/** * ipq806x_uart_init - initializes UART * * Initializes clocks, GPIO and UART controller. */ void uart_init(int idx) { /* Note int idx isn't used in this driver. */ void *dm_base; void *gsbi_base; dm_base = uart_board_param.uart_dm_base; if (read32(MSM_BOOT_UART_DM_CSR(dm_base)) == UART_DM_CLK_RX_TX_BIT_RATE) return; /* UART must have been already initialized. */ gsbi_base = uart_board_param.uart_gsbi_base; ipq_configure_gpio(uart_board_param.dbg_uart_gpio, NO_OF_DBG_UART_GPIOS); /* Configure the uart clock */ uart_clock_config(uart_board_param.uart_gsbi, uart_board_param.mnd_value.m_value, uart_board_param.mnd_value.n_value, uart_board_param.mnd_value.d_value, 0); write32(GSBI_CTRL_REG(gsbi_base), GSBI_PROTOCOL_CODE_I2C_UART << GSBI_CTRL_REG_PROTOCOL_CODE_S); write32(MSM_BOOT_UART_DM_CSR(dm_base), UART_DM_CLK_RX_TX_BIT_RATE); /* Intialize UART_DM */ msm_boot_uart_dm_init(dm_base); }
static void configure_uart_dm(uart_cfg_t *uart_cfg) { ipq_configure_gpio(uart_cfg->dbg_uart_gpio, NO_OF_DBG_UART_GPIOS); uart_clock_config(uart_cfg->base, uart_cfg->uart_mnd_value.m_value, uart_cfg->uart_mnd_value.n_value, uart_cfg->uart_mnd_value.d_value, gboard_param->clk_dummy); writel(GSBI_PROTOCOL_CODE_I2C_UART << GSBI_CTRL_REG_PROTOCOL_CODE_S, GSBI_CTRL_REG(uart_cfg->gsbi_base)); writel(UART_DM_CLK_RX_TX_BIT_RATE, MSM_BOOT_UART_DM_CSR(uart_cfg->uart_dm_base)); /* Intialize UART_DM */ msm_boot_uart_dm_init(uart_cfg->uart_dm_base); }
/** * @brief ipq40xx_uart_init - initializes UART * * Initializes clocks, GPIO and UART controller. */ void uart_init(int idx) { /* Note int idx isn't used in this driver. */ void *dm_base; dm_base = uart_board_param.uart_dm_base; if (read32(MSM_BOOT_UART_DM_CSR(dm_base)) == UART_DM_CLK_RX_TX_BIT_RATE) return; /* UART must have been already initialized. */ ipq_configure_gpio(uart_board_param.dbg_uart_gpio, NO_OF_DBG_UART_GPIOS); /* Configure the uart clock */ uart_clock_config(uart_board_param.blsp_uart, uart_board_param.mnd_value.m_value, uart_board_param.mnd_value.n_value, uart_board_param.mnd_value.d_value); write32(MSM_BOOT_UART_DM_CSR(dm_base), UART_DM_CLK_RX_TX_BIT_RATE); /* Initialize UART_DM */ msm_boot_uart_dm_init(dm_base); }