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-rw-r--r--payloads/libpayload/Config.in9
-rw-r--r--payloads/libpayload/configs/defconfig3
-rw-r--r--payloads/libpayload/configs/defconfig-arm3
-rw-r--r--payloads/libpayload/configs/defconfig-mips3
-rw-r--r--payloads/libpayload/drivers/Makefile.inc3
-rw-r--r--payloads/libpayload/drivers/serial/8250_mmio32.c (renamed from payloads/libpayload/drivers/serial/tegra.c)48
-rw-r--r--payloads/libpayload/drivers/serial/rk_serial.c115
7 files changed, 30 insertions, 154 deletions
diff --git a/payloads/libpayload/Config.in b/payloads/libpayload/Config.in
index cb1d52940..2efd5d673 100644
--- a/payloads/libpayload/Config.in
+++ b/payloads/libpayload/Config.in
@@ -199,13 +199,8 @@ config S5P_SERIAL_CONSOLE
depends on SERIAL_CONSOLE
default n
-config TEGRA_SERIAL_CONSOLE
- bool "Tegra SOC compatible serial port driver"
- depends on SERIAL_CONSOLE
- default n
-
-config RK_SERIAL_CONSOLE
- bool "Rockchip SOC serial port driver"
+config 8250_MMIO32_SERIAL_CONSOLE
+ bool "Memory-mapped 8250-compatible serial port driver with 32-bit regs"
depends on SERIAL_CONSOLE
default n
diff --git a/payloads/libpayload/configs/defconfig b/payloads/libpayload/configs/defconfig
index f5e13d553..556b6198b 100644
--- a/payloads/libpayload/configs/defconfig
+++ b/payloads/libpayload/configs/defconfig
@@ -41,8 +41,7 @@ CONFIG_LP_CBMEM_CONSOLE=y
CONFIG_LP_SERIAL_CONSOLE=y
CONFIG_LP_8250_SERIAL_CONSOLE=y
# CONFIG_LP_S5P_SERIAL_CONSOLE is not set
-# CONFIG_LP_TEGRA_SERIAL_CONSOLE is not set
-# CONFIG_LP_RK_SERIAL_CONSOLE is not set
+# CONFIG_LP_8250_MMIO32_SERIAL_CONSOLE is not set
# CONFIG_LP_IPQ806X_SERIAL_CONSOLE is not set
# CONFIG_LP_PL011_SERIAL_CONSOLE is not set
CONFIG_LP_SERIAL_IOBASE=0x3f8
diff --git a/payloads/libpayload/configs/defconfig-arm b/payloads/libpayload/configs/defconfig-arm
index ea467ecd4..ff2225f3d 100644
--- a/payloads/libpayload/configs/defconfig-arm
+++ b/payloads/libpayload/configs/defconfig-arm
@@ -40,8 +40,7 @@ CONFIG_LP_CBMEM_CONSOLE=y
CONFIG_LP_SERIAL_CONSOLE=y
# CONFIG_LP_8250_SERIAL_CONSOLE is not set
# CONFIG_LP_S5P_SERIAL_CONSOLE is not set
-# CONFIG_LP_TEGRA_SERIAL_CONSOLE is not set
-# CONFIG_LP_RK_SERIAL_CONSOLE is not set
+# CONFIG_LP_8250_MMIO32_SERIAL_CONSOLE is not set
# CONFIG_LP_IPQ806X_SERIAL_CONSOLE is not set
# CONFIG_LP_SERIAL_SET_SPEED is not set
# CONFIG_LP_SERIAL_ACS_FALLBACK is not set
diff --git a/payloads/libpayload/configs/defconfig-mips b/payloads/libpayload/configs/defconfig-mips
index 0af1a9170..76b847401 100644
--- a/payloads/libpayload/configs/defconfig-mips
+++ b/payloads/libpayload/configs/defconfig-mips
@@ -40,8 +40,7 @@ CONFIG_LP_CBMEM_CONSOLE=y
CONFIG_LP_SERIAL_CONSOLE=y
CONFIG_LP_8250_SERIAL_CONSOLE=y
# CONFIG_LP_S5P_SERIAL_CONSOLE is not set
-# CONFIG_LP_TEGRA_SERIAL_CONSOLE is not set
-# CONFIG_LP_RK_SERIAL_CONSOLE is not set
+# CONFIG_LP_8250_MMIO32_SERIAL_CONSOLE is not set
# CONFIG_LP_IPQ806X_SERIAL_CONSOLE is not set
# CONFIG_LP_PL011_SERIAL_CONSOLE is not set
# CONFIG_LP_SERIAL_SET_SPEED is not set
diff --git a/payloads/libpayload/drivers/Makefile.inc b/payloads/libpayload/drivers/Makefile.inc
index 6dc1403f2..f3b147de3 100644
--- a/payloads/libpayload/drivers/Makefile.inc
+++ b/payloads/libpayload/drivers/Makefile.inc
@@ -35,9 +35,8 @@ libc-$(CONFIG_LP_SPEAKER) += speaker.c
libc-$(CONFIG_LP_8250_SERIAL_CONSOLE) += serial/8250.c
libc-$(CONFIG_LP_S5P_SERIAL_CONSOLE) += serial/s5p.c
-libc-$(CONFIG_LP_TEGRA_SERIAL_CONSOLE) += serial/tegra.c
+libc-$(CONFIG_LP_8250_MMIO32_SERIAL_CONSOLE) += serial/8250_mmio32.c
libc-$(CONFIG_LP_IPQ806X_SERIAL_CONSOLE) += serial/ipq806x.c
-libc-$(CONFIG_LP_RK_SERIAL_CONSOLE) += serial/rk_serial.c
libc-$(CONFIG_LP_BG4CD_SERIAL_CONSOLE) += serial/bg4cd.c
libc-$(CONFIG_LP_PC_KEYBOARD) += keyboard.c
diff --git a/payloads/libpayload/drivers/serial/tegra.c b/payloads/libpayload/drivers/serial/8250_mmio32.c
index a3dad2b09..285f7f6da 100644
--- a/payloads/libpayload/drivers/serial/tegra.c
+++ b/payloads/libpayload/drivers/serial/8250_mmio32.c
@@ -28,7 +28,7 @@
#include <libpayload.h>
#include <stdint.h>
-struct tegra_uart {
+struct mmio32_uart {
union {
uint32_t thr; // Transmit holding register.
uint32_t rbr; // Receive buffer register.
@@ -49,47 +49,47 @@ struct tegra_uart {
} __attribute__ ((packed));
enum {
- TEGRA_UART_LSR_DR = 0x1 << 0, // Data ready.
- TEGRA_UART_LSR_OE = 0x1 << 1, // Overrun.
- TEGRA_UART_LSR_PE = 0x1 << 2, // Parity error.
- TEGRA_UART_LSR_FE = 0x1 << 3, // Framing error.
- TEGRA_UART_LSR_BI = 0x1 << 4, // Break.
- TEGRA_UART_LSR_THRE = 0x1 << 5, // Xmit holding register empty.
- TEGRA_UART_LSR_TEMT = 0x1 << 6, // Xmitter empty.
- TEGRA_UART_LSR_ERR = 0x1 << 7 // Error.
+ LSR_DR = 0x1 << 0, // Data ready.
+ LSR_OE = 0x1 << 1, // Overrun.
+ LSR_PE = 0x1 << 2, // Parity error.
+ LSR_FE = 0x1 << 3, // Framing error.
+ LSR_BI = 0x1 << 4, // Break.
+ LSR_THRE = 0x1 << 5, // Xmit holding register empty.
+ LSR_TEMT = 0x1 << 6, // Xmitter empty.
+ LSR_ERR = 0x1 << 7 // Error.
};
-static struct tegra_uart *uart_regs;
+static struct mmio32_uart *uart = NULL;
void serial_putchar(unsigned int c)
{
- while (!(readb(&uart_regs->lsr) & TEGRA_UART_LSR_THRE));
- writeb(c, &uart_regs->thr);
+ while (!(readl(&uart->lsr) & LSR_THRE))
+ /* wait for transmit register to clear */;
+
+ writel((char)c, &uart->thr);
if (c == '\n')
serial_putchar('\r');
}
int serial_havechar(void)
{
- uint8_t lsr = readb(&uart_regs->lsr);
- return (lsr & TEGRA_UART_LSR_DR) == TEGRA_UART_LSR_DR;
+ uint8_t lsr = readl(&uart->lsr);
+ return (lsr & LSR_DR) == LSR_DR;
}
int serial_getchar(void)
{
while (!serial_havechar())
- {;}
+ /* wait for character */;
- return readb(&uart_regs->rbr);
+ return readl(&uart->rbr);
}
-static struct console_output_driver tegra_serial_output =
-{
+static struct console_output_driver mmio32_serial_output = {
.putchar = &serial_putchar
};
-static struct console_input_driver tegra_serial_input =
-{
+static struct console_input_driver mmio32_serial_input = {
.havekey = &serial_havechar,
.getchar = &serial_getchar
};
@@ -99,15 +99,15 @@ void serial_init(void)
if (!lib_sysinfo.serial || !lib_sysinfo.serial->baseaddr)
return;
- uart_regs = (struct tegra_uart *)(uintptr_t)lib_sysinfo.serial->baseaddr;
+ uart = (struct mmio32_uart *)(uintptr_t)lib_sysinfo.serial->baseaddr;
}
void serial_console_init(void)
{
serial_init();
- if (uart_regs) {
- console_add_output_driver(&tegra_serial_output);
- console_add_input_driver(&tegra_serial_input);
+ if (uart) {
+ console_add_output_driver(&mmio32_serial_output);
+ console_add_input_driver(&mmio32_serial_input);
}
}
diff --git a/payloads/libpayload/drivers/serial/rk_serial.c b/payloads/libpayload/drivers/serial/rk_serial.c
deleted file mode 100644
index 91a6e1bde..000000000
--- 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);
-}