diff options
Diffstat (limited to 'meta-openbmc-mods/meta-ast2600/recipes-kernel/linux/linux-aspeed/0003-serial-8250_aspeed-Make-port-type-fixed.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-ast2600/recipes-kernel/linux/linux-aspeed/0003-serial-8250_aspeed-Make-port-type-fixed.patch | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-ast2600/recipes-kernel/linux/linux-aspeed/0003-serial-8250_aspeed-Make-port-type-fixed.patch b/meta-openbmc-mods/meta-ast2600/recipes-kernel/linux/linux-aspeed/0003-serial-8250_aspeed-Make-port-type-fixed.patch new file mode 100644 index 000000000..4a0e221b6 --- /dev/null +++ b/meta-openbmc-mods/meta-ast2600/recipes-kernel/linux/linux-aspeed/0003-serial-8250_aspeed-Make-port-type-fixed.patch @@ -0,0 +1,57 @@ +From a7a8bf2f7df17f69a407abe21a14b3f0f2c7338c Mon Sep 17 00:00:00 2001 +From: Chia-Wei Wang <chiawei_wang@aspeedtech.com> +Date: Mon, 31 May 2021 15:39:59 +0800 +Subject: [PATCH] serial/8250_aspeed: Make port type fixed + +Make the UART port type fixed to 16550A to +avoid redundant probing. + +Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com> +Change-Id: Id179725b1cd475cd52c18c43b6c312dcd912fc20 +--- + drivers/tty/serial/8250/8250_aspeed.c | 14 +++++++------- + 1 file changed, 7 insertions(+), 7 deletions(-) + +diff --git a/drivers/tty/serial/8250/8250_aspeed.c b/drivers/tty/serial/8250/8250_aspeed.c +index fc14c86d3761..bb3955bb8c24 100644 +--- a/drivers/tty/serial/8250/8250_aspeed.c ++++ b/drivers/tty/serial/8250/8250_aspeed.c +@@ -25,12 +25,12 @@ + + /* offsets for the aspeed virtual uart registers */ + #define VUART_GCRA 0x20 +-#define VUART_GCRA_VUART_EN BIT(0) +-#define VUART_GCRA_SIRQ_POLARITY BIT(1) +-#define VUART_GCRA_DISABLE_HOST_TX_DISCARD BIT(5) ++#define VUART_GCRA_VUART_EN BIT(0) ++#define VUART_GCRA_SIRQ_POLARITY BIT(1) ++#define VUART_GCRA_DISABLE_HOST_TX_DISCARD BIT(5) + #define VUART_GCRB 0x24 +-#define VUART_GCRB_HOST_SIRQ_MASK GENMASK(7, 4) +-#define VUART_GCRB_HOST_SIRQ_SHIFT 4 ++#define VUART_GCRB_HOST_SIRQ_MASK GENMASK(7, 4) ++#define VUART_GCRB_HOST_SIRQ_SHIFT 4 + #define VUART_ADDRL 0x28 + #define VUART_ADDRH 0x2c + +@@ -429,7 +429,7 @@ static int ast8250_probe(struct platform_device *pdev) + + spin_lock_init(&port->lock); + port->dev = dev; +- port->type = PORT_16550; ++ port->type = PORT_16550A; + port->irq = irq; + port->line = of_alias_get_id(dev->of_node, "serial"); + port->handle_irq = ast8250_handle_irq; +@@ -439,7 +439,7 @@ static int ast8250_probe(struct platform_device *pdev) + port->uartclk = clk_get_rate(data->clk); + port->regshift = 2; + port->iotype = UPIO_MEM32; +- port->flags = UPF_FIXED_PORT | UPF_SHARE_IRQ; ++ port->flags = UPF_FIXED_TYPE | UPF_FIXED_PORT | UPF_SHARE_IRQ; + port->startup = ast8250_startup; + port->shutdown = ast8250_shutdown; + port->private_data = data; +-- +2.17.1 + |