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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-03 19:30:59 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-03 19:30:59 -0700 |
commit | 822ef14e9dc73079c646d33aa77e2ac42361b39e (patch) | |
tree | 34a8f741f64ef1e617575204db81aa6484df55ac /drivers/soc/imx | |
parent | 6ce076f4159fcf7436cce1299b05eabe200592f4 (diff) | |
parent | d76cfc7c3ad23a79eaf348a1b483e89f8ac3041a (diff) | |
download | linux-stable-822ef14e9dc73079c646d33aa77e2ac42361b39e.tar.gz linux-stable-822ef14e9dc73079c646d33aa77e2ac42361b39e.tar.bz2 linux-stable-822ef14e9dc73079c646d33aa77e2ac42361b39e.zip |
Merge tag 'arm-drivers-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
"A couple of subsystems have their own subsystem maintainers but choose
to have the code merged through the soc tree as upstream, as the code
tends to be used across multiple SoCs or has SoC specific drivers
itself:
- memory controllers:
Krzysztof Kozlowski takes ownership of the drivers/memory subsystem
and its drivers, starting out with a set of cleanup patches.
A larger driver for the Tegra memory controller that was
accidentally missed for v5.8 is now added.
- reset controllers:
Only minor updates to drivers/reset this time
- firmware:
The "turris mox" firmware driver gains support for signed firmware
blobs The tegra firmware driver gets extended to export some debug
information Various updates to i.MX firmware drivers, mostly
cosmetic
- ARM SCMI/SCPI:
A new mechanism for platform notifications is added, among a number
of minor changes.
- optee:
Probing of the TEE bus is rewritten to better support detection of
devices that depend on the tee-supplicant user space. A new
firmware based trusted platform module (fTPM) driver is added based
on OP-TEE
- SoC attributes:
A new driver is added to provide a generic soc_device for
identifying a machine through the SMCCC ARCH_SOC_ID firmware
interface rather than by probing SoC family specific registers.
The series also contains some cleanups to the common soc_device
code.
There are also a number of updates to SoC specific drivers, the main
ones are:
- Mediatek cmdq driver gains a few in-kernel interfaces
- Minor updates to Qualcomm RPMh, socinfo, rpm drivers, mostly adding
support for additional SoC variants
- The Qualcomm GENI core code gains interconnect path voting and
performance level support, and integrating this into a number of
device drivers.
- A new driver for Samsung Exynos5800 voltage coupler for
- Renesas RZ/G2H (R8A774E1) SoC support gets added to a couple of SoC
specific device drivers
- Updates to the TI K3 Ring Accelerator driver"
* tag 'arm-drivers-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (164 commits)
soc: qcom: geni: Fix unused label warning
soc: qcom: smd-rpm: Fix kerneldoc
memory: jz4780_nemc: Only request IO memory the driver will use
soc: qcom: pdr: Reorder the PD state indication ack
MAINTAINERS: Add Git repository for memory controller drivers
memory: brcmstb_dpfe: Fix language typo
memory: samsung: exynos5422-dmc: Correct white space issues
memory: samsung: exynos-srom: Correct alignment
memory: pl172: Enclose macro argument usage in parenthesis
memory: of: Correct kerneldoc
memory: omap-gpmc: Fix language typo
memory: omap-gpmc: Correct white space issues
memory: omap-gpmc: Use 'unsigned int' for consistency
memory: omap-gpmc: Enclose macro argument usage in parenthesis
memory: omap-gpmc: Correct kerneldoc
memory: mvebu-devbus: Align with open parenthesis
memory: mvebu-devbus: Add missing braces to all arms of if statement
memory: bt1-l2-ctl: Add blank lines after declarations
soc: TI knav_qmss: make symbol 'knav_acc_range_ops' static
firmware: ti_sci: Replace HTTP links with HTTPS ones
...
Diffstat (limited to 'drivers/soc/imx')
-rw-r--r-- | drivers/soc/imx/Kconfig | 10 | ||||
-rw-r--r-- | drivers/soc/imx/Makefile | 1 | ||||
-rw-r--r-- | drivers/soc/imx/soc-imx-scu.c | 187 |
3 files changed, 1 insertions, 197 deletions
diff --git a/drivers/soc/imx/Kconfig b/drivers/soc/imx/Kconfig index d515d2cc20ed..a9370f4aacca 100644 --- a/drivers/soc/imx/Kconfig +++ b/drivers/soc/imx/Kconfig @@ -8,20 +8,12 @@ config IMX_GPCV2_PM_DOMAINS select PM_GENERIC_DOMAINS default y if SOC_IMX7D -config IMX_SCU_SOC - bool "i.MX System Controller Unit SoC info support" - depends on IMX_SCU - select SOC_BUS - help - If you say yes here you get support for the NXP i.MX System - Controller Unit SoC info module, it will provide the SoC info - like SoC family, ID and revision etc. - config SOC_IMX8M bool "i.MX8M SoC family support" depends on ARCH_MXC || COMPILE_TEST default ARCH_MXC && ARM64 select SOC_BUS + select ARM_GIC_V3 if ARCH_MXC help If you say yes here you get support for the NXP i.MX8M family support, it will provide the SoC info like SoC family, diff --git a/drivers/soc/imx/Makefile b/drivers/soc/imx/Makefile index 446143241fe7..078dc918f4f3 100644 --- a/drivers/soc/imx/Makefile +++ b/drivers/soc/imx/Makefile @@ -5,4 +5,3 @@ endif obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o obj-$(CONFIG_IMX_GPCV2_PM_DOMAINS) += gpcv2.o obj-$(CONFIG_SOC_IMX8M) += soc-imx8m.o -obj-$(CONFIG_IMX_SCU_SOC) += soc-imx-scu.o diff --git a/drivers/soc/imx/soc-imx-scu.c b/drivers/soc/imx/soc-imx-scu.c deleted file mode 100644 index 20d37eaeb5f2..000000000000 --- a/drivers/soc/imx/soc-imx-scu.c +++ /dev/null @@ -1,187 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright 2019 NXP. - */ - -#include <dt-bindings/firmware/imx/rsrc.h> -#include <linux/firmware/imx/sci.h> -#include <linux/slab.h> -#include <linux/sys_soc.h> -#include <linux/platform_device.h> -#include <linux/of.h> - -#define IMX_SCU_SOC_DRIVER_NAME "imx-scu-soc" - -static struct imx_sc_ipc *soc_ipc_handle; - -struct imx_sc_msg_misc_get_soc_id { - struct imx_sc_rpc_msg hdr; - union { - struct { - u32 control; - u16 resource; - } __packed req; - struct { - u32 id; - } resp; - } data; -} __packed __aligned(4); - -struct imx_sc_msg_misc_get_soc_uid { - struct imx_sc_rpc_msg hdr; - u32 uid_low; - u32 uid_high; -} __packed; - -static int imx_scu_soc_uid(u64 *soc_uid) -{ - struct imx_sc_msg_misc_get_soc_uid msg; - struct imx_sc_rpc_msg *hdr = &msg.hdr; - int ret; - - hdr->ver = IMX_SC_RPC_VERSION; - hdr->svc = IMX_SC_RPC_SVC_MISC; - hdr->func = IMX_SC_MISC_FUNC_UNIQUE_ID; - hdr->size = 1; - - ret = imx_scu_call_rpc(soc_ipc_handle, &msg, true); - if (ret) { - pr_err("%s: get soc uid failed, ret %d\n", __func__, ret); - return ret; - } - - *soc_uid = msg.uid_high; - *soc_uid <<= 32; - *soc_uid |= msg.uid_low; - - return 0; -} - -static int imx_scu_soc_id(void) -{ - struct imx_sc_msg_misc_get_soc_id msg; - struct imx_sc_rpc_msg *hdr = &msg.hdr; - int ret; - - hdr->ver = IMX_SC_RPC_VERSION; - hdr->svc = IMX_SC_RPC_SVC_MISC; - hdr->func = IMX_SC_MISC_FUNC_GET_CONTROL; - hdr->size = 3; - - msg.data.req.control = IMX_SC_C_ID; - msg.data.req.resource = IMX_SC_R_SYSTEM; - - ret = imx_scu_call_rpc(soc_ipc_handle, &msg, true); - if (ret) { - pr_err("%s: get soc info failed, ret %d\n", __func__, ret); - return ret; - } - - return msg.data.resp.id; -} - -static int imx_scu_soc_probe(struct platform_device *pdev) -{ - struct soc_device_attribute *soc_dev_attr; - struct soc_device *soc_dev; - int id, ret; - u64 uid = 0; - u32 val; - - ret = imx_scu_get_handle(&soc_ipc_handle); - if (ret) - return ret; - - soc_dev_attr = devm_kzalloc(&pdev->dev, sizeof(*soc_dev_attr), - GFP_KERNEL); - if (!soc_dev_attr) - return -ENOMEM; - - soc_dev_attr->family = "Freescale i.MX"; - - ret = of_property_read_string(of_root, - "model", - &soc_dev_attr->machine); - if (ret) - return ret; - - id = imx_scu_soc_id(); - if (id < 0) - return -EINVAL; - - ret = imx_scu_soc_uid(&uid); - if (ret < 0) - return -EINVAL; - - /* format soc_id value passed from SCU firmware */ - val = id & 0x1f; - soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "0x%x", val); - if (!soc_dev_attr->soc_id) - return -ENOMEM; - - /* format revision value passed from SCU firmware */ - val = (id >> 5) & 0xf; - val = (((val >> 2) + 1) << 4) | (val & 0x3); - soc_dev_attr->revision = kasprintf(GFP_KERNEL, - "%d.%d", - (val >> 4) & 0xf, - val & 0xf); - if (!soc_dev_attr->revision) { - ret = -ENOMEM; - goto free_soc_id; - } - - soc_dev_attr->serial_number = kasprintf(GFP_KERNEL, "%016llX", uid); - if (!soc_dev_attr->serial_number) { - ret = -ENOMEM; - goto free_revision; - } - - soc_dev = soc_device_register(soc_dev_attr); - if (IS_ERR(soc_dev)) { - ret = PTR_ERR(soc_dev); - goto free_serial_number; - } - - return 0; - -free_serial_number: - kfree(soc_dev_attr->serial_number); -free_revision: - kfree(soc_dev_attr->revision); -free_soc_id: - kfree(soc_dev_attr->soc_id); - return ret; -} - -static struct platform_driver imx_scu_soc_driver = { - .driver = { - .name = IMX_SCU_SOC_DRIVER_NAME, - }, - .probe = imx_scu_soc_probe, -}; - -static int __init imx_scu_soc_init(void) -{ - struct platform_device *pdev; - struct device_node *np; - int ret; - - np = of_find_compatible_node(NULL, NULL, "fsl,imx-scu"); - if (!np) - return -ENODEV; - - of_node_put(np); - - ret = platform_driver_register(&imx_scu_soc_driver); - if (ret) - return ret; - - pdev = platform_device_register_simple(IMX_SCU_SOC_DRIVER_NAME, - -1, NULL, 0); - if (IS_ERR(pdev)) - platform_driver_unregister(&imx_scu_soc_driver); - - return PTR_ERR_OR_ZERO(pdev); -} -device_initcall(imx_scu_soc_init); |