1 /* 2 * Copyright (C) 2010 Freescale Semiconductor, Inc. 3 * Copyright (C) 2010 Ilya Yanok, Emcraft Systems, yanok@emcraft.com 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <hwconfig.h> 10 #include <i2c.h> 11 #include <spi.h> 12 #include <linux/libfdt.h> 13 #include <fdt_support.h> 14 #include <pci.h> 15 #include <mpc83xx.h> 16 #include <vsc7385.h> 17 #include <netdev.h> 18 #include <fsl_esdhc.h> 19 #include <asm/io.h> 20 #include <asm/fsl_serdes.h> 21 #include <asm/fsl_mpc83xx_serdes.h> 22 23 DECLARE_GLOBAL_DATA_PTR; 24 25 /* 26 * The following are used to control the SPI chip selects for the SPI command. 27 */ 28 #ifdef CONFIG_MPC8XXX_SPI 29 30 #define SPI_CS_MASK 0x00400000 31 32 int spi_cs_is_valid(unsigned int bus, unsigned int cs) 33 { 34 return bus == 0 && cs == 0; 35 } 36 37 void spi_cs_activate(struct spi_slave *slave) 38 { 39 immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; 40 41 /* active low */ 42 clrbits_be32(&immr->gpio[0].dat, SPI_CS_MASK); 43 } 44 45 void spi_cs_deactivate(struct spi_slave *slave) 46 { 47 immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; 48 49 /* inactive high */ 50 setbits_be32(&immr->gpio[0].dat, SPI_CS_MASK); 51 } 52 #endif /* CONFIG_MPC8XXX_SPI */ 53 54 #ifdef CONFIG_FSL_ESDHC 55 int board_mmc_init(bd_t *bd) 56 { 57 return fsl_esdhc_mmc_init(bd); 58 } 59 #endif 60 61 static u8 read_board_info(void) 62 { 63 u8 val8; 64 i2c_set_bus_num(0); 65 66 if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0) 67 return val8; 68 else 69 return 0; 70 } 71 72 int checkboard(void) 73 { 74 static const char * const rev_str[] = { 75 "1.0", 76 "<reserved>", 77 "<reserved>", 78 "<reserved>", 79 "<unknown>", 80 }; 81 u8 info; 82 int i; 83 84 info = read_board_info(); 85 i = (!info) ? 4 : info & 0x03; 86 87 printf("Board: Freescale MPC8308RDB Rev %s\n", rev_str[i]); 88 89 return 0; 90 } 91 92 static struct pci_region pcie_regions_0[] = { 93 { 94 .bus_start = CONFIG_SYS_PCIE1_MEM_BASE, 95 .phys_start = CONFIG_SYS_PCIE1_MEM_PHYS, 96 .size = CONFIG_SYS_PCIE1_MEM_SIZE, 97 .flags = PCI_REGION_MEM, 98 }, 99 { 100 .bus_start = CONFIG_SYS_PCIE1_IO_BASE, 101 .phys_start = CONFIG_SYS_PCIE1_IO_PHYS, 102 .size = CONFIG_SYS_PCIE1_IO_SIZE, 103 .flags = PCI_REGION_IO, 104 }, 105 }; 106 107 void pci_init_board(void) 108 { 109 immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; 110 sysconf83xx_t *sysconf = &immr->sysconf; 111 law83xx_t *pcie_law = sysconf->pcielaw; 112 struct pci_region *pcie_reg[] = { pcie_regions_0 }; 113 114 fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX, 115 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V); 116 117 /* Deassert the resets in the control register */ 118 out_be32(&sysconf->pecr1, 0xE0008000); 119 udelay(2000); 120 121 /* Configure PCI Express Local Access Windows */ 122 out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR); 123 out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB); 124 125 mpc83xx_pcie_init(1, pcie_reg); 126 } 127 /* 128 * Miscellaneous late-boot configurations 129 * 130 * If a VSC7385 microcode image is present, then upload it. 131 */ 132 int misc_init_r(void) 133 { 134 #ifdef CONFIG_MPC8XXX_SPI 135 immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; 136 sysconf83xx_t *sysconf = &immr->sysconf; 137 138 /* 139 * Set proper bits in SICRH to allow SPI on header J8 140 * 141 * NOTE: this breaks the TSEC2 interface, attached to the Vitesse 142 * switch. The pinmux configuration does not have a fine enough 143 * granularity to support both simultaneously. 144 */ 145 clrsetbits_be32(&sysconf->sicrh, SICRH_GPIO_A_TSEC2, SICRH_GPIO_A_GPIO); 146 puts("WARNING: SPI enabled, TSEC2 support is broken\n"); 147 148 /* Set header J8 SPI chip select output, disabled */ 149 setbits_be32(&immr->gpio[0].dir, SPI_CS_MASK); 150 setbits_be32(&immr->gpio[0].dat, SPI_CS_MASK); 151 #endif 152 153 #ifdef CONFIG_VSC7385_IMAGE 154 if (vsc7385_upload_firmware((void *) CONFIG_VSC7385_IMAGE, 155 CONFIG_VSC7385_IMAGE_SIZE)) { 156 puts("Failure uploading VSC7385 microcode.\n"); 157 return 1; 158 } 159 #endif 160 161 return 0; 162 } 163 #if defined(CONFIG_OF_BOARD_SETUP) 164 int ft_board_setup(void *blob, bd_t *bd) 165 { 166 ft_cpu_setup(blob, bd); 167 fsl_fdt_fixup_dr_usb(blob, bd); 168 fdt_fixup_esdhc(blob, bd); 169 170 return 0; 171 } 172 #endif 173 174 int board_eth_init(bd_t *bis) 175 { 176 int rv, num_if = 0; 177 178 /* Initialize TSECs first */ 179 rv = cpu_eth_init(bis); 180 if (rv >= 0) 181 num_if += rv; 182 else 183 printf("ERROR: failed to initialize TSECs.\n"); 184 185 rv = pci_eth_init(bis); 186 if (rv >= 0) 187 num_if += rv; 188 else 189 printf("ERROR: failed to initialize PCI Ethernet.\n"); 190 191 return num_if; 192 } 193