2 * Copyright (C) 2015 Udoo
3 * Author: Tungyi Lin <tungyilin1127@gmail.com>
4 * Richard Hu <hakahu@gmail.com>
5 * Based on board/wandboard/spl.c
6 * SPDX-License-Identifier: GPL-2.0+
9 #include <asm/arch/clock.h>
10 #include <asm/arch/imx-regs.h>
11 #include <asm/arch/iomux.h>
12 #include <asm/arch/mx6-pins.h>
13 #include <linux/errno.h>
15 #include <asm/imx-common/iomux-v3.h>
16 #include <asm/imx-common/video.h>
18 #include <fsl_esdhc.h>
19 #include <asm/arch/crm_regs.h>
21 #include <asm/arch/sys_proto.h>
24 DECLARE_GLOBAL_DATA_PTR
;
26 #if defined(CONFIG_SPL_BUILD)
27 #include <asm/arch/mx6-ddr.h>
34 #define IMX6DQ_DRIVE_STRENGTH 0x30
35 #define IMX6SDL_DRIVE_STRENGTH 0x28
37 /* configure MX6Q/DUAL mmdc DDR io registers */
38 static struct mx6dq_iomux_ddr_regs mx6dq_ddr_ioregs
= {
39 .dram_sdclk_0
= IMX6DQ_DRIVE_STRENGTH
,
40 .dram_sdclk_1
= IMX6DQ_DRIVE_STRENGTH
,
41 .dram_cas
= IMX6DQ_DRIVE_STRENGTH
,
42 .dram_ras
= IMX6DQ_DRIVE_STRENGTH
,
43 .dram_reset
= IMX6DQ_DRIVE_STRENGTH
,
44 .dram_sdcke0
= IMX6DQ_DRIVE_STRENGTH
,
45 .dram_sdcke1
= IMX6DQ_DRIVE_STRENGTH
,
46 .dram_sdba2
= 0x00000000,
47 .dram_sdodt0
= IMX6DQ_DRIVE_STRENGTH
,
48 .dram_sdodt1
= IMX6DQ_DRIVE_STRENGTH
,
49 .dram_sdqs0
= IMX6DQ_DRIVE_STRENGTH
,
50 .dram_sdqs1
= IMX6DQ_DRIVE_STRENGTH
,
51 .dram_sdqs2
= IMX6DQ_DRIVE_STRENGTH
,
52 .dram_sdqs3
= IMX6DQ_DRIVE_STRENGTH
,
53 .dram_sdqs4
= IMX6DQ_DRIVE_STRENGTH
,
54 .dram_sdqs5
= IMX6DQ_DRIVE_STRENGTH
,
55 .dram_sdqs6
= IMX6DQ_DRIVE_STRENGTH
,
56 .dram_sdqs7
= IMX6DQ_DRIVE_STRENGTH
,
57 .dram_dqm0
= IMX6DQ_DRIVE_STRENGTH
,
58 .dram_dqm1
= IMX6DQ_DRIVE_STRENGTH
,
59 .dram_dqm2
= IMX6DQ_DRIVE_STRENGTH
,
60 .dram_dqm3
= IMX6DQ_DRIVE_STRENGTH
,
61 .dram_dqm4
= IMX6DQ_DRIVE_STRENGTH
,
62 .dram_dqm5
= IMX6DQ_DRIVE_STRENGTH
,
63 .dram_dqm6
= IMX6DQ_DRIVE_STRENGTH
,
64 .dram_dqm7
= IMX6DQ_DRIVE_STRENGTH
,
67 /* configure MX6Q/DUAL mmdc GRP io registers */
68 static struct mx6dq_iomux_grp_regs mx6dq_grp_ioregs
= {
69 .grp_ddr_type
= 0x000c0000,
70 .grp_ddrmode_ctl
= 0x00020000,
71 .grp_ddrpke
= 0x00000000,
72 .grp_addds
= IMX6DQ_DRIVE_STRENGTH
,
73 .grp_ctlds
= IMX6DQ_DRIVE_STRENGTH
,
74 .grp_ddrmode
= 0x00020000,
75 .grp_b0ds
= IMX6DQ_DRIVE_STRENGTH
,
76 .grp_b1ds
= IMX6DQ_DRIVE_STRENGTH
,
77 .grp_b2ds
= IMX6DQ_DRIVE_STRENGTH
,
78 .grp_b3ds
= IMX6DQ_DRIVE_STRENGTH
,
79 .grp_b4ds
= IMX6DQ_DRIVE_STRENGTH
,
80 .grp_b5ds
= IMX6DQ_DRIVE_STRENGTH
,
81 .grp_b6ds
= IMX6DQ_DRIVE_STRENGTH
,
82 .grp_b7ds
= IMX6DQ_DRIVE_STRENGTH
,
85 /* configure MX6SOLO/DUALLITE mmdc DDR io registers */
86 struct mx6sdl_iomux_ddr_regs mx6sdl_ddr_ioregs
= {
87 .dram_sdclk_0
= IMX6SDL_DRIVE_STRENGTH
,
88 .dram_sdclk_1
= IMX6SDL_DRIVE_STRENGTH
,
89 .dram_cas
= IMX6SDL_DRIVE_STRENGTH
,
90 .dram_ras
= IMX6SDL_DRIVE_STRENGTH
,
91 .dram_reset
= IMX6SDL_DRIVE_STRENGTH
,
92 .dram_sdcke0
= IMX6SDL_DRIVE_STRENGTH
,
93 .dram_sdcke1
= IMX6SDL_DRIVE_STRENGTH
,
94 .dram_sdba2
= 0x00000000,
95 .dram_sdodt0
= IMX6SDL_DRIVE_STRENGTH
,
96 .dram_sdodt1
= IMX6SDL_DRIVE_STRENGTH
,
97 .dram_sdqs0
= IMX6SDL_DRIVE_STRENGTH
,
98 .dram_sdqs1
= IMX6SDL_DRIVE_STRENGTH
,
99 .dram_sdqs2
= IMX6SDL_DRIVE_STRENGTH
,
100 .dram_sdqs3
= IMX6SDL_DRIVE_STRENGTH
,
101 .dram_sdqs4
= IMX6SDL_DRIVE_STRENGTH
,
102 .dram_sdqs5
= IMX6SDL_DRIVE_STRENGTH
,
103 .dram_sdqs6
= IMX6SDL_DRIVE_STRENGTH
,
104 .dram_sdqs7
= IMX6SDL_DRIVE_STRENGTH
,
105 .dram_dqm0
= IMX6SDL_DRIVE_STRENGTH
,
106 .dram_dqm1
= IMX6SDL_DRIVE_STRENGTH
,
107 .dram_dqm2
= IMX6SDL_DRIVE_STRENGTH
,
108 .dram_dqm3
= IMX6SDL_DRIVE_STRENGTH
,
109 .dram_dqm4
= IMX6SDL_DRIVE_STRENGTH
,
110 .dram_dqm5
= IMX6SDL_DRIVE_STRENGTH
,
111 .dram_dqm6
= IMX6SDL_DRIVE_STRENGTH
,
112 .dram_dqm7
= IMX6SDL_DRIVE_STRENGTH
,
115 /* configure MX6SOLO/DUALLITE mmdc GRP io registers */
116 struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs
= {
117 .grp_ddr_type
= 0x000c0000,
118 .grp_ddrmode_ctl
= 0x00020000,
119 .grp_ddrpke
= 0x00000000,
120 .grp_addds
= IMX6SDL_DRIVE_STRENGTH
,
121 .grp_ctlds
= IMX6SDL_DRIVE_STRENGTH
,
122 .grp_ddrmode
= 0x00020000,
123 .grp_b0ds
= IMX6SDL_DRIVE_STRENGTH
,
124 .grp_b1ds
= IMX6SDL_DRIVE_STRENGTH
,
125 .grp_b2ds
= IMX6SDL_DRIVE_STRENGTH
,
126 .grp_b3ds
= IMX6SDL_DRIVE_STRENGTH
,
127 .grp_b4ds
= IMX6SDL_DRIVE_STRENGTH
,
128 .grp_b5ds
= IMX6SDL_DRIVE_STRENGTH
,
129 .grp_b6ds
= IMX6SDL_DRIVE_STRENGTH
,
130 .grp_b7ds
= IMX6SDL_DRIVE_STRENGTH
,
133 /* MT41K128M16JT-125 */
134 static struct mx6_ddr3_cfg mt41k128m16jt_125
= {
135 /* quad = 1066, duallite = 800 */
149 static struct mx6_mmdc_calibration mx6q_1g_mmdc_calib
= {
150 .p0_mpwldectrl0
= 0x00350035,
151 .p0_mpwldectrl1
= 0x001F001F,
152 .p1_mpwldectrl0
= 0x00010001,
153 .p1_mpwldectrl1
= 0x00010001,
154 .p0_mpdgctrl0
= 0x43510360,
155 .p0_mpdgctrl1
= 0x0342033F,
156 .p1_mpdgctrl0
= 0x033F033F,
157 .p1_mpdgctrl1
= 0x03290266,
158 .p0_mprddlctl
= 0x4B3E4141,
159 .p1_mprddlctl
= 0x47413B4A,
160 .p0_mpwrdlctl
= 0x42404843,
161 .p1_mpwrdlctl
= 0x4C3F4C45,
164 static struct mx6_mmdc_calibration mx6dl_1g_mmdc_calib
= {
165 .p0_mpwldectrl0
= 0x002F0038,
166 .p0_mpwldectrl1
= 0x001F001F,
167 .p1_mpwldectrl0
= 0x001F001F,
168 .p1_mpwldectrl1
= 0x001F001F,
169 .p0_mpdgctrl0
= 0x425C0251,
170 .p0_mpdgctrl1
= 0x021B021E,
171 .p1_mpdgctrl0
= 0x021B021E,
172 .p1_mpdgctrl1
= 0x01730200,
173 .p0_mprddlctl
= 0x45474C45,
174 .p1_mprddlctl
= 0x44464744,
175 .p0_mpwrdlctl
= 0x3F3F3336,
176 .p1_mpwrdlctl
= 0x32383630,
180 static struct mx6_ddr_sysinfo mem_qdl
= {
183 /* config for full 4GB range so that get_mem_size() works */
187 /* quad = 2, duallite = 1 */
189 /* quad = 2, duallite = 1 */
196 .refsel
= 1, /* Refresh cycles at 32KHz */
197 .refr
= 7, /* 8 refresh commands per refresh cycle */
200 static void ccgr_init(void)
202 struct mxc_ccm_reg
*ccm
= (struct mxc_ccm_reg
*)CCM_BASE_ADDR
;
204 /* set the default clock gate to save power */
205 writel(0x00C03F3F, &ccm
->CCGR0
);
206 writel(0x0030FC03, &ccm
->CCGR1
);
207 writel(0x0FFFC000, &ccm
->CCGR2
);
208 writel(0x3FF00000, &ccm
->CCGR3
);
209 writel(0x00FFF300, &ccm
->CCGR4
);
210 writel(0x0F0000C3, &ccm
->CCGR5
);
211 writel(0x000003FF, &ccm
->CCGR6
);
214 static void gpr_init(void)
216 struct iomuxc
*iomux
= (struct iomuxc
*)IOMUXC_BASE_ADDR
;
218 /* enable AXI cache for VDOA/VPU/IPU */
219 writel(0xF00000FF, &iomux
->gpr
[4]);
220 /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
221 writel(0x007F007F, &iomux
->gpr
[6]);
222 writel(0x007F007F, &iomux
->gpr
[7]);
225 static void spl_dram_init(void)
227 if (is_cpu_type(MXC_CPU_MX6DL
)) {
228 mt41k128m16jt_125
.mem_speed
= 800;
232 mx6sdl_dram_iocfg(64, &mx6sdl_ddr_ioregs
, &mx6sdl_grp_ioregs
);
233 mx6_dram_cfg(&mem_qdl
, &mx6dl_1g_mmdc_calib
, &mt41k128m16jt_125
);
234 } else if (is_cpu_type(MXC_CPU_MX6Q
)) {
235 mt41k128m16jt_125
.mem_speed
= 1066;
239 mx6dq_dram_iocfg(64, &mx6dq_ddr_ioregs
, &mx6dq_grp_ioregs
);
240 mx6_dram_cfg(&mem_qdl
, &mx6q_1g_mmdc_calib
, &mt41k128m16jt_125
);
246 void board_init_f(ulong dummy
)
250 /* setup AIPS and disable watchdog */
256 board_early_init_f();
261 /* UART clocks enabled and gd valid - init serial console */
262 preloader_console_init();
264 /* DDR initialization */
268 memset(__bss_start
, 0, __bss_end
- __bss_start
);
270 /* load/boot image from boot device */
271 board_init_r(NULL
, 0);