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-rw-r--r--src/soc/intel/apollolake/bootblock/bootblock.c21
-rw-r--r--src/soc/intel/apollolake/chip.h4
2 files changed, 23 insertions, 2 deletions
diff --git a/src/soc/intel/apollolake/bootblock/bootblock.c b/src/soc/intel/apollolake/bootblock/bootblock.c
index fe0cb9377a..00c47f3d28 100644
--- a/src/soc/intel/apollolake/bootblock/bootblock.c
+++ b/src/soc/intel/apollolake/bootblock/bootblock.c
@@ -17,6 +17,7 @@
#include <soc/iomap.h>
#include <soc/cpu.h>
#include <soc/gpio.h>
+#include <soc/soc_chip.h>
#include <soc/systemagent.h>
#include <soc/pci_devs.h>
#include <soc/pm.h>
@@ -82,8 +83,24 @@ void bootblock_soc_early_init(void)
/* Prepare UART for serial console. */
if (CONFIG(INTEL_LPSS_UART_FOR_CONSOLE))
uart_bootblock_init();
- if (CONFIG(DRIVERS_UART_8250IO))
- lpc_io_setup_comm_a_b();
+
+ uint16_t io_enables = LPC_IOE_SUPERIO_2E_2F | LPC_IOE_KBC_60_64 |
+ LPC_IOE_EC_62_66;
+
+ const config_t *config = config_of_soc();
+
+
+ if (config->lpc_ioe) {
+ io_enables = config->lpc_ioe & 0x3f0f;
+ lpc_set_fixed_io_ranges(config->lpc_iod, 0x1377);
+ } else {
+ /* IO Decode Range */
+ if (CONFIG(DRIVERS_UART_8250IO))
+ lpc_io_setup_comm_a_b();
+ }
+
+ /* IO Decode Enable */
+ lpc_enable_fixed_io_ranges(io_enables);
if (CONFIG(TPM_ON_FAST_SPI))
tpm_enable();
diff --git a/src/soc/intel/apollolake/chip.h b/src/soc/intel/apollolake/chip.h
index f531381fac..0073103e25 100644
--- a/src/soc/intel/apollolake/chip.h
+++ b/src/soc/intel/apollolake/chip.h
@@ -106,6 +106,10 @@ struct soc_intel_apollolake_config {
uint8_t gpe0_dw2; /* GPE0_95_64 STS/EN */
uint8_t gpe0_dw3; /* GPE0_127_96 STS/EN */
+ /* LPC fixed enables and ranges */
+ uint16_t lpc_iod;
+ uint16_t lpc_ioe;
+
/* Configure LPSS S0ix Enable */
uint8_t lpss_s0ix_enable;