summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-ep93xx/edb93xx.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-ep93xx/edb93xx.c')
-rw-r--r--arch/arm/mach-ep93xx/edb93xx.c344
1 files changed, 344 insertions, 0 deletions
diff --git a/arch/arm/mach-ep93xx/edb93xx.c b/arch/arm/mach-ep93xx/edb93xx.c
new file mode 100644
index 0000000000..4b90899a66
--- /dev/null
+++ b/arch/arm/mach-ep93xx/edb93xx.c
@@ -0,0 +1,344 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * arch/arm/mach-ep93xx/edb93xx.c
+ * Cirrus Logic EDB93xx Development Board support.
+ *
+ * EDB93XX, EDB9301, EDB9307A
+ * Copyright (C) 2008-2009 H Hartley Sweeten <hsweeten@visionengravers.com>
+ *
+ * EDB9302
+ * Copyright (C) 2006 George Kashperko <george@chas.com.ua>
+ *
+ * EDB9302A, EDB9315, EDB9315A
+ * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
+ *
+ * EDB9307
+ * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
+ *
+ * EDB9312
+ * Copyright (C) 2006 Infosys Technologies Limited
+ * Toufeeq Hussain <toufeeq_hussain@infosys.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/spi/spi.h>
+#include <linux/gpio/machine.h>
+
+#include <sound/cs4271.h>
+
+#include "hardware.h"
+#include <linux/platform_data/video-ep93xx.h>
+#include <linux/platform_data/spi-ep93xx.h>
+#include "gpio-ep93xx.h"
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include "soc.h"
+
+static void __init edb93xx_register_flash(void)
+{
+ if (machine_is_edb9307() || machine_is_edb9312() ||
+ machine_is_edb9315()) {
+ ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
+ } else {
+ ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
+ }
+}
+
+static struct ep93xx_eth_data __initdata edb93xx_eth_data = {
+ .phy_id = 1,
+};
+
+
+/*************************************************************************
+ * EDB93xx i2c peripheral handling
+ *************************************************************************/
+
+static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = {
+ {
+ I2C_BOARD_INFO("isl1208", 0x6f),
+ },
+};
+
+static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = {
+ {
+ I2C_BOARD_INFO("ds1337", 0x68),
+ },
+};
+
+static void __init edb93xx_register_i2c(void)
+{
+ if (machine_is_edb9302a() || machine_is_edb9307a() ||
+ machine_is_edb9315a()) {
+ ep93xx_register_i2c(edb93xxa_i2c_board_info,
+ ARRAY_SIZE(edb93xxa_i2c_board_info));
+ } else if (machine_is_edb9302() || machine_is_edb9307()
+ || machine_is_edb9312() || machine_is_edb9315()) {
+ ep93xx_register_i2c(edb93xx_i2c_board_info,
+ ARRAY_SIZE(edb93xx_i2c_board_info));
+ }
+}
+
+
+/*************************************************************************
+ * EDB93xx SPI peripheral handling
+ *************************************************************************/
+static struct cs4271_platform_data edb93xx_cs4271_data = {
+ .gpio_nreset = -EINVAL, /* filled in later */
+};
+
+static struct spi_board_info edb93xx_spi_board_info[] __initdata = {
+ {
+ .modalias = "cs4271",
+ .platform_data = &edb93xx_cs4271_data,
+ .max_speed_hz = 6000000,
+ .bus_num = 0,
+ .chip_select = 0,
+ .mode = SPI_MODE_3,
+ },
+};
+
+static struct gpiod_lookup_table edb93xx_spi_cs_gpio_table = {
+ .dev_id = "spi0",
+ .table = {
+ GPIO_LOOKUP("A", 6, "cs", GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
+static struct ep93xx_spi_info edb93xx_spi_info __initdata = {
+ /* Intentionally left blank */
+};
+
+static void __init edb93xx_register_spi(void)
+{
+ if (machine_is_edb9301() || machine_is_edb9302())
+ edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO1;
+ else if (machine_is_edb9302a() || machine_is_edb9307a())
+ edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_H(2);
+ else if (machine_is_edb9315a())
+ edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO14;
+
+ gpiod_add_lookup_table(&edb93xx_spi_cs_gpio_table);
+ ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info,
+ ARRAY_SIZE(edb93xx_spi_board_info));
+}
+
+
+/*************************************************************************
+ * EDB93xx I2S
+ *************************************************************************/
+static struct platform_device edb93xx_audio_device = {
+ .name = "edb93xx-audio",
+ .id = -1,
+};
+
+static int __init edb93xx_has_audio(void)
+{
+ return (machine_is_edb9301() || machine_is_edb9302() ||
+ machine_is_edb9302a() || machine_is_edb9307a() ||
+ machine_is_edb9315a());
+}
+
+static void __init edb93xx_register_i2s(void)
+{
+ if (edb93xx_has_audio()) {
+ ep93xx_register_i2s();
+ platform_device_register(&edb93xx_audio_device);
+ }
+}
+
+
+/*************************************************************************
+ * EDB93xx pwm
+ *************************************************************************/
+static void __init edb93xx_register_pwm(void)
+{
+ if (machine_is_edb9301() ||
+ machine_is_edb9302() || machine_is_edb9302a()) {
+ /* EP9301 and EP9302 only have pwm.1 (EGPIO14) */
+ ep93xx_register_pwm(0, 1);
+ } else if (machine_is_edb9307() || machine_is_edb9307a()) {
+ /* EP9307 only has pwm.0 (PWMOUT) */
+ ep93xx_register_pwm(1, 0);
+ } else {
+ /* EP9312 and EP9315 have both */
+ ep93xx_register_pwm(1, 1);
+ }
+}
+
+
+/*************************************************************************
+ * EDB93xx framebuffer
+ *************************************************************************/
+static struct ep93xxfb_mach_info __initdata edb93xxfb_info = {
+ .flags = 0,
+};
+
+static int __init edb93xx_has_fb(void)
+{
+ /* These platforms have an ep93xx with video capability */
+ return machine_is_edb9307() || machine_is_edb9307a() ||
+ machine_is_edb9312() || machine_is_edb9315() ||
+ machine_is_edb9315a();
+}
+
+static void __init edb93xx_register_fb(void)
+{
+ if (!edb93xx_has_fb())
+ return;
+
+ if (machine_is_edb9307a() || machine_is_edb9315a())
+ edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN0;
+ else
+ edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN3;
+
+ ep93xx_register_fb(&edb93xxfb_info);
+}
+
+
+/*************************************************************************
+ * EDB93xx IDE
+ *************************************************************************/
+static int __init edb93xx_has_ide(void)
+{
+ /*
+ * Although EDB9312 and EDB9315 do have IDE capability, they have
+ * INTRQ line wired as pull-up, which makes using IDE interface
+ * problematic.
+ */
+ return machine_is_edb9312() || machine_is_edb9315() ||
+ machine_is_edb9315a();
+}
+
+static void __init edb93xx_register_ide(void)
+{
+ if (!edb93xx_has_ide())
+ return;
+
+ ep93xx_register_ide();
+}
+
+
+static void __init edb93xx_init_machine(void)
+{
+ ep93xx_init_devices();
+ edb93xx_register_flash();
+ ep93xx_register_eth(&edb93xx_eth_data, 1);
+ edb93xx_register_i2c();
+ edb93xx_register_spi();
+ edb93xx_register_i2s();
+ edb93xx_register_pwm();
+ edb93xx_register_fb();
+ edb93xx_register_ide();
+ ep93xx_register_adc();
+}
+
+
+#ifdef CONFIG_MACH_EDB9301
+MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board")
+ /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
+ .atag_offset = 0x100,
+ .nr_irqs = NR_EP93XX_IRQS,
+ .map_io = ep93xx_map_io,
+ .init_irq = ep93xx_init_irq,
+ .init_time = ep93xx_timer_init,
+ .init_machine = edb93xx_init_machine,
+ .restart = ep93xx_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_EDB9302
+MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board")
+ /* Maintainer: George Kashperko <george@chas.com.ua> */
+ .atag_offset = 0x100,
+ .nr_irqs = NR_EP93XX_IRQS,
+ .map_io = ep93xx_map_io,
+ .init_irq = ep93xx_init_irq,
+ .init_time = ep93xx_timer_init,
+ .init_machine = edb93xx_init_machine,
+ .restart = ep93xx_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_EDB9302A
+MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board")
+ /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
+ .atag_offset = 0x100,
+ .nr_irqs = NR_EP93XX_IRQS,
+ .map_io = ep93xx_map_io,
+ .init_irq = ep93xx_init_irq,
+ .init_time = ep93xx_timer_init,
+ .init_machine = edb93xx_init_machine,
+ .restart = ep93xx_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_EDB9307
+MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board")
+ /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
+ .atag_offset = 0x100,
+ .nr_irqs = NR_EP93XX_IRQS,
+ .map_io = ep93xx_map_io,
+ .init_irq = ep93xx_init_irq,
+ .init_time = ep93xx_timer_init,
+ .init_machine = edb93xx_init_machine,
+ .restart = ep93xx_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_EDB9307A
+MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board")
+ /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
+ .atag_offset = 0x100,
+ .nr_irqs = NR_EP93XX_IRQS,
+ .map_io = ep93xx_map_io,
+ .init_irq = ep93xx_init_irq,
+ .init_time = ep93xx_timer_init,
+ .init_machine = edb93xx_init_machine,
+ .restart = ep93xx_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_EDB9312
+MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board")
+ /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */
+ .atag_offset = 0x100,
+ .nr_irqs = NR_EP93XX_IRQS,
+ .map_io = ep93xx_map_io,
+ .init_irq = ep93xx_init_irq,
+ .init_time = ep93xx_timer_init,
+ .init_machine = edb93xx_init_machine,
+ .restart = ep93xx_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_EDB9315
+MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board")
+ /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
+ .atag_offset = 0x100,
+ .nr_irqs = NR_EP93XX_IRQS,
+ .map_io = ep93xx_map_io,
+ .init_irq = ep93xx_init_irq,
+ .init_time = ep93xx_timer_init,
+ .init_machine = edb93xx_init_machine,
+ .restart = ep93xx_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_EDB9315A
+MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board")
+ /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
+ .atag_offset = 0x100,
+ .nr_irqs = NR_EP93XX_IRQS,
+ .map_io = ep93xx_map_io,
+ .init_irq = ep93xx_init_irq,
+ .init_time = ep93xx_timer_init,
+ .init_machine = edb93xx_init_machine,
+ .restart = ep93xx_restart,
+MACHINE_END
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 03:33:48 +0000