1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2013 Stefan Roese <sr@denx.de>
4 */
5
6 #include <common.h>
7 #include <asm/io.h>
8 #include <asm/arch/clock.h>
9 #include <asm/arch/imx-regs.h>
10 #include <asm/arch/iomux.h>
11 #include <asm/arch/mx6-pins.h>
12 #include <asm/arch/crm_regs.h>
13 #include <asm/arch/sys_proto.h>
14 #include <asm/gpio.h>
15 #include <asm/mach-imx/iomux-v3.h>
16 #include <asm/mach-imx/mxc_i2c.h>
17 #include <asm/mach-imx/boot_mode.h>
18 #include <mmc.h>
19 #include <fsl_esdhc_imx.h>
20 #include <micrel.h>
21 #include <miiphy.h>
22 #include <netdev.h>
23
24 DECLARE_GLOBAL_DATA_PTR;
25
26 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
27 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
28
29 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
30 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
31
32 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
33 PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
34
35 #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
36 PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
37 PAD_CTL_ODE | PAD_CTL_SRE_FAST)
38
dram_init(void)39 int dram_init(void)
40 {
41 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
42
43 return 0;
44 }
45
46 iomux_v3_cfg_t const uart1_pads[] = {
47 MX6_PAD_SD3_DAT6__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
48 MX6_PAD_SD3_DAT7__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
49 };
50
51 iomux_v3_cfg_t const uart2_pads[] = {
52 MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
53 MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
54 };
55
56 iomux_v3_cfg_t const uart4_pads[] = {
57 MX6_PAD_CSI0_DAT12__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
58 MX6_PAD_CSI0_DAT13__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
59 };
60
61 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
62
63 struct i2c_pads_info i2c_pad_info0 = {
64 .scl = {
65 .i2c_mode = MX6_PAD_CSI0_DAT9__I2C1_SCL | PC,
66 .gpio_mode = MX6_PAD_CSI0_DAT9__GPIO5_IO27 | PC,
67 .gp = IMX_GPIO_NR(5, 27)
68 },
69 .sda = {
70 .i2c_mode = MX6_PAD_CSI0_DAT8__I2C1_SDA | PC,
71 .gpio_mode = MX6_PAD_CSI0_DAT8__GPIO5_IO26 | PC,
72 .gp = IMX_GPIO_NR(5, 26)
73 }
74 };
75
76 struct i2c_pads_info i2c_pad_info2 = {
77 .scl = {
78 .i2c_mode = MX6_PAD_GPIO_3__I2C3_SCL | PC,
79 .gpio_mode = MX6_PAD_GPIO_3__GPIO1_IO03 | PC,
80 .gp = IMX_GPIO_NR(1, 3)
81 },
82 .sda = {
83 .i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | PC,
84 .gpio_mode = MX6_PAD_GPIO_16__GPIO7_IO11 | PC,
85 .gp = IMX_GPIO_NR(7, 11)
86 }
87 };
88
89 iomux_v3_cfg_t const usdhc3_pads[] = {
90 MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
91 MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
92 MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
93 MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
94 MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
95 MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
96 MX6_PAD_SD3_DAT5__GPIO7_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
97 };
98
99 iomux_v3_cfg_t const enet_pads1[] = {
100 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
101 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
102 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
103 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
104 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
105 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
106 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
107 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
108 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
109 /* pin 35 - 1 (PHY_AD2) on reset */
110 MX6_PAD_RGMII_RXC__GPIO6_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL),
111 /* pin 32 - 1 - (MODE0) all */
112 MX6_PAD_RGMII_RD0__GPIO6_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL),
113 /* pin 31 - 1 - (MODE1) all */
114 MX6_PAD_RGMII_RD1__GPIO6_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL),
115 /* pin 28 - 1 - (MODE2) all */
116 MX6_PAD_RGMII_RD2__GPIO6_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL),
117 /* pin 27 - 1 - (MODE3) all */
118 MX6_PAD_RGMII_RD3__GPIO6_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
119 /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
120 MX6_PAD_RGMII_RX_CTL__GPIO6_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL),
121 /* pin 42 PHY nRST */
122 MX6_PAD_EIM_D23__GPIO3_IO23 | MUX_PAD_CTRL(NO_PAD_CTRL),
123 };
124
125 iomux_v3_cfg_t const enet_pads2[] = {
126 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
127 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
128 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
129 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
130 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
131 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
132 };
133
134 iomux_v3_cfg_t nfc_pads[] = {
135 MX6_PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(NO_PAD_CTRL),
136 MX6_PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(NO_PAD_CTRL),
137 MX6_PAD_NANDF_WP_B__NAND_WP_B | MUX_PAD_CTRL(NO_PAD_CTRL),
138 MX6_PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NO_PAD_CTRL),
139 MX6_PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(NO_PAD_CTRL),
140 MX6_PAD_NANDF_CS1__NAND_CE1_B | MUX_PAD_CTRL(NO_PAD_CTRL),
141 MX6_PAD_NANDF_CS2__NAND_CE2_B | MUX_PAD_CTRL(NO_PAD_CTRL),
142 MX6_PAD_NANDF_CS3__NAND_CE3_B | MUX_PAD_CTRL(NO_PAD_CTRL),
143 MX6_PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(NO_PAD_CTRL),
144 MX6_PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(NO_PAD_CTRL),
145 MX6_PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(NO_PAD_CTRL),
146 MX6_PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(NO_PAD_CTRL),
147 MX6_PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(NO_PAD_CTRL),
148 MX6_PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(NO_PAD_CTRL),
149 MX6_PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(NO_PAD_CTRL),
150 MX6_PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(NO_PAD_CTRL),
151 MX6_PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(NO_PAD_CTRL),
152 MX6_PAD_NANDF_D7__NAND_DATA07 | MUX_PAD_CTRL(NO_PAD_CTRL),
153 MX6_PAD_SD4_DAT0__NAND_DQS | MUX_PAD_CTRL(NO_PAD_CTRL),
154 };
155
setup_gpmi_nand(void)156 static void setup_gpmi_nand(void)
157 {
158 struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
159
160 /* config gpmi nand iomux */
161 imx_iomux_v3_setup_multiple_pads(nfc_pads,
162 ARRAY_SIZE(nfc_pads));
163
164 /* config gpmi and bch clock to 100 MHz */
165 clrsetbits_le32(&mxc_ccm->cs2cdr,
166 MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK |
167 MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK |
168 MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK,
169 MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
170 MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
171 MXC_CCM_CS2CDR_ENFC_CLK_SEL(3));
172
173 /* enable gpmi and bch clock gating */
174 setbits_le32(&mxc_ccm->CCGR4,
175 MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
176 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
177 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
178 MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
179 MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_OFFSET);
180
181 /* enable apbh clock gating */
182 setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
183 }
184
setup_iomux_enet(void)185 static void setup_iomux_enet(void)
186 {
187 gpio_direction_output(IMX_GPIO_NR(3, 23), 0);
188 gpio_direction_output(IMX_GPIO_NR(6, 30), 1);
189 gpio_direction_output(IMX_GPIO_NR(6, 25), 1);
190 gpio_direction_output(IMX_GPIO_NR(6, 27), 1);
191 gpio_direction_output(IMX_GPIO_NR(6, 28), 1);
192 gpio_direction_output(IMX_GPIO_NR(6, 29), 1);
193 imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1));
194 gpio_direction_output(IMX_GPIO_NR(6, 24), 1);
195
196 /* Need delay 10ms according to KSZ9021 spec */
197 udelay(1000 * 10);
198 gpio_set_value(IMX_GPIO_NR(3, 23), 1);
199
200 imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
201 }
202
setup_iomux_uart(void)203 static void setup_iomux_uart(void)
204 {
205 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
206 imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
207 imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
208 }
209
210 #ifdef CONFIG_USB_EHCI_MX6
board_ehci_hcd_init(int port)211 int board_ehci_hcd_init(int port)
212 {
213 return 0;
214 }
215
216 #endif
217
218 #ifdef CONFIG_FSL_ESDHC_IMX
219 struct fsl_esdhc_cfg usdhc_cfg[1] = {
220 { USDHC3_BASE_ADDR },
221 };
222
board_mmc_getcd(struct mmc * mmc)223 int board_mmc_getcd(struct mmc *mmc)
224 {
225 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
226
227 if (cfg->esdhc_base == USDHC3_BASE_ADDR) {
228 gpio_direction_input(IMX_GPIO_NR(7, 0));
229 return !gpio_get_value(IMX_GPIO_NR(7, 0));
230 }
231
232 return 0;
233 }
234
board_mmc_init(bd_t * bis)235 int board_mmc_init(bd_t *bis)
236 {
237 /*
238 * Only one USDHC controller on titianium
239 */
240 imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
241 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
242
243 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
244 }
245 #endif
246
board_phy_config(struct phy_device * phydev)247 int board_phy_config(struct phy_device *phydev)
248 {
249 /* min rx data delay */
250 ksz9021_phy_extended_write(phydev,
251 MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x0);
252 /* min tx data delay */
253 ksz9021_phy_extended_write(phydev,
254 MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x0);
255 /* max rx/tx clock delay, min rx/tx control */
256 ksz9021_phy_extended_write(phydev,
257 MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf0f0);
258 if (phydev->drv->config)
259 phydev->drv->config(phydev);
260
261 return 0;
262 }
263
board_eth_init(bd_t * bis)264 int board_eth_init(bd_t *bis)
265 {
266 setup_iomux_enet();
267
268 return cpu_eth_init(bis);
269 }
270
board_early_init_f(void)271 int board_early_init_f(void)
272 {
273 setup_iomux_uart();
274
275 return 0;
276 }
277
board_init(void)278 int board_init(void)
279 {
280 /* address of boot parameters */
281 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
282
283 setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
284 setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
285
286 setup_gpmi_nand();
287
288 return 0;
289 }
290
checkboard(void)291 int checkboard(void)
292 {
293 puts("Board: Titanium\n");
294
295 return 0;
296 }
297
298 #ifdef CONFIG_CMD_BMODE
299 static const struct boot_mode board_boot_modes[] = {
300 /* NAND */
301 { "nand", MAKE_CFGVAL(0x80, 0x02, 0x00, 0x00) },
302 /* 4 bit bus width */
303 { "mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00) },
304 { "mmc1", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00) },
305 { NULL, 0 },
306 };
307 #endif
308
misc_init_r(void)309 int misc_init_r(void)
310 {
311 #ifdef CONFIG_CMD_BMODE
312 add_board_boot_modes(board_boot_modes);
313 #endif
314
315 return 0;
316 }
317