From bdd921c7720d372399ab57796eb9dcba48530249 Mon Sep 17 00:00:00 2001 From: Alexandru Gagniuc Date: Thu, 28 Apr 2016 10:38:05 -0700 Subject: soc/apollolake/lpc_lib: Add utility to configure LPC pads Change-Id: Iaf325863681ad9b8b5d7662a9d267488b8fdf008 Signed-off-by: Alexandru Gagniuc Reviewed-on: https://review.coreboot.org/14587 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- src/soc/intel/apollolake/include/soc/lpc.h | 2 ++ src/soc/intel/apollolake/lpc_lib.c | 16 ++++++++++++++++ 2 files changed, 18 insertions(+) (limited to 'src') diff --git a/src/soc/intel/apollolake/include/soc/lpc.h b/src/soc/intel/apollolake/include/soc/lpc.h index 9a1c397d8e..7e3d74aaf6 100644 --- a/src/soc/intel/apollolake/include/soc/lpc.h +++ b/src/soc/intel/apollolake/include/soc/lpc.h @@ -53,6 +53,8 @@ #define LGMR_EN (1 << 0) #define LGMR_WINDOW_SIZE (64 * KiB) +/* Configure the SOC's LPC pads and mux them to the LPC function. */ +void lpc_configure_pads(void); /* Enable fixed IO ranges to LPC. IOE_* macros can be OR'ed together. */ void lpc_enable_fixed_io_ranges(uint16_t io_enables); /* Open a generic IO window to the LPC bus. Four windows are available. */ diff --git a/src/soc/intel/apollolake/lpc_lib.c b/src/soc/intel/apollolake/lpc_lib.c index 14e052eace..654c83e838 100644 --- a/src/soc/intel/apollolake/lpc_lib.c +++ b/src/soc/intel/apollolake/lpc_lib.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include @@ -44,6 +45,21 @@ static const struct lpc_mmio_range { { 0, 0 } }; +static const struct pad_config lpc_gpios[] = { + PAD_CFG_NF(LPC_AD0, NATIVE, DEEP, NF1), + PAD_CFG_NF(LPC_AD1, NATIVE, DEEP, NF1), + PAD_CFG_NF(LPC_AD2, NATIVE, DEEP, NF1), + PAD_CFG_NF(LPC_AD3, NATIVE, DEEP, NF1), + PAD_CFG_NF(LPC_FRAMEB, NATIVE, DEEP, NF1), + PAD_CFG_NF(LPC_CLKOUT0, UP_20K, DEEP, NF1), + PAD_CFG_NF(LPC_CLKOUT1, UP_20K, DEEP, NF1) +}; + +void lpc_configure_pads(void) +{ + gpio_configure_pads(lpc_gpios, ARRAY_SIZE(lpc_gpios)); +} + void lpc_enable_fixed_io_ranges(uint16_t io_enables) { uint16_t reg_io_enables; -- cgit v1.2.3