diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ipa/ipa_clock.c | 47 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_clock.h | 5 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_data-sc7180.c | 21 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_data-sdm845.c | 21 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_data.h | 31 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_main.c | 21 |
6 files changed, 112 insertions, 34 deletions
diff --git a/drivers/net/ipa/ipa_clock.c b/drivers/net/ipa/ipa_clock.c index a2c0fde05819..9dcf16f399b7 100644 --- a/drivers/net/ipa/ipa_clock.c +++ b/drivers/net/ipa/ipa_clock.c @@ -13,6 +13,7 @@ #include "ipa.h" #include "ipa_clock.h" #include "ipa_modem.h" +#include "ipa_data.h" /** * DOC: IPA Clocking @@ -29,18 +30,6 @@ * An IPA clock reference must be held for any access to IPA hardware. */ -#define IPA_CORE_CLOCK_RATE (75UL * 1000 * 1000) /* Hz */ - -/* Interconnect path bandwidths (each times 1000 bytes per second) */ -#define IPA_MEMORY_AVG (80 * 1000) /* 80 MBps */ -#define IPA_MEMORY_PEAK (600 * 1000) - -#define IPA_IMEM_AVG (80 * 1000) -#define IPA_IMEM_PEAK (350 * 1000) - -#define IPA_CONFIG_AVG (40 * 1000) -#define IPA_CONFIG_PEAK (40 * 1000) - /** * struct ipa_clock - IPA clocking information * @count: Clocking reference count @@ -49,6 +38,7 @@ * @memory_path: Memory interconnect * @imem_path: Internal memory interconnect * @config_path: Configuration space interconnect + * @interconnect_data: Interconnect configuration data */ struct ipa_clock { refcount_t count; @@ -57,6 +47,7 @@ struct ipa_clock { struct icc_path *memory_path; struct icc_path *imem_path; struct icc_path *config_path; + const struct ipa_interconnect_data *interconnect_data; }; static struct icc_path * @@ -113,18 +104,25 @@ static void ipa_interconnect_exit(struct ipa_clock *clock) /* Currently we only use one bandwidth level, so just "enable" interconnects */ static int ipa_interconnect_enable(struct ipa *ipa) { + const struct ipa_interconnect_data *data; struct ipa_clock *clock = ipa->clock; int ret; - ret = icc_set_bw(clock->memory_path, IPA_MEMORY_AVG, IPA_MEMORY_PEAK); + data = &clock->interconnect_data[IPA_INTERCONNECT_MEMORY]; + ret = icc_set_bw(clock->memory_path, data->average_rate, + data->peak_rate); if (ret) return ret; - ret = icc_set_bw(clock->imem_path, IPA_IMEM_AVG, IPA_IMEM_PEAK); + data = &clock->interconnect_data[IPA_INTERCONNECT_IMEM]; + ret = icc_set_bw(clock->memory_path, data->average_rate, + data->peak_rate); if (ret) goto err_memory_path_disable; - ret = icc_set_bw(clock->config_path, IPA_CONFIG_AVG, IPA_CONFIG_PEAK); + data = &clock->interconnect_data[IPA_INTERCONNECT_CONFIG]; + ret = icc_set_bw(clock->memory_path, data->average_rate, + data->peak_rate); if (ret) goto err_imem_path_disable; @@ -141,6 +139,7 @@ err_memory_path_disable: /* To disable an interconnect, we just its bandwidth to 0 */ static int ipa_interconnect_disable(struct ipa *ipa) { + const struct ipa_interconnect_data *data; struct ipa_clock *clock = ipa->clock; int ret; @@ -159,9 +158,13 @@ static int ipa_interconnect_disable(struct ipa *ipa) return 0; err_imem_path_reenable: - (void)icc_set_bw(clock->imem_path, IPA_IMEM_AVG, IPA_IMEM_PEAK); + data = &clock->interconnect_data[IPA_INTERCONNECT_IMEM]; + (void)icc_set_bw(clock->imem_path, data->average_rate, + data->peak_rate); err_memory_path_reenable: - (void)icc_set_bw(clock->memory_path, IPA_MEMORY_AVG, IPA_MEMORY_PEAK); + data = &clock->interconnect_data[IPA_INTERCONNECT_MEMORY]; + (void)icc_set_bw(clock->memory_path, data->average_rate, + data->peak_rate); return ret; } @@ -257,7 +260,8 @@ u32 ipa_clock_rate(struct ipa *ipa) } /* Initialize IPA clocking */ -struct ipa_clock *ipa_clock_init(struct device *dev) +struct ipa_clock * +ipa_clock_init(struct device *dev, const struct ipa_clock_data *data) { struct ipa_clock *clock; struct clk *clk; @@ -269,10 +273,10 @@ struct ipa_clock *ipa_clock_init(struct device *dev) return ERR_CAST(clk); } - ret = clk_set_rate(clk, IPA_CORE_CLOCK_RATE); + ret = clk_set_rate(clk, data->core_clock_rate); if (ret) { - dev_err(dev, "error %d setting core clock rate to %lu\n", - ret, IPA_CORE_CLOCK_RATE); + dev_err(dev, "error %d setting core clock rate to %u\n", + ret, data->core_clock_rate); goto err_clk_put; } @@ -282,6 +286,7 @@ struct ipa_clock *ipa_clock_init(struct device *dev) goto err_clk_put; } clock->core = clk; + clock->interconnect_data = data->interconnect; ret = ipa_interconnect_init(clock, dev); if (ret) diff --git a/drivers/net/ipa/ipa_clock.h b/drivers/net/ipa/ipa_clock.h index 1d70f1de3875..1fe634760e59 100644 --- a/drivers/net/ipa/ipa_clock.h +++ b/drivers/net/ipa/ipa_clock.h @@ -9,6 +9,7 @@ struct device; struct ipa; +struct ipa_clock_data; /** * ipa_clock_rate() - Return the current IPA core clock rate @@ -21,10 +22,12 @@ u32 ipa_clock_rate(struct ipa *ipa); /** * ipa_clock_init() - Initialize IPA clocking * @dev: IPA device + * @data: Clock configuration data * * Return: A pointer to an ipa_clock structure, or a pointer-coded error */ -struct ipa_clock *ipa_clock_init(struct device *dev); +struct ipa_clock *ipa_clock_init(struct device *dev, + const struct ipa_clock_data *data); /** * ipa_clock_exit() - Inverse of ipa_clock_init() diff --git a/drivers/net/ipa/ipa_data-sc7180.c b/drivers/net/ipa/ipa_data-sc7180.c index 37dada4da680..5cc0ed77edb9 100644 --- a/drivers/net/ipa/ipa_data-sc7180.c +++ b/drivers/net/ipa/ipa_data-sc7180.c @@ -309,6 +309,26 @@ static struct ipa_mem_data ipa_mem_data = { .smem_size = 0x00002000, }; +static struct ipa_clock_data ipa_clock_data = { + .core_clock_rate = 100 * 1000 * 1000, /* Hz */ + /* Interconnect rates are in 1000 byte/second units */ + .interconnect = { + [IPA_INTERCONNECT_MEMORY] = { + .peak_rate = 465000, /* 465 MBps */ + .average_rate = 80000, /* 80 MBps */ + }, + /* Average rate is unused for the next two interconnects */ + [IPA_INTERCONNECT_IMEM] = { + .peak_rate = 68570, /* 68.570 MBps */ + .average_rate = 0, /* unused */ + }, + [IPA_INTERCONNECT_CONFIG] = { + .peak_rate = 30000, /* 30 MBps */ + .average_rate = 0, /* unused */ + }, + }, +}; + /* Configuration data for the SC7180 SoC. */ const struct ipa_data ipa_data_sc7180 = { .version = IPA_VERSION_4_2, @@ -316,4 +336,5 @@ const struct ipa_data ipa_data_sc7180 = { .endpoint_data = ipa_gsi_endpoint_data, .resource_data = &ipa_resource_data, .mem_data = &ipa_mem_data, + .clock_data = &ipa_clock_data, }; diff --git a/drivers/net/ipa/ipa_data-sdm845.c b/drivers/net/ipa/ipa_data-sdm845.c index bd92b619e7fe..f8fee8d3ca42 100644 --- a/drivers/net/ipa/ipa_data-sdm845.c +++ b/drivers/net/ipa/ipa_data-sdm845.c @@ -329,6 +329,26 @@ static struct ipa_mem_data ipa_mem_data = { .smem_size = 0x00002000, }; +static struct ipa_clock_data ipa_clock_data = { + .core_clock_rate = 75 * 1000 * 1000, /* Hz */ + /* Interconnect rates are in 1000 byte/second units */ + .interconnect = { + [IPA_INTERCONNECT_MEMORY] = { + .peak_rate = 600000, /* 600 MBps */ + .average_rate = 80000, /* 80 MBps */ + }, + /* Average rate is unused for the next two interconnects */ + [IPA_INTERCONNECT_IMEM] = { + .peak_rate = 350000, /* 350 MBps */ + .average_rate = 0, /* unused */ + }, + [IPA_INTERCONNECT_CONFIG] = { + .peak_rate = 40000, /* 40 MBps */ + .average_rate = 0, /* unused */ + }, + }, +}; + /* Configuration data for the SDM845 SoC. */ const struct ipa_data ipa_data_sdm845 = { .version = IPA_VERSION_3_5_1, @@ -336,4 +356,5 @@ const struct ipa_data ipa_data_sdm845 = { .endpoint_data = ipa_gsi_endpoint_data, .resource_data = &ipa_resource_data, .mem_data = &ipa_mem_data, + .clock_data = &ipa_clock_data, }; diff --git a/drivers/net/ipa/ipa_data.h b/drivers/net/ipa/ipa_data.h index 83c4b78373ef..0ed5ffe2b8da 100644 --- a/drivers/net/ipa/ipa_data.h +++ b/drivers/net/ipa/ipa_data.h @@ -241,7 +241,7 @@ struct ipa_resource_data { }; /** - * struct ipa_mem - description of IPA memory regions + * struct ipa_mem_data - description of IPA memory regions * @local_count: number of regions defined in the local[] array * @local: array of IPA-local memory region descriptors * @imem_addr: physical address of IPA region within IMEM @@ -258,6 +258,34 @@ struct ipa_mem_data { u32 smem_size; }; +/** enum ipa_interconnect_id - IPA interconnect identifier */ +enum ipa_interconnect_id { + IPA_INTERCONNECT_MEMORY, + IPA_INTERCONNECT_IMEM, + IPA_INTERCONNECT_CONFIG, + IPA_INTERCONNECT_COUNT, /* Last; not an interconnect */ +}; + +/** + * struct ipa_interconnect_data - description of IPA interconnect rates + * @peak_rate: Peak interconnect bandwidth (in 1000 byte/sec units) + * @average_rate: Average interconnect bandwidth (in 1000 byte/sec units) + */ +struct ipa_interconnect_data { + u32 peak_rate; + u32 average_rate; +}; + +/** + * struct ipa_clock_data - description of IPA clock and interconnect rates + * @core_clock_rate: Core clock rate (Hz) + * @interconnect: Array of interconnect bandwidth parameters + */ +struct ipa_clock_data { + u32 core_clock_rate; + struct ipa_interconnect_data interconnect[IPA_INTERCONNECT_COUNT]; +}; + /** * struct ipa_data - combined IPA/GSI configuration data * @version: IPA hardware version @@ -273,6 +301,7 @@ struct ipa_data { const struct ipa_gsi_endpoint_data *endpoint_data; const struct ipa_resource_data *resource_data; const struct ipa_mem_data *mem_data; + const struct ipa_clock_data *clock_data; }; extern const struct ipa_data ipa_data_sdm845; diff --git a/drivers/net/ipa/ipa_main.c b/drivers/net/ipa/ipa_main.c index 3fb9c5d90b70..468ab1acc20e 100644 --- a/drivers/net/ipa/ipa_main.c +++ b/drivers/net/ipa/ipa_main.c @@ -728,6 +728,14 @@ static int ipa_probe(struct platform_device *pdev) ipa_validate_build(); + /* Get configuration data early; needed for clock initialization */ + data = of_device_get_match_data(dev); + if (!data) { + /* This is really IPA_VALIDATE (should never happen) */ + dev_err(dev, "matched hardware not supported\n"); + return -ENODEV; + } + /* If we need Trust Zone, make sure it's available */ modem_init = of_property_read_bool(dev->of_node, "modem-init"); if (!modem_init) @@ -748,22 +756,13 @@ static int ipa_probe(struct platform_device *pdev) /* The clock and interconnects might not be ready when we're * probed, so might return -EPROBE_DEFER. */ - clock = ipa_clock_init(dev); + clock = ipa_clock_init(dev, data->clock_data); if (IS_ERR(clock)) { ret = PTR_ERR(clock); goto err_rproc_put; } - /* No more EPROBE_DEFER. Get our configuration data */ - data = of_device_get_match_data(dev); - if (!data) { - /* This is really IPA_VALIDATE (should never happen) */ - dev_err(dev, "matched hardware not supported\n"); - ret = -ENOTSUPP; - goto err_clock_exit; - } - - /* Allocate and initialize the IPA structure */ + /* No more EPROBE_DEFER. Allocate and initialize the IPA structure */ ipa = kzalloc(sizeof(*ipa), GFP_KERNEL); if (!ipa) { ret = -ENOMEM; |