[U-Boot] [PATCH v3 4/4] am335x_evm: Enable use of UART{1,2,3,4,5}

[Andrew Bradford]

Add targets of am335x_evm_uart{1,2,3,4,5} to have serial input/output on
UART{1,2,3,4,5} for use with the Beaglebone RS232 cape, am335x_evm
daughterboard, and other custom configurations.

Signed-off-by: Andrew Bradford <andrew at bradfordembedded.com>
---
Changes from v2:
	Set CONS_INDEX and SERIALX in the target options instead of
	using AM33XX_UART_SELECT resulting in an easier to read config.
Changes from v1:
	Add UART3 target and register location

 boards.cfg                   |    5 +++++
 include/configs/am335x_evm.h |   12 +++++++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/boards.cfg b/boards.cfg
index b14a08f..0024033 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -226,6 +226,11 @@ integratorap_cm946es         arm         arm946es    integrator          armltd
 integratorcp_cm946es         arm         arm946es    integrator          armltd         -               integratorcp:CM946ES
 ca9x4_ct_vxp                 arm         armv7       vexpress            armltd
 am335x_evm                   arm         armv7       am335x              ti             am33xx
+am335x_evm_uart1             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL2=1,CONS_INDEX=2
+am335x_evm_uart2             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL3=1,CONS_INDEX=3
+am335x_evm_uart3             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL4=1,CONS_INDEX=4
+am335x_evm_uart4             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL5=1,CONS_INDEX=5
+am335x_evm_uart5             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL6=1,CONS_INDEX=6
 highbank                     arm         armv7       highbank            -              highbank
 mx51_efikamx                 arm         armv7       mx51_efikamx        genesi         mx5		mx51_efikamx:MACH_TYPE=MACH_TYPE_MX51_EFIKAMX,IMX_CONFIG=board/genesi/mx51_efikamx/imximage_mx.cfg
 mx51_efikasb                 arm         armv7       mx51_efikamx        genesi         mx5		mx51_efikamx:MACH_TYPE=MACH_TYPE_MX51_EFIKASB,IMX_CONFIG=board/genesi/mx51_efikamx/imximage_sb.cfg
diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index 339d4bd..b2df711 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -158,9 +158,15 @@
 /* NS16550 Configuration */
 #define CONFIG_SYS_NS16550
 #define CONFIG_SYS_NS16550_SERIAL
+#define CONFIG_SERIAL_MULTI
 #define CONFIG_SYS_NS16550_REG_SIZE	(-4)
 #define CONFIG_SYS_NS16550_CLK		(48000000)
 #define CONFIG_SYS_NS16550_COM1		0x44e09000	/* Base EVM has UART0 */
+#define CONFIG_SYS_NS16550_COM2		0x48022000	/* UART1 */
+#define CONFIG_SYS_NS16550_COM3		0x48024000	/* UART2 */
+#define CONFIG_SYS_NS16550_COM4		0x481a6000	/* UART3 */
+#define CONFIG_SYS_NS16550_COM5		0x481a8000	/* UART4 */
+#define CONFIG_SYS_NS16550_COM6		0x481aa000	/* UART5 */
 
 /* I2C Configuration */
 #define CONFIG_I2C
@@ -182,11 +188,15 @@
 #define CONFIG_SYS_BAUDRATE_TABLE	{ 110, 300, 600, 1200, 2400, \
 4800, 9600, 14400, 19200, 28800, 38400, 56000, 57600, 115200 }
 
+#define CONFIG_ENV_OVERWRITE		1
+
 /*
- * select serial console configuration
+ * select serial console configuration, uart0 always enabled
  */
 #define CONFIG_SERIAL1			1
+#ifndef CONFIG_CONS_INDEX
 #define CONFIG_CONS_INDEX		1
+#endif /* CONFIG_CONS_INDEX */
 #define CONFIG_SYS_CONSOLE_INFO_QUIET
 
 #define CONFIG_ENV_IS_NOWHERE
-- 
1.7.10.4