summaryrefslogtreecommitdiff
path: root/arch/m68k/platform/528x
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k/platform/528x')
-rw-r--r--arch/m68k/platform/528x/Makefile18
-rw-r--r--arch/m68k/platform/528x/config.c106
-rw-r--r--arch/m68k/platform/528x/gpio.c438
3 files changed, 562 insertions, 0 deletions
diff --git a/arch/m68k/platform/528x/Makefile b/arch/m68k/platform/528x/Makefile
new file mode 100644
index 00000000..6ac4b573
--- /dev/null
+++ b/arch/m68k/platform/528x/Makefile
@@ -0,0 +1,18 @@
+#
+# Makefile for the linux kernel.
+#
+
+#
+# If you want to play with the HW breakpoints then you will
+# need to add define this, which will give you a stack backtrace
+# on the console port whenever a DBG interrupt occurs. You have to
+# set up you HW breakpoints to trigger a DBG interrupt:
+#
+# ccflags-y := -DTRAP_DBG_INTERRUPT
+# asflags-y := -DTRAP_DBG_INTERRUPT
+#
+
+asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1
+
+obj-y := config.o gpio.o
+
diff --git a/arch/m68k/platform/528x/config.c b/arch/m68k/platform/528x/config.c
new file mode 100644
index 00000000..c5f11ba4
--- /dev/null
+++ b/arch/m68k/platform/528x/config.c
@@ -0,0 +1,106 @@
+/***************************************************************************/
+
+/*
+ * linux/arch/m68knommu/platform/528x/config.c
+ *
+ * Sub-architcture dependent initialization code for the Freescale
+ * 5280, 5281 and 5282 CPUs.
+ *
+ * Copyright (C) 1999-2003, Greg Ungerer (gerg@snapgear.com)
+ * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
+ */
+
+/***************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <asm/machdep.h>
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+#include <asm/mcfuart.h>
+
+/***************************************************************************/
+
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
+
+static void __init m528x_qspi_init(void)
+{
+ /* setup Port QS for QSPI with gpio CS control */
+ __raw_writeb(0x07, MCFGPIO_PQSPAR);
+}
+
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
+
+/***************************************************************************/
+
+static void __init m528x_uarts_init(void)
+{
+ u8 port;
+
+ /* make sure PUAPAR is set for UART0 and UART1 */
+ port = readb(MCF5282_GPIO_PUAPAR);
+ port |= 0x03 | (0x03 << 2);
+ writeb(port, MCF5282_GPIO_PUAPAR);
+}
+
+/***************************************************************************/
+
+static void __init m528x_fec_init(void)
+{
+ u16 v16;
+
+ /* Set multi-function pins to ethernet mode for fec0 */
+ v16 = readw(MCF_IPSBAR + 0x100056);
+ writew(v16 | 0xf00, MCF_IPSBAR + 0x100056);
+ writeb(0xc0, MCF_IPSBAR + 0x100058);
+}
+
+/***************************************************************************/
+
+#ifdef CONFIG_WILDFIRE
+void wildfire_halt(void)
+{
+ writeb(0, 0x30000007);
+ writeb(0x2, 0x30000007);
+}
+#endif
+
+#ifdef CONFIG_WILDFIREMOD
+void wildfiremod_halt(void)
+{
+ printk(KERN_INFO "WildFireMod hibernating...\n");
+
+ /* Set portE.5 to Digital IO */
+ MCF5282_GPIO_PEPAR &= ~(1 << (5 * 2));
+
+ /* Make portE.5 an output */
+ MCF5282_GPIO_DDRE |= (1 << 5);
+
+ /* Now toggle portE.5 from low to high */
+ MCF5282_GPIO_PORTE &= ~(1 << 5);
+ MCF5282_GPIO_PORTE |= (1 << 5);
+
+ printk(KERN_EMERG "Failed to hibernate. Halting!\n");
+}
+#endif
+
+void __init config_BSP(char *commandp, int size)
+{
+#ifdef CONFIG_WILDFIRE
+ mach_halt = wildfire_halt;
+#endif
+#ifdef CONFIG_WILDFIREMOD
+ mach_halt = wildfiremod_halt;
+#endif
+ mach_sched_init = hw_timer_init;
+ m528x_uarts_init();
+ m528x_fec_init();
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
+ m528x_qspi_init();
+#endif
+}
+
+/***************************************************************************/
diff --git a/arch/m68k/platform/528x/gpio.c b/arch/m68k/platform/528x/gpio.c
new file mode 100644
index 00000000..526db665
--- /dev/null
+++ b/arch/m68k/platform/528x/gpio.c
@@ -0,0 +1,438 @@
+/*
+ * Coldfire generic GPIO support
+ *
+ * (C) Copyright 2009, Steven King <sfking@fdwdc.com>
+ *
+ * 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; version 2 of the License.
+ *
+ * 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.
+*/
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+#include <asm/mcfgpio.h>
+
+static struct mcf_gpio_chip mcf_gpio_chips[] = {
+ {
+ .gpio_chip = {
+ .label = "NQ",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value,
+ .base = 1,
+ .ngpio = 7,
+ },
+ .pddr = (void __iomem *)MCFEPORT_EPDDR,
+ .podr = (void __iomem *)MCFEPORT_EPDR,
+ .ppdr = (void __iomem *)MCFEPORT_EPPDR,
+ },
+ {
+ .gpio_chip = {
+ .label = "TA",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 8,
+ .ngpio = 4,
+ },
+ .pddr = (void __iomem *)MCFGPTA_GPTDDR,
+ .podr = (void __iomem *)MCFGPTA_GPTPORT,
+ .ppdr = (void __iomem *)MCFGPTB_GPTPORT,
+ },
+ {
+ .gpio_chip = {
+ .label = "TB",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 16,
+ .ngpio = 4,
+ },
+ .pddr = (void __iomem *)MCFGPTB_GPTDDR,
+ .podr = (void __iomem *)MCFGPTB_GPTPORT,
+ .ppdr = (void __iomem *)MCFGPTB_GPTPORT,
+ },
+ {
+ .gpio_chip = {
+ .label = "QA",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 24,
+ .ngpio = 4,
+ },
+ .pddr = (void __iomem *)MCFQADC_DDRQA,
+ .podr = (void __iomem *)MCFQADC_PORTQA,
+ .ppdr = (void __iomem *)MCFQADC_PORTQA,
+ },
+ {
+ .gpio_chip = {
+ .label = "QB",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 32,
+ .ngpio = 4,
+ },
+ .pddr = (void __iomem *)MCFQADC_DDRQB,
+ .podr = (void __iomem *)MCFQADC_PORTQB,
+ .ppdr = (void __iomem *)MCFQADC_PORTQB,
+ },
+ {
+ .gpio_chip = {
+ .label = "A",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 40,
+ .ngpio = 8,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRA,
+ .podr = (void __iomem *)MCFGPIO_PORTA,
+ .ppdr = (void __iomem *)MCFGPIO_PORTAP,
+ .setr = (void __iomem *)MCFGPIO_SETA,
+ .clrr = (void __iomem *)MCFGPIO_CLRA,
+ },
+ {
+ .gpio_chip = {
+ .label = "B",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 48,
+ .ngpio = 8,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRB,
+ .podr = (void __iomem *)MCFGPIO_PORTB,
+ .ppdr = (void __iomem *)MCFGPIO_PORTBP,
+ .setr = (void __iomem *)MCFGPIO_SETB,
+ .clrr = (void __iomem *)MCFGPIO_CLRB,
+ },
+ {
+ .gpio_chip = {
+ .label = "C",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 56,
+ .ngpio = 8,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRC,
+ .podr = (void __iomem *)MCFGPIO_PORTC,
+ .ppdr = (void __iomem *)MCFGPIO_PORTCP,
+ .setr = (void __iomem *)MCFGPIO_SETC,
+ .clrr = (void __iomem *)MCFGPIO_CLRC,
+ },
+ {
+ .gpio_chip = {
+ .label = "D",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 64,
+ .ngpio = 8,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRD,
+ .podr = (void __iomem *)MCFGPIO_PORTD,
+ .ppdr = (void __iomem *)MCFGPIO_PORTDP,
+ .setr = (void __iomem *)MCFGPIO_SETD,
+ .clrr = (void __iomem *)MCFGPIO_CLRD,
+ },
+ {
+ .gpio_chip = {
+ .label = "E",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 72,
+ .ngpio = 8,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRE,
+ .podr = (void __iomem *)MCFGPIO_PORTE,
+ .ppdr = (void __iomem *)MCFGPIO_PORTEP,
+ .setr = (void __iomem *)MCFGPIO_SETE,
+ .clrr = (void __iomem *)MCFGPIO_CLRE,
+ },
+ {
+ .gpio_chip = {
+ .label = "F",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 80,
+ .ngpio = 8,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRF,
+ .podr = (void __iomem *)MCFGPIO_PORTF,
+ .ppdr = (void __iomem *)MCFGPIO_PORTFP,
+ .setr = (void __iomem *)MCFGPIO_SETF,
+ .clrr = (void __iomem *)MCFGPIO_CLRF,
+ },
+ {
+ .gpio_chip = {
+ .label = "G",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 88,
+ .ngpio = 8,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRG,
+ .podr = (void __iomem *)MCFGPIO_PORTG,
+ .ppdr = (void __iomem *)MCFGPIO_PORTGP,
+ .setr = (void __iomem *)MCFGPIO_SETG,
+ .clrr = (void __iomem *)MCFGPIO_CLRG,
+ },
+ {
+ .gpio_chip = {
+ .label = "H",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 96,
+ .ngpio = 8,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRH,
+ .podr = (void __iomem *)MCFGPIO_PORTH,
+ .ppdr = (void __iomem *)MCFGPIO_PORTHP,
+ .setr = (void __iomem *)MCFGPIO_SETH,
+ .clrr = (void __iomem *)MCFGPIO_CLRH,
+ },
+ {
+ .gpio_chip = {
+ .label = "J",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 104,
+ .ngpio = 8,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRJ,
+ .podr = (void __iomem *)MCFGPIO_PORTJ,
+ .ppdr = (void __iomem *)MCFGPIO_PORTJP,
+ .setr = (void __iomem *)MCFGPIO_SETJ,
+ .clrr = (void __iomem *)MCFGPIO_CLRJ,
+ },
+ {
+ .gpio_chip = {
+ .label = "DD",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 112,
+ .ngpio = 8,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRDD,
+ .podr = (void __iomem *)MCFGPIO_PORTDD,
+ .ppdr = (void __iomem *)MCFGPIO_PORTDDP,
+ .setr = (void __iomem *)MCFGPIO_SETDD,
+ .clrr = (void __iomem *)MCFGPIO_CLRDD,
+ },
+ {
+ .gpio_chip = {
+ .label = "EH",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 120,
+ .ngpio = 8,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDREH,
+ .podr = (void __iomem *)MCFGPIO_PORTEH,
+ .ppdr = (void __iomem *)MCFGPIO_PORTEHP,
+ .setr = (void __iomem *)MCFGPIO_SETEH,
+ .clrr = (void __iomem *)MCFGPIO_CLREH,
+ },
+ {
+ .gpio_chip = {
+ .label = "EL",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 128,
+ .ngpio = 8,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDREL,
+ .podr = (void __iomem *)MCFGPIO_PORTEL,
+ .ppdr = (void __iomem *)MCFGPIO_PORTELP,
+ .setr = (void __iomem *)MCFGPIO_SETEL,
+ .clrr = (void __iomem *)MCFGPIO_CLREL,
+ },
+ {
+ .gpio_chip = {
+ .label = "AS",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 136,
+ .ngpio = 6,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRAS,
+ .podr = (void __iomem *)MCFGPIO_PORTAS,
+ .ppdr = (void __iomem *)MCFGPIO_PORTASP,
+ .setr = (void __iomem *)MCFGPIO_SETAS,
+ .clrr = (void __iomem *)MCFGPIO_CLRAS,
+ },
+ {
+ .gpio_chip = {
+ .label = "QS",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 144,
+ .ngpio = 7,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRQS,
+ .podr = (void __iomem *)MCFGPIO_PORTQS,
+ .ppdr = (void __iomem *)MCFGPIO_PORTQSP,
+ .setr = (void __iomem *)MCFGPIO_SETQS,
+ .clrr = (void __iomem *)MCFGPIO_CLRQS,
+ },
+ {
+ .gpio_chip = {
+ .label = "SD",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 152,
+ .ngpio = 6,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRSD,
+ .podr = (void __iomem *)MCFGPIO_PORTSD,
+ .ppdr = (void __iomem *)MCFGPIO_PORTSDP,
+ .setr = (void __iomem *)MCFGPIO_SETSD,
+ .clrr = (void __iomem *)MCFGPIO_CLRSD,
+ },
+ {
+ .gpio_chip = {
+ .label = "TC",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 160,
+ .ngpio = 4,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRTC,
+ .podr = (void __iomem *)MCFGPIO_PORTTC,
+ .ppdr = (void __iomem *)MCFGPIO_PORTTCP,
+ .setr = (void __iomem *)MCFGPIO_SETTC,
+ .clrr = (void __iomem *)MCFGPIO_CLRTC,
+ },
+ {
+ .gpio_chip = {
+ .label = "TD",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 168,
+ .ngpio = 4,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRTD,
+ .podr = (void __iomem *)MCFGPIO_PORTTD,
+ .ppdr = (void __iomem *)MCFGPIO_PORTTDP,
+ .setr = (void __iomem *)MCFGPIO_SETTD,
+ .clrr = (void __iomem *)MCFGPIO_CLRTD,
+ },
+ {
+ .gpio_chip = {
+ .label = "UA",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 176,
+ .ngpio = 4,
+ },
+ .pddr = (void __iomem *)MCFGPIO_DDRUA,
+ .podr = (void __iomem *)MCFGPIO_PORTUA,
+ .ppdr = (void __iomem *)MCFGPIO_PORTUAP,
+ .setr = (void __iomem *)MCFGPIO_SETUA,
+ .clrr = (void __iomem *)MCFGPIO_CLRUA,
+ },
+};
+
+static int __init mcf_gpio_init(void)
+{
+ unsigned i = 0;
+ while (i < ARRAY_SIZE(mcf_gpio_chips))
+ (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]);
+ return 0;
+}
+
+core_initcall(mcf_gpio_init);
generated by cgit (git 2.34.1) at 2025-01-18 13:06:17 +0000