projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 6a7b52bc WW |
1 | /* |
| 2 | * Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com> | |
| 3 | * | |
| 4 | * SPDX-License-Identifier: GPL-2.0+ | |
| 5 | */ | |
| 6 | ||
| 7 | #include <common.h> | |
| 8 | #include <asm/io.h> | |
| 9 | #include <asm/addrspace.h> | |
| 10 | #include <asm/types.h> | |
| 11 | #include <mach/ar71xx_regs.h> | |
| 12 | #include <mach/ddr.h> | |
| 04583c68 | 13 | #include <mach/ath79.h> |
| 6a7b52bc WW |
14 | #include <debug_uart.h> |
| 15 | ||
| 16 | DECLARE_GLOBAL_DATA_PTR; | |
| 17 | ||
| 18 | #ifdef CONFIG_DEBUG_UART_BOARD_INIT | |
| 19 | void board_debug_uart_init(void) | |
| 20 | { | |
| 21 | void __iomem *regs; | |
| 22 | u32 val; | |
| 23 | ||
| 24 | regs = map_physmem(AR71XX_GPIO_BASE, AR71XX_GPIO_SIZE, | |
| 25 | MAP_NOCACHE); | |
| 26 | ||
| 27 | /* | |
| 28 | * GPIO9 as input, GPIO10 as output | |
| 29 | */ | |
| 30 | val = readl(regs + AR71XX_GPIO_REG_OE); | |
| 31 | val &= ~AR933X_GPIO(9); | |
| 32 | val |= AR933X_GPIO(10); | |
| 33 | writel(val, regs + AR71XX_GPIO_REG_OE); | |
| 34 | ||
| 35 | /* | |
| 36 | * Enable UART, GPIO9 as UART_SI, GPIO10 as UART_SO | |
| 37 | */ | |
| 38 | val = readl(regs + AR71XX_GPIO_REG_FUNC); | |
| 39 | val |= AR933X_GPIO_FUNC_UART_EN | AR933X_GPIO_FUNC_RES_TRUE; | |
| 40 | writel(val, regs + AR71XX_GPIO_REG_FUNC); | |
| 41 | } | |
| 42 | #endif | |
| 43 | ||
| 44 | int board_early_init_f(void) | |
| 45 | { | |
| 46 | #ifdef CONFIG_DEBUG_UART | |
| 47 | debug_uart_init(); | |
| 48 | #endif | |
| 49 | ddr_init(); | |
| 04583c68 | 50 | ath79_eth_reset(); |
| 6a7b52bc WW |
51 | return 0; |
| 52 | } |