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From f9b6989bb732e354c174da80052abbba49f238dd Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Fri, 4 May 2012 13:19:45 +0200
Subject: [PATCH 33/79] beaglebone: add support for CAN and RS232 cape
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
arch/arm/mach-omap2/board-am335xevm.c | 36 +++++++++++++++++++++++++++------
1 file changed, 30 insertions(+), 6 deletions(-)
diff --git a/arch/arm/mach-omap2/board-am335xevm.c b/arch/arm/mach-omap2/board-am335xevm.c
index 717bb8c..6e7b203 100644
--- a/arch/arm/mach-omap2/board-am335xevm.c
+++ b/arch/arm/mach-omap2/board-am335xevm.c
@@ -953,6 +953,18 @@ static struct pinmux_config tt3201_pin_mux[] = {
{NULL, 0},
};
+static struct pinmux_config uart1dcan1_pin_mux[] = {
+ {"uart1_rxd.d_can1_tx", OMAP_MUX_MODE2 | AM33XX_PIN_OUTPUT },
+ {"uart1_txd.d_can1_rx", OMAP_MUX_MODE2 | AM33XX_PIN_INPUT_PULLUP },
+ {NULL, 0},
+};
+
+static struct pinmux_config uart1_pin_mux[] = {
+ {"uart1_txd.uart1_txd", OMAP_MUX_MODE0 | AM33XX_PULL_ENBL},
+ {"uart1_rxd.uart1_rxd", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
+ {NULL, 0},
+};
+
/* Module pin mux for uart2 */
static struct pinmux_config uart2_pin_mux[] = {
{"spi0_sclk.uart2_rxd", OMAP_MUX_MODE1 | AM33XX_SLEWCTRL_SLOW |
@@ -2250,12 +2262,24 @@ static void beaglebone_cape_setup(struct memory_accessor *mem_acc, void *context
#endif
}
- if (!strncmp("BB-BONE-SERL", cape_config.partnumber, 12)) {
- pr_info("BeagleBone cape: initializing serial cape\n");
- // 01 -> CAN
- // 02 -> Profibus
- // 03 -> RS232
- // 04 -> RS485
+ if (!strncmp("BB-BONE-SERL-01", cape_config.partnumber, 15)) {
+ pr_info("BeagleBone cape: initializing CAN cape\n");
+ setup_pin_mux(uart1dcan1_pin_mux);
+ am33xx_d_can_init(1);
+ }
+ if (!strncmp("BB-BONE-SERL-02", cape_config.partnumber, 15)) {
+ pr_info("BeagleBone cape: not initializing Profibus cape\n");
+ // gpio1_0
+ // gpio1_4
+ //foo_init(0,0);
+ }
+ if (!strncmp("BB-BONE-SERL-03", cape_config.partnumber, 15)) {
+ pr_info("BeagleBone cape: initializing RS232 cape\n");
+ pr_info("BeagleBone cape: only uart1 is supported!\n");
+ setup_pin_mux(uart1_pin_mux);
+ }
+ if (!strncmp("BB-BONE-SERL-04", cape_config.partnumber, 15)) {
+ pr_info("BeagleBone cape: not initializing RS485 cape\n");
//foo_init(0,0);
}
--
1.7.10
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