package/boot/uboot-sifiveu/patches/0003-board-sifive-Set-LED-s-color-to-purple-in-the-U-boot.patch

   1 From 7ead6d662a2f9d8498af6650ea38418c64b52048 Mon Sep 17 00:00:00 2001
   2 From: Vincent Chen <vincent.chen@sifive.com>
   3 Date: Mon, 24 Jan 2022 02:42:02 -0800
   4 Subject: [PATCH 3/8] board: sifive: Set LED's color to purple in the U-boot
   5  stage
   6
   7 Set LED's color to purple in the U-boot stage. Because there are still
   8 some functions to be executed before board_early_init_f(), it means
   9 the LED's is not changed to purple instantly when entering the U-boot
  10 stage.
  11 ---
  12  board/sifive/unmatched/pwm.c       | 7 +++++++
  13  board/sifive/unmatched/unmatched.c | 6 ++++++
  14  configs/sifive_unmatched_defconfig | 1 +
  15  3 files changed, 14 insertions(+)
  16
  17 diff --git a/board/sifive/unmatched/pwm.c b/board/sifive/unmatched/pwm.c
  18 index e1cc02310a..bd67672c22 100644
  19 --- a/board/sifive/unmatched/pwm.c
  20 +++ b/board/sifive/unmatched/pwm.c
  21 @@ -36,6 +36,7 @@ void pwm_device_init(void)
  22         struct pwm_sifive_regs *pwm0, *pwm1;
  23         pwm0 = (struct pwm_sifive_regs *)PWM0_BASE;
  24         pwm1 = (struct pwm_sifive_regs *)PWM1_BASE;
  25 +#ifdef CONFIG_SPL_BUILD
  26         writel(PWM_CMP_DISABLE_VAL, (void *)&pwm0->cmp0);
  27         /* Set the 3-color PWM LEDs to yellow in SPL */
  28         writel(PWM_CMP_ENABLE_VAL, (void *)&pwm0->cmp1);
  29 @@ -54,4 +55,10 @@ void pwm_device_init(void)
  30         writel(PWM_CMP_ENABLE_VAL, (void *)&pwm1->cmp2);
  31         writel(PWM_CMP_ENABLE_VAL, (void *)&pwm1->cmp3);
  32         writel(PWM_CFG_INIT, (void *)&pwm1->cfg);
  33 +#else
  34 +       /* Set the 3-color PWM LEDs to purple in U-boot */
  35 +       writel(PWM_CMP_DISABLE_VAL, (void *)&pwm0->cmp1);
  36 +       writel(PWM_CMP_ENABLE_VAL, (void *)&pwm0->cmp2);
  37 +       writel(PWM_CMP_ENABLE_VAL, (void *)&pwm0->cmp3);
  38 +#endif
  39  }
  40 diff --git a/board/sifive/unmatched/unmatched.c b/board/sifive/unmatched/unmatched.c
  41 index 6295deeae2..30c082d001 100644
  42 --- a/board/sifive/unmatched/unmatched.c
  43 +++ b/board/sifive/unmatched/unmatched.c
  44 @@ -22,6 +22,12 @@ void *board_fdt_blob_setup(int *err)
  45         return (ulong *)&_end;
  46  }
  47
  48 +int board_early_init_f(void)
  49 +{
  50 +       pwm_device_init();
  51 +       return 0;
  52 +}
  53 +
  54  int board_init(void)
  55  {
  56         /* enable all cache ways */
  57 diff --git a/configs/sifive_unmatched_defconfig b/configs/sifive_unmatched_defconfig
  58 index d400ed0b23..0758f8e90f 100644
  59 --- a/configs/sifive_unmatched_defconfig
  60 +++ b/configs/sifive_unmatched_defconfig
  61 @@ -51,3 +51,4 @@ CONFIG_DM_SCSI=y
  62  CONFIG_USB=y
  63  CONFIG_USB_XHCI_HCD=y
  64  CONFIG_USB_XHCI_PCI=y
  65 +CONFIG_BOARD_EARLY_INIT_F=y
  66 --
  67 2.27.0
  68