| /* |
| * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> |
| * |
| * Copyright (C) 2008 Lyrtech <www.lyrtech.com> |
| * Copyright (C) 2008 Philip Balister, OpenSDR <philip@opensdr.com> |
| * |
| * Parts are shamelessly stolen from various TI sources, original copyright |
| * follows: |
| * |
| * Copyright (C) 2004 Texas Instruments. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #include <common.h> |
| #include <i2c.h> |
| #include <asm/arch/hardware.h> |
| #include <asm/arch/emac_defs.h> |
| |
| #define DAVINCI_A3CR (0x01E00014) /* EMIF-A CS3 config register. */ |
| #define DAVINCI_A3CR_VAL (0x3FFFFFFD) /* EMIF-A CS3 value for FPGA. */ |
| |
| #define INTEGRITY_SYSCFG_OFFSET 0x7E8 |
| #define INTEGRITY_CHECKWORD_OFFSET 0x7F8 |
| #define INTEGRITY_CHECKWORD_VALUE 0x10ADBEEF |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| extern void timer_init(void); |
| extern int eth_hw_init(void); |
| extern phy_t phy; |
| |
| |
| /* Works on Always On power domain only (no PD argument) */ |
| void lpsc_on(unsigned int id) |
| { |
| dv_reg_p mdstat, mdctl; |
| |
| if (id >= DAVINCI_LPSC_GEM) |
| return; /* Don't work on DSP Power Domain */ |
| |
| mdstat = REG_P(PSC_MDSTAT_BASE + (id * 4)); |
| mdctl = REG_P(PSC_MDCTL_BASE + (id * 4)); |
| |
| while (REG(PSC_PTSTAT) & 0x01); |
| |
| if ((*mdstat & 0x1f) == 0x03) |
| return; /* Already on and enabled */ |
| |
| *mdctl |= 0x03; |
| |
| /* Special treatment for some modules as for sprue14 p.7.4.2 */ |
| switch (id) { |
| case DAVINCI_LPSC_VPSSSLV: |
| case DAVINCI_LPSC_EMAC: |
| case DAVINCI_LPSC_EMAC_WRAPPER: |
| case DAVINCI_LPSC_MDIO: |
| case DAVINCI_LPSC_USB: |
| case DAVINCI_LPSC_ATA: |
| case DAVINCI_LPSC_VLYNQ: |
| case DAVINCI_LPSC_UHPI: |
| case DAVINCI_LPSC_DDR_EMIF: |
| case DAVINCI_LPSC_AEMIF: |
| case DAVINCI_LPSC_MMC_SD: |
| case DAVINCI_LPSC_MEMSTICK: |
| case DAVINCI_LPSC_McBSP: |
| case DAVINCI_LPSC_GPIO: |
| *mdctl |= 0x200; |
| break; |
| } |
| |
| REG(PSC_PTCMD) = 0x01; |
| |
| while (REG(PSC_PTSTAT) & 0x03); |
| while ((*mdstat & 0x1f) != 0x03); /* Probably an overkill... */ |
| } |
| |
| #if !defined(CFG_USE_DSPLINK) |
| void dsp_on(void) |
| { |
| int i; |
| |
| if (REG(PSC_PDSTAT1) & 0x1f) |
| return; /* Already on */ |
| |
| REG(PSC_GBLCTL) |= 0x01; |
| REG(PSC_PDCTL1) |= 0x01; |
| REG(PSC_PDCTL1) &= ~0x100; |
| REG(PSC_MDCTL_BASE + (DAVINCI_LPSC_GEM * 4)) |= 0x03; |
| REG(PSC_MDCTL_BASE + (DAVINCI_LPSC_GEM * 4)) &= 0xfffffeff; |
| REG(PSC_MDCTL_BASE + (DAVINCI_LPSC_IMCOP * 4)) |= 0x03; |
| REG(PSC_MDCTL_BASE + (DAVINCI_LPSC_IMCOP * 4)) &= 0xfffffeff; |
| REG(PSC_PTCMD) = 0x02; |
| |
| for (i = 0; i < 100; i++) { |
| if (REG(PSC_EPCPR) & 0x02) |
| break; |
| } |
| |
| REG(PSC_CHP_SHRTSW) = 0x01; |
| REG(PSC_PDCTL1) |= 0x100; |
| REG(PSC_EPCCR) = 0x02; |
| |
| for (i = 0; i < 100; i++) { |
| if (!(REG(PSC_PTSTAT) & 0x02)) |
| break; |
| } |
| |
| REG(PSC_GBLCTL) &= ~0x1f; |
| } |
| #endif /* CFG_USE_DSPLINK */ |
| |
| int board_init(void) |
| { |
| /* arch number of the board */ |
| gd->bd->bi_arch_number = MACH_TYPE_SFFSDR; |
| |
| /* address of boot parameters */ |
| gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; |
| |
| /* Workaround for TMS320DM6446 errata 1.3.22 */ |
| REG(PSC_SILVER_BULLET) = 0; |
| |
| /* Power on required peripherals */ |
| lpsc_on(DAVINCI_LPSC_EMAC); |
| lpsc_on(DAVINCI_LPSC_EMAC_WRAPPER); |
| lpsc_on(DAVINCI_LPSC_MDIO); |
| lpsc_on(DAVINCI_LPSC_I2C); |
| lpsc_on(DAVINCI_LPSC_UART0); |
| lpsc_on(DAVINCI_LPSC_TIMER1); |
| lpsc_on(DAVINCI_LPSC_GPIO); |
| |
| #if !defined(CFG_USE_DSPLINK) |
| /* Powerup the DSP */ |
| dsp_on(); |
| #endif /* CFG_USE_DSPLINK */ |
| |
| /* Bringup UART0 out of reset */ |
| REG(UART0_PWREMU_MGMT) = 0x0000e003; |
| |
| /* Enable GIO3.3V cells used for EMAC */ |
| REG(VDD3P3V_PWDN) = 0; |
| |
| /* Enable UART0 MUX lines */ |
| REG(PINMUX1) |= 1; |
| |
| /* Enable EMAC and AEMIF pins */ |
| REG(PINMUX0) = 0x80000c1f; |
| |
| /* Enable I2C pin Mux */ |
| REG(PINMUX1) |= (1 << 7); |
| |
| /* Set the Bus Priority Register to appropriate value */ |
| REG(VBPR) = 0x20; |
| |
| timer_init(); |
| |
| return(0); |
| } |
| |
| /* Read ethernet MAC address from Integrity data structure inside EEPROM. */ |
| int read_mac_address(uint8_t *buf) |
| { |
| u_int32_t value, mac[2], address; |
| |
| /* Read Integrity data structure checkword. */ |
| if (i2c_read(CFG_I2C_EEPROM_ADDR, INTEGRITY_CHECKWORD_OFFSET, |
| CFG_I2C_EEPROM_ADDR_LEN, (uint8_t *) &value, 4)) |
| goto err; |
| if (value != INTEGRITY_CHECKWORD_VALUE) |
| return 1; |
| |
| /* Read SYSCFG structure offset. */ |
| if (i2c_read(CFG_I2C_EEPROM_ADDR, INTEGRITY_SYSCFG_OFFSET, |
| CFG_I2C_EEPROM_ADDR_LEN, (uint8_t *) &value, 4)) |
| goto err; |
| address = 0x800 + (int) value; /* Address of SYSCFG structure. */ |
| |
| /* Read NET CONFIG structure offset. */ |
| if (i2c_read(CFG_I2C_EEPROM_ADDR, address, |
| CFG_I2C_EEPROM_ADDR_LEN, (uint8_t *) &value, 4)) |
| goto err; |
| address = 0x800 + (int) value; /* Address of NET CONFIG structure. */ |
| address += 12; /* Address of NET INTERFACE CONFIG structure. */ |
| |
| /* Read NET INTERFACE CONFIG 2 structure offset. */ |
| if (i2c_read(CFG_I2C_EEPROM_ADDR, address, |
| CFG_I2C_EEPROM_ADDR_LEN, (uint8_t *) &value, 4)) |
| goto err; |
| address = 0x800 + 16 + (int) value; /* Address of NET INTERFACE |
| * CONFIG 2 structure. */ |
| |
| /* Read MAC address. */ |
| if (i2c_read(CFG_I2C_EEPROM_ADDR, address, |
| CFG_I2C_EEPROM_ADDR_LEN, (uint8_t *) &mac[0], 8)) |
| goto err; |
| |
| buf[0] = mac[0] >> 24; |
| buf[1] = mac[0] >> 16; |
| buf[2] = mac[0] >> 8; |
| buf[3] = mac[0]; |
| buf[4] = mac[1] >> 24; |
| buf[5] = mac[1] >> 16; |
| |
| return 0; |
| |
| err: |
| printf("Read from EEPROM @ 0x%02x failed\n", CFG_I2C_EEPROM_ADDR); |
| return 1; |
| } |
| |
| /* Platform dependent initialisation. */ |
| int misc_init_r(void) |
| { |
| int i; |
| u_int8_t i2cbuf; |
| u_int8_t env_enetaddr[6], eeprom_enetaddr[6]; |
| char *tmp = getenv("ethaddr"); |
| char *end; |
| int clk; |
| |
| /* EMIF-A CS3 configuration for FPGA. */ |
| REG(DAVINCI_A3CR) = DAVINCI_A3CR_VAL; |
| |
| clk = ((REG(PLL2_PLLM) + 1) * 27) / ((REG(PLL2_DIV2) & 0x1f) + 1); |
| |
| printf("ARM Clock: %dMHz\n", ((REG(PLL1_PLLM) + 1) * 27) / 2); |
| printf("DDR Clock: %dMHz\n", (clk / 2)); |
| |
| /* Configure I2C switch (PCA9543) to enable channel 0. */ |
| i2cbuf = CFG_I2C_PCA9543_ENABLE_CH0; |
| if (i2c_write(CFG_I2C_PCA9543_ADDR, 0, |
| CFG_I2C_PCA9543_ADDR_LEN, &i2cbuf, 1)) { |
| printf("Write to MUX @ 0x%02x failed\n", CFG_I2C_PCA9543_ADDR); |
| return 1; |
| } |
| |
| /* Read Ethernet MAC address from the U-Boot environment. */ |
| for (i = 0; i < 6; i++) { |
| env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0; |
| if (tmp) |
| tmp = (*end) ? end+1 : end; |
| } |
| |
| /* Read Ethernet MAC address from EEPROM. */ |
| if (read_mac_address(eeprom_enetaddr) == 0) { |
| if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6) != 0 && |
| memcmp(env_enetaddr, eeprom_enetaddr, 6) != 0) { |
| printf("\nWarning: MAC addresses don't match:\n"); |
| printf("\tHW MAC address: " |
| "%02X:%02X:%02X:%02X:%02X:%02X\n", |
| eeprom_enetaddr[0], eeprom_enetaddr[1], |
| eeprom_enetaddr[2], eeprom_enetaddr[3], |
| eeprom_enetaddr[4], eeprom_enetaddr[5]); |
| printf("\t\"ethaddr\" value: " |
| "%02X:%02X:%02X:%02X:%02X:%02X\n", |
| env_enetaddr[0], env_enetaddr[1], |
| env_enetaddr[2], env_enetaddr[3], |
| env_enetaddr[4], env_enetaddr[5]) ; |
| debug("### Set MAC addr from environment\n"); |
| memcpy(eeprom_enetaddr, env_enetaddr, 6); |
| } |
| if (!tmp) { |
| char ethaddr[20]; |
| |
| sprintf(ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X", |
| eeprom_enetaddr[0], eeprom_enetaddr[1], |
| eeprom_enetaddr[2], eeprom_enetaddr[3], |
| eeprom_enetaddr[4], eeprom_enetaddr[5]) ; |
| debug("### Set environment from HW MAC addr = \"%s\"\n", |
| ethaddr); |
| setenv("ethaddr", ethaddr); |
| } |
| } |
| |
| if (!eth_hw_init()) { |
| printf("Ethernet init failed\n"); |
| } else { |
| printf("ETH PHY: %s\n", phy.name); |
| } |
| |
| /* On this platform, U-Boot is copied in RAM by the UBL, |
| * so we are always in the relocated state. */ |
| gd->flags |= GD_FLG_RELOC; |
| |
| return(0); |
| } |
| |
| int dram_init(void) |
| { |
| gd->bd->bi_dram[0].start = PHYS_SDRAM_1; |
| gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; |
| |
| return(0); |
| } |