diff options
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/bus/fsl-mc/dprc-driver.c | 57 | ||||
| -rw-r--r-- | drivers/bus/fsl-mc/fsl-mc-bus.c | 30 | ||||
| -rw-r--r-- | drivers/bus/fsl-mc/mc-io.c | 2 | ||||
| -rw-r--r-- | drivers/bus/fsl-mc/mc-sys.c | 4 | ||||
| -rw-r--r-- | drivers/bus/mips_cdmm.c | 15 |
6 files changed, 89 insertions, 21 deletions
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig index c8818e3b1079..0c262c2aeaf2 100644 --- a/drivers/bus/Kconfig +++ b/drivers/bus/Kconfig @@ -97,7 +97,7 @@ config IMX_WEIM config MIPS_CDMM bool "MIPS Common Device Memory Map (CDMM) Driver" - depends on CPU_MIPSR2 + depends on CPU_MIPSR2 || CPU_MIPSR5 help Driver needed for the MIPS Common Device Memory Map bus in MIPS cores. This bus is for per-CPU tightly coupled devices such as the diff --git a/drivers/bus/fsl-mc/dprc-driver.c b/drivers/bus/fsl-mc/dprc-driver.c index 189bff2115a8..2a473c09bc33 100644 --- a/drivers/bus/fsl-mc/dprc-driver.c +++ b/drivers/bus/fsl-mc/dprc-driver.c @@ -27,7 +27,16 @@ static bool fsl_mc_device_match(struct fsl_mc_device *mc_dev, { return mc_dev->obj_desc.id == obj_desc->id && strcmp(mc_dev->obj_desc.type, obj_desc->type) == 0; +} +static bool fsl_mc_obj_desc_is_allocatable(struct fsl_mc_obj_desc *obj) +{ + if (strcmp(obj->type, "dpmcp") == 0 || + strcmp(obj->type, "dpcon") == 0 || + strcmp(obj->type, "dpbp") == 0) + return true; + else + return false; } static int __fsl_mc_device_remove_if_not_in_mc(struct device *dev, void *data) @@ -150,6 +159,27 @@ static void check_plugged_state_change(struct fsl_mc_device *mc_dev, } } +static void fsl_mc_obj_device_add(struct fsl_mc_device *mc_bus_dev, + struct fsl_mc_obj_desc *obj_desc) +{ + int error; + struct fsl_mc_device *child_dev; + + /* + * Check if device is already known to Linux: + */ + child_dev = fsl_mc_device_lookup(obj_desc, mc_bus_dev); + if (child_dev) { + check_plugged_state_change(child_dev, obj_desc); + put_device(&child_dev->dev); + } else { + error = fsl_mc_device_add(obj_desc, NULL, &mc_bus_dev->dev, + &child_dev); + if (error < 0) + return; + } +} + /** * dprc_add_new_devices - Adds devices to the logical bus for a DPRC * @@ -166,30 +196,23 @@ static void dprc_add_new_devices(struct fsl_mc_device *mc_bus_dev, struct fsl_mc_obj_desc *obj_desc_array, int num_child_objects_in_mc) { - int error; int i; + /* probe the allocable objects first */ for (i = 0; i < num_child_objects_in_mc; i++) { - struct fsl_mc_device *child_dev; struct fsl_mc_obj_desc *obj_desc = &obj_desc_array[i]; - if (strlen(obj_desc->type) == 0) - continue; + if (strlen(obj_desc->type) > 0 && + fsl_mc_obj_desc_is_allocatable(obj_desc)) + fsl_mc_obj_device_add(mc_bus_dev, obj_desc); + } - /* - * Check if device is already known to Linux: - */ - child_dev = fsl_mc_device_lookup(obj_desc, mc_bus_dev); - if (child_dev) { - check_plugged_state_change(child_dev, obj_desc); - put_device(&child_dev->dev); - continue; - } + for (i = 0; i < num_child_objects_in_mc; i++) { + struct fsl_mc_obj_desc *obj_desc = &obj_desc_array[i]; - error = fsl_mc_device_add(obj_desc, NULL, &mc_bus_dev->dev, - &child_dev); - if (error < 0) - continue; + if (strlen(obj_desc->type) > 0 && + !fsl_mc_obj_desc_is_allocatable(obj_desc)) + fsl_mc_obj_device_add(mc_bus_dev, obj_desc); } } diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c index 324d49d6df89..b69794e7364d 100644 --- a/drivers/bus/fsl-mc/fsl-mc-bus.c +++ b/drivers/bus/fsl-mc/fsl-mc-bus.c @@ -213,6 +213,31 @@ struct device_type fsl_mc_bus_dpseci_type = { }; EXPORT_SYMBOL_GPL(fsl_mc_bus_dpseci_type); +struct device_type fsl_mc_bus_dpdmux_type = { + .name = "fsl_mc_bus_dpdmux" +}; +EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdmux_type); + +struct device_type fsl_mc_bus_dpdcei_type = { + .name = "fsl_mc_bus_dpdcei" +}; +EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdcei_type); + +struct device_type fsl_mc_bus_dpaiop_type = { + .name = "fsl_mc_bus_dpaiop" +}; +EXPORT_SYMBOL_GPL(fsl_mc_bus_dpaiop_type); + +struct device_type fsl_mc_bus_dpci_type = { + .name = "fsl_mc_bus_dpci" +}; +EXPORT_SYMBOL_GPL(fsl_mc_bus_dpci_type); + +struct device_type fsl_mc_bus_dpdmai_type = { + .name = "fsl_mc_bus_dpdmai" +}; +EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdmai_type); + static struct device_type *fsl_mc_get_device_type(const char *type) { static const struct { @@ -229,6 +254,11 @@ static struct device_type *fsl_mc_get_device_type(const char *type) { &fsl_mc_bus_dpmac_type, "dpmac" }, { &fsl_mc_bus_dprtc_type, "dprtc" }, { &fsl_mc_bus_dpseci_type, "dpseci" }, + { &fsl_mc_bus_dpdmux_type, "dpdmux" }, + { &fsl_mc_bus_dpdcei_type, "dpdcei" }, + { &fsl_mc_bus_dpaiop_type, "dpaiop" }, + { &fsl_mc_bus_dpci_type, "dpci" }, + { &fsl_mc_bus_dpdmai_type, "dpdmai" }, { NULL, NULL } }; int i; diff --git a/drivers/bus/fsl-mc/mc-io.c b/drivers/bus/fsl-mc/mc-io.c index 6ae48ad80409..a30b53f1d87d 100644 --- a/drivers/bus/fsl-mc/mc-io.c +++ b/drivers/bus/fsl-mc/mc-io.c @@ -82,7 +82,7 @@ int __must_check fsl_create_mc_io(struct device *dev, mc_io->portal_phys_addr = mc_portal_phys_addr; mc_io->portal_size = mc_portal_size; if (flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL) - spin_lock_init(&mc_io->spinlock); + raw_spin_lock_init(&mc_io->spinlock); else mutex_init(&mc_io->mutex); diff --git a/drivers/bus/fsl-mc/mc-sys.c b/drivers/bus/fsl-mc/mc-sys.c index 3221a7fbaf0a..85a0225db522 100644 --- a/drivers/bus/fsl-mc/mc-sys.c +++ b/drivers/bus/fsl-mc/mc-sys.c @@ -251,7 +251,7 @@ int mc_send_command(struct fsl_mc_io *mc_io, struct fsl_mc_command *cmd) return -EINVAL; if (mc_io->flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL) - spin_lock_irqsave(&mc_io->spinlock, irq_flags); + raw_spin_lock_irqsave(&mc_io->spinlock, irq_flags); else mutex_lock(&mc_io->mutex); @@ -287,7 +287,7 @@ int mc_send_command(struct fsl_mc_io *mc_io, struct fsl_mc_command *cmd) error = 0; common_exit: if (mc_io->flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL) - spin_unlock_irqrestore(&mc_io->spinlock, irq_flags); + raw_spin_unlock_irqrestore(&mc_io->spinlock, irq_flags); else mutex_unlock(&mc_io->mutex); diff --git a/drivers/bus/mips_cdmm.c b/drivers/bus/mips_cdmm.c index 1b14256376d2..9f7ed1fcd428 100644 --- a/drivers/bus/mips_cdmm.c +++ b/drivers/bus/mips_cdmm.c @@ -13,6 +13,8 @@ #include <linux/cpu.h> #include <linux/cpumask.h> #include <linux/io.h> +#include <linux/of_address.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/smp.h> @@ -337,9 +339,22 @@ static phys_addr_t mips_cdmm_cur_base(void) * Picking a suitable physical address at which to map the CDMM region is * platform specific, so this weak function can be overridden by platform * code to pick a suitable value if none is configured by the bootloader. + * By default this method tries to find a CDMM-specific node in the system + * dtb. Note that this won't work for early serial console. */ phys_addr_t __weak mips_cdmm_phys_base(void) { + struct device_node *np; + struct resource res; + int err; + + np = of_find_compatible_node(NULL, NULL, "mti,mips-cdmm"); + if (np) { + err = of_address_to_resource(np, 0, &res); + if (!err) + return res.start; + } + return 0; } |