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_CHID 0x00 /* Register 0: Chip ID0 */
65 #define KSZ_REG_STPID 0x01 /* Register 1: Chip ID1 / Start Switch */
66 #define KSZ_REG_GC9 0x0b /* Register 11: Global Control 9 */
67 #define KSZ_REG_P3C0 0x30 /* Register 48: Port 3 Control 0 */
69 static int ksz8893m_transfer(struct spi_slave *slave, uchar dir, uchar reg,
70 uchar data, uchar result[3])
72 unsigned char dout[3] = { dir, reg, data, };
73 return spi_xfer(slave, sizeof(dout) * 8, dout, result, SPI_XFER_BEGIN | SPI_XFER_END);
76 static int ksz8893m_reg_set(struct spi_slave *slave, uchar reg, uchar data)
79 return ksz8893m_transfer(slave, KSZ_WRITE, reg, data, din);
82 static int ksz8893m_reg_read(struct spi_slave *slave, uchar reg)
86 ret = ksz8893m_transfer(slave, KSZ_READ, reg, 0, din);
87 return ret ? ret : din[2];
90 static int ksz8893m_reg_clear(struct spi_slave *slave, uchar reg, uchar mask)
92 return ksz8893m_reg_set(slave, reg, ksz8893m_reg_read(slave, reg) & mask);
95 static int ksz8893m_reset(struct spi_slave *slave)
99 /* Disable STPID mode */
100 ret |= ksz8893m_reg_clear(slave, KSZ_REG_GC9, 0x01);
102 /* Disable VLAN tag insert on Port3 */
103 ret |= ksz8893m_reg_clear(slave, KSZ_REG_P3C0, 0x04);
106 ret |= ksz8893m_reg_set(slave, KSZ_REG_STPID, 0x01);
111 int board_eth_init(bd_t *bis)
113 static bool switch_is_alive = false, phy_is_ksz = true;
116 if (!switch_is_alive) {
117 struct spi_slave *slave = spi_setup_slave(0, 1, KSZ_MAX_HZ, SPI_MODE_3);
119 if (!spi_claim_bus(slave)) {
120 phy_is_ksz = (ksz8893m_reg_read(slave, KSZ_REG_CHID) == 0x88);
121 ret = phy_is_ksz ? ksz8893m_reset(slave) : 0;
122 switch_is_alive = (ret == 0);
123 spi_release_bus(slave);
125 spi_free_slave(slave);
130 return bfin_EMAC_initialize(bis);
136 int misc_init_r(void)
138 #ifdef CONFIG_BFIN_MAC
140 if (!eth_getenv_enetaddr("ethaddr", enetaddr))
141 board_init_enetaddr(enetaddr);
147 int board_early_init_f(void)
149 #if !defined(CONFIG_SYS_NO_FLASH)
150 /* setup BF518-EZBRD GPIO pin PG11 to AMS2. */
151 bfin_write_PORTG_MUX((bfin_read_PORTG_MUX() & ~PORT_x_MUX_6_MASK) | PORT_x_MUX_6_FUNC_2);
152 bfin_write_PORTG_FER(bfin_read_PORTG_FER() | PG11);
154 # if !defined(CONFIG_BFIN_SPI)
155 /* setup BF518-EZBRD GPIO pin PG15 to AMS3. */
156 bfin_write_PORTG_MUX((bfin_read_PORTG_MUX() & ~PORT_x_MUX_7_MASK) | PORT_x_MUX_7_FUNC_3);
157 bfin_write_PORTG_FER(bfin_read_PORTG_FER() | PG15);
163 #ifdef CONFIG_BFIN_SDH
164 int board_mmc_init(bd_t *bis)
166 return bfin_mmc_init(bis);