From 7ead6d662a2f9d8498af6650ea38418c64b52048 Mon Sep 17 00:00:00 2001 From: Vincent Chen Date: Mon, 24 Jan 2022 02:42:02 -0800 Subject: [PATCH 3/8] board: sifive: Set LED's color to purple in the U-boot stage Set LED's color to purple in the U-boot stage. Because there are still some functions to be executed before board_early_init_f(), it means the LED's is not changed to purple instantly when entering the U-boot stage. --- board/sifive/unmatched/pwm.c | 7 +++++++ board/sifive/unmatched/unmatched.c | 6 ++++++ configs/sifive_unmatched_defconfig | 1 + 3 files changed, 14 insertions(+) --- a/board/sifive/unmatched/pwm.c +++ b/board/sifive/unmatched/pwm.c @@ -36,6 +36,7 @@ void pwm_device_init(void) struct pwm_sifive_regs *pwm0, *pwm1; pwm0 = (struct pwm_sifive_regs *)PWM0_BASE; pwm1 = (struct pwm_sifive_regs *)PWM1_BASE; +#ifdef CONFIG_SPL_BUILD writel(PWM_CMP_DISABLE_VAL, (void *)&pwm0->cmp0); /* Set the 3-color PWM LEDs to yellow in SPL */ writel(PWM_CMP_ENABLE_VAL, (void *)&pwm0->cmp1); @@ -54,4 +55,10 @@ void pwm_device_init(void) writel(PWM_CMP_ENABLE_VAL, (void *)&pwm1->cmp2); writel(PWM_CMP_ENABLE_VAL, (void *)&pwm1->cmp3); writel(PWM_CFG_INIT, (void *)&pwm1->cfg); +#else + /* Set the 3-color PWM LEDs to purple in U-boot */ + writel(PWM_CMP_DISABLE_VAL, (void *)&pwm0->cmp1); + writel(PWM_CMP_ENABLE_VAL, (void *)&pwm0->cmp2); + writel(PWM_CMP_ENABLE_VAL, (void *)&pwm0->cmp3); +#endif } --- a/board/sifive/unmatched/unmatched.c +++ b/board/sifive/unmatched/unmatched.c @@ -22,6 +22,12 @@ void *board_fdt_blob_setup(int *err) return (ulong *)&_end; } +int board_early_init_f(void) +{ + pwm_device_init(); + return 0; +} + int board_init(void) { /* enable all cache ways */ --- a/configs/sifive_unmatched_defconfig +++ b/configs/sifive_unmatched_defconfig @@ -62,3 +62,4 @@ CONFIG_DM_SCSI=y CONFIG_USB=y CONFIG_USB_XHCI_HCD=y CONFIG_USB_XHCI_PCI=y +CONFIG_BOARD_EARLY_INIT_F=y