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Kconfig: Add CONFIG_SATA to enable SATA
[people/ms/u-boot.git] / board / udoo / udoo.c
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1/*
2 * Copyright (C) 2013 Freescale Semiconductor, Inc.
3 *
4 * Author: Fabio Estevam <fabio.estevam@freescale.com>
5 *
6 * SPDX-License-Identifier: GPL-2.0+
7 */
8
9#include <asm/arch/clock.h>
10#include <asm/arch/imx-regs.h>
11#include <asm/arch/iomux.h>
078813d2 12#include <malloc.h>
0c5e2667 13#include <asm/arch/mx6-pins.h>
1221ce45 14#include <linux/errno.h>
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15#include <asm/gpio.h>
16#include <asm/imx-common/iomux-v3.h>
98d01229 17#include <asm/imx-common/sata.h>
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18#include <mmc.h>
19#include <fsl_esdhc.h>
20#include <asm/arch/crm_regs.h>
21#include <asm/io.h>
22#include <asm/arch/sys_proto.h>
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23#include <micrel.h>
24#include <miiphy.h>
25#include <netdev.h>
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26
27DECLARE_GLOBAL_DATA_PTR;
28
29#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
30 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
31 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
32
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33#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
34 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
35
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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 WDT_EN IMX_GPIO_NR(5, 4)
41#define WDT_TRG IMX_GPIO_NR(3, 19)
42
43int dram_init(void)
44{
78506c2f 45 gd->ram_size = imx_ddr_size();
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46
47 return 0;
48}
49
50static iomux_v3_cfg_t const uart2_pads[] = {
78506c2f 51 IOMUX_PADS(PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
52 IOMUX_PADS(PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
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53};
54
55static iomux_v3_cfg_t const usdhc3_pads[] = {
78506c2f 56 IOMUX_PADS(PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
57 IOMUX_PADS(PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
58 IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
59 IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
60 IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
61 IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
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62};
63
64static iomux_v3_cfg_t const wdog_pads[] = {
78506c2f 65 IOMUX_PADS(PAD_EIM_A24__GPIO5_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL)),
66 IOMUX_PADS(PAD_EIM_D19__GPIO3_IO19),
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67};
68
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69int mx6_rgmii_rework(struct phy_device *phydev)
70{
71 /*
72 * Bug: Apparently uDoo does not works with Gigabit switches...
73 * Limiting speed to 10/100Mbps, and setting master mode, seems to
74 * be the only way to have a successfull PHY auto negotiation.
75 * How to fix: Understand why Linux kernel do not have this issue.
76 */
77 phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, 0x1c00);
78
79 /* control data pad skew - devaddr = 0x02, register = 0x04 */
80 ksz9031_phy_extended_write(phydev, 0x02,
81 MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
82 MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
83 /* rx data pad skew - devaddr = 0x02, register = 0x05 */
84 ksz9031_phy_extended_write(phydev, 0x02,
85 MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
86 MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
87 /* tx data pad skew - devaddr = 0x02, register = 0x05 */
88 ksz9031_phy_extended_write(phydev, 0x02,
89 MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
90 MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
91 /* gtx and rx clock pad skew - devaddr = 0x02, register = 0x08 */
92 ksz9031_phy_extended_write(phydev, 0x02,
93 MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
94 MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x03FF);
95 return 0;
96}
97
98static iomux_v3_cfg_t const enet_pads1[] = {
78506c2f 99 IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)),
100 IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
101 IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
102 IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
103 IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
104 IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
105 IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
106 IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
107 IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL)),
108 IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
078813d2 109 /* RGMII reset */
78506c2f 110 IOMUX_PADS(PAD_EIM_D23__GPIO3_IO23 | MUX_PAD_CTRL(NO_PAD_CTRL)),
078813d2 111 /* Ethernet power supply */
78506c2f 112 IOMUX_PADS(PAD_EIM_EB3__GPIO2_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL)),
078813d2 113 /* pin 32 - 1 - (MODE0) all */
78506c2f 114 IOMUX_PADS(PAD_RGMII_RD0__GPIO6_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL)),
078813d2 115 /* pin 31 - 1 - (MODE1) all */
78506c2f 116 IOMUX_PADS(PAD_RGMII_RD1__GPIO6_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL)),
078813d2 117 /* pin 28 - 1 - (MODE2) all */
78506c2f 118 IOMUX_PADS(PAD_RGMII_RD2__GPIO6_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL)),
078813d2 119 /* pin 27 - 1 - (MODE3) all */
78506c2f 120 IOMUX_PADS(PAD_RGMII_RD3__GPIO6_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL)),
078813d2 121 /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
78506c2f 122 IOMUX_PADS(PAD_RGMII_RX_CTL__GPIO6_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL)),
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123};
124
125static iomux_v3_cfg_t const enet_pads2[] = {
78506c2f 126 IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
127 IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
128 IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
129 IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
130 IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
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131};
132
133static void setup_iomux_enet(void)
134{
78506c2f 135 SETUP_IOMUX_PADS(enet_pads1);
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136 udelay(20);
137 gpio_direction_output(IMX_GPIO_NR(2, 31), 1); /* Power supply on */
138
139 gpio_direction_output(IMX_GPIO_NR(3, 23), 0); /* assert PHY rst */
140
141 gpio_direction_output(IMX_GPIO_NR(6, 24), 1);
142 gpio_direction_output(IMX_GPIO_NR(6, 25), 1);
143 gpio_direction_output(IMX_GPIO_NR(6, 27), 1);
144 gpio_direction_output(IMX_GPIO_NR(6, 28), 1);
145 gpio_direction_output(IMX_GPIO_NR(6, 29), 1);
146 udelay(1000);
147
148 gpio_set_value(IMX_GPIO_NR(3, 23), 1); /* deassert PHY rst */
149
150 /* Need 100ms delay to exit from reset. */
151 udelay(1000 * 100);
152
153 gpio_free(IMX_GPIO_NR(6, 24));
154 gpio_free(IMX_GPIO_NR(6, 25));
155 gpio_free(IMX_GPIO_NR(6, 27));
156 gpio_free(IMX_GPIO_NR(6, 28));
157 gpio_free(IMX_GPIO_NR(6, 29));
158
78506c2f 159 SETUP_IOMUX_PADS(enet_pads2);
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160}
161
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162static void setup_iomux_uart(void)
163{
78506c2f 164 SETUP_IOMUX_PADS(uart2_pads);
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165}
166
167static void setup_iomux_wdog(void)
168{
78506c2f 169 SETUP_IOMUX_PADS(wdog_pads);
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170 gpio_direction_output(WDT_TRG, 0);
171 gpio_direction_output(WDT_EN, 1);
db6801de 172 gpio_direction_input(WDT_TRG);
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173}
174
175static struct fsl_esdhc_cfg usdhc_cfg = { USDHC3_BASE_ADDR };
176
177int board_mmc_getcd(struct mmc *mmc)
178{
179 return 1; /* Always present */
180}
181
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182int board_eth_init(bd_t *bis)
183{
184 uint32_t base = IMX_FEC_BASE;
185 struct mii_dev *bus = NULL;
186 struct phy_device *phydev = NULL;
187 int ret;
188
189 setup_iomux_enet();
190
191#ifdef CONFIG_FEC_MXC
192 bus = fec_get_miibus(base, -1);
193 if (!bus)
84c311f2 194 return -EINVAL;
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195 /* scan phy 4,5,6,7 */
196 phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII);
197
198 if (!phydev) {
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199 ret = -EINVAL;
200 goto free_bus;
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201 }
202 printf("using phy at %d\n", phydev->addr);
203 ret = fec_probe(bis, -1, base, bus, phydev);
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204 if (ret)
205 goto free_phydev;
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206#endif
207 return 0;
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208
209free_phydev:
210 free(phydev);
211free_bus:
212 free(bus);
213 return ret;
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214}
215
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216int board_mmc_init(bd_t *bis)
217{
78506c2f 218 SETUP_IOMUX_PADS(usdhc3_pads);
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219 usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
220 usdhc_cfg.max_bus_width = 4;
221
222 return fsl_esdhc_initialize(bis, &usdhc_cfg);
223}
224
225int board_early_init_f(void)
226{
227 setup_iomux_wdog();
228 setup_iomux_uart();
229
230 return 0;
231}
232
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233int board_phy_config(struct phy_device *phydev)
234{
235 mx6_rgmii_rework(phydev);
236 if (phydev->drv->config)
237 phydev->drv->config(phydev);
238
239 return 0;
240}
241
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242int board_init(void)
243{
244 /* address of boot parameters */
245 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
246
10e40d54 247#ifdef CONFIG_SATA
78506c2f 248 if (is_cpu_type(MXC_CPU_MX6Q))
249 setup_sata();
250#endif
251 return 0;
252}
253
254int board_late_init(void)
255{
256#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
257 if (is_cpu_type(MXC_CPU_MX6Q))
258 setenv("board_rev", "MX6Q");
259 else
260 setenv("board_rev", "MX6DL");
98d01229 261#endif
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262 return 0;
263}
264
265int checkboard(void)
266{
78506c2f 267 if (is_cpu_type(MXC_CPU_MX6Q))
268 puts("Board: Udoo Quad\n");
269 else
270 puts("Board: Udoo DualLite\n");
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271
272 return 0;
273}