diff options
| author | Shaunak Saha <shaunak.saha@intel.com> | 2017-12-06 11:22:53 -0800 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2017-12-20 16:59:27 +0000 |
| commit | 41cfd5ba69783c33883d4515ffa15ac279afb831 (patch) | |
| tree | cd7c1eb29fd5c12341bcd7f9cb94cd1a5073efd5 /src/soc/intel/apollolake | |
| parent | ac7b506181f94ff2f5974e0205f38d27368c3686 (diff) | |
| download | coreboot-41cfd5ba69783c33883d4515ffa15ac279afb831.tar.xz | |
soc/intel/apollolake: Add SMI and SCI support for ESPI
This patch adds the SMI bits for SMI_EN, SMI_STS and GPE
register in pm.h. The southbridge handler for espi smi is
also added. In gpe.h we add GPE0A_ESPI_SCI_STS which is
bit 20 in GPE register and enables the setting of the
ESPI_SCI STS bit to generate a wake event and/or an SCI/SMI.
TEST= Boot to OS.
Change-Id: I2b8372ffbe0949ddd4aa83bdd7c0a01ade3ed40e
Signed-off-by: Shaunak Saha <shaunak.saha@intel.com>
Reviewed-on: https://review.coreboot.org/22758
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/intel/apollolake')
| -rw-r--r-- | src/soc/intel/apollolake/include/soc/gpe.h | 1 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/include/soc/pm.h | 11 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/smihandler.c | 3 |
3 files changed, 14 insertions, 1 deletions
diff --git a/src/soc/intel/apollolake/include/soc/gpe.h b/src/soc/intel/apollolake/include/soc/gpe.h index eb6e31f47a..53afb03896 100644 --- a/src/soc/intel/apollolake/include/soc/gpe.h +++ b/src/soc/intel/apollolake/include/soc/gpe.h @@ -34,6 +34,7 @@ #define GPE0A_SMB_WAK_STS 16 #define GPE0A_SATA_PME_STS 17 #define GPE0A_CNVI_PME_STS 18 +#define GPE0A_ESPI_SCI_STS 20 /* Present in GLK */ /* Group DW0 is reserved in Apollolake */ diff --git a/src/soc/intel/apollolake/include/soc/pm.h b/src/soc/intel/apollolake/include/soc/pm.h index 37e4cedc3e..34b9f965ae 100644 --- a/src/soc/intel/apollolake/include/soc/pm.h +++ b/src/soc/intel/apollolake/include/soc/pm.h @@ -47,6 +47,7 @@ #define SMI_EN 0x40 +#define SMI_ESPI 28 /* This bit is present in GLK*/ #define SMI_OCP_CSE 27 #define SMI_SPI 26 #define SMI_SPI_SSMI 25 @@ -71,6 +72,11 @@ #define SMI_EOS 1 #define SMI_GBL 0 +#if IS_ENABLED(CONFIG_SOC_ESPI) +#define ESPI_SMI_EN (1 << SMI_ESPI) /* Valid for GLK with ESPI */ +#else +#define ESPI_SMI_EN 0 +#endif #define USB_EN (1 << SMI_XHCI) /* Legacy USB2 SMI logic */ #define PERIODIC_EN (1 << SMI_PERIODIC) /* SMI on PERIODIC_STS in SMI_STS */ #define TCO_EN (1 << SMI_TCO) /* Enable TCO Logic (BIOSWE et al) */ @@ -97,10 +103,11 @@ * - on TCO events */ #define ENABLE_SMI_PARAMS \ - (APMC_EN | SLP_SMI_EN | GBL_SMI_EN | EOS | GPIO_EN) + (ESPI_SMI_EN | APMC_EN | SLP_SMI_EN | GBL_SMI_EN | EOS | GPIO_EN) #define SMI_STS 0x44 /* Bits for SMI status */ +#define ESPI_SMI_STS_BIT 28 #define PMC_OCP_SMI_STS 27 #define SPI_SMI_STS 26 #define SPI_SSMI_STS 25 @@ -138,6 +145,7 @@ #define GPE0_C 2 #define GPE0_D 3 #define GPE_STD GPE0_A +#define ESPI_STS (1 << 20) /* This bit is present in GLK */ #define SATA_PME_STS (1 << 17) #define SMB_WAK_STS (1 << 16) #define AVS_PME_STS (1 << 14) @@ -148,6 +156,7 @@ #define PCIE_GPE_STS (1 << 9) #define SWGPE_STS (1 << 2) #define GPE0_EN(x) (0x30 + (x * 4)) +#define ESPI_EN (1 << 20) /* This bit is present in GLK */ #define SATA_PME_EN (1 << 17) #define SMB_WAK_EN (1 << 16) #define AVS_PME_EN (1 << 14) diff --git a/src/soc/intel/apollolake/smihandler.c b/src/soc/intel/apollolake/smihandler.c index 22c793051d..37d63a1ba5 100644 --- a/src/soc/intel/apollolake/smihandler.c +++ b/src/soc/intel/apollolake/smihandler.c @@ -41,4 +41,7 @@ const smi_handler_t southbridge_smi[32] = { [GPIO_SMI_STS] = smihandler_southbridge_gpi, [TCO_SMI_STS] = smihandler_southbridge_tco, [PERIODIC_SMI_STS] = smihandler_southbridge_periodic, +#if IS_ENABLED(CONFIG_SOC_ESPI) + [ESPI_SMI_STS_BIT] = smihandler_southbridge_espi, +#endif }; |