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| author | Simon Glass <sjg@chromium.org> | 2015-03-26 09:29:30 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-04-18 11:11:15 -0600 |
| commit | 72a38e06a20129209eaa0e5211cbf50b192de688 (patch) | |
| tree | 4fc0dbb49a2b2810d6ad21bf524637cb5bc732b2 /drivers/misc/cros_ec_lpc.c | |
| parent | 90b16d1491facd55909bdeca1326766dd5d0b925 (diff) | |
| download | talos-obmc-uboot-72a38e06a20129209eaa0e5211cbf50b192de688.tar.gz talos-obmc-uboot-72a38e06a20129209eaa0e5211cbf50b192de688.zip | |
dm: cros_ec: Convert cros_ec LPC driver to driver model
This is the last driver to be converted. It requires an LPC bus and a
special check_version() method.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/misc/cros_ec_lpc.c')
| -rw-r--r-- | drivers/misc/cros_ec_lpc.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/misc/cros_ec_lpc.c b/drivers/misc/cros_ec_lpc.c index 07624a136f..b94501e474 100644 --- a/drivers/misc/cros_ec_lpc.c +++ b/drivers/misc/cros_ec_lpc.c @@ -14,6 +14,7 @@ */ #include <common.h> +#include <dm.h> #include <command.h> #include <cros_ec.h> #include <asm/io.h> @@ -40,10 +41,18 @@ static int wait_for_sync(struct cros_ec_dev *dev) 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; @@ -178,7 +187,11 @@ int cros_ec_lpc_init(struct cros_ec_dev *dev, const void *blob) * 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) @@ -192,3 +205,28 @@ int cros_ec_lpc_check_version(struct cros_ec_dev *dev) printf("%s: ERROR: old EC interface not supported\n", __func__); return -1; } + +#ifdef CONFIG_DM_CROS_EC +static int cros_ec_probe(struct udevice *dev) +{ + return cros_ec_register(dev); +} + +static struct dm_cros_ec_ops cros_ec_ops = { + .command = cros_ec_lpc_command, + .check_version = cros_ec_lpc_check_version, +}; + +static const struct udevice_id cros_ec_ids[] = { + { .compatible = "google,cros-ec" }, + { } +}; + +U_BOOT_DRIVER(cros_ec_lpc) = { + .name = "cros_ec", + .id = UCLASS_CROS_EC, + .of_match = cros_ec_ids, + .probe = cros_ec_probe, + .ops = &cros_ec_ops, +}; +#endif |
