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authorLinus Torvalds <torvalds@linux-foundation.org>2023-06-29 15:22:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2023-06-29 15:22:19 -0700
commite4c8d01865118ab148f77bdb54ec9c0c181d90a3 (patch)
tree07718f0f27beb7fda54163ecc9fb46638b4187a5 /drivers/soc/renesas/rcar-rst.c
parenta9025a5f16ed610ea28a188cb0946cb71fafff17 (diff)
parent356fa4975950d48d12b6ee9f9050ad429db25852 (diff)
Merge tag 'soc-drivers-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann: "Nothing surprising in the SoC specific drivers, with the usual updates: - Added or improved SoC driver support for Tegra234, Exynos4121, RK3588, as well as multiple Mediatek and Qualcomm chips - SCMI firmware gains support for multiple SMC/HVC transport and version 3.2 of the protocol - Cleanups amd minor changes for the reset controller, memory controller, firmware and sram drivers - Minor changes to amd/xilinx, samsung, tegra, nxp, ti, qualcomm, amlogic and renesas SoC specific drivers" * tag 'soc-drivers-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (118 commits) dt-bindings: interrupt-controller: Convert Amlogic Meson GPIO interrupt controller binding MAINTAINERS: add PHY-related files to Amlogic SoC file list drivers: meson: secure-pwrc: always enable DMA domain tee: optee: Use kmemdup() to replace kmalloc + memcpy soc: qcom: geni-se: Do not bother about enable/disable of interrupts in secondary sequencer dt-bindings: sram: qcom,imem: document qdu1000 soc: qcom: icc-bwmon: Fix MSM8998 count unit dt-bindings: soc: qcom,rpmh-rsc: Require power-domains soc: qcom: socinfo: Add Soc ID for IPQ5300 dt-bindings: arm: qcom,ids: add SoC ID for IPQ5300 soc: qcom: Fix a IS_ERR() vs NULL bug in probe soc: qcom: socinfo: Add support for new fields in revision 19 soc: qcom: socinfo: Add support for new fields in revision 18 dt-bindings: firmware: scm: Add compatible for SDX75 soc: qcom: mdt_loader: Fix split image detection dt-bindings: memory-controllers: drop unneeded quotes soc: rockchip: dtpm: use C99 array init syntax firmware: tegra: bpmp: Add support for DRAM MRQ GSCs soc/tegra: pmc: Use devm_clk_notifier_register() soc/tegra: pmc: Simplify debugfs initialization ...
Diffstat (limited to 'drivers/soc/renesas/rcar-rst.c')
-rw-r--r--drivers/soc/renesas/rcar-rst.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/soc/renesas/rcar-rst.c b/drivers/soc/renesas/rcar-rst.c
index e1c7e91f5a86..98fd97da6cd4 100644
--- a/drivers/soc/renesas/rcar-rst.c
+++ b/drivers/soc/renesas/rcar-rst.c
@@ -12,6 +12,7 @@
#define WDTRSTCR_RESET 0xA55A0002
#define WDTRSTCR 0x0054
+#define GEN4_WDTRSTCR 0x0010
#define CR7BAR 0x0070
#define CR7BAREN BIT(4)
@@ -27,6 +28,12 @@ static int rcar_rst_enable_wdt_reset(void __iomem *base)
return 0;
}
+static int rcar_rst_v3u_enable_wdt_reset(void __iomem *base)
+{
+ iowrite32(WDTRSTCR_RESET, base + GEN4_WDTRSTCR);
+ return 0;
+}
+
/*
* Most of the R-Car Gen3 SoCs have an ARM Realtime Core.
* Firmware boot address has to be set in CR7BAR before
@@ -66,6 +73,12 @@ static const struct rst_config rcar_rst_gen3 __initconst = {
.set_rproc_boot_addr = rcar_rst_set_gen3_rproc_boot_addr,
};
+/* V3U firmware doesn't enable WDT reset and there won't be updates anymore */
+static const struct rst_config rcar_rst_v3u __initconst = {
+ .modemr = 0x00, /* MODEMR0 and it has CPG related bits */
+ .configure = rcar_rst_v3u_enable_wdt_reset,
+};
+
static const struct rst_config rcar_rst_gen4 __initconst = {
.modemr = 0x00, /* MODEMR0 and it has CPG related bits */
};
@@ -101,7 +114,7 @@ static const struct of_device_id rcar_rst_matches[] __initconst = {
{ .compatible = "renesas,r8a77990-rst", .data = &rcar_rst_gen3 },
{ .compatible = "renesas,r8a77995-rst", .data = &rcar_rst_gen3 },
/* R-Car Gen4 */
- { .compatible = "renesas,r8a779a0-rst", .data = &rcar_rst_gen4 },
+ { .compatible = "renesas,r8a779a0-rst", .data = &rcar_rst_v3u },
{ .compatible = "renesas,r8a779f0-rst", .data = &rcar_rst_gen4 },
{ .compatible = "renesas,r8a779g0-rst", .data = &rcar_rst_gen4 },
{ /* sentinel */ }