OpenWrt – Rev 4
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/*
* ADM5120 generic platform devices
*
* Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/irq.h>
#include <linux/slab.h>
#include <linux/export.h>
#include <asm/bootinfo.h>
#include <asm/mach-adm5120/adm5120_defs.h>
#include <asm/mach-adm5120/adm5120_info.h>
#include <asm/mach-adm5120/adm5120_switch.h>
#include <asm/mach-adm5120/adm5120_nand.h>
#include <asm/mach-adm5120/adm5120_platform.h>
#if 1
/*
* TODO:remove global adm5120_eth* variables when the switch driver will be
* converted into a real platform driver
*/
unsigned int adm5120_eth_num_ports = 6;
EXPORT_SYMBOL_GPL(adm5120_eth_num_ports);
unsigned char adm5120_eth_macs[6][6] = {
{'\00', 'A', 'D', 'M', '\x51', '\x20' },
{'\00', 'A', 'D', 'M', '\x51', '\x21' },
{'\00', 'A', 'D', 'M', '\x51', '\x22' },
{'\00', 'A', 'D', 'M', '\x51', '\x23' },
{'\00', 'A', 'D', 'M', '\x51', '\x24' },
{'\00', 'A', 'D', 'M', '\x51', '\x25' }
};
EXPORT_SYMBOL_GPL(adm5120_eth_macs);
unsigned char adm5120_eth_vlans[6] = {
0x41, 0x42, 0x44, 0x48, 0x50, 0x60
};
EXPORT_SYMBOL_GPL(adm5120_eth_vlans);
#endif
void __init adm5120_setup_eth_macs(u8 *mac_base)
{
u32 t;
int i, j;
t = ((u32) mac_base[3] << 16) | ((u32) mac_base[4] << 8)
| ((u32) mac_base[5]);
for (i = 0; i < ARRAY_SIZE(adm5120_eth_macs); i++) {
for (j = 0; j < 3; j++)
adm5120_eth_macs[i][j] = mac_base[j];
adm5120_eth_macs[i][3] = (t >> 16) & 0xff;
adm5120_eth_macs[i][4] = (t >> 8) & 0xff;
adm5120_eth_macs[i][5] = t & 0xff;
t++;
}
}
/*
* Built-in ethernet switch
*/
struct resource adm5120_switch_resources[] = {
[0] = {
.start = ADM5120_SWITCH_BASE,
.end = ADM5120_SWITCH_BASE+ADM5120_SWITCH_SIZE-1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = ADM5120_IRQ_SWITCH,
.end = ADM5120_IRQ_SWITCH,
.flags = IORESOURCE_IRQ,
},
};
struct adm5120_switch_platform_data adm5120_switch_data;
struct platform_device adm5120_switch_device = {
.name = "adm5120-switch",
.id = -1,
.num_resources = ARRAY_SIZE(adm5120_switch_resources),
.resource = adm5120_switch_resources,
.dev.platform_data = &adm5120_switch_data,
};
void __init adm5120_add_device_switch(unsigned num_ports, u8 *vlan_map)
{
if (num_ports > 0)
adm5120_eth_num_ports = num_ports;
if (vlan_map)
memcpy(adm5120_eth_vlans, vlan_map, sizeof(adm5120_eth_vlans));
platform_device_register(&adm5120_switch_device);
}
/*
* USB Host Controller
*/
struct resource adm5120_hcd_resources[] = {
[0] = {
.start = ADM5120_USBC_BASE,
.end = ADM5120_USBC_BASE+ADM5120_USBC_SIZE-1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = ADM5120_IRQ_USBC,
.end = ADM5120_IRQ_USBC,
.flags = IORESOURCE_IRQ,
},
};
static u64 adm5120_hcd_dma_mask = DMA_BIT_MASK(24);
struct platform_device adm5120_hcd_device = {
.name = "adm5120-hcd",
.id = -1,
.num_resources = ARRAY_SIZE(adm5120_hcd_resources),
.resource = adm5120_hcd_resources,
.dev = {
.dma_mask = &adm5120_hcd_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(24),
}
};
void __init adm5120_add_device_usb(void)
{
platform_device_register(&adm5120_hcd_device);
}
/*
* NOR flash devices
*/
struct adm5120_flash_platform_data adm5120_flash0_data;
struct platform_device adm5120_flash0_device = {
.name = "adm5120-flash",
.id = 0,
.dev.platform_data = &adm5120_flash0_data,
};
struct adm5120_flash_platform_data adm5120_flash1_data;
struct platform_device adm5120_flash1_device = {
.name = "adm5120-flash",
.id = 1,
.dev.platform_data = &adm5120_flash1_data,
};
void __init adm5120_add_device_flash(unsigned id)
{
struct platform_device *pdev;
switch (id) {
case 0:
pdev = &adm5120_flash0_device;
break;
case 1:
pdev = &adm5120_flash1_device;
break;
default:
pdev = NULL;
break;
}
if (pdev)
platform_device_register(pdev);
}
/*
* built-in UARTs
*/
static void adm5120_uart_set_mctrl(struct amba_device *dev, void __iomem *base,
unsigned int mctrl)
{
}
struct amba_pl010_data adm5120_uart0_data = {
.set_mctrl = adm5120_uart_set_mctrl
};
struct amba_device adm5120_uart0_device = {
.dev = {
.init_name = "apb:uart0",
.platform_data = &adm5120_uart0_data,
},
.res = {
.start = ADM5120_UART0_BASE,
.end = ADM5120_UART0_BASE + ADM5120_UART_SIZE - 1,
.flags = IORESOURCE_MEM,
},
.irq = { ADM5120_IRQ_UART0, 0 },
.periphid = 0x0041010,
};
struct amba_pl010_data adm5120_uart1_data = {
.set_mctrl = adm5120_uart_set_mctrl
};
struct amba_device adm5120_uart1_device = {
.dev = {
.init_name = "apb:uart1",
.platform_data = &adm5120_uart1_data,
},
.res = {
.start = ADM5120_UART1_BASE,
.end = ADM5120_UART1_BASE + ADM5120_UART_SIZE - 1,
.flags = IORESOURCE_MEM,
},
.irq = { ADM5120_IRQ_UART1, 0 },
.periphid = 0x0041010,
};
void __init adm5120_add_device_uart(unsigned id)
{
struct amba_device *dev;
switch (id) {
case 0:
dev = &adm5120_uart0_device;
break;
case 1:
dev = &adm5120_uart1_device;
break;
default:
dev = NULL;
break;
}
if (dev)
amba_device_register(dev, &iomem_resource);
}
/*
* GPIO buttons
*/
void __init adm5120_register_gpio_buttons(int id,
unsigned poll_interval,
unsigned nbuttons,
struct gpio_keys_button *buttons)
{
struct platform_device *pdev;
struct gpio_keys_platform_data pdata;
struct gpio_keys_button *p;
int err;
p = kmemdup(buttons, nbuttons * sizeof(*p), GFP_KERNEL);
if (!p)
return;
pdev = platform_device_alloc("gpio-keys-polled", id);
if (!pdev)
goto err_free_buttons;
memset(&pdata, 0, sizeof(pdata));
pdata.poll_interval = poll_interval;
pdata.nbuttons = nbuttons;
pdata.buttons = p;
err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
if (err)
goto err_put_pdev;
err = platform_device_add(pdev);
if (err)
goto err_put_pdev;
return;
err_put_pdev:
platform_device_put(pdev);
err_free_buttons:
kfree(p);
}
/*
* GPIO LEDS
*/
struct gpio_led_platform_data adm5120_gpio_leds_data;
struct platform_device adm5120_gpio_leds_device = {
.name = "leds-gpio",
.id = -1,
.dev.platform_data = &adm5120_gpio_leds_data,
};
void __init adm5120_add_device_gpio_leds(unsigned num_leds,
struct gpio_led *leds)
{
struct gpio_led *p;
p = kmalloc(num_leds * sizeof(*p), GFP_KERNEL);
if (!p)
return;
memcpy(p, leds, num_leds * sizeof(*p));
adm5120_gpio_leds_data.num_leds = num_leds;
adm5120_gpio_leds_data.leds = p;
platform_device_register(&adm5120_gpio_leds_device);
}
/*
* NAND flash
*/
struct resource adm5120_nand_resources[] = {
[0] = {
.start = ADM5120_NAND_BASE,
.end = ADM5120_NAND_BASE + ADM5120_NAND_SIZE-1,
.flags = IORESOURCE_MEM,
},
};
static int adm5120_nand_ready(struct mtd_info *mtd)
{
return ((adm5120_nand_get_status() & ADM5120_NAND_STATUS_READY) != 0);
}
static void adm5120_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
unsigned int ctrl)
{
if (ctrl & NAND_CTRL_CHANGE) {
adm5120_nand_set_cle(ctrl & NAND_CLE);
adm5120_nand_set_ale(ctrl & NAND_ALE);
adm5120_nand_set_cen(ctrl & NAND_NCE);
}
if (cmd != NAND_CMD_NONE)
NAND_WRITE_REG(NAND_REG_DATA, cmd);
}
void __init adm5120_add_device_nand(struct platform_nand_data *pdata)
{
struct platform_device *pdev;
int err;
pdev = platform_device_alloc("gen_nand", -1);
if (!pdev)
goto err_out;
err = platform_device_add_resources(pdev, adm5120_nand_resources,
ARRAY_SIZE(adm5120_nand_resources));
if (err)
goto err_put;
err = platform_device_add_data(pdev, pdata, sizeof(*pdata));
if (err)
goto err_put;
pdata = pdev->dev.platform_data;
pdata->ctrl.dev_ready = adm5120_nand_ready;
pdata->ctrl.cmd_ctrl = adm5120_nand_cmd_ctrl;
err = platform_device_add(pdev);
if (err)
goto err_put;
return;
err_put:
platform_device_put(pdev);
err_out:
return;
}