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>
16 #include <asm/portmux.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 #ifndef CONFIG_SYS_NO_FLASH
33 /* we cram the MAC in the last flash sector */
34 uchar *board_mac_addr = (uchar *)0x203F0096;
35 if (is_valid_ethaddr(board_mac_addr)) {
36 memcpy(mac_addr, board_mac_addr, 6);
37 eth_setenv_enetaddr("ethaddr", mac_addr);
42 /* Only the first run of boards had a KSZ switch */
43 #if defined(CONFIG_BFIN_SPI) && __SILICON_REVISION__ == 0
44 # define KSZ_POSSIBLE 1
46 # define KSZ_POSSIBLE 0
49 #define KSZ_MAX_HZ 5000000
51 #define KSZ_WRITE 0x02
54 #define KSZ_REG_CHID 0x00 /* Register 0: Chip ID0 */
55 #define KSZ_REG_STPID 0x01 /* Register 1: Chip ID1 / Start Switch */
56 #define KSZ_REG_GC9 0x0b /* Register 11: Global Control 9 */
57 #define KSZ_REG_P3C0 0x30 /* Register 48: Port 3 Control 0 */
59 static int ksz8893m_transfer(struct spi_slave *slave, uchar dir, uchar reg,
60 uchar data, uchar result[3])
62 unsigned char dout[3] = { dir, reg, data, };
63 return spi_xfer(slave, sizeof(dout) * 8, dout, result, SPI_XFER_BEGIN | SPI_XFER_END);
66 static int ksz8893m_reg_set(struct spi_slave *slave, uchar reg, uchar data)
69 return ksz8893m_transfer(slave, KSZ_WRITE, reg, data, din);
72 static int ksz8893m_reg_read(struct spi_slave *slave, uchar reg)
76 ret = ksz8893m_transfer(slave, KSZ_READ, reg, 0, din);
77 return ret ? ret : din[2];
80 static int ksz8893m_reg_clear(struct spi_slave *slave, uchar reg, uchar mask)
82 return ksz8893m_reg_set(slave, reg, ksz8893m_reg_read(slave, reg) & mask);
85 static int ksz8893m_reset(struct spi_slave *slave)
89 /* Disable STPID mode */
90 ret |= ksz8893m_reg_clear(slave, KSZ_REG_GC9, 0x01);
92 /* Disable VLAN tag insert on Port3 */
93 ret |= ksz8893m_reg_clear(slave, KSZ_REG_P3C0, 0x04);
96 ret |= ksz8893m_reg_set(slave, KSZ_REG_STPID, 0x01);
101 static bool board_ksz_init(void)
103 static bool switch_is_alive = false;
105 if (!switch_is_alive) {
106 struct spi_slave *slave = spi_setup_slave(0, 1, KSZ_MAX_HZ, SPI_MODE_3);
108 if (!spi_claim_bus(slave)) {
109 bool phy_is_ksz = (ksz8893m_reg_read(slave, KSZ_REG_CHID) == 0x88);
110 int ret = phy_is_ksz ? ksz8893m_reset(slave) : 0;
111 switch_is_alive = (ret == 0);
112 spi_release_bus(slave);
114 spi_free_slave(slave);
118 return switch_is_alive;
121 int board_eth_init(bd_t *bis)
124 if (!board_ksz_init())
127 return bfin_EMAC_initialize(bis);
131 int misc_init_r(void)
133 #ifdef CONFIG_BFIN_MAC
135 if (!eth_getenv_enetaddr("ethaddr", enetaddr))
136 board_init_enetaddr(enetaddr);
139 #ifndef CONFIG_SYS_NO_FLASH
140 /* we use the last sector for the MAC address / POST LDR */
141 extern flash_info_t flash_info[];
142 flash_protect(FLAG_PROTECT_SET, 0x203F0000, 0x203FFFFF, &flash_info[0]);
148 int board_early_init_f(void)
150 /* connect async banks by default */
151 const unsigned short pins[] = {
154 return peripheral_request_list(pins, "async");
157 #ifdef CONFIG_BFIN_SDH
158 int board_mmc_init(bd_t *bis)
160 return bfin_mmc_init(bis);