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author | Stefano Babic <sbabic@denx.de> | 2014-04-04 11:35:30 +0200 |
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committer | Stefano Babic <sbabic@denx.de> | 2014-04-04 11:35:30 +0200 |
commit | 1cad23c5f471d695bed1e3907e30caee3c2a3056 (patch) | |
tree | 34e035df5db9b327aeae36eff9d0645a915e3177 /drivers/misc/cros_ec_lpc.c | |
parent | 5dd73bc0a40a4b318195eab871a1f535aad6b43b (diff) | |
parent | 00b132bf34c5be86a108ac7fe8231ad9e97f6de4 (diff) | |
download | u-boot-imx-1cad23c5f471d695bed1e3907e30caee3c2a3056.zip u-boot-imx-1cad23c5f471d695bed1e3907e30caee3c2a3056.tar.gz u-boot-imx-1cad23c5f471d695bed1e3907e30caee3c2a3056.tar.bz2 |
Merge branch 'master' of git://git.denx.de/u-boot-arm into master
Conflicts:
arch/arm/cpu/arm926ejs/mxs/mxsimage.mx23.cfg
arch/arm/cpu/arm926ejs/mxs/mxsimage.mx28.cfg
Signed-off-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'drivers/misc/cros_ec_lpc.c')
-rw-r--r-- | drivers/misc/cros_ec_lpc.c | 80 |
1 files changed, 3 insertions, 77 deletions
diff --git a/drivers/misc/cros_ec_lpc.c b/drivers/misc/cros_ec_lpc.c index 7257476..0e02671 100644 --- a/drivers/misc/cros_ec_lpc.c +++ b/drivers/misc/cros_ec_lpc.c @@ -40,71 +40,6 @@ static int wait_for_sync(struct cros_ec_dev *dev) return 0; } -/** - * 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 Place to put pointer to response data - * @param din_len Maximum size of response in bytes - * @return number of bytes in response, or -1 on error - */ -static int old_lpc_command(struct cros_ec_dev *dev, uint8_t cmd, - const uint8_t *dout, int dout_len, - uint8_t **dinp, int din_len) -{ - int ret, i; - - if (dout_len > EC_OLD_PARAM_SIZE) { - debug("%s: Cannot send %d bytes\n", __func__, dout_len); - return -1; - } - - if (din_len > EC_OLD_PARAM_SIZE) { - debug("%s: Cannot receive %d bytes\n", __func__, din_len); - return -1; - } - - if (wait_for_sync(dev)) { - debug("%s: Timeout waiting ready\n", __func__); - return -1; - } - - debug_trace("cmd: %02x, ", cmd); - for (i = 0; i < dout_len; i++) { - debug_trace("%02x ", dout[i]); - outb(dout[i], EC_LPC_ADDR_OLD_PARAM + i); - } - outb(cmd, EC_LPC_ADDR_HOST_CMD); - debug_trace("\n"); - - if (wait_for_sync(dev)) { - debug("%s: Timeout waiting ready\n", __func__); - return -1; - } - - ret = inb(EC_LPC_ADDR_HOST_DATA); - if (ret) { - debug("%s: CROS_EC result code %d\n", __func__, ret); - return -ret; - } - - debug_trace("resp: %02x, ", ret); - for (i = 0; i < din_len; i++) { - dev->din[i] = inb(EC_LPC_ADDR_OLD_PARAM + i); - debug_trace("%02x ", dev->din[i]); - } - debug_trace("\n"); - *dinp = dev->din; - - return din_len; -} - 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) @@ -119,11 +54,6 @@ int cros_ec_lpc_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version, int csum; int i; - /* Fall back to old-style command interface if args aren't supported */ - if (!dev->cmd_version_is_supported) - return old_lpc_command(dev, cmd, dout, dout_len, dinp, - din_len); - if (dout_len > EC_HOST_PARAM_SIZE) { debug("%s: Cannot send %d bytes\n", __func__, dout_len); return -1; @@ -256,13 +186,9 @@ int cros_ec_lpc_check_version(struct cros_ec_dev *dev) (inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_HOST_CMD_FLAGS) & EC_HOST_CMD_FLAG_LPC_ARGS_SUPPORTED)) { - dev->cmd_version_is_supported = 1; - } else { - /* We are going to use the old IO ports */ - dev->cmd_version_is_supported = 0; + return 0; } - debug("lpc: version %s\n", dev->cmd_version_is_supported ? - "new" : "old"); - return 0; + printf("%s: ERROR: old EC interface not supported\n", __func__); + return -1; } |