mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-19 00:18:51 +09:00
![Peter Meerwald](/assets/img/avatar_default.png)
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
177 lines
4.5 KiB
C
177 lines
4.5 KiB
C
/*
|
|
* 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;
|
|
}
|