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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /arch/arm/mach-iop32x/glantank.c
parentInitial commit. (diff)
downloadlinux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz
linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-iop32x/glantank.c')
-rw-r--r--arch/arm/mach-iop32x/glantank.c213
1 files changed, 213 insertions, 0 deletions
diff --git a/arch/arm/mach-iop32x/glantank.c b/arch/arm/mach-iop32x/glantank.c
new file mode 100644
index 000000000..2fe0f77d1
--- /dev/null
+++ b/arch/arm/mach-iop32x/glantank.c
@@ -0,0 +1,213 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * arch/arm/mach-iop32x/glantank.c
+ *
+ * Board support code for the GLAN Tank.
+ *
+ * Copyright (C) 2006, 2007 Martin Michlmayr <tbm@cyrius.com>
+ * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
+ */
+
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/f75375s.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/pm.h>
+#include <linux/string.h>
+#include <linux/serial_core.h>
+#include <linux/serial_8250.h>
+#include <linux/mtd/physmap.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/gpio/machine.h>
+#include <asm/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/pci.h>
+#include <asm/mach/time.h>
+#include <asm/mach-types.h>
+#include <asm/page.h>
+
+#include "hardware.h"
+#include "gpio-iop32x.h"
+#include "irqs.h"
+
+/*
+ * GLAN Tank timer tick configuration.
+ */
+static void __init glantank_timer_init(void)
+{
+ /* 33.333 MHz crystal. */
+ iop_init_time(200000000);
+}
+
+
+/*
+ * GLAN Tank I/O.
+ */
+static struct map_desc glantank_io_desc[] __initdata = {
+ { /* on-board devices */
+ .virtual = GLANTANK_UART,
+ .pfn = __phys_to_pfn(GLANTANK_UART),
+ .length = 0x00100000,
+ .type = MT_DEVICE
+ },
+};
+
+void __init glantank_map_io(void)
+{
+ iop3xx_map_io();
+ iotable_init(glantank_io_desc, ARRAY_SIZE(glantank_io_desc));
+}
+
+
+/*
+ * GLAN Tank PCI.
+ */
+#define INTA IRQ_IOP32X_XINT0
+#define INTB IRQ_IOP32X_XINT1
+#define INTC IRQ_IOP32X_XINT2
+#define INTD IRQ_IOP32X_XINT3
+
+static int __init
+glantank_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ static int pci_irq_table[][4] = {
+ /*
+ * PCI IDSEL/INTPIN->INTLINE
+ * A B C D
+ */
+ {INTD, INTD, INTD, INTD}, /* UART (8250) */
+ {INTA, INTA, INTA, INTA}, /* Ethernet (E1000) */
+ {INTB, INTB, INTB, INTB}, /* IDE (AEC6280R) */
+ {INTC, INTC, INTC, INTC}, /* USB (NEC) */
+ };
+
+ BUG_ON(pin < 1 || pin > 4);
+
+ return pci_irq_table[slot % 4][pin - 1];
+}
+
+static struct hw_pci glantank_pci __initdata = {
+ .nr_controllers = 1,
+ .ops = &iop3xx_ops,
+ .setup = iop3xx_pci_setup,
+ .preinit = iop3xx_pci_preinit,
+ .map_irq = glantank_pci_map_irq,
+};
+
+static int __init glantank_pci_init(void)
+{
+ if (machine_is_glantank())
+ pci_common_init(&glantank_pci);
+
+ return 0;
+}
+
+subsys_initcall(glantank_pci_init);
+
+
+/*
+ * GLAN Tank machine initialization.
+ */
+static struct physmap_flash_data glantank_flash_data = {
+ .width = 2,
+};
+
+static struct resource glantank_flash_resource = {
+ .start = 0xf0000000,
+ .end = 0xf007ffff,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device glantank_flash_device = {
+ .name = "physmap-flash",
+ .id = 0,
+ .dev = {
+ .platform_data = &glantank_flash_data,
+ },
+ .num_resources = 1,
+ .resource = &glantank_flash_resource,
+};
+
+static struct plat_serial8250_port glantank_serial_port[] = {
+ {
+ .mapbase = GLANTANK_UART,
+ .membase = (char *)GLANTANK_UART,
+ .irq = IRQ_IOP32X_XINT3,
+ .flags = UPF_SKIP_TEST,
+ .iotype = UPIO_MEM,
+ .regshift = 0,
+ .uartclk = 1843200,
+ },
+ { },
+};
+
+static struct resource glantank_uart_resource = {
+ .start = GLANTANK_UART,
+ .end = GLANTANK_UART + 7,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device glantank_serial_device = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = glantank_serial_port,
+ },
+ .num_resources = 1,
+ .resource = &glantank_uart_resource,
+};
+
+static struct f75375s_platform_data glantank_f75375s = {
+ .pwm = { 255, 255 },
+ .pwm_enable = { 0, 0 },
+};
+
+static struct i2c_board_info __initdata glantank_i2c_devices[] = {
+ {
+ I2C_BOARD_INFO("rs5c372a", 0x32),
+ },
+ {
+ I2C_BOARD_INFO("f75375", 0x2e),
+ .platform_data = &glantank_f75375s,
+ },
+};
+
+static void glantank_power_off(void)
+{
+ __raw_writeb(0x01, IOMEM(0xfe8d0004));
+
+ while (1)
+ ;
+}
+
+static void __init glantank_init_machine(void)
+{
+ register_iop32x_gpio();
+ gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup);
+ gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup);
+ platform_device_register(&iop3xx_i2c0_device);
+ platform_device_register(&iop3xx_i2c1_device);
+ platform_device_register(&glantank_flash_device);
+ platform_device_register(&glantank_serial_device);
+ platform_device_register(&iop3xx_dma_0_channel);
+ platform_device_register(&iop3xx_dma_1_channel);
+
+ i2c_register_board_info(0, glantank_i2c_devices,
+ ARRAY_SIZE(glantank_i2c_devices));
+
+ pm_power_off = glantank_power_off;
+}
+
+MACHINE_START(GLANTANK, "GLAN Tank")
+ /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
+ .atag_offset = 0x100,
+ .map_io = glantank_map_io,
+ .init_irq = iop32x_init_irq,
+ .init_time = glantank_timer_init,
+ .init_machine = glantank_init_machine,
+ .restart = iop3xx_restart,
+MACHINE_END