archives/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-03-07 23:04:33 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions
linux/arch/mips/alchemy/common/platform.c
Linus Torvalds bf4afc53b7 Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 
This was done entirely with mindless brute force, using

    git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
        xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'

to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.

Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.

For the same reason the 'flex' versions will be done as a separate
conversion.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21 17:09:51 -08:00

464 lines
12 KiB
C
Raw Blame History

/*
* Platform device support for Au1x00 SoCs.
*
* Copyright 2004, Matt Porter <mporter@kernel.crashing.org>
*
* (C) Copyright Embedded Alley Solutions, Inc 2005
* Author: Pantelis Antoniou <pantelis@embeddedalley.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <linux/slab.h>
#include <linux/usb/ehci_pdriver.h>
#include <linux/usb/ohci_pdriver.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-au1x00/au1xxx_dbdma.h>
#include <asm/mach-au1x00/au1100_mmc.h>
#include <asm/mach-au1x00/au1xxx_eth.h>
#include <prom.h>
static void alchemy_8250_pm(struct uart_port *port, unsigned int state,
unsigned int old_state)
{
#ifdef CONFIG_SERIAL_8250
switch (state) {
case 0:
alchemy_uart_enable(CPHYSADDR(port->membase));
serial8250_do_pm(port, state, old_state);
break;
case 3: /* power off */
serial8250_do_pm(port, state, old_state);
alchemy_uart_disable(CPHYSADDR(port->membase));
break;
default:
serial8250_do_pm(port, state, old_state);
break;
}
#endif
}
#define PORT(_base, _irq) \
{ \
.mapbase = _base, \
.mapsize = 0x1000, \
.irq = _irq, \
.regshift = 2, \
.flags = UPF_SKIP_TEST | UPF_IOREMAP | \
UPF_FIXED_TYPE, \
.type = PORT_16550A, \
.pm = alchemy_8250_pm, \
}
static struct plat_serial8250_port au1x00_uart_data[][4] __initdata = {
[ALCHEMY_CPU_AU1000] = {
PORT(AU1000_UART0_PHYS_ADDR, AU1000_UART0_INT),
PORT(AU1000_UART1_PHYS_ADDR, AU1000_UART1_INT),
PORT(AU1000_UART2_PHYS_ADDR, AU1000_UART2_INT),
PORT(AU1000_UART3_PHYS_ADDR, AU1000_UART3_INT),
},
[ALCHEMY_CPU_AU1500] = {
PORT(AU1000_UART0_PHYS_ADDR, AU1500_UART0_INT),
PORT(AU1000_UART3_PHYS_ADDR, AU1500_UART3_INT),
},
[ALCHEMY_CPU_AU1100] = {
PORT(AU1000_UART0_PHYS_ADDR, AU1100_UART0_INT),
PORT(AU1000_UART1_PHYS_ADDR, AU1100_UART1_INT),
PORT(AU1000_UART3_PHYS_ADDR, AU1100_UART3_INT),
},
[ALCHEMY_CPU_AU1550] = {
PORT(AU1000_UART0_PHYS_ADDR, AU1550_UART0_INT),
PORT(AU1000_UART1_PHYS_ADDR, AU1550_UART1_INT),
PORT(AU1000_UART3_PHYS_ADDR, AU1550_UART3_INT),
},
[ALCHEMY_CPU_AU1200] = {
PORT(AU1000_UART0_PHYS_ADDR, AU1200_UART0_INT),
PORT(AU1000_UART1_PHYS_ADDR, AU1200_UART1_INT),
},
[ALCHEMY_CPU_AU1300] = {
PORT(AU1300_UART0_PHYS_ADDR, AU1300_UART0_INT),
PORT(AU1300_UART1_PHYS_ADDR, AU1300_UART1_INT),
PORT(AU1300_UART2_PHYS_ADDR, AU1300_UART2_INT),
PORT(AU1300_UART3_PHYS_ADDR, AU1300_UART3_INT),
},
};
static struct platform_device au1xx0_uart_device = {
.name = "serial8250",
.id = PLAT8250_DEV_AU1X00,
};
static void __init alchemy_setup_uarts(int ctype)
{
long uartclk;
int s = sizeof(struct plat_serial8250_port);
int c = alchemy_get_uarts(ctype);
struct plat_serial8250_port *ports;
struct clk *clk = clk_get(NULL, ALCHEMY_PERIPH_CLK);
if (IS_ERR(clk))
return;
if (clk_prepare_enable(clk)) {
clk_put(clk);
return;
}
uartclk = clk_get_rate(clk);
clk_put(clk);
ports = kcalloc(s, (c + 1), GFP_KERNEL);
if (!ports) {
printk(KERN_INFO "Alchemy: no memory for UART data\n");
return;
}
memcpy(ports, au1x00_uart_data[ctype], s * c);
au1xx0_uart_device.dev.platform_data = ports;
/* Fill up uartclk. */
for (s = 0; s < c; s++) {
ports[s].uartclk = uartclk;
if (au_platform_setup(&ports[s]) < 0) {
kfree(ports);
printk(KERN_INFO "Alchemy: missing support for UARTs\n");
return;
}
}
if (platform_device_register(&au1xx0_uart_device))
printk(KERN_INFO "Alchemy: failed to register UARTs\n");
}
static u64 alchemy_all_dmamask = DMA_BIT_MASK(32);
/* Power on callback for the ehci platform driver */
static int alchemy_ehci_power_on(struct platform_device *pdev)
{
return alchemy_usb_control(ALCHEMY_USB_EHCI0, 1);
}
/* Power off/suspend callback for the ehci platform driver */
static void alchemy_ehci_power_off(struct platform_device *pdev)
{
alchemy_usb_control(ALCHEMY_USB_EHCI0, 0);
}
static struct usb_ehci_pdata alchemy_ehci_pdata = {
.no_io_watchdog = 1,
.power_on = alchemy_ehci_power_on,
.power_off = alchemy_ehci_power_off,
.power_suspend = alchemy_ehci_power_off,
};
/* Power on callback for the ohci platform driver */
static int alchemy_ohci_power_on(struct platform_device *pdev)
{
int unit;
unit = (pdev->id == 1) ?
ALCHEMY_USB_OHCI1 : ALCHEMY_USB_OHCI0;
return alchemy_usb_control(unit, 1);
}
/* Power off/suspend callback for the ohci platform driver */
static void alchemy_ohci_power_off(struct platform_device *pdev)
{
int unit;
unit = (pdev->id == 1) ?
ALCHEMY_USB_OHCI1 : ALCHEMY_USB_OHCI0;
alchemy_usb_control(unit, 0);
}
static struct usb_ohci_pdata alchemy_ohci_pdata = {
.power_on = alchemy_ohci_power_on,
.power_off = alchemy_ohci_power_off,
.power_suspend = alchemy_ohci_power_off,
};
static unsigned long alchemy_ohci_data[][2] __initdata = {
[ALCHEMY_CPU_AU1000] = { AU1000_USB_OHCI_PHYS_ADDR, AU1000_USB_HOST_INT },
[ALCHEMY_CPU_AU1500] = { AU1000_USB_OHCI_PHYS_ADDR, AU1500_USB_HOST_INT },
[ALCHEMY_CPU_AU1100] = { AU1000_USB_OHCI_PHYS_ADDR, AU1100_USB_HOST_INT },
[ALCHEMY_CPU_AU1550] = { AU1550_USB_OHCI_PHYS_ADDR, AU1550_USB_HOST_INT },
[ALCHEMY_CPU_AU1200] = { AU1200_USB_OHCI_PHYS_ADDR, AU1200_USB_INT },
[ALCHEMY_CPU_AU1300] = { AU1300_USB_OHCI0_PHYS_ADDR, AU1300_USB_INT },
};
static unsigned long alchemy_ehci_data[][2] __initdata = {
[ALCHEMY_CPU_AU1200] = { AU1200_USB_EHCI_PHYS_ADDR, AU1200_USB_INT },
[ALCHEMY_CPU_AU1300] = { AU1300_USB_EHCI_PHYS_ADDR, AU1300_USB_INT },
};
static int __init _new_usbres(struct resource **r, struct platform_device **d)
{
*r = kzalloc_objs(struct resource, 2);
if (!*r)
return -ENOMEM;
*d = kzalloc_obj(struct platform_device);
if (!*d) {
kfree(*r);
return -ENOMEM;
}
(*d)->dev.coherent_dma_mask = DMA_BIT_MASK(32);
(*d)->num_resources = 2;
(*d)->resource = *r;
return 0;
}
static void __init alchemy_setup_usb(int ctype)
{
struct resource *res;
struct platform_device *pdev;
/* setup OHCI0. Every variant has one */
if (_new_usbres(&res, &pdev))
return;
res[0].start = alchemy_ohci_data[ctype][0];
res[0].end = res[0].start + 0x100 - 1;
res[0].flags = IORESOURCE_MEM;
res[1].start = alchemy_ohci_data[ctype][1];
res[1].end = res[1].start;
res[1].flags = IORESOURCE_IRQ;
pdev->name = "ohci-platform";
pdev->id = 0;
pdev->dev.dma_mask = &alchemy_all_dmamask;
pdev->dev.platform_data = &alchemy_ohci_pdata;
if (platform_device_register(pdev))
printk(KERN_INFO "Alchemy USB: cannot add OHCI0\n");
/* setup EHCI0: Au1200/Au1300 */
if ((ctype == ALCHEMY_CPU_AU1200) || (ctype == ALCHEMY_CPU_AU1300)) {
if (_new_usbres(&res, &pdev))
return;
res[0].start = alchemy_ehci_data[ctype][0];
res[0].end = res[0].start + 0x100 - 1;
res[0].flags = IORESOURCE_MEM;
res[1].start = alchemy_ehci_data[ctype][1];
res[1].end = res[1].start;
res[1].flags = IORESOURCE_IRQ;
pdev->name = "ehci-platform";
pdev->id = 0;
pdev->dev.dma_mask = &alchemy_all_dmamask;
pdev->dev.platform_data = &alchemy_ehci_pdata;
if (platform_device_register(pdev))
printk(KERN_INFO "Alchemy USB: cannot add EHCI0\n");
}
/* Au1300: OHCI1 */
if (ctype == ALCHEMY_CPU_AU1300) {
if (_new_usbres(&res, &pdev))
return;
res[0].start = AU1300_USB_OHCI1_PHYS_ADDR;
res[0].end = res[0].start + 0x100 - 1;
res[0].flags = IORESOURCE_MEM;
res[1].start = AU1300_USB_INT;
res[1].end = res[1].start;
res[1].flags = IORESOURCE_IRQ;
pdev->name = "ohci-platform";
pdev->id = 1;
pdev->dev.dma_mask = &alchemy_all_dmamask;
pdev->dev.platform_data = &alchemy_ohci_pdata;
if (platform_device_register(pdev))
printk(KERN_INFO "Alchemy USB: cannot add OHCI1\n");
}
}
/* Macro to help defining the Ethernet MAC resources */
#define MAC_RES_COUNT 4 /* MAC regs, MAC en, MAC INT, MACDMA regs */
#define MAC_RES(_base, _enable, _irq, _macdma) \
{ \
.start = _base, \
.end = _base + 0xffff, \
.flags = IORESOURCE_MEM, \
}, \
{ \
.start = _enable, \
.end = _enable + 0x3, \
.flags = IORESOURCE_MEM, \
}, \
{ \
.start = _irq, \
.end = _irq, \
.flags = IORESOURCE_IRQ \
}, \
{ \
.start = _macdma, \
.end = _macdma + 0x1ff, \
.flags = IORESOURCE_MEM, \
}
static struct resource au1xxx_eth0_resources[][MAC_RES_COUNT] __initdata = {
[ALCHEMY_CPU_AU1000] = {
MAC_RES(AU1000_MAC0_PHYS_ADDR,
AU1000_MACEN_PHYS_ADDR,
AU1000_MAC0_DMA_INT,
AU1000_MACDMA0_PHYS_ADDR)
},
[ALCHEMY_CPU_AU1500] = {
MAC_RES(AU1500_MAC0_PHYS_ADDR,
AU1500_MACEN_PHYS_ADDR,
AU1500_MAC0_DMA_INT,
AU1000_MACDMA0_PHYS_ADDR)
},
[ALCHEMY_CPU_AU1100] = {
MAC_RES(AU1000_MAC0_PHYS_ADDR,
AU1000_MACEN_PHYS_ADDR,
AU1100_MAC0_DMA_INT,
AU1000_MACDMA0_PHYS_ADDR)
},
[ALCHEMY_CPU_AU1550] = {
MAC_RES(AU1000_MAC0_PHYS_ADDR,
AU1000_MACEN_PHYS_ADDR,
AU1550_MAC0_DMA_INT,
AU1000_MACDMA0_PHYS_ADDR)
},
};
static struct au1000_eth_platform_data au1xxx_eth0_platform_data = {
.phy1_search_mac0 = 1,
};
static struct platform_device au1xxx_eth0_device = {
.name = "au1000-eth",
.id = 0,
.num_resources = MAC_RES_COUNT,
.dev = {
.dma_mask = &alchemy_all_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &au1xxx_eth0_platform_data,
},
};
static struct resource au1xxx_eth1_resources[][MAC_RES_COUNT] __initdata = {
[ALCHEMY_CPU_AU1000] = {
MAC_RES(AU1000_MAC1_PHYS_ADDR,
AU1000_MACEN_PHYS_ADDR + 4,
AU1000_MAC1_DMA_INT,
AU1000_MACDMA1_PHYS_ADDR)
},
[ALCHEMY_CPU_AU1500] = {
MAC_RES(AU1500_MAC1_PHYS_ADDR,
AU1500_MACEN_PHYS_ADDR + 4,
AU1500_MAC1_DMA_INT,
AU1000_MACDMA1_PHYS_ADDR)
},
[ALCHEMY_CPU_AU1550] = {
MAC_RES(AU1000_MAC1_PHYS_ADDR,
AU1000_MACEN_PHYS_ADDR + 4,
AU1550_MAC1_DMA_INT,
AU1000_MACDMA1_PHYS_ADDR)
},
};
static struct au1000_eth_platform_data au1xxx_eth1_platform_data = {
.phy1_search_mac0 = 1,
};
static struct platform_device au1xxx_eth1_device = {
.name = "au1000-eth",
.id = 1,
.num_resources = MAC_RES_COUNT,
.dev = {
.dma_mask = &alchemy_all_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &au1xxx_eth1_platform_data,
},
};
void __init au1xxx_override_eth_cfg(unsigned int port,
struct au1000_eth_platform_data *eth_data)
{
if (!eth_data || port > 1)
return;
if (port == 0)
memcpy(&au1xxx_eth0_platform_data, eth_data,
sizeof(struct au1000_eth_platform_data));
else
memcpy(&au1xxx_eth1_platform_data, eth_data,
sizeof(struct au1000_eth_platform_data));
}
static void __init alchemy_setup_macs(int ctype)
{
int ret, i;
unsigned char ethaddr[6];
struct resource *macres;
/* Handle 1st MAC */
if (alchemy_get_macs(ctype) < 1)
return;
macres = kmemdup_array(au1xxx_eth0_resources[ctype], MAC_RES_COUNT,
sizeof(*macres), GFP_KERNEL);
if (!macres) {
printk(KERN_INFO "Alchemy: no memory for MAC0 resources\n");
return;
}
au1xxx_eth0_device.resource = macres;
i = prom_get_ethernet_addr(ethaddr);
if (!i && !is_valid_ether_addr(au1xxx_eth0_platform_data.mac))
memcpy(au1xxx_eth0_platform_data.mac, ethaddr, 6);
ret = platform_device_register(&au1xxx_eth0_device);
if (ret)
printk(KERN_INFO "Alchemy: failed to register MAC0\n");
/* Handle 2nd MAC */
if (alchemy_get_macs(ctype) < 2)
return;
macres = kmemdup_array(au1xxx_eth1_resources[ctype], MAC_RES_COUNT,
sizeof(*macres), GFP_KERNEL);
if (!macres) {
printk(KERN_INFO "Alchemy: no memory for MAC1 resources\n");
return;
}
au1xxx_eth1_device.resource = macres;
ethaddr[5] += 1; /* next addr for 2nd MAC */
if (!i && !is_valid_ether_addr(au1xxx_eth1_platform_data.mac))
memcpy(au1xxx_eth1_platform_data.mac, ethaddr, 6);
/* Register second MAC if enabled in pinfunc */
if (!(alchemy_rdsys(AU1000_SYS_PINFUNC) & SYS_PF_NI2)) {
ret = platform_device_register(&au1xxx_eth1_device);
if (ret)
printk(KERN_INFO "Alchemy: failed to register MAC1\n");
}
}
static int __init au1xxx_platform_init(void)
{
int ctype = alchemy_get_cputype();
alchemy_setup_uarts(ctype);
alchemy_setup_macs(ctype);
alchemy_setup_usb(ctype);
return 0;
}
arch_initcall(au1xxx_platform_init);
Reference in a new issue View git blame Copy permalink