1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * platform.c: platform support for PNX833X.
5 * Copyright 2008 NXP Semiconductors
6 * Chris Steel <chris.steel@nxp.com>
7 * Daniel Laird <daniel.j.laird@nxp.com>
9 * Based on software written by:
10 * Nikita Youshchenko <yoush@debian.org>, based on PNX8550 code.
12 #include <linux/device.h>
13 #include <linux/dma-mapping.h>
14 #include <linux/platform_device.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/resource.h>
18 #include <linux/serial.h>
19 #include <linux/serial_pnx8xxx.h>
20 #include <linux/mtd/platnand.h>
23 #include <irq-mapping.h>
26 static u64 uart_dmamask = DMA_BIT_MASK(32);
28 static struct resource pnx833x_uart_resources[] = {
30 .start = PNX833X_UART0_PORTS_START,
31 .end = PNX833X_UART0_PORTS_END,
32 .flags = IORESOURCE_MEM,
35 .start = PNX833X_PIC_UART0_INT,
36 .end = PNX833X_PIC_UART0_INT,
37 .flags = IORESOURCE_IRQ,
40 .start = PNX833X_UART1_PORTS_START,
41 .end = PNX833X_UART1_PORTS_END,
42 .flags = IORESOURCE_MEM,
45 .start = PNX833X_PIC_UART1_INT,
46 .end = PNX833X_PIC_UART1_INT,
47 .flags = IORESOURCE_IRQ,
51 struct pnx8xxx_port pnx8xxx_ports[] = {
56 .membase = (void __iomem *)PNX833X_UART0_PORTS_START,
57 .mapbase = PNX833X_UART0_PORTS_START,
58 .irq = PNX833X_PIC_UART0_INT,
61 .flags = UPF_BOOT_AUTOCONF,
69 .membase = (void __iomem *)PNX833X_UART1_PORTS_START,
70 .mapbase = PNX833X_UART1_PORTS_START,
71 .irq = PNX833X_PIC_UART1_INT,
74 .flags = UPF_BOOT_AUTOCONF,
80 static struct platform_device pnx833x_uart_device = {
81 .name = "pnx8xxx-uart",
84 .dma_mask = &uart_dmamask,
85 .coherent_dma_mask = DMA_BIT_MASK(32),
86 .platform_data = pnx8xxx_ports,
88 .num_resources = ARRAY_SIZE(pnx833x_uart_resources),
89 .resource = pnx833x_uart_resources,
92 static u64 ehci_dmamask = DMA_BIT_MASK(32);
94 static struct resource pnx833x_usb_ehci_resources[] = {
96 .start = PNX833X_USB_PORTS_START,
97 .end = PNX833X_USB_PORTS_END,
98 .flags = IORESOURCE_MEM,
101 .start = PNX833X_PIC_USB_INT,
102 .end = PNX833X_PIC_USB_INT,
103 .flags = IORESOURCE_IRQ,
107 static struct platform_device pnx833x_usb_ehci_device = {
108 .name = "pnx833x-ehci",
111 .dma_mask = &ehci_dmamask,
112 .coherent_dma_mask = DMA_BIT_MASK(32),
114 .num_resources = ARRAY_SIZE(pnx833x_usb_ehci_resources),
115 .resource = pnx833x_usb_ehci_resources,
118 static u64 ethernet_dmamask = DMA_BIT_MASK(32);
120 static struct resource pnx833x_ethernet_resources[] = {
122 .start = PNX8335_IP3902_PORTS_START,
123 .end = PNX8335_IP3902_PORTS_END,
124 .flags = IORESOURCE_MEM,
126 #ifdef CONFIG_SOC_PNX8335
128 .start = PNX8335_PIC_ETHERNET_INT,
129 .end = PNX8335_PIC_ETHERNET_INT,
130 .flags = IORESOURCE_IRQ,
135 static struct platform_device pnx833x_ethernet_device = {
136 .name = "ip3902-eth",
139 .dma_mask = ðernet_dmamask,
140 .coherent_dma_mask = DMA_BIT_MASK(32),
142 .num_resources = ARRAY_SIZE(pnx833x_ethernet_resources),
143 .resource = pnx833x_ethernet_resources,
146 static struct resource pnx833x_sata_resources[] = {
148 .start = PNX8335_SATA_PORTS_START,
149 .end = PNX8335_SATA_PORTS_END,
150 .flags = IORESOURCE_MEM,
153 .start = PNX8335_PIC_SATA_INT,
154 .end = PNX8335_PIC_SATA_INT,
155 .flags = IORESOURCE_IRQ,
159 static struct platform_device pnx833x_sata_device = {
160 .name = "pnx833x-sata",
162 .num_resources = ARRAY_SIZE(pnx833x_sata_resources),
163 .resource = pnx833x_sata_resources,
167 pnx833x_flash_nand_cmd_ctrl(struct nand_chip *this, int cmd, unsigned int ctrl)
169 unsigned long nandaddr = (unsigned long)this->legacy.IO_ADDR_W;
171 if (cmd == NAND_CMD_NONE)
175 writeb(cmd, (void __iomem *)(nandaddr + PNX8335_NAND_CLE_MASK));
177 writeb(cmd, (void __iomem *)(nandaddr + PNX8335_NAND_ALE_MASK));
180 static struct platform_nand_data pnx833x_flash_nand_data = {
186 .cmd_ctrl = pnx833x_flash_nand_cmd_ctrl
191 * Set start to be the correct address (PNX8335_NAND_BASE with no 0xb!!),
192 * 12 bytes more seems to be the standard that allows for NAND access.
194 static struct resource pnx833x_flash_nand_resource = {
195 .start = PNX8335_NAND_BASE,
196 .end = PNX8335_NAND_BASE + 12,
197 .flags = IORESOURCE_MEM,
200 static struct platform_device pnx833x_flash_nand = {
204 .resource = &pnx833x_flash_nand_resource,
206 .platform_data = &pnx833x_flash_nand_data,
210 static struct platform_device *pnx833x_platform_devices[] __initdata = {
211 &pnx833x_uart_device,
212 &pnx833x_usb_ehci_device,
213 &pnx833x_ethernet_device,
214 &pnx833x_sata_device,
218 static int __init pnx833x_platform_init(void)
220 return platform_add_devices(pnx833x_platform_devices,
221 ARRAY_SIZE(pnx833x_platform_devices));
224 arch_initcall(pnx833x_platform_init);