2 * U-boot - main board file
4 * Copyright (c) 2008-2009 Analog Devices Inc.
6 * Licensed under the GPL-2 or later.
15 #include <asm/blackfin.h>
17 #include <asm/mach-common/bits/otp.h>
20 DECLARE_GLOBAL_DATA_PTR;
24 printf("Board: ADI BF518F EZ-Board board\n");
25 printf(" Support: http://blackfin.uclinux.org/\n");
29 #if defined(CONFIG_BFIN_MAC)
30 static void board_init_enetaddr(uchar *mac_addr)
32 bool valid_mac = false;
35 /* the MAC is stored in OTP memory page 0xDF */
39 ret = bfrom_OtpRead(0xDF, OTP_LOWER_HALF, &otp_mac);
40 if (!(ret & OTP_MASTER_ERROR)) {
41 uchar *otp_mac_p = (uchar *)&otp_mac;
43 for (ret = 0; ret < 6; ++ret)
44 mac_addr[ret] = otp_mac_p[5 - ret];
46 if (is_valid_ether_addr(mac_addr))
52 puts("Warning: Generating 'random' MAC address\n");
53 bfin_gen_rand_mac(mac_addr);
56 eth_setenv_enetaddr("ethaddr", mac_addr);
59 #define KSZ_MAX_HZ 5000000
61 #define KSZ_WRITE 0x02
64 #define KSZ_REG_STPID 0x01 /* Register 1: Chip ID1 / Start Switch */
65 #define KSZ_REG_GC9 0x0b /* Register 11: Global Control 9 */
66 #define KSZ_REG_P3C0 0x30 /* Register 48: Port 3 Control 0 */
68 static int ksz8893m_transfer(struct spi_slave *slave, uchar dir, uchar reg,
69 uchar data, uchar result[3])
71 unsigned char dout[3] = { dir, reg, data, };
72 return spi_xfer(slave, sizeof(dout) * 8, dout, result, SPI_XFER_BEGIN | SPI_XFER_END);
75 static int ksz8893m_reg_set(struct spi_slave *slave, uchar reg, uchar data)
78 return ksz8893m_transfer(slave, KSZ_WRITE, reg, data, din);
81 static int ksz8893m_reg_clear(struct spi_slave *slave, uchar reg, uchar mask)
86 ret |= ksz8893m_transfer(slave, KSZ_READ, reg, 0, din);
87 ret |= ksz8893m_reg_set(slave, reg, din[2] & mask);
92 static int ksz8893m_reset(struct spi_slave *slave)
96 /* Disable STPID mode */
97 ret |= ksz8893m_reg_clear(slave, KSZ_REG_GC9, 0x01);
99 /* Disable VLAN tag insert on Port3 */
100 ret |= ksz8893m_reg_clear(slave, KSZ_REG_P3C0, 0x04);
103 ret |= ksz8893m_reg_set(slave, KSZ_REG_STPID, 0x01);
108 int board_eth_init(bd_t *bis)
110 static bool switch_is_alive = false;
113 if (!switch_is_alive) {
114 struct spi_slave *slave = spi_setup_slave(0, 1, KSZ_MAX_HZ, SPI_MODE_3);
116 if (!spi_claim_bus(slave)) {
117 ret = ksz8893m_reset(slave);
119 switch_is_alive = true;
120 spi_release_bus(slave);
122 spi_free_slave(slave);
127 return bfin_EMAC_initialize(bis);
133 int misc_init_r(void)
135 #ifdef CONFIG_BFIN_MAC
137 if (!eth_getenv_enetaddr("ethaddr", enetaddr))
138 board_init_enetaddr(enetaddr);
144 int board_early_init_f(void)
146 #if !defined(CONFIG_SYS_NO_FLASH)
147 /* setup BF518-EZBRD GPIO pin PG11 to AMS2. */
148 bfin_write_PORTG_MUX((bfin_read_PORTG_MUX() & ~PORT_x_MUX_6_MASK) | PORT_x_MUX_6_FUNC_2);
149 bfin_write_PORTG_FER(bfin_read_PORTG_FER() | PG11);
151 # if !defined(CONFIG_BFIN_SPI)
152 /* setup BF518-EZBRD GPIO pin PG15 to AMS3. */
153 bfin_write_PORTG_MUX((bfin_read_PORTG_MUX() & ~PORT_x_MUX_7_MASK) | PORT_x_MUX_7_FUNC_3);
154 bfin_write_PORTG_FER(bfin_read_PORTG_FER() | PG15);
160 #ifdef CONFIG_BFIN_SDH
161 int board_mmc_init(bd_t *bis)
163 return bfin_mmc_init(bis);