Blackfin: bct-brettl2: new board port

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 176 insertions, 0 deletions

diff --git a/board/bct-brettl2/smsc9303.c b/board/bct-brettl2/smsc9303.c
new file mode 100644
index 0000000..15eea7a
--- /dev/null
+++ b/board/bct-brettl2/smsc9303.c
@@ -0,0 +1,176 @@
+/*
+ * smsc9303.c - routines to initialize SMSC 9303 switch
+ *
+ * Copyright (c) 2010 BCT Electronic GmbH
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <config.h>
+#include <miiphy.h>
+
+#include <asm/blackfin.h>
+#include <asm/gpio.h>
+
+static int smc9303i_write_mii(unsigned char addr, unsigned char reg, unsigned short data)
+{
+	const char *devname = miiphy_get_current_dev();
+
+	if (!devname)
+	    return 0;
+
+	if (miiphy_write(devname, addr, reg, data) != 0)
+	    return 0;
+
+	return 1;
+}
+
+static int smc9303i_write_reg(unsigned short reg, unsigned int data)
+{
+	const char *devname = miiphy_get_current_dev();
+	unsigned char mii_addr = 0x10 | (reg >> 6);
+	unsigned char mii_reg = (reg & 0x3c) >> 1;
+
+	if (!devname)
+	    return 0;
+
+	if (miiphy_write(devname, mii_addr, mii_reg|0, data & 0xffff) != 0)
+	    return 0;
+
+	if (miiphy_write(devname, mii_addr, mii_reg|1, data >> 16) != 0)
+	    return 0;
+
+	return 1;
+}
+
+static int smc9303i_read_reg(unsigned short reg, unsigned int *data)
+{
+	const char *devname = miiphy_get_current_dev();
+	unsigned char mii_addr = 0x10 | (reg >> 6);
+	unsigned char mii_reg = (reg & 0x3c) >> 1;
+	unsigned short tmp1, tmp2;
+
+	if (!devname)
+	    return 0;
+
+	if (miiphy_read(devname, mii_addr, mii_reg|0, &tmp1) != 0)
+	    return 0;
+
+	if (miiphy_read(devname, mii_addr, mii_reg|1, &tmp2) != 0)
+	    return 0;
+
+	*data = (tmp2 << 16) | tmp1;
+
+	return 1;
+}
+
+#if 0
+static int smc9303i_read_mii(unsigned char addr, unsigned char reg, unsigned short *data)
+{
+	const char *devname = miiphy_get_current_dev();
+
+	if (!devname)
+	    return 0;
+
+	if (miiphy_read(devname, addr, reg, data) != 0)
+	    return 0;
+
+	return 1;
+}
+#endif
+
+typedef struct {
+	unsigned short reg;
+	unsigned int value;
+} smsc9303i_config_entry1_t;
+
+static const smsc9303i_config_entry1_t smsc9303i_config_table1[] =
+{
+	{0x1a0, 0x00000006}, /* Port 1 Manual Flow Control Register */
+	{0x1a4, 0x00000006}, /* Port 2 Manual Flow Control Register */
+	{0x1a8, 0x00000006}, /* Port 0 Manual Flow Control Register */
+};
+
+typedef struct
+{
+	unsigned char addr;
+	unsigned char reg;
+	unsigned short value;
+} smsc9303i_config_entry2_t;
+
+static const smsc9303i_config_entry2_t smsc9303i_config_table2[] =
+{
+	{0x01, 0x00, 0x0100}, /* Port0 PHY Basic Control Register */
+	{0x02, 0x00, 0x1100}, /* Port1 PHY Basic Control Register */
+	{0x03, 0x00, 0x1100}, /* Port2 PHY Basic Control Register */
+
+	{0x01, 0x04, 0x0001}, /* Port0 PHY Auto-Negotiation Advertisement Register */
+	{0x02, 0x04, 0x2de1}, /* Port1 PHY Auto-Negotiation Advertisement Register */
+	{0x03, 0x04, 0x2de1}, /* Port2 PHY Auto-Negotiation Advertisement Register */
+
+	{0x01, 0x11, 0x0000}, /* Port0 PHY Mode Control/Status Register */
+	{0x02, 0x11, 0x0000}, /* Port1 PHY Mode Control/Status Register */
+	{0x03, 0x11, 0x0000}, /* Port2 PHY Mode Control/Status Register */
+
+	{0x01, 0x12, 0x0021}, /* Port0 PHY Special Modes Register */
+	{0x02, 0x12, 0x00e2}, /* Port1 PHY Special Modes Register */
+	{0x03, 0x12, 0x00e3}, /* Port2 PHY Special Modes Register */
+	{0x01, 0x1b, 0x0000}, /* Port0 PHY Special Control/Status Indication Register */
+	{0x02, 0x1b, 0x0000}, /* Port1 PHY Special Control/Status Indication Register */
+	{0x03, 0x1b, 0x0000}, /* Port2 PHY Special Control/Status Indication Register */
+	{0x01, 0x1e, 0x0000}, /* Port0 PHY Interrupt Source Flags Register */
+	{0x02, 0x1e, 0x0000}, /* Port1 PHY Interrupt Source Flags Register */
+	{0x03, 0x1e, 0x0000}, /* Port2 PHY Interrupt Source Flags Register */
+};
+
+int init_smsc9303i_mii(void)
+{
+	unsigned int data;
+	unsigned int i;
+
+	printf("       reset SMSC LAN9303i\n");
+
+	gpio_request(GPIO_PG10, "smsc9303");
+	gpio_direction_output(GPIO_PG10, 0);
+	udelay(10000);
+	gpio_direction_output(GPIO_PG10, 1);
+	udelay(10000);
+
+	gpio_free(GPIO_PG10);
+
+#if defined(CONFIG_MII_INIT)
+	mii_init();
+#endif
+
+	printf("       write SMSC LAN9303i configuration\n");
+
+	if (!smc9303i_read_reg(0x50, &data))
+		return 0;
+
+	if ((data >> 16) != 0x9303)	{
+		/* chip id not found */
+		printf("       error identifying SMSC LAN9303i\n");
+		return 0;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(smsc9303i_config_table1); i++) {
+		const smsc9303i_config_entry1_t *entry = &smsc9303i_config_table1[i];
+
+		if (!smc9303i_write_reg(entry->reg, entry->value)) {
+			printf("       error writing SMSC LAN9303i configuration\n");
+			return 0;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(smsc9303i_config_table2); i++) {
+		const smsc9303i_config_entry2_t *entry = &smsc9303i_config_table2[i];
+
+		if (!smc9303i_write_mii(entry->addr, entry->reg, entry->value)) {
+			printf("       error writing SMSC LAN9303i configuration\n");
+			return 0;
+		}
+	}
+
+	return 1;
+}