diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-6.1/950-0918-irqchip-irq-brcmstb-l2-Add-config-for-2711-controlle.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-6.1/950-0918-irqchip-irq-brcmstb-l2-Add-config-for-2711-controlle.patch | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-0918-irqchip-irq-brcmstb-l2-Add-config-for-2711-controlle.patch b/target/linux/bcm27xx/patches-6.1/950-0918-irqchip-irq-brcmstb-l2-Add-config-for-2711-controlle.patch new file mode 100644 index 0000000000..5ea212d4a7 --- /dev/null +++ b/target/linux/bcm27xx/patches-6.1/950-0918-irqchip-irq-brcmstb-l2-Add-config-for-2711-controlle.patch @@ -0,0 +1,73 @@ +From fa4d4ed28c92cf4470e518f1a7362dc7941632d7 Mon Sep 17 00:00:00 2001 +From: Dom Cobley <popcornmix@gmail.com> +Date: Wed, 28 Jun 2023 16:24:29 +0100 +Subject: [PATCH] irqchip/irq-brcmstb-l2: Add config for 2711 controller + +We currently see these regularly: +[ 25.157560] irq 31, desc: 00000000c15e6d2c, depth: 0, count: 0, unhandled: 0 +[ 25.164658] ->handle_irq(): 00000000b1775675, brcmstb_l2_intc_irq_handle+0x0/0x1a8 +[ 25.172352] ->irq_data.chip(): 00000000fea59f1c, gic_chip_mode1+0x0/0x108 +[ 25.179166] ->action(): 000000003eda6d6f +[ 25.183096] ->action->handler(): 000000002c09e646, bad_chained_irq+0x0/0x58 +[ 25.190084] IRQ_LEVEL set +[ 25.193142] IRQ_NOPROBE set +[ 25.196198] IRQ_NOREQUEST set +[ 25.199255] IRQ_NOTHREAD set + +with: +$ cat /proc/interrupts | grep 31: + 31: 1 0 0 0 GICv2 129 Level (null) + +The interrupt is described in DT with IRQ_TYPE_LEVEL_HIGH + +But the current compatible string uses the controller in edge triggered mode +(as that config matches our register layout). + +Add a new compatible structure for level driven interrupt with our register layout. + +We had already been using this compatible string in device tree, so no change needed +there. + +Signed-off-by: Dom Cobley <popcornmix@gmail.com> +--- + drivers/irqchip/irq-brcmstb-l2.c | 17 +++++++++++++++++ + 1 file changed, 17 insertions(+) + +--- a/drivers/irqchip/irq-brcmstb-l2.c ++++ b/drivers/irqchip/irq-brcmstb-l2.c +@@ -52,6 +52,16 @@ static const struct brcmstb_intc_init_pa + .cpu_mask_clear = 0x0C + }; + ++/* Register offsets in the 2711 L2 level interrupt controller */ ++static const struct brcmstb_intc_init_params l2_2711_lvl_intc_init = { ++ .handler = handle_level_irq, ++ .cpu_status = 0x00, ++ .cpu_clear = 0x08, ++ .cpu_mask_status = 0x0c, ++ .cpu_mask_set = 0x10, ++ .cpu_mask_clear = 0x14 ++}; ++ + /* L2 intc private data structure */ + struct brcmstb_l2_intc_data { + struct irq_domain *domain; +@@ -286,11 +296,18 @@ static int __init brcmstb_l2_lvl_intc_of + return brcmstb_l2_intc_of_init(np, parent, &l2_lvl_intc_init); + } + ++static int __init brcmstb_l2_2711_lvl_intc_of_init(struct device_node *np, ++ struct device_node *parent) ++{ ++ return brcmstb_l2_intc_of_init(np, parent, &l2_2711_lvl_intc_init); ++} ++ + IRQCHIP_PLATFORM_DRIVER_BEGIN(brcmstb_l2) + IRQCHIP_MATCH("brcm,l2-intc", brcmstb_l2_edge_intc_of_init) + IRQCHIP_MATCH("brcm,hif-spi-l2-intc", brcmstb_l2_edge_intc_of_init) + IRQCHIP_MATCH("brcm,upg-aux-aon-l2-intc", brcmstb_l2_edge_intc_of_init) + IRQCHIP_MATCH("brcm,bcm7271-l2-intc", brcmstb_l2_lvl_intc_of_init) ++IRQCHIP_MATCH("brcm,bcm2711-l2-intc", brcmstb_l2_2711_lvl_intc_of_init) + IRQCHIP_PLATFORM_DRIVER_END(brcmstb_l2) + MODULE_DESCRIPTION("Broadcom STB generic L2 interrupt controller"); + MODULE_LICENSE("GPL v2"); |