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 void board_return_to_bootrom(void)
24 back_to_bootrom(BROM_BOOT_NEXTSTAGE);
27 static const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
28 [BROM_BOOTSOURCE_EMMC] = "/sdhci@fe330000",
29 [BROM_BOOTSOURCE_SPINOR] = "/spi@ff1d0000",
30 [BROM_BOOTSOURCE_SD] = "/dwmmc@fe320000",
33 const char *board_spl_was_booted_from(void)
35 u32 bootdevice_brom_id = readl(RK3399_BROM_BOOTSOURCE_ID_ADDR);
36 const char *bootdevice_ofpath = NULL;
38 if (bootdevice_brom_id < ARRAY_SIZE(boot_devices))
39 bootdevice_ofpath = boot_devices[bootdevice_brom_id];
41 if (bootdevice_ofpath)
42 debug("%s: brom_bootdevice_id %x maps to '%s'\n",
43 __func__, bootdevice_brom_id, bootdevice_ofpath);
45 debug("%s: failed to resolve brom_bootdevice_id %x\n",
46 __func__, bootdevice_brom_id);
48 return bootdevice_ofpath;
51 u32 spl_boot_device(void)
53 u32 boot_device = BOOT_DEVICE_MMC1;
55 if (CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM))
56 return BOOT_DEVICE_BOOTROM;
61 #define TIMER_CHN10_BASE 0xff8680a0
62 #define TIMER_END_COUNT_L 0x00
63 #define TIMER_END_COUNT_H 0x04
64 #define TIMER_INIT_COUNT_L 0x10
65 #define TIMER_INIT_COUNT_H 0x14
66 #define TIMER_CONTROL_REG 0x1c
69 #define TIMER_FMODE (0 << 1)
70 #define TIMER_RMODE (1 << 1)
72 void secure_timer_init(void)
74 writel(0xffffffff, TIMER_CHN10_BASE + TIMER_END_COUNT_L);
75 writel(0xffffffff, TIMER_CHN10_BASE + TIMER_END_COUNT_H);
76 writel(0, TIMER_CHN10_BASE + TIMER_INIT_COUNT_L);
77 writel(0, TIMER_CHN10_BASE + TIMER_INIT_COUNT_H);
78 writel(TIMER_EN | TIMER_FMODE, TIMER_CHN10_BASE + TIMER_CONTROL_REG);
81 void board_debug_uart_init(void)
83 #define GRF_BASE 0xff770000
84 struct rk3399_grf_regs * const grf = (void *)GRF_BASE;
86 #if defined(CONFIG_DEBUG_UART_BASE) && (CONFIG_DEBUG_UART_BASE == 0xff180000)
87 /* Enable early UART0 on the RK3399 */
88 rk_clrsetreg(&grf->gpio2c_iomux,
90 GRF_UART0BT_SIN << GRF_GPIO2C0_SEL_SHIFT);
91 rk_clrsetreg(&grf->gpio2c_iomux,
93 GRF_UART0BT_SOUT << GRF_GPIO2C1_SEL_SHIFT);
95 /* Enable early UART2 channel C on the RK3399 */
96 rk_clrsetreg(&grf->gpio4c_iomux,
98 GRF_UART2DGBC_SIN << GRF_GPIO4C3_SEL_SHIFT);
99 rk_clrsetreg(&grf->gpio4c_iomux,
100 GRF_GPIO4C4_SEL_MASK,
101 GRF_UART2DBGC_SOUT << GRF_GPIO4C4_SEL_SHIFT);
102 /* Set channel C as UART2 input */
103 rk_clrsetreg(&grf->soc_con7,
104 GRF_UART_DBG_SEL_MASK,
105 GRF_UART_DBG_SEL_C << GRF_UART_DBG_SEL_SHIFT);
109 void board_init_f(ulong dummy)
111 struct udevice *pinctrl;
113 struct rk3399_pmusgrf_regs *sgrf;
114 struct rk3399_grf_regs *grf;
120 * Debug UART can be used from here if required:
125 * printascii("string");
128 printascii("U-Boot SPL board init");
131 ret = spl_early_init();
133 debug("spl_early_init() failed: %d\n", ret);
138 * Disable DDR and SRAM security regions.
140 * As we are entered from the BootROM, the region from
141 * 0x0 through 0xfffff (i.e. the first MB of memory) will
142 * be protected. This will cause issues with the DW_MMC
143 * driver, which tries to DMA from/to the stack (likely)
144 * located in this range.
146 sgrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUSGRF);
147 rk_clrsetreg(&sgrf->ddr_rgn_con[16], 0x1ff, 0);
148 rk_clrreg(&sgrf->slv_secure_con4, 0x2000);
150 /* eMMC clock generator: disable the clock multipilier */
151 grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
152 rk_clrreg(&grf->emmccore_con[11], 0x0ff);
156 ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
158 debug("Pinctrl init failed: %d\n", ret);
162 ret = uclass_get_device(UCLASS_RAM, 0, &dev);
164 debug("DRAM init failed: %d\n", ret);
169 #ifdef CONFIG_SPL_LOAD_FIT
170 int board_fit_config_name_match(const char *name)
172 /* Just empty function now - can't decide what to choose */
173 debug("%s: %s\n", __func__, name);