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authorYidi Lin <yidilin@chromium.org>2024-05-29 17:10:01 +0800
committerFelix Held <felix-coreboot@felixheld.de>2024-09-06 13:31:25 +0000
commite7a4515b5b938905833d9d9c6d07fe20a1999aa9 (patch)
tree592c9e6bd37bb6a7e18a58a84599a291cd9c206d /src/soc/mediatek/mt8196
parent4258b8bb3dd7235495dfb2c74253f437ee5fb715 (diff)
soc/mediatek/mt8196: Add EINT support
Add support to configure GPIOs to pull for external interrupts (EINT). BUG=b:334723688 TEST=Talk with Ti50 TPM using IRQ flow. Change-Id: Ibeb2dafcd9909b4afbfa81728700718f01d3818f Signed-off-by: Yidi Lin <yidilin@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/84026 Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/mediatek/mt8196')
-rw-r--r--src/soc/mediatek/mt8196/Makefile.mk2
-rw-r--r--src/soc/mediatek/mt8196/gpio_eint.c308
-rw-r--r--src/soc/mediatek/mt8196/include/soc/addressmap.h9
3 files changed, 317 insertions, 2 deletions
diff --git a/src/soc/mediatek/mt8196/Makefile.mk b/src/soc/mediatek/mt8196/Makefile.mk
index c8845ac764..b11778f066 100644
--- a/src/soc/mediatek/mt8196/Makefile.mk
+++ b/src/soc/mediatek/mt8196/Makefile.mk
@@ -3,7 +3,7 @@
ifeq ($(CONFIG_SOC_MEDIATEK_MT8196),y)
all-y += ../common/flash_controller.c
-all-y += ../common/gpio.c ../common/gpio_op.c gpio.c
+all-y += ../common/gpio.c ../common/gpio_op.c gpio.c gpio_eint.c
all-y += ../common/i2c.c i2c.c
all-$(CONFIG_SPI_FLASH) += spi.c
all-y += timer.c
diff --git a/src/soc/mediatek/mt8196/gpio_eint.c b/src/soc/mediatek/mt8196/gpio_eint.c
new file mode 100644
index 0000000000..edbae73939
--- /dev/null
+++ b/src/soc/mediatek/mt8196/gpio_eint.c
@@ -0,0 +1,308 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/*
+ * This file is created based on MT8196_EINT_Datasheet
+ * Chapter number: 1
+ */
+
+#include <console/console.h>
+#include <soc/addressmap.h>
+#include <soc/gpio.h>
+
+enum {
+ EINT_INVALID = 0,
+ EINT_E,
+ EINT_S,
+ EINT_W,
+ EINT_N,
+ EINT_C,
+};
+
+struct eint_info {
+ uint8_t instance;
+ uint8_t index;
+};
+
+static struct eint_info eint_data[] = {
+ /* instance, index */
+ [0] = { EINT_W, 0 },
+ [1] = { EINT_W, 1 },
+ [2] = { EINT_W, 16 },
+ [3] = { EINT_W, 17 },
+ [4] = { EINT_W, 2 },
+ [5] = { EINT_W, 3 },
+ [6] = { EINT_W, 4 },
+ [7] = { EINT_W, 5 },
+ [8] = { EINT_W, 6 },
+ [9] = { EINT_W, 18 },
+ [10] = { EINT_W, 7 },
+ [11] = { EINT_W, 8 },
+ [12] = { EINT_W, 9 },
+ [13] = { EINT_S, 4 },
+ [14] = { EINT_E, 0 },
+ [15] = { EINT_S, 5 },
+ [16] = { EINT_S, 6 },
+ [17] = { EINT_S, 7 },
+ [18] = { EINT_S, 8 },
+ [19] = { EINT_S, 9 },
+ [20] = { EINT_E, 1 },
+ [21] = { EINT_E, 10 },
+ [22] = { EINT_E, 11 },
+ [23] = { EINT_E, 12 },
+ [24] = { EINT_E, 13 },
+ [25] = { EINT_E, 14 },
+ [26] = { EINT_E, 15 },
+ [27] = { EINT_E, 2 },
+ [28] = { EINT_E, 16 },
+ [29] = { EINT_E, 17 },
+ [30] = { EINT_E, 18 },
+ [31] = { EINT_E, 3 },
+ [32] = { EINT_E, 19 },
+ [33] = { EINT_E, 20 },
+ [34] = { EINT_E, 21 },
+ [35] = { EINT_E, 22 },
+ [36] = { EINT_E, 23 },
+ [37] = { EINT_E, 24 },
+ [38] = { EINT_E, 25 },
+ [39] = { EINT_W, 10 },
+ [40] = { EINT_W, 11 },
+ [41] = { EINT_W, 12 },
+ [42] = { EINT_W, 13 },
+ [43] = { EINT_W, 14 },
+ [44] = { EINT_W, 19 },
+ [45] = { EINT_W, 20 },
+ [46] = { EINT_W, 21 },
+ [47] = { EINT_W, 22 },
+ [48] = { EINT_W, 23 },
+ [49] = { EINT_W, 24 },
+ [50] = { EINT_W, 25 },
+ [51] = { EINT_W, 26 },
+ [60] = { EINT_W, 27 },
+ [61] = { EINT_W, 28 },
+ [62] = { EINT_W, 29 },
+ [63] = { EINT_W, 30 },
+ [64] = { EINT_W, 31 },
+ [65] = { EINT_W, 32 },
+ [70] = { EINT_W, 33 },
+ [71] = { EINT_W, 34 },
+ [72] = { EINT_W, 35 },
+ [73] = { EINT_W, 36 },
+ [74] = { EINT_W, 37 },
+ [79] = { EINT_W, 38 },
+ [80] = { EINT_W, 39 },
+ [81] = { EINT_W, 40 },
+ [82] = { EINT_W, 41 },
+ [83] = { EINT_W, 42 },
+ [84] = { EINT_W, 43 },
+ [85] = { EINT_W, 44 },
+ [86] = { EINT_W, 45 },
+ [87] = { EINT_W, 46 },
+ [88] = { EINT_W, 47 },
+ [89] = { EINT_W, 48 },
+ [90] = { EINT_W, 49 },
+ [91] = { EINT_W, 50 },
+ [92] = { EINT_W, 15 },
+ [93] = { EINT_W, 51 },
+ [94] = { EINT_W, 52 },
+ [95] = { EINT_W, 53 },
+ [96] = { EINT_W, 54 },
+ [97] = { EINT_W, 55 },
+ [98] = { EINT_W, 56 },
+ [103] = { EINT_W, 57 },
+ [106] = { EINT_S, 10 },
+ [107] = { EINT_S, 11 },
+ [108] = { EINT_S, 12 },
+ [109] = { EINT_S, 13 },
+ [110] = { EINT_S, 0 },
+ [111] = { EINT_S, 1 },
+ [112] = { EINT_S, 2 },
+ [113] = { EINT_S, 3 },
+ [114] = { EINT_S, 14 },
+ [115] = { EINT_S, 15 },
+ [116] = { EINT_S, 16 },
+ [117] = { EINT_S, 17 },
+ [118] = { EINT_S, 18 },
+ [119] = { EINT_S, 19 },
+ [120] = { EINT_S, 20 },
+ [121] = { EINT_S, 21 },
+ [122] = { EINT_S, 22 },
+ [125] = { EINT_S, 23 },
+ [126] = { EINT_S, 24 },
+ [127] = { EINT_S, 25 },
+ [128] = { EINT_S, 26 },
+ [129] = { EINT_S, 27 },
+ [130] = { EINT_S, 28 },
+ [137] = { EINT_E, 26 },
+ [138] = { EINT_E, 27 },
+ [139] = { EINT_E, 28 },
+ [140] = { EINT_E, 29 },
+ [141] = { EINT_E, 30 },
+ [142] = { EINT_E, 31 },
+ [143] = { EINT_E, 32 },
+ [144] = { EINT_E, 33 },
+ [145] = { EINT_E, 34 },
+ [146] = { EINT_E, 35 },
+ [147] = { EINT_E, 36 },
+ [148] = { EINT_E, 4 },
+ [149] = { EINT_E, 37 },
+ [150] = { EINT_E, 5 },
+ [151] = { EINT_E, 38 },
+ [152] = { EINT_E, 39 },
+ [153] = { EINT_E, 40 },
+ [154] = { EINT_E, 41 },
+ [155] = { EINT_E, 42 },
+ [156] = { EINT_E, 43 },
+ [157] = { EINT_E, 44 },
+ [158] = { EINT_E, 45 },
+ [159] = { EINT_E, 46 },
+ [160] = { EINT_E, 47 },
+ [161] = { EINT_E, 48 },
+ [162] = { EINT_E, 49 },
+ [163] = { EINT_E, 50 },
+ [164] = { EINT_E, 51 },
+ [165] = { EINT_E, 52 },
+ [166] = { EINT_E, 53 },
+ [167] = { EINT_E, 54 },
+ [168] = { EINT_E, 55 },
+ [169] = { EINT_E, 56 },
+ [170] = { EINT_E, 57 },
+ [171] = { EINT_E, 58 },
+ [172] = { EINT_E, 6 },
+ [173] = { EINT_E, 7 },
+ [174] = { EINT_E, 8 },
+ [175] = { EINT_E, 9 },
+ [178] = { EINT_E, 59 },
+ [179] = { EINT_E, 60 },
+ [180] = { EINT_E, 61 },
+ [181] = { EINT_E, 62 },
+ [182] = { EINT_E, 63 },
+ [183] = { EINT_E, 64 },
+ [184] = { EINT_E, 65 },
+ [185] = { EINT_E, 66 },
+ [186] = { EINT_N, 6 },
+ [187] = { EINT_N, 7 },
+ [192] = { EINT_N, 8 },
+ [193] = { EINT_N, 9 },
+ [196] = { EINT_N, 10 },
+ [197] = { EINT_N, 11 },
+ [204] = { EINT_N, 12 },
+ [205] = { EINT_N, 13 },
+ [206] = { EINT_N, 14 },
+ [207] = { EINT_N, 0 },
+ [208] = { EINT_N, 1 },
+ [209] = { EINT_N, 2 },
+ [210] = { EINT_N, 15 },
+ [211] = { EINT_N, 3 },
+ [212] = { EINT_N, 4 },
+ [213] = { EINT_N, 5 },
+ [216] = { EINT_N, 16 },
+ [217] = { EINT_N, 17 },
+ [218] = { EINT_N, 18 },
+ [219] = { EINT_N, 19 },
+ [220] = { EINT_N, 20 },
+ [221] = { EINT_N, 21 },
+ [222] = { EINT_N, 22 },
+ [223] = { EINT_N, 23 },
+ [224] = { EINT_N, 24 },
+ [225] = { EINT_N, 25 },
+ [226] = { EINT_N, 26 },
+ [227] = { EINT_N, 27 },
+ [228] = { EINT_N, 28 },
+ [229] = { EINT_N, 29 },
+ [241] = { EINT_N, 30 },
+ [242] = { EINT_N, 31 },
+ [243] = { EINT_N, 32 },
+ [245] = { EINT_N, 45 },
+ [251] = { EINT_E, 67 },
+ [252] = { EINT_E, 68 },
+ [253] = { EINT_E, 69 },
+ [254] = { EINT_E, 70 },
+ [255] = { EINT_E, 71 },
+ [256] = { EINT_E, 72 },
+ [257] = { EINT_E, 73 },
+ [258] = { EINT_E, 74 },
+ [259] = { EINT_N, 33 },
+ [260] = { EINT_N, 34 },
+ [261] = { EINT_N, 35 },
+ [262] = { EINT_N, 36 },
+ [263] = { EINT_N, 37 },
+ [264] = { EINT_N, 38 },
+ [265] = { EINT_N, 39 },
+ [266] = { EINT_N, 40 },
+ [267] = { EINT_N, 41 },
+ [268] = { EINT_N, 42 },
+ [269] = { EINT_N, 43 },
+ [270] = { EINT_N, 44 },
+ [271] = { EINT_C, 0 },
+ [272] = { EINT_C, 1 },
+ [273] = { EINT_C, 2 },
+ [274] = { EINT_C, 3 },
+ [275] = { EINT_C, 4 },
+ [276] = { EINT_C, 5 },
+ [277] = { EINT_C, 6 },
+ [278] = { EINT_C, 7 },
+ [279] = { EINT_C, 8 },
+ [280] = { EINT_C, 9 },
+ [281] = { EINT_C, 10 },
+ [282] = { EINT_C, 11 },
+ [283] = { EINT_C, 12 },
+ [284] = { EINT_C, 13 },
+ [285] = { EINT_C, 14 },
+ [286] = { EINT_C, 15 },
+ [287] = { EINT_C, 16 },
+ [288] = { EINT_C, 17 },
+ [289] = { EINT_C, 18 },
+ [290] = { EINT_C, 19 },
+ [291] = { EINT_C, 20 },
+ [292] = { EINT_C, 21 },
+};
+_Static_assert(ARRAY_SIZE(eint_data) == 293);
+
+void gpio_calc_eint_pos_bit(gpio_t gpio, u32 *pos, u32 *bit)
+{
+ uint32_t idx = gpio.id;
+
+ *pos = 0;
+ *bit = 0;
+
+ if (idx >= ARRAY_SIZE(eint_data))
+ return;
+
+ uint8_t index = eint_data[idx].index;
+
+ *pos = index / MAX_EINT_REG_BITS;
+ *bit = index % MAX_EINT_REG_BITS;
+}
+
+struct eint_regs *gpio_get_eint_reg(gpio_t gpio)
+{
+ uint32_t idx = gpio.id;
+ uintptr_t addr;
+
+ if (idx >= ARRAY_SIZE(eint_data))
+ return NULL;
+
+ switch (eint_data[idx].instance) {
+ case EINT_E:
+ addr = EINT_E_BASE;
+ break;
+ case EINT_S:
+ addr = EINT_S_BASE;
+ break;
+ case EINT_W:
+ addr = EINT_W_BASE;
+ break;
+ case EINT_N:
+ addr = EINT_N_BASE;
+ break;
+ case EINT_C:
+ addr = EINT_C_BASE;
+ break;
+ default:
+ printk(BIOS_ERR, "%s: Failed to look up a valid EINT base for %d\n",
+ __func__, idx);
+ return NULL;
+ }
+
+ return (void *)addr;
+}
diff --git a/src/soc/mediatek/mt8196/include/soc/addressmap.h b/src/soc/mediatek/mt8196/include/soc/addressmap.h
index 67faa0ea74..c50ab6e53a 100644
--- a/src/soc/mediatek/mt8196/include/soc/addressmap.h
+++ b/src/soc/mediatek/mt8196/include/soc/addressmap.h
@@ -14,6 +14,14 @@ enum {
};
enum {
+ EINT_E_BASE = IO_PHYS + 0x02080000,
+ EINT_S_BASE = IO_PHYS + 0x02880000,
+ EINT_W_BASE = IO_PHYS + 0x03080000,
+ EINT_N_BASE = IO_PHYS + 0x03880000,
+ EINT_C_BASE = IO_PHYS + 0x0C54A000,
+};
+
+enum {
CKSYS_BASE = IO_PHYS + 0x00000000,
APMIXED_BASE = IO_PHYS + 0x00000800,
INFRACFG_AO_BASE = IO_PHYS + 0x00001000,
@@ -103,7 +111,6 @@ enum {
SPMI_MST_BASE = IO_PHYS + 0x0C01C000,
SPMI_MST_P_BASE = IO_PHYS + 0x0C01C800,
SYSTIMER_BASE = IO_PHYS + 0x0C400000,
- EINT_BASE = IO_PHYS + 0x0C54A000,
DSI0_BASE = IO_PHYS + 0x22490000,
DISP_DVO0 = IO_PHYS + 0x224C0000,
EDP_BASE = IO_PHYS + 0x2EC40000,