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Code

switch enable UART0 by press [S]

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switch USBBOOT mode by press [U]
This commit is contained in:
Xiangfu Liu 2009-11-26 15:46:22 +08:00
parent 69ea41784f
commit e9fdf9f61f
1 changed files with 117 additions and 13 deletions
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130
target/linux/xburst/image/u-boot/patches/0003-disable-init-gpio-as-uart0.patch
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@ -1,29 +1,133 @@
diff --git a/board/qi_lb60/qi_lb60.c b/board/qi_lb60/qi_lb60.c
index d13f2ab..86c33ba 100644
index d13f2ab..30ee73c 100644
--- a/board/qi_lb60/qi_lb60.c
+++ b/board/qi_lb60/qi_lb60.c
@@ -25,9 +25,11 @@ static void gpio_init(void)
@@ -25,11 +25,6 @@ static void gpio_init(void)
__gpio_as_sdram_32bit();
/*
- * Initialize UART0 pins
- */
- __gpio_as_uart0();
-
- /*
* Initialize LCD pins
*/
__gpio_as_lcd_18bit();
@@ -43,17 +38,30 @@ static void gpio_init(void)
* Initialize Other pins
*/
unsigned int i;
+ for (i = 0; i < 7; i++){
+ __gpio_as_input(GPIO_KEYIN_BASE + i);
+ __gpio_enable_pull(GPIO_KEYIN_BASE + i);
+ }
+
for (i = 0; i < 8; i++) {
__gpio_as_output(GPIO_KEYOUT_BASE + i);
- __gpio_set_pin(GPIO_KEYOUT_BASE + i);
+ __gpio_clear_pin(GPIO_KEYOUT_BASE + i);
}
- for (i = 0; i < 7; i++){
- __gpio_as_input(GPIO_KEYIN_BASE + i);
- __gpio_enable_pull(GPIO_KEYIN_BASE + i);
+ /*
+ * Initialize UART0 pins, in Ben NanoNote uart0 and keyin8 use the
+ * same gpio, init the gpio as uart0 cause a keyboard bug. so for
+ * end user we disable the uart0
*/
- __gpio_as_uart0();
+ /* __gpio_as_uart0(); */
/*
* Initialize LCD pins
@@ -52,8 +54,8 @@ static void gpio_init(void)
__gpio_as_input(GPIO_KEYIN_BASE + i);
__gpio_enable_pull(GPIO_KEYIN_BASE + i);
+ */
+ if (__gpio_get_pin(GPIO_KEYIN_BASE + 2) == 0){
+ /* if pressed [S] */
+ printf("[S] pressed, enable UART0\n");
+ __gpio_as_uart0();
+ } else {
+ printf("[S] not pressed, disable UART0\n");
+ __gpio_as_input(GPIO_KEYIN_8);
+ __gpio_enable_pull(GPIO_KEYIN_8);
}
- /* __gpio_as_input( GPIO_KEYIN_8 ); */
- /* __gpio_enable_pull( GPIO_KEYIN_8 ); */
+ __gpio_as_input(GPIO_KEYIN_8);
+ __gpio_enable_pull(GPIO_KEYIN_8);
__gpio_as_output(GPIO_AUDIO_POP);
__gpio_set_pin(GPIO_AUDIO_POP);
diff --git a/nand_spl/nand_boot_jz4740.c b/nand_spl/nand_boot_jz4740.c
index 924a47a..146de19 100644
--- a/nand_spl/nand_boot_jz4740.c
+++ b/nand_spl/nand_boot_jz4740.c
@@ -24,10 +24,8 @@
#include <asm/io.h>
#include <asm/jz4740.h>
-#define KEY_1_OUT (32 * 3 + 21)
-#define KEY_1_IN (32 * 3 + 19)
-#define KEY_2_OUT (32 * 3 + 25)
-#define KEY_2_IN (32 * 3 + 26)
+#define KEY_U_OUT (32 * 2 + 16)
+#define KEY_U_IN (32 * 3 + 19)
/*
* NAND flash definitions
@@ -350,40 +348,25 @@ static void gpio_init(void)
static int is_usb_boot()
{
- int key2,keyh;
-
- key2 = 0;
- keyh = 0;
+ int keyU = 0;
- __gpio_as_output(KEY_1_OUT);
- __gpio_as_output(KEY_2_OUT);
- __gpio_as_input(KEY_1_IN);
- __gpio_as_input(KEY_2_IN);
- __gpio_disable_pull(KEY_1_IN);
- __gpio_disable_pull(KEY_2_IN);
+ __gpio_as_input(KEY_U_IN);
+ __gpio_enable_pull(KEY_U_IN);
- __gpio_clear_pin(KEY_1_OUT);
- __gpio_clear_pin(KEY_2_OUT);
-
- key2 = __gpio_get_pin(KEY_2_IN);
- keyh = __gpio_get_pin(KEY_1_IN);
+ __gpio_as_output(KEY_U_OUT);
+ __gpio_clear_pin(KEY_U_OUT);
- if(key2)
- serial_puts("key2");
- else
- serial_puts("key2--");
+ keyU = __gpio_get_pin(KEY_U_IN);
- if(keyh)
- serial_puts("keyh");
+ if (keyU)
+ serial_puts("[U] not pressed\n");
else
- serial_puts("keyh--");
+ serial_puts("[U] pressed\n");
-
- if( ( key2 == 0 ) && ( keyh == 0 ) )
+ if (keyU == 0)
return 1;
else
return 0;
-
}
void nand_boot(void)
@@ -402,9 +385,8 @@ void nand_boot(void)
pll_init();
sdram_init();
- int ret = 0;
- ret = is_usb_boot();
- if(ret) {
+ if(is_usb_boot()) {
+ serial_puts("enter USB BOOT mode\n");
usb_boot();
}