diff options
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/arm_dcc.c | 2 | ||||
| -rw-r--r-- | drivers/serial/serial-uclass.c | 3 | ||||
| -rw-r--r-- | drivers/serial/serial_efi.c | 11 | ||||
| -rw-r--r-- | drivers/serial/serial_lpuart.c | 7 | ||||
| -rw-r--r-- | drivers/serial/serial_mvebu_a3700.c | 14 |
5 files changed, 27 insertions, 10 deletions
diff --git a/drivers/serial/arm_dcc.c b/drivers/serial/arm_dcc.c index dfcb6fd698..a402a123b6 100644 --- a/drivers/serial/arm_dcc.c +++ b/drivers/serial/arm_dcc.c @@ -51,7 +51,7 @@ #define status_dcc(x) \ __asm__ volatile ("mrc p14, 0, %0, c14, c0, 0\n" : "=r" (x)) -#elif defined(CONFIG_CPU_ARMV8) +#elif defined(CONFIG_ARM64) /* * ARMV8 */ diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c index 30d44214d7..96a1cb65ba 100644 --- a/drivers/serial/serial-uclass.c +++ b/drivers/serial/serial-uclass.c @@ -104,7 +104,8 @@ static void serial_find_console_or_panic(void) } } } - if (!SPL_BUILD || !CONFIG_IS_ENABLED(OF_CONTROL) || !blob) { + if (!IS_ENABLED(CONFIG_SPL_BUILD) || !CONFIG_IS_ENABLED(OF_CONTROL) || + !blob) { /* * Try to use CONFIG_CONS_INDEX if available (it is numbered * from 1!). diff --git a/drivers/serial/serial_efi.c b/drivers/serial/serial_efi.c index 33ddbd6080..0067576389 100644 --- a/drivers/serial/serial_efi.c +++ b/drivers/serial/serial_efi.c @@ -24,6 +24,9 @@ struct serial_efi_priv { bool have_key; }; +/* Convert a lower-case character to its ctrl-char equivalent */ +#define CTL_CH(c) ((c) - 'a' + 1) + int serial_efi_setbrg(struct udevice *dev, int baudrate) { return 0; @@ -49,6 +52,7 @@ static int serial_efi_get_key(struct serial_efi_priv *priv) static int serial_efi_getc(struct udevice *dev) { struct serial_efi_priv *priv = dev_get_priv(dev); + char conv_scan[10] = {0, 'p', 'n', 'f', 'b', 'a', 'e', 0, 8}; int ret, ch; ret = serial_efi_get_key(priv); @@ -63,8 +67,11 @@ static int serial_efi_getc(struct udevice *dev) * key scan code of 8. Handle this so that backspace works correctly * in the U-Boot command line. */ - if (!ch && priv->key.scan_code == 8) - ch = 8; + if (!ch && priv->key.scan_code < sizeof(conv_scan)) { + ch = conv_scan[priv->key.scan_code]; + if (ch >= 'a') + ch -= 'a' - 1; + } debug(" [%x %x %x] ", ch, priv->key.unicode_char, priv->key.scan_code); return ch; diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c index 3c9a69598a..ca49ef7372 100644 --- a/drivers/serial/serial_lpuart.c +++ b/drivers/serial/serial_lpuart.c @@ -5,6 +5,7 @@ */ #include <common.h> +#include <clock_legacy.h> #include <clk.h> #include <dm.h> #include <fsl_lpuart.h> @@ -102,13 +103,9 @@ static void lpuart_write32(u32 flags, u32 *addr, u32 val) } -#ifndef CONFIG_SYS_CLK_FREQ -#define CONFIG_SYS_CLK_FREQ 0 -#endif - u32 __weak get_lpuart_clk(void) { - return CONFIG_SYS_CLK_FREQ; + return get_board_sys_clk(); } #if CONFIG_IS_ENABLED(CLK) diff --git a/drivers/serial/serial_mvebu_a3700.c b/drivers/serial/serial_mvebu_a3700.c index 6bca8e4b7e..3e673bde57 100644 --- a/drivers/serial/serial_mvebu_a3700.c +++ b/drivers/serial/serial_mvebu_a3700.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2016 Stefan Roese <sr@denx.de> + * Copyright (C) 2021 Pali Rohár <pali@kernel.org> */ #include <common.h> @@ -9,6 +10,7 @@ #include <serial.h> #include <asm/io.h> #include <asm/arch/cpu.h> +#include <mach/soc.h> struct mvebu_plat { void __iomem *base; @@ -213,6 +215,7 @@ static int mvebu_serial_remove(struct udevice *dev) u32 new_oversampling; u32 oversampling; u32 d1, d2; + u32 nb_rst; /* * Switch UART base clock back to XTAL because older Linux kernel @@ -260,12 +263,22 @@ static int mvebu_serial_remove(struct udevice *dev) return 0; } + /* wait until TX empty */ while (!(readl(base + UART_STATUS_REG) & UART_STATUS_TX_EMPTY)) ; + /* external reset of UART via North Bridge Peripheral */ + nb_rst = readl(MVEBU_REGISTER(0x12400)); + writel(nb_rst & ~BIT(3), MVEBU_REGISTER(0x12400)); + writel(nb_rst | BIT(3), MVEBU_REGISTER(0x12400)); + + /* set baudrate and oversampling */ writel(new_divider, base + UART_BAUD_REG); writel(new_oversampling, base + UART_POSSR_REG); + /* No Parity, 1 Stop */ + writel(0, base + UART_CTRL_REG); + return 0; } @@ -305,7 +318,6 @@ U_BOOT_DRIVER(serial_mvebu) = { #ifdef CONFIG_DEBUG_MVEBU_A3700_UART #include <debug_uart.h> -#include <mach/soc.h> static inline void _debug_uart_init(void) { |