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142 lines
2.6 KiB
142 lines
2.6 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* NEC VR4100 series SIU platform device. |
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* |
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* Copyright (C) 2007-2008 Yoichi Yuasa <[email protected]> |
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*/ |
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#include <linux/errno.h> |
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#include <linux/init.h> |
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#include <linux/ioport.h> |
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#include <linux/platform_device.h> |
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#include <linux/serial_core.h> |
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#include <linux/irq.h> |
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#include <asm/cpu.h> |
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#include <asm/vr41xx/siu.h> |
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static unsigned int siu_type1_ports[SIU_PORTS_MAX] __initdata = { |
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PORT_VR41XX_SIU, |
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PORT_UNKNOWN, |
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}; |
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static struct resource siu_type1_resource[] __initdata = { |
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{ |
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.start = 0x0c000000, |
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.end = 0x0c00000a, |
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.flags = IORESOURCE_MEM, |
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}, |
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{ |
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.start = SIU_IRQ, |
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.end = SIU_IRQ, |
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.flags = IORESOURCE_IRQ, |
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}, |
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}; |
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static unsigned int siu_type2_ports[SIU_PORTS_MAX] __initdata = { |
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PORT_VR41XX_SIU, |
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PORT_VR41XX_DSIU, |
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}; |
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static struct resource siu_type2_resource[] __initdata = { |
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{ |
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.start = 0x0f000800, |
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.end = 0x0f00080a, |
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.flags = IORESOURCE_MEM, |
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}, |
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{ |
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.start = 0x0f000820, |
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.end = 0x0f000829, |
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.flags = IORESOURCE_MEM, |
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}, |
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{ |
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.start = SIU_IRQ, |
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.end = SIU_IRQ, |
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.flags = IORESOURCE_IRQ, |
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}, |
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{ |
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.start = DSIU_IRQ, |
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.end = DSIU_IRQ, |
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.flags = IORESOURCE_IRQ, |
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}, |
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}; |
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static int __init vr41xx_siu_add(void) |
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{ |
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struct platform_device *pdev; |
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struct resource *res; |
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unsigned int num; |
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int retval; |
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pdev = platform_device_alloc("SIU", -1); |
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if (!pdev) |
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return -ENOMEM; |
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switch (current_cpu_type()) { |
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case CPU_VR4111: |
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case CPU_VR4121: |
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pdev->dev.platform_data = siu_type1_ports; |
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res = siu_type1_resource; |
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num = ARRAY_SIZE(siu_type1_resource); |
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break; |
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case CPU_VR4122: |
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case CPU_VR4131: |
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case CPU_VR4133: |
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pdev->dev.platform_data = siu_type2_ports; |
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res = siu_type2_resource; |
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num = ARRAY_SIZE(siu_type2_resource); |
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break; |
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default: |
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retval = -ENODEV; |
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goto err_free_device; |
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} |
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retval = platform_device_add_resources(pdev, res, num); |
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if (retval) |
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goto err_free_device; |
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retval = platform_device_add(pdev); |
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if (retval) |
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goto err_free_device; |
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return 0; |
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err_free_device: |
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platform_device_put(pdev); |
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return retval; |
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} |
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device_initcall(vr41xx_siu_add); |
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void __init vr41xx_siu_setup(void) |
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{ |
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struct uart_port port; |
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struct resource *res; |
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unsigned int *type; |
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int i; |
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switch (current_cpu_type()) { |
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case CPU_VR4111: |
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case CPU_VR4121: |
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type = siu_type1_ports; |
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res = siu_type1_resource; |
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break; |
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case CPU_VR4122: |
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case CPU_VR4131: |
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case CPU_VR4133: |
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type = siu_type2_ports; |
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res = siu_type2_resource; |
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break; |
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default: |
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return; |
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} |
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for (i = 0; i < SIU_PORTS_MAX; i++) { |
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port.line = i; |
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port.type = type[i]; |
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if (port.type == PORT_UNKNOWN) |
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break; |
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port.mapbase = res[i].start; |
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port.membase = (unsigned char __iomem *)KSEG1ADDR(res[i].start); |
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vr41xx_siu_early_setup(&port); |
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} |
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}
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