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Diffstat (limited to 'payloads/libpayload/drivers/serial/rk_serial.c')
-rw-r--r--payloads/libpayload/drivers/serial/rk_serial.c115
1 files changed, 0 insertions, 115 deletions
diff --git a/payloads/libpayload/drivers/serial/rk_serial.c b/payloads/libpayload/drivers/serial/rk_serial.c
deleted file mode 100644
index 91a6e1bde9..0000000000
--- a/payloads/libpayload/drivers/serial/rk_serial.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 Rockchip Electronics
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#include <libpayload-config.h>
-#include <libpayload.h>
-struct rk_uart {
- union {
- u32 uart_thr; /* Transmit holding register. */
- u32 uart_rbr; /* Receive buffer register. */
- u32 uart_dll; /* Divisor latch lsb. */
- };
- union {
- u32 uart_ier; /* Interrupt enable register. */
- u32 uart_dlh; /* Divisor latch msb. */
- };
- union {
- uint32_t uart_iir; /* Interrupt identification register. */
- uint32_t uart_fcr; /* FIFO control register. */
- };
- u32 uart_lcr;
- u32 uart_mcr;
- u32 uart_lsr;
- u32 uart_msr;
- u32 uart_scr;
- u32 reserved1[(0x30 - 0x20) / 4];
- u32 uart_srbr[(0x70 - 0x30) / 4];
- u32 uart_far;
- u32 uart_tfr;
- u32 uart_rfw;
- u32 uart_usr;
- u32 uart_tfl;
- u32 uart_rfl;
- u32 uart_srr;
- u32 uart_srts;
- u32 uart_sbcr;
- u32 uart_sdmam;
- u32 uart_sfe;
- u32 uart_srt;
- u32 uart_stet;
- u32 uart_htx;
- u32 uart_dmasa;
- u32 reserver2[(0xf4 - 0xac) / 4];
- u32 uart_cpr;
- u32 uart_ucv;
- u32 uart_ctr;
-};
-enum {
- UART_LSR_DR = 0x1 << 0, /* Data ready. */
- UART_LSR_OE = 0x1 << 1, /* Overrun. */
- UART_LSR_PE = 0x1 << 2, /* Parity error. */
- UART_LSR_FE = 0x1 << 3, /* Framing error. */
- UART_LSR_BI = 0x1 << 4, /* Break. */
- UART_LSR_THRE = 0x1 << 5, /* Xmit holding register empty. */
- UART_LSR_TEMT = 0x1 << 6, /* Xmitter empty. */
- UART_LSR_ERR = 0x1 << 7 /* Error. */
-};
-
-static struct rk_uart *uart_regs;
-void serial_putchar(unsigned int c)
-{
- while (!(readl(&uart_regs->uart_lsr) & UART_LSR_THRE));
- writel((c & 0xff), &uart_regs->uart_thr);
- if (c == '\n')
- serial_putchar('\r');
-}
-
-int serial_havechar(void)
-{
- uint8_t lsr = readl(&uart_regs->uart_lsr);
- return (lsr & UART_LSR_DR) == UART_LSR_DR;
-}
-
-int serial_getchar(void)
-{
- while (!serial_havechar());
- return readl(&uart_regs->uart_rbr)&0xff;
-}
-
-static struct console_input_driver consin = {
- .havekey = &serial_havechar,
- .getchar = &serial_getchar
-};
-
-static struct console_output_driver consout = {.putchar = &serial_putchar
-};
-
-void serial_init(void)
-{
- if (!lib_sysinfo.serial || !lib_sysinfo.serial->baseaddr)
- return;
-
- uart_regs = (struct rk_uart *)lib_sysinfo.serial->baseaddr;
-}
-
-void serial_console_init(void)
-{
- serial_init();
- console_add_input_driver(&consin);
- console_add_output_driver(&consout);
-}