1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2017 Rockchip Electronics Co., Ltd.
4  */
5 #include <common.h>
6 #include <clk.h>
7 #include <dm.h>
8 #include <ram.h>
9 #include <syscon.h>
10 #include <asm/io.h>
11 #include <asm/arch/clock.h>
12 #include <asm/arch/periph.h>
13 #include <asm/arch/grf_rk322x.h>
14 #include <asm/arch/boot_mode.h>
15 
16 DECLARE_GLOBAL_DATA_PTR;
17 
18 __weak int rk_board_late_init(void)
19 {
20 	return 0;
21 }
22 
23 int board_late_init(void)
24 {
25 	setup_boot_mode();
26 
27 	return rk_board_late_init();
28 }
29 
30 int board_init(void)
31 {
32 #include <asm/arch/grf_rk322x.h>
33 	/* Enable early UART2 channel 1 on the RK322x */
34 #define GRF_BASE	0x11000000
35 	struct rk322x_grf * const grf = (void *)GRF_BASE;
36 	enum {
37 		GPIO1B2_SHIFT		= 4,
38 		GPIO1B2_MASK		= 3 << GPIO1B2_SHIFT,
39 		GPIO1B2_GPIO		= 0,
40 		GPIO1B2_UART21_SIN,
41 
42 		GPIO1B1_SHIFT		= 2,
43 		GPIO1B1_MASK		= 3 << GPIO1B1_SHIFT,
44 		GPIO1B1_GPIO            = 0,
45 		GPIO1B1_UART1_SOUT,
46 		GPIO1B1_UART21_SOUT,
47 	};
48 	enum {
49 		CON_IOMUX_UART2SEL_SHIFT= 8,
50 		CON_IOMUX_UART2SEL_MASK	= 1 << CON_IOMUX_UART2SEL_SHIFT,
51 		CON_IOMUX_UART2SEL_2	= 0,
52 		CON_IOMUX_UART2SEL_21,
53 	};
54 
55 	rk_clrsetreg(&grf->gpio1b_iomux,
56 		     GPIO1B1_MASK | GPIO1B2_MASK,
57 		     GPIO1B2_UART21_SIN << GPIO1B2_SHIFT |
58 		     GPIO1B1_UART21_SOUT << GPIO1B1_SHIFT);
59 	/* Set channel C as UART2 input */
60 	rk_clrsetreg(&grf->con_iomux,
61 		     CON_IOMUX_UART2SEL_MASK,
62 		     CON_IOMUX_UART2SEL_21 << CON_IOMUX_UART2SEL_SHIFT);
63 
64 	/*
65 	* The integrated macphy is enabled by default, disable it
66 	* for saving power consuming.
67 	*/
68 	rk_clrsetreg(&grf->macphy_con[0],
69 		     MACPHY_CFG_ENABLE_MASK,
70 		     0 << MACPHY_CFG_ENABLE_SHIFT);
71 
72 	return 0;
73 }
74 
75 int dram_init_banksize(void)
76 {
77 	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
78 	gd->bd->bi_dram[0].size = 0x8400000;
79 	/* Reserve 0x200000 for OPTEE */
80 	gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE
81 				+ gd->bd->bi_dram[0].size + 0x200000;
82 	gd->bd->bi_dram[1].size = gd->bd->bi_dram[0].start
83 				+ gd->ram_size - gd->bd->bi_dram[1].start;
84 
85 	return 0;
86 }
87 
88 #ifndef CONFIG_SYS_DCACHE_OFF
89 void enable_caches(void)
90 {
91 	/* Enable D-cache. I-cache is already enabled in start.S */
92 	dcache_enable();
93 }
94 #endif
95 
96 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
97 #include <usb.h>
98 #include <usb/dwc2_udc.h>
99 
100 static struct dwc2_plat_otg_data rk322x_otg_data = {
101 	.rx_fifo_sz	= 512,
102 	.np_tx_fifo_sz	= 16,
103 	.tx_fifo_sz	= 128,
104 };
105 
106 int board_usb_init(int index, enum usb_init_type init)
107 {
108 	int node;
109 	const char *mode;
110 	bool matched = false;
111 	const void *blob = gd->fdt_blob;
112 
113 	/* find the usb_otg node */
114 	node = fdt_node_offset_by_compatible(blob, -1,
115 					"rockchip,rk3288-usb");
116 
117 	while (node > 0) {
118 		mode = fdt_getprop(blob, node, "dr_mode", NULL);
119 		if (mode && strcmp(mode, "otg") == 0) {
120 			matched = true;
121 			break;
122 		}
123 
124 		node = fdt_node_offset_by_compatible(blob, node,
125 					"rockchip,rk3288-usb");
126 	}
127 	if (!matched) {
128 		debug("Not found usb_otg device\n");
129 		return -ENODEV;
130 	}
131 	rk322x_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");
132 
133 	return dwc2_udc_probe(&rk322x_otg_data);
134 }
135 
136 int board_usb_cleanup(int index, enum usb_init_type init)
137 {
138 	return 0;
139 }
140 #endif
141 
142 #if defined(CONFIG_USB_FUNCTION_FASTBOOT)
143 int fb_set_reboot_flag(void)
144 {
145 	struct rk322x_grf *grf;
146 
147 	printf("Setting reboot to fastboot flag ...\n");
148 	grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
149 	/* Set boot mode to fastboot */
150 	writel(BOOT_FASTBOOT, &grf->os_reg[0]);
151 
152 	return 0;
153 }
154 #endif
155