diff options
| author | Tom <support@vamrs.com> | 2021-02-13 17:25:17 +0300 |
|---|---|---|
| committer | Emil Renner Berthing <kernel@esmil.dk> | 2021-06-07 02:11:17 +0300 |
| commit | cfa6ef69ae308f119c6c5763aa29569622d1ea1c (patch) | |
| tree | 31a704742088b43d6c2eb2bf92d8aaae095cc8b0 /drivers/soc | |
| parent | f1c032d6c0ce86525b4655e22eb0d15db067ec3b (diff) | |
| download | linux-cfa6ef69ae308f119c6c5763aa29569622d1ea1c.tar.xz | |
sifive/sifive_l2_cache: Add disabling IRQ option (workaround)
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/sifive/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/soc/sifive/sifive_l2_cache.c | 8 |
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/soc/sifive/Kconfig b/drivers/soc/sifive/Kconfig index 4d0fdab56e81..4cccaad9e943 100644 --- a/drivers/soc/sifive/Kconfig +++ b/drivers/soc/sifive/Kconfig @@ -22,4 +22,8 @@ config SIFIVE_L2_FLUSH_SIZE endif # SIFIVE_L2_FLUSH +config SIFIVE_L2_IRQ_DISABLE + bool "Disable Level 2 Cache Controller interrupts" + default y if SOC_STARFIVE_VIC7100 + endif diff --git a/drivers/soc/sifive/sifive_l2_cache.c b/drivers/soc/sifive/sifive_l2_cache.c index 5f2b295fc5ef..be4e141f5a0e 100644 --- a/drivers/soc/sifive/sifive_l2_cache.c +++ b/drivers/soc/sifive/sifive_l2_cache.c @@ -40,7 +40,9 @@ #define SIFIVE_L2_FLUSH64_LINE_LEN 64 static void __iomem *l2_base = NULL; +#if !IS_ENABLED(CONFIG_SIFIVE_L2_IRQ_DISABLE) static int g_irq[SIFIVE_L2_MAX_ECCINTR]; +#endif static struct riscv_cacheinfo_ops l2_cache_ops; enum { @@ -188,6 +190,7 @@ static const struct attribute_group *l2_get_priv_group(struct cacheinfo *this_le return NULL; } +#if !IS_ENABLED(CONFIG_SIFIVE_L2_IRQ_DISABLE) static irqreturn_t l2_int_handler(int irq, void *device) { unsigned int add_h, add_l; @@ -231,12 +234,15 @@ static irqreturn_t l2_int_handler(int irq, void *device) return IRQ_HANDLED; } +#endif static int __init sifive_l2_init(void) { struct device_node *np; struct resource res; +#if !IS_ENABLED(CONFIG_SIFIVE_L2_IRQ_DISABLE) int i, rc, intr_num; +#endif np = of_find_matching_node(NULL, sifive_l2_ids); if (!np) @@ -249,6 +255,7 @@ static int __init sifive_l2_init(void) if (!l2_base) return -ENOMEM; +#if !IS_ENABLED(CONFIG_SIFIVE_L2_IRQ_DISABLE) intr_num = of_property_count_u32_elems(np, "interrupts"); if (!intr_num) { pr_err("L2CACHE: no interrupts property\n"); @@ -263,6 +270,7 @@ static int __init sifive_l2_init(void) return rc; } } +#endif l2_config_read(); |