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openwrt/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c
Koen Vandeputte 347884b345 cns3xxx: fix UART resource overlap 
Port 1 registers the same IO resources as port 2 in the kernel resource
tree, which is wrong.
Fix this by using it's own resources as indicated in the overview
(cns3xxx.h).

Compiled & Tested on several GW2388-4 laguna boards which utilizes all 3
ports.

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2016-11-05 10:18:27 +01:00

1122 lines
30 KiB
C
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/*
* Gateworks Corporation Laguna Platform
*
* Copyright 2000 Deep Blue Solutions Ltd
* Copyright 2008 ARM Limited
* Copyright 2008 Cavium Networks
* Scott Shu
* Copyright 2010 MontaVista Software, LLC.
* Anton Vorontsov <avorontsov@mvista.com>
* Copyright 2011 Gateworks Corporation
* Chris Lang <clang@gateworks.com>
* Copyright 2012-2013 Gateworks Corporation
* Tim Harvey <tharvey@gateworks.com>
*
* This file 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/compiler.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/gpio.h>
#include <linux/dma-mapping.h>
#include <linux/serial_core.h>
#include <linux/serial_8250.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>
#include <linux/leds.h>
#include <linux/i2c.h>
#include <linux/platform_data/at24.h>
#include <linux/platform_data/pca953x.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <linux/if_ether.h>
#include <linux/pps-gpio.h>
#include <linux/usb/ehci_pdriver.h>
#include <linux/usb/ohci_pdriver.h>
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#include <linux/platform_data/cns3xxx.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <mach/gpio.h>
#include "core.h"
#include "devices.h"
#include "cns3xxx.h"
#include "pm.h"
#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)
// Config 1 Bitmap
#define ETH0_LOAD BIT(0)
#define ETH1_LOAD BIT(1)
#define ETH2_LOAD BIT(2)
#define SATA0_LOAD BIT(3)
#define SATA1_LOAD BIT(4)
#define PCM_LOAD BIT(5)
#define I2S_LOAD BIT(6)
#define SPI0_LOAD BIT(7)
#define SPI1_LOAD BIT(8)
#define PCIE0_LOAD BIT(9)
#define PCIE1_LOAD BIT(10)
#define USB0_LOAD BIT(11)
#define USB1_LOAD BIT(12)
#define USB1_ROUTE BIT(13)
#define SD_LOAD BIT(14)
#define UART0_LOAD BIT(15)
#define UART1_LOAD BIT(16)
#define UART2_LOAD BIT(17)
#define MPCI0_LOAD BIT(18)
#define MPCI1_LOAD BIT(19)
#define MPCI2_LOAD BIT(20)
#define MPCI3_LOAD BIT(21)
#define FP_BUT_LOAD BIT(22)
#define FP_BUT_HEADER_LOAD BIT(23)
#define FP_LED_LOAD BIT(24)
#define FP_LED_HEADER_LOAD BIT(25)
#define FP_TAMPER_LOAD BIT(26)
#define HEADER_33V_LOAD BIT(27)
#define SATA_POWER_LOAD BIT(28)
#define FP_POWER_LOAD BIT(29)
#define GPIO_HEADER_LOAD BIT(30)
#define GSP_BAT_LOAD BIT(31)
// Config 2 Bitmap
#define FAN_LOAD BIT(0)
#define SPI_FLASH_LOAD BIT(1)
#define NOR_FLASH_LOAD BIT(2)
#define GPS_LOAD BIT(3)
#define SUPPLY_5V_LOAD BIT(6)
#define SUPPLY_33V_LOAD BIT(7)
struct laguna_board_info {
char model[16];
u32 config_bitmap;
u32 config2_bitmap;
u8 nor_flash_size;
u8 spi_flash_size;
};
static struct laguna_board_info laguna_info __initdata;
/*
* NOR Flash
*/
static struct mtd_partition laguna_nor_partitions[] = {
{
.name = "uboot",
.size = SZ_256K,
.offset = 0,
.mask_flags = MTD_WRITEABLE,
}, {
.name = "params",
.size = SZ_128K,
.offset = SZ_256K,
}, {
.name = "firmware",
.offset = SZ_256K + SZ_128K,
},
};
static struct physmap_flash_data laguna_nor_pdata = {
.width = 2,
.parts = laguna_nor_partitions,
.nr_parts = ARRAY_SIZE(laguna_nor_partitions),
};
static struct resource laguna_nor_res = {
.start = CNS3XXX_FLASH_BASE,
.end = CNS3XXX_FLASH_BASE + SZ_128M - 1,
.flags = IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
};
static struct platform_device laguna_nor_pdev = {
.name = "physmap-flash",
.id = 0,
.resource = &laguna_nor_res,
.num_resources = 1,
.dev = {
.platform_data = &laguna_nor_pdata,
},
};
/*
* SPI
*/
static struct mtd_partition laguna_spi_partitions[] = {
{
.name = "uboot",
.size = SZ_256K,
.offset = 0,
.mask_flags = MTD_WRITEABLE,
}, {
.name = "params",
.size = SZ_256K,
.offset = SZ_256K,
}, {
.name = "firmware",
.offset = SZ_512K,
},
};
static struct flash_platform_data laguna_spi_pdata = {
.parts = laguna_spi_partitions,
.nr_parts = ARRAY_SIZE(laguna_spi_partitions),
};
static struct spi_board_info __initdata laguna_spi_devices[] = {
{
.modalias = "m25p80",
.platform_data = &laguna_spi_pdata,
.max_speed_hz = 50000000,
.bus_num = 1,
.chip_select = 0,
},
};
static struct resource laguna_spi_resource = {
.start = CNS3XXX_SSP_BASE + 0x40,
.end = CNS3XXX_SSP_BASE + 0x6f,
.flags = IORESOURCE_MEM,
};
static struct platform_device laguna_spi_controller = {
.name = "cns3xxx_spi",
.resource = &laguna_spi_resource,
.num_resources = 1,
};
/*
* LED's
*/
static struct gpio_led laguna_gpio_leds[] = {
{
.name = "user1", /* Green Led */
.gpio = 115,
.active_low = 1,
},{
.name = "user2", /* Red Led */
.gpio = 114,
.active_low = 1,
},{
.name = "pwr1", /* Green Led */
.gpio = 116,
.active_low = 1,
},{
.name = "pwr2", /* Yellow Led */
.gpio = 117,
.active_low = 1,
},{
.name = "txd1", /* Green Led */
.gpio = 118,
.active_low = 1,
},{
.name = "txd2", /* Yellow Led */
.gpio = 119,
.active_low = 1,
},{
.name = "rxd1", /* Green Led */
.gpio = 120,
.active_low = 1,
},{
.name = "rxd2", /* Yellow Led */
.gpio = 121,
.active_low = 1,
},{
.name = "ser1", /* Green Led */
.gpio = 122,
.active_low = 1,
},{
.name = "ser2", /* Yellow Led */
.gpio = 123,
.active_low = 1,
},{
.name = "enet1", /* Green Led */
.gpio = 124,
.active_low = 1,
},{
.name = "enet2", /* Yellow Led */
.gpio = 125,
.active_low = 1,
},{
.name = "sig1_1", /* Green Led */
.gpio = 126,
.active_low = 1,
},{
.name = "sig1_2", /* Yellow Led */
.gpio = 127,
.active_low = 1,
},{
.name = "sig2_1", /* Green Led */
.gpio = 128,
.active_low = 1,
},{
.name = "sig2_2", /* Yellow Led */
.gpio = 129,
.active_low = 1,
},{
.name = "sig3_1", /* Green Led */
.gpio = 130,
.active_low = 1,
},{
.name = "sig3_2", /* Yellow Led */
.gpio = 131,
.active_low = 1,
},{
.name = "net1", /*Green Led */
.gpio = 109,
.active_low = 1,
},{
.name = "net2", /* Red Led */
.gpio = 110,
.active_low = 1,
},{
.name = "mod1", /* Green Led */
.gpio = 111,
.active_low = 1,
},{
.name = "mod2", /* Red Led */
.gpio = 112,
.active_low = 1,
},
};
static struct gpio_led_platform_data laguna_gpio_leds_data = {
.num_leds = 22,
.leds = laguna_gpio_leds,
};
static struct platform_device laguna_gpio_leds_device = {
.name = "leds-gpio",
.id = -1,
.dev.platform_data = &laguna_gpio_leds_data,
};
/*
* Ethernet
*/
static struct cns3xxx_plat_info laguna_net_data = {
.ports = 0,
.phy = {
0,
1,
2,
},
};
static struct resource laguna_net_resource[] = {
{
.name = "eth0_mem",
.start = CNS3XXX_SWITCH_BASE,
.end = CNS3XXX_SWITCH_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM
}, {
.name = "eth_rx",
.start = IRQ_CNS3XXX_SW_R0RXC,
.end = IRQ_CNS3XXX_SW_R0RXC,
.flags = IORESOURCE_IRQ
}, {
.name = "eth_stat",
.start = IRQ_CNS3XXX_SW_STATUS,
.end = IRQ_CNS3XXX_SW_STATUS,
.flags = IORESOURCE_IRQ
}
};
static u64 laguna_net_dmamask = DMA_BIT_MASK(32);
static struct platform_device laguna_net_device = {
.name = "cns3xxx_eth",
.id = 0,
.resource = laguna_net_resource,
.num_resources = ARRAY_SIZE(laguna_net_resource),
.dev = {
.dma_mask = &laguna_net_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &laguna_net_data,
}
};
/*
* UART
*/
static void __init laguna_early_serial_setup(void)
{
#ifdef CONFIG_SERIAL_8250_CONSOLE
static struct uart_port laguna_serial_port = {
.membase = (void __iomem *)CNS3XXX_UART0_BASE_VIRT,
.mapbase = CNS3XXX_UART0_BASE,
.irq = IRQ_CNS3XXX_UART0,
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE,
.regshift = 2,
.uartclk = 24000000,
.line = 0,
.type = PORT_16550A,
.fifosize = 16,
};
early_serial_setup(&laguna_serial_port);
#endif
}
static struct resource laguna_uart_resources[] = {
{
.start = CNS3XXX_UART0_BASE,
.end = CNS3XXX_UART0_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM
},{
.start = CNS3XXX_UART1_BASE,
.end = CNS3XXX_UART1_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM
},{
.start = CNS3XXX_UART2_BASE,
.end = CNS3XXX_UART2_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM
},
};
static struct plat_serial8250_port laguna_uart_data[] = {
{
.mapbase = (CNS3XXX_UART0_BASE),
.irq = IRQ_CNS3XXX_UART0,
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE | UPF_NO_TXEN_TEST | UPF_IOREMAP,
.regshift = 2,
.uartclk = 24000000,
.type = PORT_16550A,
},{
.mapbase = (CNS3XXX_UART1_BASE),
.irq = IRQ_CNS3XXX_UART1,
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE | UPF_NO_TXEN_TEST | UPF_IOREMAP,
.regshift = 2,
.uartclk = 24000000,
.type = PORT_16550A,
},{
.mapbase = (CNS3XXX_UART2_BASE),
.irq = IRQ_CNS3XXX_UART2,
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE | UPF_NO_TXEN_TEST | UPF_IOREMAP,
.regshift = 2,
.uartclk = 24000000,
.type = PORT_16550A,
},
{ },
};
static struct platform_device laguna_uart = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev.platform_data = laguna_uart_data,
.num_resources = 3,
.resource = laguna_uart_resources
};
/*
* USB
*/
static struct resource cns3xxx_usb_ehci_resources[] = {
[0] = {
.start = CNS3XXX_USB_BASE,
.end = CNS3XXX_USB_BASE + SZ_16M - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_CNS3XXX_USB_EHCI,
.flags = IORESOURCE_IRQ,
},
};
static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32);
static int csn3xxx_usb_power_on(struct platform_device *pdev)
{
/*
* EHCI and OHCI share the same clock and power,
* resetting twice would cause the 1st controller been reset.
* Therefore only do power up at the first up device, and
* power down at the last down device.
*
* Set USB AHB INCR length to 16
*/
if (atomic_inc_return(&usb_pwr_ref) == 1) {
cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB);
cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
cns3xxx_pwr_soft_rst(1 << PM_SOFT_RST_REG_OFFST_USB_HOST);
__raw_writel((__raw_readl(MISC_CHIP_CONFIG_REG) | (0X2 << 24)),
MISC_CHIP_CONFIG_REG);
}
return 0;
}
static void csn3xxx_usb_power_off(struct platform_device *pdev)
{
/*
* EHCI and OHCI share the same clock and power,
* resetting twice would cause the 1st controller been reset.
* Therefore only do power up at the first up device, and
* power down at the last down device.
*/
if (atomic_dec_return(&usb_pwr_ref) == 0)
cns3xxx_pwr_clk_dis(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
}
static struct usb_ehci_pdata cns3xxx_usb_ehci_pdata = {
.power_on = csn3xxx_usb_power_on,
.power_off = csn3xxx_usb_power_off,
};
static struct platform_device cns3xxx_usb_ehci_device = {
.name = "ehci-platform",
.num_resources = ARRAY_SIZE(cns3xxx_usb_ehci_resources),
.resource = cns3xxx_usb_ehci_resources,
.dev = {
.dma_mask = &cns3xxx_usb_ehci_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &cns3xxx_usb_ehci_pdata,
},
};
static struct resource cns3xxx_usb_ohci_resources[] = {
[0] = {
.start = CNS3XXX_USB_OHCI_BASE,
.end = CNS3XXX_USB_OHCI_BASE + SZ_16M - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_CNS3XXX_USB_OHCI,
.flags = IORESOURCE_IRQ,
},
};
static u64 cns3xxx_usb_ohci_dma_mask = DMA_BIT_MASK(32);
static struct usb_ohci_pdata cns3xxx_usb_ohci_pdata = {
.num_ports = 1,
.power_on = csn3xxx_usb_power_on,
.power_off = csn3xxx_usb_power_off,
};
static struct platform_device cns3xxx_usb_ohci_device = {
.name = "ohci-platform",
.num_resources = ARRAY_SIZE(cns3xxx_usb_ohci_resources),
.resource = cns3xxx_usb_ohci_resources,
.dev = {
.dma_mask = &cns3xxx_usb_ohci_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &cns3xxx_usb_ohci_pdata,
},
};
static struct resource cns3xxx_usb_otg_resources[] = {
[0] = {
.start = CNS3XXX_USBOTG_BASE,
.end = CNS3XXX_USBOTG_BASE + SZ_16M - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_CNS3XXX_USB_OTG,
.flags = IORESOURCE_IRQ,
},
};
static u64 cns3xxx_usb_otg_dma_mask = DMA_BIT_MASK(32);
static struct platform_device cns3xxx_usb_otg_device = {
.name = "dwc2",
.num_resources = ARRAY_SIZE(cns3xxx_usb_otg_resources),
.resource = cns3xxx_usb_otg_resources,
.dev = {
.dma_mask = &cns3xxx_usb_otg_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
/*
* I2C
*/
static struct resource laguna_i2c_resource[] = {
{
.start = CNS3XXX_SSP_BASE + 0x20,
.end = CNS3XXX_SSP_BASE + 0x3f,
.flags = IORESOURCE_MEM,
},{
.start = IRQ_CNS3XXX_I2C,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device laguna_i2c_controller = {
.name = "cns3xxx-i2c",
.num_resources = 2,
.resource = laguna_i2c_resource,
};
static struct memory_accessor *at24_mem_acc;
static void at24_setup(struct memory_accessor *mem_acc, void *context)
{
char buf[16];
at24_mem_acc = mem_acc;
/* Read MAC addresses */
if (at24_mem_acc->read(at24_mem_acc, buf, 0x100, 6) == 6)
memcpy(&laguna_net_data.hwaddr[0], buf, ETH_ALEN);
if (at24_mem_acc->read(at24_mem_acc, buf, 0x106, 6) == 6)
memcpy(&laguna_net_data.hwaddr[1], buf, ETH_ALEN);
if (at24_mem_acc->read(at24_mem_acc, buf, 0x10C, 6) == 6)
memcpy(&laguna_net_data.hwaddr[2], buf, ETH_ALEN);
if (at24_mem_acc->read(at24_mem_acc, buf, 0x112, 6) == 6)
memcpy(&laguna_net_data.hwaddr[3], buf, ETH_ALEN);
/* Read out Model Information */
if (at24_mem_acc->read(at24_mem_acc, buf, 0x130, 16) == 16)
memcpy(&laguna_info.model, buf, 16);
if (at24_mem_acc->read(at24_mem_acc, buf, 0x140, 1) == 1)
memcpy(&laguna_info.nor_flash_size, buf, 1);
if (at24_mem_acc->read(at24_mem_acc, buf, 0x141, 1) == 1)
memcpy(&laguna_info.spi_flash_size, buf, 1);
if (at24_mem_acc->read(at24_mem_acc, buf, 0x142, 4) == 4)
memcpy(&laguna_info.config_bitmap, buf, 4);
if (at24_mem_acc->read(at24_mem_acc, buf, 0x146, 4) == 4)
memcpy(&laguna_info.config2_bitmap, buf, 4);
};
static struct at24_platform_data laguna_eeprom_info = {
.byte_len = 1024,
.page_size = 16,
.flags = AT24_FLAG_READONLY,
.setup = at24_setup,
};
static struct pca953x_platform_data laguna_pca_data = {
.gpio_base = 100,
.irq_base = -1,
};
static struct pca953x_platform_data laguna_pca2_data = {
.gpio_base = 116,
.irq_base = -1,
};
static struct i2c_board_info __initdata laguna_i2c_devices[] = {
{
I2C_BOARD_INFO("pca9555", 0x23),
.platform_data = &laguna_pca_data,
},{
I2C_BOARD_INFO("pca9555", 0x27),
.platform_data = &laguna_pca2_data,
},{
I2C_BOARD_INFO("gsp", 0x29),
},{
I2C_BOARD_INFO ("24c08",0x50),
.platform_data = &laguna_eeprom_info,
},{
I2C_BOARD_INFO("ds1672", 0x68),
},
};
/*
* Watchdog
*/
static struct resource laguna_watchdog_resources[] = {
[0] = {
.start = CNS3XXX_TC11MP_TWD_BASE + 0x100, // CPU0 watchdog
.end = CNS3XXX_TC11MP_TWD_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device laguna_watchdog = {
.name = "mpcore_wdt",
.id = -1,
.num_resources = ARRAY_SIZE(laguna_watchdog_resources),
.resource = laguna_watchdog_resources,
};
/*
* GPS PPS
*/
static struct pps_gpio_platform_data laguna_pps_data = {
.gpio_pin = 0,
.gpio_label = "GPS_PPS",
.assert_falling_edge = 0,
.capture_clear = 0,
};
static struct platform_device laguna_pps_device = {
.name = "pps-gpio",
.id = -1,
.dev.platform_data = &laguna_pps_data,
};
/*
* GPIO
*/
static struct gpio laguna_gpio_gw2391[] = {
{ 0, GPIOF_IN , "*GPS_PPS" },
{ 1, GPIOF_IN , "*GSC_IRQ#" },
{ 2, GPIOF_IN , "*USB_FAULT#" },
{ 5, GPIOF_OUT_INIT_LOW , "*USB0_PCI_SEL" },
{ 6, GPIOF_OUT_INIT_HIGH, "*USB_VBUS_EN" },
{ 7, GPIOF_OUT_INIT_LOW , "*USB1_PCI_SEL" },
{ 8, GPIOF_OUT_INIT_HIGH, "*PERST#" },
{ 9, GPIOF_OUT_INIT_LOW , "*FP_SER_EN#" },
{ 100, GPIOF_IN , "*USER_PB#" },
{ 103, GPIOF_OUT_INIT_HIGH, "*V5_EN" },
{ 108, GPIOF_IN , "DIO0" },
{ 109, GPIOF_IN , "DIO1" },
{ 110, GPIOF_IN , "DIO2" },
{ 111, GPIOF_IN , "DIO3" },
{ 112, GPIOF_IN , "DIO4" },
};
static struct gpio laguna_gpio_gw2388[] = {
{ 0, GPIOF_IN , "*GPS_PPS" },
{ 1, GPIOF_IN , "*GSC_IRQ#" },
{ 3, GPIOF_IN , "*USB_FAULT#" },
{ 6, GPIOF_OUT_INIT_HIGH, "*USB_VBUS_EN" },
{ 7, GPIOF_OUT_INIT_LOW , "*GSM_SEL0" },
{ 8, GPIOF_OUT_INIT_LOW , "*GSM_SEL1" },
{ 9, GPIOF_OUT_INIT_LOW , "*FP_SER_EN" },
{ 100, GPIOF_OUT_INIT_HIGH, "*USER_PB#" },
{ 108, GPIOF_IN , "DIO0" },
{ 109, GPIOF_IN , "DIO1" },
{ 110, GPIOF_IN , "DIO2" },
{ 111, GPIOF_IN , "DIO3" },
{ 112, GPIOF_IN , "DIO4" },
};
static struct gpio laguna_gpio_gw2387[] = {
{ 0, GPIOF_IN , "*GPS_PPS" },
{ 1, GPIOF_IN , "*GSC_IRQ#" },
{ 2, GPIOF_IN , "*USB_FAULT#" },
{ 5, GPIOF_OUT_INIT_LOW , "*USB_PCI_SEL" },
{ 6, GPIOF_OUT_INIT_HIGH, "*USB_VBUS_EN" },
{ 7, GPIOF_OUT_INIT_LOW , "*GSM_SEL0" },
{ 8, GPIOF_OUT_INIT_LOW , "*GSM_SEL1" },
{ 9, GPIOF_OUT_INIT_LOW , "*FP_SER_EN" },
{ 100, GPIOF_IN , "*USER_PB#" },
{ 103, GPIOF_OUT_INIT_HIGH, "*V5_EN" },
{ 108, GPIOF_IN , "DIO0" },
{ 109, GPIOF_IN , "DIO1" },
{ 110, GPIOF_IN , "DIO2" },
{ 111, GPIOF_IN , "DIO3" },
{ 112, GPIOF_IN , "DIO4" },
{ 113, GPIOF_IN , "DIO5" },
};
static struct gpio laguna_gpio_gw2386[] = {
{ 0, GPIOF_IN , "*GPS_PPS" },
{ 2, GPIOF_IN , "*USB_FAULT#" },
{ 6, GPIOF_OUT_INIT_LOW , "*USB_PCI_SEL" },
{ 7, GPIOF_OUT_INIT_LOW , "*GSM_SEL0" },
{ 8, GPIOF_OUT_INIT_LOW , "*GSM_SEL1" },
{ 9, GPIOF_OUT_INIT_LOW , "*FP_SER_EN" },
{ 108, GPIOF_IN , "DIO0" },
{ 109, GPIOF_IN , "DIO1" },
{ 110, GPIOF_IN , "DIO2" },
{ 111, GPIOF_IN , "DIO3" },
{ 112, GPIOF_IN , "DIO4" },
{ 113, GPIOF_IN , "DIO5" },
};
static struct gpio laguna_gpio_gw2385[] = {
{ 0, GPIOF_IN , "*GSC_IRQ#" },
{ 1, GPIOF_OUT_INIT_HIGH, "*USB_HST_VBUS_EN" },
{ 2, GPIOF_IN , "*USB_HST_FAULT#" },
{ 5, GPIOF_IN , "*USB_OTG_FAULT#" },
{ 6, GPIOF_OUT_INIT_LOW , "*USB_HST_PCI_SEL" },
{ 7, GPIOF_OUT_INIT_LOW , "*GSM_SEL0" },
{ 8, GPIOF_OUT_INIT_LOW , "*GSM_SEL1" },
{ 9, GPIOF_OUT_INIT_LOW , "*SER_EN" },
{ 10, GPIOF_IN, "*USER_PB#" },
{ 11, GPIOF_OUT_INIT_HIGH, "*PERST#" },
{ 100, GPIOF_IN , "*USER_PB#" },
{ 103, GPIOF_OUT_INIT_HIGH, "V5_EN" },
};
static struct gpio laguna_gpio_gw2384[] = {
{ 0, GPIOF_IN , "*GSC_IRQ#" },
{ 1, GPIOF_OUT_INIT_HIGH, "*USB_HST_VBUS_EN" },
{ 2, GPIOF_IN , "*USB_HST_FAULT#" },
{ 5, GPIOF_IN , "*USB_OTG_FAULT#" },
{ 6, GPIOF_OUT_INIT_LOW , "*USB_HST_PCI_SEL" },
{ 7, GPIOF_OUT_INIT_LOW , "*GSM_SEL0" },
{ 8, GPIOF_OUT_INIT_LOW , "*GSM_SEL1" },
{ 9, GPIOF_OUT_INIT_LOW , "*FP_SER_EN" },
{ 12, GPIOF_OUT_INIT_LOW , "J10_DIOLED0" },
{ 13, GPIOF_OUT_INIT_HIGH, "*I2CMUX_RST#" },
{ 14, GPIOF_OUT_INIT_LOW , "J10_DIOLED1" },
{ 15, GPIOF_OUT_INIT_LOW , "J10_DIOLED2" },
{ 100, GPIOF_IN , "*USER_PB#" },
{ 103, GPIOF_OUT_INIT_HIGH, "V5_EN" },
{ 108, GPIOF_IN , "J9_DIOGSC0" },
};
static struct gpio laguna_gpio_gw2383[] = {
{ 0, GPIOF_IN , "*GPS_PPS" },
{ 1, GPIOF_IN , "*GSC_IRQ#" },
{ 2, GPIOF_OUT_INIT_HIGH, "*PCIE_RST#" },
{ 3, GPIOF_IN , "GPIO0" },
{ 8, GPIOF_IN , "GPIO1" },
{ 100, GPIOF_IN , "DIO0" },
{ 101, GPIOF_IN , "DIO1" },
{ 108, GPIOF_IN , "*USER_PB#" },
};
static struct gpio laguna_gpio_gw2382[] = {
{ 0, GPIOF_IN , "*GPS_PPS" },
{ 1, GPIOF_IN , "*GSC_IRQ#" },
{ 2, GPIOF_OUT_INIT_HIGH, "*PCIE_RST#" },
{ 3, GPIOF_IN , "GPIO0" },
{ 4, GPIOF_IN , "GPIO1" },
{ 9, GPIOF_OUT_INIT_HIGH, "*USB_VBUS_EN" },
{ 10, GPIOF_OUT_INIT_HIGH, "*USB_PCI_SEL#" },
{ 100, GPIOF_IN , "DIO0" },
{ 101, GPIOF_IN , "DIO1" },
{ 108, GPIOF_IN , "*USER_PB#" },
};
static struct gpio laguna_gpio_gw2380[] = {
{ 0, GPIOF_IN , "*GPS_PPS" },
{ 1, GPIOF_IN , "*GSC_IRQ#" },
{ 3, GPIOF_IN , "GPIO0" },
{ 8, GPIOF_IN , "GPIO1" },
{ 100, GPIOF_IN , "DIO0" },
{ 101, GPIOF_IN , "DIO1" },
{ 102, GPIOF_IN , "DIO2" },
{ 103, GPIOF_IN , "DIO3" },
{ 108, GPIOF_IN , "*USER_PB#" },
};
/*
* Initialization
*/
static void __init laguna_init(void)
{
struct clk *clk;
u32 __iomem *reg;
clk = clk_register_fixed_rate(NULL, "cpu", NULL,
CLK_IS_ROOT | CLK_IGNORE_UNUSED,
cns3xxx_cpu_clock() * (1000000 / 8));
clk_register_clkdev(clk, "cpu", NULL);
platform_device_register(&laguna_watchdog);
platform_device_register(&laguna_i2c_controller);
/* Set I2C 0-3 drive strength to 21 mA */
reg = MISC_IO_PAD_DRIVE_STRENGTH_CTRL_B;
*reg |= 0x300;
/* Enable SCL/SDA for I2C */
reg = MISC_GPIOB_PIN_ENABLE_REG;
*reg |= BIT(12) | BIT(13);
/* Enable MMC/SD pins */
*reg |= BIT(7) | BIT(8) | BIT(9) | BIT(10) | BIT(11);
cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_SPI_PCM_I2C);
cns3xxx_pwr_power_up(1 << PM_CLK_GATE_REG_OFFSET_SPI_PCM_I2C);
cns3xxx_pwr_soft_rst(1 << PM_CLK_GATE_REG_OFFSET_SPI_PCM_I2C);
cns3xxx_pwr_clk_en(CNS3XXX_PWR_CLK_EN(SPI_PCM_I2C));
cns3xxx_pwr_soft_rst(CNS3XXX_PWR_SOFTWARE_RST(SPI_PCM_I2C));
i2c_register_board_info(0, ARRAY_AND_SIZE(laguna_i2c_devices));
pm_power_off = cns3xxx_power_off;
}
static struct map_desc laguna_io_desc[] __initdata = {
{
.virtual = CNS3XXX_UART0_BASE_VIRT,
.pfn = __phys_to_pfn(CNS3XXX_UART0_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
},
};
static void __init laguna_map_io(void)
{
cns3xxx_map_io();
iotable_init(ARRAY_AND_SIZE(laguna_io_desc));
laguna_early_serial_setup();
}
static int laguna_register_gpio(struct gpio *array, size_t num)
{
int i, err, ret;
ret = 0;
for (i = 0; i < num; i++, array++) {
const char *label = array->label;
if (label[0] == '*')
label++;
err = gpio_request_one(array->gpio, array->flags, label);
if (err)
ret = err;
else {
err = gpio_export(array->gpio, array->label[0] != '*');
}
}
return ret;
}
/* allow disabling of external isolated PCIe IRQs */
static int cns3xxx_pciextirq = 1;
static int __init cns3xxx_pciextirq_disable(char *s)
{
cns3xxx_pciextirq = 0;
return 1;
}
__setup("noextirq", cns3xxx_pciextirq_disable);
static int __init laguna_pcie_init_irq(void)
{
u32 __iomem *mem = (void __iomem *)(CNS3XXX_GPIOB_BASE_VIRT + 0x0004);
u32 reg = (__raw_readl(mem) >> 26) & 0xf;
int irqs[] = {
IRQ_CNS3XXX_EXTERNAL_PIN0,
IRQ_CNS3XXX_EXTERNAL_PIN1,
IRQ_CNS3XXX_EXTERNAL_PIN2,
154,
};
if (!machine_is_gw2388())
return 0;
/* Verify GPIOB[26:29] == 0001b indicating support for ext irqs */
if (cns3xxx_pciextirq && reg != 1)
cns3xxx_pciextirq = 0;
if (cns3xxx_pciextirq) {
printk("laguna: using isolated PCI interrupts:"
" irq%d/irq%d/irq%d/irq%d\n",
irqs[0], irqs[1], irqs[2], irqs[3]);
cns3xxx_pcie_set_irqs(0, irqs);
} else {
printk("laguna: using shared PCI interrupts: irq%d\n",
IRQ_CNS3XXX_PCIE0_DEVICE);
}
return 0;
}
subsys_initcall(laguna_pcie_init_irq);
static int __init laguna_model_setup(void)
{
u32 __iomem *mem;
u32 reg;
if (!machine_is_gw2388())
return 0;
printk("Running on Gateworks Laguna %s\n", laguna_info.model);
cns3xxx_gpio_init( 0, 32, CNS3XXX_GPIOA_BASE_VIRT, IRQ_CNS3XXX_GPIOA,
NR_IRQS_CNS3XXX);
/*
* If pcie external interrupts are supported and desired
* configure IRQ types and configure pin function.
* Note that cns3xxx_pciextirq is enabled by default, but can be
* unset via the 'noextirq' kernel param or by laguna_pcie_init() if
* the baseboard model does not support this hardware feature.
*/
if (cns3xxx_pciextirq) {
mem = (void __iomem *)(CNS3XXX_MISC_BASE_VIRT + 0x0018);
reg = __raw_readl(mem);
/* GPIO26 is gpio, EXT_INT[0:2] not gpio func */
reg &= ~0x3c000000;
reg |= 0x38000000;
__raw_writel(reg, mem);
cns3xxx_gpio_init(32, 32, CNS3XXX_GPIOB_BASE_VIRT,
IRQ_CNS3XXX_GPIOB, NR_IRQS_CNS3XXX + 32);
irq_set_irq_type(154, IRQ_TYPE_LEVEL_LOW);
irq_set_irq_type(93, IRQ_TYPE_LEVEL_HIGH);
irq_set_irq_type(94, IRQ_TYPE_LEVEL_HIGH);
irq_set_irq_type(95, IRQ_TYPE_LEVEL_HIGH);
} else {
cns3xxx_gpio_init(32, 32, CNS3XXX_GPIOB_BASE_VIRT,
IRQ_CNS3XXX_GPIOB, NR_IRQS_CNS3XXX + 32);
}
if (strncmp(laguna_info.model, "GW", 2) == 0) {
if (laguna_info.config_bitmap & ETH0_LOAD)
laguna_net_data.ports |= BIT(0);
if (laguna_info.config_bitmap & ETH1_LOAD)
laguna_net_data.ports |= BIT(1);
if (laguna_info.config_bitmap & ETH2_LOAD)
laguna_net_data.ports |= BIT(2);
if (laguna_net_data.ports)
platform_device_register(&laguna_net_device);
if ((laguna_info.config_bitmap & SATA0_LOAD) ||
(laguna_info.config_bitmap & SATA1_LOAD))
cns3xxx_ahci_init();
if (laguna_info.config_bitmap & (USB0_LOAD)) {
cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB);
/* DRVVBUS pins share with GPIOA */
mem = (void __iomem *)(CNS3XXX_MISC_BASE_VIRT + 0x0014);
reg = __raw_readl(mem);
reg |= 0x8;
__raw_writel(reg, mem);
/* Enable OTG */
mem = (void __iomem *)(CNS3XXX_MISC_BASE_VIRT + 0x0808);
reg = __raw_readl(mem);
reg &= ~(1 << 10);
__raw_writel(reg, mem);
platform_device_register(&cns3xxx_usb_otg_device);
}
if (laguna_info.config_bitmap & (USB1_LOAD)) {
platform_device_register(&cns3xxx_usb_ehci_device);
platform_device_register(&cns3xxx_usb_ohci_device);
}
if (laguna_info.config_bitmap & (SD_LOAD))
cns3xxx_sdhci_init();
if (laguna_info.config_bitmap & (UART0_LOAD))
laguna_uart.num_resources = 1;
if (laguna_info.config_bitmap & (UART1_LOAD))
laguna_uart.num_resources = 2;
if (laguna_info.config_bitmap & (UART2_LOAD))
laguna_uart.num_resources = 3;
platform_device_register(&laguna_uart);
if (laguna_info.config2_bitmap & (NOR_FLASH_LOAD)) {
laguna_nor_partitions[2].size =
(SZ_4M << laguna_info.nor_flash_size) -
laguna_nor_partitions[2].offset;
laguna_nor_res.end = CNS3XXX_FLASH_BASE +
laguna_nor_partitions[2].offset +
laguna_nor_partitions[2].size - 1;
platform_device_register(&laguna_nor_pdev);
}
if (laguna_info.config2_bitmap & (SPI_FLASH_LOAD)) {
laguna_spi_partitions[2].size =
(SZ_2M << laguna_info.spi_flash_size) -
laguna_spi_partitions[2].offset;
spi_register_board_info(ARRAY_AND_SIZE(laguna_spi_devices));
}
if ((laguna_info.config_bitmap & SPI0_LOAD) ||
(laguna_info.config_bitmap & SPI1_LOAD))
platform_device_register(&laguna_spi_controller);
if (laguna_info.config2_bitmap & GPS_LOAD)
platform_device_register(&laguna_pps_device);
/*
* Do any model specific setup not known by the bitmap by matching
* the first 6 characters of the model name
*/
if ( (strncmp(laguna_info.model, "GW2388", 6) == 0)
|| (strncmp(laguna_info.model, "GW2389", 6) == 0) )
{
// configure GPIO's
laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2388));
// configure LED's
laguna_gpio_leds_data.num_leds = 2;
} else if (strncmp(laguna_info.model, "GW2387", 6) == 0) {
// configure GPIO's
laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2387));
// configure LED's
laguna_gpio_leds_data.num_leds = 2;
} else if (strncmp(laguna_info.model, "GW2386", 6) == 0) {
// configure GPIO's
laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2386));
// configure LED's
laguna_gpio_leds_data.num_leds = 2;
} else if (strncmp(laguna_info.model, "GW2385", 6) == 0) {
// configure GPIO's
laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2385));
// configure LED's
laguna_gpio_leds[0].gpio = 115;
laguna_gpio_leds[1].gpio = 12;
laguna_gpio_leds[1].name = "red";
laguna_gpio_leds[1].active_low = 0,
laguna_gpio_leds[2].gpio = 14;
laguna_gpio_leds[2].name = "green";
laguna_gpio_leds[2].active_low = 0,
laguna_gpio_leds[3].gpio = 15;
laguna_gpio_leds[3].name = "blue";
laguna_gpio_leds[3].active_low = 0,
laguna_gpio_leds_data.num_leds = 4;
} else if ( (strncmp(laguna_info.model, "GW2384", 6) == 0)
|| (strncmp(laguna_info.model, "GW2394", 6) == 0) )
{
// configure GPIO's
laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2384));
// configure LED's
laguna_gpio_leds_data.num_leds = 1;
} else if (strncmp(laguna_info.model, "GW2383", 6) == 0) {
// configure GPIO's
laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2383));
// configure LED's
laguna_gpio_leds[0].gpio = 107;
laguna_gpio_leds_data.num_leds = 1;
} else if (strncmp(laguna_info.model, "GW2382", 6) == 0) {
// configure GPIO's
laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2382));
// configure LED's
laguna_gpio_leds[0].gpio = 107;
laguna_gpio_leds_data.num_leds = 1;
} else if (strncmp(laguna_info.model, "GW2380", 6) == 0) {
// configure GPIO's
laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2380));
// configure LED's
laguna_gpio_leds[0].gpio = 107;
laguna_gpio_leds[1].gpio = 106;
laguna_gpio_leds_data.num_leds = 2;
} else if ( (strncmp(laguna_info.model, "GW2391", 6) == 0)
|| (strncmp(laguna_info.model, "GW2393", 6) == 0) )
{
// configure GPIO's
laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2391));
// configure LED's
laguna_gpio_leds_data.num_leds = 2;
}
platform_device_register(&laguna_gpio_leds_device);
} else {
// Do some defaults here, not sure what yet
}
return 0;
}
late_initcall(laguna_model_setup);
MACHINE_START(GW2388, "Gateworks Corporation Laguna Platform")
.smp = smp_ops(cns3xxx_smp_ops),
.atag_offset = 0x100,
.map_io = laguna_map_io,
.init_irq = cns3xxx_init_irq,
.init_time = cns3xxx_timer_init,
.init_machine = laguna_init,
.init_late = cns3xxx_pcie_init_late,
.restart = cns3xxx_restart,
MACHINE_END
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