| /* |
| * (C) Copyright 2007 DENX Software Engineering |
| * |
| * 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., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| * |
| */ |
| |
| #include <common.h> |
| #include <mpc512x.h> |
| #include <asm/bitops.h> |
| #include <command.h> |
| #include <asm/processor.h> |
| #include <fdt_support.h> |
| #ifdef CONFIG_MISC_INIT_R |
| #include <i2c.h> |
| #endif |
| |
| /* Clocks in use */ |
| #define SCCR1_CLOCKS_EN (CLOCK_SCCR1_CFG_EN | \ |
| CLOCK_SCCR1_LPC_EN | \ |
| CLOCK_SCCR1_PSC_EN(CONFIG_PSC_CONSOLE) | \ |
| CLOCK_SCCR1_PSCFIFO_EN | \ |
| CLOCK_SCCR1_DDR_EN | \ |
| CLOCK_SCCR1_FEC_EN | \ |
| CLOCK_SCCR1_PCI_EN | \ |
| CLOCK_SCCR1_TPR_EN) |
| |
| #define SCCR2_CLOCKS_EN (CLOCK_SCCR2_MEM_EN | \ |
| CLOCK_SCCR2_SPDIF_EN | \ |
| CLOCK_SCCR2_DIU_EN | \ |
| CLOCK_SCCR2_I2C_EN) |
| |
| #define CSAW_START(start) ((start) & 0xFFFF0000) |
| #define CSAW_STOP(start, size) (((start) + (size) - 1) >> 16) |
| |
| long int fixed_sdram(void); |
| |
| int board_early_init_f (void) |
| { |
| volatile immap_t *im = (immap_t *) CFG_IMMR; |
| u32 lpcaw; |
| |
| /* |
| * Initialize Local Window for the CPLD registers access (CS2 selects |
| * the CPLD chip) |
| */ |
| im->sysconf.lpcs2aw = CSAW_START(CFG_CPLD_BASE) | |
| CSAW_STOP(CFG_CPLD_BASE, CFG_CPLD_SIZE); |
| im->lpc.cs_cfg[2] = CFG_CS2_CFG; |
| |
| /* |
| * According to MPC5121e RM, configuring local access windows should |
| * be followed by a dummy read of the config register that was |
| * modified last and an isync |
| */ |
| lpcaw = im->sysconf.lpcs2aw; |
| __asm__ __volatile__ ("isync"); |
| |
| /* |
| * Disable Boot NOR FLASH write protect - CPLD Reg 8 NOR FLASH Control |
| * |
| * Without this the flash identification routine fails, as it needs to issue |
| * write commands in order to establish the device ID. |
| */ |
| |
| #ifdef CONFIG_ADS5121_REV2 |
| *((volatile u8 *)(CFG_CPLD_BASE + 0x08)) = 0xC1; |
| #else |
| if (*((u8 *)(CFG_CPLD_BASE + 0x08)) & 0x04) { |
| *((volatile u8 *)(CFG_CPLD_BASE + 0x08)) = 0xC1; |
| } else { |
| /* running from Backup flash */ |
| *((volatile u8 *)(CFG_CPLD_BASE + 0x08)) = 0x32; |
| } |
| #endif |
| /* |
| * Configure Flash Speed |
| */ |
| *((volatile u32 *)(CFG_IMMR + LPC_OFFSET + CS0_CONFIG)) = CFG_CS0_CFG; |
| if (SVR_MJREV (im->sysconf.spridr) >= 2) { |
| *((volatile u32 *)(CFG_IMMR + LPC_OFFSET + CS_ALE_TIMING_CONFIG)) = CFG_CS_ALETIMING; |
| } |
| /* |
| * Enable clocks |
| */ |
| im->clk.sccr[0] = SCCR1_CLOCKS_EN; |
| im->clk.sccr[1] = SCCR2_CLOCKS_EN; |
| |
| return 0; |
| } |
| |
| phys_size_t initdram (int board_type) |
| { |
| u32 msize = 0; |
| |
| msize = fixed_sdram (); |
| |
| return msize; |
| } |
| |
| /* |
| * fixed sdram init -- the board doesn't use memory modules that have serial presence |
| * detect or similar mechanism for discovery of the DRAM settings |
| */ |
| long int fixed_sdram (void) |
| { |
| volatile immap_t *im = (immap_t *) CFG_IMMR; |
| u32 msize = CFG_DDR_SIZE * 1024 * 1024; |
| u32 msize_log2 = __ilog2 (msize); |
| u32 i; |
| |
| /* Initialize IO Control */ |
| im->io_ctrl.regs[IOCTL_MEM/4] = IOCTRL_MUX_DDR; |
| |
| /* Initialize DDR Local Window */ |
| im->sysconf.ddrlaw.bar = CFG_DDR_BASE & 0xFFFFF000; |
| im->sysconf.ddrlaw.ar = msize_log2 - 1; |
| |
| /* |
| * According to MPC5121e RM, configuring local access windows should |
| * be followed by a dummy read of the config register that was |
| * modified last and an isync |
| */ |
| i = im->sysconf.ddrlaw.ar; |
| __asm__ __volatile__ ("isync"); |
| |
| /* Enable DDR */ |
| im->mddrc.ddr_sys_config = CFG_MDDRC_SYS_CFG_EN; |
| |
| /* Initialize DDR Priority Manager */ |
| im->mddrc.prioman_config1 = CFG_MDDRCGRP_PM_CFG1; |
| im->mddrc.prioman_config2 = CFG_MDDRCGRP_PM_CFG2; |
| im->mddrc.hiprio_config = CFG_MDDRCGRP_HIPRIO_CFG; |
| im->mddrc.lut_table0_main_upper = CFG_MDDRCGRP_LUT0_MU; |
| im->mddrc.lut_table0_main_lower = CFG_MDDRCGRP_LUT0_ML; |
| im->mddrc.lut_table1_main_upper = CFG_MDDRCGRP_LUT1_MU; |
| im->mddrc.lut_table1_main_lower = CFG_MDDRCGRP_LUT1_ML; |
| im->mddrc.lut_table2_main_upper = CFG_MDDRCGRP_LUT2_MU; |
| im->mddrc.lut_table2_main_lower = CFG_MDDRCGRP_LUT2_ML; |
| im->mddrc.lut_table3_main_upper = CFG_MDDRCGRP_LUT3_MU; |
| im->mddrc.lut_table3_main_lower = CFG_MDDRCGRP_LUT3_ML; |
| im->mddrc.lut_table4_main_upper = CFG_MDDRCGRP_LUT4_MU; |
| im->mddrc.lut_table4_main_lower = CFG_MDDRCGRP_LUT4_ML; |
| im->mddrc.lut_table0_alternate_upper = CFG_MDDRCGRP_LUT0_AU; |
| im->mddrc.lut_table0_alternate_lower = CFG_MDDRCGRP_LUT0_AL; |
| im->mddrc.lut_table1_alternate_upper = CFG_MDDRCGRP_LUT1_AU; |
| im->mddrc.lut_table1_alternate_lower = CFG_MDDRCGRP_LUT1_AL; |
| im->mddrc.lut_table2_alternate_upper = CFG_MDDRCGRP_LUT2_AU; |
| im->mddrc.lut_table2_alternate_lower = CFG_MDDRCGRP_LUT2_AL; |
| im->mddrc.lut_table3_alternate_upper = CFG_MDDRCGRP_LUT3_AU; |
| im->mddrc.lut_table3_alternate_lower = CFG_MDDRCGRP_LUT3_AL; |
| im->mddrc.lut_table4_alternate_upper = CFG_MDDRCGRP_LUT4_AU; |
| im->mddrc.lut_table4_alternate_lower = CFG_MDDRCGRP_LUT4_AL; |
| |
| /* Initialize MDDRC */ |
| im->mddrc.ddr_sys_config = CFG_MDDRC_SYS_CFG; |
| im->mddrc.ddr_time_config0 = CFG_MDDRC_TIME_CFG0; |
| im->mddrc.ddr_time_config1 = CFG_MDDRC_TIME_CFG1; |
| im->mddrc.ddr_time_config2 = CFG_MDDRC_TIME_CFG2; |
| |
| /* Initialize DDR */ |
| for (i = 0; i < 10; i++) |
| im->mddrc.ddr_command = CFG_MICRON_NOP; |
| |
| im->mddrc.ddr_command = CFG_MICRON_PCHG_ALL; |
| im->mddrc.ddr_command = CFG_MICRON_NOP; |
| im->mddrc.ddr_command = CFG_MICRON_RFSH; |
| im->mddrc.ddr_command = CFG_MICRON_NOP; |
| im->mddrc.ddr_command = CFG_MICRON_RFSH; |
| im->mddrc.ddr_command = CFG_MICRON_NOP; |
| im->mddrc.ddr_command = CFG_MICRON_INIT_DEV_OP; |
| im->mddrc.ddr_command = CFG_MICRON_NOP; |
| im->mddrc.ddr_command = CFG_MICRON_EM2; |
| im->mddrc.ddr_command = CFG_MICRON_NOP; |
| im->mddrc.ddr_command = CFG_MICRON_PCHG_ALL; |
| im->mddrc.ddr_command = CFG_MICRON_EM2; |
| im->mddrc.ddr_command = CFG_MICRON_EM3; |
| im->mddrc.ddr_command = CFG_MICRON_EN_DLL; |
| im->mddrc.ddr_command = CFG_MICRON_INIT_DEV_OP; |
| im->mddrc.ddr_command = CFG_MICRON_PCHG_ALL; |
| im->mddrc.ddr_command = CFG_MICRON_RFSH; |
| im->mddrc.ddr_command = CFG_MICRON_INIT_DEV_OP; |
| im->mddrc.ddr_command = CFG_MICRON_OCD_DEFAULT; |
| im->mddrc.ddr_command = CFG_MICRON_PCHG_ALL; |
| im->mddrc.ddr_command = CFG_MICRON_NOP; |
| |
| /* Start MDDRC */ |
| im->mddrc.ddr_time_config0 = CFG_MDDRC_TIME_CFG0_RUN; |
| im->mddrc.ddr_sys_config = CFG_MDDRC_SYS_CFG_RUN; |
| |
| return msize; |
| } |
| |
| int misc_init_r(void) |
| { |
| u8 tmp_val; |
| extern int ads5121_diu_init(void); |
| |
| /* Using this for DIU init before the driver in linux takes over |
| * Enable the TFP410 Encoder (I2C address 0x38) |
| */ |
| |
| i2c_set_bus_num(2); |
| tmp_val = 0xBF; |
| i2c_write(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val)); |
| /* Verify if enabled */ |
| tmp_val = 0; |
| i2c_read(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val)); |
| debug("DVI Encoder Read: 0x%02lx\n", tmp_val); |
| |
| tmp_val = 0x10; |
| i2c_write(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val)); |
| /* Verify if enabled */ |
| tmp_val = 0; |
| i2c_read(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val)); |
| debug("DVI Encoder Read: 0x%02lx\n", tmp_val); |
| |
| #ifdef CONFIG_FSL_DIU_FB |
| #if !(defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)) |
| ads5121_diu_init(); |
| #endif |
| #endif |
| |
| return 0; |
| } |
| static iopin_t ioregs_init[] = { |
| /* FUNC1=FEC_RX_DV Sets Next 3 to FEC pads */ |
| { |
| IOCTL_SPDIF_TXCLK, 3, 0, |
| IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) | |
| IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3) |
| }, |
| /* Set highest Slew on 9 PATA pins */ |
| { |
| IOCTL_PATA_CE1, 9, 1, |
| IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) | |
| IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3) |
| }, |
| /* FUNC1=FEC_COL Sets Next 15 to FEC pads */ |
| { |
| IOCTL_PSC0_0, 15, 0, |
| IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) | |
| IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3) |
| }, |
| /* FUNC1=SPDIF_TXCLK */ |
| { |
| IOCTL_LPC_CS1, 1, 0, |
| IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) | |
| IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3) |
| }, |
| /* FUNC2=SPDIF_TX and sets Next pin to SPDIF_RX */ |
| { |
| IOCTL_I2C1_SCL, 2, 0, |
| IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) | |
| IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3) |
| }, |
| /* FUNC2=DIU CLK */ |
| { |
| IOCTL_PSC6_0, 1, 0, |
| IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) | |
| IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3) |
| }, |
| /* FUNC2=DIU_HSYNC */ |
| { |
| IOCTL_PSC6_1, 1, 0, |
| IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) | |
| IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3) |
| }, |
| /* FUNC2=DIUVSYNC Sets Next 26 to DIU Pads */ |
| { |
| IOCTL_PSC6_4, 26, 0, |
| IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) | |
| IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3) |
| } |
| }; |
| |
| int checkboard (void) |
| { |
| ushort brd_rev = *(vu_short *) (CFG_CPLD_BASE + 0x00); |
| uchar cpld_rev = *(vu_char *) (CFG_CPLD_BASE + 0x02); |
| |
| printf ("Board: ADS5121 rev. 0x%04x (CPLD rev. 0x%02x)\n", |
| brd_rev, cpld_rev); |
| /* initialize function mux & slew rate IO inter alia on IO Pins */ |
| |
| |
| iopin_initialize(ioregs_init, sizeof(ioregs_init) / sizeof(ioregs_init[0])); |
| |
| return 0; |
| } |
| |
| #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) |
| void ft_board_setup(void *blob, bd_t *bd) |
| { |
| ft_cpu_setup(blob, bd); |
| fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize); |
| } |
| #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */ |