From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Emil Renner Berthing Date: Wed, 6 Apr 2022 00:38:05 +0200 Subject: soc: sifive: ccache: Add StarFive JH71x0 support This adds support for the StarFive JH7100 and JH7110 SoCs which also feature this SiFive cache controller. Unfortunately the interrupt for uncorrected data is broken on the JH7100 and fires continuously, so add a quirk to not register a handler for it. Signed-off-by: Emil Renner Berthing Hacked-by: Ricardo Pardini for 6.1.y --- arch/riscv/Kconfig.socs | 1 + drivers/soc/Makefile | 2 +- drivers/soc/sifive/Kconfig | 2 +- drivers/soc/sifive/sifive_ccache.c | 12 +++++++++- 4 files changed, 14 insertions(+), 3 deletions(-) diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs index 111111111111..222222222222 100644 --- a/arch/riscv/Kconfig.socs +++ b/arch/riscv/Kconfig.socs @@ -22,6 +22,7 @@ config SOC_STARFIVE bool "StarFive SoCs" select PINCTRL select RESET_CONTROLLER + select SIFIVE_CCACHE select SIFIVE_PLIC select ARM_AMBA help diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile index 111111111111..222222222222 100644 --- a/drivers/soc/Makefile +++ b/drivers/soc/Makefile @@ -26,7 +26,7 @@ obj-y += qcom/ obj-y += renesas/ obj-y += rockchip/ obj-$(CONFIG_SOC_SAMSUNG) += samsung/ -obj-$(CONFIG_SOC_SIFIVE) += sifive/ +obj-y += sifive/ obj-y += sunxi/ obj-$(CONFIG_ARCH_TEGRA) += tegra/ obj-y += ti/ diff --git a/drivers/soc/sifive/Kconfig b/drivers/soc/sifive/Kconfig index 111111111111..222222222222 100644 --- a/drivers/soc/sifive/Kconfig +++ b/drivers/soc/sifive/Kconfig @@ -1,6 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 -if SOC_SIFIVE +if SOC_SIFIVE || SOC_STARFIVE config SIFIVE_CCACHE bool "Sifive Composable Cache controller" diff --git a/drivers/soc/sifive/sifive_ccache.c b/drivers/soc/sifive/sifive_ccache.c index 111111111111..222222222222 100644 --- a/drivers/soc/sifive/sifive_ccache.c +++ b/drivers/soc/sifive/sifive_ccache.c @@ -106,6 +106,8 @@ static void ccache_config_read(void) static const struct of_device_id sifive_ccache_ids[] = { { .compatible = "sifive,fu540-c000-ccache" }, { .compatible = "sifive,fu740-c000-ccache" }, + { .compatible = "starfive,jh7100-ccache", .data = (void *)BIT(DATA_UNCORR) }, + { .compatible = "starfive,jh7110-ccache" }, { .compatible = "sifive,ccache0" }, { /* end of table */ } }; @@ -210,11 +212,15 @@ static int __init sifive_ccache_init(void) struct device_node *np; struct resource res; int i, rc, intr_num; + const struct of_device_id *match; + unsigned long broken_irqs; - np = of_find_matching_node(NULL, sifive_ccache_ids); + np = of_find_matching_node_and_match(NULL, sifive_ccache_ids, &match); if (!np) return -ENODEV; + broken_irqs = (uintptr_t)match->data; + if (of_address_to_resource(np, 0, &res)) { rc = -ENODEV; goto err_node_put; @@ -240,6 +246,10 @@ static int __init sifive_ccache_init(void) for (i = 0; i < intr_num; i++) { g_irq[i] = irq_of_parse_and_map(np, i); + + if (broken_irqs & BIT(i)) + continue; + rc = request_irq(g_irq[i], ccache_int_handler, 0, "ccache_ecc", NULL); if (rc) { -- Armbian