[U-Boot-Users] [PATCH] Consolidates ADS5121 IO Pin configuration

Martha Marx
2008-05-29T19:37:21Z

Signed-off-by: Martha Marx <mmarx@silicontkx.com>
---
board/ads5121/Makefile | 2 +-
board/ads5121/ads5121.c | 36 +-------
board/ads5121/iopin.c | 96 ++++++++++++++++++++
board/ads5121/iopin.h | 220 +++++++++++++++++++++++++++++++++++++++++++++
cpu/mpc512x/fec.c | 15 ---
include/configs/ads5121.h | 1 +
6 files changed, 321 insertions(+), 49 deletions(-)
create mode 100644 board/ads5121/iopin.c
create mode 100644 board/ads5121/iopin.h

diff --git a/board/ads5121/Makefile b/board/ads5121/Makefile
index 0e4de61..88da762 100644
--- a/board/ads5121/Makefile
+++ b/board/ads5121/Makefile
@@ -27,7 +27,7 @@ $(shell mkdir -p $(OBJTREE)/board/freescale/common)

LIB = $(obj)lib$(BOARD).a

-COBJS-y := $(BOARD).o
+COBJS-y := $(BOARD).o iopin.o
COBJS-${CONFIG_FSL_DIU_FB} += ads5121_diu.o
COBJS-${CONFIG_FSL_DIU_FB} += ../freescale/common/fsl_diu_fb.o
COBJS-$(CONFIG_PCI) += pci.o
diff --git a/board/ads5121/ads5121.c b/board/ads5121/ads5121.c
index 95559ca..f6649a6 100644
--- a/board/ads5121/ads5121.c
+++ b/board/ads5121/ads5121.c
@@ -47,28 +47,13 @@
#define CSAW_START(start) ((start) & 0xFFFF0000)
#define CSAW_STOP(start, size) (((start) + (size) - 1) >> 16)

-#define MPC5121_IOCTL_PSC6_0 (0x284/4)
-#define MPC5121_IO_DIU_START (0x288/4)
-#define MPC5121_IO_DIU_END (0x2fc/4)
-
-/* Functional pin muxing */
-#define MPC5121_IO_FUNC1 (0 << 7)
-#define MPC5121_IO_FUNC2 (1 << 7)
-#define MPC5121_IO_FUNC3 (2 << 7)
-#define MPC5121_IO_FUNC4 (3 << 7)
-#define MPC5121_IO_ST (1 << 2)
-#define MPC5121_IO_DS_1 (0)
-#define MPC5121_IO_DS_2 (1)
-#define MPC5121_IO_DS_3 (2)
-#define MPC5121_IO_DS_4 (3)
-
long int fixed_sdram(void);
+extern void iopin_initialize(void);

int board_early_init_f (void)
{
volatile immap_t *im = (immap_t *) CFG_IMMR;
u32 lpcaw, tmp32;
- volatile ioctrl512x_t *ioctl = &(im->io_ctrl);
int i;

/*
@@ -114,16 +99,6 @@ int board_early_init_f (void)
im->clk.sccr[0] = SCCR1_CLOCKS_EN;
im->clk.sccr[1] = SCCR2_CLOCKS_EN;

- /* Configure DIU clock pin */
- tmp32 = ioctl->regs[MPC5121_IOCTL_PSC6_0];
- tmp32 &= ~0x1ff;
- tmp32 |= MPC5121_IO_FUNC3 | MPC5121_IO_DS_4;
- ioctl->regs[MPC5121_IOCTL_PSC6_0] = tmp32;
-
- /* Initialize IO pins (pin mux) for DIU function */
- for (i = MPC5121_IO_DIU_START; i < MPC5121_IO_DIU_END; i++)
- ioctl->regs[i] |= (MPC5121_IO_FUNC3 | MPC5121_IO_DS_4);
-
return 0;
}

@@ -265,17 +240,12 @@ int checkboard (void)
{
ushort brd_rev = *(vu_short *) (CFG_CPLD_BASE + 0x00);
uchar cpld_rev = *(vu_char *) (CFG_CPLD_BASE + 0x02);
- volatile immap_t *im = (immap_t *) CFG_IMMR;
- volatile unsigned long *reg;
- int i;

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();

- /* change the slew rate on all pata pins to max */
- reg = (unsigned long *) &(im->io_ctrl.regs[PATA_CE1_IDX]);
- for (i = 0; i < 9; i++)
- reg[i] |= 0x00000003;
return 0;
}

diff --git a/board/ads5121/iopin.c b/board/ads5121/iopin.c
new file mode 100644
index 0000000..6a35c81
--- /dev/null
+++ b/board/ads5121/iopin.c
@@ -0,0 +1,96 @@
+/*
+ * (C) Copyright 2008
+ * Martha J Marx, Silicon Turnkey Express, mmarx@silicontkx.com
+ * mpc512x I/O pin/pad initialization for the ADS5121 board
+ * 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 <linux/types.h>
+#include "iopin.h"
+
+/*
+ * IO PAD TYPES
+ * for all types fmux is used to select the funtion
+ * ds sets the slew rate
+ * STD pins nothing extra (can set ds & fmux only)
+ * STD_PU pue=1 to enable pull & pud sets whether up or down resistors
+ * STD_ST st sets the Schmitt trigger
+ * STD_PU_ST pue & pud sets pull-up/down resistors as in STD_PU
+ * st sets the Schmitt trigger
+ * PCI hold sets output delay
+ * PCI_ST hold sets output delay and st sets the Schmitt trigger
+ */
+
+static struct iopin_t {
+ u_short p_offset; /* offset from IOCTL_MEM_OFFSET */
+ u_short p_no; /* number of pins to set this way */
+ u_short bit_or:7; /* Do bitwise OR instead of setting */
+ u_short fmux:2; /* pad function select 0-3 */
+ u_short hold:2; /* PCI pad types only; */
+ u_short pud:1; /* pull resistor; PU types only; */
+ /* if pue=1 then 0=pull-down, 1=pull-up */
+ u_short pue:1; /* Pull resistor enable; _PU types only */
+ u_short st:1; /* Schmitt trigger enable; _ST types only */
+ u_short ds:2; /* Slew rate class, 0=class1, ..., 3=class4 */
+} ioregs_init[] = {
+/* FUNC1=FEC_RX_DV Sets Next 3 to FEC pads */
+ {IOCTL_SPDIF_TXCLK, 3, 0, 1, 0, 0, 0, 0, 3},
+/* Set highest Slew on 9 PATA pins */
+ {IOCTL_PATA_CE1, 9, 1, 0, 0, 0, 0, 0, 3},
+/* FUNC1=FEC_COL Sets Next 15 to FEC pads */
+ {IOCTL_PSC0_0, 15, 0, 1, 0, 0, 0, 0, 3},
+/* FUNC1=SPDIF_TXCLK */
+ {IOCTL_LPC_CS1, 1, 0, 1, 0, 0, 0, 1, 3},
+/* FUNC2=SPDIF_TX and sets Next pin to SPDIF_RX */
+ {IOCTL_I2C1_SCL, 2, 0, 2, 0, 0, 0, 1, 3},
+/* FUNC2=DIU CLK */
+ {IOCTL_PSC6_0, 1, 0, 2, 0, 0, 0, 1, 3},
+/* FUNC2=DIU_HSYNC */
+ {IOCTL_PSC6_1, 1, 0, 2, 0, 0, 0, 0, 3},
+/* FUNC2=DIUVSYNC Sets Next 26 to DIU Pads */
+ {IOCTL_PSC6_4, 26, 0, 2, 0, 0, 0, 0, 3}
+};
+
+void iopin_initialize(void)
+{
+ short i, j, n, p;
+ u_long *reg;
+
+ if (sizeof(ioregs_init) == 0)
+ return;
+
+ immap_t *im = (immap_t *)CFG_IMMR;
+ reg = (u_long *)&(im->io_ctrl.regs[0]);
+ n = sizeof(ioregs_init) / sizeof(ioregs_init[0]);
+
+ for (i = 0; i < n; i++) {
+ for (p = 0, j = ioregs_init[i].p_offset / sizeof(u_long);
+ p < ioregs_init[i].p_no; p++, j++) {
+ /* lowest 9 bits sets the register */
+ if (ioregs_init[i].bit_or)
+ reg[j] |= *((u_long *) &ioregs_init[i].p_no)
+ & 0x000001ff;
+ else
+ reg[j] = *((u_long *) &ioregs_init[i].p_no)
+ & 0x000001ff;
+ }
+ }
+ return;
+}
diff --git a/board/ads5121/iopin.h b/board/ads5121/iopin.h
new file mode 100644
index 0000000..73003e5
--- /dev/null
+++ b/board/ads5121/iopin.h
@@ -0,0 +1,220 @@
+/*
+ * (C) Copyright 2008
+ * Martha J Marx, Silicon Turnkey Express, mmarx@silicontkx.com
+ * mpc512x I/O pin/pad initialization for the ADS5121 board
+ * 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
+ */
+
+#define IOCTL_MEM 0x000
+#define IOCTL_GP 0x004
+#define IOCTL_LPC_CLK 0x008
+#define IOCTL_LPC_OE 0x00C
+#define IOCTL_LPC_RWB 0x010
+#define IOCTL_LPC_ACK 0x014
+#define IOCTL_LPC_CS0 0x018
+#define IOCTL_NFC_CE0 0x01C
+#define IOCTL_LPC_CS1 0x020
+#define IOCTL_LPC_CS2 0x024
+#define IOCTL_LPC_AX03 0x028
+#define IOCTL_EMB_AX02 0x02C
+#define IOCTL_EMB_AX01 0x030
+#define IOCTL_EMB_AX00 0x034
+#define IOCTL_EMB_AD31 0x038
+#define IOCTL_EMB_AD30 0x03C
+#define IOCTL_EMB_AD29 0x040
+#define IOCTL_EMB_AD28 0x044
+#define IOCTL_EMB_AD27 0x048
+#define IOCTL_EMB_AD26 0x04C
+#define IOCTL_EMB_AD25 0x050
+#define IOCTL_EMB_AD24 0x054
+#define IOCTL_EMB_AD23 0x058
+#define IOCTL_EMB_AD22 0x05C
+#define IOCTL_EMB_AD21 0x060
+#define IOCTL_EMB_AD20 0x064
+#define IOCTL_EMB_AD19 0x068
+#define IOCTL_EMB_AD18 0x06C
+#define IOCTL_EMB_AD17 0x070
+#define IOCTL_EMB_AD16 0x074
+#define IOCTL_EMB_AD15 0x078
+#define IOCTL_EMB_AD14 0x07C
+#define IOCTL_EMB_AD13 0x080
+#define IOCTL_EMB_AD12 0x084
+#define IOCTL_EMB_AD11 0x088
+#define IOCTL_EMB_AD10 0x08C
+#define IOCTL_EMB_AD09 0x090
+#define IOCTL_EMB_AD08 0x094
+#define IOCTL_EMB_AD07 0x098
+#define IOCTL_EMB_AD06 0x09C
+#define IOCTL_EMB_AD05 0x0A0
+#define IOCTL_EMB_AD04 0x0A4
+#define IOCTL_EMB_AD03 0x0A8
+#define IOCTL_EMB_AD02 0x0AC
+#define IOCTL_EMB_AD01 0x0B0
+#define IOCTL_EMB_AD00 0x0B4
+#define IOCTL_PATA_CE1 0x0B8
+#define IOCTL_PATA_CE2 0x0BC
+#define IOCTL_PATA_ISOLATE 0x0C0
+#define IOCTL_PATA_IOR 0x0C4
+#define IOCTL_PATA_IOW 0x0C8
+#define IOCTL_PATA_IOCHRDY 0x0CC
+#define IOCTL_PATA_INTRQ 0x0D0
+#define IOCTL_PATA_DRQ 0x0D4
+#define IOCTL_PATA_DACK 0x0D8
+#define IOCTL_NFC_WP 0x0DC
+#define IOCTL_NFC_RB 0x0E0
+#define IOCTL_NFC_ALE 0x0E4
+#define IOCTL_NFC_CLE 0x0E8
+#define IOCTL_NFC_WE 0x0EC
+#define IOCTL_NFC_RE 0x0F0
+#define IOCTL_PCI_AD31 0x0F4
+#define IOCTL_PCI_AD30 0x0F8
+#define IOCTL_PCI_AD29 0x0FC
+#define IOCTL_PCI_AD28 0x100
+#define IOCTL_PCI_AD27 0x104
+#define IOCTL_PCI_AD26 0x108
+#define IOCTL_PCI_AD25 0x10C
+#define IOCTL_PCI_AD24 0x110
+#define IOCTL_PCI_AD23 0x114
+#define IOCTL_PCI_AD22 0x118
+#define IOCTL_PCI_AD21 0x11C
+#define IOCTL_PCI_AD20 0x120
+#define IOCTL_PCI_AD19 0x124
+#define IOCTL_PCI_AD18 0x128
+#define IOCTL_PCI_AD17 0x12C
+#define IOCTL_PCI_AD16 0x130
+#define IOCTL_PCI_AD15 0x134
+#define IOCTL_PCI_AD14 0x138
+#define IOCTL_PCI_AD13 0x13C
+#define IOCTL_PCI_AD12 0x140
+#define IOCTL_PCI_AD11 0x144
+#define IOCTL_PCI_AD10 0x148
+#define IOCTL_PCI_AD09 0x14C
+#define IOCTL_PCI_AD08 0x150
+#define IOCTL_PCI_AD07 0x154
+#define IOCTL_PCI_AD06 0x158
+#define IOCTL_PCI_AD05 0x15C
+#define IOCTL_PCI_AD04 0x160
+#define IOCTL_PCI_AD03 0x164
+#define IOCTL_PCI_AD02 0x168
+#define IOCTL_PCI_AD01 0x16C
+#define IOCTL_PCI_AD00 0x170
+#define IOCTL_PCI_CBE0 0x174
+#define IOCTL_PCI_CBE1 0x178
+#define IOCTL_PCI_CBE2 0x17C
+#define IOCTL_PCI_CBE3 0x180
+#define IOCTL_PCI_GNT2 0x184
+#define IOCTL_PCI_REQ2 0x188
+#define IOCTL_PCI_GNT1 0x18C
+#define IOCTL_PCI_REQ1 0x190
+#define IOCTL_PCI_GNT0 0x194
+#define IOCTL_PCI_REQ0 0x198
+#define IOCTL_PCI_INTA 0x19C
+#define IOCTL_PCI_CLK 0x1A0
+#define IOCTL_PCI_RST_OUT 0x1A4
+#define IOCTL_PCI_FRAME 0x1A8
+#define IOCTL_PCI_IDSEL 0x1AC
+#define IOCTL_PCI_DEVSEL 0x1B0
+#define IOCTL_PCI_IRDY 0x1B4
+#define IOCTL_PCI_TRDY 0x1B8
+#define IOCTL_PCI_STOP 0x1BC
+#define IOCTL_PCI_PAR 0x1C0
+#define IOCTL_PCI_PERR 0x1C4
+#define IOCTL_PCI_SERR 0x1C8
+#define IOCTL_SPDIF_TXCLK 0x1CC
+#define IOCTL_SPDIF_TX 0x1D0
+#define IOCTL_SPDIF_RX 0x1D4
+#define IOCTL_I2C0_SCL 0x1D8
+#define IOCTL_I2C0_SDA 0x1DC
+#define IOCTL_I2C1_SCL 0x1E0
+#define IOCTL_I2C1_SDA 0x1E4
+#define IOCTL_I2C2_SCL 0x1E8
+#define IOCTL_I2C2_SDA 0x1EC
+#define IOCTL_IRQ0 0x1F0
+#define IOCTL_IRQ1 0x1F4
+#define IOCTL_CAN1_TX 0x1F8
+#define IOCTL_CAN2_TX 0x1FC
+#define IOCTL_J1850_TX 0x200
+#define IOCTL_J1850_RX 0x204
+#define IOCTL_PSC_MCLK_IN 0x208
+#define IOCTL_PSC0_0 0x20C
+#define IOCTL_PSC0_1 0x210
+#define IOCTL_PSC0_2 0x214
+#define IOCTL_PSC0_3 0x218
+#define IOCTL_PSC0_4 0x21C
+#define IOCTL_PSC1_0 0x220
+#define IOCTL_PSC1_1 0x224
+#define IOCTL_PSC1_2 0x228
+#define IOCTL_PSC1_3 0x22C
+#define IOCTL_PSC1_4 0x230
+#define IOCTL_PSC2_0 0x234
+#define IOCTL_PSC2_1 0x238
+#define IOCTL_PSC2_2 0x23C
+#define IOCTL_PSC2_3 0x240
+#define IOCTL_PSC2_4 0x244
+#define IOCTL_PSC3_0 0x248
+#define IOCTL_PSC3_1 0x24C
+#define IOCTL_PSC3_2 0x250
+#define IOCTL_PSC3_3 0x254
+#define IOCTL_PSC3_4 0x258
+#define IOCTL_PSC4_0 0x25C
+#define IOCTL_PSC4_1 0x260
+#define IOCTL_PSC4_2 0x264
+#define IOCTL_PSC4_3 0x268
+#define IOCTL_PSC4_4 0x26C
+#define IOCTL_PSC5_0 0x270
+#define IOCTL_PSC5_1 0x274
+#define IOCTL_PSC5_2 0x278
+#define IOCTL_PSC5_3 0x27C
+#define IOCTL_PSC5_4 0x280
+#define IOCTL_PSC6_0 0x284
+#define IOCTL_PSC6_1 0x288
+#define IOCTL_PSC6_2 0x28C
+#define IOCTL_PSC6_3 0x290
+#define IOCTL_PSC6_4 0x294
+#define IOCTL_PSC7_0 0x298
+#define IOCTL_PSC7_1 0x29C
+#define IOCTL_PSC7_2 0x2A0
+#define IOCTL_PSC7_3 0x2A4
+#define IOCTL_PSC7_4 0x2A8
+#define IOCTL_PSC8_0 0x2AC
+#define IOCTL_PSC8_1 0x2B0
+#define IOCTL_PSC8_2 0x2B4
+#define IOCTL_PSC8_3 0x2B8
+#define IOCTL_PSC8_4 0x2BC
+#define IOCTL_PSC9_0 0x2C0
+#define IOCTL_PSC9_1 0x2C4
+#define IOCTL_PSC9_2 0x2C8
+#define IOCTL_PSC9_3 0x2CC
+#define IOCTL_PSC9_4 0x2D0
+#define IOCTL_PSC10_0 0x2D4
+#define IOCTL_PSC10_1 0x2D8
+#define IOCTL_PSC10_2 0x2DC
+#define IOCTL_PSC10_3 0x2E0
+#define IOCTL_PSC10_4 0x2E4
+#define IOCTL_PSC11_0 0x2E8
+#define IOCTL_PSC11_1 0x2EC
+#define IOCTL_PSC11_2 0x2F0
+#define IOCTL_PSC11_3 0x2F4
+#define IOCTL_PSC11_4 0x2F8
+#define IOCTL_HRESET 0x2FC
+#define IOCTL_SRESET 0x300
+#define IOCTL_CKSTP_OUT 0x304
+#define IOCTL_USB2_VBUS_PWR_FAULT 0x308
+#define IOCTL_USB2_VBUS_PWR_SELECT 0x30C
+#define IOCTL_USB2_PHY_DRVV_BUS 0x310
diff --git a/cpu/mpc512x/fec.c b/cpu/mpc512x/fec.c
index c226a8a..e9df7de 100644
--- a/cpu/mpc512x/fec.c
+++ b/cpu/mpc512x/fec.c
@@ -604,13 +604,10 @@ static int mpc512x_fec_recv (struct eth_device *dev)
/********************************************************************/
int mpc512x_fec_initialize (bd_t * bis)
{
-
- immap_t *im = (immap_t*) CFG_IMMR;
mpc512x_fec_priv *fec;
struct eth_device *dev;
int i;
char *tmp, *end, env_enetaddr[6];
- uint32 *reg;
void * bd;

fec = (mpc512x_fec_priv *) malloc (sizeof(*fec));
@@ -639,18 +636,6 @@ int mpc512x_fec_initialize (bd_t * bis)
fec512x_miiphy_read, fec512x_miiphy_write);
#endif

- /*
- * Initialize I\O pins
- */
- reg = (uint32 *) &(im->io_ctrl.regs[PSC0_0_IDX]);
-
- for (i = 0; i < 15; i++)
- reg[i] = IOCTRL_MUX_FEC | 0x00000001;
-
- im->io_ctrl.regs[SPDIF_TXCLOCK_IDX] = IOCTRL_MUX_FEC | 0x00000001;
- im->io_ctrl.regs[SPDIF_TX_IDX] = IOCTRL_MUX_FEC | 0x00000001;
- im->io_ctrl.regs[SPDIF_RX_IDX] = IOCTRL_MUX_FEC | 0x00000001;
-
/* Clean up space FEC's MIB and FIFO RAM ...*/
memset ((void *) MPC512X_FEC + 0x200, 0x00, 0x400);

diff --git a/include/configs/ads5121.h b/include/configs/ads5121.h
index ae98359..50b3512 100644
--- a/include/configs/ads5121.h
+++ b/include/configs/ads5121.h
@@ -27,6 +27,7 @@
#ifndef __CONFIG_H
#define __CONFIG_H

+#define CONFIG_ADS5121 1
/*
* Memory map for the ADS5121 board:
*
--
1.5.2.4