]> git.ipfire.org Git - people/ms/u-boot.git/blob - board/phytec/pfla02/pfla02.c
projects / people / ms / u-boot.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge git://www.denx.de/git/u-boot-imx
[people/ms/u-boot.git] / board / phytec / pfla02 / pfla02.c
1 /*
2 * Copyright (C) 2017 Stefano Babic <sbabic@denx.de>
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7 #include <common.h>
8 #include <asm/io.h>
9 #include <asm/arch/clock.h>
10 #include <asm/arch/imx-regs.h>
11 #include <asm/arch/iomux.h>
12 #include <asm/arch/crm_regs.h>
13 #include <asm/arch/iomux.h>
14 #include <asm/arch/mx6-pins.h>
15 #include <asm/mach-imx/iomux-v3.h>
16 #include <asm/mach-imx/boot_mode.h>
17 #include <asm/mach-imx/mxc_i2c.h>
18 #include <asm/mach-imx/spi.h>
19 #include <linux/errno.h>
20 #include <asm/gpio.h>
21 #include <mmc.h>
22 #include <i2c.h>
23 #include <fsl_esdhc.h>
24 #include <nand.h>
25 #include <miiphy.h>
26 #include <netdev.h>
27 #include <asm/arch/sys_proto.h>
28 #include <asm/sections.h>
29
30 DECLARE_GLOBAL_DATA_PTR;
31
32 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
33 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
34 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
35
36 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
37 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
38 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
39
40 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
41 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
42
43 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
44 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
45
46 #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
47 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
48 PAD_CTL_ODE | PAD_CTL_SRE_FAST)
49
50 #define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
51
52 #define ASRC_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
53 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
54
55 #define NAND_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
56 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
57
58 #define ENET_PHY_RESET_GPIO IMX_GPIO_NR(1, 14)
59 #define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4)
60 #define GREEN_LED IMX_GPIO_NR(2, 31)
61 #define RED_LED IMX_GPIO_NR(1, 30)
62 #define IMX6Q_DRIVE_STRENGTH 0x30
63
64 int dram_init(void)
65 {
66 gd->ram_size = imx_ddr_size();
67 return 0;
68 }
69
70 static iomux_v3_cfg_t const uart4_pads[] = {
71 IOMUX_PADS(PAD_KEY_COL0__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
72 IOMUX_PADS(PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
73 };
74
75 static iomux_v3_cfg_t const enet_pads[] = {
76 IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)),
77 IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
78 IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
79 IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
80 IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
81 IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
82 IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
83 IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL |
84 MUX_PAD_CTRL(ENET_PAD_CTRL)),
85 IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK |
86 MUX_PAD_CTRL(ENET_PAD_CTRL)),
87 IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
88 IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
89 IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
90 IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
91 IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
92 IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL |
93 MUX_PAD_CTRL(ENET_PAD_CTRL)),
94 IOMUX_PADS(PAD_SD2_DAT1__GPIO1_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL)),
95 };
96
97 static iomux_v3_cfg_t const ecspi3_pads[] = {
98 IOMUX_PADS(PAD_DISP0_DAT0__ECSPI3_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL)),
99 IOMUX_PADS(PAD_DISP0_DAT1__ECSPI3_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL)),
100 IOMUX_PADS(PAD_DISP0_DAT2__ECSPI3_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL)),
101 IOMUX_PADS(PAD_DISP0_DAT3__GPIO4_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL)),
102 };
103
104 static iomux_v3_cfg_t const gpios_pads[] = {
105 IOMUX_PADS(PAD_SD4_DAT3__GPIO2_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL)),
106 IOMUX_PADS(PAD_SD4_DAT4__GPIO2_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL)),
107 IOMUX_PADS(PAD_SD4_DAT5__GPIO2_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL)),
108 IOMUX_PADS(PAD_SD4_DAT6__GPIO2_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL)),
109 IOMUX_PADS(PAD_SD4_DAT7__GPIO2_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL)),
110 IOMUX_PADS(PAD_EIM_EB3__GPIO2_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL)),
111 IOMUX_PADS(PAD_ENET_TXD0__GPIO1_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL)),
112 IOMUX_PADS(PAD_SD4_DAT3__GPIO2_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL)),
113 };
114
115 #ifdef CONFIG_CMD_NAND
116 /* NAND */
117 static iomux_v3_cfg_t const nfc_pads[] = {
118 IOMUX_PADS(PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(NAND_PAD_CTRL)),
119 IOMUX_PADS(PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(NAND_PAD_CTRL)),
120 IOMUX_PADS(PAD_NANDF_WP_B__NAND_WP_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
121 IOMUX_PADS(PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
122 IOMUX_PADS(PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
123 IOMUX_PADS(PAD_NANDF_CS1__NAND_CE1_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
124 IOMUX_PADS(PAD_NANDF_CS2__NAND_CE2_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
125 IOMUX_PADS(PAD_NANDF_CS3__NAND_CE3_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
126 IOMUX_PADS(PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
127 IOMUX_PADS(PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
128 IOMUX_PADS(PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
129 IOMUX_PADS(PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
130 IOMUX_PADS(PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
131 IOMUX_PADS(PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
132 IOMUX_PADS(PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
133 IOMUX_PADS(PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
134 IOMUX_PADS(PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
135 IOMUX_PADS(PAD_NANDF_D7__NAND_DATA07 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
136 IOMUX_PADS(PAD_SD4_DAT0__NAND_DQS | MUX_PAD_CTRL(NAND_PAD_CTRL)),
137 };
138 #endif
139
140 static struct i2c_pads_info i2c_pad_info = {
141 .scl = {
142 .i2c_mode = MX6Q_PAD_EIM_D21__I2C1_SCL | I2C_PAD,
143 .gpio_mode = MX6Q_PAD_EIM_D21__GPIO3_IO21 | I2C_PAD,
144 .gp = IMX_GPIO_NR(3, 21)
145 },
146 .sda = {
147 .i2c_mode = MX6Q_PAD_EIM_D28__I2C1_SDA | I2C_PAD,
148 .gpio_mode = MX6Q_PAD_EIM_D28__GPIO3_IO28 | I2C_PAD,
149 .gp = IMX_GPIO_NR(3, 28)
150 }
151 };
152
153 static struct fsl_esdhc_cfg usdhc_cfg[] = {
154 {USDHC3_BASE_ADDR,
155 .max_bus_width = 4},
156 {.esdhc_base = USDHC2_BASE_ADDR,
157 .max_bus_width = 4},
158 };
159
160 #if !defined(CONFIG_SPL_BUILD)
161 static iomux_v3_cfg_t const usdhc2_pads[] = {
162 IOMUX_PADS(PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
163 IOMUX_PADS(PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
164 IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
165 IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
166 IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
167 IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
168 IOMUX_PADS(PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL)),
169 IOMUX_PADS(PAD_GPIO_4__GPIO1_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL)),
170 };
171 #endif
172
173 static iomux_v3_cfg_t const usdhc3_pads[] = {
174 IOMUX_PADS(PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
175 IOMUX_PADS(PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
176 IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
177 IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
178 IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
179 IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
180 IOMUX_PADS(PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
181 IOMUX_PADS(PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
182 IOMUX_PADS(PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
183 IOMUX_PADS(PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
184 };
185
186 int board_mmc_get_env_dev(int devno)
187 {
188 return devno - 1;
189 }
190
191 int board_mmc_getcd(struct mmc *mmc)
192 {
193 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
194 int ret = 0;
195
196 switch (cfg->esdhc_base) {
197 case USDHC2_BASE_ADDR:
198 ret = !gpio_get_value(USDHC2_CD_GPIO);
199 ret = 1;
200 break;
201 case USDHC3_BASE_ADDR:
202 ret = 1;
203 break;
204 }
205
206 return ret;
207 }
208
209 #ifndef CONFIG_SPL_BUILD
210 int board_mmc_init(bd_t *bis)
211 {
212 int ret;
213 int i;
214
215 for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
216 switch (i) {
217 case 0:
218 SETUP_IOMUX_PADS(usdhc3_pads);
219 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
220 break;
221 case 1:
222 SETUP_IOMUX_PADS(usdhc2_pads);
223 gpio_direction_input(USDHC2_CD_GPIO);
224 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
225 break;
226 default:
227 printf("Warning: you configured more USDHC controllers"
228 "(%d) then supported by the board (%d)\n",
229 i + 1, CONFIG_SYS_FSL_USDHC_NUM);
230 return -EINVAL;
231 }
232
233 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
234 if (ret)
235 return ret;
236 }
237
238 return 0;
239 }
240 #endif
241
242 static void setup_iomux_uart(void)
243 {
244 SETUP_IOMUX_PADS(uart4_pads);
245 }
246
247 static void setup_iomux_enet(void)
248 {
249 SETUP_IOMUX_PADS(enet_pads);
250
251 gpio_direction_output(ENET_PHY_RESET_GPIO, 0);
252 mdelay(10);
253 gpio_set_value(ENET_PHY_RESET_GPIO, 1);
254 mdelay(30);
255 }
256
257 static void setup_spi(void)
258 {
259 gpio_request(IMX_GPIO_NR(4, 24), "spi_cs0");
260 gpio_direction_output(IMX_GPIO_NR(4, 24), 1);
261
262 SETUP_IOMUX_PADS(ecspi3_pads);
263
264 enable_spi_clk(true, 2);
265 }
266
267 static void setup_gpios(void)
268 {
269 SETUP_IOMUX_PADS(gpios_pads);
270 }
271
272 #ifdef CONFIG_CMD_NAND
273 static void setup_gpmi_nand(void)
274 {
275 struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
276
277 /* config gpmi nand iomux */
278 SETUP_IOMUX_PADS(nfc_pads);
279
280 /* gate ENFC_CLK_ROOT clock first,before clk source switch */
281 clrbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
282
283 /* config gpmi and bch clock to 100 MHz */
284 clrsetbits_le32(&mxc_ccm->cs2cdr,
285 MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK |
286 MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK |
287 MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK,
288 MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
289 MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
290 MXC_CCM_CS2CDR_ENFC_CLK_SEL(3));
291
292 /* enable ENFC_CLK_ROOT clock */
293 setbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
294
295 /* enable gpmi and bch clock gating */
296 setbits_le32(&mxc_ccm->CCGR4,
297 MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
298 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
299 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
300 MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
301 MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_OFFSET);
302
303 /* enable apbh clock gating */
304 setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
305 }
306 #endif
307
308 /*
309 * Board revision is coded in 4 GPIOs
310 */
311 u32 get_board_rev(void)
312 {
313 u32 rev;
314 int i;
315
316 for (i = 0, rev = 0; i < 4; i++)
317 rev |= (gpio_get_value(IMX_GPIO_NR(2, 12 + i)) << i);
318
319 return 16 - rev;
320 }
321
322 int board_spi_cs_gpio(unsigned bus, unsigned cs)
323 {
324 if (bus != 2 || (cs != 0))
325 return -EINVAL;
326
327 return IMX_GPIO_NR(4, 24);
328 }
329
330 int board_eth_init(bd_t *bis)
331 {
332 setup_iomux_enet();
333
334 return cpu_eth_init(bis);
335 }
336
337 int board_early_init_f(void)
338 {
339 setup_iomux_uart();
340
341 return 0;
342 }
343
344 int board_init(void)
345 {
346 /* address of boot parameters */
347 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
348
349 #ifdef CONFIG_SYS_I2C_MXC
350 setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info);
351 #endif
352
353 #ifdef CONFIG_MXC_SPI
354 setup_spi();
355 #endif
356
357 setup_gpios();
358
359 #ifdef CONFIG_CMD_NAND
360 setup_gpmi_nand();
361 #endif
362 return 0;
363 }
364
365
366 #ifdef CONFIG_CMD_BMODE
367 /*
368 * BOOT_CFG1, BOOT_CFG2, BOOT_CFG3, BOOT_CFG4
369 * see Table 8-11 and Table 5-9
370 * BOOT_CFG1[7] = 1 (boot from NAND)
371 * BOOT_CFG1[5] = 0 - raw NAND
372 * BOOT_CFG1[4] = 0 - default pad settings
373 * BOOT_CFG1[3:2] = 00 - devices = 1
374 * BOOT_CFG1[1:0] = 00 - Row Address Cycles = 3
375 * BOOT_CFG2[4:3] = 00 - Boot Search Count = 2
376 * BOOT_CFG2[2:1] = 01 - Pages In Block = 64
377 * BOOT_CFG2[0] = 0 - Reset time 12ms
378 */
379 static const struct boot_mode board_boot_modes[] = {
380 /* NAND: 64pages per block, 3 row addr cycles, 2 copies of FCB/DBBT */
381 {"nand", MAKE_CFGVAL(0x80, 0x02, 0x00, 0x00)},
382 {"mmc0", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)},
383 {NULL, 0},
384 };
385 #endif
386
387 int board_late_init(void)
388 {
389 char buf[10];
390 #ifdef CONFIG_CMD_BMODE
391 add_board_boot_modes(board_boot_modes);
392 #endif
393
394 snprintf(buf, sizeof(buf), "%d", get_board_rev());
395 env_set("board_rev", buf);
396
397 return 0;
398 }
399
400 #ifdef CONFIG_SPL_BUILD
401 #include <asm/arch/mx6-ddr.h>
402 #include <spl.h>
403 #include <libfdt.h>
404
405 #define MX6_PHYFLEX_ERR006282 IMX_GPIO_NR(2, 11)
406 static void phyflex_err006282_workaround(void)
407 {
408 /*
409 * Boards beginning with 1362.2 have the SD4_DAT3 pin connected
410 * to the CMIC. If this pin isn't toggled within 10s the boards
411 * reset. The pin is unconnected on older boards, so we do not
412 * need a check for older boards before applying this fixup.
413 */
414
415 gpio_direction_output(MX6_PHYFLEX_ERR006282, 0);
416 mdelay(2);
417 gpio_direction_output(MX6_PHYFLEX_ERR006282, 1);
418 mdelay(2);
419 gpio_set_value(MX6_PHYFLEX_ERR006282, 0);
420
421 gpio_direction_input(MX6_PHYFLEX_ERR006282);
422 }
423
424 static const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
425 .dram_sdclk_0 = 0x00000030,
426 .dram_sdclk_1 = 0x00000030,
427 .dram_cas = 0x00000030,
428 .dram_ras = 0x00000030,
429 .dram_reset = 0x00000030,
430 .dram_sdcke0 = 0x00003000,
431 .dram_sdcke1 = 0x00003000,
432 .dram_sdba2 = 0x00000030,
433 .dram_sdodt0 = 0x00000030,
434 .dram_sdodt1 = 0x00000030,
435
436 .dram_sdqs0 = 0x00000028,
437 .dram_sdqs1 = 0x00000028,
438 .dram_sdqs2 = 0x00000028,
439 .dram_sdqs3 = 0x00000028,
440 .dram_sdqs4 = 0x00000028,
441 .dram_sdqs5 = 0x00000028,
442 .dram_sdqs6 = 0x00000028,
443 .dram_sdqs7 = 0x00000028,
444 .dram_dqm0 = 0x00000028,
445 .dram_dqm1 = 0x00000028,
446 .dram_dqm2 = 0x00000028,
447 .dram_dqm3 = 0x00000028,
448 .dram_dqm4 = 0x00000028,
449 .dram_dqm5 = 0x00000028,
450 .dram_dqm6 = 0x00000028,
451 .dram_dqm7 = 0x00000028,
452 };
453
454 static const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
455 .grp_ddr_type = 0x000C0000,
456 .grp_ddrmode_ctl = 0x00020000,
457 .grp_ddrpke = 0x00000000,
458 .grp_addds = IMX6Q_DRIVE_STRENGTH,
459 .grp_ctlds = IMX6Q_DRIVE_STRENGTH,
460 .grp_ddrmode = 0x00020000,
461 .grp_b0ds = 0x00000028,
462 .grp_b1ds = 0x00000028,
463 .grp_b2ds = 0x00000028,
464 .grp_b3ds = 0x00000028,
465 .grp_b4ds = 0x00000028,
466 .grp_b5ds = 0x00000028,
467 .grp_b6ds = 0x00000028,
468 .grp_b7ds = 0x00000028,
469 };
470
471 static const struct mx6_mmdc_calibration mx6_mmcd_calib = {
472 .p0_mpwldectrl0 = 0x00110011,
473 .p0_mpwldectrl1 = 0x00240024,
474 .p1_mpwldectrl0 = 0x00260038,
475 .p1_mpwldectrl1 = 0x002C0038,
476 .p0_mpdgctrl0 = 0x03400350,
477 .p0_mpdgctrl1 = 0x03440340,
478 .p1_mpdgctrl0 = 0x034C0354,
479 .p1_mpdgctrl1 = 0x035C033C,
480 .p0_mprddlctl = 0x322A2A2A,
481 .p1_mprddlctl = 0x302C2834,
482 .p0_mpwrdlctl = 0x34303834,
483 .p1_mpwrdlctl = 0x422A3E36,
484 };
485
486 /* Index in RAM Chip array */
487 enum {
488 RAM_1GB,
489 RAM_2GB,
490 RAM_4GB
491 };
492
493 static struct mx6_ddr3_cfg mt41k_xx[] = {
494 /* MT41K64M16JT-125 (1Gb density) */
495 {
496 .mem_speed = 1600,
497 .density = 1,
498 .width = 16,
499 .banks = 8,
500 .rowaddr = 13,
501 .coladdr = 10,
502 .pagesz = 2,
503 .trcd = 1375,
504 .trcmin = 4875,
505 .trasmin = 3500,
506 .SRT = 1,
507 },
508
509 /* MT41K256M16JT-125 (2Gb density) */
510 {
511 .mem_speed = 1600,
512 .density = 2,
513 .width = 16,
514 .banks = 8,
515 .rowaddr = 14,
516 .coladdr = 10,
517 .pagesz = 2,
518 .trcd = 1375,
519 .trcmin = 4875,
520 .trasmin = 3500,
521 .SRT = 1,
522 },
523
524 /* MT41K256M16JT-125 (4Gb density) */
525 {
526 .mem_speed = 1600,
527 .density = 4,
528 .width = 16,
529 .banks = 8,
530 .rowaddr = 15,
531 .coladdr = 10,
532 .pagesz = 2,
533 .trcd = 1375,
534 .trcmin = 4875,
535 .trasmin = 3500,
536 .SRT = 1,
537 }
538 };
539
540 static void ccgr_init(void)
541 {
542 struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
543
544 writel(0x00C03F3F, &ccm->CCGR0);
545 writel(0x0030FC03, &ccm->CCGR1);
546 writel(0x0FFFC000, &ccm->CCGR2);
547 writel(0x3FF00000, &ccm->CCGR3);
548 writel(0x00FFF300, &ccm->CCGR4);
549 writel(0x0F0000C3, &ccm->CCGR5);
550 writel(0x000003FF, &ccm->CCGR6);
551 }
552
553 static void gpr_init(void)
554 {
555 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
556
557 /* enable AXI cache for VDOA/VPU/IPU */
558 writel(0xF00000CF, &iomux->gpr[4]);
559 /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
560 writel(0x007F007F, &iomux->gpr[6]);
561 writel(0x007F007F, &iomux->gpr[7]);
562 }
563
564 static void spl_dram_init(struct mx6_ddr3_cfg *mem_ddr)
565 {
566 struct mx6_ddr_sysinfo sysinfo = {
567 /* width of data bus:0=16,1=32,2=64 */
568 .dsize = 2,
569 /* config for full 4GB range so that get_mem_size() works */
570 .cs_density = 32, /* 32Gb per CS */
571 /* single chip select */
572 .ncs = 2,
573 .cs1_mirror = 0,
574 .rtt_wr = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Wr = RZQ/4 */
575 .rtt_nom = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Nom = RZQ/4 */
576 .walat = 1, /* Write additional latency */
577 .ralat = 5, /* Read additional latency */
578 .mif3_mode = 3, /* Command prediction working mode */
579 .bi_on = 1, /* Bank interleaving enabled */
580 .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
581 .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
582 .ddr_type = DDR_TYPE_DDR3,
583 .refsel = 1, /* Refresh cycles at 32KHz */
584 .refr = 7, /* 8 refresh commands per refresh cycle */
585 };
586
587 mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
588 mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, mem_ddr);
589 }
590
591 int board_mmc_init(bd_t *bis)
592 {
593 if (spl_boot_device() == BOOT_DEVICE_SPI)
594 printf("MMC SEtup, Boot SPI");
595
596 SETUP_IOMUX_PADS(usdhc3_pads);
597 usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
598 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
599 usdhc_cfg[0].max_bus_width = 4;
600 gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
601
602 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
603 }
604
605
606 void board_boot_order(u32 *spl_boot_list)
607 {
608 spl_boot_list[0] = spl_boot_device();
609 printf("Boot device %x\n", spl_boot_list[0]);
610 switch (spl_boot_list[0]) {
611 case BOOT_DEVICE_SPI:
612 spl_boot_list[1] = BOOT_DEVICE_UART;
613 break;
614 case BOOT_DEVICE_MMC1:
615 spl_boot_list[1] = BOOT_DEVICE_SPI;
616 spl_boot_list[2] = BOOT_DEVICE_UART;
617 break;
618 default:
619 printf("Boot device %x\n", spl_boot_list[0]);
620 }
621 }
622
623 /*
624 * This is used because get_ram_size() does not
625 * take care of cache, resulting a wrong size
626 * pfla02 has just 1, 2 or 4 GB option
627 * Function checks for mirrors in the first CS
628 */
629 #define RAM_TEST_PATTERN 0xaa5555aa
630 static unsigned int pfla02_detect_ramsize(void)
631 {
632 u32 *p, *p1;
633 unsigned int offset = 512 * 1024 * 1024;
634 int i;
635
636 for (i = 0; i < 2; i++) {
637 p = (u32 *)PHYS_SDRAM;
638 p1 = (u32 *)(PHYS_SDRAM + (i + 1) * offset);
639
640 *p1 = 0;
641 *p = RAM_TEST_PATTERN;
642
643 /*
644 * This is required to detect mirroring
645 * else we read back values from cache
646 */
647 flush_dcache_all();
648
649 if (*p == *p1)
650 return i;
651 }
652 return RAM_4GB;
653 }
654
655 void board_init_f(ulong dummy)
656 {
657 unsigned int ramchip;
658 #ifdef CONFIG_CMD_NAND
659 /* Enable NAND */
660 setup_gpmi_nand();
661 #endif
662
663 /* setup clock gating */
664 ccgr_init();
665
666 /* setup AIPS and disable watchdog */
667 arch_cpu_init();
668
669 /* setup AXI */
670 gpr_init();
671
672 board_early_init_f();
673
674 /* setup GP timer */
675 timer_init();
676
677 /* UART clocks enabled and gd valid - init serial console */
678 preloader_console_init();
679
680 setup_spi();
681
682 setup_gpios();
683
684 /* DDR initialization */
685 spl_dram_init(&mt41k_xx[RAM_4GB]);
686 ramchip = pfla02_detect_ramsize();
687 if (ramchip != RAM_4GB)
688 spl_dram_init(&mt41k_xx[ramchip]);
689
690 /* Clear the BSS. */
691 memset(__bss_start, 0, __bss_end - __bss_start);
692
693 phyflex_err006282_workaround();
694
695 /* load/boot image from boot device */
696 board_init_r(NULL, 0);
697 }
698 #endif
"Das U-Boot" Source Tree