config DM_SERIAL
default y
-config DM_CROS_EC
- default y
-
config DM_SPI
default y
config SYS_CONFIG_NAME
default "peach-pi"
-config DM_CROS_EC
- default y
-
endif
if TARGET_PEACH_PIT
config SYS_CONFIG_NAME
default "peach-pit"
-config DM_CROS_EC
- default y
-
endif
if TARGET_SMDK5420
DECLARE_GLOBAL_DATA_PTR;
-#ifndef CONFIG_DM_CROS_EC
-struct local_info {
- struct cros_ec_dev *cros_ec_dev; /* Pointer to cros_ec device */
- int cros_ec_err; /* Error for cros_ec, 0 if ok */
-};
-
-static struct local_info local;
-#endif
-
struct cros_ec_dev *board_get_cros_ec_dev(void)
{
-#ifdef CONFIG_DM_CROS_EC
struct udevice *dev;
int ret;
return NULL;
}
return dev_get_uclass_priv(dev);
-#else
- return local.cros_ec_dev;
-#endif
-}
-
-static int board_init_cros_ec_devices(const void *blob)
-{
-#ifndef CONFIG_DM_CROS_EC
- local.cros_ec_err = cros_ec_init(blob, &local.cros_ec_dev);
- if (local.cros_ec_err)
- return -1; /* Will report in board_late_init() */
-#endif
-
- return 0;
}
int cros_ec_board_init(void)
{
- return board_init_cros_ec_devices(gd->fdt_blob);
+ return 0;
}
int cros_ec_get_error(void)
{
-#ifdef CONFIG_DM_CROS_EC
struct udevice *dev;
int ret;
return ret;
return 0;
-#else
- return local.cros_ec_err;
-#endif
}
CONFIG_DM=y
CONFIG_DEFAULT_DEVICE_TREE="sandbox"
CONFIG_CROS_EC=y
-CONFIG_DM_CROS_EC=y
CONFIG_CROS_EC_SANDBOX=y
CONFIG_CROS_EC_KEYB=y
CONFIG_CMD_CROS_EC=y
CONFIG_TARGET_SNOW=y
CONFIG_DEFAULT_DEVICE_TREE="exynos5250-snow"
CONFIG_CROS_EC=y
-CONFIG_DM_CROS_EC=y
CONFIG_CROS_EC_I2C=y
CONFIG_CROS_EC_KEYB=y
CONFIG_CMD_CROS_EC=y
provides a faster and more robust interface than I2C but the bugs
are less interesting.
-config DM_CROS_EC
- bool "Enable Driver Model for Chrome OS EC"
- depends on DM
- help
- Enable driver model for the Chrome OS EC interface. This
- allows the cros_ec SPI driver to operate with CONFIG_DM_SPI
- but otherwise makes few changes. Since cros_ec also supports
- LPC (which doesn't support driver model yet), a full
- conversion is not yet possible.
-
config CONFIG_FSL_SEC_MON
bool "Enable FSL SEC_MON Driver"
help
CROS_EC_CMD_HASH_TIMEOUT_MS = 2000,
};
-#ifndef CONFIG_DM_CROS_EC
-static struct cros_ec_dev static_dev, *last_dev;
-#endif
-
DECLARE_GLOBAL_DATA_PTR;
/* Note: depends on enum ec_current_image */
const void *dout, int dout_len,
uint8_t **dinp, int din_len)
{
-#ifdef CONFIG_DM_CROS_EC
struct dm_cros_ec_ops *ops;
-#endif
int out_bytes, in_bytes;
int rv;
if (in_bytes < 0)
return in_bytes;
-#ifdef CONFIG_DM_CROS_EC
ops = dm_cros_ec_get_ops(dev->dev);
rv = ops->packet ? ops->packet(dev->dev, out_bytes, in_bytes) : -ENOSYS;
-#else
- switch (dev->interface) {
-#ifdef CONFIG_CROS_EC_SPI
- case CROS_EC_IF_SPI:
- rv = cros_ec_spi_packet(dev, out_bytes, in_bytes);
- break;
-#endif
-#ifdef CONFIG_CROS_EC_SANDBOX
- case CROS_EC_IF_SANDBOX:
- rv = cros_ec_sandbox_packet(dev, out_bytes, in_bytes);
- break;
-#endif
- case CROS_EC_IF_NONE:
- /* TODO: support protocol 3 for LPC, I2C; for now fall through */
- default:
- debug("%s: Unsupported interface\n", __func__);
- rv = -1;
- }
-#endif
if (rv < 0)
return rv;
const void *dout, int dout_len,
uint8_t **dinp, int din_len)
{
-#ifdef CONFIG_DM_CROS_EC
struct dm_cros_ec_ops *ops;
-#endif
int ret = -1;
/* Handle protocol version 3 support */
dout, dout_len, dinp, din_len);
}
-#ifdef CONFIG_DM_CROS_EC
ops = dm_cros_ec_get_ops(dev->dev);
ret = ops->command(dev->dev, cmd, cmd_version,
(const uint8_t *)dout, dout_len, dinp, din_len);
-#else
- switch (dev->interface) {
-#ifdef CONFIG_CROS_EC_SPI
- case CROS_EC_IF_SPI:
- ret = cros_ec_spi_command(dev, cmd, cmd_version,
- (const uint8_t *)dout, dout_len,
- dinp, din_len);
- break;
-#endif
-#ifdef CONFIG_CROS_EC_I2C
- case CROS_EC_IF_I2C:
- ret = cros_ec_i2c_command(dev, cmd, cmd_version,
- (const uint8_t *)dout, dout_len,
- dinp, din_len);
- break;
-#endif
-#ifdef CONFIG_CROS_EC_LPC
- case CROS_EC_IF_LPC:
- ret = cros_ec_lpc_command(dev, cmd, cmd_version,
- (const uint8_t *)dout, dout_len,
- dinp, din_len);
- break;
-#endif
- case CROS_EC_IF_NONE:
- default:
- ret = -1;
- }
-#endif
return ret;
}
struct ec_params_hello req;
struct ec_response_hello *resp;
-#ifdef CONFIG_DM_CROS_EC
struct dm_cros_ec_ops *ops;
int ret;
if (ret)
return ret;
}
-#else
-#ifdef CONFIG_CROS_EC_LPC
- /* LPC has its own way of doing this */
- if (dev->interface == CROS_EC_IF_LPC)
- return cros_ec_lpc_check_version(dev);
-#endif
-#endif
/*
* TODO(sjg@chromium.org).
return 0;
}
-#ifndef CONFIG_DM_CROS_EC
-/**
- * Decode EC interface details from the device tree and allocate a suitable
- * device.
- *
- * @param blob Device tree blob
- * @param node Node to decode from
- * @param devp Returns a pointer to the new allocated device
- * @return 0 if ok, -1 on error
- */
-static int cros_ec_decode_fdt(const void *blob, int node,
- struct cros_ec_dev **devp)
-{
- enum fdt_compat_id compat;
- struct cros_ec_dev *dev;
- int parent;
-
- /* See what type of parent we are inside (this is expensive) */
- parent = fdt_parent_offset(blob, node);
- if (parent < 0) {
- debug("%s: Cannot find node parent\n", __func__);
- return -1;
- }
-
- dev = &static_dev;
- dev->node = node;
- dev->parent_node = parent;
-
- compat = fdtdec_lookup(blob, parent);
- switch (compat) {
-#ifdef CONFIG_CROS_EC_SPI
- case COMPAT_SAMSUNG_EXYNOS_SPI:
- dev->interface = CROS_EC_IF_SPI;
- if (cros_ec_spi_decode_fdt(dev, blob))
- return -1;
- break;
-#endif
-#ifdef CONFIG_CROS_EC_I2C
- case COMPAT_SAMSUNG_S3C2440_I2C:
- dev->interface = CROS_EC_IF_I2C;
- if (cros_ec_i2c_decode_fdt(dev, blob))
- return -1;
- break;
-#endif
-#ifdef CONFIG_CROS_EC_LPC
- case COMPAT_INTEL_LPC:
- dev->interface = CROS_EC_IF_LPC;
- break;
-#endif
-#ifdef CONFIG_CROS_EC_SANDBOX
- case COMPAT_SANDBOX_HOST_EMULATION:
- dev->interface = CROS_EC_IF_SANDBOX;
- break;
-#endif
- default:
- debug("%s: Unknown compat id %d\n", __func__, compat);
- return -1;
- }
-
- gpio_request_by_name_nodev(blob, node, "ec-interrupt", 0, &dev->ec_int,
- GPIOD_IS_IN);
- dev->optimise_flash_write = fdtdec_get_bool(blob, node,
- "optimise-flash-write");
- *devp = dev;
-
- return 0;
-}
-#endif
-
-#ifdef CONFIG_DM_CROS_EC
int cros_ec_register(struct udevice *dev)
{
struct cros_ec_dev *cdev = dev_get_uclass_priv(dev);
return 0;
}
-#else
-int cros_ec_init(const void *blob, struct cros_ec_dev **cros_ecp)
-{
- struct cros_ec_dev *dev;
- char id[MSG_BYTES];
-#ifdef CONFIG_DM_CROS_EC
- struct udevice *udev;
- int ret;
-
- ret = uclass_find_device(UCLASS_CROS_EC, 0, &udev);
- if (!ret)
- device_remove(udev);
- ret = uclass_get_device(UCLASS_CROS_EC, 0, &udev);
- if (ret)
- return ret;
- dev = dev_get_uclass_priv(udev);
- return 0;
-#else
- int node = 0;
-
- *cros_ecp = NULL;
- do {
- node = fdtdec_next_compatible(blob, node,
- COMPAT_GOOGLE_CROS_EC);
- if (node < 0) {
- debug("%s: Node not found\n", __func__);
- return 0;
- }
- } while (!fdtdec_get_is_enabled(blob, node));
-
- if (cros_ec_decode_fdt(blob, node, &dev)) {
- debug("%s: Failed to decode device.\n", __func__);
- return -CROS_EC_ERR_FDT_DECODE;
- }
-
- switch (dev->interface) {
-#ifdef CONFIG_CROS_EC_SPI
- case CROS_EC_IF_SPI:
- if (cros_ec_spi_init(dev, blob)) {
- debug("%s: Could not setup SPI interface\n", __func__);
- return -CROS_EC_ERR_DEV_INIT;
- }
- break;
-#endif
-#ifdef CONFIG_CROS_EC_I2C
- case CROS_EC_IF_I2C:
- if (cros_ec_i2c_init(dev, blob))
- return -CROS_EC_ERR_DEV_INIT;
- break;
-#endif
-#ifdef CONFIG_CROS_EC_LPC
- case CROS_EC_IF_LPC:
- if (cros_ec_lpc_init(dev, blob))
- return -CROS_EC_ERR_DEV_INIT;
- break;
-#endif
-#ifdef CONFIG_CROS_EC_SANDBOX
- case CROS_EC_IF_SANDBOX:
- if (cros_ec_sandbox_init(dev, blob))
- return -CROS_EC_ERR_DEV_INIT;
- break;
-#endif
- case CROS_EC_IF_NONE:
- default:
- return 0;
- }
-#endif
-
- if (cros_ec_check_version(dev)) {
- debug("%s: Could not detect CROS-EC version\n", __func__);
- return -CROS_EC_ERR_CHECK_VERSION;
- }
-
- if (cros_ec_read_id(dev, id, sizeof(id))) {
- debug("%s: Could not read KBC ID\n", __func__);
- return -CROS_EC_ERR_READ_ID;
- }
-
- /* Remember this device for use by the cros_ec command */
- *cros_ecp = dev;
-#ifndef CONFIG_DM_CROS_EC
- last_dev = dev;
-#endif
- debug("Google Chrome EC CROS-EC driver ready, id '%s'\n", id);
-
- return 0;
-}
-#endif
int cros_ec_decode_region(int argc, char * const argv[])
{
static int do_cros_ec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
struct cros_ec_dev *dev;
-#ifdef CONFIG_DM_CROS_EC
struct udevice *udev;
-#endif
const char *cmd;
int ret = 0;
cmd = argv[1];
if (0 == strcmp("init", cmd)) {
-#ifdef CONFIG_DM_CROS_EC
/* Remove any existing device */
ret = uclass_find_device(UCLASS_CROS_EC, 0, &udev);
if (!ret)
device_remove(udev);
ret = uclass_get_device(UCLASS_CROS_EC, 0, &udev);
-#else
- ret = cros_ec_init(gd->fdt_blob, &dev);
-#endif
if (ret) {
printf("Could not init cros_ec device (err %d)\n", ret);
return 1;
return 0;
}
-#ifdef CONFIG_DM_CROS_EC
ret = uclass_get_device(UCLASS_CROS_EC, 0, &udev);
if (ret) {
printf("Cannot get cros-ec device (err=%d)\n", ret);
return 1;
}
dev = dev_get_uclass_priv(udev);
-#else
- /* Just use the last allocated device; there should be only one */
- if (!last_dev) {
- printf("No CROS-EC device available\n");
- return 1;
- }
- dev = last_dev;
-#endif
if (0 == strcmp("id", cmd)) {
char id[MSG_BYTES];
);
#endif
-#ifdef CONFIG_DM_CROS_EC
UCLASS_DRIVER(cros_ec) = {
.id = UCLASS_CROS_EC,
.name = "cros_ec",
.per_device_auto_alloc_size = sizeof(struct cros_ec_dev),
};
-#endif
return 0;
}
-#ifdef CONFIG_DM_CROS_EC
int cros_ec_lpc_command(struct udevice *udev, uint8_t cmd, int cmd_version,
const uint8_t *dout, int dout_len,
uint8_t **dinp, int din_len)
{
struct cros_ec_dev *dev = dev_get_uclass_priv(udev);
-#else
-int cros_ec_lpc_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
- const uint8_t *dout, int dout_len,
- uint8_t **dinp, int din_len)
-{
-#endif
const int cmd_addr = EC_LPC_ADDR_HOST_CMD;
const int data_addr = EC_LPC_ADDR_HOST_DATA;
const int args_addr = EC_LPC_ADDR_HOST_ARGS;
* seeing whether the EC sets the EC_HOST_ARGS_FLAG_FROM_HOST flag
* in args when it responds.
*/
-#ifdef CONFIG_DM_CROS_EC
static int cros_ec_lpc_check_version(struct udevice *dev)
-#else
-int cros_ec_lpc_check_version(struct cros_ec_dev *dev)
-#endif
{
if (inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_ID) == 'E' &&
inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_ID + 1)
return -1;
}
-#ifdef CONFIG_DM_CROS_EC
static int cros_ec_probe(struct udevice *dev)
{
return cros_ec_register(dev);
.probe = cros_ec_probe,
.ops = &cros_ec_ops,
};
-#endif
return len;
}
-#ifdef CONFIG_DM_CROS_EC
int cros_ec_sandbox_packet(struct udevice *udev, int out_bytes, int in_bytes)
{
struct cros_ec_dev *dev = dev_get_uclass_priv(udev);
struct ec_state *ec = dev_get_priv(dev->dev);
-#else
-int cros_ec_sandbox_packet(struct cros_ec_dev *dev, int out_bytes,
- int in_bytes)
-{
- struct ec_state *ec = &s_state;
-#endif
struct ec_host_request *req_hdr = (struct ec_host_request *)dev->dout;
const void *req_data = req_hdr + 1;
struct ec_host_response *resp_hdr = (struct ec_host_response *)dev->din;
return in_bytes;
}
-int cros_ec_sandbox_decode_fdt(struct cros_ec_dev *dev, const void *blob)
-{
- return 0;
-}
-
void cros_ec_check_keyboard(struct cros_ec_dev *dev)
{
-#ifdef CONFIG_DM_CROS_EC
struct ec_state *ec = dev_get_priv(dev->dev);
-#else
- struct ec_state *ec = &s_state;
-#endif
ulong start;
printf("Press keys for EC to detect on reset (ESC=recovery)...");
}
}
-#ifdef CONFIG_DM_CROS_EC
int cros_ec_probe(struct udevice *dev)
{
struct ec_state *ec = dev->priv;
return cros_ec_register(dev);
}
-#else
-
-/**
- * Initialize sandbox EC emulation.
- *
- * @param dev CROS_EC device
- * @param blob Device tree blob
- * @return 0 if ok, -1 on error
- */
-int cros_ec_sandbox_init(struct cros_ec_dev *dev, const void *blob)
-{
- struct ec_state *ec = &s_state;
- int node;
- int err;
-
- node = fdtdec_next_compatible(blob, 0, COMPAT_GOOGLE_CROS_EC);
- if (node < 0) {
- debug("Failed to find chrome-ec node'\n");
- return -1;
- }
-
- err = cros_ec_decode_ec_flash(blob, node, &ec->ec_config);
- if (err)
- return err;
-
- node = fdtdec_next_compatible(blob, 0, COMPAT_GOOGLE_CROS_EC_KEYB);
- if (node < 0) {
- debug("%s: No cros_ec keyboard found\n", __func__);
- } else if (keyscan_read_fdt_matrix(ec, blob, node)) {
- debug("%s: Could not read key matrix\n", __func__);
- return -1;
- }
-
- /* If we loaded EC data, check that the length matches */
- if (ec->flash_data &&
- ec->flash_data_len != ec->ec_config.flash.length) {
- printf("EC data length is %x, expected %x, discarding data\n",
- ec->flash_data_len, ec->ec_config.flash.length);
- os_free(ec->flash_data);
- ec->flash_data = NULL;
- }
-
- /* Otherwise allocate the memory */
- if (!ec->flash_data) {
- ec->flash_data_len = ec->ec_config.flash.length;
- ec->flash_data = os_malloc(ec->flash_data_len);
- if (!ec->flash_data)
- return -ENOMEM;
- }
-
- return 0;
-}
-#endif
-
-#ifdef CONFIG_DM_CROS_EC
struct dm_cros_ec_ops cros_ec_ops = {
.packet = cros_ec_sandbox_packet,
};
.priv_auto_alloc_size = sizeof(struct ec_state),
.ops = &cros_ec_ops,
};
-#endif
#include <cros_ec_message.h>
#include <asm/gpio.h>
-#ifndef CONFIG_DM_CROS_EC
-/* Which interface is the device on? */
-enum cros_ec_interface_t {
- CROS_EC_IF_NONE,
- CROS_EC_IF_SPI,
- CROS_EC_IF_I2C,
- 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 */
- int parent_node; /* Our parent node (interface) */
- unsigned int cs; /* Our chip select */
- unsigned int addr; /* Device address (for I2C) */
- unsigned int bus_num; /* Bus number (for I2C) */
- unsigned int max_frequency; /* Maximum interface frequency */
-#endif
struct gpio_desc 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 */
*/
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,
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);
-int cros_ec_spi_init(struct cros_ec_dev *dev, const void *blob);
-int cros_ec_lpc_init(struct cros_ec_dev *dev, const void *blob);
-int cros_ec_sandbox_init(struct cros_ec_dev *dev, const void *blob);
-
-/**
- * Read information from the fdt for the i2c cros_ec interface
- *
- * @param dev CROS-EC device
- * @param blob Device tree blob
- * @return 0 if ok, -1 if we failed to read all required information
- */
-int cros_ec_i2c_decode_fdt(struct cros_ec_dev *dev, const void *blob);
-
-/**
- * Read information from the fdt for the spi cros_ec interface
- *
- * @param dev CROS-EC device
- * @param blob Device tree blob
- * @return 0 if ok, -1 if we failed to read all required information
- */
-int cros_ec_spi_decode_fdt(struct cros_ec_dev *dev, const void *blob);
-
-/**
- * Read information from the fdt for the sandbox cros_ec interface
- *
- * @param dev CROS-EC device
- * @param blob Device tree blob
- * @return 0 if ok, -1 if we failed to read all required information
- */
-int cros_ec_sandbox_decode_fdt(struct cros_ec_dev *dev, const void *blob);
-
-/**
- * Check whether the LPC interface supports new-style commands.
- *
- * LPC has its own way of doing this, which involves checking LPC values
- * visible to the host. Do this, and update dev->protocol_version accordingly.
- *
- * @param dev CROS-EC device to check
- */
-int cros_ec_lpc_check_version(struct cros_ec_dev *dev);
-
-/**
- * Send a command to an I2C CROS-EC device and return the reply.
- *
- * This rather complicated function deals with sending both old-style and
- * new-style commands. The old ones have just a command byte and arguments.
- * The new ones have version, command, arg-len, [args], chksum so are 3 bytes
- * longer.
- *
- * The device's internal input/output buffers are used.
- *
- * @param dev CROS-EC device
- * @param cmd Command to send (EC_CMD_...)
- * @param cmd_version Version of command to send (EC_VER_...)
- * @param dout Output data (may be NULL If dout_len=0)
- * @param dout_len Size of output data in bytes
- * @param dinp Returns pointer to response data
- * @param din_len Maximum size of response in bytes
- * @return number of bytes in response, or -1 on error
- */
-int cros_ec_i2c_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
- const uint8_t *dout, int dout_len,
- uint8_t **dinp, int din_len);
-
-/**
- * Send a command to a LPC CROS-EC device and return the reply.
- *
- * The device's internal input/output buffers are used.
- *
- * @param dev CROS-EC device
- * @param cmd Command to send (EC_CMD_...)
- * @param cmd_version Version of command to send (EC_VER_...)
- * @param dout Output data (may be NULL If dout_len=0)
- * @param dout_len Size of output data in bytes
- * @param dinp Returns pointer to response data
- * @param din_len Maximum size of response in bytes
- * @return number of bytes in response, or -1 on error
- */
-int cros_ec_lpc_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
- const uint8_t *dout, int dout_len,
- uint8_t **dinp, int din_len);
-
-int cros_ec_spi_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
- const uint8_t *dout, int dout_len,
- uint8_t **dinp, int din_len);
-
-/**
- * Send a packet to a CROS-EC device and return the response packet.
- *
- * Expects the request packet to be stored in dev->dout. Stores the response
- * packet in dev->din.
- *
- * @param dev CROS-EC device
- * @param out_bytes Size of request packet to output
- * @param in_bytes Maximum size of response packet to receive
- * @return number of bytes in response packet, or <0 on error
- */
-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.
*
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