Rationalize UART usage among different BL stages

This patch changes the UART port assignment for various BL stages
so as to make it consistent on the platform ports. The BL1, BL2 and
BL3-1 now uses UART0 on the FVP port and SoC UART0 on the Juno port.
The BL3-2 uses UART2 on the FVP port and FPGA UART0 on the Juno
port.

This provides an interim fix to ARM-software/tf-issues#220 until
support is added for changing the UART port for a BL image between
cold boot and runtime.

Change-Id: Iae5faea90be3d59e41e597b34a902f93e737505a

6 files changed, 7 insertions, 5 deletions

diff --git a/plat/fvp/tsp/tsp_fvp_setup.c b/plat/fvp/tsp/tsp_fvp_setup.c
index ae63a7d..301f669 100644
--- a/plat/fvp/tsp/tsp_fvp_setup.c
+++ b/plat/fvp/tsp/tsp_fvp_setup.c
@@ -72,7 +72,7 @@ void tsp_early_platform_setup(void)
 	 * Initialize a different console than already in use to display
 	 * messages from TSP
 	 */
-	console_init(PL011_UART1_BASE, PL011_UART1_CLK_IN_HZ, PL011_BAUDRATE);
+	console_init(PL011_UART2_BASE, PL011_UART2_CLK_IN_HZ, PL011_BAUDRATE);
 
 	/* Initialize the platform config for future decision making */
 	fvp_config_setup();
diff --git a/plat/juno/bl1_plat_setup.c b/plat/juno/bl1_plat_setup.c
index d2f2ab4..5804682 100644
--- a/plat/juno/bl1_plat_setup.c
+++ b/plat/juno/bl1_plat_setup.c
@@ -75,7 +75,7 @@ void bl1_early_platform_setup(void)
 	const size_t bl1_size = BL1_RAM_LIMIT - BL1_RAM_BASE;
 
 	/* Initialize the console to provide early debug support */
-	console_init(PL011_UART0_BASE, PL011_UART0_CLK_IN_HZ, PL011_BAUDRATE);
+	console_init(PL011_UART2_BASE, PL011_UART2_CLK_IN_HZ, PL011_BAUDRATE);
 
 	/*
 	 * Enable CCI-400 for this cluster. No need for locks as no other cpu is
diff --git a/plat/juno/bl2_plat_setup.c b/plat/juno/bl2_plat_setup.c
index 5dec2d7..717cfbb 100644
--- a/plat/juno/bl2_plat_setup.c
+++ b/plat/juno/bl2_plat_setup.c
@@ -158,7 +158,7 @@ struct entry_point_info *bl2_plat_get_bl31_ep_info(void)
 void bl2_early_platform_setup(meminfo_t *mem_layout)
 {
 	/* Initialize the console to provide early debug support */
-	console_init(PL011_UART0_BASE, PL011_UART0_CLK_IN_HZ, PL011_BAUDRATE);
+	console_init(PL011_UART2_BASE, PL011_UART2_CLK_IN_HZ, PL011_BAUDRATE);
 
 	/* Setup the BL2 memory layout */
 	bl2_tzram_layout = *mem_layout;
diff --git a/plat/juno/bl31_plat_setup.c b/plat/juno/bl31_plat_setup.c
index 131a1b1..4a92d44 100644
--- a/plat/juno/bl31_plat_setup.c
+++ b/plat/juno/bl31_plat_setup.c
@@ -108,7 +108,7 @@ void bl31_early_platform_setup(bl31_params_t *from_bl2,
 			       void *plat_params_from_bl2)
 {
 	/* Initialize the console to provide early debug support */
-	console_init(PL011_UART0_BASE, PL011_UART0_CLK_IN_HZ, PL011_BAUDRATE);
+	console_init(PL011_UART2_BASE, PL011_UART2_CLK_IN_HZ, PL011_BAUDRATE);
 
 	/*
 	 * Initialise the CCI-400 driver for BL31 so that it is accessible after
diff --git a/plat/juno/juno_def.h b/plat/juno/juno_def.h
index 1eae65d..15296ed 100644
--- a/plat/juno/juno_def.h
+++ b/plat/juno/juno_def.h
@@ -138,6 +138,8 @@
 
 #define PL011_UART0_CLK_IN_HZ		24000000
 #define PL011_UART1_CLK_IN_HZ		24000000
+#define PL011_UART2_CLK_IN_HZ		7273800
+#define PL011_UART3_CLK_IN_HZ		7273800
 
 /*******************************************************************************
  * NIC-400 related constants
diff --git a/plat/juno/tsp/tsp_plat_setup.c b/plat/juno/tsp/tsp_plat_setup.c
index b999df1..2d4ab81 100644
--- a/plat/juno/tsp/tsp_plat_setup.c
+++ b/plat/juno/tsp/tsp_plat_setup.c
@@ -72,7 +72,7 @@ void tsp_early_platform_setup(void)
 	 * Initialize a different console than already in use to display
 	 * messages from TSP
 	 */
-	console_init(PL011_UART1_BASE, PL011_UART1_CLK_IN_HZ, PL011_BAUDRATE);
+	console_init(PL011_UART0_BASE, PL011_UART0_CLK_IN_HZ, PL011_BAUDRATE);
 }
 
 /*******************************************************************************