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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / dd27918c22521a4f1d33dc9aafe60ecf9975938b / . / board / technologic / ts4600 / iomux.c
blob: 1398bbe0ccce1c3809c5b6bfe7ff54b217ed5cb4 [file] [log] [blame]
Sebastien Bourdelind9e268e2016-11-08 12:18:07 -0500[diff] [blame]1/*
2 * (C) Copyright 2016 Savoir-faire Linux Inc.
3 *
4 * Author: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
5 *
6 * Based on work from TS7680 code by:
7 * Kris Bahnsen <kris@embeddedarm.com>
8 * Mark Featherston <mark@embeddedarm.com>
9 * https://github.com/embeddedarm/u-boot/tree/master/board/technologic/ts7680
10 *
11 * Derived from MX28EVK code by
12 * Freescale Semiconductor, Inc.
13 *
14 * SPDX-License-Identifier: GPL-2.0+
15 */
16
17#include <common.h>
18#include <config.h>
19#include <asm/io.h>
20#include <asm/arch/iomux-mx28.h>
21#include <asm/arch/imx-regs.h>
22#include <asm/arch/sys_proto.h>
23
24#define MUX_CONFIG_SSP0 (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP)
25#define MUX_CONFIG_EMI (MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_NOPULL)
26
27const iomux_cfg_t iomux_setup[] = {
28 /* DUART */
29 MX28_PAD_PWM0__DUART_RX,
30 MX28_PAD_PWM1__DUART_TX,
31
32 /* MMC0 */
33 MX28_PAD_SSP0_DATA0__SSP0_D0 | MUX_CONFIG_SSP0,
34 MX28_PAD_SSP0_DATA1__SSP0_D1 | MUX_CONFIG_SSP0,
35 MX28_PAD_SSP0_DATA2__SSP0_D2 | MUX_CONFIG_SSP0,
36 MX28_PAD_SSP0_DATA3__SSP0_D3 | MUX_CONFIG_SSP0,
37 MX28_PAD_SSP0_CMD__SSP0_CMD | MUX_CONFIG_SSP0,
38 MX28_PAD_SSP0_SCK__SSP0_SCK |
39 (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
40
41 /* MMC0 slot power enable */
42 MX28_PAD_PWM3__GPIO_3_28 |
43 (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
44
45 /* EMI */
46 MX28_PAD_EMI_D00__EMI_DATA0 | MUX_CONFIG_EMI,
47 MX28_PAD_EMI_D01__EMI_DATA1 | MUX_CONFIG_EMI,
48 MX28_PAD_EMI_D02__EMI_DATA2 | MUX_CONFIG_EMI,
49 MX28_PAD_EMI_D03__EMI_DATA3 | MUX_CONFIG_EMI,
50 MX28_PAD_EMI_D04__EMI_DATA4 | MUX_CONFIG_EMI,
51 MX28_PAD_EMI_D05__EMI_DATA5 | MUX_CONFIG_EMI,
52 MX28_PAD_EMI_D06__EMI_DATA6 | MUX_CONFIG_EMI,
53 MX28_PAD_EMI_D07__EMI_DATA7 | MUX_CONFIG_EMI,
54 MX28_PAD_EMI_D08__EMI_DATA8 | MUX_CONFIG_EMI,
55 MX28_PAD_EMI_D09__EMI_DATA9 | MUX_CONFIG_EMI,
56 MX28_PAD_EMI_D10__EMI_DATA10 | MUX_CONFIG_EMI,
57 MX28_PAD_EMI_D11__EMI_DATA11 | MUX_CONFIG_EMI,
58 MX28_PAD_EMI_D12__EMI_DATA12 | MUX_CONFIG_EMI,
59 MX28_PAD_EMI_D13__EMI_DATA13 | MUX_CONFIG_EMI,
60 MX28_PAD_EMI_D14__EMI_DATA14 | MUX_CONFIG_EMI,
61 MX28_PAD_EMI_D15__EMI_DATA15 | MUX_CONFIG_EMI,
62 MX28_PAD_EMI_ODT0__EMI_ODT0 | MUX_CONFIG_EMI,
63 MX28_PAD_EMI_DQM0__EMI_DQM0 | MUX_CONFIG_EMI,
64 MX28_PAD_EMI_ODT1__EMI_ODT1 | MUX_CONFIG_EMI,
65 MX28_PAD_EMI_DQM1__EMI_DQM1 | MUX_CONFIG_EMI,
66 MX28_PAD_EMI_DDR_OPEN_FB__EMI_DDR_OPEN_FEEDBACK | MUX_CONFIG_EMI,
67 MX28_PAD_EMI_CLK__EMI_CLK | MUX_CONFIG_EMI,
68 MX28_PAD_EMI_DQS0__EMI_DQS0 | MUX_CONFIG_EMI,
69 MX28_PAD_EMI_DQS1__EMI_DQS1 | MUX_CONFIG_EMI,
70 MX28_PAD_EMI_DDR_OPEN__EMI_DDR_OPEN | MUX_CONFIG_EMI,
71 MX28_PAD_EMI_A00__EMI_ADDR0 | MUX_CONFIG_EMI,
72 MX28_PAD_EMI_A01__EMI_ADDR1 | MUX_CONFIG_EMI,
73 MX28_PAD_EMI_A02__EMI_ADDR2 | MUX_CONFIG_EMI,
74 MX28_PAD_EMI_A03__EMI_ADDR3 | MUX_CONFIG_EMI,
75 MX28_PAD_EMI_A04__EMI_ADDR4 | MUX_CONFIG_EMI,
76 MX28_PAD_EMI_A05__EMI_ADDR5 | MUX_CONFIG_EMI,
77 MX28_PAD_EMI_A06__EMI_ADDR6 | MUX_CONFIG_EMI,
78 MX28_PAD_EMI_A07__EMI_ADDR7 | MUX_CONFIG_EMI,
79 MX28_PAD_EMI_A08__EMI_ADDR8 | MUX_CONFIG_EMI,
80 MX28_PAD_EMI_A09__EMI_ADDR9 | MUX_CONFIG_EMI,
81 MX28_PAD_EMI_A10__EMI_ADDR10 | MUX_CONFIG_EMI,
82 MX28_PAD_EMI_A11__EMI_ADDR11 | MUX_CONFIG_EMI,
83 MX28_PAD_EMI_A12__EMI_ADDR12 | MUX_CONFIG_EMI,
84 MX28_PAD_EMI_A13__EMI_ADDR13 | MUX_CONFIG_EMI,
85 MX28_PAD_EMI_A14__EMI_ADDR14 | MUX_CONFIG_EMI,
86 MX28_PAD_EMI_BA0__EMI_BA0 | MUX_CONFIG_EMI,
87 MX28_PAD_EMI_BA1__EMI_BA1 | MUX_CONFIG_EMI,
88 MX28_PAD_EMI_BA2__EMI_BA2 | MUX_CONFIG_EMI,
89 MX28_PAD_EMI_CASN__EMI_CASN | MUX_CONFIG_EMI,
90 MX28_PAD_EMI_RASN__EMI_RASN | MUX_CONFIG_EMI,
91 MX28_PAD_EMI_WEN__EMI_WEN | MUX_CONFIG_EMI,
92 MX28_PAD_EMI_CE0N__EMI_CE0N | MUX_CONFIG_EMI,
93 MX28_PAD_EMI_CE1N__EMI_CE1N | MUX_CONFIG_EMI,
94 MX28_PAD_EMI_CKE__EMI_CKE | MUX_CONFIG_EMI,
95
96 /* I2C */
97 MX28_PAD_I2C0_SCL__I2C0_SCL,
98 MX28_PAD_I2C0_SDA__I2C0_SDA,
99
100};
101
102#define HW_DRAM_CTL29 (0x74 >> 2)
103#define CS_MAP 0xf
104#define COLUMN_SIZE 0x2
105#define ADDR_PINS 0x1
106#define APREBIT 0xa
107
108#define HW_DRAM_CTL29_CONFIG (CS_MAP << 24 | COLUMN_SIZE << 16 | \
109 ADDR_PINS << 8 | APREBIT)
110
111#define HW_DRAM_CTL39 (0x9c >> 2)
112#define TFAW 0xb
113#define TDLL 0xc8
114
115#define HW_DRAM_CTL39_CONFIG (TFAW << 24 | TDLL)
116
117#define HW_DRAM_CTL41 (0xa4 >> 2)
118#define TPDEX 0x2
119#define TRCD_INT 0x4
120#define TRC 0xd
121
122#define HW_DRAM_CTL41_CONFIG (TPDEX << 24 | TRCD_INT << 8 | TRC)
123
124#define HW_DRAM_CTL42 (0xa8 >> 2)
125#define TRAS_MAX 0x36a6
126#define TRAS_MIN 0xa
127
128#define HW_DRAM_CTL42_CONFIG (TRAS_MAX << 8 | TRAS_MIN)
129
130#define HW_DRAM_CTL43 (0xac >> 2)
131#define TRP 0x4
132#define TRFC 0x27
133#define TREF 0x2a0
134
135#define HW_DRAM_CTL43_CONFIG (TRP << 24 | TRFC << 16 | TREF)
136
137void mxs_adjust_memory_params(uint32_t *dram_vals)
138{
139 dram_vals[HW_DRAM_CTL29] = HW_DRAM_CTL29_CONFIG;
140 dram_vals[HW_DRAM_CTL39] = HW_DRAM_CTL39_CONFIG;
141 dram_vals[HW_DRAM_CTL41] = HW_DRAM_CTL41_CONFIG;
142 dram_vals[HW_DRAM_CTL42] = HW_DRAM_CTL42_CONFIG;
143 dram_vals[HW_DRAM_CTL43] = HW_DRAM_CTL43_CONFIG;
144}
145
146void board_init_ll(const uint32_t arg, const uint32_t *resptr)
147{
148 mxs_common_spl_init(arg, resptr, iomux_setup, ARRAY_SIZE(iomux_setup));
149}