2 * Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
3 * Copyright (C) 2016 Grinn
5 * SPDX-License-Identifier: GPL-2.0+
8 #include <asm/arch/clock.h>
9 #include <asm/arch/iomux.h>
10 #include <asm/arch/imx-regs.h>
11 #include <asm/arch/crm_regs.h>
12 #include <asm/arch/mx6ul_pins.h>
13 #include <asm/arch/mx6-pins.h>
14 #include <asm/arch/sys_proto.h>
16 #include <asm/imx-common/iomux-v3.h>
17 #include <asm/imx-common/boot_mode.h>
20 #include <fsl_esdhc.h>
21 #include <linux/sizes.h>
23 #include <mach/litesom.h>
29 #include <usb/ehci-ci.h>
31 DECLARE_GLOBAL_DATA_PTR;
33 #define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
34 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
35 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
37 #define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
38 PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \
39 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
41 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
42 PAD_CTL_SPEED_HIGH | \
43 PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST)
45 #define MDIO_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
46 PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST | PAD_CTL_ODE)
48 #define ENET_CLK_PAD_CTRL (PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
50 static iomux_v3_cfg_t const uart1_pads[] = {
51 MX6_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
52 MX6_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
55 static iomux_v3_cfg_t const sd_pads[] = {
56 MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
57 MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
58 MX6_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
59 MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
60 MX6_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
61 MX6_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
64 MX6_PAD_UART1_RTS_B__GPIO1_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL),
68 static iomux_v3_cfg_t const fec1_pads[] = {
69 MX6_PAD_GPIO1_IO06__ENET1_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL),
70 MX6_PAD_GPIO1_IO07__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
71 MX6_PAD_ENET1_TX_DATA0__ENET1_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
72 MX6_PAD_ENET1_TX_DATA1__ENET1_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
73 MX6_PAD_ENET1_TX_EN__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
74 MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
75 MX6_PAD_ENET1_RX_DATA0__ENET1_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
76 MX6_PAD_ENET1_RX_DATA1__ENET1_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
77 MX6_PAD_ENET1_RX_ER__ENET1_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),
78 MX6_PAD_ENET1_RX_EN__ENET1_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
81 static void setup_iomux_fec(void)
83 imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
87 static void setup_iomux_uart(void)
89 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
92 #ifdef CONFIG_FSL_ESDHC
93 static struct fsl_esdhc_cfg sd_cfg = {USDHC1_BASE_ADDR, 0, 4};
95 #define SD_CD_GPIO IMX_GPIO_NR(1, 19)
97 static int mmc_get_env_devno(void)
99 u32 soc_sbmr = readl(SRC_BASE_ADDR + 0x4);
103 bootsel = (soc_sbmr & 0x000000FF) >> 6;
105 /* If not boot from sd/mmc, use default value */
107 return CONFIG_SYS_MMC_ENV_DEV;
109 /* BOOT_CFG2[3] and BOOT_CFG2[4] */
110 dev_no = (soc_sbmr & 0x00001800) >> 11;
115 int board_mmc_getcd(struct mmc *mmc)
117 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
120 switch (cfg->esdhc_base) {
121 case USDHC1_BASE_ADDR:
122 ret = !gpio_get_value(SD_CD_GPIO);
124 case USDHC2_BASE_ADDR:
132 int board_mmc_init(bd_t *bis)
137 imx_iomux_v3_setup_multiple_pads(sd_pads, ARRAY_SIZE(sd_pads));
138 gpio_direction_input(SD_CD_GPIO);
139 sd_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
141 ret = fsl_esdhc_initialize(bis, &sd_cfg);
143 printf("Warning: failed to initialize mmc dev 0 (SD)\n");
147 return litesom_mmc_init(bis);
150 static int check_mmc_autodetect(void)
152 char *autodetect_str = getenv("mmcautodetect");
154 if ((autodetect_str != NULL) &&
155 (strcmp(autodetect_str, "yes") == 0)) {
162 void board_late_mmc_init(void)
166 u32 dev_no = mmc_get_env_devno();
168 if (!check_mmc_autodetect())
171 setenv_ulong("mmcdev", dev_no);
174 sprintf(mmcblk, "/dev/mmcblk%dp2 rootwait rw",
176 setenv("mmcroot", mmcblk);
178 sprintf(cmd, "mmc dev %d", dev_no);
183 #ifdef CONFIG_FEC_MXC
184 int board_eth_init(bd_t *bis)
188 return fecmxc_initialize(bis);
191 static int setup_fec(void)
193 struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
196 /* Use 50M anatop loopback REF_CLK1 for ENET1, clear gpr1[13],
198 clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
199 IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
201 ret = enable_fec_anatop_clock(0, ENET_50MHZ);
211 #ifdef CONFIG_USB_EHCI_MX6
212 int board_usb_phy_mode(int port)
214 return USB_INIT_HOST;
218 int board_early_init_f(void)
227 /* Address of boot parameters */
228 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
230 #ifdef CONFIG_FEC_MXC
237 #ifdef CONFIG_CMD_BMODE
238 static const struct boot_mode board_boot_modes[] = {
239 /* 4 bit bus width */
240 {"sd", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)},
241 {"emmc", MAKE_CFGVAL(0x60, 0x48, 0x00, 0x00)},
246 int board_late_init(void)
248 #ifdef CONFIG_CMD_BMODE
249 add_board_boot_modes(board_boot_modes);
252 #ifdef CONFIG_ENV_IS_IN_MMC
253 board_late_mmc_init();
261 puts("Board: Grinn liteBoard\n");
266 #ifdef CONFIG_SPL_BUILD
267 void board_boot_order(u32 *spl_boot_list)
269 struct src *psrc = (struct src *)SRC_BASE_ADDR;
270 unsigned gpr10_boot = readl(&psrc->gpr10) & (1 << 28);
271 unsigned reg = gpr10_boot ? readl(&psrc->gpr9) : readl(&psrc->sbmr1);
272 unsigned port = (reg >> 11) & 0x1;
275 spl_boot_list[0] = BOOT_DEVICE_MMC1;
276 spl_boot_list[1] = BOOT_DEVICE_MMC2;
278 spl_boot_list[0] = BOOT_DEVICE_MMC2;
279 spl_boot_list[1] = BOOT_DEVICE_MMC1;
283 void board_init_f(ulong dummy)