diff options
Diffstat (limited to 'target/linux/ar7-2.6/patches/500-serial_kludge.patch')
| -rw-r--r-- | target/linux/ar7-2.6/patches/500-serial_kludge.patch | 56 |
1 files changed, 43 insertions, 13 deletions
diff --git a/target/linux/ar7-2.6/patches/500-serial_kludge.patch b/target/linux/ar7-2.6/patches/500-serial_kludge.patch index b6079517d..959c5cfe4 100644 --- a/target/linux/ar7-2.6/patches/500-serial_kludge.patch +++ b/target/linux/ar7-2.6/patches/500-serial_kludge.patch @@ -1,22 +1,52 @@ +diff -Nru linux-2.6.19.2/include/linux/serialP.h linux-ar7/include/linux/serialP.h +--- linux-2.6.19.2/include/linux/serialP.h 2007-01-17 01:24:01.000000000 +0700 ++++ linux-ar7/include/linux/serialP.h 2007-03-22 22:36:48.000000000 +0700 +@@ -135,6 +135,9 @@ + * the interrupt line _up_ instead of down, so if we register the IRQ + * while the UART is in that state, we die in an IRQ storm. */ + #define ALPHA_KLUDGE_MCR (UART_MCR_OUT2) ++#elif defined(CONFIG_AR7) ++/* This is how it is set up by bootloader... */ ++#define ALPHA_KLUDGE_MCR (UART_MCR_OUT2 | UART_MCR_OUT1 | UART_MCR_RTS | UART_MCR_DTR) + #else + #define ALPHA_KLUDGE_MCR 0 + #endif +diff -Nru linux-2.6.19.2/include/linux/serial_core.h linux-ar7/include/linux/serial_core.h +--- linux-2.6.19.2/include/linux/serial_core.h 2007-01-11 02:10:37.000000000 +0700 ++++ linux-ar7/include/linux/serial_core.h 2007-03-22 22:50:13.000000000 +0700 +@@ -39,7 +39,8 @@ + #define PORT_RSA 13 + #define PORT_NS16550A 14 + #define PORT_XSCALE 15 +-#define PORT_MAX_8250 15 /* max port ID */ ++#define PORT_AR7 16 ++#define PORT_MAX_8250 16 /* max port ID */ + + /* + * ARM specific type numbers. These are not currently guaranteed diff -Nru linux-2.6.19.2/drivers/serial/8250.c linux-ar7/drivers/serial/8250.c ---- linux-2.6.19.2/drivers/serial/8250.c 2006-12-12 02:32:53.000000000 +0700 -+++ linux-ar7/drivers/serial/8250.c 2007-02-02 14:25:51.000000000 +0700 -@@ -2171,6 +2171,9 @@ - */ - up->mcr_mask = ~ALPHA_KLUDGE_MCR; - up->mcr_force = ALPHA_KLUDGE_MCR; -+#ifdef CONFIG_AR7 -+ up->mcr_force |= UART_MCR_RTS; -+#endif +--- linux-2.6.19.2/drivers/serial/8250.c 2007-01-11 02:10:37.000000000 +0700 ++++ linux-ar7/drivers/serial/8250.c 2007-03-22 22:45:17.000000000 +0700 +@@ -251,6 +251,13 @@ + .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10, + .flags = UART_CAP_FIFO | UART_CAP_UUE, + }, ++ [PORT_AR7] = { ++ .name = "TI-AR7", ++ .fifo_size = 16, ++ .tx_loadsz = 16, ++ .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_00, ++ .flags = UART_CAP_FIFO | UART_CAP_AFE, ++ }, + }; - up->port.ops = &serial8250_pops; - } -@@ -2243,7 +2246,7 @@ + #ifdef CONFIG_SERIAL_8250_AU1X00 +@@ -2243,7 +2250,7 @@ { struct uart_8250_port *up = (struct uart_8250_port *)port; - wait_for_xmitr(up, UART_LSR_THRE); -+ wait_for_xmitr(up, UART_LSR_TEMT); ++ wait_for_xmitr(up, BOTH_EMPTY); serial_out(up, UART_TX, ch); } |