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zephyr/boards/arc/hsdk/platform.c

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ARC: boards: HSDK: ged rid of pinmux usage Pinmux is deprecated (see #39740) so let's get rid of it's usage for HSDK board. As we call pinmux only once at init phase we simply do register setup in platform code instead of pinmux. Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
2022-05-04 21:25:48 +08:00
/*
* Copyright (c) 2022 Synopsys
*
* SPDX-License-Identifier: Apache-2.0
*/
include: add missing arch/cpu.h include The sys* ops like sys_clear_bit are indirectly included via arch CPU header. Other stuff like find_msb_set end up included via this header as well. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-10-04 21:44:11 +08:00
#include <zephyr/arch/cpu.h>
include: add more missing zephyr/ prefixes Adds few missing zephyr/ prefixes to leftover #include statements that either got added recently or were using double quote format. Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
2022-05-25 23:31:28 +08:00
#include <zephyr/init.h>
ARC: boards: HSDK: ged rid of pinmux usage Pinmux is deprecated (see #39740) so let's get rid of it's usage for HSDK board. As we call pinmux only once at init phase we simply do register setup in platform code instead of pinmux. Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
2022-05-04 21:25:48 +08:00
#define HSDK_CREG_GPIO_MUX_REG 0xf0001484
#define HSDK_CREG_GPIO_MUX_VAL 0x00000400
init: remove the need for a dummy device pointer in SYS_INIT functions The init infrastructure, found in `init.h`, is currently used by: - `SYS_INIT`: to call functions before `main` - `DEVICE_*`: to initialize devices They are all sorted according to an initialization level + a priority. `SYS_INIT` calls are really orthogonal to devices, however, the required function signature requires a `const struct device *dev` as a first argument. The only reason for that is because the same init machinery is used by devices, so we have something like: ```c struct init_entry { int (*init)(const struct device *dev); /* only set by DEVICE_*, otherwise NULL */ const struct device *dev; } ``` As a result, we end up with such weird/ugly pattern: ```c static int my_init(const struct device *dev) { /* always NULL! add ARG_UNUSED to avoid compiler warning */ ARG_UNUSED(dev); ... } ``` This is really a result of poor internals isolation. This patch proposes a to make init entries more flexible so that they can accept sytem initialization calls like this: ```c static int my_init(void) { ... } ``` This is achieved using a union: ```c union init_function { /* for SYS_INIT, used when init_entry.dev == NULL */ int (*sys)(void); /* for DEVICE*, used when init_entry.dev != NULL */ int (*dev)(const struct device *dev); }; struct init_entry { /* stores init function (either for SYS_INIT or DEVICE*) union init_function init_fn; /* stores device pointer for DEVICE*, NULL for SYS_INIT. Allows * to know which union entry to call. */ const struct device *dev; } ``` This solution **does not increase ROM usage**, and allows to offer clean public APIs for both SYS_INIT and DEVICE*. Note that however, init machinery keeps a coupling with devices. **NOTE**: This is a breaking change! All `SYS_INIT` functions will need to be converted to the new signature. See the script offered in the following commit. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no> init: convert SYS_INIT functions to the new signature Conversion scripted using scripts/utils/migrate_sys_init.py. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no> manifest: update projects for SYS_INIT changes Update modules with updated SYS_INIT calls: - hal_ti - lvgl - sof - TraceRecorderSource Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no> tests: devicetree: devices: adjust test Adjust test according to the recently introduced SYS_INIT infrastructure. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no> tests: kernel: threads: adjust SYS_INIT call Adjust to the new signature: int (*init_fn)(void); Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-10-19 15:33:44 +08:00
static int hsdk_creg_gpio_mux_init(void)
ARC: boards: HSDK: ged rid of pinmux usage Pinmux is deprecated (see #39740) so let's get rid of it's usage for HSDK board. As we call pinmux only once at init phase we simply do register setup in platform code instead of pinmux. Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
2022-05-04 21:25:48 +08:00
{
sys_write32(HSDK_CREG_GPIO_MUX_REG, HSDK_CREG_GPIO_MUX_VAL);
return 0;
}
SYS_INIT(hsdk_creg_gpio_mux_init, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);