xref: /openbmc/u-boot/board/phytec/pcm052/pcm052.c (revision 4aac44be)
1 /*
2  * Copyright 2013 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <asm/io.h>
9 #include <asm/arch/imx-regs.h>
10 #include <asm/arch/iomux-vf610.h>
11 #include <asm/arch/ddrmc-vf610.h>
12 #include <asm/arch/crm_regs.h>
13 #include <asm/arch/clock.h>
14 #include <mmc.h>
15 #include <fsl_esdhc.h>
16 #include <miiphy.h>
17 #include <netdev.h>
18 #include <i2c.h>
19 
20 DECLARE_GLOBAL_DATA_PTR;
21 
22 /*
23  * Default DDR pad settings in arch/arm/include/asm/arch-vf610/iomux-vf610.h
24  * do not match our settings. Let us (re)define our own settings here.
25  */
26 
27 #define PCM052_VF610_DDR_PAD_CTRL	PAD_CTL_DSE_20ohm
28 #define PCM052_VF610_DDR_PAD_CTRL_1	(PAD_CTL_DSE_20ohm | \
29 					PAD_CTL_INPUT_DIFFERENTIAL)
30 #define PCM052_VF610_DDR_RESET_PAD_CTL	(PAD_CTL_DSE_150ohm | \
31 					PAD_CTL_PUS_100K_UP | \
32 					PAD_CTL_INPUT_DIFFERENTIAL)
33 
34 enum {
35 	PCM052_VF610_PAD_DDR_RESETB			= IOMUX_PAD(0x021c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_RESET_PAD_CTL),
36 	PCM052_VF610_PAD_DDR_A15__DDR_A_15		= IOMUX_PAD(0x0220, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
37 	PCM052_VF610_PAD_DDR_A14__DDR_A_14		= IOMUX_PAD(0x0224, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
38 	PCM052_VF610_PAD_DDR_A13__DDR_A_13		= IOMUX_PAD(0x0228, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
39 	PCM052_VF610_PAD_DDR_A12__DDR_A_12		= IOMUX_PAD(0x022c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
40 	PCM052_VF610_PAD_DDR_A11__DDR_A_11		= IOMUX_PAD(0x0230, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
41 	PCM052_VF610_PAD_DDR_A10__DDR_A_10		= IOMUX_PAD(0x0234, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
42 	PCM052_VF610_PAD_DDR_A9__DDR_A_9		= IOMUX_PAD(0x0238, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
43 	PCM052_VF610_PAD_DDR_A8__DDR_A_8		= IOMUX_PAD(0x023c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
44 	PCM052_VF610_PAD_DDR_A7__DDR_A_7		= IOMUX_PAD(0x0240, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
45 	PCM052_VF610_PAD_DDR_A6__DDR_A_6		= IOMUX_PAD(0x0244, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
46 	PCM052_VF610_PAD_DDR_A5__DDR_A_5		= IOMUX_PAD(0x0248, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
47 	PCM052_VF610_PAD_DDR_A4__DDR_A_4		= IOMUX_PAD(0x024c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
48 	PCM052_VF610_PAD_DDR_A3__DDR_A_3		= IOMUX_PAD(0x0250, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
49 	PCM052_VF610_PAD_DDR_A2__DDR_A_2		= IOMUX_PAD(0x0254, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
50 	PCM052_VF610_PAD_DDR_A1__DDR_A_1		= IOMUX_PAD(0x0258, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
51 	PCM052_VF610_PAD_DDR_A0__DDR_A_0		= IOMUX_PAD(0x025c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
52 	PCM052_VF610_PAD_DDR_BA2__DDR_BA_2		= IOMUX_PAD(0x0260, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
53 	PCM052_VF610_PAD_DDR_BA1__DDR_BA_1		= IOMUX_PAD(0x0264, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
54 	PCM052_VF610_PAD_DDR_BA0__DDR_BA_0		= IOMUX_PAD(0x0268, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
55 	PCM052_VF610_PAD_DDR_CAS__DDR_CAS_B		= IOMUX_PAD(0x026c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
56 	PCM052_VF610_PAD_DDR_CKE__DDR_CKE_0		= IOMUX_PAD(0x0270, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
57 	PCM052_VF610_PAD_DDR_CLK__DDR_CLK_0		= IOMUX_PAD(0x0274, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL_1),
58 	PCM052_VF610_PAD_DDR_CS__DDR_CS_B_0		= IOMUX_PAD(0x0278, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
59 	PCM052_VF610_PAD_DDR_D15__DDR_D_15		= IOMUX_PAD(0x027c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
60 	PCM052_VF610_PAD_DDR_D14__DDR_D_14		= IOMUX_PAD(0x0280, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
61 	PCM052_VF610_PAD_DDR_D13__DDR_D_13		= IOMUX_PAD(0x0284, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
62 	PCM052_VF610_PAD_DDR_D12__DDR_D_12		= IOMUX_PAD(0x0288, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
63 	PCM052_VF610_PAD_DDR_D11__DDR_D_11		= IOMUX_PAD(0x028c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
64 	PCM052_VF610_PAD_DDR_D10__DDR_D_10		= IOMUX_PAD(0x0290, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
65 	PCM052_VF610_PAD_DDR_D9__DDR_D_9		= IOMUX_PAD(0x0294, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
66 	PCM052_VF610_PAD_DDR_D8__DDR_D_8		= IOMUX_PAD(0x0298, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
67 	PCM052_VF610_PAD_DDR_D7__DDR_D_7		= IOMUX_PAD(0x029c, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
68 	PCM052_VF610_PAD_DDR_D6__DDR_D_6		= IOMUX_PAD(0x02a0, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
69 	PCM052_VF610_PAD_DDR_D5__DDR_D_5		= IOMUX_PAD(0x02a4, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
70 	PCM052_VF610_PAD_DDR_D4__DDR_D_4		= IOMUX_PAD(0x02a8, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
71 	PCM052_VF610_PAD_DDR_D3__DDR_D_3		= IOMUX_PAD(0x02ac, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
72 	PCM052_VF610_PAD_DDR_D2__DDR_D_2		= IOMUX_PAD(0x02b0, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
73 	PCM052_VF610_PAD_DDR_D1__DDR_D_1		= IOMUX_PAD(0x02b4, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
74 	PCM052_VF610_PAD_DDR_D0__DDR_D_0		= IOMUX_PAD(0x02b8, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
75 	PCM052_VF610_PAD_DDR_DQM1__DDR_DQM_1		= IOMUX_PAD(0x02bc, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
76 	PCM052_VF610_PAD_DDR_DQM0__DDR_DQM_0		= IOMUX_PAD(0x02c0, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
77 	PCM052_VF610_PAD_DDR_DQS1__DDR_DQS_1		= IOMUX_PAD(0x02c4, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL_1),
78 	PCM052_VF610_PAD_DDR_DQS0__DDR_DQS_0		= IOMUX_PAD(0x02c8, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL_1),
79 	PCM052_VF610_PAD_DDR_RAS__DDR_RAS_B		= IOMUX_PAD(0x02cc, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
80 	PCM052_VF610_PAD_DDR_WE__DDR_WE_B		= IOMUX_PAD(0x02d0, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
81 	PCM052_VF610_PAD_DDR_ODT1__DDR_ODT_0		= IOMUX_PAD(0x02d4, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
82 	PCM052_VF610_PAD_DDR_ODT0__DDR_ODT_1		= IOMUX_PAD(0x02d8, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
83 	PCM052_VF610_PAD_DDR_DDRBYTE1__DDR_DDRBYTE1	= IOMUX_PAD(0x02dc, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
84 	PCM052_VF610_PAD_DDR_DDRBYTE0__DDR_DDRBYTE0	= IOMUX_PAD(0x02e0, __NA_, 0, __NA_, 0, PCM052_VF610_DDR_PAD_CTRL),
85 };
86 
87 static struct ddrmc_cr_setting pcm052_cr_settings[] = {
88 	/* not in the datasheets, but in the original code */
89 	{ 0x00002000, 105 },
90 	{ 0x00000020, 110 },
91 	/* AXI */
92 	{ DDRMC_CR117_AXI0_W_PRI(1) | DDRMC_CR117_AXI0_R_PRI(1), 117 },
93 	{ DDRMC_CR118_AXI1_W_PRI(1) | DDRMC_CR118_AXI1_R_PRI(1), 118 },
94 	{ DDRMC_CR120_AXI0_PRI1_RPRI(2) |
95 		   DDRMC_CR120_AXI0_PRI0_RPRI(2), 120 },
96 	{ DDRMC_CR121_AXI0_PRI3_RPRI(2) |
97 		   DDRMC_CR121_AXI0_PRI2_RPRI(2), 121 },
98 	{ DDRMC_CR122_AXI1_PRI1_RPRI(1) | DDRMC_CR122_AXI1_PRI0_RPRI(1) |
99 		   DDRMC_CR122_AXI0_PRIRLX(100), 122 },
100 	{ DDRMC_CR123_AXI1_P_ODR_EN | DDRMC_CR123_AXI1_PRI3_RPRI(1) |
101 		   DDRMC_CR123_AXI1_PRI2_RPRI(1), 123 },
102 	{ DDRMC_CR124_AXI1_PRIRLX(100), 124 },
103 	{ DDRMC_CR126_PHY_RDLAT(11), 126 },
104 	{ DDRMC_CR132_WRLAT_ADJ(5) | DDRMC_CR132_RDLAT_ADJ(6), 132 },
105 	{ DDRMC_CR137_PHYCTL_DL(2), 137 },
106 	{ DDRMC_CR139_PHY_WRLV_RESPLAT(4) | DDRMC_CR139_PHY_WRLV_LOAD(7) |
107 		   DDRMC_CR139_PHY_WRLV_DLL(3) |
108 		   DDRMC_CR139_PHY_WRLV_EN(3), 139 },
109 	{ DDRMC_CR154_PAD_ZQ_EARLY_CMP_EN_TIMER(13) |
110 		   DDRMC_CR154_PAD_ZQ_MODE(1) |
111 		   DDRMC_CR154_DDR_SEL_PAD_CONTR(3) |
112 		   DDRMC_CR154_PAD_ZQ_HW_FOR(0), 154 },
113 	{ DDRMC_CR155_PAD_ODT_BYTE1(5) | DDRMC_CR155_PAD_ODT_BYTE0(5), 155 },
114 	{ DDRMC_CR158_TWR(6), 158 },
115 	{ DDRMC_CR161_ODT_EN(0) | DDRMC_CR161_TODTH_RD(0) |
116 		   DDRMC_CR161_TODTH_WR(6), 161 },
117 	/* end marker */
118 	{ 0, -1 }
119 };
120 
121 /* PHY settings -- most of them differ from default in imx-regs.h */
122 
123 #define PCM052_DDRMC_PHY_DQ_TIMING			0x00002213
124 #define PCM052_DDRMC_PHY_CTRL				0x00290000
125 #define PCM052_DDRMC_PHY_SLAVE_CTRL			0x00002c00
126 #define PCM052_DDRMC_PHY_PROC_PAD_ODT			0x00010020
127 
128 static struct ddrmc_phy_setting pcm052_phy_settings[] = {
129 	{ PCM052_DDRMC_PHY_DQ_TIMING,  0 },
130 	{ PCM052_DDRMC_PHY_DQ_TIMING, 16 },
131 	{ PCM052_DDRMC_PHY_DQ_TIMING, 32 },
132 	{ PCM052_DDRMC_PHY_DQ_TIMING, 48 },
133 	{ DDRMC_PHY_DQS_TIMING,  1 },
134 	{ DDRMC_PHY_DQS_TIMING, 17 },
135 	{ DDRMC_PHY_DQS_TIMING, 33 },
136 	{ DDRMC_PHY_DQS_TIMING, 49 },
137 	{ PCM052_DDRMC_PHY_CTRL,  2 },
138 	{ PCM052_DDRMC_PHY_CTRL, 18 },
139 	{ PCM052_DDRMC_PHY_CTRL, 34 },
140 	{ DDRMC_PHY_MASTER_CTRL,  3 },
141 	{ DDRMC_PHY_MASTER_CTRL, 19 },
142 	{ DDRMC_PHY_MASTER_CTRL, 35 },
143 	{ PCM052_DDRMC_PHY_SLAVE_CTRL,  4 },
144 	{ PCM052_DDRMC_PHY_SLAVE_CTRL, 20 },
145 	{ PCM052_DDRMC_PHY_SLAVE_CTRL, 36 },
146 	{ DDRMC_PHY50_DDR3_MODE | DDRMC_PHY50_EN_SW_HALF_CYCLE, 50 },
147 	{ PCM052_DDRMC_PHY_PROC_PAD_ODT, 52 },
148 
149 	/* end marker */
150 	{ 0, -1 }
151 };
152 
153 int dram_init(void)
154 {
155 	static const iomux_v3_cfg_t pcm052_pads[] = {
156 		PCM052_VF610_PAD_DDR_A15__DDR_A_15,
157 		PCM052_VF610_PAD_DDR_A14__DDR_A_14,
158 		PCM052_VF610_PAD_DDR_A13__DDR_A_13,
159 		PCM052_VF610_PAD_DDR_A12__DDR_A_12,
160 		PCM052_VF610_PAD_DDR_A11__DDR_A_11,
161 		PCM052_VF610_PAD_DDR_A10__DDR_A_10,
162 		PCM052_VF610_PAD_DDR_A9__DDR_A_9,
163 		PCM052_VF610_PAD_DDR_A8__DDR_A_8,
164 		PCM052_VF610_PAD_DDR_A7__DDR_A_7,
165 		PCM052_VF610_PAD_DDR_A6__DDR_A_6,
166 		PCM052_VF610_PAD_DDR_A5__DDR_A_5,
167 		PCM052_VF610_PAD_DDR_A4__DDR_A_4,
168 		PCM052_VF610_PAD_DDR_A3__DDR_A_3,
169 		PCM052_VF610_PAD_DDR_A2__DDR_A_2,
170 		PCM052_VF610_PAD_DDR_A1__DDR_A_1,
171 		PCM052_VF610_PAD_DDR_A0__DDR_A_0,
172 		PCM052_VF610_PAD_DDR_BA2__DDR_BA_2,
173 		PCM052_VF610_PAD_DDR_BA1__DDR_BA_1,
174 		PCM052_VF610_PAD_DDR_BA0__DDR_BA_0,
175 		PCM052_VF610_PAD_DDR_CAS__DDR_CAS_B,
176 		PCM052_VF610_PAD_DDR_CKE__DDR_CKE_0,
177 		PCM052_VF610_PAD_DDR_CLK__DDR_CLK_0,
178 		PCM052_VF610_PAD_DDR_CS__DDR_CS_B_0,
179 		PCM052_VF610_PAD_DDR_D15__DDR_D_15,
180 		PCM052_VF610_PAD_DDR_D14__DDR_D_14,
181 		PCM052_VF610_PAD_DDR_D13__DDR_D_13,
182 		PCM052_VF610_PAD_DDR_D12__DDR_D_12,
183 		PCM052_VF610_PAD_DDR_D11__DDR_D_11,
184 		PCM052_VF610_PAD_DDR_D10__DDR_D_10,
185 		PCM052_VF610_PAD_DDR_D9__DDR_D_9,
186 		PCM052_VF610_PAD_DDR_D8__DDR_D_8,
187 		PCM052_VF610_PAD_DDR_D7__DDR_D_7,
188 		PCM052_VF610_PAD_DDR_D6__DDR_D_6,
189 		PCM052_VF610_PAD_DDR_D5__DDR_D_5,
190 		PCM052_VF610_PAD_DDR_D4__DDR_D_4,
191 		PCM052_VF610_PAD_DDR_D3__DDR_D_3,
192 		PCM052_VF610_PAD_DDR_D2__DDR_D_2,
193 		PCM052_VF610_PAD_DDR_D1__DDR_D_1,
194 		PCM052_VF610_PAD_DDR_D0__DDR_D_0,
195 		PCM052_VF610_PAD_DDR_DQM1__DDR_DQM_1,
196 		PCM052_VF610_PAD_DDR_DQM0__DDR_DQM_0,
197 		PCM052_VF610_PAD_DDR_DQS1__DDR_DQS_1,
198 		PCM052_VF610_PAD_DDR_DQS0__DDR_DQS_0,
199 		PCM052_VF610_PAD_DDR_RAS__DDR_RAS_B,
200 		PCM052_VF610_PAD_DDR_WE__DDR_WE_B,
201 		PCM052_VF610_PAD_DDR_ODT1__DDR_ODT_0,
202 		PCM052_VF610_PAD_DDR_ODT0__DDR_ODT_1,
203 		PCM052_VF610_PAD_DDR_DDRBYTE1__DDR_DDRBYTE1,
204 		PCM052_VF610_PAD_DDR_DDRBYTE0__DDR_DDRBYTE0,
205 		PCM052_VF610_PAD_DDR_RESETB,
206 	};
207 
208 #if defined(CONFIG_TARGET_PCM052)
209 
210 	static const struct ddr3_jedec_timings pcm052_ddr_timings = {
211 		.tinit             = 5,
212 		.trst_pwron        = 80000,
213 		.cke_inactive      = 200000,
214 		.wrlat             = 5,
215 		.caslat_lin        = 12,
216 		.trc               = 6,
217 		.trrd              = 4,
218 		.tccd              = 4,
219 		.tbst_int_interval = 4,
220 		.tfaw              = 18,
221 		.trp               = 6,
222 		.twtr              = 4,
223 		.tras_min          = 15,
224 		.tmrd              = 4,
225 		.trtp              = 4,
226 		.tras_max          = 14040,
227 		.tmod              = 12,
228 		.tckesr            = 4,
229 		.tcke              = 3,
230 		.trcd_int          = 6,
231 		.tras_lockout      = 1,
232 		.tdal              = 10,
233 		.bstlen            = 3,
234 		.tdll              = 512,
235 		.trp_ab            = 6,
236 		.tref              = 1542,
237 		.trfc              = 64,
238 		.tref_int          = 5,
239 		.tpdex             = 3,
240 		.txpdll            = 10,
241 		.txsnr             = 68,
242 		.txsr              = 506,
243 		.cksrx             = 5,
244 		.cksre             = 5,
245 		.freq_chg_en       = 1,
246 		.zqcl              = 256,
247 		.zqinit            = 512,
248 		.zqcs              = 64,
249 		.ref_per_zq        = 64,
250 		.zqcs_rotate       = 1,
251 		.aprebit           = 10,
252 		.cmd_age_cnt       = 255,
253 		.age_cnt           = 255,
254 		.q_fullness        = 0,
255 		.odt_rd_mapcs0     = 1,
256 		.odt_wr_mapcs0     = 1,
257 		.wlmrd             = 40,
258 		.wldqsen           = 25,
259 	};
260 
261     const int row_diff = 2;
262 
263 #elif defined(CONFIG_TARGET_BK4R1)
264 
265 	static const struct ddr3_jedec_timings pcm052_ddr_timings = {
266 		.tinit             = 5,
267 		.trst_pwron        = 80000,
268 		.cke_inactive      = 200000,
269 		.wrlat             = 5,
270 		.caslat_lin        = 12,
271 		.trc               = 6,
272 		.trrd              = 4,
273 		.tccd              = 4,
274 		.tbst_int_interval = 0,
275 		.tfaw              = 16,
276 		.trp               = 6,
277 		.twtr              = 4,
278 		.tras_min          = 15,
279 		.tmrd              = 4,
280 		.trtp              = 4,
281 		.tras_max          = 28080,
282 		.tmod              = 12,
283 		.tckesr            = 4,
284 		.tcke              = 3,
285 		.trcd_int          = 6,
286 		.tras_lockout      = 1,
287 		.tdal              = 12,
288 		.bstlen            = 3,
289 		.tdll              = 512,
290 		.trp_ab            = 6,
291 		.tref              = 3120,
292 		.trfc              = 104,
293 		.tref_int          = 0,
294 		.tpdex             = 3,
295 		.txpdll            = 10,
296 		.txsnr             = 108,
297 		.txsr              = 512,
298 		.cksrx             = 5,
299 		.cksre             = 5,
300 		.freq_chg_en       = 1,
301 		.zqcl              = 256,
302 		.zqinit            = 512,
303 		.zqcs              = 64,
304 		.ref_per_zq        = 64,
305 		.zqcs_rotate       = 1,
306 		.aprebit           = 10,
307 		.cmd_age_cnt       = 255,
308 		.age_cnt           = 255,
309 		.q_fullness        = 0,
310 		.odt_rd_mapcs0     = 1,
311 		.odt_wr_mapcs0     = 1,
312 		.wlmrd             = 40,
313 		.wldqsen           = 25,
314 	};
315 
316     const int row_diff = 1;
317 
318 #else /* Unknown PCM052 variant */
319 
320 #error DDR characteristics undefined for this target. Please define them.
321 
322 #endif
323 
324 	imx_iomux_v3_setup_multiple_pads(pcm052_pads, ARRAY_SIZE(pcm052_pads));
325 
326 	ddrmc_ctrl_init_ddr3(&pcm052_ddr_timings, pcm052_cr_settings,
327 			     pcm052_phy_settings, 1, row_diff);
328 
329 	gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
330 
331 	return 0;
332 }
333 
334 static void setup_iomux_uart(void)
335 {
336 	static const iomux_v3_cfg_t uart1_pads[] = {
337 		NEW_PAD_CTRL(VF610_PAD_PTB4__UART1_TX, VF610_UART_PAD_CTRL),
338 		NEW_PAD_CTRL(VF610_PAD_PTB5__UART1_RX, VF610_UART_PAD_CTRL),
339 	};
340 
341 	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
342 }
343 
344 #define ENET_PAD_CTRL	(PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_HIGH | \
345 			PAD_CTL_DSE_50ohm | PAD_CTL_OBE_IBE_ENABLE)
346 
347 static void setup_iomux_enet(void)
348 {
349 	static const iomux_v3_cfg_t enet0_pads[] = {
350 		NEW_PAD_CTRL(VF610_PAD_PTA6__RMII0_CLKIN, ENET_PAD_CTRL),
351 		NEW_PAD_CTRL(VF610_PAD_PTC1__RMII0_MDIO, ENET_PAD_CTRL),
352 		NEW_PAD_CTRL(VF610_PAD_PTC0__RMII0_MDC, ENET_PAD_CTRL),
353 		NEW_PAD_CTRL(VF610_PAD_PTC2__RMII0_CRS_DV, ENET_PAD_CTRL),
354 		NEW_PAD_CTRL(VF610_PAD_PTC3__RMII0_RD1, ENET_PAD_CTRL),
355 		NEW_PAD_CTRL(VF610_PAD_PTC4__RMII0_RD0, ENET_PAD_CTRL),
356 		NEW_PAD_CTRL(VF610_PAD_PTC5__RMII0_RXER, ENET_PAD_CTRL),
357 		NEW_PAD_CTRL(VF610_PAD_PTC6__RMII0_TD1, ENET_PAD_CTRL),
358 		NEW_PAD_CTRL(VF610_PAD_PTC7__RMII0_TD0, ENET_PAD_CTRL),
359 		NEW_PAD_CTRL(VF610_PAD_PTC8__RMII0_TXEN, ENET_PAD_CTRL),
360 	};
361 
362 	imx_iomux_v3_setup_multiple_pads(enet0_pads, ARRAY_SIZE(enet0_pads));
363 }
364 
365 /*
366  * I2C2 is the only I2C used, on pads PTA22/PTA23.
367  */
368 
369 static void setup_iomux_i2c(void)
370 {
371 	static const iomux_v3_cfg_t i2c_pads[] = {
372 		VF610_PAD_PTA22__I2C2_SCL,
373 		VF610_PAD_PTA23__I2C2_SDA,
374 	};
375 
376 	imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads));
377 }
378 
379 #ifdef CONFIG_NAND_VF610_NFC
380 static void setup_iomux_nfc(void)
381 {
382 	static const iomux_v3_cfg_t nfc_pads[] = {
383 		VF610_PAD_PTD31__NF_IO15,
384 		VF610_PAD_PTD30__NF_IO14,
385 		VF610_PAD_PTD29__NF_IO13,
386 		VF610_PAD_PTD28__NF_IO12,
387 		VF610_PAD_PTD27__NF_IO11,
388 		VF610_PAD_PTD26__NF_IO10,
389 		VF610_PAD_PTD25__NF_IO9,
390 		VF610_PAD_PTD24__NF_IO8,
391 		VF610_PAD_PTD23__NF_IO7,
392 		VF610_PAD_PTD22__NF_IO6,
393 		VF610_PAD_PTD21__NF_IO5,
394 		VF610_PAD_PTD20__NF_IO4,
395 		VF610_PAD_PTD19__NF_IO3,
396 		VF610_PAD_PTD18__NF_IO2,
397 		VF610_PAD_PTD17__NF_IO1,
398 		VF610_PAD_PTD16__NF_IO0,
399 		VF610_PAD_PTB24__NF_WE_B,
400 		VF610_PAD_PTB25__NF_CE0_B,
401 		VF610_PAD_PTB27__NF_RE_B,
402 		VF610_PAD_PTC26__NF_RB_B,
403 		VF610_PAD_PTC27__NF_ALE,
404 		VF610_PAD_PTC28__NF_CLE
405 	};
406 
407 	imx_iomux_v3_setup_multiple_pads(nfc_pads, ARRAY_SIZE(nfc_pads));
408 }
409 #endif
410 
411 static void setup_iomux_qspi(void)
412 {
413 	static const iomux_v3_cfg_t qspi0_pads[] = {
414 		VF610_PAD_PTD0__QSPI0_A_QSCK,
415 		VF610_PAD_PTD1__QSPI0_A_CS0,
416 		VF610_PAD_PTD2__QSPI0_A_DATA3,
417 		VF610_PAD_PTD3__QSPI0_A_DATA2,
418 		VF610_PAD_PTD4__QSPI0_A_DATA1,
419 		VF610_PAD_PTD5__QSPI0_A_DATA0,
420 		VF610_PAD_PTD7__QSPI0_B_QSCK,
421 		VF610_PAD_PTD8__QSPI0_B_CS0,
422 		VF610_PAD_PTD9__QSPI0_B_DATA3,
423 		VF610_PAD_PTD10__QSPI0_B_DATA2,
424 		VF610_PAD_PTD11__QSPI0_B_DATA1,
425 		VF610_PAD_PTD12__QSPI0_B_DATA0,
426 	};
427 
428 	imx_iomux_v3_setup_multiple_pads(qspi0_pads, ARRAY_SIZE(qspi0_pads));
429 }
430 
431 #define ESDHC_PAD_CTRL	(PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_HIGH | \
432 			PAD_CTL_DSE_20ohm | PAD_CTL_OBE_IBE_ENABLE)
433 
434 struct fsl_esdhc_cfg esdhc_cfg[1] = {
435 	{ESDHC1_BASE_ADDR},
436 };
437 
438 int board_mmc_getcd(struct mmc *mmc)
439 {
440 	/* eSDHC1 is always present */
441 	return 1;
442 }
443 
444 int board_mmc_init(bd_t *bis)
445 {
446 	static const iomux_v3_cfg_t esdhc1_pads[] = {
447 		NEW_PAD_CTRL(VF610_PAD_PTA24__ESDHC1_CLK, ESDHC_PAD_CTRL),
448 		NEW_PAD_CTRL(VF610_PAD_PTA25__ESDHC1_CMD, ESDHC_PAD_CTRL),
449 		NEW_PAD_CTRL(VF610_PAD_PTA26__ESDHC1_DAT0, ESDHC_PAD_CTRL),
450 		NEW_PAD_CTRL(VF610_PAD_PTA27__ESDHC1_DAT1, ESDHC_PAD_CTRL),
451 		NEW_PAD_CTRL(VF610_PAD_PTA28__ESDHC1_DAT2, ESDHC_PAD_CTRL),
452 		NEW_PAD_CTRL(VF610_PAD_PTA29__ESDHC1_DAT3, ESDHC_PAD_CTRL),
453 	};
454 
455 	esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
456 
457 	imx_iomux_v3_setup_multiple_pads(
458 		esdhc1_pads, ARRAY_SIZE(esdhc1_pads));
459 
460 	return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
461 }
462 
463 static void clock_init(void)
464 {
465 	struct ccm_reg *ccm = (struct ccm_reg *)CCM_BASE_ADDR;
466 	struct anadig_reg *anadig = (struct anadig_reg *)ANADIG_BASE_ADDR;
467 
468 	clrsetbits_le32(&ccm->ccgr0, CCM_REG_CTRL_MASK,
469 			CCM_CCGR0_UART1_CTRL_MASK);
470 	clrsetbits_le32(&ccm->ccgr1, CCM_REG_CTRL_MASK,
471 			CCM_CCGR1_PIT_CTRL_MASK | CCM_CCGR1_WDOGA5_CTRL_MASK);
472 	clrsetbits_le32(&ccm->ccgr2, CCM_REG_CTRL_MASK,
473 			CCM_CCGR2_IOMUXC_CTRL_MASK | CCM_CCGR2_PORTA_CTRL_MASK |
474 			CCM_CCGR2_PORTB_CTRL_MASK | CCM_CCGR2_PORTC_CTRL_MASK |
475 			CCM_CCGR2_PORTD_CTRL_MASK | CCM_CCGR2_PORTE_CTRL_MASK |
476 			CCM_CCGR2_QSPI0_CTRL_MASK);
477 	clrsetbits_le32(&ccm->ccgr3, CCM_REG_CTRL_MASK,
478 			CCM_CCGR3_ANADIG_CTRL_MASK | CCM_CCGR3_SCSC_CTRL_MASK);
479 	clrsetbits_le32(&ccm->ccgr4, CCM_REG_CTRL_MASK,
480 			CCM_CCGR4_WKUP_CTRL_MASK | CCM_CCGR4_CCM_CTRL_MASK |
481 			CCM_CCGR4_GPC_CTRL_MASK);
482 	clrsetbits_le32(&ccm->ccgr6, CCM_REG_CTRL_MASK,
483 			CCM_CCGR6_OCOTP_CTRL_MASK | CCM_CCGR6_DDRMC_CTRL_MASK);
484 	clrsetbits_le32(&ccm->ccgr7, CCM_REG_CTRL_MASK,
485 			CCM_CCGR7_SDHC1_CTRL_MASK);
486 	clrsetbits_le32(&ccm->ccgr9, CCM_REG_CTRL_MASK,
487 			CCM_CCGR9_FEC0_CTRL_MASK | CCM_CCGR9_FEC1_CTRL_MASK);
488 	clrsetbits_le32(&ccm->ccgr10, CCM_REG_CTRL_MASK,
489 			CCM_CCGR10_NFC_CTRL_MASK | CCM_CCGR10_I2C2_CTRL_MASK);
490 
491 	clrsetbits_le32(&anadig->pll2_ctrl, ANADIG_PLL2_CTRL_POWERDOWN,
492 			ANADIG_PLL2_CTRL_ENABLE | ANADIG_PLL2_CTRL_DIV_SELECT);
493 	clrsetbits_le32(&anadig->pll1_ctrl, ANADIG_PLL1_CTRL_POWERDOWN,
494 			ANADIG_PLL1_CTRL_ENABLE | ANADIG_PLL1_CTRL_DIV_SELECT);
495 
496 	clrsetbits_le32(&ccm->ccr, CCM_CCR_OSCNT_MASK,
497 			CCM_CCR_FIRC_EN | CCM_CCR_OSCNT(5));
498 	clrsetbits_le32(&ccm->ccsr, CCM_REG_CTRL_MASK,
499 			CCM_CCSR_PLL1_PFD_CLK_SEL(3) | CCM_CCSR_PLL2_PFD4_EN |
500 			CCM_CCSR_PLL2_PFD3_EN | CCM_CCSR_PLL2_PFD2_EN |
501 			CCM_CCSR_PLL2_PFD1_EN | CCM_CCSR_PLL1_PFD4_EN |
502 			CCM_CCSR_PLL1_PFD3_EN | CCM_CCSR_PLL1_PFD2_EN |
503 			CCM_CCSR_PLL1_PFD1_EN | CCM_CCSR_DDRC_CLK_SEL(1) |
504 			CCM_CCSR_FAST_CLK_SEL(1) | CCM_CCSR_SYS_CLK_SEL(4));
505 	clrsetbits_le32(&ccm->cacrr, CCM_REG_CTRL_MASK,
506 			CCM_CACRR_IPG_CLK_DIV(1) | CCM_CACRR_BUS_CLK_DIV(2) |
507 			CCM_CACRR_ARM_CLK_DIV(0));
508 	clrsetbits_le32(&ccm->cscmr1, CCM_REG_CTRL_MASK,
509 			CCM_CSCMR1_ESDHC1_CLK_SEL(3) |
510 			CCM_CSCMR1_QSPI0_CLK_SEL(3) |
511 			CCM_CSCMR1_NFC_CLK_SEL(0));
512 	clrsetbits_le32(&ccm->cscdr1, CCM_REG_CTRL_MASK,
513 			CCM_CSCDR1_RMII_CLK_EN);
514 	clrsetbits_le32(&ccm->cscdr2, CCM_REG_CTRL_MASK,
515 			CCM_CSCDR2_ESDHC1_EN | CCM_CSCDR2_ESDHC1_CLK_DIV(0) |
516 			CCM_CSCDR2_NFC_EN);
517 	clrsetbits_le32(&ccm->cscdr3, CCM_REG_CTRL_MASK,
518 			CCM_CSCDR3_QSPI0_EN | CCM_CSCDR3_QSPI0_DIV(1) |
519 			CCM_CSCDR3_QSPI0_X2_DIV(1) |
520 			CCM_CSCDR3_QSPI0_X4_DIV(3) |
521 			CCM_CSCDR3_NFC_PRE_DIV(5));
522 	clrsetbits_le32(&ccm->cscmr2, CCM_REG_CTRL_MASK,
523 			CCM_CSCMR2_RMII_CLK_SEL(0));
524 }
525 
526 static void mscm_init(void)
527 {
528 	struct mscm_ir *mscmir = (struct mscm_ir *)MSCM_IR_BASE_ADDR;
529 	int i;
530 
531 	for (i = 0; i < MSCM_IRSPRC_NUM; i++)
532 		writew(MSCM_IRSPRC_CP0_EN, &mscmir->irsprc[i]);
533 }
534 
535 int board_phy_config(struct phy_device *phydev)
536 {
537 	if (phydev->drv->config)
538 		phydev->drv->config(phydev);
539 
540 	return 0;
541 }
542 
543 int board_early_init_f(void)
544 {
545 	clock_init();
546 	mscm_init();
547 	setup_iomux_uart();
548 	setup_iomux_enet();
549 	setup_iomux_i2c();
550 	setup_iomux_qspi();
551 	setup_iomux_nfc();
552 
553 	return 0;
554 }
555 
556 int board_init(void)
557 {
558 	struct scsc_reg *scsc = (struct scsc_reg *)SCSC_BASE_ADDR;
559 
560 	/* address of boot parameters */
561 	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
562 
563 	/*
564 	 * Enable external 32K Oscillator
565 	 *
566 	 * The internal clock experiences significant drift
567 	 * so we must use the external oscillator in order
568 	 * to maintain correct time in the hwclock
569 	 */
570 	setbits_le32(&scsc->sosc_ctr, SCSC_SOSC_CTR_SOSC_EN);
571 
572 	return 0;
573 }
574 
575 int checkboard(void)
576 {
577 	puts("Board: PCM-052\n");
578 
579 	return 0;
580 }
581 
582 static int do_m4go(cmd_tbl_t *cmdtp, int flag, int argc,
583 		       char * const argv[])
584 {
585 	ulong addr;
586 
587 	/* Consume 'm4go' */
588 	argc--; argv++;
589 
590 	/*
591 	 * Parse provided address - default to load_addr in case not provided.
592 	 */
593 
594 	if (argc)
595 		addr = simple_strtoul(argv[0], NULL, 16);
596 	else
597 		addr = load_addr;
598 
599 	/*
600 	 * Write boot address in PERSISTENT_ENTRY1[31:0] aka SRC_GPR2[31:0]
601 	 */
602 	writel(addr + 0x401, 0x4006E028);
603 
604 	/*
605 	 * Start secondary processor by enabling its clock
606 	 */
607 	writel(0x15a5a, 0x4006B08C);
608 
609 	return 1;
610 }
611 
612 U_BOOT_CMD(
613 	m4go, 2 /* one arg max */, 1 /* repeatable */, do_m4go,
614 	"start the secondary Cortex-M4 from scatter file image",
615 	"[<addr>]\n"
616 	"    - start secondary Cortex-M4 core using a scatter file image\n"
617 	"The argument needs to be a scatter file\n"
618 );
619