summaryrefslogtreecommitdiff
path: root/src/soc
diff options
context:
space:
mode:
authorJulien Viard de Galbert <jviarddegalbert@online.net>2018-02-20 11:45:48 +0100
committerMartin Roth <martinroth@google.com>2018-02-21 16:09:06 +0000
commit235daa4bf6b6467b5df675dcfe5041b7f62eeae3 (patch)
tree074bc4b58e2da4c7f6fb43c5e7613b08861d5d33 /src/soc
parentfa650f5e8c7cd81138b60d09d4a41b5454f03cc1 (diff)
downloadcoreboot-235daa4bf6b6467b5df675dcfe5041b7f62eeae3.tar.xz
driver/uart: Introduce a way for mainboard to override the baudrate
The rationale is to allow the mainboard to override the default baudrate for instance by sampling GPIOs at boot. A new configuration option is available for mainboards to select this behaviour. It will then have to define the function get_uart_baudrate to return the computed baudrate. Change-Id: I970ee788bf90b9e1a8c6ccdc5eee8029d9af0ecc Signed-off-by: Julien Viard de Galbert <jviarddegalbert@online.net> Reviewed-on: https://review.coreboot.org/23713 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/soc')
-rw-r--r--src/soc/broadcom/cygnus/ns16550.c2
-rw-r--r--src/soc/imgtec/pistachio/uart.c4
-rw-r--r--src/soc/mediatek/mt8173/uart.c4
-rw-r--r--src/soc/nvidia/tegra124/uart.c2
-rw-r--r--src/soc/nvidia/tegra210/uart.c2
-rw-r--r--src/soc/qualcomm/ipq40xx/uart.c2
-rw-r--r--src/soc/samsung/exynos5250/uart.c4
-rw-r--r--src/soc/samsung/exynos5420/uart.c4
8 files changed, 12 insertions, 12 deletions
diff --git a/src/soc/broadcom/cygnus/ns16550.c b/src/soc/broadcom/cygnus/ns16550.c
index e7008274f6..68c4715cb3 100644
--- a/src/soc/broadcom/cygnus/ns16550.c
+++ b/src/soc/broadcom/cygnus/ns16550.c
@@ -120,7 +120,7 @@ void uart_fill_lb(void *data)
struct lb_serial serial;
serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED;
serial.baseaddr = (uintptr_t)regs;
- serial.baud = CONFIG_TTYS0_BAUD;
+ serial.baud = get_uart_baudrate();
serial.regwidth = 4;
lb_add_serial(&serial, data);
diff --git a/src/soc/imgtec/pistachio/uart.c b/src/soc/imgtec/pistachio/uart.c
index df1a5ace04..f610f6a05d 100644
--- a/src/soc/imgtec/pistachio/uart.c
+++ b/src/soc/imgtec/pistachio/uart.c
@@ -124,7 +124,7 @@ void uart_init(int idx)
return;
unsigned int div;
- div = uart_baudrate_divisor(CONFIG_TTYS0_BAUD,
+ div = uart_baudrate_divisor(get_uart_baudrate(),
uart_platform_refclk(), 16);
uart8250_mem_init(base, div);
}
@@ -150,7 +150,7 @@ void uart_fill_lb(void *data)
struct lb_serial serial;
serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED;
serial.baseaddr = CONFIG_CONSOLE_SERIAL_UART_ADDRESS;
- serial.baud = CONFIG_TTYS0_BAUD;
+ serial.baud = get_uart_baudrate();
serial.regwidth = 1 << UART_SHIFT;
lb_add_serial(&serial, data);
diff --git a/src/soc/mediatek/mt8173/uart.c b/src/soc/mediatek/mt8173/uart.c
index 36a279fa65..93625c4bfb 100644
--- a/src/soc/mediatek/mt8173/uart.c
+++ b/src/soc/mediatek/mt8173/uart.c
@@ -87,7 +87,7 @@ static void mtk_uart_init(void)
{
/* Use a hardcoded divisor for now. */
const unsigned uartclk = 26 * MHz;
- const unsigned baudrate = CONFIG_TTYS0_BAUD;
+ const unsigned baudrate = get_uart_baudrate();
const uint8_t line_config = UART8250_LCR_WLS_8; /* 8n1 */
unsigned highspeed, quot, divisor, remainder;
@@ -177,7 +177,7 @@ void uart_fill_lb(void *data)
struct lb_serial serial;
serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED;
serial.baseaddr = UART0_BASE;
- serial.baud = CONFIG_TTYS0_BAUD;
+ serial.baud = get_uart_baudrate();
serial.regwidth = 4;
lb_add_serial(&serial, data);
diff --git a/src/soc/nvidia/tegra124/uart.c b/src/soc/nvidia/tegra124/uart.c
index 0d5233788d..5cb8112d81 100644
--- a/src/soc/nvidia/tegra124/uart.c
+++ b/src/soc/nvidia/tegra124/uart.c
@@ -136,7 +136,7 @@ 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 = CONFIG_TTYS0_BAUD;
+ serial.baud = get_uart_baudrate();
serial.regwidth = 4;
lb_add_serial(&serial, data);
diff --git a/src/soc/nvidia/tegra210/uart.c b/src/soc/nvidia/tegra210/uart.c
index 1c52687491..97dc740ebf 100644
--- a/src/soc/nvidia/tegra210/uart.c
+++ b/src/soc/nvidia/tegra210/uart.c
@@ -123,7 +123,7 @@ void uart_fill_lb(void *data)
struct lb_serial serial;
serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED;
serial.baseaddr = CONFIG_CONSOLE_SERIAL_TEGRA210_UART_ADDRESS;
- serial.baud = CONFIG_TTYS0_BAUD;
+ serial.baud = get_uart_baudrate();
serial.regwidth = 4;
lb_add_serial(&serial, data);
diff --git a/src/soc/qualcomm/ipq40xx/uart.c b/src/soc/qualcomm/ipq40xx/uart.c
index 671a6d1281..4b0bffd216 100644
--- a/src/soc/qualcomm/ipq40xx/uart.c
+++ b/src/soc/qualcomm/ipq40xx/uart.c
@@ -297,7 +297,7 @@ void uart_fill_lb(void *data)
serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED;
serial.baseaddr = (uint32_t)UART1_DM_BASE;
- serial.baud = CONFIG_TTYS0_BAUD;
+ serial.baud = get_uart_baudrate();
serial.regwidth = 1;
lb_add_serial(&serial, data);
diff --git a/src/soc/samsung/exynos5250/uart.c b/src/soc/samsung/exynos5250/uart.c
index 7ad6cbe6d9..78c72804c9 100644
--- a/src/soc/samsung/exynos5250/uart.c
+++ b/src/soc/samsung/exynos5250/uart.c
@@ -61,7 +61,7 @@ static void serial_setbrg_dev(struct s5p_uart *uart)
// All UARTs share the same clock.
uclk = clock_get_periph_rate(PERIPH_ID_UART3);
- val = uclk / CONFIG_TTYS0_BAUD;
+ val = uclk / get_uart_baudrate();
write32(&uart->ubrdiv, val / 16 - 1);
@@ -191,7 +191,7 @@ 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 = CONFIG_TTYS0_BAUD;
+ serial.baud = get_uart_baudrate();
serial.regwidth = 4;
lb_add_serial(&serial, data);
diff --git a/src/soc/samsung/exynos5420/uart.c b/src/soc/samsung/exynos5420/uart.c
index a38be07d13..146151ee5b 100644
--- a/src/soc/samsung/exynos5420/uart.c
+++ b/src/soc/samsung/exynos5420/uart.c
@@ -61,7 +61,7 @@ static void serial_setbrg_dev(struct s5p_uart *uart)
// All UARTs share the same clock.
uclk = clock_get_periph_rate(PERIPH_ID_UART3);
- val = uclk / CONFIG_TTYS0_BAUD;
+ val = uclk / get_uart_baudrate();
write32(&uart->ubrdiv, val / 16 - 1);
@@ -182,7 +182,7 @@ 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 = CONFIG_TTYS0_BAUD;
+ serial.baud = get_uart_baudrate();
serial.regwidth = 4;
serial.input_hertz = uart_platform_refclk();
serial.uart_pci_addr = 0;