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-rw-r--r--board/ads5121/ads5121.c432
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diff --git a/board/ads5121/ads5121.c b/board/ads5121/ads5121.c
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-/*
- * (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
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* 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_PATA_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 *) CONFIG_SYS_IMMR;
- u32 lpcaw;
-
- /*
- * Initialize Local Window for the CPLD registers access (CS2 selects
- * the CPLD chip)
- */
- im->sysconf.lpcs2aw = CSAW_START(CONFIG_SYS_CPLD_BASE) |
- CSAW_STOP(CONFIG_SYS_CPLD_BASE, CONFIG_SYS_CPLD_SIZE);
- im->lpc.cs_cfg[2] = CONFIG_SYS_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 *)(CONFIG_SYS_CPLD_BASE + 0x08)) = 0xC1;
-#else
- if (*((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08)) & 0x04) {
- *((volatile u8 *)(CONFIG_SYS_CPLD_BASE + 0x08)) = 0xC1;
- } else {
- /* running from Backup flash */
- *((volatile u8 *)(CONFIG_SYS_CPLD_BASE + 0x08)) = 0x32;
- }
-#endif
- /*
- * Configure Flash Speed
- */
- *((volatile u32 *)(CONFIG_SYS_IMMR + LPC_OFFSET + CS0_CONFIG)) = CONFIG_SYS_CS0_CFG;
- if (SVR_MJREV (im->sysconf.spridr) >= 2) {
- *((volatile u32 *)(CONFIG_SYS_IMMR + LPC_OFFSET + CS_ALE_TIMING_CONFIG)) = CONFIG_SYS_CS_ALETIMING;
- }
- /*
- * Enable clocks
- */
- im->clk.sccr[0] = SCCR1_CLOCKS_EN;
- im->clk.sccr[1] = SCCR2_CLOCKS_EN;
-#if defined(CONFIG_IIM) || defined(CONFIG_CMD_FUSE)
- im->clk.sccr[1] |= CLOCK_SCCR2_IIM_EN;
-#endif
-
- 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 *) CONFIG_SYS_IMMR;
- u32 msize = CONFIG_SYS_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 = CONFIG_SYS_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 = CONFIG_SYS_MDDRC_SYS_CFG_EN;
-
- /* Initialize DDR Priority Manager */
- im->mddrc.prioman_config1 = CONFIG_SYS_MDDRCGRP_PM_CFG1;
- im->mddrc.prioman_config2 = CONFIG_SYS_MDDRCGRP_PM_CFG2;
- im->mddrc.hiprio_config = CONFIG_SYS_MDDRCGRP_HIPRIO_CFG;
- im->mddrc.lut_table0_main_upper = CONFIG_SYS_MDDRCGRP_LUT0_MU;
- im->mddrc.lut_table0_main_lower = CONFIG_SYS_MDDRCGRP_LUT0_ML;
- im->mddrc.lut_table1_main_upper = CONFIG_SYS_MDDRCGRP_LUT1_MU;
- im->mddrc.lut_table1_main_lower = CONFIG_SYS_MDDRCGRP_LUT1_ML;
- im->mddrc.lut_table2_main_upper = CONFIG_SYS_MDDRCGRP_LUT2_MU;
- im->mddrc.lut_table2_main_lower = CONFIG_SYS_MDDRCGRP_LUT2_ML;
- im->mddrc.lut_table3_main_upper = CONFIG_SYS_MDDRCGRP_LUT3_MU;
- im->mddrc.lut_table3_main_lower = CONFIG_SYS_MDDRCGRP_LUT3_ML;
- im->mddrc.lut_table4_main_upper = CONFIG_SYS_MDDRCGRP_LUT4_MU;
- im->mddrc.lut_table4_main_lower = CONFIG_SYS_MDDRCGRP_LUT4_ML;
- im->mddrc.lut_table0_alternate_upper = CONFIG_SYS_MDDRCGRP_LUT0_AU;
- im->mddrc.lut_table0_alternate_lower = CONFIG_SYS_MDDRCGRP_LUT0_AL;
- im->mddrc.lut_table1_alternate_upper = CONFIG_SYS_MDDRCGRP_LUT1_AU;
- im->mddrc.lut_table1_alternate_lower = CONFIG_SYS_MDDRCGRP_LUT1_AL;
- im->mddrc.lut_table2_alternate_upper = CONFIG_SYS_MDDRCGRP_LUT2_AU;
- im->mddrc.lut_table2_alternate_lower = CONFIG_SYS_MDDRCGRP_LUT2_AL;
- im->mddrc.lut_table3_alternate_upper = CONFIG_SYS_MDDRCGRP_LUT3_AU;
- im->mddrc.lut_table3_alternate_lower = CONFIG_SYS_MDDRCGRP_LUT3_AL;
- im->mddrc.lut_table4_alternate_upper = CONFIG_SYS_MDDRCGRP_LUT4_AU;
- im->mddrc.lut_table4_alternate_lower = CONFIG_SYS_MDDRCGRP_LUT4_AL;
-
- /* Initialize MDDRC */
- im->mddrc.ddr_sys_config = CONFIG_SYS_MDDRC_SYS_CFG;
- im->mddrc.ddr_time_config0 = CONFIG_SYS_MDDRC_TIME_CFG0;
- im->mddrc.ddr_time_config1 = CONFIG_SYS_MDDRC_TIME_CFG1;
- im->mddrc.ddr_time_config2 = CONFIG_SYS_MDDRC_TIME_CFG2;
-
- /* Initialize DDR */
- for (i = 0; i < 10; i++)
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
-
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_PCHG_ALL;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_RFSH;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_RFSH;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_INIT_DEV_OP;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_EM2;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_PCHG_ALL;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_EM2;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_EM3;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_EN_DLL;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_INIT_DEV_OP;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_PCHG_ALL;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_RFSH;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_INIT_DEV_OP;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_OCD_DEFAULT;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_PCHG_ALL;
- im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP;
-
- /* Start MDDRC */
- im->mddrc.ddr_time_config0 = CONFIG_SYS_MDDRC_TIME_CFG0_RUN;
- im->mddrc.ddr_sys_config = CONFIG_SYS_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)
- }
-};
-
-static iopin_t rev2_silicon_pci_ioregs_init[] = {
- /* FUNC0=PCI Sets next 54 to PCI pads */
- {
- IOCTL_PCI_AD31, 54, 0,
- IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_DS(0)
- }
-};
-
-int checkboard (void)
-{
- ushort brd_rev = *(vu_short *) (CONFIG_SYS_CPLD_BASE + 0x00);
- uchar cpld_rev = *(vu_char *) (CONFIG_SYS_CPLD_BASE + 0x02);
- volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
-
- 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]));
- if (SVR_MJREV (im->sysconf.spridr) >= 2) {
- iopin_initialize(rev2_silicon_pci_ioregs_init, 1);
- }
-
- 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) */
-
-#if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_RESET)
-
-void init_ide_reset (void)
-{
- volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
- debug ("init_ide_reset\n");
-
- /*
- * Clear the reset bit to reset the interface
- * cf. RefMan MPC5121EE: 28.4.1 Resetting the ATA Bus
- */
- immr->pata.pata_ata_control = 0;
- udelay(100);
- /* Assert the reset bit to enable the interface */
- immr->pata.pata_ata_control = FSL_ATA_CTRL_ATA_RST_B;
- udelay(100);
-
-}
-
-void ide_set_reset (int idereset)
-{
- volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
- debug ("ide_set_reset(%d)\n", idereset);
-
- if (idereset) {
- immr->pata.pata_ata_control = 0;
- udelay(100);
- } else {
- immr->pata.pata_ata_control = FSL_ATA_CTRL_ATA_RST_B;
- udelay(100);
- }
-}
-
-#define CALC_TIMING(t) (t + period - 1) / period
-
-int ide_preinit (void)
-{
- volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
- long t;
- const struct {
- short t0;
- short t1;
- short t2_8;
- short t2_16;
- short t2i;
- short t4;
- short t9;
- short tA;
- } pio_specs = {
- .t0 = 600,
- .t1 = 70,
- .t2_8 = 290,
- .t2_16 = 165,
- .t2i = 0,
- .t4 = 30,
- .t9 = 20,
- .tA = 50,
- };
- union {
- u32 config;
- struct {
- u8 field1;
- u8 field2;
- u8 field3;
- u8 field4;
- }bytes;
- }cfg;
-
- debug ("IDE preinit using PATA peripheral at IMMR-ADDR %08x\n",
- (u32)&immr->pata);
-
- /* Set the reset bit to 1 to enable the interface */
- immr->pata.pata_ata_control = FSL_ATA_CTRL_ATA_RST_B;
-
- /* Init timings : we use PIO mode 0 timings */
- t = 1000000000 / gd->ips_clk; /* period in ns */
- cfg.bytes.field1 = 3;
- cfg.bytes.field2 = 3;
- cfg.bytes.field3 = (pio_specs.t1 + t) / t;
- cfg.bytes.field4 = (pio_specs.t2_8 + t) / t;
-
- immr->pata.pata_time1 = cfg.config;
-
- cfg.bytes.field1 = (pio_specs.t2_8 + t) / t;
- cfg.bytes.field2 = (pio_specs.tA + t) / t + 2;
- cfg.bytes.field3 = 1;
- cfg.bytes.field4 = (pio_specs.t4 + t) / t;
-
- immr->pata.pata_time2 = cfg.config;
-
- cfg.config = immr->pata.pata_time3;
- cfg.bytes.field1 = (pio_specs.t9 + t) / t;
-
- immr->pata.pata_time3 = cfg.config;
- debug ("PATA preinit complete.\n");
-
- return 0;
-}
-
-#endif /* defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_RESET) */
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