2 * (C) Copyright 2007-2009 DENX Software Engineering
4 * See file CREDITS for list of people who contributed to this
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include <asm/bitops.h>
28 #include <asm/processor.h>
29 #include <asm/mpc512x.h>
30 #include <fdt_support.h>
31 #ifdef CONFIG_MISC_INIT_R
35 #include <linux/mtd/mtd.h>
36 #include <linux/mtd/nand.h>
38 DECLARE_GLOBAL_DATA_PTR;
41 #define SCCR1_CLOCKS_EN (CLOCK_SCCR1_CFG_EN | \
42 CLOCK_SCCR1_DDR_EN | \
43 CLOCK_SCCR1_FEC_EN | \
44 CLOCK_SCCR1_LPC_EN | \
45 CLOCK_SCCR1_NFC_EN | \
46 CLOCK_SCCR1_PATA_EN | \
47 CLOCK_SCCR1_PCI_EN | \
48 CLOCK_SCCR1_PSC_EN(CONFIG_PSC_CONSOLE) | \
49 CLOCK_SCCR1_PSCFIFO_EN | \
52 #define SCCR2_CLOCKS_EN (CLOCK_SCCR2_DIU_EN | \
53 CLOCK_SCCR2_I2C_EN | \
54 CLOCK_SCCR2_MEM_EN | \
57 void __mpc5121_nfc_select_chip(struct mtd_info *mtd, int chip);
59 /* Active chip number set in board_nand_select_device() (mpc5121_nfc.c) */
60 extern int mpc5121_nfc_chip;
62 /* Control chips select signal on MPC5121ADS board */
63 void mpc5121_nfc_select_chip(struct mtd_info *mtd, int chip)
65 unsigned char *csreg = (u8 *)CONFIG_SYS_CPLD_BASE + 0x09;
72 __mpc5121_nfc_select_chip(mtd, 0);
73 v &= ~(1 << mpc5121_nfc_chip);
75 __mpc5121_nfc_select_chip(mtd, -1);
81 int board_early_init_f(void)
83 volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
87 * Initialize Local Window for the CPLD registers access (CS2 selects
90 out_be32(&im->sysconf.lpcs2aw,
91 CSAW_START(CONFIG_SYS_CPLD_BASE) |
92 CSAW_STOP(CONFIG_SYS_CPLD_BASE, CONFIG_SYS_CPLD_SIZE)
94 out_be32(&im->lpc.cs_cfg[2], CONFIG_SYS_CS2_CFG);
95 sync_law(&im->sysconf.lpcs2aw);
98 * Disable Boot NOR FLASH write protect - CPLD Reg 8 NOR FLASH Control
100 * Without this the flash identification routine fails, as it needs to issue
101 * write commands in order to establish the device ID.
104 #ifdef CONFIG_ADS5121_REV2
105 out_8((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08), 0xC1);
107 if (in_8((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08)) & 0x04) {
108 out_8((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08), 0xC1);
110 /* running from Backup flash */
111 out_8((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08), 0x32);
115 * Configure Flash Speed
117 out_be32(&im->lpc.cs_cfg[0], CONFIG_SYS_CS0_CFG);
119 spridr = in_be32(&im->sysconf.spridr);
121 if (SVR_MJREV (spridr) >= 2)
122 out_be32 (&im->lpc.altr, CONFIG_SYS_CS_ALETIMING);
127 out_be32 (&im->clk.sccr[0], SCCR1_CLOCKS_EN);
128 out_be32 (&im->clk.sccr[1], SCCR2_CLOCKS_EN);
129 #if defined(CONFIG_IIM) || defined(CONFIG_CMD_FUSE)
130 setbits_be32 (&im->clk.sccr[1], CLOCK_SCCR2_IIM_EN);
136 phys_size_t initdram(int board_type)
140 msize = fixed_sdram(NULL, NULL, 0);
145 int misc_init_r(void)
149 /* Using this for DIU init before the driver in linux takes over
150 * Enable the TFP410 Encoder (I2C address 0x38)
155 i2c_write(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val));
156 /* Verify if enabled */
158 i2c_read(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val));
159 debug("DVI Encoder Read: 0x%02lx\n", tmp_val);
162 i2c_write(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val));
163 /* Verify if enabled */
165 i2c_read(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val));
166 debug("DVI Encoder Read: 0x%02lx\n", tmp_val);
168 #ifdef CONFIG_FSL_DIU_FB
169 # if !(defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE))
176 static iopin_t ioregs_init[] = {
177 /* FUNC1=FEC_RX_DV Sets Next 3 to FEC pads */
179 offsetof(struct ioctrl512x, io_control_spdif_txclk), 3, 0,
180 IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
181 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
183 /* Set highest Slew on 9 PATA pins */
185 offsetof(struct ioctrl512x, io_control_pata_ce1), 9, 1,
186 IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
187 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
189 /* FUNC1=FEC_COL Sets Next 15 to FEC pads */
191 offsetof(struct ioctrl512x, io_control_psc0_0), 15, 0,
192 IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
193 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
195 /* FUNC1=SPDIF_TXCLK */
197 offsetof(struct ioctrl512x, io_control_lpc_cs1), 1, 0,
198 IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
199 IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3)
201 /* FUNC2=SPDIF_TX and sets Next pin to SPDIF_RX */
203 offsetof(struct ioctrl512x, io_control_i2c1_scl), 2, 0,
204 IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
205 IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3)
209 offsetof(struct ioctrl512x, io_control_psc6_0), 1, 0,
210 IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
211 IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3)
213 /* FUNC2=DIU_HSYNC */
215 offsetof(struct ioctrl512x, io_control_psc6_1), 1, 0,
216 IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
217 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
219 /* FUNC2=DIUVSYNC Sets Next 26 to DIU Pads */
221 offsetof(struct ioctrl512x, io_control_psc6_4), 26, 0,
222 IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
223 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
227 static iopin_t rev2_silicon_pci_ioregs_init[] = {
228 /* FUNC0=PCI Sets next 54 to PCI pads */
230 offsetof(struct ioctrl512x, io_control_pci_ad31), 54, 0,
231 IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_DS(0)
235 int checkboard (void)
237 ushort brd_rev = *(vu_short *) (CONFIG_SYS_CPLD_BASE + 0x00);
238 uchar cpld_rev = *(vu_char *) (CONFIG_SYS_CPLD_BASE + 0x02);
239 volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
240 u32 spridr = in_be32(&im->sysconf.spridr);
242 printf ("Board: ADS5121 rev. 0x%04x (CPLD rev. 0x%02x)\n",
245 /* initialize function mux & slew rate IO inter alia on IO Pins */
246 iopin_initialize(ioregs_init, ARRAY_SIZE(ioregs_init));
248 if (SVR_MJREV (spridr) >= 2)
249 iopin_initialize(rev2_silicon_pci_ioregs_init, 1);
254 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
255 void ft_board_setup(void *blob, bd_t *bd)
257 ft_cpu_setup(blob, bd);
258 fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
260 #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */