PLATDATA_H #define _DM_PLATDATA_H +#include <linker_lists.h> + /** * struct driver_info - Information required to instantiate a device * - * @name: Device name + * @name: Driver name * @platdata: Driver-specific platform data */ struct driver_info { @@ -25,4 +27,8 @@ struct driver_info { #define U_BOOT_DEVICE(__name) \ ll_entry_declare(struct driver_info, __name, driver_info) +/* Declare a list of devices. The argument is a driver_info[] array */ +#define U_BOOT_DEVICES(__name) \ + ll_entry_declare_list(struct driver_info, __name, driver_info) + #endif diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h index 7f0e37b..a8944c9 100644 --- a/include/dm/uclass-id.h +++ b/include/dm/uclass-id.h @@ -18,10 +18,16 @@ enum uclass_id { UCLASS_TEST, UCLASS_TEST_FDT, UCLASS_TEST_BUS, + UCLASS_SPI_EMUL, /* sandbox SPI device emulator */ + UCLASS_SIMPLE_BUS, /* U-Boot uclasses start here */ UCLASS_GPIO, /* Bank of general-purpose I/O pins */ UCLASS_SERIAL, /* Serial UART */ + UCLASS_SPI, /* SPI bus */ + UCLASS_SPI_GENERIC, /* Generic SPI flash target */ + UCLASS_SPI_FLASH, /* SPI flash */ + UCLASS_CROS_EC, /* Chrome OS EC */ UCLASS_COUNT, UCLASS_INVALID = -1, diff --git a/include/dm/uclass.h b/include/dm/uclass.h index 8d09ecf..f6ec6d7 100644 --- a/include/dm/uclass.h +++ b/include/dm/uclass.h @@ -11,6 +11,7 @@ #define _DM_UCLASS_H #include <dm/uclass-id.h> +#include <linker_lists.h> #include <linux/list.h> /** diff --git a/include/dm/util.h b/include/dm/util.h index 8be64a9..6ac3a38 100644 --- a/include/dm/util.h +++ b/include/dm/util.h @@ -5,6 +5,7 @@ */ #ifndef __DM_UTIL_H +#define __DM_UTIL_H void dm_warn(const char *fmt, ...); diff --git a/include/linker_lists.h b/include/linker_lists.h index 507d61b..d37fba4 100644 --- a/include/linker_lists.h +++ b/include/linker_lists.h @@ -11,6 +11,8 @@ #ifndef __LINKER_LISTS_H__ #define __LINKER_LISTS_H__ +#include <linux/compiler.h> + /* * There is no use in including this from ASM files, but that happens * anyway, e.g. PPC kgdb.S includes command.h which incluse us. @@ -141,6 +143,27 @@ section(".u_boot_list_2_"#_list"_2_"#_name))) /** + * ll_entry_declare_list() - Declare a list of link-generated array entries + * @_type: Data type of each entry + * @_name: Name of the entry + * @_list: name of the list. Should contain only characters allowed + * in a C variable name! + * + * This is like ll_entry_declare() but creates multiple entries. It should + * be assigned to an array. + * + * ll_entry_declare_list(struct my_sub_cmd, my_sub_cmd, cmd_sub, cmd.sub) = { + * { .x = 3, .y = 4 }, + * { .x = 8, .y = 2 }, + * { .x = 1, .y = 7 } + * }; + */ +#define ll_entry_declare_list(_type, _name, _list) \ + _type _u_boot_list_2_##_list##_2_##_name[] __aligned(4) \ + __attribute__((unused, \ + section(".u_boot_list_2_"#_list"_2_"#_name))) + +/** * We need a 0-byte-size type for iterator symbols, and the compiler * does not allow defining objects of C type 'void'. Using an empty * struct is allowed by the compiler, but causes gcc versions 4.4 and diff --git a/include/serial_mxc.h b/include/serial_mxc.h new file mode 100644 index 0000000..7d3ace2 --- /dev/null +++ b/include/serial_mxc.h @@ -0,0 +1,14 @@ +/* + * Copyright (c) 2014 Google, Inc + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __serial_mxc_h +#define __serial_mxc_h + +/* Information about a serial port */ +struct mxc_serial_platdata { + struct mxc_uart *reg; /* address of registers in physical memory */ +}; + +#endif diff --git a/include/serial_pl01x.h b/include/serial_pl01x.h new file mode 100644 index 0000000..5e068f3 --- /dev/null +++ b/include/serial_pl01x.h @@ -0,0 +1,27 @@ +/* + * Copyright (c) 2014 Google, Inc + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __serial_pl01x_h +#define __serial_pl01x_h + +enum pl01x_type { + TYPE_PL010, + TYPE_PL011, +}; + +/* + *Information about a serial port + * + * @base: Register base address + * @type: Port type + * @clock: Input clock rate, used for calculating the baud rate divisor + */ +struct pl01x_serial_platdata { + unsigned long base; + enum pl01x_type type; + unsigned int clock; +}; + +#endif diff --git a/include/spi.h b/include/spi.h index b673be2..aa0a48e 100644 --- a/include/spi.h +++ b/include/spi.h @@ -54,12 +54,31 @@ #define SPI_DEFAULT_WORDLEN 8 +#ifdef CONFIG_DM_SPI +struct dm_spi_bus { + uint max_hz; +}; + +#endif /* CONFIG_DM_SPI */ + /** * struct spi_slave - Representation of a SPI slave * - * Drivers are expected to extend this with controller-specific data. + * For driver model this is the per-child data used by the SPI bus. It can + * be accessed using dev_get_parentdata() on the slave device. Each SPI + * driver should define this child data in its U_BOOT_DRIVER() definition: + * + * .per_child_auto_alloc_size = sizeof(struct spi_slave), * - * @bus: ID of the bus that the slave is attached to. + * If not using driver model, drivers are expected to extend this with + * controller-specific data. + * + * @dev: SPI slave device + * @max_hz: Maximum speed for this slave + * @mode: SPI mode to use for this slave (see SPI mode flags) + * @bus: ID of the bus that the slave is attached to. For + * driver model this is the sequence number of the SPI + * bus (bus->seq) so does not need to be stored * @cs: ID of the chip select connected to the slave. * @op_mode_rx: SPI RX operation mode. * @op_mode_tx: SPI TX operation mode. @@ -71,7 +90,13 @@ * @flags: Indication of SPI flags. */ struct spi_slave { +#ifdef CONFIG_DM_SPI + struct udevice *dev; /* struct spi_slave is dev->parentdata */ + uint max_hz; + uint mode; +#else unsigned int bus; +#endif unsigned int cs; u8 op_mode_rx; u8 op_mode_tx; @@ -228,8 +253,9 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout, * Returns: 1 if bus:cs identifies a valid chip on this board, 0 * otherwise. */ -int spi_cs_is_valid(unsigned int bus, unsigned int cs); +int spi_cs_is_valid(unsigned int bus, unsigned int cs); +#ifndef CONFIG_DM_SPI /** * Activate a SPI chipselect. * This function is provided by the board code when using a driver @@ -255,6 +281,7 @@ void spi_cs_deactivate(struct spi_slave *slave); * @hz: The transfer speed */ void spi_set_speed(struct spi_slave *slave, uint hz); +#endif /** * Write 8 bits, then read 8 bits. @@ -305,4 +332,270 @@ struct spi_slave *spi_setup_slave_fdt(const void *blob, int slave_node, struct spi_slave *spi_base_setup_slave_fdt(const void *blob, int busnum, int node); +#ifdef CONFIG_DM_SPI + +/** + * struct spi_cs_info - Information about a bus chip select + * + * @dev: Connected device, or NULL if none + */ +struct spi_cs_info { + struct udevice *dev; +}; + +/** + * struct struct dm_spi_ops - Driver model SPI operations + * + * The uclass interface is implemented by all SPI devices which use + * driver model. + */ +struct dm_spi_ops { + /** + * Claim the bus and prepare it for communication. + * + * The device provided is the slave device. It's parent controller + * will be used to provide the communication. + * + * This must be called before doing any transfers with a SPI slave. It + * will enable and initialize any SPI hardware as necessary, and make + * sure that the SCK line is in the correct idle state. It is not + * allowed to claim the same bus for several slaves without releasing + * the bus in between. + * + * @bus: The SPI slave + * + * Returns: 0 if the bus was claimed successfully, or a negative value + * if it wasn't. + */ + int (*claim_bus)(struct udevice *bus); + + /** + * Release the SPI bus + * + * This must be called once for every call to spi_claim_bus() after + * all transfers have finished. It may disable any SPI hardware as + * appropriate. + * + * @bus: The SPI slave + */ + int (*release_bus)(struct udevice *bus); + + /** + * Set the word length for SPI transactions + * + * Set the word length (number of bits per word) for SPI transactions. + * + * @bus: The SPI slave + * @wordlen: The number of bits in a word + * + * Returns: 0 on success, -ve on failure. + */ + int (*set_wordlen)(struct udevice *bus, unsigned int wordlen); + + /** + * SPI transfer + * + * This writes "bitlen" bits out the SPI MOSI port and simultaneously + * clocks "bitlen" bits in the SPI MISO port. That's just the way SPI + * works. + * + * The source of the outgoing bits is the "dout" parameter and the + * destination of the input bits is the "din" parameter. Note that + * "dout" and "din" can point to the same memory location, in which + * case the input data overwrites the output data (since both are + * buffered by temporary variables, this is OK). + * + * spi_xfer() interface: + * @dev: The slave device to communicate with + * @bitlen: How many bits to write and read. + * @dout: Pointer to a string of bits to send out. The bits are + * held in a byte array and are sent MSB first. + * @din: Pointer to a string of bits that will be filled in. + * @flags: A bitwise combination of SPI_XFER_* flags. + * + * Returns: 0 on success, not -1 on failure + */ + int (*xfer)(struct udevice *dev, unsigned int bitlen, const void *dout, + void *din, unsigned long flags); + + /** + * Set transfer speed. + * This sets a new speed to be applied for next spi_xfer(). + * @bus: The SPI bus + * @hz: The transfer speed + * @return 0 if OK, -ve on error + */ + int (*set_speed)(struct udevice *bus, uint hz); + + /** + * Set the SPI mode/flags + * + * It is unclear if we want to set speed and mode together instead + * of separately. + * + * @bus: The SPI bus + * @mode: Requested SPI mode (SPI_... flags) + * @return 0 if OK, -ve on error + */ + int (*set_mode)(struct udevice *bus, uint mode); + + /** + * Get information on a chip select + * + * This is only called when the SPI uclass does not know about a + * chip select, i.e. it has no attached device. It gives the driver + * a chance to allow activity on that chip select even so. + * + * @bus: The SPI bus + * @cs: The chip select (0..n-1) + * @info: Returns information about the chip select, if valid. + * On entry info->dev is NULL + * @return 0 if OK (and @info is set up), -ENODEV if the chip select + * is invalid, other -ve value on error + */ + int (*cs_info)(struct udevice *bus, uint cs, struct spi_cs_info *info); +}; + +struct dm_spi_emul_ops { + /** + * SPI transfer + * + * This writes "bitlen" bits out the SPI MOSI port and simultaneously + * clocks "bitlen" bits in the SPI MISO port. That's just the way SPI + * works. Here the device is a slave. + * + * The source of the outgoing bits is the "dout" parameter and the + * destination of the input bits is the "din" parameter. Note that + * "dout" and "din" can point to the same memory location, in which + * case the input data overwrites the output data (since both are + * buffered by temporary variables, this is OK). + * + * spi_xfer() interface: + * @slave: The SPI slave which will be sending/receiving the data. + * @bitlen: How many bits to write and read. + * @dout: Pointer to a string of bits sent to the device. The + * bits are held in a byte array and are sent MSB first. + * @din: Pointer to a string of bits that will be sent back to + * the master. + * @flags: A bitwise combination of SPI_XFER_* flags. + * + * Returns: 0 on success, not -1 on failure + */ + int (*xfer)(struct udevice *slave, unsigned int bitlen, + const void *dout, void *din, unsigned long flags); +}; + +/** + * spi_find_bus_and_cs() - Find bus and slave devices by number + * + * Given a bus number and chip select, this finds the corresponding bus + * device and slave device. Neither device is activated by this function, + * although they may have been activated previously. + * + * @busnum: SPI bus number + * @cs: Chip select to look for + * @busp: Returns bus device + * @devp: Return slave device + * @return 0 if found, -ENODEV on error + */ +int spi_find_bus_and_cs(int busnum, int cs, struct udevice **busp, + struct udevice **devp); + +/** + * spi_get_bus_and_cs() - Find and activate bus and slave devices by number + * + * Given a bus number and chip select, this finds the corresponding bus + * device and slave device. + * + * If no such slave exists, and drv_name is not NULL, then a new slave device + * is automatically bound on this chip select. + * + * Ths new slave device is probed ready for use with the given speed and mode. + * + * @busnum: SPI bus number + * @cs: Chip select to look for + * @speed: SPI speed to use for this slave + * @mode: SPI mode to use for this slave + * @drv_name: Name of driver to attach to this chip select + * @dev_name: Name of the new device thus created + * @busp: Returns bus device + * @devp: Return slave device + * @return 0 if found, -ve on error + */ +int spi_get_bus_and_cs(int busnum, int cs, int speed, int mode, + const char *drv_name, const char *dev_name, + struct udevice **busp, struct spi_slave **devp); + +/** + * spi_chip_select() - Get the chip select for a slave + * + * @return the chip select this slave is attached to + */ +int spi_chip_select(struct udevice *slave); + +/** + * spi_bind_device() - bind a device to a bus's chip select + * + * This binds a new device to an given chip select (which must be unused). + * + * @bus: SPI bus to search + * @cs: Chip select to attach to + * @drv_name: Name of driver to attach to this chip select + * @dev_name: Name of the new device thus created + * @devp: Returns the newly bound device + */ +int spi_bind_device(struct udevice *bus, int cs, const char *drv_name, + const char *dev_name, struct udevice **devp); + +/** + * spi_ofdata_to_platdata() - decode standard SPI platform data + * + * This decodes the speed and mode from a device tree node and puts it into + * the spi_slave structure. + * + * @blob: Device tree blob + * @node: Node offset to read from + * @spi: Place to put the decoded information + */ +int spi_ofdata_to_platdata(const void *blob, int node, struct spi_slave *spi); + +/** + * spi_cs_info() - Check information on a chip select + * + * This checks a particular chip select on a bus to see if it has a device + * attached, or is even valid. + * + * @bus: The SPI bus + * @cs: The chip select (0..n-1) + * @info: Returns information about the chip select, if valid + * @return 0 if OK (and @info is set up), -ENODEV if the chip select + * is invalid, other -ve value on error + */ +int spi_cs_info(struct udevice *bus, uint cs, struct spi_cs_info *info); + +struct sandbox_state; + +/** + * sandbox_spi_get_emul() - get an emulator for a SPI slave + * + * This provides a way to attach an emulated SPI device to a particular SPI + * slave, so that xfer() operations on the slave will be handled by the + * emulator. If a emulator already exists on that chip select it is returned. + * Otherwise one is created. + * + * @state: Sandbox state + * @bus: SPI bus requesting the emulator + * @slave: SPI slave device requesting the emulator + * @emuip: Returns pointer to emulator + * @return 0 if OK, -ve on error + */ +int sandbox_spi_get_emul(struct sandbox_state *state, + struct udevice *bus, struct udevice *slave, + struct udevice **emulp); + +/* Access the serial operations for a device */ +#define spi_get_ops(dev) ((struct dm_spi_ops *)(dev)->driver->ops) +#define spi_emul_get_ops(dev) ((struct dm_spi_emul_ops *)(dev)->driver->ops) +#endif /* CONFIG_DM_SPI */ + #endif /* _SPI_H_ */ diff --git a/include/spi_flash.h b/include/spi_flash.h index 408a5b4..5913b39 100644 --- a/include/spi_flash.h +++ b/include/spi_flash.h @@ -15,9 +15,8 @@ #ifndef _SPI_FLASH_H_ #define _SPI_FLASH_H_ -#include <spi.h> +#include <dm.h> /* Because we dereference struct udevice here */ #include <linux/types.h> -#include <linux/compiler.h> #ifndef CONFIG_SF_DEFAULT_SPEED # define CONFIG_SF_DEFAULT_SPEED 1000000 @@ -32,64 +31,19 @@ # define CONFIG_SF_DEFAULT_BUS 0 #endif -/* sf param flags */ -#define SECT_4K 1 << 1 -#define SECT_32K 1 << 2 -#define E_FSR 1 << 3 -#define WR_QPP 1 << 4 - -/* Enum list - Full read commands */ -enum spi_read_cmds { - ARRAY_SLOW = 1 << 0, - DUAL_OUTPUT_FAST = 1 << 1, - DUAL_IO_FAST = 1 << 2, - QUAD_OUTPUT_FAST = 1 << 3, - QUAD_IO_FAST = 1 << 4, -}; -#define RD_EXTN ARRAY_SLOW | DUAL_OUTPUT_FAST | DUAL_IO_FAST -#define RD_FULL RD_EXTN | QUAD_OUTPUT_FAST | QUAD_IO_FAST - -/* Dual SPI flash memories */ -enum spi_dual_flash { - SF_SINGLE_FLASH = 0, - SF_DUAL_STACKED_FLASH = 1 << 0, - SF_DUAL_PARALLEL_FLASH = 1 << 1, -}; - -/** - * struct spi_flash_params - SPI/QSPI flash device params structure - * - * @name: Device name ([MANUFLETTER][DEVTYPE][DENSITY][EXTRAINFO]) - * @jedec: Device jedec ID (0x[1byte_manuf_id][2byte_dev_id]) - * @ext_jedec: Device ext_jedec ID - * @sector_size: Sector size of this device - * @nr_sectors: No.of sectors on this device - * @e_rd_cmd: Enum list for read commands - * @flags: Important param, for flash specific behaviour - */ -struct spi_flash_params { - const char *name; - u32 jedec; - u16 ext_jedec; - u32 sector_size; - u32 nr_sectors; - u8 e_rd_cmd; - u16 flags; -}; - -extern const struct spi_flash_params spi_flash_params_table[]; +struct spi_slave; /** * struct spi_flash - SPI flash structure * * @spi: SPI slave * @name: Name of SPI flash - * @dual_flash: Indicates dual flash memories - dual stacked, parallel + * @dual_flash: Indicates dual flash memories - dual stacked, parallel * @shift: Flash shift useful in dual parallel * @size: Total flash size * @page_size: Write (page) size * @sector_size: Sector size - * @erase_size: Erase size + * @erase_size: Erase size * @bank_read_cmd: Bank read cmd * @bank_write_cmd: Bank write cmd * @bank_curr: Current flash bank @@ -97,8 +51,8 @@ extern const struct spi_flash_params spi_flash_params_table[]; * @erase_cmd: Erase cmd 4K, 32K, 64K * @read_cmd: Read cmd - Array Fast, Extn read and quad read. * @write_cmd: Write cmd - page and quad program. - * @dummy_byte: Dummy cycles for read operation. - * @memory_map: Address of read-only SPI flash access + * @dummy_byte: Dummy cycles for read operation. + * @memory_map: Address of read-only SPI flash access * @read: Flash read ops: Read len bytes at offset into buf * Supported cmds: Fast Array Read * @write: Flash write ops: Write len bytes from buf into offset @@ -108,7 +62,12 @@ extern const struct spi_flash_params spi_flash_params_table[]; * return 0 - Success, 1 - Failure */ struct spi_flash { +#ifdef CONFIG_DM_SPI_FLASH + struct spi_slave *spi; + struct udevice *dev; +#else struct spi_slave *spi; +#endif const char *name; u8 dual_flash; u8 shift; @@ -129,12 +88,75 @@ struct spi_flash { u8 dummy_byte; void *memory_map; +#ifndef CONFIG_DM_SPI_FLASH + /* + * These are not strictly needed for driver model, but keep them here + * whilt the transition is in progress. + * + * Normally each driver would provide its own operations, but for + * SPI flash most chips use the same algorithms. One approach is + * to create a 'common' SPI flash device which knows how to talk + * to most devices, and then allow other drivers to be used instead + * if requird, perhaps with a way of scanning through the list to + * find the driver that matches the device. + */ int (*read)(struct spi_flash *flash, u32 offset, size_t len, void *buf); int (*write)(struct spi_flash *flash, u32 offset, size_t len, const void *buf); int (*erase)(struct spi_flash *flash, u32 offset, size_t len); +#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, + const void *buf); + int (*erase)(struct udevice *dev, u32 offset, size_t len); +}; + +/* Access the serial operations for a device */ +#define sf_get_ops(dev) ((struct dm_spi_flash_ops *)(dev)->driver->ops) + +#ifdef CONFIG_DM_SPI_FLASH +int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs, + unsigned int max_hz, unsigned int spi_mode, + struct udevice **devp); + +/* Compatibility function - this is the old U-Boot API */ +struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, + unsigned int max_hz, unsigned int spi_mode); + +/* Compatibility function - this is the old U-Boot API */ +void spi_flash_free(struct spi_flash *flash); + +int spi_flash_remove(struct udevice *flash); + +static inline int spi_flash_read(struct spi_flash *flash, u32 offset, + size_t len, void *buf) +{ + return sf_get_ops(flash->dev)->read(flash->dev, offset, len, buf); +} + +static inline int spi_flash_write(struct spi_flash *flash, u32 offset, + size_t len, const void *buf) +{ + return sf_get_ops(flash->dev)->write(flash->dev, offset, len, buf); +} + +static inline int spi_flash_erase(struct spi_flash *flash, u32 offset, + size_t len) +{ + return sf_get_ops(flash->dev)->erase(flash->dev, offset, len); +} + +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); + +#else struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, unsigned int max_hz, unsigned int spi_mode); @@ -169,6 +191,7 @@ static inline int spi_flash_erase(struct spi_flash *flash, u32 offset, { return flash->erase(flash, offset, len); } +#endif void spi_boot(void) __noreturn; void spi_spl_load_image(uint32_t offs, unsigned int size, void *vdst); |