xref: /openbmc/u-boot/board/compulab/cm_fx6/common.c (revision 3dc23f78)
1 /*
2  * Code used by both U-Boot and SPL for Compulab CM-FX6
3  *
4  * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
5  *
6  * Author: Nikita Kiryanov <nikita@compulab.co.il>
7  *
8  * SPDX-License-Identifier:	GPL-2.0+
9  */
10 
11 #include <common.h>
12 #include <asm/arch/sys_proto.h>
13 #include <asm/gpio.h>
14 #include <fsl_esdhc.h>
15 #include "common.h"
16 
17 DECLARE_GLOBAL_DATA_PTR;
18 
19 #ifdef CONFIG_FSL_ESDHC
20 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |			\
21 	PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |			\
22 	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
23 
24 static iomux_v3_cfg_t const usdhc_pads[] = {
25 	IOMUX_PADS(PAD_SD1_CLK__SD1_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
26 	IOMUX_PADS(PAD_SD1_CMD__SD1_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
27 	IOMUX_PADS(PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
28 	IOMUX_PADS(PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
29 	IOMUX_PADS(PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
30 	IOMUX_PADS(PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
31 
32 	IOMUX_PADS(PAD_SD2_CLK__SD2_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
33 	IOMUX_PADS(PAD_SD2_CMD__SD2_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
34 	IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
35 	IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
36 	IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
37 	IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
38 
39 	IOMUX_PADS(PAD_SD3_CLK__SD3_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
40 	IOMUX_PADS(PAD_SD3_CMD__SD3_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
41 	IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
42 	IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
43 	IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
44 	IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
45 	IOMUX_PADS(PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
46 	IOMUX_PADS(PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
47 	IOMUX_PADS(PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
48 	IOMUX_PADS(PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
49 };
50 
51 void cm_fx6_set_usdhc_iomux(void)
52 {
53 	SETUP_IOMUX_PADS(usdhc_pads);
54 }
55 
56 /* CINS bit doesn't work, so always try to access the MMC card */
57 int board_mmc_getcd(struct mmc *mmc)
58 {
59 	return 1;
60 }
61 #endif
62 
63 #ifdef CONFIG_MXC_SPI
64 #define ECSPI_PAD_CTRL (PAD_CTL_SRE_FAST | PAD_CTL_SPEED_MED | \
65 		PAD_CTL_PUS_100K_DOWN | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
66 
67 static iomux_v3_cfg_t const ecspi_pads[] = {
68 	IOMUX_PADS(PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
69 	IOMUX_PADS(PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
70 	IOMUX_PADS(PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
71 	IOMUX_PADS(PAD_EIM_EB2__GPIO2_IO30  | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
72 	IOMUX_PADS(PAD_EIM_D19__ECSPI1_SS1  | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
73 };
74 
75 void cm_fx6_set_ecspi_iomux(void)
76 {
77 	SETUP_IOMUX_PADS(ecspi_pads);
78 }
79 
80 int board_spi_cs_gpio(unsigned bus, unsigned cs)
81 {
82 	return (bus == 0 && cs == 0) ? (CM_FX6_ECSPI_BUS0_CS0) : -1;
83 }
84 #endif
85