+ for providing a common interface for various peripherals like
UART, I2C, SPI,
+ etc.
+
config ROCKCHIP_EFUSE
bool "Rockchip e-fuse support"
depends on MISC
help
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index
dac805e4cdd48a8127f37d68d9fb5ba0bd17ab15..6866edbd8119268c0cc03abdc8529bd191f1c2d8 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -67,8 +67,9 @@ obj-$(CONFIG_QFW_PIO) += qfw_pio.o
obj-$(CONFIG_QFW_MMIO) += qfw_mmio.o
obj-$(CONFIG_QFW_SMBIOS) += qfw_smbios.o
obj-$(CONFIG_SANDBOX) += qfw_sandbox.o
endif
+obj-$(CONFIG_QCOM_GENI) += qcom_geni.o
obj-$(CONFIG_$(PHASE_)ROCKCHIP_EFUSE) += rockchip-efuse.o
obj-$(CONFIG_$(PHASE_)ROCKCHIP_OTP) += rockchip-otp.o
obj-$(CONFIG_$(PHASE_)ROCKCHIP_IODOMAIN) += rockchip-io-domain.o
obj-$(CONFIG_SANDBOX) += syscon_sandbox.o misc_sandbox.o
diff --git a/drivers/misc/qcom_geni.c b/drivers/misc/qcom_geni.c
new file mode 100644
index
0000000000000000000000000000000000000000..2b652765aa310b5a21d4aa99b50842c2e17e5942
--- /dev/null
+++ b/drivers/misc/qcom_geni.c
@@ -0,0 +1,576 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights
reserved.
+ * Copyright (c) 2025, Linaro Ltd.
+ */
+
+#include <blk.h>
+#include <part.h>
+#include <dm/device.h>
+#include <dm/read.h>
+#include <dm/device-internal.h>
+#include <dm/lists.h>
+#include <elf.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <misc.h>
+#include <linux/printk.h>
+#include <soc/qcom/geni-se.h>
+#include <soc/qcom/qup-fw-load.h>
+#include <dm/device_compat.h>
+
+struct qup_se_rsc {
+ phys_addr_t base;
+ phys_addr_t wrapper_base;
+ struct udevice *dev;
+
+ enum geni_se_xfer_mode mode;
+ enum geni_se_protocol_type protocol;
+};
+
+struct geni_se_plat {
+ bool need_firmware_load;
+};
+
+/**
+ * geni_enable_interrupts() Enable interrupts.
+ * @rsc: Pointer to a structure representing SE-related resources.
+ *
+ * Enable the required interrupts during the firmware load process.
+ *
+ * Return: None.
+ */
+static void geni_enable_interrupts(struct qup_se_rsc *rsc)
+{
+ u32 reg_value;
+
+ /* Enable required interrupts. */
+ writel_relaxed(M_COMMON_GENI_M_IRQ_EN, rsc->base +
GENI_M_IRQ_ENABLE);
+
+ reg_value = S_CMD_OVERRUN_EN | S_ILLEGAL_CMD_EN |
+ S_CMD_CANCEL_EN | S_CMD_ABORT_EN |
+ S_GP_IRQ_0_EN | S_GP_IRQ_1_EN |
+ S_GP_IRQ_2_EN | S_GP_IRQ_3_EN |
+ S_RX_FIFO_WR_ERR_EN | S_RX_FIFO_RD_ERR_EN;
+ writel_relaxed(reg_value, rsc->base + GENI_S_IRQ_ENABLE);
+
+ /* DMA mode configuration. */
+ reg_value = DMA_TX_IRQ_EN_SET_RESET_DONE_EN_SET_BMSK |
+ DMA_TX_IRQ_EN_SET_SBE_EN_SET_BMSK |
+ DMA_TX_IRQ_EN_SET_DMA_DONE_EN_SET_BMSK;
+ writel_relaxed(reg_value, rsc->base + DMA_TX_IRQ_EN_SET);
+ reg_value = DMA_RX_IRQ_EN_SET_FLUSH_DONE_EN_SET_BMSK |
+ DMA_RX_IRQ_EN_SET_RESET_DONE_EN_SET_BMSK |
+ DMA_RX_IRQ_EN_SET_SBE_EN_SET_BMSK |
+ DMA_RX_IRQ_EN_SET_DMA_DONE_EN_SET_BMSK;
+ writel_relaxed(reg_value, rsc->base + DMA_RX_IRQ_EN_SET);
+}
+
+/**
+ * geni_flash_fw_revision() - Flash the firmware revision.
+ * @rsc: Pointer to a structure representing SE-related resources.
+ * @hdr: Pointer to the ELF header of the Serial Engine.
+ *
+ * Flash the firmware revision and protocol into the respective
register.
+ *
+ * Return: None.
+ */
+static void geni_flash_fw_revision(struct qup_se_rsc *rsc, struct
elf_se_hdr *hdr)
+{
+ u32 reg_value;
+
+ /* Flash firmware revision register. */
+ reg_value = (hdr->serial_protocol << FW_REV_PROTOCOL_SHFT) |
+ (hdr->fw_version & 0xFF << FW_REV_VERSION_SHFT);
+ writel_relaxed(reg_value, rsc->base + SE_GENI_FW_REVISION);
+
+ reg_value = (hdr->serial_protocol << FW_REV_PROTOCOL_SHFT) |
+ (hdr->fw_version & 0xFF << FW_REV_VERSION_SHFT);
+
+ writel_relaxed(reg_value, rsc->base + SE_S_FW_REVISION);
+}
+
+/**
+ * geni_configure_xfer_mode() - Set the transfer mode.
+ * @rsc: Pointer to a structure representing SE-related resources.
+ *
+ * Set the transfer mode to either FIFO or DMA according to the mode
specified by the protocol
+ * driver.
+ *
+ * Return: 0 if successful, otherwise return an error value.
+ */
+static int geni_configure_xfer_mode(struct qup_se_rsc *rsc)
+{
+ /* Configure SE FIFO, DMA or GSI mode. */
+ switch (rsc->mode) {
+ case GENI_GPI_DMA:
+ geni_setbits32(rsc->base + QUPV3_SE_GENI_DMA_MODE_EN,
+ GENI_DMA_MODE_EN_GENI_DMA_MODE_EN_BMSK);
+ writel_relaxed(0x0, rsc->base + SE_IRQ_EN);
+ writel_relaxed(SE_GSI_EVENT_EN_BMSK, rsc->base +
SE_GSI_EVENT_EN);
+ break;
+
+ case GENI_SE_FIFO:
+ geni_clrbits32(rsc->base + QUPV3_SE_GENI_DMA_MODE_EN,
+ GENI_DMA_MODE_EN_GENI_DMA_MODE_EN_BMSK);
+ writel_relaxed(SE_IRQ_EN_RMSK, rsc->base + SE_IRQ_EN);
+ writel_relaxed(0x0, rsc->base + SE_GSI_EVENT_EN);
+ break;
+
+ case GENI_SE_DMA:
+ geni_setbits32(rsc->base + QUPV3_SE_GENI_DMA_MODE_EN,
+ GENI_DMA_MODE_EN_GENI_DMA_MODE_EN_BMSK);
+ writel_relaxed(SE_IRQ_EN_RMSK, rsc->base + SE_IRQ_EN);
+ writel_relaxed(0x0, rsc->base + SE_GSI_EVENT_EN);
+ break;
+
+ default:
+ dev_err(rsc->dev, "invalid se mode: %d\n", rsc->mode);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+/**
+ * geni_config_common_control() - Configure common CGC and disable
high priority interrupt.
+ * @rsc: Pointer to a structure representing SE-related resources.
+ *
+ * Configure the common CGC and disable high priority interrupts
until the current low priority
+ * interrupts are handled.
+ *
+ * Return: None.
+ */
+static void geni_config_common_control(struct qup_se_rsc *rsc)
+{
+ /*
+ * Disable high priority interrupt until current low priority
interrupts are handled.
+ */
+ geni_setbits32(rsc->wrapper_base + QUPV3_COMMON_CFG,
+ FAST_SWITCH_TO_HIGH_DISABLE_BMASK);
+
+ /*
+ * Set AHB_M_CLK_CGC_ON to indicate hardware controls se-wrapper
cgc clock.
+ */
+ geni_setbits32(rsc->wrapper_base + QUPV3_SE_AHB_M_CFG,
+ AHB_M_CLK_CGC_ON_BMASK);
+
+ /* Let hardware to control common cgc. */
+ geni_setbits32(rsc->wrapper_base + QUPV3_COMMON_CGC_CTRL,
+ COMMON_CSR_SLV_CLK_CGC_ON_BMASK);
+}
+
+static int load_se_firmware(struct qup_se_rsc *rsc, struct elf_se_hdr
*hdr)
+{
+ const u32 *fw_val_arr, *cfg_val_arr;
+ const u8 *cfg_idx_arr;
+ u32 i, reg_value, mask, ramn_cnt;
+ int ret;
+
+ fw_val_arr = (const u32 *)((u8 *)hdr + hdr->fw_offset);
+ cfg_idx_arr = (const u8 *)hdr + hdr->cfg_idx_offset;
+ cfg_val_arr = (const u32 *)((u8 *)hdr + hdr->cfg_val_offset);
+
+ geni_config_common_control(rsc);
+
+ /* Allows to drive corresponding data according to hardware
value. */
+ writel_relaxed(0x0, rsc->base + GENI_OUTPUT_CTRL);
+
+ /* Set SCLK and HCLK to program RAM */
+ geni_setbits32(rsc->base + GENI_CGC_CTRL,
GENI_CGC_CTRL_PROG_RAM_SCLK_OFF_BMSK |
+ GENI_CGC_CTRL_PROG_RAM_HCLK_OFF_BMSK);
+ writel_relaxed(0x0, rsc->base + SE_GENI_CLK_CTRL);
+ geni_clrbits32(rsc->base + GENI_CGC_CTRL,
GENI_CGC_CTRL_PROG_RAM_SCLK_OFF_BMSK |
+ GENI_CGC_CTRL_PROG_RAM_HCLK_OFF_BMSK);
+
+ /* Enable required clocks for DMA CSR, TX and RX. */
+ reg_value = DMA_GENERAL_CFG_AHB_SEC_SLV_CLK_CGC_ON_BMSK |
+ DMA_GENERAL_CFG_DMA_AHB_SLV_CLK_CGC_ON_BMSK |
+ DMA_GENERAL_CFG_DMA_TX_CLK_CGC_ON_BMSK |
+ DMA_GENERAL_CFG_DMA_RX_CLK_CGC_ON_BMSK;
+
+ geni_setbits32(rsc->base + DMA_GENERAL_CFG, reg_value);
+
+ /* Let hardware control CGC by default. */
+ writel_relaxed(DEFAULT_CGC_EN, rsc->base + GENI_CGC_CTRL);
+
+ /* Set version of the configuration register part of firmware. */
+ writel_relaxed(hdr->cfg_version, rsc->base +
GENI_INIT_CFG_REVISION);
+ writel_relaxed(hdr->cfg_version, rsc->base +
GENI_S_INIT_CFG_REVISION);
+
+ /* Configure GENI primitive table. */
+ for (i = 0; i < hdr->cfg_size_in_items; i++)
+ writel_relaxed(cfg_val_arr[i],
+ rsc->base + GENI_CFG_REG0 + (cfg_idx_arr[i] *
sizeof(u32)));
+
+ /* Configure condition for assertion of RX_RFR_WATERMARK
condition. */
+ reg_value = readl_relaxed(rsc->base + QUPV3_SE_HW_PARAM_1);
+ mask = (reg_value >> RX_FIFO_WIDTH_BIT) & RX_FIFO_WIDTH_MASK;
+ writel_relaxed(mask - 2, rsc->base + GENI_RX_RFR_WATERMARK_REG);
+
+ /* Let hardware control CGC */
+ geni_setbits32(rsc->base + GENI_OUTPUT_CTRL,
DEFAULT_IO_OUTPUT_CTRL_MSK);
+
+ ret = geni_configure_xfer_mode(rsc);
+ if (ret) {
+ dev_err(rsc->dev, "failed to configure xfer mode: %d\n", ret);
+ return ret;
+ }
+
+ geni_enable_interrupts(rsc);
+
+ geni_flash_fw_revision(rsc, hdr);
+
+ ramn_cnt = hdr->fw_size_in_items;
+ if (hdr->fw_size_in_items % 2 != 0)
+ ramn_cnt++;
+
+ if (ramn_cnt >= MAX_GENI_CFG_RAMn_CNT) {
+ dev_err(rsc->dev, "firmware size is too large\n");
+ return -EINVAL;
+ }
+
+ /* Program RAM address space. */
+ for (i = 0; i < hdr->fw_size_in_items; i++)
+ writel_relaxed(fw_val_arr[i], rsc->base + SE_GENI_CFG_RAMN +
i * sizeof(u32));
+
+ /* Put default values on GENI's output pads. */
+ writel_relaxed(0x1, rsc->base + GENI_FORCE_DEFAULT_REG);
+
+ /* High to low SCLK and HCLK to finish RAM. */
+ geni_setbits32(rsc->base + GENI_CGC_CTRL,
GENI_CGC_CTRL_PROG_RAM_SCLK_OFF_BMSK |
+ GENI_CGC_CTRL_PROG_RAM_HCLK_OFF_BMSK);
+ geni_setbits32(rsc->base + SE_GENI_CLK_CTRL,
GENI_CLK_CTRL_SER_CLK_SEL_BMSK);
+ geni_clrbits32(rsc->base + GENI_CGC_CTRL,
GENI_CGC_CTRL_PROG_RAM_SCLK_OFF_BMSK |
+ GENI_CGC_CTRL_PROG_RAM_HCLK_OFF_BMSK);
+
+ /* Serial engine DMA interface is enabled. */
+ geni_setbits32(rsc->base + SE_DMA_IF_EN, DMA_IF_EN_DMA_IF_EN_BMSK);
+
+ /* Enable or disable FIFO interface of the serial engine. */
+ if (rsc->mode == GENI_SE_FIFO)
+ geni_clrbits32(rsc->base + SE_FIFO_IF_DISABLE, FIFO_IF_DISABLE);
+ else
+ geni_setbits32(rsc->base + SE_FIFO_IF_DISABLE, FIFO_IF_DISABLE);
+
+ return 0;
+}
+
+/**
+ * elf_phdr_valid() - Validate an ELF header.
+ * @phdr: Pointer to the ELF header.
+ *
+ * Validate the ELF header by comparing the fields stored in p_flags
and the payload type.
+ *
+ * Return: true if the validation is successful, false otherwise.
+ */
+static bool elf_phdr_valid(const Elf32_Phdr *phdr)
+{
+ if (phdr->p_type != PT_LOAD || !phdr->p_memsz)
+ return false;
+
+ if (MI_PBT_PAGE_MODE_VALUE(phdr->p_flags) ==
MI_PBT_NON_PAGED_SEGMENT &&
+ MI_PBT_SEGMENT_TYPE_VALUE(phdr->p_flags) !=
MI_PBT_HASH_SEGMENT &&
+ MI_PBT_ACCESS_TYPE_VALUE(phdr->p_flags) !=
MI_PBT_NOTUSED_SEGMENT &&
+ MI_PBT_ACCESS_TYPE_VALUE(phdr->p_flags) !=
MI_PBT_SHARED_SEGMENT)
+ return true;
+
+ return false;
+}
+
+/**
+ * valid_seg_size() - Validate the segment size.
+ * @pelfseg: Pointer to the ELF header.
+ * @p_filesz: Pointer to the file size.
+ *
+ * Validate the ELF segment size by comparing the file size.
+ *
+ * Return: true if the segment is valid, false if the segment is
invalid.
+ */
+static bool valid_seg_size(struct elf_se_hdr *pelfseg, Elf32_Word
p_filesz)
+{
+ if (p_filesz >= pelfseg->fw_offset + pelfseg->fw_size_in_items *
sizeof(u32) &&
+ p_filesz >= pelfseg->cfg_idx_offset + pelfseg-
>cfg_size_in_items * sizeof(u8) &&
+ p_filesz >= pelfseg->cfg_val_offset + pelfseg-
>cfg_size_in_items * sizeof(u32))
+ return true;
+ return false;
+}
+
+/**
+ * read_elf() - Read an ELF file.
+ * @rsc: Pointer to the SE resources structure.
+ * @fw: Pointer to the firmware buffer.
+ * @pelfseg: Pointer to the SE-specific ELF header.
+ * @phdr: Pointer to one of the valid headers from the list in the
firmware buffer.
+ *
+ * Read the ELF file and output a pointer to the header data, which
contains the firmware data and
+ * any other details.
+ *
+ * Return: 0 if successful, otherwise return an error value.
+ */
+static int read_elf(struct qup_se_rsc *rsc, const void *fw,
+ struct elf_se_hdr **pelfseg)
+{
+ Elf32_Phdr *phdr;
+ const Elf32_Ehdr *ehdr = (const Elf32_Ehdr *)fw;
+ Elf32_Phdr *phdrs = (Elf32_Phdr *)(ehdr + 1);
+ const u8 *addr;
+ int i;
+
+ ehdr = (Elf32_Ehdr *)fw;
+
+ if (ehdr->e_phnum < 2)
+ return -EINVAL;
+
+ for (i = 0; i < ehdr->e_phnum; i++) {
+ phdr = &phdrs[i];
+ if (!elf_phdr_valid(phdr))
+ continue;
+
+ if (phdr->p_filesz >= sizeof(struct elf_se_hdr)) {
+ addr = fw + phdr->p_offset;
+ *pelfseg = (struct elf_se_hdr *)addr;
+
+ if ((*pelfseg)->magic == MAGIC_NUM_SE &&
+ (*pelfseg)->version == 1 &&
+ valid_seg_size(*pelfseg, phdr->p_filesz) &&
+ (*pelfseg)->serial_protocol == rsc->protocol &&
+ (*pelfseg)->serial_protocol != GENI_SE_NONE)
+ return 0;
+ }
+ }
+ return -EINVAL;
+}
+
+int qcom_geni_load_firmware(phys_addr_t qup_base,
+ struct udevice *dev)
+{
+ struct qup_se_rsc rsc;
+ struct elf_se_hdr *hdr;
+ int ret;
+ void *fw;
+
+ rsc.dev = dev;
+ rsc.base = qup_base;
+ rsc.wrapper_base = dev_read_addr(dev->parent);
+
+ /* FIXME: GSI DMA mode if device has property qcom,gsi-dma-
allowed */
+ rsc.mode = GENI_SE_FIFO;
+
+ switch (device_get_uclass_id(dev)) {
+ case UCLASS_I2C:
+ rsc.protocol = GENI_SE_I2C;
+ break;
+ case UCLASS_SPI:
+ rsc.protocol = GENI_SE_SPI;
+ break;
+ case UCLASS_SERIAL:
+ rsc.protocol = GENI_SE_UART;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* The firmware blob is the private data of the GENI wrapper
(parent) */
+ fw = dev_get_priv(dev->parent);
+
+ ret = read_elf(&rsc, fw, &hdr);
+ if (ret) {
+ dev_err(dev, "Failed to read ELF: %d\n", ret);
+ return ret;
+ }
+
+ printf("Loading firmware for %s\n", dev->name);
+
+ return load_se_firmware(&rsc, hdr);
+}
+
+/*
+ * We need to determine if firmware loading is necessary. Best way to
do that is to check the FW
+ * revision of each QUP and see if it has already been loaded.
+ */
+static int geni_se_of_to_plat(struct udevice *dev)
+{
+ ofnode child;
+ struct resource res;
+ u32 proto;
+ struct geni_se_plat *plat = dev_get_plat(dev);
+
+ plat->need_firmware_load = false;
+
+ dev_for_each_subnode(child, dev) {
+ if (!ofnode_is_enabled(child))
+ continue;
+
+ if (ofnode_read_resource(child, 0, &res))
+ continue;
+
+ proto = readl(res.start + GENI_FW_REVISION_RO);
+ proto &= FW_REV_PROTOCOL_MSK;
+ proto >>= FW_REV_PROTOCOL_SHFT;
+
+ if (proto == GENI_SE_INVALID_PROTO) {
+ plat->need_firmware_load = true;
+ } else {
+ /* Bind any devices that don't need firmware loading now. */
+ lists_bind_fdt(dev, child, NULL, NULL, false);
+ }
+ }
+
+ return 0;
+}
+
+#define QUPFW_PART_TYPE_GUID "21d1219f-2ed1-4ab4-930a-41a16ae75f7f"
+
+static int find_qupfw_part(struct udevice **blk_dev, struct
disk_partition *part_info)
+{
+ struct blk_desc *desc;
+ int ret, partnum;
+
+ uclass_foreach_dev_probe(UCLASS_BLK, *blk_dev) {
+ if (device_get_uclass_id(*blk_dev) != UCLASS_BLK)
+ continue;
+
+ desc = dev_get_uclass_plat(*blk_dev);
+ if (!desc || desc->part_type == PART_TYPE_UNKNOWN)
+ continue;
+ for (partnum = 1;; partnum++) {
+ ret = part_get_info(desc, partnum, part_info);
+ if (ret)
+ break;
+ if (!strcmp(part_info->type_guid, QUPFW_PART_TYPE_GUID))
+ return 0;
+ }
+ }
+
+ return -ENOENT;
+}
+
+static int probe_children_load_firmware(struct udevice *dev)
+{
+ struct geni_se_plat *plat;
+ ofnode child;
+ struct udevice *child_dev;
+ struct resource res;
+ u32 proto;
+
+ plat = dev_get_plat(dev);
+
+ dev_for_each_subnode(child, dev) {
+ if (!ofnode_is_enabled(child))
+ continue;
+
+ if (ofnode_read_resource(child, 0, &res))
+ continue;
+
+ proto = readl(res.start + GENI_FW_REVISION_RO);
+ proto &= FW_REV_PROTOCOL_MSK;
+ proto >>= FW_REV_PROTOCOL_SHFT;
+
+ if (proto != GENI_SE_INVALID_PROTO)
+ continue;
+
+ /*
+ * Now we're ready, bind and probe the child, this will
trigger firmware loading.
+ */
+ lists_bind_fdt(dev, child, &child_dev, NULL, false);
+ debug("Probing child %s for fw loading\n", child_dev->name);
+ device_probe(child_dev);
+ }
+
+ return 0;
+}
+
+#define MAX_FW_BUF_SIZE (128 * 1024)
+
+/*
+ * Load firmware for QCOM GENI peripherals from the dedicated
partition on storage and bind/probe
+ * all the peripheral devices that need firmware to be loaded.
+ */
+static int qcom_geni_fw_initialise(void)
+{
+ debug("Loading firmware for QCOM GENI SE\n");
+ struct udevice *geni_wrapper, *blk_dev;
+ struct disk_partition part_info;
+ int ret;
+ void *fw_buf;
+ size_t fw_size = MAX_FW_BUF_SIZE;
+ struct geni_se_plat *plat;
+
+ /* Find the first GENI SE wrapper that needs fw loading */
+ for (uclass_first_device(UCLASS_MISC, &geni_wrapper);
+ geni_wrapper;
+ uclass_next_device(&geni_wrapper)) {
+ if (device_get_uclass_id(geni_wrapper) == UCLASS_MISC &&
+ !strcmp(geni_wrapper->driver->name, "geni-se-qup")) {
+ plat = dev_get_plat(geni_wrapper);
+ if (plat->need_firmware_load)
+ break;
+ }
+ }
+ if (!geni_wrapper) {
+ printf("GENI SE wrapper not found\n");
+ return 0;
+ }
+
+ ret = find_qupfw_part(&blk_dev, &part_info);
+ if (ret) {
+ printf("QUP firmware partition not found\n");
+ return 0;
+ }
+
+ if (part_info.size * part_info.blksz > MAX_FW_BUF_SIZE) {
+ printf("Firmware partition too large\n");
+ return -EINVAL;
+ }
+ fw_size = part_info.size * part_info.blksz;
+
+ fw_buf = malloc(fw_size);
+ if (!fw_buf) {
+ printf("Failed to allocate buffer for firmware\n");
+ return -ENOMEM;
+ }
+ memset(fw_buf, 0, fw_size);
+
+ ret = blk_read(blk_dev, part_info.start, part_info.size, fw_buf);
+ if (ret < 0) {
+ printf("Failed to read firmware from partition\n");
+ free(fw_buf);
+ return 0;
+ }
+
+ /*
+ * OK! Firmware is loaded, now bind and probe remaining children.
They will attempt to load
+ * firmware during probe. Do this for each GENI SE wrapper that
needs firmware loading.
+ */
+ for (; geni_wrapper;
+ uclass_next_device(&geni_wrapper)) {
+ if (device_get_uclass_id(geni_wrapper) == UCLASS_MISC &&
+ !strcmp(geni_wrapper->driver->name, "geni-se-qup")) {
+ plat = dev_get_plat(geni_wrapper);
+ if (plat->need_firmware_load) {
+ dev_set_priv(geni_wrapper, fw_buf);
+ probe_children_load_firmware(geni_wrapper);
+ }
+ }
+ }
+
+ return 0;
+}
+
+EVENT_SPY_SIMPLE(EVT_LAST_STAGE_INIT, qcom_geni_fw_initialise);
+
+static const struct udevice_id geni_ids[] = {
+ { .compatible = "qcom,geni-se-qup" },
+ {}
+};
+
+U_BOOT_DRIVER(sifive_otp) = {
+ .name = "geni-se-qup",
+ .id = UCLASS_MISC,
+ .of_match = geni_ids,
+ .of_to_plat = geni_se_of_to_plat,
+ .plat_auto = sizeof(struct geni_se_plat),
+ .flags = DM_FLAG_PRE_RELOC | DM_FLAG_DEFAULT_PD_CTRL_OFF,
+};
diff --git a/drivers/serial/serial_msm_geni.c b/drivers/serial/
serial_msm_geni.c
index
cb6c09fdd09eecdcbdc7a9f6b53ce14e97a1919b..44603ead77cd9f7948a2bf52ebddfebbfeb9f1c2 100644
--- a/drivers/serial/serial_msm_geni.c
+++ b/drivers/serial/serial_msm_geni.c
@@ -604,21 +604,8 @@ U_BOOT_DRIVER(serial_msm_geni) = {
.ops = &msm_serial_ops,
.flags = DM_FLAG_PRE_RELOC | DM_FLAG_DEFAULT_PD_CTRL_OFF,
};
-static const struct udevice_id geniqup_ids[] = {
- { .compatible = "qcom,geni-se-qup" },
- { }
-};
-
-U_BOOT_DRIVER(geni_se_qup) = {
- .name = "geni-se-qup",
- .id = UCLASS_NOP,
- .of_match = geniqup_ids,
- .bind = dm_scan_fdt_dev,
- .flags = DM_FLAG_PRE_RELOC | DM_FLAG_DEFAULT_PD_CTRL_OFF,
-};
-
#ifdef CONFIG_DEBUG_UART_MSM_GENI
static struct msm_serial_data init_serial_data = {
.base = CONFIG_VAL(DEBUG_UART_BASE)
diff --git a/include/soc/qcom/geni-se.h b/include/soc/qcom/geni-se.h
index
698a9256d2656d3fd207cb48a9f4918afc365a1b..fc9a8e82cd88a63cd50dcfb0647fa28b53adad37 100644
--- a/include/soc/qcom/geni-se.h
+++ b/include/soc/qcom/geni-se.h
@@ -5,16 +5,24 @@
#ifndef _QCOM_GENI_SE
#define _QCOM_GENI_SE
+enum geni_se_xfer_mode {
+ GENI_SE_INVALID,
+ GENI_SE_FIFO,
+ GENI_SE_DMA,
+ GENI_GPI_DMA,
+};
+
/* Protocols supported by GENI Serial Engines */
enum geni_se_protocol_type {
GENI_SE_NONE,
GENI_SE_SPI,
GENI_SE_UART,
GENI_SE_I2C,
GENI_SE_I3C,
GENI_SE_SPI_SLAVE,
+ GENI_SE_INVALID_PROTO = 255,
};
#define QUP_HW_VER_REG 0x4
@@ -28,8 +36,9 @@ enum geni_se_protocol_type {
#define GENI_SER_M_CLK_CFG 0x48
#define GENI_SER_S_CLK_CFG 0x4c
#define GENI_IF_DISABLE_RO 0x64
#define GENI_FW_REVISION_RO 0x68
+#define GENI_DFS_IF_CFG 0x80
#define SE_GENI_CLK_SEL 0x7c
#define SE_GENI_CFG_SEQ_START 0x84
#define SE_GENI_BYTE_GRAN 0x254
#define SE_GENI_DMA_MODE_EN 0x258
@@ -56,17 +65,26 @@ enum geni_se_protocol_type {
#define SE_GENI_RX_RFR_WATERMARK_REG 0x814
#define SE_GENI_IOS 0x908
#define SE_DMA_TX_IRQ_STAT 0xc40
#define SE_DMA_TX_IRQ_CLR 0xc44
+#define SE_DMA_TX_IRQ_EN_SET 0xc4c
#define SE_DMA_TX_FSM_RST 0xc58
#define SE_DMA_RX_IRQ_STAT 0xd40
#define SE_DMA_RX_IRQ_CLR 0xd44
+#define SE_DMA_RX_IRQ_EN_SET 0xd4c
#define SE_DMA_RX_LEN_IN 0xd54
#define SE_DMA_RX_FSM_RST 0xd58
#define SE_GSI_EVENT_EN 0xe18
#define SE_IRQ_EN 0xe1c
#define SE_HW_PARAM_0 0xe24
#define SE_HW_PARAM_1 0xe28
+#define SE_DMA_GENERAL_CFG 0xe30
+
+/* GENI_DFS_IF_CFG fields */
+#define DFS_IF_EN BIT(0)
+
+/* SE_DMA_RX_IRQ_EN_SET fields */
+#define RESET_DONE_EN_SET BIT(3)
/* GENI_FORCE_DEFAULT_REG fields */
#define FORCE_DEFAULT BIT(0)
@@ -261,5 +279,23 @@ enum geni_se_protocol_type {
/* QUP SE VERSION value for major number 2 and minor number 5 */
#define QUP_SE_VERSION_2_5 0x20050000
+/* SE_DMA_GENERAL_CFG */
+#define DMA_RX_CLK_CGC_ON BIT(0)
+#define DMA_TX_CLK_CGC_ON BIT(1)
+#define DMA_AHB_SLV_CFG_ON BIT(2)
+#define AHB_SEC_SLV_CLK_CGC_ON BIT(3)
+#define DUMMY_RX_NON_BUFFERABLE BIT(4)
+#define RX_DMA_ZERO_PADDING_EN BIT(5)
+#define RX_DMA_IRQ_DELAY_MSK GENMASK(8, 6)
+#define RX_DMA_IRQ_DELAY_SHFT 6
+
+#define GENI_SE_DMA_DONE_EN BIT(0)
+#define GENI_SE_DMA_EOT_EN BIT(1)
+#define GENI_SE_DMA_AHB_ERR_EN BIT(2)
+
+#define GENI_SE_DMA_EOT_BUF BIT(0)
+
+#define GENI_DMA_MODE_EN BIT(0)
+
#endif
diff --git a/include/soc/qcom/qup-fw-load.h b/include/soc/qcom/qup-fw-
load.h
new file mode 100644
index
0000000000000000000000000000000000000000..a67a93c72a4b705eff5bd29b185a4172c19ae1d7
--- /dev/null
+++ b/include/soc/qcom/qup-fw-load.h
@@ -0,0 +1,178 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights
reserved.
+ */
+#ifndef _LINUX_QCOM_QUP_FW_LOAD
+#define _LINUX_QCOM_QUP_FW_LOAD
+
+#include <linux/kernel.h>
+
+/*Magic numbers*/
+#define MAGIC_NUM_SE 0x57464553
+
+/* Common SE registers*/
+#define GENI_INIT_CFG_REVISION 0x0
+#define GENI_S_INIT_CFG_REVISION 0x4
+#define GENI_FORCE_DEFAULT_REG 0x20
+#define GENI_CGC_CTRL 0x28
+#define GENI_CFG_REG0 0x100
+
+#define QUPV3_SE_HW_PARAM_1 0xE28
+#define RX_FIFO_WIDTH_BIT 24
+#define RX_FIFO_WIDTH_MASK 0x3F
+
+/*Same registers as GENI_DMA_MODE_EN*/
+#define QUPV3_SE_GENI_DMA_MODE_EN 0x258
+#define GENI_M_IRQ_ENABLE 0x614
+#define GENI_S_IRQ_ENABLE 0x644
+#define GENI_RX_RFR_WATERMARK_REG 0x814
+#define DMA_TX_IRQ_EN_SET 0xC4C
+#define DMA_RX_IRQ_EN_SET 0xD4C
+#define DMA_GENERAL_CFG 0xE30
+#define SE_GENI_FW_REVISION 0x1000
+#define SE_S_FW_REVISION 0x1004
+#define SE_GENI_CFG_RAMN 0x1010
+#define SE_GENI_CLK_CTRL 0x2000
+#define SE_DMA_IF_EN 0x2004
+#define SE_FIFO_IF_DISABLE 0x2008
+
+#define MAX_GENI_CFG_RAMn_CNT 455
+
+#define MI_PBT_NON_PAGED_SEGMENT 0x0
+#define MI_PBT_HASH_SEGMENT 0x2
+#define MI_PBT_NOTUSED_SEGMENT 0x3
+#define MI_PBT_SHARED_SEGMENT 0x4
+#define MI_PBT_FLAG_PAGE_MODE_MASK 0x100000
+#define MI_PBT_FLAG_PAGE_MODE_SHIFT 0x14
+#define MI_PBT_FLAG_SEGMENT_TYPE_MASK 0x7000000
+#define MI_PBT_FLAG_SEGMENT_TYPE_SHIFT 0x18
+#define MI_PBT_FLAG_ACCESS_TYPE_MASK 0xE00000
+#define MI_PBT_FLAG_ACCESS_TYPE_SHIFT 0x15
+
+#define MI_PBT_PAGE_MODE_VALUE(x) \
+ (((x) & MI_PBT_FLAG_PAGE_MODE_MASK) >> \
+ MI_PBT_FLAG_PAGE_MODE_SHIFT)
+
+#define MI_PBT_SEGMENT_TYPE_VALUE(x) \
+ (((x) & MI_PBT_FLAG_SEGMENT_TYPE_MASK) >> \
+ MI_PBT_FLAG_SEGMENT_TYPE_SHIFT)
+
+#define MI_PBT_ACCESS_TYPE_VALUE(x) \
+ (((x) & MI_PBT_FLAG_ACCESS_TYPE_MASK) >> \
+ MI_PBT_FLAG_ACCESS_TYPE_SHIFT)
+
+/* GENI_FORCE_DEFAULT_REG fields */
+#define FORCE_DEFAULT BIT(0)
+
+/* FW_REVISION_RO fields */
+#define FW_REV_PROTOCOL_SHFT 8
+#define FW_REV_VERSION_SHFT 0
+
+#define GENI_FW_REVISION_RO 0x68
+#define GENI_S_FW_REVISION_RO 0x6C
+
+/* SE_GENI_DMA_MODE_EN */
+#define GENI_DMA_MODE_EN BIT(0)
+
+/* GENI_M_IRQ_EN fields */
+#define M_CMD_DONE_EN BIT(0)
+#define M_IO_DATA_DEASSERT_EN BIT(22)
+#define M_IO_DATA_ASSERT_EN BIT(23)
+#define M_RX_FIFO_RD_ERR_EN BIT(24)
+#define M_RX_FIFO_WR_ERR_EN BIT(25)
+#define M_RX_FIFO_WATERMARK_EN BIT(26)
+#define M_RX_FIFO_LAST_EN BIT(27)
+#define M_TX_FIFO_RD_ERR_EN BIT(28)
+#define M_TX_FIFO_WR_ERR_EN BIT(29)
+#define M_TX_FIFO_WATERMARK_EN BIT(30)
+#define M_COMMON_GENI_M_IRQ_EN (GENMASK(6, 1) | \
+ M_IO_DATA_DEASSERT_EN | \
+ M_IO_DATA_ASSERT_EN | M_RX_FIFO_RD_ERR_EN | \
+ M_RX_FIFO_WR_ERR_EN | M_TX_FIFO_RD_ERR_EN | \
+ M_TX_FIFO_WR_ERR_EN)
+
+/* GENI_S_IRQ_EN fields */
+#define S_CMD_OVERRUN_EN BIT(1)
+#define S_ILLEGAL_CMD_EN BIT(2)
+#define S_CMD_CANCEL_EN BIT(4)
+#define S_CMD_ABORT_EN BIT(5)
+#define S_GP_IRQ_0_EN BIT(9)
+#define S_GP_IRQ_1_EN BIT(10)
+#define S_GP_IRQ_2_EN BIT(11)
+#define S_GP_IRQ_3_EN BIT(12)
+#define S_RX_FIFO_RD_ERR_EN BIT(24)
+#define S_RX_FIFO_WR_ERR_EN BIT(25)
+#define S_COMMON_GENI_S_IRQ_EN (GENMASK(5, 1) | GENMASK(13, 9) | \
+ S_RX_FIFO_RD_ERR_EN | S_RX_FIFO_WR_ERR_EN)
+
+#define GENI_CGC_CTRL_PROG_RAM_SCLK_OFF_BMSK 0x00000200
+#define GENI_CGC_CTRL_PROG_RAM_HCLK_OFF_BMSK 0x00000100
+
+#define GENI_DMA_MODE_EN_GENI_DMA_MODE_EN_BMSK 0x00000001
+
+#define DMA_TX_IRQ_EN_SET_RESET_DONE_EN_SET_BMSK 0x00000008
+#define DMA_TX_IRQ_EN_SET_SBE_EN_SET_BMSK 0x00000004
+#define DMA_TX_IRQ_EN_SET_DMA_DONE_EN_SET_BMSK 0x00000001
+
+#define DMA_RX_IRQ_EN_SET_FLUSH_DONE_EN_SET_BMSK 0x00000010
+#define DMA_RX_IRQ_EN_SET_RESET_DONE_EN_SET_BMSK 0x00000008
+#define DMA_RX_IRQ_EN_SET_SBE_EN_SET_BMSK 0x00000004
+#define DMA_RX_IRQ_EN_SET_DMA_DONE_EN_SET_BMSK 0x00000001
+
+#define DMA_GENERAL_CFG_AHB_SEC_SLV_CLK_CGC_ON_BMSK 0x00000008
+#define DMA_GENERAL_CFG_DMA_AHB_SLV_CLK_CGC_ON_BMSK 0x00000004
+#define DMA_GENERAL_CFG_DMA_TX_CLK_CGC_ON_BMSK 0x00000002
+#define DMA_GENERAL_CFG_DMA_RX_CLK_CGC_ON_BMSK 0x00000001
+
+#define GENI_CLK_CTRL_SER_CLK_SEL_BMSK 0x00000001
+#define DMA_IF_EN_DMA_IF_EN_BMSK 0x00000001
+#define SE_GSI_EVENT_EN_BMSK 0x0000000f
+#define SE_IRQ_EN_RMSK 0x0000000f
+
+#define QUPV3_COMMON_CFG 0x0120
+#define FAST_SWITCH_TO_HIGH_DISABLE_BMASK 0x00000001
+
+#define QUPV3_SE_AHB_M_CFG 0x0118
+#define AHB_M_CLK_CGC_ON_BMASK 0x00000001
+
+#define QUPV3_COMMON_CGC_CTRL 0x021C
+#define COMMON_CSR_SLV_CLK_CGC_ON_BMASK 0x00000001
+
+/* access ports */
+#define geni_setbits32(_addr, _v) writel_relaxed(readl_relaxed(_addr)
| (_v), (_addr))
+#define geni_clrbits32(_addr, _v) writel_relaxed(readl_relaxed(_addr)
& ~(_v), (_addr))
+
+/**
+ * struct elf_se_hdr - firmware configurations
+ *
+ * @magic: set to 'SEFW'
+ * @version: A 32-bit value indicating the structure’s version number
+ * @core_version: QUPV3_HW_VERSION
+ * @serial_protocol: Programmed into GENI_FW_REVISION
+ * @fw_version: Programmed into GENI_FW_REVISION
+ * @cfg_version: Programmed into GENI_INIT_CFG_REVISION
+ * @fw_size_in_items: Number of (uint32_t) GENI_FW_RAM words
+ * @fw_offset: Byte offset of GENI_FW_RAM array
+ * @cfg_size_in_items: Number of GENI_FW_CFG index/value pairs
+ * @cfg_idx_offset: Byte offset of GENI_FW_CFG index array
+ * @cfg_val_offset: Byte offset of GENI_FW_CFG values array
+ */
+struct elf_se_hdr {
+ u32 magic;
+ u32 version;
+ u32 core_version;
+ u16 serial_protocol;
+ u16 fw_version;
+ u16 cfg_version;
+ u16 fw_size_in_items;
+ u16 fw_offset;
+ u16 cfg_size_in_items;
+ u16 cfg_idx_offset;
+ u16 cfg_val_offset;
+};
+
+struct udevice;
+
+int qcom_geni_load_firmware(phys_addr_t qup_base, struct udevice *dev);
+
+#endif /* _LINUX_QCOM_QUP_FW_LOAD */
