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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e7b3dc7ef1
smc91x is shared between many different platforms. Each platform needs to specify the interrupt type, and in some cases the irq type depends on more than just the build configuration - it depends on runtime checks. Rather than throwing this code into the SMC_IRQ_FLAGS definition, provide a way for these flags to be passed via the IRQ resource itself. Note that IRQF_TRIGGER_* constants are intentionally defined to correspond with the IORESOURCE_IRQ_* interrupt type flags, in much the same way that the low bits of PCI iomem resources correspond with the BAR flag bits. Also provide a way to configure smc91x to read the IRQ flags from the resource. Once all platforms have been converted over (signified by all definitions of SMC_IRQ_FLAGS being -1) SMC_IRQ_FLAGS should be removed. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Nicolas Pitre <nico@cam.org> Acked-by: Jeff Garzik <jgarzik@redhat.com>
200 lines
4.3 KiB
C
200 lines
4.3 KiB
C
/*
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* linux/arch/arm/mach-pxa/idp.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Copyright (c) 2001 Cliff Brake, Accelent Systems Inc.
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*
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* 2001-09-13: Cliff Brake <cbrake@accelent.com>
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* Initial code
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*
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* 2005-02-15: Cliff Brake <cliff.brake@gmail.com>
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* <http://www.vibren.com> <http://bec-systems.com>
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* Updated for 2.6 kernel
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*
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*/
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/fb.h>
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#include <asm/setup.h>
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#include <asm/memory.h>
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#include <asm/mach-types.h>
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#include <asm/hardware.h>
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#include <asm/irq.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/arch/pxa-regs.h>
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#include <asm/arch/idp.h>
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#include <asm/arch/pxafb.h>
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#include <asm/arch/bitfield.h>
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#include <asm/arch/mmc.h>
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#include "generic.h"
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#include "devices.h"
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/* TODO:
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* - add pxa2xx_audio_ops_t device structure
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* - Ethernet interrupt
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*/
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static struct resource smc91x_resources[] = {
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[0] = {
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.start = (IDP_ETH_PHYS + 0x300),
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.end = (IDP_ETH_PHYS + 0xfffff),
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_GPIO(4),
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.end = IRQ_GPIO(4),
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
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}
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};
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static struct platform_device smc91x_device = {
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.name = "smc91x",
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.id = 0,
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.num_resources = ARRAY_SIZE(smc91x_resources),
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.resource = smc91x_resources,
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};
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static void idp_backlight_power(int on)
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{
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if (on) {
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IDP_CPLD_LCD |= (1<<1);
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} else {
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IDP_CPLD_LCD &= ~(1<<1);
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}
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}
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static void idp_vlcd(int on)
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{
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if (on) {
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IDP_CPLD_LCD |= (1<<2);
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} else {
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IDP_CPLD_LCD &= ~(1<<2);
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}
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}
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static void idp_lcd_power(int on, struct fb_var_screeninfo *var)
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{
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if (on) {
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IDP_CPLD_LCD |= (1<<0);
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} else {
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IDP_CPLD_LCD &= ~(1<<0);
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}
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/* call idp_vlcd for now as core driver does not support
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* both power and vlcd hooks. Note, this is not technically
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* the correct sequence, but seems to work. Disclaimer:
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* this may eventually damage the display.
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*/
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idp_vlcd(on);
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}
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static struct pxafb_mode_info sharp_lm8v31_mode = {
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.pixclock = 270000,
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.xres = 640,
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.yres = 480,
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.bpp = 16,
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.hsync_len = 1,
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.left_margin = 3,
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.right_margin = 3,
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.vsync_len = 1,
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.upper_margin = 0,
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.lower_margin = 0,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info sharp_lm8v31 = {
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.modes = &sharp_lm8v31_mode,
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.num_modes = 1,
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.cmap_inverse = 0,
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.cmap_static = 0,
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.lccr0 = LCCR0_SDS,
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.lccr3 = LCCR3_PCP | LCCR3_Acb(255),
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.pxafb_backlight_power = &idp_backlight_power,
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.pxafb_lcd_power = &idp_lcd_power
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};
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static int idp_mci_init(struct device *dev, irq_handler_t idp_detect_int, void *data)
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{
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/* setup GPIO for PXA25x MMC controller */
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pxa_gpio_mode(GPIO6_MMCCLK_MD);
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pxa_gpio_mode(GPIO8_MMCCS0_MD);
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return 0;
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}
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static struct pxamci_platform_data idp_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
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.init = idp_mci_init,
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};
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static void __init idp_init(void)
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{
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printk("idp_init()\n");
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platform_device_register(&smc91x_device);
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//platform_device_register(&mst_audio_device);
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set_pxa_fb_info(&sharp_lm8v31);
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pxa_set_mci_info(&idp_mci_platform_data);
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}
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static void __init idp_init_irq(void)
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{
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pxa25x_init_irq();
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set_irq_type(TOUCH_PANEL_IRQ, TOUCH_PANEL_IRQ_EDGE);
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}
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static struct map_desc idp_io_desc[] __initdata = {
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{
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.virtual = IDP_COREVOLT_VIRT,
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.pfn = __phys_to_pfn(IDP_COREVOLT_PHYS),
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.length = IDP_COREVOLT_SIZE,
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.type = MT_DEVICE
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}, {
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.virtual = IDP_CPLD_VIRT,
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.pfn = __phys_to_pfn(IDP_CPLD_PHYS),
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.length = IDP_CPLD_SIZE,
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.type = MT_DEVICE
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}
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};
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static void __init idp_map_io(void)
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{
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pxa_map_io();
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iotable_init(idp_io_desc, ARRAY_SIZE(idp_io_desc));
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// serial ports 2 & 3
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pxa_gpio_mode(GPIO42_BTRXD_MD);
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pxa_gpio_mode(GPIO43_BTTXD_MD);
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pxa_gpio_mode(GPIO44_BTCTS_MD);
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pxa_gpio_mode(GPIO45_BTRTS_MD);
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pxa_gpio_mode(GPIO46_STRXD_MD);
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pxa_gpio_mode(GPIO47_STTXD_MD);
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}
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MACHINE_START(PXA_IDP, "Vibren PXA255 IDP")
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/* Maintainer: Vibren Technologies */
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.phys_io = 0x40000000,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.map_io = idp_map_io,
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.init_irq = idp_init_irq,
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.timer = &pxa_timer,
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.init_machine = idp_init,
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MACHINE_END
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