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Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Stefan Roese452308c2015-07-06 13:36:33 +02002/*
3 * Copyright (C) 2012 Freescale Semiconductor, Inc.
4 * Author: Fabio Estevam <fabio.estevam@freescale.com>
5 *
Matthias Schiffera5e30522021-11-02 11:36:46 +01006 * Copyright (C) 2013, 2014 TQ-Systems (ported SabreSD to TQMa6x)
Stefan Roese452308c2015-07-06 13:36:33 +02007 * Author: Markus Niebel <markus.niebel@tq-group.com>
8 *
9 * Copyright (C) 2015 Stefan Roese <sr@denx.de>
Stefan Roese452308c2015-07-06 13:36:33 +020010 */
11
Simon Glass52559322019-11-14 12:57:46 -070012#include <init.h>
Simon Glass90526e92020-05-10 11:39:56 -060013#include <net.h>
Stefan Roese452308c2015-07-06 13:36:33 +020014#include <asm/io.h>
15#include <asm/arch/clock.h>
16#include <asm/arch/mx6-pins.h>
17#include <asm/arch/imx-regs.h>
18#include <asm/arch/iomux.h>
19#include <asm/arch/sys_proto.h>
Simon Glassc05ed002020-05-10 11:40:11 -060020#include <linux/delay.h>
Masahiro Yamada1221ce42016-09-21 11:28:55 +090021#include <linux/errno.h>
Stefan Roese452308c2015-07-06 13:36:33 +020022#include <asm/gpio.h>
Stefano Babic552a8482017-06-29 10:16:06 +020023#include <asm/mach-imx/boot_mode.h>
24#include <asm/mach-imx/mxc_i2c.h>
Stefan Roese452308c2015-07-06 13:36:33 +020025
26#include <common.h>
Yangbo Lue37ac712019-06-21 11:42:28 +080027#include <fsl_esdhc_imx.h>
Masahiro Yamadab08c8c42018-03-05 01:20:11 +090028#include <linux/libfdt.h>
Stefan Roese452308c2015-07-06 13:36:33 +020029#include <malloc.h>
30#include <i2c.h>
Stefan Roese452308c2015-07-06 13:36:33 +020031#include <miiphy.h>
32#include <mmc.h>
33#include <netdev.h>
34
35#include "tqma6_bb.h"
36
37/* UART */
38#define UART4_PAD_CTRL ( \
39 PAD_CTL_HYS | \
40 PAD_CTL_PUS_100K_UP | \
41 PAD_CTL_PUE | \
42 PAD_CTL_PKE | \
43 PAD_CTL_SPEED_MED | \
44 PAD_CTL_DSE_40ohm | \
45 PAD_CTL_SRE_SLOW \
46 )
47
48static iomux_v3_cfg_t const uart4_pads[] = {
49 NEW_PAD_CTRL(MX6_PAD_CSI0_DAT17__UART4_CTS_B, UART4_PAD_CTRL),
50 NEW_PAD_CTRL(MX6_PAD_CSI0_DAT16__UART4_RTS_B, UART4_PAD_CTRL),
51 NEW_PAD_CTRL(MX6_PAD_CSI0_DAT13__UART4_RX_DATA, UART4_PAD_CTRL),
52 NEW_PAD_CTRL(MX6_PAD_CSI0_DAT12__UART4_TX_DATA, UART4_PAD_CTRL),
53};
54
55static void setup_iomuxc_uart4(void)
56{
57 imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
58}
59
60/* MMC */
61#define USDHC2_PAD_CTRL ( \
62 PAD_CTL_HYS | \
63 PAD_CTL_PUS_47K_UP | \
64 PAD_CTL_SPEED_LOW | \
65 PAD_CTL_DSE_80ohm | \
66 PAD_CTL_SRE_FAST \
67 )
68
69#define USDHC2_CLK_PAD_CTRL ( \
70 PAD_CTL_HYS | \
71 PAD_CTL_PUS_47K_UP | \
72 PAD_CTL_SPEED_LOW | \
73 PAD_CTL_DSE_40ohm | \
74 PAD_CTL_SRE_FAST \
75 )
76
77static iomux_v3_cfg_t const usdhc2_pads[] = {
78 NEW_PAD_CTRL(MX6_PAD_SD2_CLK__SD2_CLK, USDHC2_CLK_PAD_CTRL),
79 NEW_PAD_CTRL(MX6_PAD_SD2_CMD__SD2_CMD, USDHC2_PAD_CTRL),
80 NEW_PAD_CTRL(MX6_PAD_SD2_DAT0__SD2_DATA0, USDHC2_PAD_CTRL),
81 NEW_PAD_CTRL(MX6_PAD_SD2_DAT1__SD2_DATA1, USDHC2_PAD_CTRL),
82 NEW_PAD_CTRL(MX6_PAD_SD2_DAT2__SD2_DATA2, USDHC2_PAD_CTRL),
83 NEW_PAD_CTRL(MX6_PAD_SD2_DAT3__SD2_DATA3, USDHC2_PAD_CTRL),
84
85 NEW_PAD_CTRL(MX6_PAD_GPIO_4__GPIO1_IO04, USDHC2_PAD_CTRL), /* CD */
86 NEW_PAD_CTRL(MX6_PAD_GPIO_2__SD2_WP, USDHC2_PAD_CTRL), /* WP */
87};
88
89#define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4)
90#define USDHC2_WP_GPIO IMX_GPIO_NR(1, 2)
91
92static struct fsl_esdhc_cfg usdhc2_cfg = {
93 .esdhc_base = USDHC2_BASE_ADDR,
94 .max_bus_width = 4,
95};
96
97int tqma6_bb_board_mmc_getcd(struct mmc *mmc)
98{
99 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
100 int ret = 0;
101
102 if (cfg->esdhc_base == USDHC2_BASE_ADDR)
103 ret = !gpio_get_value(USDHC2_CD_GPIO);
104
105 return ret;
106}
107
108int tqma6_bb_board_mmc_getwp(struct mmc *mmc)
109{
110 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
111 int ret = 0;
112
113 if (cfg->esdhc_base == USDHC2_BASE_ADDR)
114 ret = gpio_get_value(USDHC2_WP_GPIO);
115
116 return ret;
117}
118
Masahiro Yamadab75d8dc2020-06-26 15:13:33 +0900119int tqma6_bb_board_mmc_init(struct bd_info *bis)
Stefan Roese452308c2015-07-06 13:36:33 +0200120{
121 int ret;
122
123 imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
124
125 ret = gpio_request(USDHC2_CD_GPIO, "mmc-cd");
126 if (!ret)
127 gpio_direction_input(USDHC2_CD_GPIO);
128 ret = gpio_request(USDHC2_WP_GPIO, "mmc-wp");
129 if (!ret)
130 gpio_direction_input(USDHC2_WP_GPIO);
131
132 usdhc2_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
133 if(fsl_esdhc_initialize(bis, &usdhc2_cfg))
134 puts("WARNING: failed to initialize SD\n");
135
136 return 0;
137}
138
139/* Ethernet */
140#define ENET_PAD_CTRL ( \
141 PAD_CTL_HYS | \
142 PAD_CTL_PUS_100K_UP | \
143 PAD_CTL_PUE | \
144 PAD_CTL_PKE | \
145 PAD_CTL_SPEED_MED | \
146 PAD_CTL_DSE_40ohm | \
147 PAD_CTL_SRE_SLOW \
148 )
149
150static iomux_v3_cfg_t const enet_pads[] = {
151 NEW_PAD_CTRL(MX6_PAD_ENET_MDC__ENET_MDC, ENET_PAD_CTRL),
152 NEW_PAD_CTRL(MX6_PAD_ENET_MDIO__ENET_MDIO, ENET_PAD_CTRL),
153 NEW_PAD_CTRL(MX6_PAD_GPIO_16__ENET_REF_CLK, ENET_PAD_CTRL),
154 NEW_PAD_CTRL(MX6_PAD_ENET_RXD0__ENET_RX_DATA0, ENET_PAD_CTRL),
155 NEW_PAD_CTRL(MX6_PAD_ENET_RXD1__ENET_RX_DATA1, ENET_PAD_CTRL),
156 NEW_PAD_CTRL(MX6_PAD_ENET_CRS_DV__ENET_RX_EN, ENET_PAD_CTRL),
157 NEW_PAD_CTRL(MX6_PAD_ENET_RX_ER__ENET_RX_ER, ENET_PAD_CTRL),
158 NEW_PAD_CTRL(MX6_PAD_ENET_TXD0__ENET_TX_DATA0, ENET_PAD_CTRL),
159 NEW_PAD_CTRL(MX6_PAD_ENET_TXD1__ENET_TX_DATA1, ENET_PAD_CTRL),
160 NEW_PAD_CTRL(MX6_PAD_ENET_TX_EN__ENET_TX_EN, ENET_PAD_CTRL),
161 NEW_PAD_CTRL(MX6_PAD_GPIO_19__ENET_TX_ER, ENET_PAD_CTRL),
162
163 /* ENET1 reset */
164 NEW_PAD_CTRL(MX6_PAD_GPIO_8__GPIO1_IO08, ENET_PAD_CTRL),
165 /* ENET1 interrupt */
166 NEW_PAD_CTRL(MX6_PAD_GPIO_9__GPIO1_IO09, ENET_PAD_CTRL),
167};
168
169#define ENET_PHY_RESET_GPIO IMX_GPIO_NR(1, 8)
170
171static void setup_iomuxc_enet(void)
172{
173 int ret;
174
175 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
176
177 /* Reset LAN8720 PHY */
178 ret = gpio_request(ENET_PHY_RESET_GPIO, "phy-reset");
179 if (!ret)
180 gpio_direction_output(ENET_PHY_RESET_GPIO , 0);
Fabio Estevam755a116e2016-02-01 11:19:59 -0200181 udelay(25000);
Stefan Roese452308c2015-07-06 13:36:33 +0200182 gpio_set_value(ENET_PHY_RESET_GPIO, 1);
183}
184
Masahiro Yamadab75d8dc2020-06-26 15:13:33 +0900185int board_eth_init(struct bd_info *bis)
Stefan Roese452308c2015-07-06 13:36:33 +0200186{
187 return cpu_eth_init(bis);
188}
189
190/* GPIO */
191#define GPIO_PAD_CTRL ( \
192 PAD_CTL_HYS | \
193 PAD_CTL_PUS_100K_UP | \
194 PAD_CTL_PUE | \
195 PAD_CTL_SPEED_MED | \
196 PAD_CTL_DSE_40ohm | \
197 PAD_CTL_SRE_SLOW \
198 )
199
200#define GPIO_OD_PAD_CTRL ( \
201 PAD_CTL_HYS | \
202 PAD_CTL_PUS_100K_UP | \
203 PAD_CTL_PUE | \
204 PAD_CTL_ODE | \
205 PAD_CTL_SPEED_MED | \
206 PAD_CTL_DSE_40ohm | \
207 PAD_CTL_SRE_SLOW \
208 )
209
210static iomux_v3_cfg_t const gpio_pads[] = {
211 /* USB_H_PWR */
212 NEW_PAD_CTRL(MX6_PAD_GPIO_0__GPIO1_IO00, GPIO_PAD_CTRL),
213 /* USB_OTG_PWR */
214 NEW_PAD_CTRL(MX6_PAD_EIM_D22__GPIO3_IO22, GPIO_PAD_CTRL),
215 /* PCIE_RST */
216 NEW_PAD_CTRL(MX6_PAD_NANDF_CLE__GPIO6_IO07, GPIO_OD_PAD_CTRL),
217 /* UART1_PWRON */
218 NEW_PAD_CTRL(MX6_PAD_DISP0_DAT14__GPIO5_IO08, GPIO_PAD_CTRL),
219 /* UART2_PWRON */
220 NEW_PAD_CTRL(MX6_PAD_DISP0_DAT16__GPIO5_IO10, GPIO_PAD_CTRL),
221 /* UART3_PWRON */
222 NEW_PAD_CTRL(MX6_PAD_DISP0_DAT18__GPIO5_IO12, GPIO_PAD_CTRL),
223};
224
225#define GPIO_USB_H_PWR IMX_GPIO_NR(1, 0)
226#define GPIO_USB_OTG_PWR IMX_GPIO_NR(3, 22)
227#define GPIO_PCIE_RST IMX_GPIO_NR(6, 7)
228#define GPIO_UART1_PWRON IMX_GPIO_NR(5, 8)
229#define GPIO_UART2_PWRON IMX_GPIO_NR(5, 10)
230#define GPIO_UART3_PWRON IMX_GPIO_NR(5, 12)
231
232static void gpio_init(void)
233{
234 int ret;
235
236 imx_iomux_v3_setup_multiple_pads(gpio_pads, ARRAY_SIZE(gpio_pads));
237
238 ret = gpio_request(GPIO_USB_H_PWR, "usb-h-pwr");
239 if (!ret)
240 gpio_direction_output(GPIO_USB_H_PWR, 1);
241 ret = gpio_request(GPIO_USB_OTG_PWR, "usb-otg-pwr");
242 if (!ret)
243 gpio_direction_output(GPIO_USB_OTG_PWR, 1);
244 ret = gpio_request(GPIO_PCIE_RST, "pcie-reset");
245 if (!ret)
246 gpio_direction_output(GPIO_PCIE_RST, 1);
247 ret = gpio_request(GPIO_UART1_PWRON, "uart1-pwr");
248 if (!ret)
249 gpio_direction_output(GPIO_UART1_PWRON, 0);
250 ret = gpio_request(GPIO_UART2_PWRON, "uart2-pwr");
251 if (!ret)
252 gpio_direction_output(GPIO_UART2_PWRON, 0);
253 ret = gpio_request(GPIO_UART3_PWRON, "uart3-pwr");
254 if (!ret)
255 gpio_direction_output(GPIO_UART3_PWRON, 0);
256}
257
258void tqma6_iomuxc_spi(void)
259{
260 /* No SPI on this baseboard */
261}
262
263int tqma6_bb_board_early_init_f(void)
264{
265 setup_iomuxc_uart4();
266
267 return 0;
268}
269
270int tqma6_bb_board_init(void)
271{
272 setup_iomuxc_enet();
273
274 gpio_init();
275
276 /* Turn the UART-couplers on one-after-another */
277 gpio_set_value(GPIO_UART1_PWRON, 1);
278 mdelay(10);
279 gpio_set_value(GPIO_UART2_PWRON, 1);
280 mdelay(10);
281 gpio_set_value(GPIO_UART3_PWRON, 1);
282
283 return 0;
284}
285
286int tqma6_bb_board_late_init(void)
287{
288 return 0;
289}
290
291const char *tqma6_bb_get_boardname(void)
292{
293 return "WRU-IV";
294}
295
296static const struct boot_mode board_boot_modes[] = {
297 /* 4 bit bus width */
298 {"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
299 /* 8 bit bus width */
300 {"emmc", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
301 { NULL, 0 },
302};
303
304int misc_init_r(void)
305{
306 add_board_boot_modes(board_boot_modes);
307
308 return 0;
309}
310
311#define WRU4_USB_H1_PWR IMX_GPIO_NR(1, 0)
312#define WRU4_USB_OTG_PWR IMX_GPIO_NR(3, 22)
313
314int board_ehci_hcd_init(int port)
315{
316 int ret;
317
318 ret = gpio_request(WRU4_USB_H1_PWR, "usb-h1-pwr");
319 if (!ret)
320 gpio_direction_output(WRU4_USB_H1_PWR, 1);
321
322 ret = gpio_request(WRU4_USB_OTG_PWR, "usb-OTG-pwr");
323 if (!ret)
324 gpio_direction_output(WRU4_USB_OTG_PWR, 1);
325
326 return 0;
327}
328
329int board_ehci_power(int port, int on)
330{
331 if (port)
332 gpio_set_value(WRU4_USB_OTG_PWR, on);
333 else
334 gpio_set_value(WRU4_USB_H1_PWR, on);
335
336 return 0;
337}
338
339/*
340 * Device Tree Support
341 */
342#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
Masahiro Yamadab75d8dc2020-06-26 15:13:33 +0900343void tqma6_bb_ft_board_setup(void *blob, struct bd_info *bd)
Stefan Roese452308c2015-07-06 13:36:33 +0200344{
345 /* TBD */
346}
347#endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */