SoC: qcom: add support for SDM845
Hi-end qualcomm chip, introduced in late 2017.
Mostly used in flagship phones and tablets of 2018.
Features:
- arm64 arch
- total of 8 Kryo 385 Gold / Silver cores
- Hexagon 685 DSP
- Adreno 630 GPU
Tested only as second-stage bootloader.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Stephan Gerhold <stephan@gerhold.net>
diff --git a/arch/arm/dts/sdm845.dtsi b/arch/arm/dts/sdm845.dtsi
new file mode 100644
index 0000000..1185b71
--- /dev/null
+++ b/arch/arm/dts/sdm845.dtsi
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Qualcomm SDM845 chip device tree source
+ *
+ * (C) Copyright 2021 Dzmitry Sankouski <dsankouski@gmail.com>
+ *
+ */
+
+/dts-v1/;
+
+#include "skeleton64.dtsi"
+
+/ {
+ soc: soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0 0 0xffffffff>;
+ compatible = "simple-bus";
+
+ gcc: clock-controller@100000 {
+ u-boot,dm-pre-reloc;
+ compatible = "qcom,gcc-sdm845";
+ reg = <0x100000 0x1f0000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
+ gpio_north: gpio_north@3900000 {
+ u-boot,dm-pre-reloc;
+ #gpio-cells = <2>;
+ compatible = "qcom,sdm845-pinctrl";
+ reg = <0x3900000 0x400000>;
+ gpio-count = <150>;
+ gpio-controller;
+ gpio-ranges = <&gpio_north 0 0 150>;
+ gpio-bank-name = "soc_north.";
+ };
+
+ tlmm_north: pinctrl_north@3900000 {
+ u-boot,dm-pre-reloc;
+ compatible = "qcom,tlmm-sdm845";
+ reg = <0x3900000 0x400000>;
+ gpio-count = <150>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&tlmm_north 0 0 150>;
+
+ /* DEBUG UART */
+ qup_uart9: qup-uart9-default {
+ pinmux {
+ pins = "GPIO_4", "GPIO_5";
+ function = "qup9";
+ };
+ };
+ };
+
+ debug_uart: serial@a84000 {
+ compatible = "qcom,msm-geni-uart";
+ reg = <0xa84000 0x4000>;
+ reg-names = "se_phys";
+ clock-names = "se-clk";
+ clocks = <&gcc 0x58>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&qup_uart9>;
+ qcom,wrapper-core = <0x8a>;
+ status = "disabled";
+ };
+
+ spmi@c440000 {
+ compatible = "qcom,spmi-pmic-arb";
+ reg = <0xc440000 0x1100>,
+ <0xc600000 0x2000000>,
+ <0xe600000 0x100000>;
+ reg-names = "cnfg", "core", "obsrvr";
+ #address-cells = <0x1>;
+ #size-cells = <0x1>;
+
+ qcom,revid@100 {
+ compatible = "qcom,qpnp-revid";
+ reg = <0x100 0x100>;
+ };
+
+ pmic0: pm8998@0 {
+ compatible = "qcom,spmi-pmic";
+ reg = <0x0 0x1>;
+ #address-cells = <0x1>;
+ #size-cells = <0x1>;
+
+ pm8998_pon: pm8998_pon@800 {
+ compatible = "qcom,pm8998-pwrkey";
+ reg = <0x800 0x100>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-bank-name = "pm8998_key.";
+ };
+
+ pm8998_gpios: pm8998_gpios@c000 {
+ compatible = "qcom,pm8998-gpio";
+ reg = <0xc000 0x1a00>;
+ gpio-controller;
+ gpio-count = <21>;
+ #gpio-cells = <2>;
+ gpio-bank-name = "pm8998.";
+ };
+ };
+
+ pmic1: pm8998@1 {
+ compatible = "qcom,spmi-pmic";
+ reg = <0x1 0x0>;
+ #address-cells = <0x2>;
+ #size-cells = <0x0>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/mach-snapdragon/Kconfig b/arch/arm/mach-snapdragon/Kconfig
index 0ec74fa..1a6a608 100644
--- a/arch/arm/mach-snapdragon/Kconfig
+++ b/arch/arm/mach-snapdragon/Kconfig
@@ -9,6 +9,10 @@
config SPL_SYS_MALLOC_F_LEN
default 0x2000
+config SDM845
+ bool "Qualcomm Snapdragon 845 SoC"
+ default n
+
choice
prompt "Snapdragon board select"
diff --git a/arch/arm/mach-snapdragon/Makefile b/arch/arm/mach-snapdragon/Makefile
index 709919f..962855e 100644
--- a/arch/arm/mach-snapdragon/Makefile
+++ b/arch/arm/mach-snapdragon/Makefile
@@ -2,6 +2,9 @@
#
# (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
+obj-$(CONFIG_SDM845) += clock-sdm845.o
+obj-$(CONFIG_SDM845) += sysmap-sdm845.o
+obj-$(CONFIG_SDM845) += init_sdm845.o
obj-$(CONFIG_TARGET_DRAGONBOARD820C) += clock-apq8096.o
obj-$(CONFIG_TARGET_DRAGONBOARD820C) += sysmap-apq8096.o
obj-$(CONFIG_TARGET_DRAGONBOARD410C) += clock-apq8016.o
@@ -12,3 +15,4 @@
obj-y += pinctrl-snapdragon.o
obj-y += pinctrl-apq8016.o
obj-y += pinctrl-apq8096.o
+obj-$(CONFIG_SDM845) += pinctrl-sdm845.o
diff --git a/arch/arm/mach-snapdragon/include/mach/sysmap-sdm845.h b/arch/arm/mach-snapdragon/include/mach/sysmap-sdm845.h
new file mode 100644
index 0000000..7165985
--- /dev/null
+++ b/arch/arm/mach-snapdragon/include/mach/sysmap-sdm845.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Qualcomm SDM845 sysmap
+ *
+ * (C) Copyright 2021 Dzmitry Sankouski <dsankouski@gmail.com>
+ */
+#ifndef _MACH_SYSMAP_SDM845_H
+#define _MACH_SYSMAP_SDM845_H
+
+#define TLMM_BASE_ADDR (0x1010000)
+
+/* Strength (sdc1) */
+#define SDC1_HDRV_PULL_CTL_REG (TLMM_BASE_ADDR + 0x0012D000)
+
+/* Clocks: (from CLK_CTL_BASE) */
+#define GPLL0_STATUS (0x0000)
+#define APCS_GPLL_ENA_VOTE (0x52000)
+#define APCS_CLOCK_BRANCH_ENA_VOTE (0x52004)
+
+#define SDCC2_BCR (0x14000) /* block reset */
+#define SDCC2_APPS_CBCR (0x14004) /* branch control */
+#define SDCC2_AHB_CBCR (0x14008)
+#define SDCC2_CMD_RCGR (0x1400c)
+#define SDCC2_CFG_RCGR (0x14010)
+#define SDCC2_M (0x14014)
+#define SDCC2_N (0x14018)
+#define SDCC2_D (0x1401C)
+
+#define RCG2_CFG_REG 0x4
+#define M_REG 0x8
+#define N_REG 0xc
+#define D_REG 0x10
+
+#define SE9_AHB_CBCR (0x25004)
+#define SE9_UART_APPS_CBCR (0x29004)
+#define SE9_UART_APPS_CMD_RCGR (0x18148)
+#define SE9_UART_APPS_CFG_RCGR (0x1814C)
+#define SE9_UART_APPS_M (0x18150)
+#define SE9_UART_APPS_N (0x18154)
+#define SE9_UART_APPS_D (0x18158)
+
+#endif
diff --git a/arch/arm/mach-snapdragon/init_sdm845.c b/arch/arm/mach-snapdragon/init_sdm845.c
new file mode 100644
index 0000000..5f53c21
--- /dev/null
+++ b/arch/arm/mach-snapdragon/init_sdm845.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Common init part for boards based on SDM845
+ *
+ * (C) Copyright 2021 Dzmitry Sankouski <dsankouski@gmail.com>
+ */
+
+#include <init.h>
+#include <env.h>
+#include <common.h>
+#include <asm/system.h>
+#include <asm/gpio.h>
+#include <dm.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+ return fdtdec_setup_mem_size_base();
+}
+
+void reset_cpu(void)
+{
+ psci_system_reset();
+}
+
+__weak int board_init(void)
+{
+ return 0;
+}
+
+/* Check for vol- and power buttons */
+__weak int misc_init_r(void)
+{
+ struct udevice *pon;
+ struct gpio_desc resin;
+ int node, ret;
+
+ ret = uclass_get_device_by_name(UCLASS_GPIO, "pm8998_pon@800", &pon);
+ if (ret < 0) {
+ printf("Failed to find PMIC pon node. Check device tree\n");
+ return 0;
+ }
+
+ node = fdt_subnode_offset(gd->fdt_blob, dev_of_offset(pon),
+ "key_vol_down");
+ if (node < 0) {
+ printf("Failed to find key_vol_down node. Check device tree\n");
+ return 0;
+ }
+ if (gpio_request_by_name_nodev(offset_to_ofnode(node), "gpios", 0,
+ &resin, 0)) {
+ printf("Failed to request key_vol_down button.\n");
+ return 0;
+ }
+ if (dm_gpio_get_value(&resin)) {
+ env_set("key_vol_down", "1");
+ printf("Volume down button pressed\n");
+ } else {
+ env_set("key_vol_down", "0");
+ }
+
+ node = fdt_subnode_offset(gd->fdt_blob, dev_of_offset(pon),
+ "key_power");
+ if (node < 0) {
+ printf("Failed to find key_power node. Check device tree\n");
+ return 0;
+ }
+ if (gpio_request_by_name_nodev(offset_to_ofnode(node), "gpios", 0,
+ &resin, 0)) {
+ printf("Failed to request key_power button.\n");
+ return 0;
+ }
+ if (dm_gpio_get_value(&resin)) {
+ env_set("key_power", "1");
+ printf("Power button pressed\n");
+ } else {
+ env_set("key_power", "0");
+ }
+
+ return 0;
+}
diff --git a/arch/arm/mach-snapdragon/sysmap-sdm845.c b/arch/arm/mach-snapdragon/sysmap-sdm845.c
new file mode 100644
index 0000000..721ac41
--- /dev/null
+++ b/arch/arm/mach-snapdragon/sysmap-sdm845.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Qualcomm SDM845 memory map
+ *
+ * (C) Copyright 2021 Dzmitry Sankouski <dsankousk@gmail.com>
+ */
+
+#include <common.h>
+#include <asm/armv8/mmu.h>
+
+static struct mm_region sdm845_mem_map[] = {
+ {
+ .virt = 0x0UL, /* Peripheral block */
+ .phys = 0x0UL, /* Peripheral block */
+ .size = 0x10000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ .virt = 0x80000000UL, /* DDR */
+ .phys = 0x80000000UL, /* DDR */
+ .size = 0x200000000UL, /* 8GiB - maximum allowed memory */
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_INNER_SHARE
+ }, {
+ /* List terminator */
+ 0,
+ }
+};
+
+struct mm_region *mem_map = sdm845_mem_map;