LCD4 needs a slightly different GPIO configuration than the original LWMON5 variant. GPIO49 needs to be configured to a default output value of 0 (permanent voltage supply).
Additionally lcd4 also needs to enable the LSB transmitter.
Signed-off-by: Stefan Roese sr@denx.de --- board/lwmon5/lwmon5.c | 3 +++ include/configs/lwmon5.h | 10 +++++++++- 2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/board/lwmon5/lwmon5.c b/board/lwmon5/lwmon5.c index 4e4a594..e9aa0b7 100644 --- a/board/lwmon5/lwmon5.c +++ b/board/lwmon5/lwmon5.c @@ -527,6 +527,9 @@ void spl_board_init(void) */ board_early_init_f();
+ /* enable the LSB transmitter */ + gpio_write_bit(CONFIG_SYS_GPIO_LSB_ENABLE, 1); + /* * Clear resets */ diff --git a/include/configs/lwmon5.h b/include/configs/lwmon5.h index 8f5eb95..96f3ba5 100644 --- a/include/configs/lwmon5.h +++ b/include/configs/lwmon5.h @@ -565,6 +565,7 @@ #define CONFIG_SYS_GPIO_PHY1_RST 12 #define CONFIG_SYS_GPIO_FLASH_WP 14 #define CONFIG_SYS_GPIO_PHY0_RST 22 +#define CONFIG_SYS_GPIO_PERM_VOLT_FEED 49 #define CONFIG_SYS_GPIO_DSPIC_READY 51 #define CONFIG_SYS_GPIO_CAN_ENABLE 53 #define CONFIG_SYS_GPIO_LSB_ENABLE 54 @@ -577,6 +578,13 @@ #define CONFIG_SYS_GPIO_SYSMON_STATUS 62 #define CONFIG_SYS_GPIO_WATCHDOG 63
+/* On LCD4, GPIO49 has to be configured to 0 instead of 1 */ +#ifdef CONFIG_LCD4_LWMON5 +#define GPIO49_VAL 0 +#else +#define GPIO49_VAL 1 +#endif + /* * PPC440 GPIO Configuration */ @@ -635,7 +643,7 @@ {GPIO1_BASE, GPIO_IN , GPIO_ALT1, GPIO_OUT_0}, /* GPIO46 UIC_IRQ(7) DMA_REQ(0) */ \ {GPIO1_BASE, GPIO_IN , GPIO_ALT1, GPIO_OUT_0}, /* GPIO47 UIC_IRQ(8) DMA_ACK(0) */ \ {GPIO1_BASE, GPIO_IN , GPIO_ALT1, GPIO_OUT_0}, /* GPIO48 UIC_IRQ(9) DMA_EOT/TC(0) */ \ -{GPIO1_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_1}, /* GPIO49 Unselect via TraceSelect Bit */ \ +{GPIO1_BASE, GPIO_OUT, GPIO_SEL , GPIO49_VAL}, /* GPIO49 Unselect via TraceSelect Bit */ \ {GPIO1_BASE, GPIO_IN, GPIO_SEL , GPIO_OUT_0}, /* GPIO50 Unselect via TraceSelect Bit */ \ {GPIO1_BASE, GPIO_IN , GPIO_SEL , GPIO_OUT_0}, /* GPIO51 Unselect via TraceSelect Bit */ \ {GPIO1_BASE, GPIO_IN , GPIO_SEL , GPIO_OUT_0}, /* GPIO52 Unselect via TraceSelect Bit */ \