From 17511a7ea86a34b5a5cfd4831d3a2e8a9e0cc005 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Thu, 31 May 2018 17:28:38 +0200 Subject: oxnas: kill old oxnas target Signed-off-by: Daniel Golle --- target/linux/oxnas/files/drivers/irqchip/irq-rps.c | 145 --------------------- 1 file changed, 145 deletions(-) delete mode 100644 target/linux/oxnas/files/drivers/irqchip/irq-rps.c (limited to 'target/linux/oxnas/files/drivers/irqchip/irq-rps.c') diff --git a/target/linux/oxnas/files/drivers/irqchip/irq-rps.c b/target/linux/oxnas/files/drivers/irqchip/irq-rps.c deleted file mode 100644 index f2b0829de6..0000000000 --- a/target/linux/oxnas/files/drivers/irqchip/irq-rps.c +++ /dev/null @@ -1,145 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include -#include -#include - -struct rps_chip_data { - void __iomem *base; - struct irq_chip chip; - struct irq_domain *domain; -} rps_data; - -enum { - RPS_IRQ_BASE = 64, - RPS_IRQ_COUNT = 32, - PRS_HWIRQ_BASE = 0, - - RPS_STATUS = 0, - RPS_RAW_STATUS = 4, - RPS_UNMASK = 8, - RPS_MASK = 0xc, -}; - -/* - * Routines to acknowledge, disable and enable interrupts - */ -static void rps_mask_irq(struct irq_data *d) -{ - struct rps_chip_data *chip_data = irq_data_get_irq_chip_data(d); - u32 mask = BIT(d->hwirq); - - iowrite32(mask, chip_data->base + RPS_MASK); -} - -static void rps_unmask_irq(struct irq_data *d) -{ - struct rps_chip_data *chip_data = irq_data_get_irq_chip_data(d); - u32 mask = BIT(d->hwirq); - - iowrite32(mask, chip_data->base + RPS_UNMASK); -} - -static struct irq_chip rps_chip = { - .name = "RPS", - .irq_mask = rps_mask_irq, - .irq_unmask = rps_unmask_irq, -}; - -static int rps_irq_domain_xlate(struct irq_domain *d, - struct device_node *controller, - const u32 *intspec, unsigned int intsize, - unsigned long *out_hwirq, - unsigned int *out_type) -{ - if (irq_domain_get_of_node(d) != controller) - return -EINVAL; - if (intsize < 1) - return -EINVAL; - - *out_hwirq = intspec[0]; - /* Honestly I do not know the type */ - *out_type = IRQ_TYPE_LEVEL_HIGH; - - return 0; -} - -static int rps_irq_domain_map(struct irq_domain *d, unsigned int irq, - irq_hw_number_t hw) -{ - irq_set_chip_and_handler(irq, &rps_chip, handle_level_irq); - irq_set_probe(irq); - irq_set_chip_data(irq, d->host_data); - return 0; -} - -const struct irq_domain_ops rps_irq_domain_ops = { - .map = rps_irq_domain_map, - .xlate = rps_irq_domain_xlate, -}; - -static void rps_handle_cascade_irq(struct irq_desc *desc) -{ - struct rps_chip_data *chip_data = irq_desc_get_handler_data(desc); - struct irq_chip *chip = irq_desc_get_chip(desc); - unsigned int cascade_irq, rps_irq; - u32 status; - - chained_irq_enter(chip, desc); - - status = ioread32(chip_data->base + RPS_STATUS); - rps_irq = __ffs(status); - cascade_irq = irq_find_mapping(chip_data->domain, rps_irq); - - if (unlikely(rps_irq >= RPS_IRQ_COUNT)) - handle_bad_irq(desc); - else - generic_handle_irq(cascade_irq); - - chained_irq_exit(chip, desc); -} - -#ifdef CONFIG_OF -int __init rps_of_init(struct device_node *node, struct device_node *parent) -{ - void __iomem *rps_base; - int irq_start = RPS_IRQ_BASE; - int irq_base; - int irq; - - if (WARN_ON(!node)) - return -ENODEV; - - rps_base = of_iomap(node, 0); - WARN(!rps_base, "unable to map rps registers\n"); - rps_data.base = rps_base; - - irq_base = irq_alloc_descs(irq_start, 0, RPS_IRQ_COUNT, numa_node_id()); - if (IS_ERR_VALUE(irq_base)) { - WARN(1, "Cannot allocate irq_descs @ IRQ%d, assuming pre-allocated\n", - irq_start); - irq_base = irq_start; - } - - rps_data.domain = irq_domain_add_legacy(node, RPS_IRQ_COUNT, irq_base, - PRS_HWIRQ_BASE, &rps_irq_domain_ops, &rps_data); - - if (WARN_ON(!rps_data.domain)) - return -ENOMEM; - - if (parent) { - irq = irq_of_parse_and_map(node, 0); - if (irq_set_handler_data(irq, &rps_data) != 0) - BUG(); - irq_set_chained_handler(irq, rps_handle_cascade_irq); - } - return 0; - -} - -IRQCHIP_DECLARE(nas782x, "plxtech,nas782x-rps", rps_of_init); -#endif -- cgit v1.2.3