[U-Boot] [PATCH v4 085/100] x86: apl: Add pinctrl driver
Simon Glass
sjg at chromium.org
Fri Nov 22 04:18:50 UTC 2019
Add a driver for the Apollo Lake pinctrl. This mostly makes use of the
common Intel pinctrl support.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
Changes in v4:
- Allow pinctrl nodes to have subnodes (i.e. GPIO nodes)
- Drop GPIO_NUM_PAD_CFG_REGS
- Switch over to use pinctrl for pad init/config
- Tidy up the header file a little
- apollolake -> Apollo Lake
Changes in v3:
- Add various minor tidy-ups
- Fix mixed case in GPIO defines
- Rework how pads configuration is defined in TPL and SPL
- Use the IRQ uclass instead of ITSS
Changes in v2: None
arch/x86/include/asm/arch-apollolake/gpio.h | 490 ++++++++++++++++++++
drivers/pinctrl/intel/Kconfig | 17 +
drivers/pinctrl/intel/Makefile | 1 +
drivers/pinctrl/intel/pinctrl_apl.c | 192 ++++++++
4 files changed, 700 insertions(+)
create mode 100644 arch/x86/include/asm/arch-apollolake/gpio.h
create mode 100644 drivers/pinctrl/intel/pinctrl_apl.c
diff --git a/arch/x86/include/asm/arch-apollolake/gpio.h b/arch/x86/include/asm/arch-apollolake/gpio.h
new file mode 100644
index 0000000000..f33025d7c5
--- /dev/null
+++ b/arch/x86/include/asm/arch-apollolake/gpio.h
@@ -0,0 +1,490 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Definitions for the GPIO subsystem on Apollolake
+ *
+ * Copyright (C) 2015 - 2017 Intel Corp.
+ * (Written by Alexandru Gagniuc <alexandrux.gagniuc at intel.com> for Intel Corp.)
+ *
+ * Placed in a separate file since some of these definitions can be used from
+ * assembly code
+ *
+ * Taken from gpio_apl.h in coreboot
+ */
+
+#ifndef _ASM_ARCH_GPIO_H_
+#define _ASM_ARCH_GPIO_H_
+
+/* Port ids */
+#if IS_ENABLED(CONFIG_SOC_INTEL_GLK)
+#define PID_GPIO_AUDIO 0xC9
+#define PID_GPIO_SCC 0xC8
+#else
+#define PID_GPIO_SW 0xC0
+#define PID_GPIO_S 0xC2
+#define PID_GPIO_W 0xC7
+#endif
+#define PID_GPIO_NW 0xC4
+#define PID_GPIO_N 0xC5
+#define PID_ITSS 0xD0
+#define PID_RTC 0xD1
+
+/*
+ * Miscellaneous Configuration register(MISCCFG). These are community-specific
+ * registers and are meant to house miscellaneous configuration fields per
+ * community. There are 8 GPIO groups: GPP_0 -> GPP_8 (Group 3 is absent)
+ */
+#define GPIO_MISCCFG 0x10 /* Miscellaneous Configuration offset */
+#define GPIO_GPE_SW_31_0 0 /* SOUTHWEST GPIO# 0 ~ 31 belong to GROUP0 */
+#define GPIO_GPE_SW_63_32 1 /* SOUTHWEST GPIO# 32 ~ 42 belong to GROUP1 */
+#define GPIO_GPE_W_31_0 2 /* WEST GPIO# 0 ~ 25 belong to GROUP2 */
+#define GPIO_GPE_NW_31_0 4 /* NORTHWEST GPIO# 0 ~ 17 belong to GROUP4 */
+#define GPIO_GPE_NW_63_32 5 /* NORTHWEST GPIO# 32 ~ 63 belong to GROUP5 */
+#define GPIO_GPE_NW_95_64 6 /* NORTHWEST GPIO# 64 ~ 76 belong to GROUP6 */
+#define GPIO_GPE_N_31_0 7 /* NORTH GPIO# 0 ~ 31 belong to GROUP7 */
+#define GPIO_GPE_N_63_32 8 /* NORTH GPIO# 32 ~ 61 belong to GROUP8 */
+
+#define GPIO_MAX_NUM_PER_GROUP 32
+
+/*
+ * Host Software Pad Ownership Register.
+ * The pins in the community are divided into 3 groups:
+ * GPIO 0 ~ 31, GPIO 32 ~ 63, GPIO 64 ~ 95
+ */
+#define HOSTSW_OWN_REG_0 0x80
+
+#define PAD_CFG_BASE 0x500
+
+#define GPI_INT_STS_0 0x100
+#define GPI_INT_EN_0 0x110
+
+#define GPI_SMI_STS_0 0x140
+#define GPI_SMI_EN_0 0x150
+
+#define NUM_N_PADS (PAD_N(SVID0_CLK) + 1)
+#define NUM_NW_PADS (PAD_NW(GPIO_123) + 1)
+#define NUM_W_PADS (PAD_W(SUSPWRDNACK) + 1)
+#define NUM_SW_PADS (PAD_SW(LPC_FRAMEB) + 1)
+
+#define NUM_N_GPI_REGS \
+ (ALIGN(NUM_N_PADS, GPIO_MAX_NUM_PER_GROUP) / GPIO_MAX_NUM_PER_GROUP)
+
+#define NUM_NW_GPI_REGS \
+ (ALIGN(NUM_NW_PADS, GPIO_MAX_NUM_PER_GROUP) / GPIO_MAX_NUM_PER_GROUP)
+
+#define NUM_W_GPI_REGS \
+ (ALIGN(NUM_W_PADS, GPIO_MAX_NUM_PER_GROUP) / GPIO_MAX_NUM_PER_GROUP)
+
+#define NUM_SW_GPI_REGS \
+ (ALIGN(NUM_SW_PADS, GPIO_MAX_NUM_PER_GROUP) / GPIO_MAX_NUM_PER_GROUP)
+
+/*
+ * Total number of GPI status registers across all GPIO communities in the SOC
+ */
+#define NUM_GPI_STATUS_REGS (NUM_N_GPI_REGS + NUM_NW_GPI_REGS \
+ + NUM_W_GPI_REGS + NUM_SW_GPI_REGS)
+
+/* North community pads */
+#define GPIO_0 0
+#define GPIO_1 1
+#define GPIO_2 2
+#define GPIO_3 3
+#define GPIO_4 4
+#define GPIO_5 5
+#define GPIO_6 6
+#define GPIO_7 7
+#define GPIO_8 8
+#define GPIO_9 9
+#define GPIO_10 10
+#define GPIO_11 11
+#define GPIO_12 12
+#define GPIO_13 13
+#define GPIO_14 14
+#define GPIO_15 15
+#define GPIO_16 16
+#define GPIO_17 17
+#define GPIO_18 18
+#define GPIO_19 19
+#define GPIO_20 20
+#define GPIO_21 21
+#define GPIO_22 22
+#define GPIO_23 23
+#define GPIO_24 24
+#define GPIO_25 25
+#define GPIO_26 26
+#define GPIO_27 27
+#define GPIO_28 28
+#define GPIO_29 29
+#define GPIO_30 30
+#define GPIO_31 31
+#define GPIO_32 32
+#define GPIO_33 33
+#define GPIO_34 34
+#define GPIO_35 35
+#define GPIO_36 36
+#define GPIO_37 37
+#define GPIO_38 38
+#define GPIO_39 39
+#define GPIO_40 40
+#define GPIO_41 41
+#define GPIO_42 42
+#define GPIO_43 43
+#define GPIO_44 44
+#define GPIO_45 45
+#define GPIO_46 46
+#define GPIO_47 47
+#define GPIO_48 48
+#define GPIO_49 49
+#define GPIO_62 50
+#define GPIO_63 51
+#define GPIO_64 52
+#define GPIO_65 53
+#define GPIO_66 54
+#define GPIO_67 55
+#define GPIO_68 56
+#define GPIO_69 57
+#define GPIO_70 58
+#define GPIO_71 59
+#define GPIO_72 60
+#define GPIO_73 61
+#define JTAG_TCK 62
+#define JTAG_TRST_B 63
+#define JTAG_TMS 64
+#define JTAG_TDI 65
+#define JTAG_CX_PMODE 66
+#define JTAG_CX_PREQ_B 67
+#define JTAGX 68
+#define JTAG_CX_PRDY_B 69
+#define JTAG_TDO 70
+#define CNV_BRI_DT 71
+#define CNV_BRI_RSP 72
+#define CNV_RGI_DT 73
+#define CNV_RGI_RSP 74
+#define SVID0_ALERT_B 75
+#define SVID0_DATA 76
+#define SVID0_CLK 77
+
+/* Northwest community pads */
+#define GPIO_187 78
+#define GPIO_188 79
+#define GPIO_189 80
+#define GPIO_190 81
+#define GPIO_191 82
+#define GPIO_192 83
+#define GPIO_193 84
+#define GPIO_194 85
+#define GPIO_195 86
+#define GPIO_196 87
+#define GPIO_197 88
+#define GPIO_198 89
+#define GPIO_199 90
+#define GPIO_200 91
+#define GPIO_201 92
+#define GPIO_202 93
+#define GPIO_203 94
+#define GPIO_204 95
+#define PMC_SPI_FS0 96
+#define PMC_SPI_FS1 97
+#define PMC_SPI_FS2 98
+#define PMC_SPI_RXD 99
+#define PMC_SPI_TXD 100
+#define PMC_SPI_CLK 101
+#define PMIC_PWRGOOD 102
+#define PMIC_RESET_B 103
+#define GPIO_213 104
+#define GPIO_214 105
+#define GPIO_215 106
+#define PMIC_THERMTRIP_B 107
+#define PMIC_STDBY 108
+#define PROCHOT_B 109
+#define PMIC_I2C_SCL 110
+#define PMIC_I2C_SDA 111
+#define GPIO_74 112
+#define GPIO_75 113
+#define GPIO_76 114
+#define GPIO_77 115
+#define GPIO_78 116
+#define GPIO_79 117
+#define GPIO_80 118
+#define GPIO_81 119
+#define GPIO_82 120
+#define GPIO_83 121
+#define GPIO_84 122
+#define GPIO_85 123
+#define GPIO_86 124
+#define GPIO_87 125
+#define GPIO_88 126
+#define GPIO_89 127
+#define GPIO_90 128
+#define GPIO_91 129
+#define GPIO_92 130
+#define GPIO_97 131
+#define GPIO_98 132
+#define GPIO_99 133
+#define GPIO_100 134
+#define GPIO_101 135
+#define GPIO_102 136
+#define GPIO_103 137
+#define FST_SPI_CLK_FB 138
+#define GPIO_104 139
+#define GPIO_105 140
+#define GPIO_106 141
+#define GPIO_109 142
+#define GPIO_110 143
+#define GPIO_111 144
+#define GPIO_112 145
+#define GPIO_113 146
+#define GPIO_116 147
+#define GPIO_117 148
+#define GPIO_118 149
+#define GPIO_119 150
+#define GPIO_120 151
+#define GPIO_121 152
+#define GPIO_122 153
+#define GPIO_123 154
+
+/* West community pads */
+#define GPIO_124 155
+#define GPIO_125 156
+#define GPIO_126 157
+#define GPIO_127 158
+#define GPIO_128 159
+#define GPIO_129 160
+#define GPIO_130 161
+#define GPIO_131 162
+#define GPIO_132 163
+#define GPIO_133 164
+#define GPIO_134 165
+#define GPIO_135 166
+#define GPIO_136 167
+#define GPIO_137 168
+#define GPIO_138 169
+#define GPIO_139 170
+#define GPIO_146 171
+#define GPIO_147 172
+#define GPIO_148 173
+#define GPIO_149 174
+#define GPIO_150 175
+#define GPIO_151 176
+#define GPIO_152 177
+#define GPIO_153 178
+#define GPIO_154 179
+#define GPIO_155 180
+#define GPIO_209 181
+#define GPIO_210 182
+#define GPIO_211 183
+#define GPIO_212 184
+#define OSC_CLK_OUT_0 185
+#define OSC_CLK_OUT_1 186
+#define OSC_CLK_OUT_2 187
+#define OSC_CLK_OUT_3 188
+#define OSC_CLK_OUT_4 189
+#define PMU_AC_PRESENT 190
+#define PMU_BATLOW_B 191
+#define PMU_PLTRST_B 192
+#define PMU_PWRBTN_B 193
+#define PMU_RESETBUTTON_B 194
+#define PMU_SLP_S0_B 195
+#define PMU_SLP_S3_B 196
+#define PMU_SLP_S4_B 197
+#define PMU_SUSCLK 198
+#define PMU_WAKE_B 199
+#define SUS_STAT_B 200
+#define SUSPWRDNACK 201
+
+/* Southwest community pads */
+#define GPIO_205 202
+#define GPIO_206 203
+#define GPIO_207 204
+#define GPIO_208 205
+#define GPIO_156 206
+#define GPIO_157 207
+#define GPIO_158 208
+#define GPIO_159 209
+#define GPIO_160 210
+#define GPIO_161 211
+#define GPIO_162 212
+#define GPIO_163 213
+#define GPIO_164 214
+#define GPIO_165 215
+#define GPIO_166 216
+#define GPIO_167 217
+#define GPIO_168 218
+#define GPIO_169 219
+#define GPIO_170 220
+#define GPIO_171 221
+#define GPIO_172 222
+#define GPIO_179 223
+#define GPIO_173 224
+#define GPIO_174 225
+#define GPIO_175 226
+#define GPIO_176 227
+#define GPIO_177 228
+#define GPIO_178 229
+#define GPIO_186 230
+#define GPIO_182 231
+#define GPIO_183 232
+#define SMB_ALERTB 233
+#define SMB_CLK 234
+#define SMB_DATA 235
+#define LPC_ILB_SERIRQ 236
+#define LPC_CLKOUT0 237
+#define LPC_CLKOUT1 238
+#define LPC_AD0 239
+#define LPC_AD1 240
+#define LPC_AD2 241
+#define LPC_AD3 242
+#define LPC_CLKRUNB 243
+#define LPC_FRAMEB 244
+
+/* PERST_0 not defined */
+#define GPIO_PRT0_UDEF 0xFF
+
+#define TOTAL_PADS 245
+#define N_OFFSET GPIO_0
+#define NW_OFFSET GPIO_187
+#define W_OFFSET GPIO_124
+#define SW_OFFSET GPIO_205
+
+/* Macros for translating a global pad offset to a local offset */
+#define PAD_N(pad) (pad - N_OFFSET)
+#define PAD_NW(pad) (pad - NW_OFFSET)
+#define PAD_W(pad) (pad - W_OFFSET)
+#define PAD_SW(pad) (pad - SW_OFFSET)
+
+/* Linux names of the GPIO devices */
+#define GPIO_COMM_N_NAME "INT3452:00"
+#define GPIO_COMM_NW_NAME "INT3452:01"
+#define GPIO_COMM_W_NAME "INT3452:02"
+#define GPIO_COMM_SW_NAME "INT3452:03"
+
+/* Following is used in gpio asl */
+#define GPIO_COMM_NAME "INT3452"
+#define GPIO_COMM_0_DESC \
+ "General Purpose Input/Output (GPIO) Controller - North"
+#define GPIO_COMM_1_DESC \
+ "General Purpose Input/Output (GPIO) Controller - Northwest"
+#define GPIO_COMM_2_DESC \
+ "General Purpose Input/Output (GPIO) Controller - West"
+#define GPIO_COMM_3_DESC \
+ "General Purpose Input/Output (GPIO) Controller - Southwest"
+
+#define GPIO_COMM0_PID PID_GPIO_N
+#define GPIO_COMM1_PID PID_GPIO_NW
+#define GPIO_COMM2_PID PID_GPIO_W
+#define GPIO_COMM3_PID PID_GPIO_SW
+
+/*
+ * IOxAPIC IRQs for the GPIOs, overlap is expected as we encourage to use
+ * shared IRQ instead of direct IRQ, in case of overlapping, we can easily
+ * program one of the overlap to shared IRQ to avoid the conflict.
+ */
+
+/* NorthWest community pads */
+#define PMIC_I2C_SDA_IRQ 0x32
+#define GPIO_74_IRQ 0x33
+#define GPIO_75_IRQ 0x34
+#define GPIO_76_IRQ 0x35
+#define GPIO_77_IRQ 0x36
+#define GPIO_78_IRQ 0x37
+#define GPIO_79_IRQ 0x38
+#define GPIO_80_IRQ 0x39
+#define GPIO_81_IRQ 0x3A
+#define GPIO_82_IRQ 0x3B
+#define GPIO_83_IRQ 0x3C
+#define GPIO_84_IRQ 0x3D
+#define GPIO_85_IRQ 0x3E
+#define GPIO_86_IRQ 0x3F
+#define GPIO_87_IRQ 0x40
+#define GPIO_88_IRQ 0x41
+#define GPIO_89_IRQ 0x42
+#define GPIO_90_IRQ 0x43
+#define GPIO_91_IRQ 0x44
+#define GPIO_97_IRQ 0x49
+#define GPIO_98_IRQ 0x4A
+#define GPIO_99_IRQ 0x4B
+#define GPIO_100_IRQ 0x4C
+#define GPIO_101_IRQ 0x4D
+#define GPIO_102_IRQ 0x4E
+#define GPIO_103_IRQ 0x4F
+#define GPIO_104_IRQ 0x50
+#define GPIO_105_IRQ 0x51
+#define GPIO_106_IRQ 0x52
+#define GPIO_109_IRQ 0x54
+#define GPIO_110_IRQ 0x55
+#define GPIO_111_IRQ 0x56
+#define GPIO_112_IRQ 0x57
+#define GPIO_113_IRQ 0x58
+#define GPIO_116_IRQ 0x5B
+#define GPIO_117_IRQ 0x5C
+#define GPIO_118_IRQ 0x5D
+#define GPIO_119_IRQ 0x5E
+#define GPIO_120_IRQ 0x5F
+#define GPIO_121_IRQ 0x60
+#define GPIO_122_IRQ 0x61
+#define GPIO_123_IRQ 0x62
+
+/* North community pads */
+#define GPIO_0_IRQ 0x63
+#define GPIO_1_IRQ 0x64
+#define GPIO_2_IRQ 0x65
+#define GPIO_3_IRQ 0x66
+#define GPIO_4_IRQ 0x67
+#define GPIO_5_IRQ 0x68
+#define GPIO_6_IRQ 0x69
+#define GPIO_7_IRQ 0x6A
+#define GPIO_8_IRQ 0x6B
+#define GPIO_9_IRQ 0x6C
+#define GPIO_10_IRQ 0x6D
+#define GPIO_11_IRQ 0x6E
+#define GPIO_12_IRQ 0x6F
+#define GPIO_13_IRQ 0x70
+#define GPIO_14_IRQ 0x71
+#define GPIO_15_IRQ 0x72
+#define GPIO_16_IRQ 0x73
+#define GPIO_17_IRQ 0x74
+#define GPIO_18_IRQ 0x75
+#define GPIO_19_IRQ 0x76
+#define GPIO_20_IRQ 0x77
+#define GPIO_21_IRQ 0x32
+#define GPIO_22_IRQ 0x33
+#define GPIO_23_IRQ 0x34
+#define GPIO_24_IRQ 0x35
+#define GPIO_25_IRQ 0x36
+#define GPIO_26_IRQ 0x37
+#define GPIO_27_IRQ 0x38
+#define GPIO_28_IRQ num_reset_vals0x39
+#define GPIO_29_IRQ 0x3A
+#define GPIO_30_IRQ 0x3B
+#define GPIO_31_IRQ 0x3C
+#define GPIO_32_IRQ 0x3D
+#define GPIO_33_IRQ 0x3E
+#define GPIO_34_IRQ 0x3F
+#define GPIO_35_IRQ 0x40
+#define GPIO_36_IRQ 0x41
+#define GPIO_37_IRQ 0x42
+#define GPIO_38_IRQ 0x43
+#define GPIO_39_IRQ 0x44
+#define GPIO_40_IRQ 0x45
+#define GPIO_41_IRQ 0x46
+#define GPIO_42_IRQ 0x47
+#define GPIO_43_IRQ 0x48
+#define GPIO_44_IRQ 0x49
+#define GPIO_45_IRQ 0x4A
+#define GPIO_46_IRQ 0x4B
+#define GPIO_47_IRQ 0x4C
+#define GPIO_48_IRQ 0x4D
+#define GPIO_49_IRQ 0x4E
+#define GPIO_62_IRQ 0x5B
+#define GPIO_63_IRQ 0x5C
+#define GPIO_64_IRQ 0x5D
+#define GPIO_65_IRQ 0x5E
+#define GPIO_66_IRQ 0x5F
+#define GPIO_67_IRQ 0x60
+#define GPIO_68_IRQ 0x61
+#define GPIO_69_IRQ 0x62
+#define GPIO_70_IRQ 0x63
+#define GPIO_71_IRQ 0x64
+#define GPIO_72_IRQ 0x65
+#define GPIO_73_IRQ 0x66
+
+#endif /* _ASM_ARCH_GPIO_H_ */
diff --git a/drivers/pinctrl/intel/Kconfig b/drivers/pinctrl/intel/Kconfig
index 727b743431..daf34d23ba 100644
--- a/drivers/pinctrl/intel/Kconfig
+++ b/drivers/pinctrl/intel/Kconfig
@@ -4,4 +4,21 @@
if PINCTRL_INTEL
+config PINCTRL_INTEL_APL
+ bool "Support Intel Apollo Lake (APL)"
+ help
+ Add support for Intel Apollo Lake pin-control and pin-mux settings.
+ These are mostly read from the device tree, with the early-pads
+ property in the host bridge and the pads property in the fsp-s
+ subnode of the host bridge.
+
+config INTEL_PINCTRL_DUAL_ROUTE_SUPPORT
+ def_bool y
+
+config INTEL_PINCTRL_PADCFG_PADTOL
+ def_bool n
+
+config INTEL_PINCTRL_IOSTANDBY
+ def_bool y
+
endif
diff --git a/drivers/pinctrl/intel/Makefile b/drivers/pinctrl/intel/Makefile
index bc1aad2c06..3aed8e9663 100644
--- a/drivers/pinctrl/intel/Makefile
+++ b/drivers/pinctrl/intel/Makefile
@@ -3,3 +3,4 @@
# Copyright 2019 Google LLC
obj-y += pinctrl.o
+obj-$(CONFIG_PINCTRL_INTEL_APL) += pinctrl_apl.o
diff --git a/drivers/pinctrl/intel/pinctrl_apl.c b/drivers/pinctrl/intel/pinctrl_apl.c
new file mode 100644
index 0000000000..bd80435ffa
--- /dev/null
+++ b/drivers/pinctrl/intel/pinctrl_apl.c
@@ -0,0 +1,192 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 Intel Corp.
+ * Copyright 2019 Google LLC
+ *
+ * Taken partly from coreboot gpio.c
+ */
+
+#define LOG_CATEGORY UCLASS_GPIO
+
+#include <common.h>
+#include <dm.h>
+#include <dt-structs.h>
+#include <p2sb.h>
+#include <asm/intel_pinctrl.h>
+#include <asm-generic/gpio.h>
+#include <asm/intel_pinctrl_defs.h>
+
+/**
+ * struct apl_gpio_platdata - platform data for each device
+ *
+ * @dtplat: of-platdata data from C struct
+ */
+struct apl_gpio_platdata {
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+ /* Put this first since driver model will copy the data here */
+ struct dtd_intel_apl_pinctrl dtplat;
+#endif
+};
+
+static const struct reset_mapping rst_map[] = {
+ { .logical = PAD_CFG0_LOGICAL_RESET_PWROK, .chipset = 0U << 30 },
+ { .logical = PAD_CFG0_LOGICAL_RESET_DEEP, .chipset = 1U << 30 },
+ { .logical = PAD_CFG0_LOGICAL_RESET_PLTRST, .chipset = 2U << 30 },
+};
+
+/* Groups for each community */
+static const struct pad_group apl_community_n_groups[] = {
+ INTEL_GPP(N_OFFSET, N_OFFSET, GPIO_31), /* NORTH 0 */
+ INTEL_GPP(N_OFFSET, GPIO_32, JTAG_TRST_B), /* NORTH 1 */
+ INTEL_GPP(N_OFFSET, JTAG_TMS, SVID0_CLK), /* NORTH 2 */
+};
+
+static const struct pad_group apl_community_w_groups[] = {
+ INTEL_GPP(W_OFFSET, W_OFFSET, OSC_CLK_OUT_1), /* WEST 0 */
+ INTEL_GPP(W_OFFSET, OSC_CLK_OUT_2, SUSPWRDNACK),/* WEST 1 */
+};
+
+static const struct pad_group apl_community_sw_groups[] = {
+ INTEL_GPP(SW_OFFSET, SW_OFFSET, SMB_ALERTB), /* SOUTHWEST 0 */
+ INTEL_GPP(SW_OFFSET, SMB_CLK, LPC_FRAMEB), /* SOUTHWEST 1 */
+};
+
+static const struct pad_group apl_community_nw_groups[] = {
+ INTEL_GPP(NW_OFFSET, NW_OFFSET, PROCHOT_B), /* NORTHWEST 0 */
+ INTEL_GPP(NW_OFFSET, PMIC_I2C_SCL, GPIO_106), /* NORTHWEST 1 */
+ INTEL_GPP(NW_OFFSET, GPIO_109, GPIO_123), /* NORTHWEST 2 */
+};
+
+/* TODO(sjg at chromium.org): Consider moving this to device tree */
+static const struct pad_community apl_gpio_communities[] = {
+ {
+ .port = PID_GPIO_N,
+ .first_pad = N_OFFSET,
+ .last_pad = SVID0_CLK,
+ .num_gpi_regs = NUM_N_GPI_REGS,
+ .gpi_status_offset = NUM_NW_GPI_REGS + NUM_W_GPI_REGS
+ + NUM_SW_GPI_REGS,
+ .pad_cfg_base = PAD_CFG_BASE,
+ .host_own_reg_0 = HOSTSW_OWN_REG_0,
+ .gpi_int_sts_reg_0 = GPI_INT_STS_0,
+ .gpi_int_en_reg_0 = GPI_INT_EN_0,
+ .gpi_smi_sts_reg_0 = GPI_SMI_STS_0,
+ .gpi_smi_en_reg_0 = GPI_SMI_EN_0,
+ .max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
+ .name = "GPIO_GPE_N",
+ .acpi_path = "\\_SB.GPO0",
+ .reset_map = rst_map,
+ .num_reset_vals = ARRAY_SIZE(rst_map),
+ .groups = apl_community_n_groups,
+ .num_groups = ARRAY_SIZE(apl_community_n_groups),
+ }, {
+ .port = PID_GPIO_NW,
+ .first_pad = NW_OFFSET,
+ .last_pad = GPIO_123,
+ .num_gpi_regs = NUM_NW_GPI_REGS,
+ .gpi_status_offset = NUM_W_GPI_REGS + NUM_SW_GPI_REGS,
+ .pad_cfg_base = PAD_CFG_BASE,
+ .host_own_reg_0 = HOSTSW_OWN_REG_0,
+ .gpi_int_sts_reg_0 = GPI_INT_STS_0,
+ .gpi_int_en_reg_0 = GPI_INT_EN_0,
+ .gpi_smi_sts_reg_0 = GPI_SMI_STS_0,
+ .gpi_smi_en_reg_0 = GPI_SMI_EN_0,
+ .max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
+ .name = "GPIO_GPE_NW",
+ .acpi_path = "\\_SB.GPO1",
+ .reset_map = rst_map,
+ .num_reset_vals = ARRAY_SIZE(rst_map),
+ .groups = apl_community_nw_groups,
+ .num_groups = ARRAY_SIZE(apl_community_nw_groups),
+ }, {
+ .port = PID_GPIO_W,
+ .first_pad = W_OFFSET,
+ .last_pad = SUSPWRDNACK,
+ .num_gpi_regs = NUM_W_GPI_REGS,
+ .gpi_status_offset = NUM_SW_GPI_REGS,
+ .pad_cfg_base = PAD_CFG_BASE,
+ .host_own_reg_0 = HOSTSW_OWN_REG_0,
+ .gpi_int_sts_reg_0 = GPI_INT_STS_0,
+ .gpi_int_en_reg_0 = GPI_INT_EN_0,
+ .gpi_smi_sts_reg_0 = GPI_SMI_STS_0,
+ .gpi_smi_en_reg_0 = GPI_SMI_EN_0,
+ .max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
+ .name = "GPIO_GPE_W",
+ .acpi_path = "\\_SB.GPO2",
+ .reset_map = rst_map,
+ .num_reset_vals = ARRAY_SIZE(rst_map),
+ .groups = apl_community_w_groups,
+ .num_groups = ARRAY_SIZE(apl_community_w_groups),
+ }, {
+ .port = PID_GPIO_SW,
+ .first_pad = SW_OFFSET,
+ .last_pad = LPC_FRAMEB,
+ .num_gpi_regs = NUM_SW_GPI_REGS,
+ .gpi_status_offset = 0,
+ .pad_cfg_base = PAD_CFG_BASE,
+ .host_own_reg_0 = HOSTSW_OWN_REG_0,
+ .gpi_int_sts_reg_0 = GPI_INT_STS_0,
+ .gpi_int_en_reg_0 = GPI_INT_EN_0,
+ .gpi_smi_sts_reg_0 = GPI_SMI_STS_0,
+ .gpi_smi_en_reg_0 = GPI_SMI_EN_0,
+ .max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
+ .name = "GPIO_GPE_SW",
+ .acpi_path = "\\_SB.GPO3",
+ .reset_map = rst_map,
+ .num_reset_vals = ARRAY_SIZE(rst_map),
+ .groups = apl_community_sw_groups,
+ .num_groups = ARRAY_SIZE(apl_community_sw_groups),
+ },
+};
+
+static int apl_pinctrl_ofdata_to_platdata(struct udevice *dev)
+{
+ struct p2sb_child_platdata *pplat;
+ const struct pad_community *comm = NULL;
+ int i;
+
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+ struct apl_gpio_platdata *plat = dev_get_platdata(dev);
+ int ret;
+
+ /*
+ * It would be nice to do this in the bind() method, but with
+ * of-platdata binding happens in the order that DM finds things in the
+ * linker list (i.e. alphabetical order by driver name). So the GPIO
+ * device may well be bound before its parent (p2sb), and this call
+ * will fail if p2sb is not bound yet.
+ *
+ * TODO(sjg at chromium.org): Add a parent pointer to child devices in dtoc
+ */
+ ret = p2sb_set_port_id(dev, plat->dtplat.intel_p2sb_port_id);
+ if (ret)
+ return log_msg_ret("Could not set port id", ret);
+#endif
+ /* Attach this device to its community structure */
+ pplat = dev_get_parent_platdata(dev);
+ for (i = 0; i < ARRAY_SIZE(apl_gpio_communities); i++) {
+ if (apl_gpio_communities[i].port == pplat->pid)
+ comm = &apl_gpio_communities[i];
+ }
+
+ return intel_pinctrl_ofdata_to_platdata(dev, comm, 2);
+}
+
+static const struct udevice_id apl_gpio_ids[] = {
+ { .compatible = "intel,apl-pinctrl"},
+ { }
+};
+
+U_BOOT_DRIVER(apl_pinctrl_drv) = {
+ .name = "intel_apl_pinctrl",
+ .id = UCLASS_PINCTRL,
+ .of_match = apl_gpio_ids,
+ .probe = intel_pinctrl_probe,
+ .ops = &intel_pinctrl_ops,
+#if !CONFIG_IS_ENABLED(OF_PLATDATA)
+ .bind = dm_scan_fdt_dev,
+#endif
+ .ofdata_to_platdata = apl_pinctrl_ofdata_to_platdata,
+ .priv_auto_alloc_size = sizeof(struct intel_pinctrl_priv),
+ .platdata_auto_alloc_size = sizeof(struct apl_gpio_platdata),
+};
--
2.24.0.432.g9d3f5f5b63-goog
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