Do the basic configuration required for enabling the 32k crystal. If external 32k source is not used, 32k rc-osc comes into play, which is accurate to +-20%.
Signed-off-by: Vishal Mahaveer <[email protected]> --- board/ti/am62x/evm.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/board/ti/am62x/evm.c b/board/ti/am62x/evm.c index e9eba57eba7..7a820cc8c07 100644 --- a/board/ti/am62x/evm.c +++ b/board/ti/am62x/evm.c @@ -137,13 +137,26 @@ int board_late_init(void) #endif #if defined(CONFIG_XPL_BUILD) +#if IS_ENABLED(CONFIG_SPL_BOARD_INIT) void spl_board_init(void) { + u32 val; + + /* We have 32k crystal, so lets enable it */ + val = readl(MCU_CTRL_LFXOSC_CTRL); + val &= ~(MCU_CTRL_LFXOSC_32K_DISABLE_VAL); + writel(val, MCU_CTRL_LFXOSC_CTRL); + /* Add any TRIM needed for the crystal here.. */ + /* Make sure to mux up to take the SoC 32k from the crystal */ + writel(MCU_CTRL_DEVICE_CLKOUT_LFOSC_SELECT_VAL, + MCU_CTRL_DEVICE_CLKOUT_32K_CTRL); + enable_caches(); if (IS_ENABLED(CONFIG_SPL_SPLASH_SCREEN) && IS_ENABLED(CONFIG_SPL_BMP)) splash_display(); } +#endif void spl_perform_board_fixups(struct spl_image_info *spl_image) { -- 2.34.1
