| /* |
| * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> |
| * |
| * Parts are shamelessly stolen from various TI sources, original copyright |
| * follows: |
| * ----------------------------------------------------------------- |
| * |
| * Copyright (C) 2004 Texas Instruments. |
| * |
| * ---------------------------------------------------------------------------- |
| * 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> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| extern void timer_init(void); |
| extern int eth_hw_init(void); |
| |
| |
| /* 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 */ |
| if ( (id == DAVINCI_LPSC_VPSSSLV) || |
| (id == DAVINCI_LPSC_EMAC) || |
| (id == DAVINCI_LPSC_EMAC_WRAPPER) || |
| (id == DAVINCI_LPSC_MDIO) || |
| (id == DAVINCI_LPSC_USB) || |
| (id == DAVINCI_LPSC_ATA) || |
| (id == DAVINCI_LPSC_VLYNQ) || |
| (id == DAVINCI_LPSC_UHPI) || |
| (id == DAVINCI_LPSC_DDR_EMIF) || |
| (id == DAVINCI_LPSC_AEMIF) || |
| (id == DAVINCI_LPSC_MMC_SD) || |
| (id == DAVINCI_LPSC_MEMSTICK) || |
| (id == DAVINCI_LPSC_McBSP) || |
| (id == DAVINCI_LPSC_GPIO) |
| ) |
| *mdctl |= 0x200; |
| |
| REG(PSC_PTCMD) = 0x01; |
| |
| while (REG(PSC_PTSTAT) & 0x03) {;} |
| while ((*mdstat & 0x1f) != 0x03) {;} /* Probably an overkill... */ |
| } |
| |
| 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; |
| } |
| |
| |
| int board_init(void) |
| { |
| /* arch number of the board */ |
| gd->bd->bi_arch_number = MACH_TYPE_SCHMOOGIE; |
| |
| /* 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); |
| |
| /* Powerup the DSP */ |
| dsp_on(); |
| |
| /* 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); |
| } |
| |
| int misc_init_r (void) |
| { |
| u_int8_t tmp[20], buf[10]; |
| int i = 0; |
| int clk = 0; |
| |
| /* Set serial number from UID chip */ |
| u_int8_t crc_tbl[256] = { |
| 0x00, 0x5e, 0xbc, 0xe2, 0x61, 0x3f, 0xdd, 0x83, |
| 0xc2, 0x9c, 0x7e, 0x20, 0xa3, 0xfd, 0x1f, 0x41, |
| 0x9d, 0xc3, 0x21, 0x7f, 0xfc, 0xa2, 0x40, 0x1e, |
| 0x5f, 0x01, 0xe3, 0xbd, 0x3e, 0x60, 0x82, 0xdc, |
| 0x23, 0x7d, 0x9f, 0xc1, 0x42, 0x1c, 0xfe, 0xa0, |
| 0xe1, 0xbf, 0x5d, 0x03, 0x80, 0xde, 0x3c, 0x62, |
| 0xbe, 0xe0, 0x02, 0x5c, 0xdf, 0x81, 0x63, 0x3d, |
| 0x7c, 0x22, 0xc0, 0x9e, 0x1d, 0x43, 0xa1, 0xff, |
| 0x46, 0x18, 0xfa, 0xa4, 0x27, 0x79, 0x9b, 0xc5, |
| 0x84, 0xda, 0x38, 0x66, 0xe5, 0xbb, 0x59, 0x07, |
| 0xdb, 0x85, 0x67, 0x39, 0xba, 0xe4, 0x06, 0x58, |
| 0x19, 0x47, 0xa5, 0xfb, 0x78, 0x26, 0xc4, 0x9a, |
| 0x65, 0x3b, 0xd9, 0x87, 0x04, 0x5a, 0xb8, 0xe6, |
| 0xa7, 0xf9, 0x1b, 0x45, 0xc6, 0x98, 0x7a, 0x24, |
| 0xf8, 0xa6, 0x44, 0x1a, 0x99, 0xc7, 0x25, 0x7b, |
| 0x3a, 0x64, 0x86, 0xd8, 0x5b, 0x05, 0xe7, 0xb9, |
| 0x8c, 0xd2, 0x30, 0x6e, 0xed, 0xb3, 0x51, 0x0f, |
| 0x4e, 0x10, 0xf2, 0xac, 0x2f, 0x71, 0x93, 0xcd, |
| 0x11, 0x4f, 0xad, 0xf3, 0x70, 0x2e, 0xcc, 0x92, |
| 0xd3, 0x8d, 0x6f, 0x31, 0xb2, 0xec, 0x0e, 0x50, |
| 0xaf, 0xf1, 0x13, 0x4d, 0xce, 0x90, 0x72, 0x2c, |
| 0x6d, 0x33, 0xd1, 0x8f, 0x0c, 0x52, 0xb0, 0xee, |
| 0x32, 0x6c, 0x8e, 0xd0, 0x53, 0x0d, 0xef, 0xb1, |
| 0xf0, 0xae, 0x4c, 0x12, 0x91, 0xcf, 0x2d, 0x73, |
| 0xca, 0x94, 0x76, 0x28, 0xab, 0xf5, 0x17, 0x49, |
| 0x08, 0x56, 0xb4, 0xea, 0x69, 0x37, 0xd5, 0x8b, |
| 0x57, 0x09, 0xeb, 0xb5, 0x36, 0x68, 0x8a, 0xd4, |
| 0x95, 0xcb, 0x29, 0x77, 0xf4, 0xaa, 0x48, 0x16, |
| 0xe9, 0xb7, 0x55, 0x0b, 0x88, 0xd6, 0x34, 0x6a, |
| 0x2b, 0x75, 0x97, 0xc9, 0x4a, 0x14, 0xf6, 0xa8, |
| 0x74, 0x2a, 0xc8, 0x96, 0x15, 0x4b, 0xa9, 0xf7, |
| 0xb6, 0xe8, 0x0a, 0x54, 0xd7, 0x89, 0x6b, 0x35 |
| }; |
| |
| 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)); |
| |
| /* Set serial number from UID chip */ |
| if (i2c_read(CFG_UID_ADDR, 0, 1, buf, 8)) { |
| printf("\nUID @ 0x%02x read FAILED!!!\n", CFG_UID_ADDR); |
| forceenv("serial#", "FAILED"); |
| } else { |
| if (buf[0] != 0x70) { /* Device Family Code */ |
| printf("\nUID @ 0x%02x read FAILED!!!\n", CFG_UID_ADDR); |
| forceenv("serial#", "FAILED"); |
| } |
| } |
| /* Now check CRC */ |
| tmp[0] = 0; |
| for (i = 0; i < 8; i++) |
| tmp[0] = crc_tbl[tmp[0] ^ buf[i]]; |
| |
| if (tmp[0] != 0) { |
| printf("\nUID @ 0x%02x - BAD CRC!!!\n", CFG_UID_ADDR); |
| forceenv("serial#", "FAILED"); |
| } else { |
| /* CRC OK, set "serial" env variable */ |
| sprintf((char *)&tmp[0], "%02x%02x%02x%02x%02x%02x", |
| buf[6], buf[5], buf[4], buf[3], buf[2], buf[1]); |
| forceenv("serial#", (char *)&tmp[0]); |
| } |
| |
| if (!eth_hw_init()) |
| printf("ethernet init failed!\n"); |
| |
| 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); |
| } |