Dear Paul Burton,
On 10/11/13 20:08, Marek Vasut wrote:
Dear Paul Burton,
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
Changes in v3:
- rebase atop master
Changes in v2:
- rebased after malta moved to board/imgtec/malta
arch/mips/include/asm/malta.h | 10 ++++++++++ board/imgtec/malta/malta.c | 19 +++++++++++++++++++ 2 files changed, 29 insertions(+)
diff --git a/arch/mips/include/asm/malta.h b/arch/mips/include/asm/malta.h index 0b50a66..d8ec57c 100644 --- a/arch/mips/include/asm/malta.h +++ b/arch/mips/include/asm/malta.h @@ -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
diff --git a/board/imgtec/malta/malta.c b/board/imgtec/malta/malta.c index 2af0067..119546a 100644 --- a/board/imgtec/malta/malta.c +++ b/board/imgtec/malta/malta.c @@ -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();
Can this not be implemented as a regular framebuffer console maybe?
Best regards, Marek Vasut
We're talking about an 8 character segmented LCD display here - it's not something you can draw (non-ASCII) graphics on, nor something you want to be interacting with even if you hooked up some input.
Oh OK, I see.