top.c
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/*
* (C) Copyright 2008 Stefan Roese <sr@denx.de>, DENX Software Engineering
*
* Copyright (C) 2006 Micronas GmbH
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include "vct.h"
typedef union _TOP_PINMUX_t
{
u32 reg;
struct {
u32 res : 24; /* reserved */
u32 drive : 2; /* Driver strength */
u32 slew : 1; /* Slew rate */
u32 strig : 1; /* Schmitt trigger input*/
u32 pu_pd : 2; /* Pull up/ pull down */
u32 funsel : 2; /* Pin function */
} Bits;
} TOP_PINMUX_t;
#if defined(CONFIG_VCT_PREMIUM) || defined(CONFIG_VCT_PLATINUM)
static TOP_PINMUX_t top_read_pin(int pin)
{
TOP_PINMUX_t reg;
switch (pin) {
case 2:
case 3:
case 6:
case 9:
reg.reg = 0xdeadbeef;
break;
case 4:
reg.reg = reg_read(FWSRAM_TOP_SCL_CFG(FWSRAM_BASE));
break;
case 5:
reg.reg = reg_read(FWSRAM_TOP_SDA_CFG(FWSRAM_BASE));
break;
case 7:
reg.reg = reg_read(FWSRAM_TOP_TDO_CFG(FWSRAM_BASE));
break;
case 8:
reg.reg = reg_read(FWSRAM_TOP_GPIO2_0_CFG(FWSRAM_BASE));
break;
case 10:
case 11:
case 12:
case 13:
case 14:
case 15:
case 16:
reg.reg = reg_read(FWSRAM_BASE + FWSRAM_TOP_GPIO2_1_CFG_OFFS +
((pin - 10) * 4));
break;
default:
reg.reg = reg_read(TOP_BASE + (pin * 4));
break;
}
return reg;
}
static void top_write_pin(int pin, TOP_PINMUX_t reg)
{
switch (pin) {
case 4:
reg_write(FWSRAM_TOP_SCL_CFG(FWSRAM_BASE), reg.reg);
break;
case 5:
reg_write(FWSRAM_TOP_SDA_CFG(FWSRAM_BASE), reg.reg);
break;
case 7:
reg_write(FWSRAM_TOP_TDO_CFG(FWSRAM_BASE), reg.reg);
break;
case 8:
reg_write(FWSRAM_TOP_GPIO2_0_CFG(FWSRAM_BASE), reg.reg);
break;
case 10:
case 11:
case 12:
case 13:
case 14:
case 15:
case 16:
reg_write(FWSRAM_BASE + FWSRAM_TOP_GPIO2_1_CFG_OFFS +
((pin - 10) * 4), reg.reg);
break;
default:
reg_write(TOP_BASE + (pin * 4), reg.reg);
break;
}
}
int top_set_pin(int pin, int func)
{
TOP_PINMUX_t reg;
/* check global range */
if ((pin < 0) || (pin > 170) || (func < 0) || (func > 3))
return -1; /* pin number or function out of valid range */
/* check undefined values; */
if ((pin == 2) || (pin == 3) || (pin == 6) || (pin == 9))
return -1; /* pin number out of valid range */
reg = top_read_pin(pin);
reg.Bits.funsel = func;
top_write_pin(pin, reg);
return 0;
}
#endif
#if defined(CONFIG_VCT_PLATINUMAVC)
int top_set_pin(int pin, int func)
{
TOP_PINMUX_t reg;
/* check global range */
if ((pin < 0) || (pin > 158))
return -1; /* pin number or function out of valid range */
reg.reg = reg_read(TOP_BASE + (pin * 4));
reg.Bits.funsel = func;
reg_write(TOP_BASE + (pin * 4), reg.reg);
return 0;
}
#endif
void vct_pin_mux_initialize(void)
{
#if defined(CONFIG_VCT_PREMIUM) || defined(CONFIG_VCT_PLATINUM)
top_set_pin(34, 01); /* EBI_CS0 */
top_set_pin(33, 01); /* EBI_CS1 */
top_set_pin(32, 01); /* EBI_CS2 */
top_set_pin(100, 02); /* EBI_CS3 */
top_set_pin(101, 02); /* EBI_CS4 */
top_set_pin(102, 02); /* EBI_CS5 */
top_set_pin(103, 02); /* EBI_CS6 */
top_set_pin(104, 02); /* EBI_CS7 top_set_pin(104,03); EBI_GENIO3 */
top_set_pin(35, 01); /* EBI_ALE */
top_set_pin(36, 01); /* EBI_ADDR15 */
top_set_pin(37, 01); /* EBI_ADDR14 top_set_pin(78,03); EBI_ADDR14 */
top_set_pin(38, 01); /* EBI_ADDR13 */
top_set_pin(39, 01); /* EBI_ADDR12 */
top_set_pin(40, 01); /* EBI_ADDR11 */
top_set_pin(41, 01); /* EBI_ADDR10 */
top_set_pin(42, 01); /* EBI_ADDR9 */
top_set_pin(43, 01); /* EBI_ADDR8 */
top_set_pin(44, 01); /* EBI_ADDR7 */
top_set_pin(45, 01); /* EBI_ADDR6 */
top_set_pin(46, 01); /* EBI_ADDR5 */
top_set_pin(47, 01); /* EBI_ADDR4 */
top_set_pin(48, 01); /* EBI_ADDR3 */
top_set_pin(49, 01); /* EBI_ADDR2 */
top_set_pin(50, 01); /* EBI_ADDR1 */
top_set_pin(51, 01); /* EBI_ADDR0 */
top_set_pin(52, 01); /* EBI_DIR */
top_set_pin(53, 01); /* EBI_DAT15 top_set_pin(81,01); EBI_DAT15 */
top_set_pin(54, 01); /* EBI_DAT14 top_set_pin(82,01); EBI_DAT14 */
top_set_pin(55, 01); /* EBI_DAT13 top_set_pin(83,01); EBI_DAT13 */
top_set_pin(56, 01); /* EBI_DAT12 top_set_pin(84,01); EBI_DAT12 */
top_set_pin(57, 01); /* EBI_DAT11 top_set_pin(85,01); EBI_DAT11 */
top_set_pin(58, 01); /* EBI_DAT10 top_set_pin(86,01); EBI_DAT10 */
top_set_pin(59, 01); /* EBI_DAT9 top_set_pin(87,01); EBI_DAT9 */
top_set_pin(60, 01); /* EBI_DAT8 top_set_pin(88,01); EBI_DAT8 */
top_set_pin(61, 01); /* EBI_DAT7 */
top_set_pin(62, 01); /* EBI_DAT6 */
top_set_pin(63, 01); /* EBI_DAT5 */
top_set_pin(64, 01); /* EBI_DAT4 */
top_set_pin(65, 01); /* EBI_DAT3 */
top_set_pin(66, 01); /* EBI_DAT2 */
top_set_pin(67, 01); /* EBI_DAT1 */
top_set_pin(68, 01); /* EBI_DAT0 */
top_set_pin(69, 01); /* EBI_IORD */
top_set_pin(70, 01); /* EBI_IOWR */
top_set_pin(71, 01); /* EBI_WE */
top_set_pin(72, 01); /* EBI_OE */
top_set_pin(73, 01); /* EBI_IORDY */
top_set_pin(95, 02); /* EBI_EBI_DMACK*/
top_set_pin(112, 02); /* EBI_IRQ0 */
top_set_pin(111, 02); /* EBI_IRQ1 top_set_pin(111,03); EBI_DMARQ */
top_set_pin(107, 02); /* EBI_IRQ2 */
top_set_pin(108, 02); /* EBI_IRQ3 */
top_set_pin(30, 01); /* EBI_GENIO1 top_set_pin(99,03); EBI_GENIO1 */
top_set_pin(31, 01); /* EBI_GENIO2 top_set_pin(98,03); EBI_GENIO2 */
top_set_pin(105, 02); /* EBI_GENIO3 top_set_pin(104,03); EBI_GENIO3 */
top_set_pin(106, 02); /* EBI_GENIO4 top_set_pin(144,02); EBI_GENIO4 */
top_set_pin(109, 02); /* EBI_GENIO5 top_set_pin(142,02); EBI_GENIO5 */
top_set_pin(110, 02); /* EBI_BURST_CLK */
#endif
#if defined(CONFIG_VCT_PLATINUMAVC)
top_set_pin(19, 01); /* EBI_CS0 */
top_set_pin(18, 01); /* EBI_CS1 */
top_set_pin(17, 01); /* EBI_CS2 */
top_set_pin(92, 02); /* EBI_CS3 */
top_set_pin(93, 02); /* EBI_CS4 */
top_set_pin(95, 02); /* EBI_CS6 */
top_set_pin(96, 02); /* EBI_CS7 top_set_pin(104,03); EBI_GENIO3 */
top_set_pin(20, 01); /* EBI_ALE */
top_set_pin(21, 01); /* EBI_ADDR15 */
top_set_pin(22, 01); /* EBI_ADDR14 top_set_pin(78,03); EBI_ADDR14 */
top_set_pin(23, 01); /* EBI_ADDR13 */
top_set_pin(24, 01); /* EBI_ADDR12 */
top_set_pin(25, 01); /* EBI_ADDR11 */
top_set_pin(26, 01); /* EBI_ADDR10 */
top_set_pin(27, 01); /* EBI_ADDR9 */
top_set_pin(28, 01); /* EBI_ADDR8 */
top_set_pin(29, 01); /* EBI_ADDR7 */
top_set_pin(30, 01); /* EBI_ADDR6 */
top_set_pin(31, 01); /* EBI_ADDR5 */
top_set_pin(32, 01); /* EBI_ADDR4 */
top_set_pin(33, 01); /* EBI_ADDR3 */
top_set_pin(34, 01); /* EBI_ADDR2 */
top_set_pin(35, 01); /* EBI_ADDR1 */
top_set_pin(36, 01); /* EBI_ADDR0 */
top_set_pin(37, 01); /* EBI_DIR */
top_set_pin(38, 01); /* EBI_DAT15 top_set_pin(81,01); EBI_DAT15 */
top_set_pin(39, 01); /* EBI_DAT14 top_set_pin(82,01); EBI_DAT14 */
top_set_pin(40, 01); /* EBI_DAT13 top_set_pin(83,01); EBI_DAT13 */
top_set_pin(41, 01); /* EBI_DAT12 top_set_pin(84,01); EBI_DAT12 */
top_set_pin(42, 01); /* EBI_DAT11 top_set_pin(85,01); EBI_DAT11 */
top_set_pin(43, 01); /* EBI_DAT10 top_set_pin(86,01); EBI_DAT10 */
top_set_pin(44, 01); /* EBI_DAT9 top_set_pin(87,01); EBI_DAT9 */
top_set_pin(45, 01); /* EBI_DAT8 top_set_pin(88,01); EBI_DAT8 */
top_set_pin(46, 01); /* EBI_DAT7 */
top_set_pin(47, 01); /* EBI_DAT6 */
top_set_pin(48, 01); /* EBI_DAT5 */
top_set_pin(49, 01); /* EBI_DAT4 */
top_set_pin(50, 01); /* EBI_DAT3 */
top_set_pin(51, 01); /* EBI_DAT2 */
top_set_pin(52, 01); /* EBI_DAT1 */
top_set_pin(53, 01); /* EBI_DAT0 */
top_set_pin(54, 01); /* EBI_IORD */
top_set_pin(55, 01); /* EBI_IOWR */
top_set_pin(56, 01); /* EBI_WE */
top_set_pin(57, 01); /* EBI_OE */
top_set_pin(58, 01); /* EBI_IORDY */
top_set_pin(87, 02); /* EBI_EBI_DMACK*/
top_set_pin(106, 02); /* EBI_IRQ0 */
top_set_pin(105, 02); /* EBI_IRQ1 top_set_pin(111,03); EBI_DMARQ */
top_set_pin(101, 02); /* EBI_IRQ2 */
top_set_pin(102, 02); /* EBI_IRQ3 */
top_set_pin(15, 01); /* EBI_GENIO1 top_set_pin(99,03); EBI_GENIO1 */
top_set_pin(16, 01); /* EBI_GENIO2 top_set_pin(98,03); EBI_GENIO2 */
top_set_pin(99, 02); /* EBI_GENIO3 top_set_pin(104,03); EBI_GENIO3 */
top_set_pin(100, 02); /* EBI_GENIO4 top_set_pin(144,02); EBI_GENIO4 */
top_set_pin(103, 02); /* EBI_GENIO5 top_set_pin(142,02); EBI_GENIO5 */
top_set_pin(104, 02); /* EBI_BURST_CLK */
#endif
/* I2C: Configure I2C-2 as GPIO to enable soft-i2c */
top_set_pin(0, 2); /* SCL2 on GPIO 11 */
top_set_pin(1, 2); /* SDA2 on GPIO 10 */
/* UART pins */
#if defined(CONFIG_VCT_PREMIUM) || defined(CONFIG_VCT_PLATINUM)
top_set_pin(141, 1);
top_set_pin(143, 1);
#endif
#if defined(CONFIG_VCT_PLATINUMAVC)
top_set_pin(107, 1);
top_set_pin(109, 1);
#endif
}