Add support for TLMM pin controller block (Top Level Mode
Multiplexer) on SDM630/660 SoCs, with support for special pins.
Correct pin configuration is required for working debug UART
and eMMC/SD cards.
SDM630 and SDM660 TLMM blocks are the same.
Signed-off-by: Alexey Minnekhanov <alexey...@postmarketos.org>
Reviewed-by: Caleb Connolly <caleb.conno...@linaro.org>
---
v2: Fixed sdm660_get_function_mux() signature to return an int
and check validity of the selector passed in.
---
drivers/pinctrl/qcom/Kconfig | 7 +
drivers/pinctrl/qcom/Makefile | 1 +
drivers/pinctrl/qcom/pinctrl-sdm660.c | 226 ++++++++++++++++++++++++++
3 files changed, 234 insertions(+)
create mode 100644 drivers/pinctrl/qcom/pinctrl-sdm660.c
diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig
index d3eb6998551..29105301c74 100644
--- a/drivers/pinctrl/qcom/Kconfig
+++ b/drivers/pinctrl/qcom/Kconfig
@@ -41,6 +41,13 @@ config PINCTRL_QCOM_QCS404
Say Y here to enable support for pinctrl on the Snapdragon QCS404 SoC,
as well as the associated GPIO driver.
+config PINCTRL_QCOM_SDM660
+ bool "Qualcomm SDM630/660 Pinctrl"
+ select PINCTRL_QCOM
+ help
+ Say Y here to enable support for pinctrl on the Snapdragon 630/636/660
+ SoCs, as well as the associated GPIO driver.
+
config PINCTRL_QCOM_SDM845
bool "Qualcomm SDM845 GCC"
select PINCTRL_QCOM
diff --git a/drivers/pinctrl/qcom/Makefile b/drivers/pinctrl/qcom/Makefile
index 06d3c95f93a..c814e9dec0b 100644
--- a/drivers/pinctrl/qcom/Makefile
+++ b/drivers/pinctrl/qcom/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_PINCTRL_QCOM_IPQ4019) += pinctrl-ipq4019.o
obj-$(CONFIG_PINCTRL_QCOM_APQ8096) += pinctrl-apq8096.o
obj-$(CONFIG_PINCTRL_QCOM_QCM2290) += pinctrl-qcm2290.o
obj-$(CONFIG_PINCTRL_QCOM_QCS404) += pinctrl-qcs404.o
+obj-$(CONFIG_PINCTRL_QCOM_SDM660) += pinctrl-sdm660.o
obj-$(CONFIG_PINCTRL_QCOM_SDM845) += pinctrl-sdm845.o
obj-$(CONFIG_PINCTRL_QCOM_SM6115) += pinctrl-sm6115.o
obj-$(CONFIG_PINCTRL_QCOM_SM8150) += pinctrl-sm8150.o
diff --git a/drivers/pinctrl/qcom/pinctrl-sdm660.c
b/drivers/pinctrl/qcom/pinctrl-sdm660.c
new file mode 100644
index 00000000000..646d848ffa4
--- /dev/null
+++ b/drivers/pinctrl/qcom/pinctrl-sdm660.c
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Qualcomm SDM630/660 TLMM pinctrl
+ *
+ */
+
+#include <dm.h>
+#include "pinctrl-qcom.h"
+
+#define TLMM_BASE 0x03100000
+#define SOUTH (0x03100000 - TLMM_BASE) /* 0x0 */
+#define CENTER (0x03500000 - TLMM_BASE) /* 0x400000 */
+#define NORTH (0x03900000 - TLMM_BASE) /* 0x800000 */
+
+#define MAX_PIN_NAME_LEN 32
+static char pin_name[MAX_PIN_NAME_LEN] __section(".data");
+
+static const struct pinctrl_function sdm660_pinctrl_functions[] = {
+ { "gpio", 0 },
+ { "blsp_uart2", 3 }, /* gpio 4 and 5, used for debug uart */
+};
+
+static const unsigned int sdm660_pin_offsets[] = {
+ [0] = SOUTH,
+ [1] = SOUTH,
+ [2] = SOUTH,
+ [3] = SOUTH,
+ [4] = NORTH,
+ [5] = SOUTH,
+ [6] = SOUTH,
+ [7] = SOUTH,
+ [8] = NORTH,
+ [9] = NORTH,
+ [10] = NORTH,
+ [11] = NORTH,
+ [12] = NORTH,
+ [13] = NORTH,
+ [14] = NORTH,
+ [15] = NORTH,
+ [16] = CENTER,
+ [17] = CENTER,
+ [18] = CENTER,
+ [19] = CENTER,
+ [20] = SOUTH,
+ [21] = SOUTH,
+ [22] = CENTER,
+ [23] = CENTER,
+ [24] = NORTH,
+ [25] = NORTH,
+ [26] = NORTH,
+ [27] = NORTH,
+ [28] = CENTER,
+ [29] = CENTER,
+ [30] = CENTER,
+ [31] = CENTER,
+ [32] = SOUTH,
+ [33] = SOUTH,
+ [34] = SOUTH,
+ [35] = SOUTH,
+ [36] = SOUTH,
+ [37] = SOUTH,
+ [38] = SOUTH,
+ [39] = SOUTH,
+ [40] = SOUTH,
+ [41] = SOUTH,
+ [42] = SOUTH,
+ [43] = SOUTH,
+ [44] = SOUTH,
+ [45] = SOUTH,
+ [46] = SOUTH,
+ [47] = SOUTH,
+ [48] = SOUTH,
+ [49] = SOUTH,
+ [50] = SOUTH,
+ [51] = SOUTH,
+ [52] = SOUTH,
+ [53] = NORTH,
+ [54] = NORTH,
+ [55] = SOUTH,
+ [56] = SOUTH,
+ [57] = SOUTH,
+ [58] = SOUTH,
+ [59] = NORTH,
+ [60] = NORTH,
+ [61] = NORTH,
+ [62] = NORTH,
+ [63] = NORTH,
+ [64] = SOUTH,
+ [65] = SOUTH,
+ [66] = NORTH,
+ [67] = NORTH,
+ [68] = NORTH,
+ [69] = NORTH,
+ [70] = NORTH,
+ [71] = NORTH,
+ [72] = NORTH,
+ [73] = NORTH,
+ [74] = NORTH,
+ [75] = NORTH,
+ [76] = NORTH,
+ [77] = NORTH,
+ [78] = NORTH,
+ [79] = SOUTH,
+ [80] = SOUTH,
+ [81] = CENTER,
+ [82] = CENTER,
+ [83] = SOUTH,
+ [84] = SOUTH,
+ [85] = SOUTH,
+ [86] = SOUTH,
+ [87] = SOUTH,
+ [88] = SOUTH,
+ [89] = SOUTH,
+ [90] = SOUTH,
+ [91] = SOUTH,
+ [92] = SOUTH,
+ [93] = SOUTH,
+ [94] = SOUTH,
+ [95] = SOUTH,
+ [96] = SOUTH,
+ [97] = SOUTH,
+ [98] = SOUTH,
+ [99] = SOUTH,
+ [100] = SOUTH,
+ [101] = SOUTH,
+ [102] = SOUTH,
+ [103] = SOUTH,
+ [104] = SOUTH,
+ [105] = SOUTH,
+ [106] = SOUTH,
+ [107] = SOUTH,
+ [108] = SOUTH,
+ [109] = SOUTH,
+ [110] = SOUTH,
+ [111] = SOUTH,
+ [112] = SOUTH,
+ [113] = SOUTH,
+};
+
+/*
+ * Special pins - eMMC/SD related: [114..120], in total 7 special pins
+ */
+
+#define SDC_QDSD_PINGROUP(pg_name, ctl, pull, drv) \
+ { \
+ .name = pg_name, \
+ .ctl_reg = ctl, \
+ .io_reg = 0, \
+ .pull_bit = pull, \
+ .drv_bit = drv, \
+ .oe_bit = -1, \
+ .in_bit = -1, \
+ .out_bit = -1, \
+ }
+
+/* All SDC pins are in the NORTH tile */
+static const struct msm_special_pin_data sdm660_special_pins_data[] = {
+ SDC_QDSD_PINGROUP("sdc1_clk", NORTH + 0x9a000, 13, 6),
+ SDC_QDSD_PINGROUP("sdc1_cmd", NORTH + 0x9a000, 11, 3),
+ SDC_QDSD_PINGROUP("sdc1_data", NORTH + 0x9a000, 9, 0),
+ SDC_QDSD_PINGROUP("sdc2_clk", NORTH + 0x9b000, 14, 6),
+ SDC_QDSD_PINGROUP("sdc2_cmd", NORTH + 0x9b000, 11, 3),
+ SDC_QDSD_PINGROUP("sdc2_data", NORTH + 0x9b000, 9, 0),
+ SDC_QDSD_PINGROUP("sdc1_rclk", NORTH + 0x9a000, 15, 0),
+};
+
+static const char *sdm660_get_function_name(struct udevice *dev, unsigned int
selector)
+{
+ return sdm660_pinctrl_functions[selector].name;
+}
+
+static const char *sdm660_get_pin_name(struct udevice *dev, unsigned int
selector)
+{
+ static const char * const special_pins_names[] = {
+ "sdc1_clk", "sdc1_cmd", "sdc1_data",
+ "sdc2_clk", "sdc2_cmd", "sdc2_data",
+ "sdc1_rclk"
+ };
+
+ if (selector >= 114 && selector <= 120)
+ snprintf(pin_name, MAX_PIN_NAME_LEN,
special_pins_names[selector - 114]);
+ else
+ snprintf(pin_name, MAX_PIN_NAME_LEN, "gpio%u", selector);
+
+ return pin_name;
+}
+
+static int sdm660_get_function_mux(__maybe_unused unsigned int pin, unsigned
int selector)
+{
+ if (selector >= 0 && selector < ARRAY_SIZE(sdm660_pinctrl_functions))
+ return sdm660_pinctrl_functions[selector].val;
+ return -EINVAL;
+}
+
+struct msm_pinctrl_data sdm660_data = {
+ .pin_data = {
+ .pin_offsets = sdm660_pin_offsets,
+ .pin_count = ARRAY_SIZE(sdm660_pin_offsets) +
ARRAY_SIZE(sdm660_special_pins_data),
+ .special_pins_start = 114,
+ .special_pins_data = sdm660_special_pins_data,
+ },
+ .functions_count = ARRAY_SIZE(sdm660_pinctrl_functions),
+ .get_function_name = sdm660_get_function_name,
+ .get_function_mux = sdm660_get_function_mux,
+ .get_pin_name = sdm660_get_pin_name,
+};
+
+static const struct udevice_id msm_pinctrl_ids[] = {
+ {
+ .compatible = "qcom,sdm630-pinctrl",
+ .data = (ulong)&sdm660_data
+ },
+ {
+ .compatible = "qcom,sdm660-pinctrl",
+ .data = (ulong)&sdm660_data
+ },
+ { /* Sentinel */ }
+};
+
+U_BOOT_DRIVER(pinctrl_ssdm660) = {
+ .name = "pinctrl_sdm660",
+ .id = UCLASS_NOP,
+ .of_match = msm_pinctrl_ids,
+ .ops = &msm_pinctrl_ops,
+ .bind = msm_pinctrl_bind,
+};
--
2.48.1
