arm/mach-orion5x/rd88f5182-setup.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * arch/arm/mach-orion5x/rd88f5182-setup.c
0004  *
0005  * Marvell Orion-NAS Reference Design Setup
0006  *
0007  * Maintainer: Ronen Shitrit <rshitrit@marvell.com>
0008  */
0009 #include <linux/gpio.h>
0010 #include <linux/kernel.h>
0011 #include <linux/init.h>
0012 #include <linux/platform_device.h>
0013 #include <linux/pci.h>
0014 #include <linux/irq.h>
0015 #include <linux/mtd/physmap.h>
0016 #include <linux/mv643xx_eth.h>
0017 #include <linux/ata_platform.h>
0018 #include <linux/i2c.h>
0019 #include <linux/leds.h>
0020 #include <asm/mach-types.h>
0021 #include <asm/mach/arch.h>
0022 #include <asm/mach/pci.h>
0023 #include "common.h"
0024 #include "mpp.h"
0025 #include "orion5x.h"
0026
0027 /*****************************************************************************
0028  * RD-88F5182 Info
0029  ****************************************************************************/
0030
0031 /*
0032  * 512K NOR flash Device bus boot chip select
0033  */
0034
0035 #define RD88F5182_NOR_BOOT_BASE     0xf4000000
0036 #define RD88F5182_NOR_BOOT_SIZE     SZ_512K
0037
0038 /*
0039  * 16M NOR flash on Device bus chip select 1
0040  */
0041
0042 #define RD88F5182_NOR_BASE      0xfc000000
0043 #define RD88F5182_NOR_SIZE      SZ_16M
0044
0045 /*
0046  * PCI
0047  */
0048
0049 #define RD88F5182_PCI_SLOT0_OFFS    7
0050 #define RD88F5182_PCI_SLOT0_IRQ_A_PIN   7
0051 #define RD88F5182_PCI_SLOT0_IRQ_B_PIN   6
0052
0053 /*****************************************************************************
0054  * 16M NOR Flash on Device bus CS1
0055  ****************************************************************************/
0056
0057 static struct physmap_flash_data rd88f5182_nor_flash_data = {
0058     .width      = 1,
0059 };
0060
0061 static struct resource rd88f5182_nor_flash_resource = {
0062     .flags          = IORESOURCE_MEM,
0063     .start          = RD88F5182_NOR_BASE,
0064     .end            = RD88F5182_NOR_BASE + RD88F5182_NOR_SIZE - 1,
0065 };
0066
0067 static struct platform_device rd88f5182_nor_flash = {
0068     .name           = "physmap-flash",
0069     .id         = 0,
0070     .dev        = {
0071         .platform_data  = &rd88f5182_nor_flash_data,
0072     },
0073     .num_resources      = 1,
0074     .resource       = &rd88f5182_nor_flash_resource,
0075 };
0076
0077 /*****************************************************************************
0078  * Use GPIO LED as CPU active indication
0079  ****************************************************************************/
0080
0081 #define RD88F5182_GPIO_LED      0
0082
0083 static struct gpio_led rd88f5182_gpio_led_pins[] = {
0084     {
0085         .name       = "rd88f5182:cpu",
0086         .default_trigger = "cpu0",
0087         .gpio       = RD88F5182_GPIO_LED,
0088     },
0089 };
0090
0091 static struct gpio_led_platform_data rd88f5182_gpio_led_data = {
0092     .leds       = rd88f5182_gpio_led_pins,
0093     .num_leds   = ARRAY_SIZE(rd88f5182_gpio_led_pins),
0094 };
0095
0096 static struct platform_device rd88f5182_gpio_leds = {
0097     .name   = "leds-gpio",
0098     .id = -1,
0099     .dev    = {
0100         .platform_data = &rd88f5182_gpio_led_data,
0101     },
0102 };
0103
0104 /*****************************************************************************
0105  * PCI
0106  ****************************************************************************/
0107
0108 static void __init rd88f5182_pci_preinit(void)
0109 {
0110     int pin;
0111
0112     /*
0113      * Configure PCI GPIO IRQ pins
0114      */
0115     pin = RD88F5182_PCI_SLOT0_IRQ_A_PIN;
0116     if (gpio_request(pin, "PCI IntA") == 0) {
0117         if (gpio_direction_input(pin) == 0) {
0118             irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
0119         } else {
0120             printk(KERN_ERR "rd88f5182_pci_preinit failed to "
0121                     "set_irq_type pin %d\n", pin);
0122             gpio_free(pin);
0123         }
0124     } else {
0125         printk(KERN_ERR "rd88f5182_pci_preinit failed to request gpio %d\n", pin);
0126     }
0127
0128     pin = RD88F5182_PCI_SLOT0_IRQ_B_PIN;
0129     if (gpio_request(pin, "PCI IntB") == 0) {
0130         if (gpio_direction_input(pin) == 0) {
0131             irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
0132         } else {
0133             printk(KERN_ERR "rd88f5182_pci_preinit failed to "
0134                     "set_irq_type pin %d\n", pin);
0135             gpio_free(pin);
0136         }
0137     } else {
0138         printk(KERN_ERR "rd88f5182_pci_preinit failed to gpio_request %d\n", pin);
0139     }
0140 }
0141
0142 static int __init rd88f5182_pci_map_irq(const struct pci_dev *dev, u8 slot,
0143     u8 pin)
0144 {
0145     int irq;
0146
0147     /*
0148      * Check for devices with hard-wired IRQs.
0149      */
0150     irq = orion5x_pci_map_irq(dev, slot, pin);
0151     if (irq != -1)
0152         return irq;
0153
0154     /*
0155      * PCI IRQs are connected via GPIOs
0156      */
0157     switch (slot - RD88F5182_PCI_SLOT0_OFFS) {
0158     case 0:
0159         if (pin == 1)
0160             return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_A_PIN);
0161         else
0162             return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_B_PIN);
0163     default:
0164         return -1;
0165     }
0166 }
0167
0168 static struct hw_pci rd88f5182_pci __initdata = {
0169     .nr_controllers = 2,
0170     .preinit    = rd88f5182_pci_preinit,
0171     .setup      = orion5x_pci_sys_setup,
0172     .scan       = orion5x_pci_sys_scan_bus,
0173     .map_irq    = rd88f5182_pci_map_irq,
0174 };
0175
0176 static int __init rd88f5182_pci_init(void)
0177 {
0178     if (machine_is_rd88f5182())
0179         pci_common_init(&rd88f5182_pci);
0180
0181     return 0;
0182 }
0183
0184 subsys_initcall(rd88f5182_pci_init);
0185
0186 /*****************************************************************************
0187  * Ethernet
0188  ****************************************************************************/
0189
0190 static struct mv643xx_eth_platform_data rd88f5182_eth_data = {
0191     .phy_addr   = MV643XX_ETH_PHY_ADDR(8),
0192 };
0193
0194 /*****************************************************************************
0195  * RTC DS1338 on I2C bus
0196  ****************************************************************************/
0197 static struct i2c_board_info __initdata rd88f5182_i2c_rtc = {
0198     I2C_BOARD_INFO("ds1338", 0x68),
0199 };
0200
0201 /*****************************************************************************
0202  * Sata
0203  ****************************************************************************/
0204 static struct mv_sata_platform_data rd88f5182_sata_data = {
0205     .n_ports    = 2,
0206 };
0207
0208 /*****************************************************************************
0209  * General Setup
0210  ****************************************************************************/
0211 static unsigned int rd88f5182_mpp_modes[] __initdata = {
0212     MPP0_GPIO,      /* Debug Led */
0213     MPP1_GPIO,      /* Reset Switch */
0214     MPP2_UNUSED,
0215     MPP3_GPIO,      /* RTC Int */
0216     MPP4_GPIO,
0217     MPP5_GPIO,
0218     MPP6_GPIO,      /* PCI_intA */
0219     MPP7_GPIO,      /* PCI_intB */
0220     MPP8_UNUSED,
0221     MPP9_UNUSED,
0222     MPP10_UNUSED,
0223     MPP11_UNUSED,
0224     MPP12_SATA_LED,     /* SATA 0 presence */
0225     MPP13_SATA_LED,     /* SATA 1 presence */
0226     MPP14_SATA_LED,     /* SATA 0 active */
0227     MPP15_SATA_LED,     /* SATA 1 active */
0228     MPP16_UNUSED,
0229     MPP17_UNUSED,
0230     MPP18_UNUSED,
0231     MPP19_UNUSED,
0232     0,
0233 };
0234
0235 static void __init rd88f5182_init(void)
0236 {
0237     /*
0238      * Setup basic Orion functions. Need to be called early.
0239      */
0240     orion5x_init();
0241
0242     orion5x_mpp_conf(rd88f5182_mpp_modes);
0243
0244     /*
0245      * MPP[20] PCI Clock to MV88F5182
0246      * MPP[21] PCI Clock to mini PCI CON11
0247      * MPP[22] USB 0 over current indication
0248      * MPP[23] USB 1 over current indication
0249      * MPP[24] USB 1 over current enable
0250      * MPP[25] USB 0 over current enable
0251      */
0252
0253     /*
0254      * Configure peripherals.
0255      */
0256     orion5x_ehci0_init();
0257     orion5x_ehci1_init();
0258     orion5x_eth_init(&rd88f5182_eth_data);
0259     orion5x_i2c_init();
0260     orion5x_sata_init(&rd88f5182_sata_data);
0261     orion5x_uart0_init();
0262     orion5x_xor_init();
0263
0264     mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
0265                     ORION_MBUS_DEVBUS_BOOT_ATTR,
0266                     RD88F5182_NOR_BOOT_BASE,
0267                     RD88F5182_NOR_BOOT_SIZE);
0268     mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_TARGET(1),
0269                     ORION_MBUS_DEVBUS_ATTR(1),
0270                     RD88F5182_NOR_BASE,
0271                     RD88F5182_NOR_SIZE);
0272     platform_device_register(&rd88f5182_nor_flash);
0273     platform_device_register(&rd88f5182_gpio_leds);
0274
0275     i2c_register_board_info(0, &rd88f5182_i2c_rtc, 1);
0276 }
0277
0278 MACHINE_START(RD88F5182, "Marvell Orion-NAS Reference Design")
0279     /* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
0280     .atag_offset    = 0x100,
0281     .nr_irqs    = ORION5X_NR_IRQS,
0282     .init_machine   = rd88f5182_init,
0283     .map_io     = orion5x_map_io,
0284     .init_early = orion5x_init_early,
0285     .init_irq   = orion5x_init_irq,
0286     .init_time  = orion5x_timer_init,
0287     .restart    = orion5x_restart,
0288 MACHINE_END