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757 lines
21 KiB
757 lines
21 KiB
/* |
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* Copyright (c) 2018 Linaro Limited |
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* Copyright (c) 2022 Arm Limited (or its affiliates). All rights reserved. |
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* Copyright (c) 2023 Antmicro <www.antmicro.com> |
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* |
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* SPDX-License-Identifier: Apache-2.0 |
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*/ |
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|
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#define DT_DRV_COMPAT arm_pl011 |
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#define SBSA_COMPAT arm_sbsa_uart |
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|
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#include <string.h> |
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#include <zephyr/kernel.h> |
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#include <zephyr/arch/cpu.h> |
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#include <zephyr/init.h> |
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#include <zephyr/device.h> |
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#include <zephyr/drivers/uart.h> |
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#include <zephyr/sys/device_mmio.h> |
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#include <zephyr/sys/barrier.h> |
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#include <zephyr/irq.h> |
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#if defined(CONFIG_PINCTRL) |
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#include <zephyr/drivers/pinctrl.h> |
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#endif |
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#if defined(CONFIG_RESET) |
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#include <zephyr/drivers/reset.h> |
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#endif |
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#if defined(CONFIG_CLOCK_CONTROL) |
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#include <zephyr/drivers/clock_control.h> |
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#endif |
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#ifdef CONFIG_CPU_CORTEX_M |
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#include <cmsis_compiler.h> |
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#endif |
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#include "uart_pl011_registers.h" |
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#if defined(CONFIG_SOC_FAMILY_AMBIQ) |
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#include "uart_pl011_ambiq.h" |
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#endif |
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#if defined(CONFIG_SOC_SERIES_APOLLO3X) || defined(CONFIG_SOC_SERIES_APOLLO5X) |
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#define PM_INST_GET(n) PM_DEVICE_DT_INST_GET(n) |
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#else |
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#define PM_INST_GET(n) NULL |
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#endif |
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#include "uart_pl011_raspberrypi_pico.h" |
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struct pl011_config { |
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DEVICE_MMIO_ROM; |
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#if defined(CONFIG_PINCTRL) |
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const struct pinctrl_dev_config *pincfg; |
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#endif |
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#if defined(CONFIG_RESET) |
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const struct reset_dt_spec reset; |
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#endif |
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#if defined(CONFIG_CLOCK_CONTROL) |
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const struct device *clock_dev; |
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clock_control_subsys_t clock_id; |
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#endif |
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#ifdef CONFIG_UART_INTERRUPT_DRIVEN |
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uart_irq_config_func_t irq_config_func; |
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#endif |
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bool fifo_disable; |
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int (*clk_enable_func)(const struct device *dev, uint32_t clk); |
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int (*pwr_on_func)(void); |
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}; |
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|
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/* Device data structure */ |
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struct pl011_data { |
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DEVICE_MMIO_RAM; |
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struct uart_config uart_cfg; |
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bool sbsa; /* SBSA mode */ |
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uint32_t clk_freq; |
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#ifdef CONFIG_UART_INTERRUPT_DRIVEN |
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volatile bool sw_call_txdrdy; |
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uart_irq_callback_user_data_t irq_cb; |
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struct k_spinlock irq_cb_lock; |
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void *irq_cb_data; |
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#endif |
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}; |
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static void pl011_enable(const struct device *dev) |
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{ |
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get_uart(dev)->cr |= PL011_CR_UARTEN; |
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} |
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static void pl011_disable(const struct device *dev) |
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{ |
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get_uart(dev)->cr &= ~PL011_CR_UARTEN; |
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} |
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static void pl011_enable_fifo(const struct device *dev) |
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{ |
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get_uart(dev)->lcr_h |= PL011_LCRH_FEN; |
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} |
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static void pl011_disable_fifo(const struct device *dev) |
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{ |
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get_uart(dev)->lcr_h &= ~PL011_LCRH_FEN; |
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} |
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static void pl011_set_flow_control(const struct device *dev, bool rts, bool cts) |
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{ |
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if (rts) { |
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get_uart(dev)->cr |= PL011_CR_RTSEn; |
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} else { |
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get_uart(dev)->cr &= ~PL011_CR_RTSEn; |
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} |
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if (cts) { |
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get_uart(dev)->cr |= PL011_CR_CTSEn; |
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} else { |
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get_uart(dev)->cr &= ~PL011_CR_CTSEn; |
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} |
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} |
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static int pl011_set_baudrate(const struct device *dev, |
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uint32_t clk, uint32_t baudrate) |
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{ |
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/* Avoiding float calculations, bauddiv is left shifted by 6 */ |
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uint64_t bauddiv = (((uint64_t)clk) << PL011_FBRD_WIDTH) |
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/ (baudrate * 16U); |
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/* Valid bauddiv value |
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* uart_clk (min) >= 16 x baud_rate (max) |
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* uart_clk (max) <= 16 x 65535 x baud_rate (min) |
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*/ |
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if ((bauddiv < (1u << PL011_FBRD_WIDTH)) |
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|| (bauddiv > (65535u << PL011_FBRD_WIDTH))) { |
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return -EINVAL; |
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} |
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get_uart(dev)->ibrd = bauddiv >> PL011_FBRD_WIDTH; |
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get_uart(dev)->fbrd = bauddiv & ((1u << PL011_FBRD_WIDTH) - 1u); |
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barrier_dmem_fence_full(); |
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/* In order to internally update the contents of ibrd or fbrd, a |
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* lcr_h write must always be performed at the end |
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* ARM DDI 0183F, Pg 3-13 |
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*/ |
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get_uart(dev)->lcr_h = get_uart(dev)->lcr_h; |
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return 0; |
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} |
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static bool pl011_is_readable(const struct device *dev) |
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{ |
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struct pl011_data *data = dev->data; |
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if (!data->sbsa && |
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(!(get_uart(dev)->cr & PL011_CR_UARTEN) || !(get_uart(dev)->cr & PL011_CR_RXE))) { |
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return false; |
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} |
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return (get_uart(dev)->fr & PL011_FR_RXFE) == 0U; |
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} |
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static int pl011_poll_in(const struct device *dev, unsigned char *c) |
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{ |
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if (!pl011_is_readable(dev)) { |
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return -1; |
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} |
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/* got a character */ |
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*c = (unsigned char)get_uart(dev)->dr; |
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return get_uart(dev)->rsr & PL011_RSR_ERROR_MASK; |
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} |
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static void pl011_poll_out(const struct device *dev, |
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unsigned char c) |
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{ |
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/* Wait for space in FIFO */ |
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while (get_uart(dev)->fr & PL011_FR_TXFF) { |
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; /* Wait */ |
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} |
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/* Send a character */ |
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get_uart(dev)->dr = (uint32_t)c; |
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} |
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static int pl011_err_check(const struct device *dev) |
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{ |
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int errors = 0; |
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if (get_uart(dev)->rsr & PL011_RSR_ECR_OE) { |
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errors |= UART_ERROR_OVERRUN; |
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} |
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if (get_uart(dev)->rsr & PL011_RSR_ECR_BE) { |
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errors |= UART_BREAK; |
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} |
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if (get_uart(dev)->rsr & PL011_RSR_ECR_PE) { |
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errors |= UART_ERROR_PARITY; |
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} |
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if (get_uart(dev)->rsr & PL011_RSR_ECR_FE) { |
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errors |= UART_ERROR_FRAMING; |
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} |
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return errors; |
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} |
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static int pl011_runtime_configure_internal(const struct device *dev, |
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const struct uart_config *cfg, |
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bool disable) |
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{ |
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const struct pl011_config *config = dev->config; |
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struct pl011_data *data = dev->data; |
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uint32_t lcrh; |
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int ret = -ENOTSUP; |
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if (data->sbsa) { |
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goto out; |
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} |
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if (disable) { |
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pl011_disable(dev); |
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pl011_disable_fifo(dev); |
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} |
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lcrh = get_uart(dev)->lcr_h & ~(PL011_LCRH_FORMAT_MASK | PL011_LCRH_STP2); |
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switch (cfg->parity) { |
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case UART_CFG_PARITY_NONE: |
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lcrh &= ~(BIT(1) | BIT(2)); |
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break; |
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case UART_CFG_PARITY_ODD: |
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lcrh |= PL011_LCRH_PARITY_ODD; |
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break; |
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case UART_CFG_PARITY_EVEN: |
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lcrh |= PL011_LCRH_PARTIY_EVEN; |
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break; |
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default: |
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goto enable; |
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} |
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switch (cfg->stop_bits) { |
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case UART_CFG_STOP_BITS_1: |
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lcrh &= ~(PL011_LCRH_STP2); |
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break; |
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case UART_CFG_STOP_BITS_2: |
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lcrh |= PL011_LCRH_STP2; |
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break; |
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default: |
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goto enable; |
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} |
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switch (cfg->data_bits) { |
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case UART_CFG_DATA_BITS_5: |
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lcrh |= PL011_LCRH_WLEN_SIZE(5) << PL011_LCRH_WLEN_SHIFT; |
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break; |
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case UART_CFG_DATA_BITS_6: |
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lcrh |= PL011_LCRH_WLEN_SIZE(6) << PL011_LCRH_WLEN_SHIFT; |
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break; |
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case UART_CFG_DATA_BITS_7: |
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lcrh |= PL011_LCRH_WLEN_SIZE(7) << PL011_LCRH_WLEN_SHIFT; |
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break; |
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case UART_CFG_DATA_BITS_8: |
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lcrh |= PL011_LCRH_WLEN_SIZE(8) << PL011_LCRH_WLEN_SHIFT; |
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break; |
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default: |
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goto enable; |
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} |
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switch (cfg->flow_ctrl) { |
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case UART_CFG_FLOW_CTRL_NONE: |
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pl011_set_flow_control(dev, false, false); |
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break; |
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case UART_CFG_FLOW_CTRL_RTS_CTS: |
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pl011_set_flow_control(dev, true, true); |
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break; |
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default: |
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goto enable; |
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} |
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/* Set baud rate */ |
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ret = pl011_set_baudrate(dev, data->clk_freq, cfg->baudrate); |
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if (ret != 0) { |
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goto enable; |
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} |
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/* Update settings */ |
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get_uart(dev)->lcr_h = lcrh; |
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memcpy(&data->uart_cfg, cfg, sizeof(data->uart_cfg)); |
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enable: |
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if (disable) { |
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if (!config->fifo_disable) { |
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pl011_enable_fifo(dev); |
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} |
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pl011_enable(dev); |
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} |
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out: |
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return ret; |
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} |
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#ifdef CONFIG_UART_USE_RUNTIME_CONFIGURE |
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static int pl011_runtime_configure(const struct device *dev, |
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const struct uart_config *cfg) |
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{ |
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return pl011_runtime_configure_internal(dev, cfg, true); |
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} |
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static int pl011_runtime_config_get(const struct device *dev, |
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struct uart_config *cfg) |
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{ |
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struct pl011_data *data = dev->data; |
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*cfg = data->uart_cfg; |
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return 0; |
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} |
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#endif /* CONFIG_UART_USE_RUNTIME_CONFIGURE */ |
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#ifdef CONFIG_UART_INTERRUPT_DRIVEN |
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static int pl011_fifo_fill(const struct device *dev, |
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const uint8_t *tx_data, int len) |
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{ |
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int num_tx = 0U; |
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while (!(get_uart(dev)->fr & PL011_FR_TXFF) && (len - num_tx > 0)) { |
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get_uart(dev)->dr = tx_data[num_tx++]; |
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} |
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return num_tx; |
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} |
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static int pl011_fifo_read(const struct device *dev, |
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uint8_t *rx_data, const int len) |
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{ |
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int num_rx = 0U; |
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while ((len - num_rx > 0) && !(get_uart(dev)->fr & PL011_FR_RXFE)) { |
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rx_data[num_rx++] = get_uart(dev)->dr; |
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} |
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return num_rx; |
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} |
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static void pl011_irq_tx_enable(const struct device *dev) |
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{ |
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struct pl011_data *data = dev->data; |
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get_uart(dev)->imsc |= PL011_IMSC_TXIM; |
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if (!data->sw_call_txdrdy) { |
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return; |
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} |
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data->sw_call_txdrdy = false; |
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/* |
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* Verify if the callback has been registered. Due to HW limitation, the |
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* first TX interrupt should be triggered by the software. |
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* |
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* PL011 TX interrupt is based on a transition through a level, rather |
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* than on the level itself[1]. So that, enable TX interrupt can not |
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* trigger TX interrupt if no data was filled to TX FIFO at the |
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* beginning. |
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* |
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* [1]: PrimeCell UART (PL011) Technical Reference Manual |
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* functional-overview/interrupts |
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*/ |
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if (!data->irq_cb) { |
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return; |
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} |
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/* |
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* Execute callback while TX interrupt remains enabled. If |
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* uart_fifo_fill() is called with small amounts of data, the 1/8 TX |
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* FIFO threshold may never be reached, and the hardware TX interrupt |
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* will never trigger. |
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*/ |
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while (get_uart(dev)->imsc & PL011_IMSC_TXIM) { |
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K_SPINLOCK(&data->irq_cb_lock) { |
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data->irq_cb(dev, data->irq_cb_data); |
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} |
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} |
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} |
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static void pl011_irq_tx_disable(const struct device *dev) |
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{ |
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struct pl011_data *data = dev->data; |
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data->sw_call_txdrdy = true; |
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get_uart(dev)->imsc &= ~PL011_IMSC_TXIM; |
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} |
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static int pl011_irq_tx_complete(const struct device *dev) |
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{ |
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/* Check for UART is busy transmitting data. */ |
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return ((get_uart(dev)->fr & PL011_FR_BUSY) == 0); |
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} |
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static int pl011_irq_tx_ready(const struct device *dev) |
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{ |
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struct pl011_data *data = dev->data; |
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if (!data->sbsa && !(get_uart(dev)->cr & PL011_CR_TXE)) { |
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return false; |
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} |
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return ((get_uart(dev)->imsc & PL011_IMSC_TXIM) && |
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/* Check for TX interrupt status is set or TX FIFO is empty. */ |
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(get_uart(dev)->ris & PL011_RIS_TXRIS || get_uart(dev)->fr & PL011_FR_TXFE)); |
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} |
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static void pl011_irq_rx_enable(const struct device *dev) |
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{ |
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get_uart(dev)->imsc |= PL011_IMSC_RXIM | PL011_IMSC_RTIM; |
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} |
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static void pl011_irq_rx_disable(const struct device *dev) |
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{ |
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get_uart(dev)->imsc &= ~(PL011_IMSC_RXIM | PL011_IMSC_RTIM); |
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} |
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static int pl011_irq_rx_ready(const struct device *dev) |
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{ |
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struct pl011_data *data = dev->data; |
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if (!data->sbsa && !(get_uart(dev)->cr & PL011_CR_RXE)) { |
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return false; |
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} |
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return ((get_uart(dev)->imsc & PL011_IMSC_RXIM) && |
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(!(get_uart(dev)->fr & PL011_FR_RXFE))); |
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} |
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static void pl011_irq_err_enable(const struct device *dev) |
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{ |
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/* enable framing, parity, break, and overrun */ |
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get_uart(dev)->imsc |= PL011_IMSC_ERROR_MASK; |
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} |
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static void pl011_irq_err_disable(const struct device *dev) |
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{ |
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get_uart(dev)->imsc &= ~PL011_IMSC_ERROR_MASK; |
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} |
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static int pl011_irq_is_pending(const struct device *dev) |
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{ |
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return pl011_irq_rx_ready(dev) || pl011_irq_tx_ready(dev); |
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} |
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static int pl011_irq_update(const struct device *dev) |
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{ |
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return 1; |
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} |
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static void pl011_irq_callback_set(const struct device *dev, |
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uart_irq_callback_user_data_t cb, |
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void *cb_data) |
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{ |
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struct pl011_data *data = dev->data; |
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data->irq_cb = cb; |
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data->irq_cb_data = cb_data; |
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} |
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#endif /* CONFIG_UART_INTERRUPT_DRIVEN */ |
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static DEVICE_API(uart, pl011_driver_api) = { |
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.poll_in = pl011_poll_in, |
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.poll_out = pl011_poll_out, |
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.err_check = pl011_err_check, |
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#ifdef CONFIG_UART_USE_RUNTIME_CONFIGURE |
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.configure = pl011_runtime_configure, |
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.config_get = pl011_runtime_config_get, |
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#endif |
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#ifdef CONFIG_UART_INTERRUPT_DRIVEN |
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.fifo_fill = pl011_fifo_fill, |
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.fifo_read = pl011_fifo_read, |
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.irq_tx_enable = pl011_irq_tx_enable, |
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.irq_tx_disable = pl011_irq_tx_disable, |
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.irq_tx_ready = pl011_irq_tx_ready, |
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.irq_rx_enable = pl011_irq_rx_enable, |
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.irq_rx_disable = pl011_irq_rx_disable, |
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.irq_tx_complete = pl011_irq_tx_complete, |
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.irq_rx_ready = pl011_irq_rx_ready, |
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.irq_err_enable = pl011_irq_err_enable, |
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.irq_err_disable = pl011_irq_err_disable, |
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.irq_is_pending = pl011_irq_is_pending, |
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.irq_update = pl011_irq_update, |
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.irq_callback_set = pl011_irq_callback_set, |
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#endif /* CONFIG_UART_INTERRUPT_DRIVEN */ |
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}; |
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static int pl011_init(const struct device *dev) |
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{ |
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const struct pl011_config *config = dev->config; |
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struct pl011_data *data = dev->data; |
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int ret; |
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|
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DEVICE_MMIO_MAP(dev, K_MEM_CACHE_NONE); |
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|
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#if defined(CONFIG_RESET) |
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if (config->reset.dev) { |
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ret = reset_line_toggle_dt(&config->reset); |
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if (ret) { |
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return ret; |
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} |
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} |
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#endif |
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#if defined(CONFIG_CLOCK_CONTROL) |
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if (config->clock_dev) { |
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clock_control_on(config->clock_dev, config->clock_id); |
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clock_control_get_rate(config->clock_dev, config->clock_id, &data->clk_freq); |
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} |
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#endif |
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|
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/* |
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* If working in SBSA mode, we assume that UART is already configured, |
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* or does not require configuration at all (if UART is emulated by |
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* virtualization software). |
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*/ |
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if (!data->sbsa) { |
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#if defined(CONFIG_PINCTRL) |
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ret = pinctrl_apply_state(config->pincfg, PINCTRL_STATE_DEFAULT); |
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if (ret) { |
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return ret; |
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} |
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#endif |
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/* Call vendor-specific function to power on the peripheral */ |
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if (config->pwr_on_func != NULL) { |
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ret = config->pwr_on_func(); |
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} |
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|
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/* disable the uart */ |
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pl011_disable(dev); |
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pl011_disable_fifo(dev); |
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|
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/* Call vendor-specific function to enable clock for the peripheral */ |
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if (config->clk_enable_func != NULL) { |
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ret = config->clk_enable_func(dev, data->clk_freq); |
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if (ret) { |
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return ret; |
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} |
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} |
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|
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pl011_runtime_configure_internal(dev, &data->uart_cfg, false); |
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|
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/* Setting transmit and receive interrupt FIFO level */ |
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get_uart(dev)->ifls = FIELD_PREP(PL011_IFLS_TXIFLSEL_M, TXIFLSEL_1_8_FULL) |
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| FIELD_PREP(PL011_IFLS_RXIFLSEL_M, RXIFLSEL_1_2_FULL); |
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|
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/* Enabling the FIFOs */ |
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if (!config->fifo_disable) { |
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pl011_enable_fifo(dev); |
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} |
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} |
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/* initialize all IRQs as masked */ |
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get_uart(dev)->imsc = 0U; |
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get_uart(dev)->icr = PL011_IMSC_MASK_ALL; |
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|
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if (!data->sbsa) { |
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get_uart(dev)->dmacr = 0U; |
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barrier_isync_fence_full(); |
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get_uart(dev)->cr &= ~PL011_CR_SIREN; |
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get_uart(dev)->cr |= PL011_CR_RXE | PL011_CR_TXE; |
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barrier_isync_fence_full(); |
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} |
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#ifdef CONFIG_UART_INTERRUPT_DRIVEN |
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config->irq_config_func(dev); |
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data->sw_call_txdrdy = true; |
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#endif |
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if (!data->sbsa) { |
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pl011_enable(dev); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
#define COMPAT_SPECIFIC_FUNC_NAME(prefix, name) _CONCAT(_CONCAT(prefix, name), _) |
|
|
|
/* |
|
* The first element of compatible is used to determine the type. |
|
* When compatible defines as "ambiq,uart", "arm,pl011", |
|
* this macro expands to pwr_on_ambiq_uart_[n]. |
|
*/ |
|
#define COMPAT_SPECIFIC_PWR_ON_FUNC(n) \ |
|
_CONCAT(COMPAT_SPECIFIC_FUNC_NAME(pwr_on_, DT_INST_STRING_TOKEN_BY_IDX(n, compatible, 0)), \ |
|
n) |
|
|
|
/* |
|
* The first element of compatible is used to determine the type. |
|
* When compatible defines as "ambiq,uart", "arm,pl011", |
|
* this macro expands to clk_enable_ambiq_uart_[n]. |
|
*/ |
|
#define COMPAT_SPECIFIC_CLK_ENABLE_FUNC(n) \ |
|
_CONCAT(COMPAT_SPECIFIC_FUNC_NAME(clk_enable_, \ |
|
DT_INST_STRING_TOKEN_BY_IDX(n, compatible, 0)), n) |
|
|
|
/* |
|
* The first element of compatible is used to determine the type. |
|
* When compatible defines as "ambiq,uart", "arm,pl011", |
|
* this macro expands to AMBIQ_UART_DEFINE(n). |
|
*/ |
|
#define COMPAT_SPECIFIC_DEFINE(n) \ |
|
_CONCAT(DT_INST_STRING_UPPER_TOKEN_BY_IDX(n, compatible, 0), _DEFINE)(n) |
|
|
|
#define COMPAT_SPECIFIC_CLOCK_CTLR_SUBSYS_CELL(n) \ |
|
_CONCAT(DT_INST_STRING_UPPER_TOKEN_BY_IDX(n, compatible, 0), _CLOCK_CTLR_SUBSYS_CELL) |
|
|
|
#if defined(CONFIG_PINCTRL) |
|
#define PINCTRL_DEFINE(n) PINCTRL_DT_INST_DEFINE(n); |
|
#define PINCTRL_INIT(n) .pincfg = PINCTRL_DT_INST_DEV_CONFIG_GET(n), |
|
#else |
|
#define PINCTRL_DEFINE(n) |
|
#define PINCTRL_INIT(n) |
|
#endif /* CONFIG_PINCTRL */ |
|
|
|
#if defined(CONFIG_RESET) |
|
#define RESET_INIT(n) \ |
|
IF_ENABLED(DT_INST_NODE_HAS_PROP(0, resets), (.reset = RESET_DT_SPEC_INST_GET(n),)) |
|
#else |
|
#define RESET_INIT(n) |
|
#endif |
|
|
|
#define CLOCK_INIT(n) \ |
|
COND_CODE_1(DT_NODE_HAS_COMPAT(DT_INST_CLOCKS_CTLR(n), fixed_clock), (), \ |
|
(.clock_dev = DEVICE_DT_GET(DT_INST_CLOCKS_CTLR(n)), \ |
|
.clock_id = (clock_control_subsys_t)DT_INST_CLOCKS_CELL(n, \ |
|
COMPAT_SPECIFIC_CLOCK_CTLR_SUBSYS_CELL(n)),)) |
|
|
|
#define ARM_PL011_DEFINE(n) \ |
|
static inline int pwr_on_arm_pl011_##n(void) \ |
|
{ \ |
|
return 0; \ |
|
} \ |
|
static inline int clk_enable_arm_pl011_##n(const struct device *dev, uint32_t clk) \ |
|
{ \ |
|
return 0; \ |
|
} |
|
|
|
#ifdef CONFIG_UART_INTERRUPT_DRIVEN |
|
void pl011_isr(const struct device *dev) |
|
{ |
|
struct pl011_data *data = dev->data; |
|
|
|
/* Verify if the callback has been registered */ |
|
if (data->irq_cb) { |
|
K_SPINLOCK(&data->irq_cb_lock) { |
|
data->irq_cb(dev, data->irq_cb_data); |
|
} |
|
} |
|
} |
|
#endif /* CONFIG_UART_INTERRUPT_DRIVEN */ |
|
|
|
#ifdef CONFIG_UART_INTERRUPT_DRIVEN |
|
#define PL011_IRQ_CONFIG_FUNC_BODY(n, prop, i) \ |
|
{ \ |
|
IRQ_CONNECT(DT_IRQ_BY_IDX(n, i, irq), \ |
|
DT_IRQ_BY_IDX(n, i, priority), \ |
|
pl011_isr, \ |
|
DEVICE_DT_GET(n), \ |
|
0); \ |
|
irq_enable(DT_IRQ_BY_IDX(n, i, irq)); \ |
|
} |
|
|
|
#define PL011_CONFIG_PORT(n) \ |
|
static void pl011_irq_config_func_##n(const struct device *dev) \ |
|
{ \ |
|
DT_INST_FOREACH_PROP_ELEM(n, interrupt_names, \ |
|
PL011_IRQ_CONFIG_FUNC_BODY) \ |
|
}; \ |
|
\ |
|
static struct pl011_config pl011_cfg_port_##n = { \ |
|
DEVICE_MMIO_ROM_INIT(DT_DRV_INST(n)), \ |
|
CLOCK_INIT(n) \ |
|
PINCTRL_INIT(n) \ |
|
.irq_config_func = pl011_irq_config_func_##n, \ |
|
.fifo_disable = DT_INST_PROP(n, fifo_disable), \ |
|
.clk_enable_func = COMPAT_SPECIFIC_CLK_ENABLE_FUNC(n), \ |
|
.pwr_on_func = COMPAT_SPECIFIC_PWR_ON_FUNC(n), \ |
|
}; |
|
#else |
|
#define PL011_CONFIG_PORT(n) \ |
|
static struct pl011_config pl011_cfg_port_##n = { \ |
|
DEVICE_MMIO_ROM_INIT(DT_DRV_INST(n)), \ |
|
CLOCK_INIT(n) \ |
|
PINCTRL_INIT(n) \ |
|
}; |
|
#endif /* CONFIG_UART_INTERRUPT_DRIVEN */ |
|
|
|
#define PL011_INIT(n) \ |
|
PINCTRL_DEFINE(n) \ |
|
COMPAT_SPECIFIC_DEFINE(n) \ |
|
PL011_CONFIG_PORT(n) \ |
|
\ |
|
static struct pl011_data pl011_data_port_##n = { \ |
|
.uart_cfg = \ |
|
{ \ |
|
.baudrate = DT_INST_PROP(n, current_speed), \ |
|
.parity = UART_CFG_PARITY_NONE, \ |
|
.stop_bits = UART_CFG_STOP_BITS_1, \ |
|
.data_bits = UART_CFG_DATA_BITS_8, \ |
|
.flow_ctrl = DT_INST_PROP(n, hw_flow_control) \ |
|
? UART_CFG_FLOW_CTRL_RTS_CTS \ |
|
: UART_CFG_FLOW_CTRL_NONE, \ |
|
}, \ |
|
.clk_freq = \ |
|
COND_CODE_1(DT_NODE_HAS_COMPAT(DT_INST_CLOCKS_CTLR(n), fixed_clock), \ |
|
(DT_INST_PROP_BY_PHANDLE(n, clocks, clock_frequency)), (0)), \ |
|
}; \ |
|
\ |
|
DEVICE_DT_INST_DEFINE(n, pl011_init, PM_INST_GET(n), &pl011_data_port_##n, \ |
|
&pl011_cfg_port_##n, PRE_KERNEL_1, CONFIG_SERIAL_INIT_PRIORITY, \ |
|
&pl011_driver_api); |
|
|
|
DT_INST_FOREACH_STATUS_OKAY(PL011_INIT) |
|
|
|
#ifdef CONFIG_UART_PL011_SBSA |
|
|
|
#undef DT_DRV_COMPAT |
|
#define DT_DRV_COMPAT SBSA_COMPAT |
|
|
|
#ifdef CONFIG_UART_INTERRUPT_DRIVEN |
|
#define PL011_SBSA_CONFIG_PORT(n) \ |
|
static void pl011_irq_config_func_sbsa_##n(const struct device *dev) \ |
|
{ \ |
|
DT_INST_FOREACH_PROP_ELEM(n, interrupt_names, \ |
|
PL011_IRQ_CONFIG_FUNC_BODY) \ |
|
}; \ |
|
\ |
|
static struct pl011_config pl011_cfg_sbsa_##n = { \ |
|
DEVICE_MMIO_ROM_INIT(DT_DRV_INST(n)), \ |
|
.irq_config_func = pl011_irq_config_func_sbsa_##n, \ |
|
}; |
|
#else |
|
#define PL011_SBSA_CONFIG_PORT(n) \ |
|
static struct pl011_config pl011_cfg_sbsa_##n = { \ |
|
DEVICE_MMIO_ROM_INIT(DT_DRV_INST(n)), \ |
|
}; |
|
#endif |
|
|
|
#define PL011_SBSA_INIT(n) \ |
|
PL011_SBSA_CONFIG_PORT(n) \ |
|
\ |
|
static struct pl011_data pl011_data_sbsa_##n = { \ |
|
.sbsa = true, \ |
|
}; \ |
|
\ |
|
DEVICE_DT_INST_DEFINE(n, pl011_init, \ |
|
NULL, \ |
|
&pl011_data_sbsa_##n, \ |
|
&pl011_cfg_sbsa_##n, \ |
|
PRE_KERNEL_1, \ |
|
CONFIG_SERIAL_INIT_PRIORITY, \ |
|
&pl011_driver_api); |
|
|
|
DT_INST_FOREACH_STATUS_OKAY(PL011_SBSA_INIT) |
|
|
|
#endif /* CONFIG_UART_PL011_SBSA */
|
|
|