board: venice: add FSA support

The Gateworks Flexible Socket Adapters adapt common
busses such as SDIO/UART/USB/PCI to various connectors
such as M.2 B-Key, M.2 E-Key, M.2 M-Key, and MiniPCIe.

Each FSA has an EEPROM onboard describing its details as well as an
optional port-expander for configurable GPIO's.

Add support for identifying the FSA's and configuring their
details such as user description and GPIO's:
 - enable pca953x, pca954x and eeprom support for communicating
   with the I2C eeprom and gpio port expander on the FSA
 - add FSA detection support
 - add FSA gpio configuration support

Each FSA is identified in the device-tree by an alias to it's I2C
bus where an eeprom@54 node must exist as well as an gpio@20 node
for an io-expander. These nodes must be enabled so that
they can be probed to determine if they are actually present in
the system. If not present or not enabled the gpio expander can
not be used. This also requires livetree as the gpio expander
node if not present must be disabled.

Signed-off-by: Tim Harvey <[email protected]>
Reviewed-by: Peng Fan <[email protected]>

3 files changed, 15 insertions, 0 deletions

diff --git a/configs/imx8mm_venice_defconfig b/configs/imx8mm_venice_defconfig
index 0f263a3ecb8..cc7dfcb1400 100644
--- a/configs/imx8mm_venice_defconfig
+++ b/configs/imx8mm_venice_defconfig
@@ -86,6 +86,7 @@ CONFIG_CMD_EXT4_WRITE=y
 # CONFIG_SPL_EFI_PARTITION is not set
 CONFIG_OF_CONTROL=y
 CONFIG_SPL_OF_CONTROL=y
+CONFIG_OF_LIVE=y
 CONFIG_OF_LIST="freescale/imx8mm-venice-gw71xx-0x freescale/imx8mm-venice-gw72xx-0x freescale/imx8mm-venice-gw73xx-0x freescale/imx8mm-venice-gw7901 freescale/imx8mm-venice-gw7902 freescale/imx8mm-venice-gw7903 freescale/imx8mm-venice-gw7904 freescale/imx8mm-venice-gw75xx-0x"
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
@@ -106,10 +107,14 @@ CONFIG_CLK_IMX8MM=y
 CONFIG_GPIO_HOG=y
 CONFIG_DM_GPIO_LOOKUP_LABEL=y
 CONFIG_MXC_GPIO=y
+CONFIG_DM_PCA953X=y
 CONFIG_DM_I2C=y
+CONFIG_I2C_MUX=y
+CONFIG_I2C_MUX_PCA954x=y
 CONFIG_LED=y
 CONFIG_LED_BLINK=y
 CONFIG_LED_GPIO=y
+CONFIG_I2C_EEPROM=y
 CONFIG_SUPPORT_EMMC_BOOT=y
 CONFIG_MMC_IO_VOLTAGE=y
 CONFIG_SPL_MMC_IO_VOLTAGE=y
diff --git a/configs/imx8mn_venice_defconfig b/configs/imx8mn_venice_defconfig
index 4fc8e146b06..a7a838b61bb 100644
--- a/configs/imx8mn_venice_defconfig
+++ b/configs/imx8mn_venice_defconfig
@@ -86,6 +86,7 @@ CONFIG_CMD_EXT4_WRITE=y
 # CONFIG_SPL_EFI_PARTITION is not set
 CONFIG_OF_CONTROL=y
 CONFIG_SPL_OF_CONTROL=y
+CONFIG_OF_LIVE=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
 CONFIG_SYS_MMC_ENV_DEV=2
@@ -103,10 +104,14 @@ CONFIG_CLK_IMX8MN=y
 CONFIG_GPIO_HOG=y
 CONFIG_DM_GPIO_LOOKUP_LABEL=y
 CONFIG_MXC_GPIO=y
+CONFIG_DM_PCA953X=y
 CONFIG_DM_I2C=y
+CONFIG_I2C_MUX=y
+CONFIG_I2C_MUX_PCA954x=y
 CONFIG_LED=y
 CONFIG_LED_BLINK=y
 CONFIG_LED_GPIO=y
+CONFIG_I2C_EEPROM=y
 CONFIG_SUPPORT_EMMC_BOOT=y
 CONFIG_MMC_IO_VOLTAGE=y
 CONFIG_SPL_MMC_IO_VOLTAGE=y
diff --git a/configs/imx8mp_venice_defconfig b/configs/imx8mp_venice_defconfig
index 10eac0a0c78..2e4cacf166d 100644
--- a/configs/imx8mp_venice_defconfig
+++ b/configs/imx8mp_venice_defconfig
@@ -88,6 +88,7 @@ CONFIG_CMD_EXT4_WRITE=y
 # CONFIG_SPL_EFI_PARTITION is not set
 CONFIG_OF_CONTROL=y
 CONFIG_SPL_OF_CONTROL=y
+CONFIG_OF_LIVE=y
 CONFIG_OF_LIST="freescale/imx8mp-venice-gw71xx-2x freescale/imx8mp-venice-gw72xx-2x freescale/imx8mp-venice-gw73xx-2x freescale/imx8mp-venice-gw74xx freescale/imx8mp-venice-gw75xx-2x freescale/imx8mp-venice-gw82xx-2x"
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
@@ -104,10 +105,14 @@ CONFIG_CLK_IMX8MP=y
 CONFIG_GPIO_HOG=y
 CONFIG_DM_GPIO_LOOKUP_LABEL=y
 CONFIG_MXC_GPIO=y
+CONFIG_DM_PCA953X=y
 CONFIG_DM_I2C=y
+CONFIG_I2C_MUX=y
+CONFIG_I2C_MUX_PCA954x=y
 CONFIG_LED=y
 CONFIG_LED_BLINK=y
 CONFIG_LED_GPIO=y
+CONFIG_I2C_EEPROM=y
 CONFIG_SUPPORT_EMMC_BOOT=y
 CONFIG_MMC_IO_VOLTAGE=y
 CONFIG_MMC_UHS_SUPPORT=y