diff options
Diffstat (limited to 'meta-rcar-gen3/recipes-kernel/linux')
7 files changed, 362 insertions, 0 deletions
diff --git a/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0001-soc-renesas-rcar-sysc-Update-power-control-flow-for-.patch b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0001-soc-renesas-rcar-sysc-Update-power-control-flow-for-.patch new file mode 100644 index 0000000..a8403b5 --- /dev/null +++ b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0001-soc-renesas-rcar-sysc-Update-power-control-flow-for-.patch @@ -0,0 +1,108 @@ +From c8623487a0716301221dfbceee63856ed6f0c15f Mon Sep 17 00:00:00 2001 +From: Dien Pham <dien.pham.ry@renesas.com> +Date: Wed, 11 Apr 2018 16:19:03 +0700 +Subject: [PATCH 1/6] soc: renesas: rcar-sysc: Update power control flow for + SYSCEXTMASK register + +On H3 v3.0, it can observe the system hang up after changing +power domains many times (~2000 times) continuously. +This occurs because there is conflict when changing state +of power domains. + +To overcome this issue, power domain on/off control flow +need to be updated. It needs to set/clear value of SYSCEXTMASK register. + +This patch is updated for above purpose. + +Signed-off-by: Dien Pham <dien.pham.ry@renesas.com> +--- + drivers/soc/renesas/rcar-sysc.c | 22 +++++++++++++++++++++- + drivers/soc/renesas/rcar-sysc.h | 8 ++++++++ + 2 files changed, 29 insertions(+), 1 deletion(-) + +diff --git a/drivers/soc/renesas/rcar-sysc.c b/drivers/soc/renesas/rcar-sysc.c +index a063887..b170f9b 100644 +--- a/drivers/soc/renesas/rcar-sysc.c ++++ b/drivers/soc/renesas/rcar-sysc.c +@@ -96,10 +96,24 @@ + + static void __iomem *rcar_sysc_base; + static DEFINE_SPINLOCK(rcar_sysc_lock); /* SMP CPUs + I/O devices */ +- ++static struct rcar_sysc_extra_regs *extra_regs; + + static const char *to_pd_name(const struct rcar_sysc_ch *sysc_ch); + ++static void rcar_sysc_extmask_ctrl(bool on) ++{ ++ u32 extmask_msks = 0; ++ ++ if (!extra_regs || !extra_regs->sysc_extmask_msks) ++ return; ++ ++ if (on) ++ extmask_msks = extra_regs->sysc_extmask_msks; ++ ++ iowrite32(extmask_msks, ++ rcar_sysc_base + extra_regs->sysc_extmask_offs); ++} ++ + static int rcar_sysc_pwr_on_off(const struct rcar_sysc_ch *sysc_ch, bool on) + { + unsigned int sr_bit, reg_offs; +@@ -147,6 +161,7 @@ static int rcar_sysc_power(const struct rcar_sysc_ch *sysc_ch, bool on) + + spin_lock_irqsave(&rcar_sysc_lock, flags); + ++ rcar_sysc_extmask_ctrl(1); /* set EXTMSK0 */ + iowrite32(isr_mask, rcar_sysc_base + SYSCISCR); + + /* Submit power shutoff or resume request until it was accepted */ +@@ -181,6 +196,7 @@ static int rcar_sysc_power(const struct rcar_sysc_ch *sysc_ch, bool on) + iowrite32(isr_mask, rcar_sysc_base + SYSCISCR); + + out: ++ rcar_sysc_extmask_ctrl(0); /* clear EXTMSK0 */ + spin_unlock_irqrestore(&rcar_sysc_lock, flags); + + pr_debug("sysc power %s domain %d: %08x -> %d\n", on ? "on" : "off", +@@ -436,6 +452,10 @@ static int __init rcar_sysc_pd_init(void) + + rcar_sysc_base = base; + ++ /* Check and get extra registers */ ++ if (info->extra_regs) ++ extra_regs = info->extra_regs; ++ + domains = kzalloc(sizeof(*domains), GFP_KERNEL); + if (!domains) { + error = -ENOMEM; +diff --git a/drivers/soc/renesas/rcar-sysc.h b/drivers/soc/renesas/rcar-sysc.h +index cfc7e30..1c3aedb 100644 +--- a/drivers/soc/renesas/rcar-sysc.h ++++ b/drivers/soc/renesas/rcar-sysc.h +@@ -38,6 +38,13 @@ struct rcar_sysc_area { + unsigned int flags; /* See PD_* */ + }; + ++/* ++ * List of registers that are not common in all platform. ++ */ ++struct rcar_sysc_extra_regs { ++ u16 sysc_extmask_offs; /* Offset of SYSCEXTMASK register */ ++ u32 sysc_extmask_msks; /* Mask value of SYSCEXTMASK register */ ++}; + + /* + * SoC-specific Power Area Description +@@ -47,6 +54,7 @@ struct rcar_sysc_info { + int (*init)(void); /* Optional */ + const struct rcar_sysc_area *areas; + unsigned int num_areas; ++ struct rcar_sysc_extra_regs *extra_regs; + }; + + extern const struct rcar_sysc_info r8a7743_sysc_info; +-- +1.9.1 + diff --git a/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0002-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0002-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch new file mode 100644 index 0000000..c29cfee --- /dev/null +++ b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0002-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch @@ -0,0 +1,60 @@ +From e1fcb7cf84d92cbb31f5e1bcff24247fbc23fa77 Mon Sep 17 00:00:00 2001 +From: Dien Pham <dien.pham.ry@renesas.com> +Date: Wed, 11 Apr 2018 16:20:49 +0700 +Subject: [PATCH 2/6] soc: renesas: rcar-sysc: Add SYSCEXTMASK info for r8a7795 + +Add specific SYSCEXTMASK register info so that +it is controlled during power domain on/off. + +Signed-off-by: Dien Pham <dien.pham.ry@renesas.com> +--- + drivers/soc/renesas/r8a7795-sysc.c | 15 +++++++++++++++ + 1 file changed, 15 insertions(+) + +diff --git a/drivers/soc/renesas/r8a7795-sysc.c b/drivers/soc/renesas/r8a7795-sysc.c +index 7412666..aac1053 100644 +--- a/drivers/soc/renesas/r8a7795-sysc.c ++++ b/drivers/soc/renesas/r8a7795-sysc.c +@@ -8,6 +8,7 @@ + * the Free Software Foundation; version 2 of the License. + */ + ++#include <linux/bitops.h> + #include <linux/bug.h> + #include <linux/kernel.h> + #include <linux/sys_soc.h> +@@ -62,17 +63,31 @@ + { /* sentinel */ } + }; + ++static const struct soc_device_attribute r8a7795es2[] __initconst = { ++ { .soc_id = "r8a7795", .revision = "ES2.*" }, ++ { /* sentinel */ } ++}; ++ + static int __init r8a7795_sysc_init(void) + { + if (!soc_device_match(r8a7795es1)) + rcar_sysc_nullify(r8a7795_areas, ARRAY_SIZE(r8a7795_areas), + R8A7795_PD_A2VC0); + ++ if (soc_device_match(r8a7795es1) || soc_device_match(r8a7795es2)) ++ r8a7795_sysc_info.extra_regs->sysc_extmask_msks = 0; ++ + return 0; + } + ++static struct rcar_sysc_extra_regs r8a7795_extra_regs = { ++ .sysc_extmask_offs = 0x2F8, .sysc_extmask_msks = BIT(0) ++}; ++ ++ + const struct rcar_sysc_info r8a7795_sysc_info __initconst = { + .init = r8a7795_sysc_init, + .areas = r8a7795_areas, + .num_areas = ARRAY_SIZE(r8a7795_areas), ++ .extra_regs = &r8a7795_extra_regs, + }; +-- +1.9.1 + diff --git a/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0003-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0003-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch new file mode 100644 index 0000000..39d3fb1 --- /dev/null +++ b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0003-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch @@ -0,0 +1,58 @@ +From 7a0a2b88f8b1fe0f36ffaa1c56e404b12eb5effc Mon Sep 17 00:00:00 2001 +From: Dien Pham <dien.pham.ry@renesas.com> +Date: Thu, 12 Apr 2018 16:03:30 +0700 +Subject: [PATCH 3/6] soc: renesas: rcar-sysc: Add SYSCEXTMASK info for r8a7796 + +Add specific SYSCEXTMASK register info so that +it is controlled during power domain on/off. + +Signed-off-by: Dien Pham <dien.pham.ry@renesas.com> +--- + drivers/soc/renesas/r8a7796-sysc.c | 21 +++++++++++++++++++++ + 1 file changed, 21 insertions(+) + +diff --git a/drivers/soc/renesas/r8a7796-sysc.c b/drivers/soc/renesas/r8a7796-sysc.c +index f700c84..afab100 100644 +--- a/drivers/soc/renesas/r8a7796-sysc.c ++++ b/drivers/soc/renesas/r8a7796-sysc.c +@@ -8,8 +8,10 @@ + * the Free Software Foundation; version 2 of the License. + */ + ++#include <linux/bitops.h> + #include <linux/bug.h> + #include <linux/kernel.h> ++#include <linux/sys_soc.h> + + #include <dt-bindings/power/r8a7796-sysc.h> + +@@ -42,7 +44,26 @@ + { "a3ir", 0x180, 0, R8A7796_PD_A3IR, R8A7796_PD_ALWAYS_ON }, + }; + ++static const struct soc_device_attribute r8a7796es1[] __initconst = { ++ { .soc_id = "r8a7796", .revision = "ES1.*" }, ++ { /* sentinel */ } ++}; ++ ++static int __init r8a7796_sysc_init(void) ++{ ++ if (soc_device_match(r8a7796es1)) ++ r8a7796_sysc_info.extra_regs->sysc_extmask_msks = 0; ++ ++ return 0; ++} ++ ++static struct rcar_sysc_extra_regs r8a7796_extra_regs = { ++ .sysc_extmask_offs = 0x2F8, .sysc_extmask_msks = BIT(0) ++}; ++ + const struct rcar_sysc_info r8a7796_sysc_info __initconst = { ++ .init = r8a7796_sysc_init, + .areas = r8a7796_areas, + .num_areas = ARRAY_SIZE(r8a7796_areas), ++ .extra_regs = &r8a7796_extra_regs, + }; +-- +1.9.1 + diff --git a/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0004-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0004-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch new file mode 100644 index 0000000..839c2a7 --- /dev/null +++ b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0004-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch @@ -0,0 +1,42 @@ +From 3a194570273ba919d6e8bd2276a3da7c4a4e56bf Mon Sep 17 00:00:00 2001 +From: Dien Pham <dien.pham.ry@renesas.com> +Date: Thu, 12 Apr 2018 16:19:39 +0700 +Subject: [PATCH 4/6] soc: renesas: rcar-sysc: Add SYSCEXTMASK info for + r8a77990 + +Add specific SYSCEXTMASK register info so that +it is controlled during power domain on/off. + +Signed-off-by: Dien Pham <dien.pham.ry@renesas.com> +--- + drivers/soc/renesas/r8a77990-sysc.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +diff --git a/drivers/soc/renesas/r8a77990-sysc.c b/drivers/soc/renesas/r8a77990-sysc.c +index 84789f0..f011256 100644 +--- a/drivers/soc/renesas/r8a77990-sysc.c ++++ b/drivers/soc/renesas/r8a77990-sysc.c +@@ -8,6 +8,7 @@ + * the Free Software Foundation; version 2 of the License. + */ + ++#include <linux/bitops.h> + #include <linux/bug.h> + #include <linux/kernel.h> + +@@ -30,7 +31,12 @@ + { "3dg-a", 0x100, 0, R8A77990_PD_3DG_A, R8A77990_PD_3DG_B }, + }; + ++static struct rcar_sysc_extra_regs r8a77990_extra_regs = { ++ .sysc_extmask_offs = 0x2F8, .sysc_extmask_msks = BIT(0) ++}; ++ + const struct rcar_sysc_info r8a77990_sysc_info __initconst = { + .areas = r8a77990_areas, + .num_areas = ARRAY_SIZE(r8a77990_areas), ++ .extra_regs = &r8a77990_extra_regs, + }; +-- +1.9.1 + diff --git a/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0005-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0005-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch new file mode 100644 index 0000000..fa43c4c --- /dev/null +++ b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0005-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch @@ -0,0 +1,42 @@ +From 5ff3017324652ef42ca7cf3a1d6ae3c33f6192a9 Mon Sep 17 00:00:00 2001 +From: Dien Pham <dien.pham.ry@renesas.com> +Date: Thu, 12 Apr 2018 16:22:58 +0700 +Subject: [PATCH 5/6] soc: renesas: rcar-sysc: Add SYSCEXTMASK info for + r8a77965 + +Add specific SYSCEXTMASK register info so that +it is controlled during power domain on/off. + +Signed-off-by: Dien Pham <dien.pham.ry@renesas.com> +--- + drivers/soc/renesas/r8a77965-sysc.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +diff --git a/drivers/soc/renesas/r8a77965-sysc.c b/drivers/soc/renesas/r8a77965-sysc.c +index 65e805e..60751cf 100644 +--- a/drivers/soc/renesas/r8a77965-sysc.c ++++ b/drivers/soc/renesas/r8a77965-sysc.c +@@ -8,6 +8,7 @@ + * the Free Software Foundation; version 2 of the License. + */ + ++#include <linux/bitops.h> + #include <linux/bug.h> + #include <linux/kernel.h> + +@@ -32,7 +33,12 @@ + { "a3ir", 0x180, 0, R8A77965_PD_A3IR, R8A77965_PD_ALWAYS_ON }, + }; + ++static struct rcar_sysc_extra_regs r8a77965_extra_regs = { ++ .sysc_extmask_offs = 0x2F8, .sysc_extmask_msks = BIT(0) ++}; ++ + const struct rcar_sysc_info r8a77965_sysc_info __initconst = { + .areas = r8a77965_areas, + .num_areas = ARRAY_SIZE(r8a77965_areas), ++ .extra_regs = &r8a77965_extra_regs, + }; +-- +1.9.1 + diff --git a/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0006-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0006-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch new file mode 100644 index 0000000..2d59618 --- /dev/null +++ b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0006-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch @@ -0,0 +1,42 @@ +From 9264b321a1de7ff851f2015384cc0fcbd35e2736 Mon Sep 17 00:00:00 2001 +From: Dien Pham <dien.pham.ry@renesas.com> +Date: Thu, 12 Apr 2018 16:27:44 +0700 +Subject: [PATCH 6/6] soc: renesas: rcar-sysc: Add SYSCEXTMASK info for + r8a77970 + +Add specific SYSCEXTMASK register info so that +it is controlled during power domain on/off. + +Signed-off-by: Dien Pham <dien.pham.ry@renesas.com> +--- + drivers/soc/renesas/r8a77970-sysc.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +diff --git a/drivers/soc/renesas/r8a77970-sysc.c b/drivers/soc/renesas/r8a77970-sysc.c +index 8c61416..db7b0de 100644 +--- a/drivers/soc/renesas/r8a77970-sysc.c ++++ b/drivers/soc/renesas/r8a77970-sysc.c +@@ -8,6 +8,7 @@ + * published by the Free Software Foundation. + */ + ++#include <linux/bitops.h> + #include <linux/bug.h> + #include <linux/kernel.h> + +@@ -33,7 +34,12 @@ + { "a2sc1", 0x400, 5, R8A77970_PD_A2SC1, R8A77970_PD_A2SC0 }, + }; + ++static struct rcar_sysc_extra_regs r8a77970_extra_regs = { ++ .sysc_extmask_offs = 0x1B0, .sysc_extmask_msks = BIT(0) ++}; ++ + const struct rcar_sysc_info r8a77970_sysc_info __initconst = { + .areas = r8a77970_areas, + .num_areas = ARRAY_SIZE(r8a77970_areas), ++ .extra_regs = &r8a77970_extra_regs, + }; +-- +1.9.1 + diff --git a/meta-rcar-gen3/recipes-kernel/linux/linux-renesas_4.14.bb b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas_4.14.bb index 5c94645..37d812c 100644 --- a/meta-rcar-gen3/recipes-kernel/linux/linux-renesas_4.14.bb +++ b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas_4.14.bb @@ -24,6 +24,16 @@ SRC_URI_append = " \ ${@base_conditional("USE_AVB", "1", " file://usb-video-class.cfg", "", d)} \ " +# Patches for sysc +SRC_URI_append = " \ + file://0001-soc-renesas-rcar-sysc-Update-power-control-flow-for-.patch \ + file://0002-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch \ + file://0003-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch \ + file://0004-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch \ + file://0005-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch \ + file://0006-soc-renesas-rcar-sysc-Add-SYSCEXTMASK-info-for-r8a77.patch \ +" + # Enable RPMSG_VIRTIO depend on ICCOM SUPPORT_ICCOM = " \ file://0001-rpmsg-Add-message-to-be-able-to-configure-RPMSG_VIRT.patch \ |