diff options
| -rw-r--r-- | arch/arm/cpu/armv8/zynqmp/spl.c | 23 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-zynqmp/hardware.h | 11 |
2 files changed, 33 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv8/zynqmp/spl.c b/arch/arm/cpu/armv8/zynqmp/spl.c index 3ad5de1408..552f577b95 100644 --- a/arch/arm/cpu/armv8/zynqmp/spl.c +++ b/arch/arm/cpu/armv8/zynqmp/spl.c @@ -35,10 +35,33 @@ void board_init_f(ulong dummy) board_init_r(NULL, 0); } +static void ps_mode_reset(ulong mode) +{ + writel(mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_VAL_SHIFT | + mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT, + &crlapb_base->boot_pin_ctrl); + udelay(1); + writel(mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT, + &crlapb_base->boot_pin_ctrl); + udelay(5); + writel(mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_VAL_SHIFT | + mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT, + &crlapb_base->boot_pin_ctrl); +} + +/* + * Set default PS_MODE1 which is used for USB ULPI phy reset + * Also other resets can be connected to this certain pin + */ +#ifndef MODE_RESET +# define MODE_RESET PS_MODE1 +#endif + #ifdef CONFIG_SPL_BOARD_INIT void spl_board_init(void) { preloader_console_init(); + ps_mode_reset(MODE_RESET); board_init(); } #endif diff --git a/arch/arm/include/asm/arch-zynqmp/hardware.h b/arch/arm/include/asm/arch-zynqmp/hardware.h index 10d67d0fb7..456c1b0902 100644 --- a/arch/arm/include/asm/arch-zynqmp/hardware.h +++ b/arch/arm/include/asm/arch-zynqmp/hardware.h @@ -25,6 +25,13 @@ #define ZYNQMP_CRL_APB_BASEADDR 0xFF5E0000 #define ZYNQMP_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT 0x1000000 +#define ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT 0 +#define ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_VAL_SHIFT 8 + +#define PS_MODE0 BIT(0) +#define PS_MODE1 BIT(1) +#define PS_MODE2 BIT(2) +#define PS_MODE3 BIT(3) struct crlapb_regs { u32 reserved0[36]; @@ -35,7 +42,9 @@ struct crlapb_regs { u32 boot_mode; /* 0x200 */ u32 reserved3[14]; u32 rst_lpd_top; /* 0x23C */ - u32 reserved4[26]; + u32 reserved4[4]; + u32 boot_pin_ctrl; /* 0x250 */ + u32 reserved5[21]; }; #define crlapb_base ((struct crlapb_regs *)ZYNQMP_CRL_APB_BASEADDR) |