diff options
| author | Felix Brack <fb@ltec.ch> | 2018-12-03 15:12:25 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-12-07 08:13:49 -0500 |
| commit | 5eca073ae6b105bd010b5381984f591c1d0b2c87 (patch) | |
| tree | ec6bc870cbd708073035b535d04550b576c2a2d1 /drivers/serial | |
| parent | f0d964f4dbc1b58052fd8f1b91e0280007b16d8a (diff) | |
serial: omap: Add code for early debugging
This patch adds code missing when CONFIG_DEBUG_UART_OMAP is enabled as
early debugging UART. The code is basically copied from the ns16550
driver.
Signed-off-by: Felix Brack <fb@ltec.ch>
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/serial_omap.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/drivers/serial/serial_omap.c b/drivers/serial/serial_omap.c index ee6ad9c9e5..a31d73766d 100644 --- a/drivers/serial/serial_omap.c +++ b/drivers/serial/serial_omap.c @@ -7,7 +7,6 @@ */ #include <common.h> -#include <debug_uart.h> #include <dm.h> #include <dt-structs.h> #include <ns16550.h> @@ -20,6 +19,47 @@ #ifdef CONFIG_DEBUG_UART_OMAP +#ifndef CONFIG_SYS_NS16550_IER +#define CONFIG_SYS_NS16550_IER 0x00 +#endif + +#define UART_MCRVAL 0x00 +#define UART_LCRVAL UART_LCR_8N1 + +static inline void serial_out_shift(void *addr, int shift, int value) +{ +#ifdef CONFIG_SYS_NS16550_PORT_MAPPED + outb(value, (ulong)addr); +#elif defined(CONFIG_SYS_NS16550_MEM32) && defined(CONFIG_SYS_LITTLE_ENDIAN) + out_le32(addr, value); +#elif defined(CONFIG_SYS_NS16550_MEM32) && defined(CONFIG_SYS_BIG_ENDIAN) + out_be32(addr, value); +#elif defined(CONFIG_SYS_NS16550_MEM32) + writel(value, addr); +#elif defined(CONFIG_SYS_BIG_ENDIAN) + writeb(value, addr + (1 << shift) - 1); +#else + writeb(value, addr); +#endif +} + +static inline int serial_in_shift(void *addr, int shift) +{ +#ifdef CONFIG_SYS_NS16550_PORT_MAPPED + return inb((ulong)addr); +#elif defined(CONFIG_SYS_NS16550_MEM32) && defined(CONFIG_SYS_LITTLE_ENDIAN) + return in_le32(addr); +#elif defined(CONFIG_SYS_NS16550_MEM32) && defined(CONFIG_SYS_BIG_ENDIAN) + return in_be32(addr); +#elif defined(CONFIG_SYS_NS16550_MEM32) + return readl(addr); +#elif defined(CONFIG_SYS_BIG_ENDIAN) + return readb(addr + (1 << shift) - 1); +#else + return readb(addr); +#endif +} + #include <debug_uart.h> static inline void _debug_uart_init(void) |