xref: /openbmc/u-boot/board/phytec/pcm052/pcm052.c (revision ef64e782)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2013 Freescale Semiconductor, Inc.
4  */
5 
6 #include <common.h>
7 #include <asm/io.h>
8 #include <asm/arch/imx-regs.h>
9 #include <asm/arch/iomux-vf610.h>
10 #include <asm/arch/ddrmc-vf610.h>
11 #include <asm/arch/crm_regs.h>
12 #include <asm/arch/clock.h>
13 #include <mmc.h>
14 #include <fsl_esdhc.h>
15 #include <miiphy.h>
16 #include <netdev.h>
17 #include <i2c.h>
18 
19 DECLARE_GLOBAL_DATA_PTR;
20 
21 /*
22  * Default DDR pad settings in arch/arm/include/asm/arch-vf610/iomux-vf610.h
23  * do not match our settings. Let us (re)define our own settings here.
24  */
25 
26 #define PCM052_VF610_DDR_PAD_CTRL	PAD_CTL_DSE_20ohm
27 #define PCM052_VF610_DDR_PAD_CTRL_1	(PAD_CTL_DSE_20ohm | \
28 					PAD_CTL_INPUT_DIFFERENTIAL)
29 #define PCM052_VF610_DDR_RESET_PAD_CTL	(PAD_CTL_DSE_150ohm | \
30 					PAD_CTL_PUS_100K_UP | \
31 					PAD_CTL_INPUT_DIFFERENTIAL)
32 
33 enum {
34 	PCM052_VF610_PAD_DDR_RESETB			= IOMUX_PAD(0x021c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_RESET_PAD_CTL),
35 	PCM052_VF610_PAD_DDR_A15__DDR_A_15		= IOMUX_PAD(0x0220, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
36 	PCM052_VF610_PAD_DDR_A14__DDR_A_14		= IOMUX_PAD(0x0224, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
37 	PCM052_VF610_PAD_DDR_A13__DDR_A_13		= IOMUX_PAD(0x0228, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
38 	PCM052_VF610_PAD_DDR_A12__DDR_A_12		= IOMUX_PAD(0x022c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
39 	PCM052_VF610_PAD_DDR_A11__DDR_A_11		= IOMUX_PAD(0x0230, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
40 	PCM052_VF610_PAD_DDR_A10__DDR_A_10		= IOMUX_PAD(0x0234, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
41 	PCM052_VF610_PAD_DDR_A9__DDR_A_9		= IOMUX_PAD(0x0238, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
42 	PCM052_VF610_PAD_DDR_A8__DDR_A_8		= IOMUX_PAD(0x023c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
43 	PCM052_VF610_PAD_DDR_A7__DDR_A_7		= IOMUX_PAD(0x0240, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
44 	PCM052_VF610_PAD_DDR_A6__DDR_A_6		= IOMUX_PAD(0x0244, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
45 	PCM052_VF610_PAD_DDR_A5__DDR_A_5		= IOMUX_PAD(0x0248, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
46 	PCM052_VF610_PAD_DDR_A4__DDR_A_4		= IOMUX_PAD(0x024c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
47 	PCM052_VF610_PAD_DDR_A3__DDR_A_3		= IOMUX_PAD(0x0250, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
48 	PCM052_VF610_PAD_DDR_A2__DDR_A_2		= IOMUX_PAD(0x0254, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
49 	PCM052_VF610_PAD_DDR_A1__DDR_A_1		= IOMUX_PAD(0x0258, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
50 	PCM052_VF610_PAD_DDR_A0__DDR_A_0		= IOMUX_PAD(0x025c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
51 	PCM052_VF610_PAD_DDR_BA2__DDR_BA_2		= IOMUX_PAD(0x0260, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
52 	PCM052_VF610_PAD_DDR_BA1__DDR_BA_1		= IOMUX_PAD(0x0264, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
53 	PCM052_VF610_PAD_DDR_BA0__DDR_BA_0		= IOMUX_PAD(0x0268, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
54 	PCM052_VF610_PAD_DDR_CAS__DDR_CAS_B		= IOMUX_PAD(0x026c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
55 	PCM052_VF610_PAD_DDR_CKE__DDR_CKE_0		= IOMUX_PAD(0x0270, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
56 	PCM052_VF610_PAD_DDR_CLK__DDR_CLK_0		= IOMUX_PAD(0x0274, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL_1),
57 	PCM052_VF610_PAD_DDR_CS__DDR_CS_B_0		= IOMUX_PAD(0x0278, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
58 	PCM052_VF610_PAD_DDR_D15__DDR_D_15		= IOMUX_PAD(0x027c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
59 	PCM052_VF610_PAD_DDR_D14__DDR_D_14		= IOMUX_PAD(0x0280, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
60 	PCM052_VF610_PAD_DDR_D13__DDR_D_13		= IOMUX_PAD(0x0284, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
61 	PCM052_VF610_PAD_DDR_D12__DDR_D_12		= IOMUX_PAD(0x0288, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
62 	PCM052_VF610_PAD_DDR_D11__DDR_D_11		= IOMUX_PAD(0x028c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
63 	PCM052_VF610_PAD_DDR_D10__DDR_D_10		= IOMUX_PAD(0x0290, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
64 	PCM052_VF610_PAD_DDR_D9__DDR_D_9		= IOMUX_PAD(0x0294, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
65 	PCM052_VF610_PAD_DDR_D8__DDR_D_8		= IOMUX_PAD(0x0298, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
66 	PCM052_VF610_PAD_DDR_D7__DDR_D_7		= IOMUX_PAD(0x029c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
67 	PCM052_VF610_PAD_DDR_D6__DDR_D_6		= IOMUX_PAD(0x02a0, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
68 	PCM052_VF610_PAD_DDR_D5__DDR_D_5		= IOMUX_PAD(0x02a4, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
69 	PCM052_VF610_PAD_DDR_D4__DDR_D_4		= IOMUX_PAD(0x02a8, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
70 	PCM052_VF610_PAD_DDR_D3__DDR_D_3		= IOMUX_PAD(0x02ac, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
71 	PCM052_VF610_PAD_DDR_D2__DDR_D_2		= IOMUX_PAD(0x02b0, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
72 	PCM052_VF610_PAD_DDR_D1__DDR_D_1		= IOMUX_PAD(0x02b4, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
73 	PCM052_VF610_PAD_DDR_D0__DDR_D_0		= IOMUX_PAD(0x02b8, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
74 	PCM052_VF610_PAD_DDR_DQM1__DDR_DQM_1		= IOMUX_PAD(0x02bc, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
75 	PCM052_VF610_PAD_DDR_DQM0__DDR_DQM_0		= IOMUX_PAD(0x02c0, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
76 	PCM052_VF610_PAD_DDR_DQS1__DDR_DQS_1		= IOMUX_PAD(0x02c4, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL_1),
77 	PCM052_VF610_PAD_DDR_DQS0__DDR_DQS_0		= IOMUX_PAD(0x02c8, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL_1),
78 	PCM052_VF610_PAD_DDR_RAS__DDR_RAS_B		= IOMUX_PAD(0x02cc, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
79 	PCM052_VF610_PAD_DDR_WE__DDR_WE_B		= IOMUX_PAD(0x02d0, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
80 	PCM052_VF610_PAD_DDR_ODT1__DDR_ODT_0		= IOMUX_PAD(0x02d4, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
81 	PCM052_VF610_PAD_DDR_ODT0__DDR_ODT_1		= IOMUX_PAD(0x02d8, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
82 	PCM052_VF610_PAD_DDR_DDRBYTE1__DDR_DDRBYTE1	= IOMUX_PAD(0x02dc, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
83 	PCM052_VF610_PAD_DDR_DDRBYTE0__DDR_DDRBYTE0	= IOMUX_PAD(0x02e0, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
84 };
85 
86 static struct ddrmc_cr_setting pcm052_cr_settings[] = {
87 	/* not in the datasheets, but in the original code */
88 	{ 0x00002000, 105 },
89 	{ 0x00000020, 110 },
90 	/* AXI */
91 	{ DDRMC_CR117_AXI0_W_PRI(1) | DDRMC_CR117_AXI0_R_PRI(1), 117 },
92 	{ DDRMC_CR118_AXI1_W_PRI(1) | DDRMC_CR118_AXI1_R_PRI(1), 118 },
93 	{ DDRMC_CR120_AXI0_PRI1_RPRI(2) |
94 		   DDRMC_CR120_AXI0_PRI0_RPRI(2), 120 },
95 	{ DDRMC_CR121_AXI0_PRI3_RPRI(2) |
96 		   DDRMC_CR121_AXI0_PRI2_RPRI(2), 121 },
97 	{ DDRMC_CR122_AXI1_PRI1_RPRI(1) | DDRMC_CR122_AXI1_PRI0_RPRI(1) |
98 		   DDRMC_CR122_AXI0_PRIRLX(100), 122 },
99 	{ DDRMC_CR123_AXI1_P_ODR_EN | DDRMC_CR123_AXI1_PRI3_RPRI(1) |
100 		   DDRMC_CR123_AXI1_PRI2_RPRI(1), 123 },
101 	{ DDRMC_CR124_AXI1_PRIRLX(100), 124 },
102 	{ DDRMC_CR126_PHY_RDLAT(11), 126 },
103 	{ DDRMC_CR132_WRLAT_ADJ(5) | DDRMC_CR132_RDLAT_ADJ(6), 132 },
104 	{ DDRMC_CR137_PHYCTL_DL(2), 137 },
105 	{ DDRMC_CR139_PHY_WRLV_RESPLAT(4) | DDRMC_CR139_PHY_WRLV_LOAD(7) |
106 		   DDRMC_CR139_PHY_WRLV_DLL(3) |
107 		   DDRMC_CR139_PHY_WRLV_EN(3), 139 },
108 	{ DDRMC_CR154_PAD_ZQ_EARLY_CMP_EN_TIMER(13) |
109 		   DDRMC_CR154_PAD_ZQ_MODE(1) |
110 		   DDRMC_CR154_DDR_SEL_PAD_CONTR(3) |
111 		   DDRMC_CR154_PAD_ZQ_HW_FOR(0), 154 },
112 	{ DDRMC_CR155_PAD_ODT_BYTE1(5) | DDRMC_CR155_PAD_ODT_BYTE0(5), 155 },
113 	{ DDRMC_CR158_TWR(6), 158 },
114 	{ DDRMC_CR161_ODT_EN(0) | DDRMC_CR161_TODTH_RD(0) |
115 		   DDRMC_CR161_TODTH_WR(6), 161 },
116 	/* end marker */
117 	{ 0, -1 }
118 };
119 
120 /* PHY settings -- most of them differ from default in imx-regs.h */
121 
122 #define PCM052_DDRMC_PHY_DQ_TIMING			0x00002213
123 #define PCM052_DDRMC_PHY_CTRL				0x00290000
124 #define PCM052_DDRMC_PHY_SLAVE_CTRL			0x00002c00
125 #define PCM052_DDRMC_PHY_PROC_PAD_ODT			0x00010020
126 
127 static struct ddrmc_phy_setting pcm052_phy_settings[] = {
128 	{ PCM052_DDRMC_PHY_DQ_TIMING,  0 },
129 	{ PCM052_DDRMC_PHY_DQ_TIMING, 16 },
130 	{ PCM052_DDRMC_PHY_DQ_TIMING, 32 },
131 	{ PCM052_DDRMC_PHY_DQ_TIMING, 48 },
132 	{ DDRMC_PHY_DQS_TIMING,  1 },
133 	{ DDRMC_PHY_DQS_TIMING, 17 },
134 	{ DDRMC_PHY_DQS_TIMING, 33 },
135 	{ DDRMC_PHY_DQS_TIMING, 49 },
136 	{ PCM052_DDRMC_PHY_CTRL,  2 },
137 	{ PCM052_DDRMC_PHY_CTRL, 18 },
138 	{ PCM052_DDRMC_PHY_CTRL, 34 },
139 	{ DDRMC_PHY_MASTER_CTRL,  3 },
140 	{ DDRMC_PHY_MASTER_CTRL, 19 },
141 	{ DDRMC_PHY_MASTER_CTRL, 35 },
142 	{ PCM052_DDRMC_PHY_SLAVE_CTRL,  4 },
143 	{ PCM052_DDRMC_PHY_SLAVE_CTRL, 20 },
144 	{ PCM052_DDRMC_PHY_SLAVE_CTRL, 36 },
145 	{ DDRMC_PHY50_DDR3_MODE | DDRMC_PHY50_EN_SW_HALF_CYCLE, 50 },
146 	{ PCM052_DDRMC_PHY_PROC_PAD_ODT, 52 },
147 
148 	/* end marker */
149 	{ 0, -1 }
150 };
151 
152 int dram_init(void)
153 {
154 	static const iomux_v3_cfg_t pcm052_pads[] = {
155 		PCM052_VF610_PAD_DDR_A15__DDR_A_15,
156 		PCM052_VF610_PAD_DDR_A14__DDR_A_14,
157 		PCM052_VF610_PAD_DDR_A13__DDR_A_13,
158 		PCM052_VF610_PAD_DDR_A12__DDR_A_12,
159 		PCM052_VF610_PAD_DDR_A11__DDR_A_11,
160 		PCM052_VF610_PAD_DDR_A10__DDR_A_10,
161 		PCM052_VF610_PAD_DDR_A9__DDR_A_9,
162 		PCM052_VF610_PAD_DDR_A8__DDR_A_8,
163 		PCM052_VF610_PAD_DDR_A7__DDR_A_7,
164 		PCM052_VF610_PAD_DDR_A6__DDR_A_6,
165 		PCM052_VF610_PAD_DDR_A5__DDR_A_5,
166 		PCM052_VF610_PAD_DDR_A4__DDR_A_4,
167 		PCM052_VF610_PAD_DDR_A3__DDR_A_3,
168 		PCM052_VF610_PAD_DDR_A2__DDR_A_2,
169 		PCM052_VF610_PAD_DDR_A1__DDR_A_1,
170 		PCM052_VF610_PAD_DDR_A0__DDR_A_0,
171 		PCM052_VF610_PAD_DDR_BA2__DDR_BA_2,
172 		PCM052_VF610_PAD_DDR_BA1__DDR_BA_1,
173 		PCM052_VF610_PAD_DDR_BA0__DDR_BA_0,
174 		PCM052_VF610_PAD_DDR_CAS__DDR_CAS_B,
175 		PCM052_VF610_PAD_DDR_CKE__DDR_CKE_0,
176 		PCM052_VF610_PAD_DDR_CLK__DDR_CLK_0,
177 		PCM052_VF610_PAD_DDR_CS__DDR_CS_B_0,
178 		PCM052_VF610_PAD_DDR_D15__DDR_D_15,
179 		PCM052_VF610_PAD_DDR_D14__DDR_D_14,
180 		PCM052_VF610_PAD_DDR_D13__DDR_D_13,
181 		PCM052_VF610_PAD_DDR_D12__DDR_D_12,
182 		PCM052_VF610_PAD_DDR_D11__DDR_D_11,
183 		PCM052_VF610_PAD_DDR_D10__DDR_D_10,
184 		PCM052_VF610_PAD_DDR_D9__DDR_D_9,
185 		PCM052_VF610_PAD_DDR_D8__DDR_D_8,
186 		PCM052_VF610_PAD_DDR_D7__DDR_D_7,
187 		PCM052_VF610_PAD_DDR_D6__DDR_D_6,
188 		PCM052_VF610_PAD_DDR_D5__DDR_D_5,
189 		PCM052_VF610_PAD_DDR_D4__DDR_D_4,
190 		PCM052_VF610_PAD_DDR_D3__DDR_D_3,
191 		PCM052_VF610_PAD_DDR_D2__DDR_D_2,
192 		PCM052_VF610_PAD_DDR_D1__DDR_D_1,
193 		PCM052_VF610_PAD_DDR_D0__DDR_D_0,
194 		PCM052_VF610_PAD_DDR_DQM1__DDR_DQM_1,
195 		PCM052_VF610_PAD_DDR_DQM0__DDR_DQM_0,
196 		PCM052_VF610_PAD_DDR_DQS1__DDR_DQS_1,
197 		PCM052_VF610_PAD_DDR_DQS0__DDR_DQS_0,
198 		PCM052_VF610_PAD_DDR_RAS__DDR_RAS_B,
199 		PCM052_VF610_PAD_DDR_WE__DDR_WE_B,
200 		PCM052_VF610_PAD_DDR_ODT1__DDR_ODT_0,
201 		PCM052_VF610_PAD_DDR_ODT0__DDR_ODT_1,
202 		PCM052_VF610_PAD_DDR_DDRBYTE1__DDR_DDRBYTE1,
203 		PCM052_VF610_PAD_DDR_DDRBYTE0__DDR_DDRBYTE0,
204 		PCM052_VF610_PAD_DDR_RESETB,
205 	};
206 
207 #if defined(CONFIG_TARGET_PCM052)
208 
209 	static const struct ddr3_jedec_timings pcm052_ddr_timings = {
210 		.tinit             = 5,
211 		.trst_pwron        = 80000,
212 		.cke_inactive      = 200000,
213 		.wrlat             = 5,
214 		.caslat_lin        = 12,
215 		.trc               = 6,
216 		.trrd              = 4,
217 		.tccd              = 4,
218 		.tbst_int_interval = 4,
219 		.tfaw              = 18,
220 		.trp               = 6,
221 		.twtr              = 4,
222 		.tras_min          = 15,
223 		.tmrd              = 4,
224 		.trtp              = 4,
225 		.tras_max          = 14040,
226 		.tmod              = 12,
227 		.tckesr            = 4,
228 		.tcke              = 3,
229 		.trcd_int          = 6,
230 		.tras_lockout      = 1,
231 		.tdal              = 10,
232 		.bstlen            = 3,
233 		.tdll              = 512,
234 		.trp_ab            = 6,
235 		.tref              = 1542,
236 		.trfc              = 64,
237 		.tref_int          = 5,
238 		.tpdex             = 3,
239 		.txpdll            = 10,
240 		.txsnr             = 68,
241 		.txsr              = 506,
242 		.cksrx             = 5,
243 		.cksre             = 5,
244 		.freq_chg_en       = 1,
245 		.zqcl              = 256,
246 		.zqinit            = 512,
247 		.zqcs              = 64,
248 		.ref_per_zq        = 64,
249 		.zqcs_rotate       = 1,
250 		.aprebit           = 10,
251 		.cmd_age_cnt       = 255,
252 		.age_cnt           = 255,
253 		.q_fullness        = 0,
254 		.odt_rd_mapcs0     = 1,
255 		.odt_wr_mapcs0     = 1,
256 		.wlmrd             = 40,
257 		.wldqsen           = 25,
258 	};
259 
260     const int row_diff = 2;
261 
262 #elif defined(CONFIG_TARGET_BK4R1)
263 
264 	static const struct ddr3_jedec_timings pcm052_ddr_timings = {
265 		.tinit             = 5,
266 		.trst_pwron        = 80000,
267 		.cke_inactive      = 200000,
268 		.wrlat             = 5,
269 		.caslat_lin        = 12,
270 		.trc               = 6,
271 		.trrd              = 4,
272 		.tccd              = 4,
273 		.tbst_int_interval = 0,
274 		.tfaw              = 16,
275 		.trp               = 6,
276 		.twtr              = 4,
277 		.tras_min          = 15,
278 		.tmrd              = 4,
279 		.trtp              = 4,
280 		.tras_max          = 28080,
281 		.tmod              = 12,
282 		.tckesr            = 4,
283 		.tcke              = 3,
284 		.trcd_int          = 6,
285 		.tras_lockout      = 1,
286 		.tdal              = 12,
287 		.bstlen            = 3,
288 		.tdll              = 512,
289 		.trp_ab            = 6,
290 		.tref              = 3120,
291 		.trfc              = 104,
292 		.tref_int          = 0,
293 		.tpdex             = 3,
294 		.txpdll            = 10,
295 		.txsnr             = 108,
296 		.txsr              = 512,
297 		.cksrx             = 5,
298 		.cksre             = 5,
299 		.freq_chg_en       = 1,
300 		.zqcl              = 256,
301 		.zqinit            = 512,
302 		.zqcs              = 64,
303 		.ref_per_zq        = 64,
304 		.zqcs_rotate       = 1,
305 		.aprebit           = 10,
306 		.cmd_age_cnt       = 255,
307 		.age_cnt           = 255,
308 		.q_fullness        = 0,
309 		.odt_rd_mapcs0     = 1,
310 		.odt_wr_mapcs0     = 1,
311 		.wlmrd             = 40,
312 		.wldqsen           = 25,
313 	};
314 
315     const int row_diff = 1;
316 
317 #else /* Unknown PCM052 variant */
318 
319 #error DDR characteristics undefined for this target. Please define them.
320 
321 #endif
322 
323 	imx_iomux_v3_setup_multiple_pads(pcm052_pads, ARRAY_SIZE(pcm052_pads));
324 
325 	ddrmc_ctrl_init_ddr3(&pcm052_ddr_timings, pcm052_cr_settings,
326 			     pcm052_phy_settings, 1, row_diff);
327 
328 	gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
329 
330 	return 0;
331 }
332 
333 static void setup_iomux_uart(void)
334 {
335 	static const iomux_v3_cfg_t uart1_pads[] = {
336 		NEW_PAD_CTRL(VF610_PAD_PTB4__UART1_TX, VF610_UART_PAD_CTRL),
337 		NEW_PAD_CTRL(VF610_PAD_PTB5__UART1_RX, VF610_UART_PAD_CTRL),
338 	};
339 
340 	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
341 }
342 
343 #define ENET_PAD_CTRL	(PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_HIGH | \
344 			PAD_CTL_DSE_50ohm | PAD_CTL_OBE_IBE_ENABLE)
345 
346 static void setup_iomux_enet(void)
347 {
348 	static const iomux_v3_cfg_t enet0_pads[] = {
349 		NEW_PAD_CTRL(VF610_PAD_PTA6__RMII0_CLKIN, ENET_PAD_CTRL),
350 		NEW_PAD_CTRL(VF610_PAD_PTC1__RMII0_MDIO, ENET_PAD_CTRL),
351 		NEW_PAD_CTRL(VF610_PAD_PTC0__RMII0_MDC, ENET_PAD_CTRL),
352 		NEW_PAD_CTRL(VF610_PAD_PTC2__RMII0_CRS_DV, ENET_PAD_CTRL),
353 		NEW_PAD_CTRL(VF610_PAD_PTC3__RMII0_RD1, ENET_PAD_CTRL),
354 		NEW_PAD_CTRL(VF610_PAD_PTC4__RMII0_RD0, ENET_PAD_CTRL),
355 		NEW_PAD_CTRL(VF610_PAD_PTC5__RMII0_RXER, ENET_PAD_CTRL),
356 		NEW_PAD_CTRL(VF610_PAD_PTC6__RMII0_TD1, ENET_PAD_CTRL),
357 		NEW_PAD_CTRL(VF610_PAD_PTC7__RMII0_TD0, ENET_PAD_CTRL),
358 		NEW_PAD_CTRL(VF610_PAD_PTC8__RMII0_TXEN, ENET_PAD_CTRL),
359 	};
360 
361 	imx_iomux_v3_setup_multiple_pads(enet0_pads, ARRAY_SIZE(enet0_pads));
362 }
363 
364 /*
365  * I2C2 is the only I2C used, on pads PTA22/PTA23.
366  */
367 
368 static void setup_iomux_i2c(void)
369 {
370 	static const iomux_v3_cfg_t i2c_pads[] = {
371 		VF610_PAD_PTA22__I2C2_SCL,
372 		VF610_PAD_PTA23__I2C2_SDA,
373 	};
374 
375 	imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads));
376 }
377 
378 #ifdef CONFIG_NAND_VF610_NFC
379 static void setup_iomux_nfc(void)
380 {
381 	static const iomux_v3_cfg_t nfc_pads[] = {
382 		VF610_PAD_PTD31__NF_IO15,
383 		VF610_PAD_PTD30__NF_IO14,
384 		VF610_PAD_PTD29__NF_IO13,
385 		VF610_PAD_PTD28__NF_IO12,
386 		VF610_PAD_PTD27__NF_IO11,
387 		VF610_PAD_PTD26__NF_IO10,
388 		VF610_PAD_PTD25__NF_IO9,
389 		VF610_PAD_PTD24__NF_IO8,
390 		VF610_PAD_PTD23__NF_IO7,
391 		VF610_PAD_PTD22__NF_IO6,
392 		VF610_PAD_PTD21__NF_IO5,
393 		VF610_PAD_PTD20__NF_IO4,
394 		VF610_PAD_PTD19__NF_IO3,
395 		VF610_PAD_PTD18__NF_IO2,
396 		VF610_PAD_PTD17__NF_IO1,
397 		VF610_PAD_PTD16__NF_IO0,
398 		VF610_PAD_PTB24__NF_WE_B,
399 		VF610_PAD_PTB25__NF_CE0_B,
400 		VF610_PAD_PTB27__NF_RE_B,
401 		VF610_PAD_PTC26__NF_RB_B,
402 		VF610_PAD_PTC27__NF_ALE,
403 		VF610_PAD_PTC28__NF_CLE
404 	};
405 
406 	imx_iomux_v3_setup_multiple_pads(nfc_pads, ARRAY_SIZE(nfc_pads));
407 }
408 #endif
409 
410 static void setup_iomux_qspi(void)
411 {
412 	static const iomux_v3_cfg_t qspi0_pads[] = {
413 		VF610_PAD_PTD0__QSPI0_A_QSCK,
414 		VF610_PAD_PTD1__QSPI0_A_CS0,
415 		VF610_PAD_PTD2__QSPI0_A_DATA3,
416 		VF610_PAD_PTD3__QSPI0_A_DATA2,
417 		VF610_PAD_PTD4__QSPI0_A_DATA1,
418 		VF610_PAD_PTD5__QSPI0_A_DATA0,
419 		VF610_PAD_PTD7__QSPI0_B_QSCK,
420 		VF610_PAD_PTD8__QSPI0_B_CS0,
421 		VF610_PAD_PTD9__QSPI0_B_DATA3,
422 		VF610_PAD_PTD10__QSPI0_B_DATA2,
423 		VF610_PAD_PTD11__QSPI0_B_DATA1,
424 		VF610_PAD_PTD12__QSPI0_B_DATA0,
425 	};
426 
427 	imx_iomux_v3_setup_multiple_pads(qspi0_pads, ARRAY_SIZE(qspi0_pads));
428 }
429 
430 #define ESDHC_PAD_CTRL	(PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_HIGH | \
431 			PAD_CTL_DSE_20ohm | PAD_CTL_OBE_IBE_ENABLE)
432 
433 struct fsl_esdhc_cfg esdhc_cfg[1] = {
434 	{ESDHC1_BASE_ADDR},
435 };
436 
437 int board_mmc_getcd(struct mmc *mmc)
438 {
439 	/* eSDHC1 is always present */
440 	return 1;
441 }
442 
443 int board_mmc_init(bd_t *bis)
444 {
445 	static const iomux_v3_cfg_t esdhc1_pads[] = {
446 		NEW_PAD_CTRL(VF610_PAD_PTA24__ESDHC1_CLK, ESDHC_PAD_CTRL),
447 		NEW_PAD_CTRL(VF610_PAD_PTA25__ESDHC1_CMD, ESDHC_PAD_CTRL),
448 		NEW_PAD_CTRL(VF610_PAD_PTA26__ESDHC1_DAT0, ESDHC_PAD_CTRL),
449 		NEW_PAD_CTRL(VF610_PAD_PTA27__ESDHC1_DAT1, ESDHC_PAD_CTRL),
450 		NEW_PAD_CTRL(VF610_PAD_PTA28__ESDHC1_DAT2, ESDHC_PAD_CTRL),
451 		NEW_PAD_CTRL(VF610_PAD_PTA29__ESDHC1_DAT3, ESDHC_PAD_CTRL),
452 	};
453 
454 	esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
455 
456 	imx_iomux_v3_setup_multiple_pads(
457 		esdhc1_pads, ARRAY_SIZE(esdhc1_pads));
458 
459 	return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
460 }
461 
462 static void clock_init(void)
463 {
464 	struct ccm_reg *ccm = (struct ccm_reg *)CCM_BASE_ADDR;
465 	struct anadig_reg *anadig = (struct anadig_reg *)ANADIG_BASE_ADDR;
466 
467 	clrsetbits_le32(&ccm->ccgr0, CCM_REG_CTRL_MASK,
468 			CCM_CCGR0_UART1_CTRL_MASK);
469 	clrsetbits_le32(&ccm->ccgr1, CCM_REG_CTRL_MASK,
470 			CCM_CCGR1_PIT_CTRL_MASK | CCM_CCGR1_WDOGA5_CTRL_MASK);
471 	clrsetbits_le32(&ccm->ccgr2, CCM_REG_CTRL_MASK,
472 			CCM_CCGR2_IOMUXC_CTRL_MASK | CCM_CCGR2_PORTA_CTRL_MASK |
473 			CCM_CCGR2_PORTB_CTRL_MASK | CCM_CCGR2_PORTC_CTRL_MASK |
474 			CCM_CCGR2_PORTD_CTRL_MASK | CCM_CCGR2_PORTE_CTRL_MASK |
475 			CCM_CCGR2_QSPI0_CTRL_MASK);
476 	clrsetbits_le32(&ccm->ccgr3, CCM_REG_CTRL_MASK,
477 			CCM_CCGR3_ANADIG_CTRL_MASK | CCM_CCGR3_SCSC_CTRL_MASK);
478 	clrsetbits_le32(&ccm->ccgr4, CCM_REG_CTRL_MASK,
479 			CCM_CCGR4_WKUP_CTRL_MASK | CCM_CCGR4_CCM_CTRL_MASK |
480 			CCM_CCGR4_GPC_CTRL_MASK);
481 	clrsetbits_le32(&ccm->ccgr6, CCM_REG_CTRL_MASK,
482 			CCM_CCGR6_OCOTP_CTRL_MASK | CCM_CCGR6_DDRMC_CTRL_MASK);
483 	clrsetbits_le32(&ccm->ccgr7, CCM_REG_CTRL_MASK,
484 			CCM_CCGR7_SDHC1_CTRL_MASK);
485 	clrsetbits_le32(&ccm->ccgr9, CCM_REG_CTRL_MASK,
486 			CCM_CCGR9_FEC0_CTRL_MASK | CCM_CCGR9_FEC1_CTRL_MASK);
487 	clrsetbits_le32(&ccm->ccgr10, CCM_REG_CTRL_MASK,
488 			CCM_CCGR10_NFC_CTRL_MASK | CCM_CCGR10_I2C2_CTRL_MASK);
489 
490 	clrsetbits_le32(&anadig->pll2_ctrl, ANADIG_PLL2_CTRL_POWERDOWN,
491 			ANADIG_PLL2_CTRL_ENABLE | ANADIG_PLL2_CTRL_DIV_SELECT);
492 	clrsetbits_le32(&anadig->pll1_ctrl, ANADIG_PLL1_CTRL_POWERDOWN,
493 			ANADIG_PLL1_CTRL_ENABLE | ANADIG_PLL1_CTRL_DIV_SELECT);
494 
495 	clrsetbits_le32(&ccm->ccr, CCM_CCR_OSCNT_MASK,
496 			CCM_CCR_FIRC_EN | CCM_CCR_OSCNT(5));
497 	clrsetbits_le32(&ccm->ccsr, CCM_REG_CTRL_MASK,
498 			CCM_CCSR_PLL1_PFD_CLK_SEL(3) | CCM_CCSR_PLL2_PFD4_EN |
499 			CCM_CCSR_PLL2_PFD3_EN | CCM_CCSR_PLL2_PFD2_EN |
500 			CCM_CCSR_PLL2_PFD1_EN | CCM_CCSR_PLL1_PFD4_EN |
501 			CCM_CCSR_PLL1_PFD3_EN | CCM_CCSR_PLL1_PFD2_EN |
502 			CCM_CCSR_PLL1_PFD1_EN | CCM_CCSR_DDRC_CLK_SEL(1) |
503 			CCM_CCSR_FAST_CLK_SEL(1) | CCM_CCSR_SYS_CLK_SEL(4));
504 	clrsetbits_le32(&ccm->cacrr, CCM_REG_CTRL_MASK,
505 			CCM_CACRR_IPG_CLK_DIV(1) | CCM_CACRR_BUS_CLK_DIV(2) |
506 			CCM_CACRR_ARM_CLK_DIV(0));
507 	clrsetbits_le32(&ccm->cscmr1, CCM_REG_CTRL_MASK,
508 			CCM_CSCMR1_ESDHC1_CLK_SEL(3) |
509 			CCM_CSCMR1_QSPI0_CLK_SEL(3) |
510 			CCM_CSCMR1_NFC_CLK_SEL(0));
511 	clrsetbits_le32(&ccm->cscdr1, CCM_REG_CTRL_MASK,
512 			CCM_CSCDR1_RMII_CLK_EN);
513 	clrsetbits_le32(&ccm->cscdr2, CCM_REG_CTRL_MASK,
514 			CCM_CSCDR2_ESDHC1_EN | CCM_CSCDR2_ESDHC1_CLK_DIV(0) |
515 			CCM_CSCDR2_NFC_EN);
516 	clrsetbits_le32(&ccm->cscdr3, CCM_REG_CTRL_MASK,
517 			CCM_CSCDR3_QSPI0_EN | CCM_CSCDR3_QSPI0_DIV(1) |
518 			CCM_CSCDR3_QSPI0_X2_DIV(1) |
519 			CCM_CSCDR3_QSPI0_X4_DIV(3) |
520 			CCM_CSCDR3_NFC_PRE_DIV(5));
521 	clrsetbits_le32(&ccm->cscmr2, CCM_REG_CTRL_MASK,
522 			CCM_CSCMR2_RMII_CLK_SEL(0));
523 }
524 
525 static void mscm_init(void)
526 {
527 	struct mscm_ir *mscmir = (struct mscm_ir *)MSCM_IR_BASE_ADDR;
528 	int i;
529 
530 	for (i = 0; i < MSCM_IRSPRC_NUM; i++)
531 		writew(MSCM_IRSPRC_CP0_EN, &mscmir->irsprc[i]);
532 }
533 
534 int board_phy_config(struct phy_device *phydev)
535 {
536 	if (phydev->drv->config)
537 		phydev->drv->config(phydev);
538 
539 	return 0;
540 }
541 
542 int board_early_init_f(void)
543 {
544 	clock_init();
545 	mscm_init();
546 	setup_iomux_uart();
547 	setup_iomux_enet();
548 	setup_iomux_i2c();
549 	setup_iomux_qspi();
550 	setup_iomux_nfc();
551 
552 	return 0;
553 }
554 
555 int board_init(void)
556 {
557 	struct scsc_reg *scsc = (struct scsc_reg *)SCSC_BASE_ADDR;
558 
559 	/* address of boot parameters */
560 	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
561 
562 	/*
563 	 * Enable external 32K Oscillator
564 	 *
565 	 * The internal clock experiences significant drift
566 	 * so we must use the external oscillator in order
567 	 * to maintain correct time in the hwclock
568 	 */
569 	setbits_le32(&scsc->sosc_ctr, SCSC_SOSC_CTR_SOSC_EN);
570 
571 	return 0;
572 }
573 
574 int checkboard(void)
575 {
576 	puts("Board: PCM-052\n");
577 
578 	return 0;
579 }
580 
581 static int do_m4go(cmd_tbl_t *cmdtp, int flag, int argc,
582 		       char * const argv[])
583 {
584 	ulong addr;
585 
586 	/* Consume 'm4go' */
587 	argc--; argv++;
588 
589 	/*
590 	 * Parse provided address - default to load_addr in case not provided.
591 	 */
592 
593 	if (argc)
594 		addr = simple_strtoul(argv[0], NULL, 16);
595 	else
596 		addr = load_addr;
597 
598 	/*
599 	 * Write boot address in PERSISTENT_ENTRY1[31:0] aka SRC_GPR2[31:0]
600 	 */
601 	writel(addr + 0x401, 0x4006E028);
602 
603 	/*
604 	 * Start secondary processor by enabling its clock
605 	 */
606 	writel(0x15a5a, 0x4006B08C);
607 
608 	return 1;
609 }
610 
611 U_BOOT_CMD(
612 	m4go, 2 /* one arg max */, 1 /* repeatable */, do_m4go,
613 	"start the secondary Cortex-M4 from scatter file image",
614 	"[<addr>]\n"
615 	"    - start secondary Cortex-M4 core using a scatter file image\n"
616 	"The argument needs to be a scatter file\n"
617 );
618