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serial: omap: Add code for early debugging

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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>
This commit is contained in:
Felix Brack 2018-12-03 15:12:25 +01:00 committed by Tom Rini
parent f0d964f4db
commit 5eca073ae6
1 changed files with 41 additions and 1 deletions
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42
drivers/serial/serial_omap.c
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@ -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)