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authorPeter Meerwald <pmeerw@pmeerw.net>2010-09-20 14:08:57 -0400
committerMike Frysinger <vapier@gentoo.org>2010-10-02 16:00:39 -0400
commit063993299f65146b31bdf82e3628b0c4b0d3bd20 (patch)
treef116aa020cc5a85f62671be1abe813fa318f5f14 /board/bct-brettl2/bct-brettl2.c
parent56f0c57b4be8da1e0bbfb52e8aa0fa93f8f8a4e9 (diff)
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Blackfin: bct-brettl2: new board port
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'board/bct-brettl2/bct-brettl2.c')
-rw-r--r--board/bct-brettl2/bct-brettl2.c123
1 files changed, 123 insertions, 0 deletions
diff --git a/board/bct-brettl2/bct-brettl2.c b/board/bct-brettl2/bct-brettl2.c
new file mode 100644
index 0000000..de5b9ff
--- /dev/null
+++ b/board/bct-brettl2/bct-brettl2.c
@@ -0,0 +1,123 @@
+/*
+ * U-boot - main board file for BCT brettl2
+ *
+ * Copyright (c) 2010 BCT Electronic GmbH
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <config.h>
+#include <command.h>
+#include <asm/blackfin.h>
+#include <asm/portmux.h>
+#include <asm/gpio.h>
+#include <asm/net.h>
+#include <net.h>
+#include <netdev.h>
+#include <miiphy.h>
+
+#include "../cm-bf537e/gpio_cfi_flash.h"
+#include "smsc9303.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+ printf("Board: bct-brettl2 board\n");
+ printf(" Support: http://www.bct-electronic.com/\n");
+ return 0;
+}
+
+#ifdef CONFIG_BFIN_MAC
+static void board_init_enetaddr(uchar *mac_addr)
+{
+ puts("Warning: Generating 'random' MAC address\n");
+ bfin_gen_rand_mac(mac_addr);
+ eth_setenv_enetaddr("ethaddr", mac_addr);
+}
+
+int board_eth_init(bd_t *bis)
+{
+ int retry = 3;
+ int ret;
+
+ ret = bfin_EMAC_initialize(bis);
+
+ uchar enetaddr[6];
+ if (eth_getenv_enetaddr("ethaddr", enetaddr)) {
+ printf("setting MAC %pM\n", enetaddr);
+ }
+ puts(" ");
+
+ puts("initialize SMSC LAN9303i ethernet switch\n");
+
+ while (retry-- > 0) {
+ if (init_smsc9303i_mii())
+ return ret;
+ }
+
+ return ret;
+}
+#endif
+
+static void init_tlv320aic31(void)
+{
+ puts("Audio: setup TIMER0 to enable 16.384 MHz clock for tlv320aic31\n");
+ peripheral_request(P_TMR0, "tlv320aic31 clock");
+ bfin_write_TIMER0_CONFIG(0x020d);
+ bfin_write_TIMER0_PERIOD(0x0008);
+ bfin_write_TIMER0_WIDTH(0x0008/2);
+ bfin_write_TIMER_ENABLE(bfin_read_TIMER_ENABLE() | 1);
+ SSYNC();
+ udelay(10000);
+
+ puts(" resetting tlv320aic31\n");
+
+ gpio_request(GPIO_PF2, "tlv320aic31");
+ gpio_direction_output(GPIO_PF2, 0);
+ udelay(10000);
+ gpio_direction_output(GPIO_PF2, 1);
+ udelay(10000);
+ gpio_free(GPIO_PF2);
+}
+
+static void init_mute_pin(void)
+{
+ printf(" unmute class D amplifier\n");
+
+ gpio_request(GPIO_PF5, "mute");
+ gpio_direction_output(GPIO_PF5, 1);
+ gpio_free(GPIO_PF5);
+}
+
+/* sometimes LEDs (speech, status) are still on after reboot, turn 'em off */
+static void turn_leds_off(void)
+{
+ printf(" turn LEDs off\n");
+
+ gpio_request(GPIO_PF6, "led");
+ gpio_direction_output(GPIO_PF6, 0);
+ gpio_free(GPIO_PF6);
+
+ gpio_request(GPIO_PF15, "led");
+ gpio_direction_output(GPIO_PF15, 0);
+ gpio_free(GPIO_PF15);
+}
+
+/* miscellaneous platform dependent initialisations */
+int misc_init_r(void)
+{
+#ifdef CONFIG_BFIN_MAC
+ uchar enetaddr[6];
+ if (!eth_getenv_enetaddr("ethaddr", enetaddr))
+ board_init_enetaddr(enetaddr);
+#endif
+
+ gpio_cfi_flash_init();
+ init_tlv320aic31();
+ init_mute_pin();
+ turn_leds_off();
+
+ return 0;
+}