[U-Boot] [PATCH V3 5/5] ARM: tegra: don't request GPIO from Seaboard's SPL

[Stephen Warren]

From: Stephen Warren <swarren at nvidia.com>

Seaboard has a GPIO that switches an external mux between Tegra's debug
UART and SPI flash. This is initialized from the SPL so that SPL debug
output can be seen. Simplify the code that does this, and don't actually
request the GPIO in the SPL; just program it. This saves ~4.5K from the
size of the SPL, mostly BSS due to the large gpio_names[] table that is
no longer required. This makes Seaboard's SPL fit within the current max
size.

Signed-off-by: Stephen Warren <swarren at nvidia.com>
Acked-by: Simon Glass <sjg at chromium.org>
Acked-by: Allen Martin <amartin at nvidia.com>
---
v3: No change.
v2: New patch to replace modification of CONFIG_SYS_TEXT_BASE.
---
 board/nvidia/seaboard/seaboard.c |   14 ++++----------
 1 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/board/nvidia/seaboard/seaboard.c b/board/nvidia/seaboard/seaboard.c
index ea431e9..c412c07 100644
--- a/board/nvidia/seaboard/seaboard.c
+++ b/board/nvidia/seaboard/seaboard.c
@@ -26,6 +26,7 @@
 #include <asm/arch/tegra.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/funcmux.h>
+#include <asm/arch/gpio.h>
 #include <asm/arch/pinmux.h>
 #include <asm/arch-tegra/mmc.h>
 #include <asm/gpio.h>
@@ -35,21 +36,14 @@
 
 /* TODO: Remove this code when the SPI switch is working */
 #if !defined(CONFIG_SPI_UART_SWITCH) && (CONFIG_MACH_TYPE != MACH_TYPE_VENTANA)
-/*
- * Routine: gpio_config_uart_seaboard
- * Description: Force GPIO_PI3 low on Seaboard so UART4 works.
- */
-static void gpio_config_uart_seaboard(void)
+void gpio_early_init_uart(void)
 {
 	/* Enable UART via GPIO_PI3 (port 8, bit 3) so serial console works */
+#ifndef CONFIG_SPL_BUILD
 	gpio_request(GPIO_PI3, NULL);
+#endif
 	gpio_direction_output(GPIO_PI3, 0);
 }
-
-void gpio_early_init_uart(void)
-{
-	gpio_config_uart_seaboard();
-}
 #endif
 
 #ifdef CONFIG_TEGRA_MMC
-- 
1.7.0.4