diff options
author | Furquan Shaikh <furquan@chromium.org> | 2017-05-22 14:32:30 -0700 |
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committer | Furquan Shaikh <furquan@google.com> | 2017-05-24 04:43:23 +0200 |
commit | 53bbf87a4c145d6394935f315b06ffc81c939b47 (patch) | |
tree | 1b84cee23366fa73efc6bb5186caff056f679d9f /src/soc/marvell/armada38x/uart.c | |
parent | 12eca76469670d444897e67368a0d0a70787ad52 (diff) |
soc/marvell/armada38x: Remove unused SoC armada38x
No mainboard is actually using this SoC. Remove the code for this SoC
for now.
BUG=b:38430839
Change-Id: Ia35986dffda8bbd76305ef5abab6ae81cc154b0f
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19824
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/marvell/armada38x/uart.c')
-rw-r--r-- | src/soc/marvell/armada38x/uart.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/src/soc/marvell/armada38x/uart.c b/src/soc/marvell/armada38x/uart.c deleted file mode 100644 index c2800d0543..0000000000 --- a/src/soc/marvell/armada38x/uart.c +++ /dev/null @@ -1,152 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2015 Google Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <arch/io.h> -#include <console/uart.h> -#include <console/console.h> -#include <drivers/uart/uart8250reg.h> -#include <boot/coreboot_tables.h> -#include <stdint.h> -#include <assert.h> -#include <soc/common.h> -#include <soc/clock.h> - -struct armada38x_uart { - union { - uint32_t thr; // Transmit holding register. - uint32_t rbr; // Receive buffer register. - uint32_t dll; // Divisor latch lsb. - }; - union { - uint32_t ier; // Interrupt enable register. - uint32_t dlm; // Divisor latch msb. - }; - union { - uint32_t iir; // Interrupt identification register. - uint32_t fcr; // FIFO control register. - }; - uint32_t lcr; // Line control register. - uint32_t mcr; // Modem control register. - uint32_t lsr; // Line status register. - uint32_t msr; // Modem status register. -} __attribute__ ((packed)); - -static void armada38x_uart_tx_flush(struct armada38x_uart *uart_ptr); -static int armada38x_uart_tst_byte(struct armada38x_uart *uart_ptr); - -static void armada38x_uart_init(struct armada38x_uart *uart_ptr) -{ - const uint8_t line_config = UART8250_LCR_WLS_8; - uint16_t divisor = (u16) uart_baudrate_divisor(default_baudrate(), - uart_platform_refclk(), 16); - - armada38x_uart_tx_flush(uart_ptr); - // Disable interrupts. - write8(&uart_ptr->ier, 0); - // Enable access to divisor latches. - write8(&uart_ptr->lcr, UART8250_LCR_DLAB); - // Set the divisor. - write8(&uart_ptr->dll, divisor & 0xff); - write8(&uart_ptr->dlm, (divisor >> 8) & 0xff); - // Hide divisor latches and program line config. - write8(&uart_ptr->lcr, line_config); - // Enable FIFOs, and clear receive and transmit. - write8(&uart_ptr->fcr, UART8250_FCR_FIFO_EN | UART8250_FCR_CLEAR_RCVR | - UART8250_FCR_CLEAR_XMIT); -} - -static void armada38x_uart_tx_byte(struct armada38x_uart *uart_ptr, - unsigned char data) -{ - while (!(read8(&uart_ptr->lsr) & UART8250_LSR_THRE)) - ; - write8(&uart_ptr->thr, data); -} - -static void armada38x_uart_tx_flush(struct armada38x_uart *uart_ptr) -{ - while (!(read8(&uart_ptr->lsr) & UART8250_LSR_TEMT)) - ; -} - -static unsigned char armada38x_uart_rx_byte(struct armada38x_uart *uart_ptr) -{ - if (!armada38x_uart_tst_byte(uart_ptr)) - return 0; - return read8(&uart_ptr->rbr); -} - -static int armada38x_uart_tst_byte(struct armada38x_uart *uart_ptr) -{ - return (read8(&uart_ptr->lsr) & UART8250_LSR_DR) == UART8250_LSR_DR; -} - -unsigned int uart_platform_refclk(void) -{ - return mv_tclk_get(); -} - -uintptr_t uart_platform_base(int idx) -{ - /* Default to UART 0 */ - unsigned int base = CONFIG_CONSOLE_SERIAL_UART_ADDRESS; - - assert((idx >= 0) && (idx < 2)); - base += idx * 0x100; - return base; -} - -void uart_init(int idx) -{ - struct armada38x_uart *uart_ptr = uart_platform_baseptr(idx); - - armada38x_uart_init(uart_ptr); -} - -void uart_tx_byte(int idx, unsigned char data) -{ - struct armada38x_uart *uart_ptr = uart_platform_baseptr(idx); - - armada38x_uart_tx_byte(uart_ptr, data); -} - -void uart_tx_flush(int idx) -{ - struct armada38x_uart *uart_ptr = uart_platform_baseptr(idx); - - armada38x_uart_tx_flush(uart_ptr); -} - -unsigned char uart_rx_byte(int idx) -{ - struct armada38x_uart *uart_ptr = uart_platform_baseptr(idx); - - return armada38x_uart_rx_byte(uart_ptr); -} - -#if ENV_RAMSTAGE -void uart_fill_lb(void *data) -{ - struct lb_serial serial; - - serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED; - serial.baseaddr = uart_platform_base(CONFIG_UART_FOR_CONSOLE); - serial.baud = default_baudrate(); - serial.regwidth = 4; - lb_add_serial(&serial, data); - - lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, data); -} -#endif |