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authorFelix Brack <fb@ltec.ch>2018-12-03 15:12:25 +0100
committerTom Rini <trini@konsulko.com>2018-12-07 08:13:49 -0500
commit5eca073ae6b105bd010b5381984f591c1d0b2c87 (patch)
treeec6bc870cbd708073035b535d04550b576c2a2d1 /drivers
parentf0d964f4dbc1b58052fd8f1b91e0280007b16d8a (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')
-rw-r--r--drivers/serial/serial_omap.c42
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)