diff options
Diffstat (limited to 'u-boot/board/freescale/mpc5121ads/mpc5121ads.c')
| -rw-r--r-- | u-boot/board/freescale/mpc5121ads/mpc5121ads.c | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/u-boot/board/freescale/mpc5121ads/mpc5121ads.c b/u-boot/board/freescale/mpc5121ads/mpc5121ads.c new file mode 100644 index 0000000..b356a47 --- /dev/null +++ b/u-boot/board/freescale/mpc5121ads/mpc5121ads.c @@ -0,0 +1,351 @@ +/* + * (C) Copyright 2007-2009 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 <asm/bitops.h> +#include <command.h> +#include <asm/io.h> +#include <asm/processor.h> +#include <asm/mpc512x.h> +#include <fdt_support.h> +#ifdef CONFIG_MISC_INIT_R +#include <i2c.h> +#endif +#include <net.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* Clocks in use */ +#define SCCR1_CLOCKS_EN (CLOCK_SCCR1_CFG_EN | \ + CLOCK_SCCR1_DDR_EN | \ + CLOCK_SCCR1_FEC_EN | \ + CLOCK_SCCR1_LPC_EN | \ + CLOCK_SCCR1_NFC_EN | \ + CLOCK_SCCR1_PATA_EN | \ + CLOCK_SCCR1_PCI_EN | \ + CLOCK_SCCR1_PSC_EN(CONFIG_PSC_CONSOLE) | \ + CLOCK_SCCR1_PSCFIFO_EN | \ + CLOCK_SCCR1_TPR_EN) + +#define SCCR2_CLOCKS_EN (CLOCK_SCCR2_DIU_EN | \ + CLOCK_SCCR2_I2C_EN | \ + CLOCK_SCCR2_MEM_EN | \ + CLOCK_SCCR2_SPDIF_EN | \ + CLOCK_SCCR2_USB1_EN | \ + CLOCK_SCCR2_USB2_EN) + +void __mpc5121_nfc_select_chip(struct mtd_info *mtd, int chip); + +/* Active chip number set in board_nand_select_device() (mpc5121_nfc.c) */ +extern int mpc5121_nfc_chip; + +/* Control chips select signal on MPC5121ADS board */ +void mpc5121_nfc_select_chip(struct mtd_info *mtd, int chip) +{ + unsigned char *csreg = (u8 *)CONFIG_SYS_CPLD_BASE + 0x09; + u8 v; + + v = in_8(csreg); + v |= 0x0F; + + if (chip >= 0) { + __mpc5121_nfc_select_chip(mtd, 0); + v &= ~(1 << mpc5121_nfc_chip); + } else { + __mpc5121_nfc_select_chip(mtd, -1); + } + + out_8(csreg, v); +} + +int board_early_init_f(void) +{ + volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; + u32 spridr; + + /* + * Initialize Local Window for the CPLD registers access (CS2 selects + * the CPLD chip) + */ + out_be32(&im->sysconf.lpcs2aw, + CSAW_START(CONFIG_SYS_CPLD_BASE) | + CSAW_STOP(CONFIG_SYS_CPLD_BASE, CONFIG_SYS_CPLD_SIZE) + ); + out_be32(&im->lpc.cs_cfg[2], CONFIG_SYS_CS2_CFG); + sync_law(&im->sysconf.lpcs2aw); + + /* + * 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_MPC5121ADS_REV2 + out_8((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08), 0xC1); +#else + if (in_8((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08)) & 0x04) { + out_8((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08), 0xC1); + } else { + /* running from Backup flash */ + out_8((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08), 0x32); + } +#endif + /* + * Configure Flash Speed + */ + out_be32(&im->lpc.cs_cfg[0], CONFIG_SYS_CS0_CFG); + + spridr = in_be32(&im->sysconf.spridr); + + if (SVR_MJREV (spridr) >= 2) + out_be32 (&im->lpc.altr, CONFIG_SYS_CS_ALETIMING); + + /* + * Enable clocks + */ + out_be32 (&im->clk.sccr[0], SCCR1_CLOCKS_EN); + out_be32 (&im->clk.sccr[1], SCCR2_CLOCKS_EN); +#if defined(CONFIG_IIM) || defined(CONFIG_CMD_FUSE) + setbits_be32 (&im->clk.sccr[1], CLOCK_SCCR2_IIM_EN); +#endif + + return 0; +} + +int is_micron(void){ + + ushort brd_rev = *(vu_short *)(CONFIG_SYS_CPLD_BASE + 0x00); + uchar macaddr[6]; + u32 brddate, macchk, ismicron; + + /* + * MAC address has serial number with date of manufacture + * Boards made before Nov-08 #1180 use Micron memory; + * 001e59 is the STx vendor # + * Default is Elpida since it works for both but is slightly slower + */ + ismicron = 0; + if (brd_rev >= 0x0400 && eth_getenv_enetaddr("ethaddr", macaddr)) { + brddate = (macaddr[3] << 16) + (macaddr[4] << 8) + macaddr[5]; + macchk = (macaddr[0] << 16) + (macaddr[1] << 8) + macaddr[2]; + debug("brddate = %d\n\t", brddate); + + if (macchk == 0x001e59 && brddate <= 8111180) + ismicron = 1; + } else if (brd_rev < 0x400) { + ismicron = 1; + } + debug("Using %s Memory settings\n\t", + ismicron ? "Micron" : "Elpida"); + return(ismicron); +} + +phys_size_t initdram(int board_type) +{ + u32 msize = 0; + /* + * Elpida MDDRC and initialization settings are an alternative + * to the Default Micron ones for all but the earliest Rev 4 boards + */ + ddr512x_config_t elpida_mddrc_config = { + .ddr_sys_config = CONFIG_SYS_MDDRC_SYS_CFG_ELPIDA, + .ddr_time_config0 = CONFIG_SYS_MDDRC_TIME_CFG0, + .ddr_time_config1 = CONFIG_SYS_MDDRC_TIME_CFG1_ELPIDA, + .ddr_time_config2 = CONFIG_SYS_MDDRC_TIME_CFG2_ELPIDA, + }; + + u32 elpida_init_sequence[] = { + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_PCHG_ALL, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_RFSH, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_RFSH, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_EM2, + CONFIG_SYS_DDRCMD_EM3, + CONFIG_SYS_DDRCMD_EN_DLL, + CONFIG_SYS_ELPIDA_RES_DLL, + CONFIG_SYS_DDRCMD_PCHG_ALL, + CONFIG_SYS_DDRCMD_RFSH, + CONFIG_SYS_DDRCMD_RFSH, + CONFIG_SYS_DDRCMD_RFSH, + CONFIG_SYS_ELPIDA_INIT_DEV_OP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_OCD_DEFAULT, + CONFIG_SYS_ELPIDA_OCD_EXIT, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP, + CONFIG_SYS_DDRCMD_NOP + }; + + if (is_micron()) { + msize = fixed_sdram(NULL, NULL, 0); + } else { + msize = fixed_sdram(&elpida_mddrc_config, + elpida_init_sequence, + sizeof(elpida_init_sequence)/sizeof(u32)); + } + + return msize; +} + +int misc_init_r(void) +{ + u8 tmp_val; + + /* 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); + + return 0; +} + +static iopin_t ioregs_init[] = { + /* FUNC1=FEC_RX_DV Sets Next 3 to FEC pads */ + { + offsetof(struct ioctrl512x, io_control_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 */ + { + offsetof(struct ioctrl512x, io_control_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 */ + { + offsetof(struct ioctrl512x, io_control_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 */ + { + offsetof(struct ioctrl512x, io_control_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 */ + { + offsetof(struct ioctrl512x, io_control_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 */ + { + offsetof(struct ioctrl512x, io_control_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 */ + { + offsetof(struct ioctrl512x, io_control_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 */ + { + offsetof(struct ioctrl512x, io_control_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 */ + { + offsetof(struct ioctrl512x, io_control_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; + u32 spridr = in_be32(&im->sysconf.spridr); + + printf ("Board: MPC5121ADS 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, ARRAY_SIZE(ioregs_init)); + + if (SVR_MJREV (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); +} +#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */ |