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-rw-r--r--arch/m68k/platform/523x/Makefile17
-rw-r--r--arch/m68k/platform/523x/config.c66
-rw-r--r--arch/m68k/platform/523x/gpio.c284
3 files changed, 367 insertions, 0 deletions
diff --git a/arch/m68k/platform/523x/Makefile b/arch/m68k/platform/523x/Makefile
new file mode 100644
index 00000000..c04b8f71
--- /dev/null
+++ b/arch/m68k/platform/523x/Makefile
@@ -0,0 +1,17 @@
+#
+# Makefile for the m68knommu 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/523x/config.c b/arch/m68k/platform/523x/config.c
new file mode 100644
index 00000000..d47dfd8f
--- /dev/null
+++ b/arch/m68k/platform/523x/config.c
@@ -0,0 +1,66 @@
+/***************************************************************************/
+
+/*
+ * linux/arch/m68knommu/platform/523x/config.c
+ *
+ * Sub-architcture dependent initialization code for the Freescale
+ * 523x CPUs.
+ *
+ * Copyright (C) 1999-2005, 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/io.h>
+#include <asm/machdep.h>
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+
+/***************************************************************************/
+
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
+
+static void __init m523x_qspi_init(void)
+{
+ u16 par;
+
+ /* setup QSPS pins for QSPI with gpio CS control */
+ writeb(0x1f, MCFGPIO_PAR_QSPI);
+ /* and CS2 & CS3 as gpio */
+ par = readw(MCFGPIO_PAR_TIMER);
+ par &= 0x3f3f;
+ writew(par, MCFGPIO_PAR_TIMER);
+}
+
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
+
+/***************************************************************************/
+
+static void __init m523x_fec_init(void)
+{
+ u16 par;
+ u8 v;
+
+ /* Set multi-function pins to ethernet use */
+ par = readw(MCF_IPSBAR + 0x100082);
+ writew(par | 0xf00, MCF_IPSBAR + 0x100082);
+ v = readb(MCF_IPSBAR + 0x100078);
+ writeb(v | 0xc0, MCF_IPSBAR + 0x100078);
+}
+
+/***************************************************************************/
+
+void __init config_BSP(char *commandp, int size)
+{
+ mach_sched_init = hw_timer_init;
+ m523x_fec_init();
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
+ m523x_qspi_init();
+#endif
+}
+
+/***************************************************************************/
diff --git a/arch/m68k/platform/523x/gpio.c b/arch/m68k/platform/523x/gpio.c
new file mode 100644
index 00000000..327ebf14
--- /dev/null
+++ b/arch/m68k/platform/523x/gpio.c
@@ -0,0 +1,284 @@
+/*
+ * 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 = "PIRQ",
+ .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 = "ADDR",
+ .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 = 13,
+ .ngpio = 3,
+ },
+ .pddr = (void __iomem *) MCFGPIO_PDDR_ADDR,
+ .podr = (void __iomem *) MCFGPIO_PODR_ADDR,
+ .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ADDR,
+ .setr = (void __iomem *) MCFGPIO_PPDSDR_ADDR,
+ .clrr = (void __iomem *) MCFGPIO_PCLRR_ADDR,
+ },
+ {
+ .gpio_chip = {
+ .label = "DATAH",
+ .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 = 8,
+ },
+ .pddr = (void __iomem *) MCFGPIO_PDDR_DATAH,
+ .podr = (void __iomem *) MCFGPIO_PODR_DATAH,
+ .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAH,
+ .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAH,
+ .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAH,
+ },
+ {
+ .gpio_chip = {
+ .label = "DATAL",
+ .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 = 8,
+ },
+ .pddr = (void __iomem *) MCFGPIO_PDDR_DATAL,
+ .podr = (void __iomem *) MCFGPIO_PODR_DATAL,
+ .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAL,
+ .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAL,
+ .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAL,
+ },
+ {
+ .gpio_chip = {
+ .label = "BUSCTL",
+ .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 = 8,
+ },
+ .pddr = (void __iomem *) MCFGPIO_PDDR_BUSCTL,
+ .podr = (void __iomem *) MCFGPIO_PODR_BUSCTL,
+ .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL,
+ .setr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL,
+ .clrr = (void __iomem *) MCFGPIO_PCLRR_BUSCTL,
+ },
+ {
+ .gpio_chip = {
+ .label = "BS",
+ .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 = 4,
+ },
+ .pddr = (void __iomem *) MCFGPIO_PDDR_BS,
+ .podr = (void __iomem *) MCFGPIO_PODR_BS,
+ .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BS,
+ .setr = (void __iomem *) MCFGPIO_PPDSDR_BS,
+ .clrr = (void __iomem *) MCFGPIO_PCLRR_BS,
+ },
+ {
+ .gpio_chip = {
+ .label = "CS",
+ .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 = 49,
+ .ngpio = 7,
+ },
+ .pddr = (void __iomem *) MCFGPIO_PDDR_CS,
+ .podr = (void __iomem *) MCFGPIO_PODR_CS,
+ .ppdr = (void __iomem *) MCFGPIO_PPDSDR_CS,
+ .setr = (void __iomem *) MCFGPIO_PPDSDR_CS,
+ .clrr = (void __iomem *) MCFGPIO_PCLRR_CS,
+ },
+ {
+ .gpio_chip = {
+ .label = "SDRAM",
+ .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 = 6,
+ },
+ .pddr = (void __iomem *) MCFGPIO_PDDR_SDRAM,
+ .podr = (void __iomem *) MCFGPIO_PODR_SDRAM,
+ .ppdr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM,
+ .setr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM,
+ .clrr = (void __iomem *) MCFGPIO_PCLRR_SDRAM,
+ },
+ {
+ .gpio_chip = {
+ .label = "FECI2C",
+ .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 = 4,
+ },
+ .pddr = (void __iomem *) MCFGPIO_PDDR_FECI2C,
+ .podr = (void __iomem *) MCFGPIO_PODR_FECI2C,
+ .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C,
+ .setr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C,
+ .clrr = (void __iomem *) MCFGPIO_PCLRR_FECI2C,
+ },
+ {
+ .gpio_chip = {
+ .label = "UARTH",
+ .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 = 2,
+ },
+ .pddr = (void __iomem *) MCFGPIO_PDDR_UARTH,
+ .podr = (void __iomem *) MCFGPIO_PODR_UARTH,
+ .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTH,
+ .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTH,
+ .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTH,
+ },
+ {
+ .gpio_chip = {
+ .label = "UARTL",
+ .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_PDDR_UARTL,
+ .podr = (void __iomem *) MCFGPIO_PODR_UARTL,
+ .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTL,
+ .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTL,
+ .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTL,
+ },
+ {
+ .gpio_chip = {
+ .label = "QSPI",
+ .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 = 5,
+ },
+ .pddr = (void __iomem *) MCFGPIO_PDDR_QSPI,
+ .podr = (void __iomem *) MCFGPIO_PODR_QSPI,
+ .ppdr = (void __iomem *) MCFGPIO_PPDSDR_QSPI,
+ .setr = (void __iomem *) MCFGPIO_PPDSDR_QSPI,
+ .clrr = (void __iomem *) MCFGPIO_PCLRR_QSPI,
+ },
+ {
+ .gpio_chip = {
+ .label = "TIMER",
+ .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_PDDR_TIMER,
+ .podr = (void __iomem *) MCFGPIO_PODR_TIMER,
+ .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMER,
+ .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMER,
+ .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMER,
+ },
+ {
+ .gpio_chip = {
+ .label = "ETPU",
+ .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 = 3,
+ },
+ .pddr = (void __iomem *) MCFGPIO_PDDR_ETPU,
+ .podr = (void __iomem *) MCFGPIO_PODR_ETPU,
+ .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ETPU,
+ .setr = (void __iomem *) MCFGPIO_PPDSDR_ETPU,
+ .clrr = (void __iomem *) MCFGPIO_PCLRR_ETPU,
+ },
+};
+
+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 18:29:11 +0000