2 * (C) Copyright 2016 Rockchip Electronics Co., Ltd
3 * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
5 * SPDX-License-Identifier: GPL-2.0+
9 #include <asm/arch/bootrom.h>
10 #include <asm/arch/clock.h>
11 #include <asm/arch/grf_rk3399.h>
12 #include <asm/arch/hardware.h>
13 #include <asm/arch/periph.h>
15 #include <debug_uart.h>
17 #include <dm/pinctrl.h>
22 DECLARE_GLOBAL_DATA_PTR;
24 void board_return_to_bootrom(void)
29 static const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
30 [BROM_BOOTSOURCE_EMMC] = "/sdhci@fe330000",
31 [BROM_BOOTSOURCE_SPINOR] = "/spi@ff1d0000",
32 [BROM_BOOTSOURCE_SD] = "/dwmmc@fe320000",
35 const char *board_spl_was_booted_from(void)
37 u32 bootdevice_brom_id = readl(RK3399_BROM_BOOTSOURCE_ID_ADDR);
38 const char *bootdevice_ofpath = NULL;
40 if (bootdevice_brom_id < ARRAY_SIZE(boot_devices))
41 bootdevice_ofpath = boot_devices[bootdevice_brom_id];
43 if (bootdevice_ofpath)
44 debug("%s: brom_bootdevice_id %x maps to '%s'\n",
45 __func__, bootdevice_brom_id, bootdevice_ofpath);
47 debug("%s: failed to resolve brom_bootdevice_id %x\n",
48 __func__, bootdevice_brom_id);
50 return bootdevice_ofpath;
53 u32 spl_boot_device(void)
55 u32 boot_device = BOOT_DEVICE_MMC1;
57 if (CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM))
58 return BOOT_DEVICE_BOOTROM;
63 u32 spl_boot_mode(const u32 boot_device)
65 return MMCSD_MODE_RAW;
68 #define TIMER_CHN10_BASE 0xff8680a0
69 #define TIMER_END_COUNT_L 0x00
70 #define TIMER_END_COUNT_H 0x04
71 #define TIMER_INIT_COUNT_L 0x10
72 #define TIMER_INIT_COUNT_H 0x14
73 #define TIMER_CONTROL_REG 0x1c
76 #define TIMER_FMODE (0 << 1)
77 #define TIMER_RMODE (1 << 1)
79 void secure_timer_init(void)
81 writel(0xffffffff, TIMER_CHN10_BASE + TIMER_END_COUNT_L);
82 writel(0xffffffff, TIMER_CHN10_BASE + TIMER_END_COUNT_H);
83 writel(0, TIMER_CHN10_BASE + TIMER_INIT_COUNT_L);
84 writel(0, TIMER_CHN10_BASE + TIMER_INIT_COUNT_H);
85 writel(TIMER_EN | TIMER_FMODE, TIMER_CHN10_BASE + TIMER_CONTROL_REG);
88 void board_debug_uart_init(void)
90 #define GRF_BASE 0xff770000
91 struct rk3399_grf_regs * const grf = (void *)GRF_BASE;
93 #if defined(CONFIG_DEBUG_UART_BASE) && (CONFIG_DEBUG_UART_BASE == 0xff180000)
94 /* Enable early UART0 on the RK3399 */
95 rk_clrsetreg(&grf->gpio2c_iomux,
97 GRF_UART0BT_SIN << GRF_GPIO2C0_SEL_SHIFT);
98 rk_clrsetreg(&grf->gpio2c_iomux,
100 GRF_UART0BT_SOUT << GRF_GPIO2C1_SEL_SHIFT);
102 /* Enable early UART2 channel C on the RK3399 */
103 rk_clrsetreg(&grf->gpio4c_iomux,
104 GRF_GPIO4C3_SEL_MASK,
105 GRF_UART2DGBC_SIN << GRF_GPIO4C3_SEL_SHIFT);
106 rk_clrsetreg(&grf->gpio4c_iomux,
107 GRF_GPIO4C4_SEL_MASK,
108 GRF_UART2DBGC_SOUT << GRF_GPIO4C4_SEL_SHIFT);
109 /* Set channel C as UART2 input */
110 rk_clrsetreg(&grf->soc_con7,
111 GRF_UART_DBG_SEL_MASK,
112 GRF_UART_DBG_SEL_C << GRF_UART_DBG_SEL_SHIFT);
116 void board_init_f(ulong dummy)
118 struct udevice *pinctrl;
120 struct rk3399_pmusgrf_regs *sgrf;
121 struct rk3399_grf_regs *grf;
127 * Debug UART can be used from here if required:
132 * printascii("string");
135 printascii("U-Boot SPL board init");
138 ret = spl_early_init();
140 debug("spl_early_init() failed: %d\n", ret);
145 * Disable DDR and SRAM security regions.
147 * As we are entered from the BootROM, the region from
148 * 0x0 through 0xfffff (i.e. the first MB of memory) will
149 * be protected. This will cause issues with the DW_MMC
150 * driver, which tries to DMA from/to the stack (likely)
151 * located in this range.
153 sgrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUSGRF);
154 rk_clrsetreg(&sgrf->ddr_rgn_con[16], 0x1ff, 0);
155 rk_clrreg(&sgrf->slv_secure_con4, 0x2000);
157 /* eMMC clock generator: disable the clock multipilier */
158 grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
159 rk_clrreg(&grf->emmccore_con[11], 0x0ff);
163 ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
165 debug("Pinctrl init failed: %d\n", ret);
169 ret = uclass_get_device(UCLASS_RAM, 0, &dev);
171 debug("DRAM init failed: %d\n", ret);
176 #ifdef CONFIG_SPL_LOAD_FIT
177 int board_fit_config_name_match(const char *name)
179 /* Just empty function now - can't decide what to choose */
180 debug("%s: %s\n", __func__, name);