diff options
Diffstat (limited to 'src/mainboard/google/gale/verstage.c')
| -rw-r--r-- | src/mainboard/google/gale/verstage.c | 55 |
1 files changed, 27 insertions, 28 deletions
diff --git a/src/mainboard/google/gale/verstage.c b/src/mainboard/google/gale/verstage.c index cdc4386988..1a3f5a49bd 100644 --- a/src/mainboard/google/gale/verstage.c +++ b/src/mainboard/google/gale/verstage.c @@ -24,34 +24,33 @@ static void ipq_setup_tpm(void) { -#ifdef CONFIG_I2C_TPM - gpio_tlmm_config_set(TPM_RESET_GPIO, FUNC_SEL_GPIO, - GPIO_PULL_UP, GPIO_6MA, 1); - gpio_set(TPM_RESET_GPIO, 0); - udelay(100); - gpio_set(TPM_RESET_GPIO, 1); - - /* - * ----- Per the SLB 9615XQ1.2 spec ----- - * - * 4.7.1 Reset Timing - * - * The TPM_ACCESS_x.tpmEstablishment bit has the correct value - * and the TPM_ACCESS_x.tpmRegValidSts bit is typically set - * within 8ms after RESET# is deasserted. - * - * The TPM is ready to receive a command after less than 30 ms. - * - * -------------------------------------- - * - * I'm assuming this means "wait for 30ms" - * - * If we don't wait here, subsequent QUP I2C accesses - * to the TPM either fail or timeout. - */ - mdelay(30); - -#endif /* CONFIG_I2C_TPM */ + if (IS_ENABLED(CONFIG_I2C_TPM)) { + gpio_tlmm_config_set(TPM_RESET_GPIO, FUNC_SEL_GPIO, + GPIO_PULL_UP, GPIO_6MA, 1); + gpio_set(TPM_RESET_GPIO, 0); + udelay(100); + gpio_set(TPM_RESET_GPIO, 1); + + /* + * ----- Per the SLB 9615XQ1.2 spec ----- + * + * 4.7.1 Reset Timing + * + * The TPM_ACCESS_x.tpmEstablishment bit has the correct value + * and the TPM_ACCESS_x.tpmRegValidSts bit is typically set + * within 8ms after RESET# is deasserted. + * + * The TPM is ready to receive a command after less than 30 ms. + * + * -------------------------------------- + * + * I'm assuming this means "wait for 30ms" + * + * If we don't wait here, subsequent QUP I2C accesses + * to the TPM either fail or timeout. + */ + mdelay(30); + } } void verstage_mainboard_init(void) |