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malta: display "U-boot" on the LCD screen

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Displaying a message on the LCD screen is a simple yet effective way to
show the user that the board has booted successfully.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
This commit is contained in:
Paul Burton 2013-11-08 11:18:51 +00:00 committed by Daniel Schwierzeck
parent baf37f06c5
commit e0ada6319b
2 changed files with 29 additions and 0 deletions
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10
arch/mips/include/asm/malta.h
View File

@ -32,6 +32,16 @@
#define MALTA_MSC01_PCIIO_MAP 0x00000000
#define MALTA_MSC01_UART0_BASE (MALTA_MSC01_PCIIO_BASE + 0x3f8)
#define MALTA_ASCIIWORD 0x1f000410
#define MALTA_ASCIIPOS0 0x1f000418
#define MALTA_ASCIIPOS1 0x1f000420
#define MALTA_ASCIIPOS2 0x1f000428
#define MALTA_ASCIIPOS3 0x1f000430
#define MALTA_ASCIIPOS4 0x1f000438
#define MALTA_ASCIIPOS5 0x1f000440
#define MALTA_ASCIIPOS6 0x1f000448
#define MALTA_ASCIIPOS7 0x1f000450
#define MALTA_RESET_BASE 0x1f000500
#define GORESET 0x42

19
board/imgtec/malta/malta.c
View File

@ -29,6 +29,24 @@ enum sys_con {
SYSCON_MSC01,
};
static void malta_lcd_puts(const char *str)
{
int i;
void *reg = (void *)CKSEG1ADDR(MALTA_ASCIIPOS0);
/* print up to 8 characters of the string */
for (i = 0; i < min(strlen(str), 8); i++) {
__raw_writel(str[i], reg);
reg += MALTA_ASCIIPOS1 - MALTA_ASCIIPOS0;
}
/* fill the rest of the display with spaces */
for (; i < 8; i++) {
__raw_writel(' ', reg);
reg += MALTA_ASCIIPOS1 - MALTA_ASCIIPOS0;
}
}
static enum core_card malta_core_card(void)
{
u32 corid, rev;
@ -71,6 +89,7 @@ int checkboard(void)
{
enum core_card core;
malta_lcd_puts("U-boot");
puts("Board: MIPS Malta");
core = malta_core_card();