diff options
| -rw-r--r-- | src/ec/google/chromeec/ec.c | 55 | ||||
| -rw-r--r-- | src/ec/google/chromeec/ec.h | 6 |
2 files changed, 60 insertions, 1 deletions
diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c index 1fadeec369..a329b5d937 100644 --- a/src/ec/google/chromeec/ec.c +++ b/src/ec/google/chromeec/ec.c @@ -55,6 +55,7 @@ int google_chromeec_kbbacklight(int percent) cec_cmd.cmd_data_out = &rsp_backlight; cec_cmd.cmd_size_in = sizeof(cmd_backlight); cec_cmd.cmd_size_out = sizeof(rsp_backlight); + cec_cmd.cmd_dev_index = 0; google_chromeec_command(&cec_cmd); printk(BIOS_DEBUG, "Google Chrome set keyboard backlight: %x status (%x)\n", rsp_backlight.percent, cec_cmd.cmd_code); @@ -87,6 +88,7 @@ static u32 google_chromeec_get_mask(u8 type) cmd.cmd_size_in = sizeof(req); cmd.cmd_data_out = &rsp; cmd.cmd_size_out = sizeof(rsp); + cmd.cmd_dev_index = 0; if (google_chromeec_command(&cmd) == 0) return rsp.mask; @@ -106,6 +108,7 @@ static int google_chromeec_set_mask(u8 type, u32 mask) cmd.cmd_size_in = sizeof(req); cmd.cmd_data_out = &rsp; cmd.cmd_size_out = sizeof(rsp); + cmd.cmd_dev_index = 0; return google_chromeec_command(&cmd); } @@ -123,16 +126,18 @@ int google_chromeec_clear_events_b(u32 mask) } #ifndef __SMM__ +#ifdef __PRE_RAM__ void google_chromeec_check_ec_image(int expected_type) { struct chromeec_command cec_cmd; - struct ec_response_get_version cec_resp = {{0}}; + struct ec_response_get_version cec_resp = { { 0 } }; cec_cmd.cmd_code = EC_CMD_GET_VERSION; cec_cmd.cmd_version = 0; cec_cmd.cmd_data_out = &cec_resp; cec_cmd.cmd_size_in = 0; cec_cmd.cmd_size_out = sizeof(cec_resp); + cec_cmd.cmd_dev_index = 0; google_chromeec_command(&cec_cmd); if (cec_cmd.cmd_code || cec_resp.current_image != expected_type) { @@ -145,6 +150,7 @@ void google_chromeec_check_ec_image(int expected_type) cec_cmd.cmd_data_in = &reboot_ec; cec_cmd.cmd_size_in = sizeof(reboot_ec); cec_cmd.cmd_size_out = 0; /* ignore response, if any */ + cec_cmd.cmd_dev_index = 0; printk(BIOS_DEBUG, "Rebooting with EC in RO mode:\n"); post_code(0); /* clear current post code */ google_chromeec_command(&cec_cmd); @@ -163,6 +169,46 @@ void google_chromeec_early_init(void) } } +void google_chromeec_check_pd_image(int expected_type) +{ + struct chromeec_command cec_cmd; + struct ec_response_get_version cec_resp = { { 0 } }; + + cec_cmd.cmd_code = EC_CMD_GET_VERSION; + cec_cmd.cmd_version = 0; + cec_cmd.cmd_data_out = &cec_resp; + cec_cmd.cmd_size_in = 0; + cec_cmd.cmd_size_out = sizeof(cec_resp); + cec_cmd.cmd_dev_index = 1; /* PD */ + google_chromeec_command(&cec_cmd); + + if (cec_cmd.cmd_code || cec_resp.current_image != expected_type) { + struct ec_params_reboot_ec reboot_ec; + /* Reboot the PD and make it come back in RO mode */ + reboot_ec.cmd = EC_REBOOT_COLD; + reboot_ec.flags = 0; + cec_cmd.cmd_code = EC_CMD_REBOOT_EC; + cec_cmd.cmd_version = 0; + cec_cmd.cmd_data_in = &reboot_ec; + cec_cmd.cmd_size_in = sizeof(reboot_ec); + cec_cmd.cmd_size_out = 0; /* ignore response, if any */ + cec_cmd.cmd_dev_index = 1; /* PD */ + printk(BIOS_DEBUG, "Rebooting PD to RO mode\n"); + google_chromeec_command(&cec_cmd); + udelay(1000); + } +} + +/* Check for recovery mode and ensure PD is in RO */ +void google_chromeec_early_pd_init(void) +{ + /* If in recovery ensure PD is running RO firmware. */ + if (recovery_mode_enabled()) { + google_chromeec_check_pd_image(EC_IMAGE_RO); + } +} +#endif + u16 google_chromeec_get_board_version(void) { struct chromeec_command cmd; @@ -173,6 +219,7 @@ u16 google_chromeec_get_board_version(void) cmd.cmd_size_in = 0; cmd.cmd_size_out = sizeof(board_v); cmd.cmd_data_out = &board_v; + cmd.cmd_dev_index = 0; if (google_chromeec_command(&cmd) != 0) return 0; @@ -196,6 +243,7 @@ int google_chromeec_vbnv_context(int is_read, uint8_t *data, int len) cec_cmd.cmd_data_out = &rsp_vbnvcontext; cec_cmd.cmd_size_in = sizeof(cmd_vbnvcontext); cec_cmd.cmd_size_out = is_read ? sizeof(rsp_vbnvcontext) : 0; + cec_cmd.cmd_dev_index = 0; cmd_vbnvcontext.op = is_read ? EC_VBNV_CONTEXT_OP_READ : EC_VBNV_CONTEXT_OP_WRITE; @@ -281,6 +329,7 @@ int google_chromeec_i2c_xfer(uint8_t chip, uint8_t addr, int alen, cmd.cmd_size_in = size + write_len; cmd.cmd_data_out = r; cmd.cmd_size_out = sizeof(*r) + read_len; + cmd.cmd_dev_index = 0; rv = google_chromeec_command(&cmd); if (rv != 0) return rv; @@ -384,6 +433,7 @@ int google_chromeec_set_usb_charge_mode(u8 port_id, enum usb_charge_mode mode) cmd.cmd_data_in = &set_mode; cmd.cmd_size_out = 0; cmd.cmd_data_out = NULL; + cmd.cmd_dev_index = 0; return google_chromeec_command(&cmd); } @@ -403,6 +453,7 @@ int google_chromeec_hello(void) cec_cmd.cmd_data_out = &rsp_hello.out_data; cec_cmd.cmd_size_in = sizeof(cmd_hello.in_data); cec_cmd.cmd_size_out = sizeof(rsp_hello.out_data); + cec_cmd.cmd_dev_index = 0; google_chromeec_command(&cec_cmd); printk(BIOS_DEBUG, "Google Chrome EC: Hello got back %x status (%x)\n", rsp_hello.out_data, cec_cmd.cmd_code); @@ -425,6 +476,7 @@ void google_chromeec_init(void) cec_cmd.cmd_data_out = &cec_resp; cec_cmd.cmd_size_in = 0; cec_cmd.cmd_size_out = sizeof(cec_resp); + cec_cmd.cmd_dev_index = 0; google_chromeec_command(&cec_cmd); if (cec_cmd.cmd_code) { @@ -451,6 +503,7 @@ void google_chromeec_init(void) cec_cmd.cmd_data_in = &reboot_ec; cec_cmd.cmd_size_in = sizeof(reboot_ec); cec_cmd.cmd_size_out = 0; /* ignore response, if any */ + cec_cmd.cmd_dev_index = 0; printk(BIOS_DEBUG, "Rebooting with EC in RO mode:\n"); post_code(0); /* clear current post code */ google_chromeec_command(&cec_cmd); diff --git a/src/ec/google/chromeec/ec.h b/src/ec/google/chromeec/ec.h index e0db8c17ee..cdf94dae16 100644 --- a/src/ec/google/chromeec/ec.h +++ b/src/ec/google/chromeec/ec.h @@ -36,10 +36,15 @@ int google_ec_running_ro(void); void google_chromeec_init(void); #endif +#ifdef __PRE_RAM__ /* If recovery mode is enabled and EC is not running RO firmware reboot. */ void google_chromeec_early_init(void); +void google_chromeec_early_pd_init(void); /* Reboot if EC firmware is not expected type. */ void google_chromeec_check_ec_image(int expected_type); +void google_chromeec_check_pd_image(int expected_type); +#endif + uint8_t google_chromeec_calc_checksum(const uint8_t *data, int size); u16 google_chromeec_get_board_version(void); u32 google_chromeec_get_events_b(void); @@ -67,6 +72,7 @@ struct chromeec_command { uint16_t cmd_size_in; /* size of command data */ uint16_t cmd_size_out; /* expected size of command response in, * actual received size out */ + int cmd_dev_index;/* device index for passthru */ }; /* |