On 07/10/2013 06:56 PM, Nishanth Menon wrote: > On 07/10/2013 03:06 PM, Dan Murphy wrote: >> Configure the tca6424 gpio expander >> This allows use of the debug and tri color LEDs. >> >> Signed-off-by: Dan Murphy <[email protected]> >> --- >> board/ti/omap5_uevm/evm.c | 21 +++++++++++++++++++++ >> board/ti/omap5_uevm/mux_data.h | 2 ++ >> include/configs/omap5_uevm.h | 5 +++++ >> 3 files changed, 28 insertions(+) >> >> diff --git a/board/ti/omap5_uevm/evm.c b/board/ti/omap5_uevm/evm.c >> index 90046e8..0e9a559 100644 >> --- a/board/ti/omap5_uevm/evm.c >> +++ b/board/ti/omap5_uevm/evm.c >> @@ -26,6 +26,7 @@ >> #include <palmas.h> >> #include <asm/arch/sys_proto.h> >> #include <asm/arch/mmc_host_def.h> >> +#include <tca642x.h> >> >> #include "mux_data.h" >> >> @@ -35,6 +36,24 @@ const struct omap_sysinfo sysinfo = { >> "Board: OMAP5430 EVM\n" >> }; >> >> +/* @brief tca642x_init - Initial states for the GPIO expander > documentation style? > /* > * @brief > ? >> + * input reg, output reg, polarity reg, configuration reg >> + */ >> +struct tca642x_bank_info tca642x_init[] = { >> + { .input_reg = 0x00, >> + .output_reg = 0x04, >> + .polarity_reg = 0x00, >> + .configuration_reg = 0x80 }, >> + { .input_reg = 0x00, >> + .output_reg = 0x00, >> + .polarity_reg = 0x00, >> + .configuration_reg = 0xff }, >> + { .input_reg = 0x00, >> + .output_reg = 0x00, >> + .polarity_reg = 0x00, >> + .configuration_reg = 0x40 }, >> +}; >> + >> /** >> * @brief board_init >> * >> @@ -46,6 +65,8 @@ int board_init(void) >> gd->bd->bi_arch_number = MACH_TYPE_OMAP5_SEVM; >> gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */ >> >> + tca642x_set_inital_state(CONFIG_SYS_I2C_TCA642X_ADDR, tca642x_init); >> + >> return 0; >> } >> >> diff --git a/board/ti/omap5_uevm/mux_data.h b/board/ti/omap5_uevm/mux_data.h >> index a82795d..7e6415e 100644 >> --- a/board/ti/omap5_uevm/mux_data.h >> +++ b/board/ti/omap5_uevm/mux_data.h >> @@ -56,6 +56,8 @@ const struct pad_conf_entry core_padconf_array_essential[] >> = { >> {USBD0_HS_DP, (IEN | M0)}, /* USBD0_HS_DP */ >> {USBD0_HS_DM, (IEN | M0)}, /* USBD0_HS_DM */ >> {USBD0_SS_RX, (IEN | M0)}, /* USBD0_SS_RX */ >> + {I2C5_SCL, (IEN | M0)}, /* I2C5_SCL */ > nit pick -> SCL (or i2c clk) is out put from master - always. IEN enables > full duplex, but anyways.. just a nitpick :) > OK I changed this and did a test and reads fail without the IEN set. This is to sync the client clocks. >> + {I2C5_SDA, (IEN | M0)}, /* I2C5_SDA */ >> >> }; >> >> diff --git a/include/configs/omap5_uevm.h b/include/configs/omap5_uevm.h >> index 46dacc2..bee1278 100644 >> --- a/include/configs/omap5_uevm.h >> +++ b/include/configs/omap5_uevm.h >> @@ -53,6 +53,11 @@ >> #define CONFIG_PARTITION_UUIDS >> #define CONFIG_CMD_PART >> >> +#define CONFIG_TCA642X >> +#define CONFIG_CMD_TCA642X >> +#define CONFIG_SYS_I2C_TCA642X_BUS_NUM 4 >> +#define CONFIG_SYS_I2C_TCA642X_ADDR 0x22 >> + >> #define CONFIG_SYS_PROMPT "OMAP5432 uEVM # " >> >> #define CONSOLEDEV "ttyO2" >> > > Else, > no further comments from me. > -- > Regards, > Nishanth Menon
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