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author | Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> | 2017-02-26 14:56:39 +0300 |
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committer | Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> | 2017-05-01 10:27:15 +0300 |
commit | 26202873bb51fafdaa51be3e8de7aab9beb49f70 (patch) | |
tree | c3ba9451f8fa93e6bd6347318375a7348ecb522f /arch/avr32/boards/favr-32/setup.c | |
parent | a351e9b9fc24e982ec2f0e76379a49826036da12 (diff) | |
download | linux-26202873bb51fafdaa51be3e8de7aab9beb49f70.tar.xz |
avr32: remove support for AVR32 architecture
This patch drops support for AVR32 architecture from the Linux kernel.
The AVR32 architecture is not keeping up with the development of the
kernel, and since it shares so much of the drivers with Atmel ARM SoC,
it is starting to hinder these drivers to develop swiftly.
Also, all AVR32 AP7 SoC processors are end of lifed from Atmel (now
Microchip).
Finally, the GCC toolchain is stuck at version 4.2.x, and has not
received any patches since the last release from Atmel;
4.2.4-atmel.1.1.3.avr32linux.1. When building kernel v4.10, this
toolchain is no longer able to properly link the network stack.
Haavard and I have came to the conclusion that we feel keeping AVR32 on
life support offers more obstacles for Atmel ARMs, than it gives joy to
AVR32 users. I also suspect there are very few AVR32 users left today,
if anybody at all.
Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Signed-off-by: HÃ¥vard Skinnemoen <hskinnemoen@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Diffstat (limited to 'arch/avr32/boards/favr-32/setup.c')
-rw-r--r-- | arch/avr32/boards/favr-32/setup.c | 366 |
1 files changed, 0 insertions, 366 deletions
diff --git a/arch/avr32/boards/favr-32/setup.c b/arch/avr32/boards/favr-32/setup.c deleted file mode 100644 index 234cb071c601..000000000000 --- a/arch/avr32/boards/favr-32/setup.c +++ /dev/null @@ -1,366 +0,0 @@ -/* - * Favr-32 board-specific setup code. - * - * Copyright (C) 2008 Atmel Corporation - * - * 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/clk.h> -#include <linux/etherdevice.h> -#include <linux/bootmem.h> -#include <linux/fb.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/types.h> -#include <linux/linkage.h> -#include <linux/gpio.h> -#include <linux/leds.h> -#include <linux/atmel-mci.h> -#include <linux/pwm.h> -#include <linux/pwm_backlight.h> -#include <linux/regulator/fixed.h> -#include <linux/regulator/machine.h> -#include <linux/spi/spi.h> -#include <linux/spi/ads7846.h> - -#include <sound/atmel-abdac.h> - -#include <video/atmel_lcdc.h> - -#include <asm/setup.h> - -#include <mach/at32ap700x.h> -#include <mach/init.h> -#include <mach/board.h> -#include <mach/portmux.h> - -#define PWM_BL_CH 2 - -/* Oscillator frequencies. These are board-specific */ -unsigned long at32_board_osc_rates[3] = { - [0] = 32768, /* 32.768 kHz on RTC osc */ - [1] = 20000000, /* 20 MHz on osc0 */ - [2] = 12000000, /* 12 MHz on osc1 */ -}; - -/* Initialized by bootloader-specific startup code. */ -struct tag *bootloader_tags __initdata; - -static struct atmel_abdac_pdata __initdata abdac0_data = { -}; - -struct eth_addr { - u8 addr[6]; -}; -static struct eth_addr __initdata hw_addr[1]; -static struct macb_platform_data __initdata eth_data[1] = { - { - .phy_mask = ~(1U << 1), - }, -}; - -static int ads7843_get_pendown_state(void) -{ - return !gpio_get_value(GPIO_PIN_PB(3)); -} - -static struct ads7846_platform_data ads7843_data = { - .model = 7843, - .get_pendown_state = ads7843_get_pendown_state, - .pressure_max = 255, - /* - * Values below are for debounce filtering, these can be experimented - * with further. - */ - .debounce_max = 20, - .debounce_rep = 4, - .debounce_tol = 5, - - .keep_vref_on = true, - .settle_delay_usecs = 500, - .penirq_recheck_delay_usecs = 100, -}; - -static struct spi_board_info __initdata spi1_board_info[] = { - { - /* ADS7843 touch controller */ - .modalias = "ads7846", - .max_speed_hz = 2000000, - .chip_select = 0, - .bus_num = 1, - .platform_data = &ads7843_data, - }, -}; - -static struct mci_platform_data __initdata mci0_data = { - .slot[0] = { - .bus_width = 4, - .detect_pin = -ENODEV, - .wp_pin = -ENODEV, - }, -}; - -static struct fb_videomode __initdata lb104v03_modes[] = { - { - .name = "640x480 @ 50", - .refresh = 50, - .xres = 640, .yres = 480, - .pixclock = KHZ2PICOS(25100), - - .left_margin = 90, .right_margin = 70, - .upper_margin = 30, .lower_margin = 15, - .hsync_len = 12, .vsync_len = 2, - - .sync = 0, - .vmode = FB_VMODE_NONINTERLACED, - }, -}; - -static struct fb_monspecs __initdata favr32_default_monspecs = { - .manufacturer = "LG", - .monitor = "LB104V03", - .modedb = lb104v03_modes, - .modedb_len = ARRAY_SIZE(lb104v03_modes), - .hfmin = 27273, - .hfmax = 31111, - .vfmin = 45, - .vfmax = 60, - .dclkmax = 28000000, -}; - -struct atmel_lcdfb_pdata __initdata favr32_lcdc_data = { - .default_bpp = 16, - .default_dmacon = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN, - .default_lcdcon2 = (ATMEL_LCDC_DISTYPE_TFT - | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE - | ATMEL_LCDC_MEMOR_BIG), - .default_monspecs = &favr32_default_monspecs, - .guard_time = 2, -}; - -static struct gpio_led favr32_leds[] = { - { - .name = "green", - .gpio = GPIO_PIN_PE(19), - .default_trigger = "heartbeat", - .active_low = 1, - }, - { - .name = "red", - .gpio = GPIO_PIN_PE(20), - .active_low = 1, - }, -}; - -static struct gpio_led_platform_data favr32_led_data = { - .num_leds = ARRAY_SIZE(favr32_leds), - .leds = favr32_leds, -}; - -static struct platform_device favr32_led_dev = { - .name = "leds-gpio", - .id = 0, - .dev = { - .platform_data = &favr32_led_data, - }, -}; - -/* - * The next two functions should go away as the boot loader is - * supposed to initialize the macb address registers with a valid - * ethernet address. But we need to keep it around for a while until - * we can be reasonably sure the boot loader does this. - * - * The phy_id is ignored as the driver will probe for it. - */ -static int __init parse_tag_ethernet(struct tag *tag) -{ - int i; - - i = tag->u.ethernet.mac_index; - if (i < ARRAY_SIZE(hw_addr)) - memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address, - sizeof(hw_addr[i].addr)); - - return 0; -} -__tagtable(ATAG_ETHERNET, parse_tag_ethernet); - -static void __init set_hw_addr(struct platform_device *pdev) -{ - struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - const u8 *addr; - void __iomem *regs; - struct clk *pclk; - - if (!res) - return; - if (pdev->id >= ARRAY_SIZE(hw_addr)) - return; - - addr = hw_addr[pdev->id].addr; - if (!is_valid_ether_addr(addr)) - return; - - /* - * Since this is board-specific code, we'll cheat and use the - * physical address directly as we happen to know that it's - * the same as the virtual address. - */ - regs = (void __iomem __force *)res->start; - pclk = clk_get(&pdev->dev, "pclk"); - if (IS_ERR(pclk)) - return; - - clk_enable(pclk); - __raw_writel((addr[3] << 24) | (addr[2] << 16) - | (addr[1] << 8) | addr[0], regs + 0x98); - __raw_writel((addr[5] << 8) | addr[4], regs + 0x9c); - clk_disable(pclk); - clk_put(pclk); -} - -void __init favr32_setup_leds(void) -{ - unsigned i; - - for (i = 0; i < ARRAY_SIZE(favr32_leds); i++) - at32_select_gpio(favr32_leds[i].gpio, AT32_GPIOF_OUTPUT); - - platform_device_register(&favr32_led_dev); -} - -static struct pwm_lookup pwm_lookup[] = { - PWM_LOOKUP("at91sam9rl-pwm", PWM_BL_CH, "pwm-backlight.0", NULL, - 5000, PWM_POLARITY_INVERSED), -}; - -static struct regulator_consumer_supply fixed_power_consumers[] = { - REGULATOR_SUPPLY("power", "pwm-backlight.0"), -}; - -static struct platform_pwm_backlight_data pwm_bl_data = { - .enable_gpio = GPIO_PIN_PA(28), - .max_brightness = 255, - .dft_brightness = 255, - .lth_brightness = 50, -}; - -static struct platform_device pwm_bl_device = { - .name = "pwm-backlight", - .dev = { - .platform_data = &pwm_bl_data, - }, -}; - -static void __init favr32_setup_atmel_pwm_bl(void) -{ - pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup)); - regulator_register_always_on(0, "fixed", fixed_power_consumers, - ARRAY_SIZE(fixed_power_consumers), 3300000); - platform_device_register(&pwm_bl_device); - at32_select_gpio(pwm_bl_data.enable_gpio, 0); -} - -void __init setup_board(void) -{ - at32_map_usart(3, 0, 0); /* USART 3 => /dev/ttyS0 */ - at32_setup_serial_console(0); -} - -static int __init set_abdac_rate(struct platform_device *pdev) -{ - int retval; - struct clk *osc1; - struct clk *pll1; - struct clk *abdac; - - if (pdev == NULL) - return -ENXIO; - - osc1 = clk_get(NULL, "osc1"); - if (IS_ERR(osc1)) { - retval = PTR_ERR(osc1); - goto out; - } - - pll1 = clk_get(NULL, "pll1"); - if (IS_ERR(pll1)) { - retval = PTR_ERR(pll1); - goto out_osc1; - } - - abdac = clk_get(&pdev->dev, "sample_clk"); - if (IS_ERR(abdac)) { - retval = PTR_ERR(abdac); - goto out_pll1; - } - - retval = clk_set_parent(pll1, osc1); - if (retval != 0) - goto out_abdac; - - /* - * Rate is 32000 to 50000 and ABDAC oversamples 256x. Multiply, in - * power of 2, to a value above 80 MHz. Power of 2 so it is possible - * for the generic clock to divide it down again and 80 MHz is the - * lowest frequency for the PLL. - */ - retval = clk_round_rate(pll1, - CONFIG_BOARD_FAVR32_ABDAC_RATE * 256 * 16); - if (retval <= 0) { - retval = -EINVAL; - goto out_abdac; - } - - retval = clk_set_rate(pll1, retval); - if (retval != 0) - goto out_abdac; - - retval = clk_set_parent(abdac, pll1); - if (retval != 0) - goto out_abdac; - -out_abdac: - clk_put(abdac); -out_pll1: - clk_put(pll1); -out_osc1: - clk_put(osc1); -out: - return retval; -} - -static int __init favr32_init(void) -{ - /* - * Favr-32 uses 32-bit SDRAM interface. Reserve the SDRAM-specific - * pins so that nobody messes with them. - */ - at32_reserve_pin(GPIO_PIOE_BASE, ATMEL_EBI_PE_DATA_ALL); - - at32_select_gpio(GPIO_PIN_PB(3), 0); /* IRQ from ADS7843 */ - - at32_add_device_usart(0); - - set_hw_addr(at32_add_device_eth(0, ð_data[0])); - - spi1_board_info[0].irq = gpio_to_irq(GPIO_PIN_PB(3)); - - set_abdac_rate(at32_add_device_abdac(0, &abdac0_data)); - - at32_add_device_pwm(1 << PWM_BL_CH); - at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info)); - at32_add_device_mci(0, &mci0_data); - at32_add_device_usba(0, NULL); - at32_add_device_lcdc(0, &favr32_lcdc_data, fbmem_start, fbmem_size, 0); - - favr32_setup_leds(); - - favr32_setup_atmel_pwm_bl(); - - return 0; -} -postcore_initcall(favr32_init); |