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![Linus Torvalds](/assets/img/avatar_default.png)
SoC platform changes. Main theme this merge window: - The Netx platform (Netx 100/500) platform is removed by Linus Walleij-- the SoC doesn't have active maintainers with hardware, and in discussions with the vendor the agreement was that it's OK to remove. - Russell King has a series of patches that cleans up and refactors SA1101 and RiscPC support. -----BEGIN PGP SIGNATURE----- iQJDBAABCAAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAl0yKOgPHG9sb2ZAbGl4 b20ubmV0AAoJEIwa5zzehBx3SNEP/iJsMeeunX0P7Ym3zNFjykhspkkUmo7sEKuz NBcexnQpkm+OLgjfwT7j3kXvOs4mzMzH56J6h7dEDSHbQP1MDIgpMw6OEzMMsQTV XL1AWz1IO7Sq/mG17daPs9c75o6NYQ7pSEd/ncbjKuJQOpGsi4DyrVrhk9WdzYl2 hcs4XOzOMZgDTsXHVdWkfpHazpWxEXPCD7v5bt6ueU0YnT3csUbzOTTvw+55JxRV fYz0lg4wTMRYMQMOejpx1HXwdmbVOHLUYkCxcLUaVqMnm88q/IddJVklBbPGWAU5 Z4gFpL+FxcFhEZtu28CoubPYzf/mHDk8Ry2UWwBiRwiGoKfblomI1fpnbyrX53aE lpO5p7MfOVVV2WNxpbUND+ilbgKOREfRHd314GLPUjwudp2sTuDRZ1GAbt3JwsIM L1HesyjCtb6itCSwGsmmGsX2Wvu+WT7slpsYwHs2qklE/X1zQq0R4Jf2xUNpwqPb FqGZAtc6CCQtyF/Mcpp6OQd+cV0tgQVIw7teKol/xR1dSzN/+1zO1J9UHk9/dWUU sb5lGa/AtBrIbWxS1qLuA5bgyDqxXYDZi0y/Bu1qMHYebRW37z9kvomtzBiMNX2o SAxvr9iGPlTxTjGjRCyBVFmsbCMYLabNoL9tuuXvo+DnjFoOilTef+qePOv7ZYZX kwUyS2eu =FX6e -----END PGP SIGNATURE----- Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC platform updates from Olof Johansson: "SoC platform changes. Main theme this merge window: - The Netx platform (Netx 100/500) platform is removed by Linus Walleij-- the SoC doesn't have active maintainers with hardware, and in discussions with the vendor the agreement was that it's OK to remove. - Russell King has a series of patches that cleans up and refactors SA1101 and RiscPC support" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (47 commits) ARM: stm32: use "depends on" instead of "if" after prompt ARM: sa1100: convert to common clock framework ARM: exynos: Cleanup cppcheck shifting warning ARM: pxa/lubbock: remove lubbock_set_misc_wr() from global view ARM: exynos: Only build MCPM support if used arm: add missing include platform-data/atmel.h ARM: davinci: Use GPIO lookup table for DA850 LEDs ARM: OMAP2: drop explicit assembler architecture ARM: use arch_extension directive instead of arch argument ARM: imx: Switch imx7d to imx-cpufreq-dt for speed-grading ARM: bcm: Enable PINCTRL for ARCH_BRCMSTB ARM: bcm: Enable ARCH_HAS_RESET_CONTROLLER for ARCH_BRCMSTB ARM: riscpc: enable chained scatterlist support ARM: riscpc: reduce IRQ handling code ARM: riscpc: move RiscPC assembly files from arch/arm/lib to mach-rpc ARM: riscpc: parse video information from tagged list ARM: riscpc: add ecard quirk for Atomwide 3port serial card MAINTAINERS: mvebu: Add git entry soc: ti: pm33xx: Add a print while entering RTC only mode with DDR in self-refresh ARM: OMAP2+: Make some variables static ...
288 lines
6.6 KiB
C
288 lines
6.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Support for Compaq iPAQ H3100 and H3600 handheld computers (common code)
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*
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* Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks)
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* Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru>
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*/
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#include <linux/kernel.h>
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#include <linux/gpio/machine.h>
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#include <linux/gpio.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/platform_data/gpio-htc-egpio.h>
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#include <linux/platform_data/sa11x0-serial.h>
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#include <linux/platform_device.h>
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#include <linux/serial_core.h>
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#include <asm/mach/flash.h>
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#include <asm/mach/map.h>
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#include <mach/h3xxx.h>
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#include <mach/irqs.h>
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#include "generic.h"
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/*
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* H3xxx flash support
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*/
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static struct mtd_partition h3xxx_partitions[] = {
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{
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.name = "H3XXX boot firmware",
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.size = 0x00040000,
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.offset = 0,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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}, {
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.name = "H3XXX rootfs",
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.size = MTDPART_SIZ_FULL,
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.offset = 0x00040000,
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}
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};
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static void h3xxx_set_vpp(int vpp)
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{
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gpio_set_value(H3XXX_EGPIO_VPP_ON, vpp);
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}
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static int h3xxx_flash_init(void)
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{
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int err = gpio_request(H3XXX_EGPIO_VPP_ON, "Flash Vpp");
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if (err) {
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pr_err("%s: can't request H3XXX_EGPIO_VPP_ON\n", __func__);
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return err;
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}
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err = gpio_direction_output(H3XXX_EGPIO_VPP_ON, 0);
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if (err)
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gpio_free(H3XXX_EGPIO_VPP_ON);
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return err;
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}
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static void h3xxx_flash_exit(void)
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{
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gpio_free(H3XXX_EGPIO_VPP_ON);
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}
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static struct flash_platform_data h3xxx_flash_data = {
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.map_name = "cfi_probe",
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.set_vpp = h3xxx_set_vpp,
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.init = h3xxx_flash_init,
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.exit = h3xxx_flash_exit,
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.parts = h3xxx_partitions,
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.nr_parts = ARRAY_SIZE(h3xxx_partitions),
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};
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static struct resource h3xxx_flash_resource =
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DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M);
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/*
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* H3xxx uart support
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*/
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static void h3xxx_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
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{
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if (port->mapbase == _Ser3UTCR0) {
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if (!gpio_request(H3XXX_EGPIO_RS232_ON, "RS232 transceiver")) {
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gpio_direction_output(H3XXX_EGPIO_RS232_ON, !state);
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gpio_free(H3XXX_EGPIO_RS232_ON);
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} else {
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pr_err("%s: can't request H3XXX_EGPIO_RS232_ON\n",
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__func__);
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}
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}
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}
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/*
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* Enable/Disable wake up events for this serial port.
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* Obviously, we only support this on the normal COM port.
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*/
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static int h3xxx_uart_set_wake(struct uart_port *port, u_int enable)
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{
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int err = -EINVAL;
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if (port->mapbase == _Ser3UTCR0) {
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if (enable)
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PWER |= PWER_GPIO23 | PWER_GPIO25; /* DCD and CTS */
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else
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PWER &= ~(PWER_GPIO23 | PWER_GPIO25); /* DCD and CTS */
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err = 0;
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}
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return err;
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}
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static struct sa1100_port_fns h3xxx_port_fns __initdata = {
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.pm = h3xxx_uart_pm,
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.set_wake = h3xxx_uart_set_wake,
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};
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static struct gpiod_lookup_table h3xxx_uart3_gpio_table = {
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.dev_id = "sa11x0-uart.3",
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.table = {
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GPIO_LOOKUP("gpio", H3XXX_GPIO_COM_DCD, "dcd", GPIO_ACTIVE_LOW),
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GPIO_LOOKUP("gpio", H3XXX_GPIO_COM_CTS, "cts", GPIO_ACTIVE_LOW),
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GPIO_LOOKUP("gpio", H3XXX_GPIO_COM_RTS, "rts", GPIO_ACTIVE_LOW),
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{ },
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},
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};
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/*
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* EGPIO
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*/
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static struct resource egpio_resources[] = {
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[0] = DEFINE_RES_MEM(H3600_EGPIO_PHYS, 0x4),
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};
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static struct htc_egpio_chip egpio_chips[] = {
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[0] = {
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.reg_start = 0,
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.gpio_base = H3XXX_EGPIO_BASE,
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.num_gpios = 16,
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.direction = HTC_EGPIO_OUTPUT,
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.initial_values = 0x0080, /* H3XXX_EGPIO_RS232_ON */
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},
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};
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static struct htc_egpio_platform_data egpio_info = {
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.reg_width = 16,
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.bus_width = 16,
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.chip = egpio_chips,
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.num_chips = ARRAY_SIZE(egpio_chips),
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};
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static struct platform_device h3xxx_egpio = {
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.name = "htc-egpio",
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.id = -1,
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.resource = egpio_resources,
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.num_resources = ARRAY_SIZE(egpio_resources),
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.dev = {
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.platform_data = &egpio_info,
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},
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};
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/*
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* GPIO keys
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*/
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static struct gpio_keys_button h3xxx_button_table[] = {
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{
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.code = KEY_POWER,
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.gpio = H3XXX_GPIO_PWR_BUTTON,
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.desc = "Power Button",
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.active_low = 1,
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.type = EV_KEY,
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.wakeup = 1,
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}, {
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.code = KEY_ENTER,
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.gpio = H3XXX_GPIO_ACTION_BUTTON,
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.active_low = 1,
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.desc = "Action button",
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.type = EV_KEY,
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.wakeup = 0,
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},
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};
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static struct gpio_keys_platform_data h3xxx_keys_data = {
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.buttons = h3xxx_button_table,
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.nbuttons = ARRAY_SIZE(h3xxx_button_table),
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};
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static struct platform_device h3xxx_keys = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &h3xxx_keys_data,
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},
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};
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static struct resource h3xxx_micro_resources[] = {
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DEFINE_RES_MEM(0x80010000, SZ_4K),
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DEFINE_RES_MEM(0x80020000, SZ_4K),
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DEFINE_RES_IRQ(IRQ_Ser1UART),
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};
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struct platform_device h3xxx_micro_asic = {
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.name = "ipaq-h3xxx-micro",
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.id = -1,
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.resource = h3xxx_micro_resources,
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.num_resources = ARRAY_SIZE(h3xxx_micro_resources),
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};
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static struct platform_device *h3xxx_devices[] = {
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&h3xxx_egpio,
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&h3xxx_keys,
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&h3xxx_micro_asic,
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};
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static struct gpiod_lookup_table h3xxx_pcmcia_gpio_table = {
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.dev_id = "sa11x0-pcmcia",
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.table = {
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GPIO_LOOKUP("gpio", H3XXX_GPIO_PCMCIA_CD0,
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"pcmcia0-detect", GPIO_ACTIVE_LOW),
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GPIO_LOOKUP("gpio", H3XXX_GPIO_PCMCIA_IRQ0,
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"pcmcia0-ready", GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP("gpio", H3XXX_GPIO_PCMCIA_CD1,
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"pcmcia1-detect", GPIO_ACTIVE_LOW),
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GPIO_LOOKUP("gpio", H3XXX_GPIO_PCMCIA_IRQ1,
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"pcmcia1-ready", GPIO_ACTIVE_HIGH),
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{ },
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},
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};
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void __init h3xxx_mach_init(void)
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{
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gpiod_add_lookup_table(&h3xxx_pcmcia_gpio_table);
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gpiod_add_lookup_table(&h3xxx_uart3_gpio_table);
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sa1100_register_uart_fns(&h3xxx_port_fns);
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sa11x0_register_mtd(&h3xxx_flash_data, &h3xxx_flash_resource, 1);
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platform_add_devices(h3xxx_devices, ARRAY_SIZE(h3xxx_devices));
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}
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static struct map_desc h3600_io_desc[] __initdata = {
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{ /* static memory bank 2 CS#2 */
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.virtual = H3600_BANK_2_VIRT,
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.pfn = __phys_to_pfn(SA1100_CS2_PHYS),
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.length = 0x02800000,
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.type = MT_DEVICE
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}, { /* static memory bank 4 CS#4 */
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.virtual = H3600_BANK_4_VIRT,
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.pfn = __phys_to_pfn(SA1100_CS4_PHYS),
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.length = 0x00800000,
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.type = MT_DEVICE
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}, { /* EGPIO 0 CS#5 */
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.virtual = H3600_EGPIO_VIRT,
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.pfn = __phys_to_pfn(H3600_EGPIO_PHYS),
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.length = 0x01000000,
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.type = MT_DEVICE
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}
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};
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/*
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* Common map_io initialization
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*/
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void __init h3xxx_map_io(void)
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{
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sa1100_map_io();
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iotable_init(h3600_io_desc, ARRAY_SIZE(h3600_io_desc));
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sa1100_register_uart(0, 3); /* Common serial port */
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// sa1100_register_uart(1, 1); /* Microcontroller on 3100/3600 */
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/* Ensure those pins are outputs and driving low */
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PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
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PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
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/* Configure suspend conditions */
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PGSR = 0;
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PCFR = PCFR_OPDE;
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PSDR = 0;
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GPCR = 0x0fffffff; /* All outputs are set low by default */
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GPDR = 0; /* Configure all GPIOs as input */
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}
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