openwrtv3/target/linux/ar71xx/files/arch/mips/ath79/mach-rbspi.c
Thibaut VARENE 8cbb2ac633 ar71xx: add support for RB951Ui-2nD
This patch adds support for the MikroTik RouterBOARD hAP
https://routerboard.com/RB951Ui-2nD

Specifications:
- SoC: Qualcomm QCA9531 (650MHz)
- RAM: 64MB
- Storage: 16MB NOR SPI flash
- Wireless: builtin QCA9531, 2x2:2
- Ethernet: 5x100M (1 PoE in, 1 PoE out)
- USB: Type A

Signed-off-by: Thibaut VARENE <hacks@slashdirt.org>
2017-02-15 11:28:58 +01:00

463 lines
13 KiB
C

/*
* MikroTik SPI-NOR RouterBOARDs support
*
* - MikroTik RouterBOARD mAP L-2nD
* - MikroTik RouterBOARD 941L-2nD
* - MikroTik RouterBOARD 951Ui-2nD
*
* Copyright (C) 2017 Thibaut VARENE <varenet@parisc-linux.org>
*
* 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/platform_device.h>
#include <linux/phy.h>
#include <linux/routerboot.h>
#include <linux/gpio.h>
#include <linux/spi/spi.h>
#include <linux/spi/74x164.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <asm/prom.h>
#include <asm/mach-ath79/ar71xx_regs.h>
#include <asm/mach-ath79/ath79.h>
#include "common.h"
#include "dev-eth.h"
#include "dev-spi.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-m25p80.h"
#include "dev-usb.h"
#include "dev-wmac.h"
#include "machtypes.h"
#include "routerboot.h"
#define RBSPI_KEYS_POLL_INTERVAL 20 /* msecs */
#define RBSPI_KEYS_DEBOUNCE_INTERVAL (3 * RBSPI_KEYS_POLL_INTERVAL)
#define RBSPI_HAS_USB BIT(0)
#define RBSPI_HAS_WLAN BIT(1)
#define RBSPI_HAS_WAN4 BIT(2) /* has WAN port on PHY4 */
#define RBSPI_HAS_SSR BIT(3) /* has an SSR on SPI bus 0 */
#define RB_ROUTERBOOT_OFFSET 0x0000
#define RB_BIOS_SIZE 0x1000
#define RB_SOFT_CFG_SIZE 0x1000
#define RB_KERNEL_SIZE (2 * 1024 * 1024) /* 2MB kernel */
/* Flash partitions indexes */
enum {
RBSPI_PART_RBOOT,
RBSPI_PART_HCONF,
RBSPI_PART_BIOS,
RBSPI_PART_RBOOT2,
RBSPI_PART_SCONF,
RBSPI_PART_KERN,
RBSPI_PART_ROOT,
RBSPI_PARTS
};
static struct mtd_partition rbspi_spi_partitions[RBSPI_PARTS];
/*
* Setup the SPI flash partition table based on initial parsing.
* The kernel can be at any aligned position and have any size.
* The size of the kernel partition is the desired RB_KERNEL_SIZE
* minus the size of the preceding partitions (128KB).
*/
static void __init rbspi_init_partitions(const struct rb_info *info)
{
struct mtd_partition *parts = rbspi_spi_partitions;
memset(parts, 0x0, sizeof(*parts));
parts[RBSPI_PART_RBOOT].name = "routerboot";
parts[RBSPI_PART_RBOOT].offset = RB_ROUTERBOOT_OFFSET;
parts[RBSPI_PART_RBOOT].size = info->hard_cfg_offs;
parts[RBSPI_PART_RBOOT].mask_flags = MTD_WRITEABLE;
parts[RBSPI_PART_HCONF].name = "hard_config";
parts[RBSPI_PART_HCONF].offset = info->hard_cfg_offs;
parts[RBSPI_PART_HCONF].size = info->hard_cfg_size;
parts[RBSPI_PART_HCONF].mask_flags = MTD_WRITEABLE;
parts[RBSPI_PART_BIOS].name = "bios";
parts[RBSPI_PART_BIOS].offset = info->hard_cfg_offs
+ info->hard_cfg_size;
parts[RBSPI_PART_BIOS].size = RB_BIOS_SIZE;
parts[RBSPI_PART_BIOS].mask_flags = MTD_WRITEABLE;
parts[RBSPI_PART_RBOOT2].name = "routerboot2";
parts[RBSPI_PART_RBOOT2].offset = parts[RBSPI_PART_BIOS].offset
+ RB_BIOS_SIZE;
parts[RBSPI_PART_RBOOT2].size = info->soft_cfg_offs
- parts[RBSPI_PART_RBOOT2].offset;
parts[RBSPI_PART_RBOOT2].mask_flags = MTD_WRITEABLE;
parts[RBSPI_PART_SCONF].name = "soft_config";
parts[RBSPI_PART_SCONF].offset = info->soft_cfg_offs;
parts[RBSPI_PART_SCONF].size = RB_SOFT_CFG_SIZE;
parts[RBSPI_PART_KERN].name = "kernel";
parts[RBSPI_PART_KERN].offset = parts[RBSPI_PART_SCONF].offset
+ parts[RBSPI_PART_SCONF].size;
parts[RBSPI_PART_KERN].size = RB_KERNEL_SIZE
- parts[RBSPI_PART_KERN].offset;
parts[RBSPI_PART_ROOT].name = "rootfs";
parts[RBSPI_PART_ROOT].offset = parts[RBSPI_PART_KERN].offset
+ parts[RBSPI_PART_KERN].size;
parts[RBSPI_PART_ROOT].size = MTDPART_SIZ_FULL;
}
static struct flash_platform_data rbspi_spi_flash_data = {
.parts = rbspi_spi_partitions,
.nr_parts = ARRAY_SIZE(rbspi_spi_partitions),
};
/* Several boards only have a single reset button wired to GPIO 16 */
#define RBSPI_GPIO_BTN_RESET16 16
static struct gpio_keys_button rbspi_gpio_keys_reset16[] __initdata = {
{
.desc = "Reset button",
.type = EV_KEY,
.code = KEY_RESTART,
.debounce_interval = RBSPI_KEYS_DEBOUNCE_INTERVAL,
.gpio = RBSPI_GPIO_BTN_RESET16,
.active_low = 1,
},
};
/* RB mAP L-2nD gpios */
#define RBMAPL_GPIO_LED_POWER 17
#define RBMAPL_GPIO_LED_USER 14
#define RBMAPL_GPIO_LED_ETH 4
#define RBMAPL_GPIO_LED_WLAN 11
static struct gpio_led rbmapl_leds[] __initdata = {
{
.name = "rb:green:power",
.gpio = RBMAPL_GPIO_LED_POWER,
.active_low = 0,
.default_state = LEDS_GPIO_DEFSTATE_ON,
}, {
.name = "rb:green:user",
.gpio = RBMAPL_GPIO_LED_USER,
.active_low = 0,
}, {
.name = "rb:green:eth",
.gpio = RBMAPL_GPIO_LED_ETH,
.active_low = 0,
}, {
.name = "rb:green:wlan",
.gpio = RBMAPL_GPIO_LED_WLAN,
.active_low = 0,
},
};
/* RB 941L-2nD gpios */
#define RBHAPL_GPIO_LED_USER 14
static struct gpio_led rbhapl_leds[] __initdata = {
{
.name = "rb:green:user",
.gpio = RBHAPL_GPIO_LED_USER,
.active_low = 1,
},
};
/* common RB SSRs */
#define RBSPI_SSR_GPIO_BASE 40
#define RBSPI_SSR_GPIO(bit) (RBSPI_SSR_GPIO_BASE + (bit))
/* RB 951Ui-2nD gpios */
#define RB952_SSR_BIT_LED_LAN1 0
#define RB952_SSR_BIT_LED_LAN2 1
#define RB952_SSR_BIT_LED_LAN3 2
#define RB952_SSR_BIT_LED_LAN4 3
#define RB952_SSR_BIT_LED_LAN5 4
#define RB952_SSR_BIT_USB_POWER 5
#define RB952_SSR_BIT_LED_WLAN 6
#define RB952_GPIO_SSR_CS 11
#define RB952_GPIO_LED_USER 4
#define RB952_GPIO_POE_POWER 14
#define RB952_GPIO_USB_POWER RBSPI_SSR_GPIO(RB952_SSR_BIT_USB_POWER)
#define RB952_GPIO_LED_LAN1 RBSPI_SSR_GPIO(RB952_SSR_BIT_LED_LAN1)
#define RB952_GPIO_LED_LAN2 RBSPI_SSR_GPIO(RB952_SSR_BIT_LED_LAN2)
#define RB952_GPIO_LED_LAN3 RBSPI_SSR_GPIO(RB952_SSR_BIT_LED_LAN3)
#define RB952_GPIO_LED_LAN4 RBSPI_SSR_GPIO(RB952_SSR_BIT_LED_LAN4)
#define RB952_GPIO_LED_LAN5 RBSPI_SSR_GPIO(RB952_SSR_BIT_LED_LAN5)
#define RB952_GPIO_LED_WLAN RBSPI_SSR_GPIO(RB952_SSR_BIT_LED_WLAN)
static struct gpio_led rb952_leds[] __initdata = {
{
.name = "rb:green:user",
.gpio = RB952_GPIO_LED_USER,
.active_low = 0,
}, {
.name = "rb:blue:wlan",
.gpio = RB952_GPIO_LED_WLAN,
.active_low = 1,
}, {
.name = "rb:green:port1",
.gpio = RB952_GPIO_LED_LAN1,
.active_low = 1,
}, {
.name = "rb:green:port2",
.gpio = RB952_GPIO_LED_LAN2,
.active_low = 1,
}, {
.name = "rb:green:port3",
.gpio = RB952_GPIO_LED_LAN3,
.active_low = 1,
}, {
.name = "rb:green:port4",
.gpio = RB952_GPIO_LED_LAN4,
.active_low = 1,
}, {
.name = "rb:green:port5",
.gpio = RB952_GPIO_LED_LAN5,
.active_low = 1,
},
};
static struct gen_74x164_chip_platform_data rbspi_ssr_data = {
.base = RBSPI_SSR_GPIO_BASE,
};
/* the spi-ath79 driver can only natively handle CS0. Other CS are bit-banged */
static int rbspi_spi_cs_gpios[] = {
-ENOENT, /* CS0 is always -ENOENT: natively handled */
-ENOENT, /* CS1 can be updated by the code as necessary */
};
static struct ath79_spi_platform_data rbspi_ath79_spi_data = {
.bus_num = 0,
.cs_gpios = rbspi_spi_cs_gpios,
};
/*
* Global spi_board_info: devices that don't have an SSR only have the SPI NOR
* flash on bus0 CS0, while devices that have an SSR add it on the same bus CS1
*/
static struct spi_board_info rbspi_spi_info[] = {
{
.bus_num = 0,
.chip_select = 0,
.max_speed_hz = 25000000,
.modalias = "m25p80",
.platform_data = &rbspi_spi_flash_data,
}, {
.bus_num = 0,
.chip_select = 1,
.max_speed_hz = 25000000,
.modalias = "74x164",
.platform_data = &rbspi_ssr_data,
}
};
void __init rbspi_wlan_init(int wmac_offset)
{
char *art_buf;
u8 wlan_mac[ETH_ALEN];
art_buf = rb_get_wlan_data();
if (!art_buf)
return;
ath79_init_mac(wlan_mac, ath79_mac_base, wmac_offset);
ath79_register_wmac(art_buf + 0x1000, wlan_mac);
kfree(art_buf);
}
/*
* Common platform init routine for all SPI NOR devices.
*/
static int __init rbspi_platform_setup(void)
{
const struct rb_info *info;
char buf[64];
info = rb_init_info((void *)(KSEG1ADDR(AR71XX_SPI_BASE)), 0x20000);
if (!info)
return -ENODEV;
scnprintf(buf, sizeof(buf), "MikroTik %s",
(info->board_name) ? info->board_name : "");
mips_set_machine_name(buf);
/* fix partitions based on flash parsing */
rbspi_init_partitions(info);
return 0;
}
/*
* Common peripherals init routine for all SPI NOR devices.
* Sets SPI and USB.
*/
static void __init rbspi_peripherals_setup(u32 flags)
{
unsigned spi_n;
if (flags & RBSPI_HAS_SSR)
spi_n = ARRAY_SIZE(rbspi_spi_info);
else
spi_n = 1; /* only one device on bus0 */
rbspi_ath79_spi_data.num_chipselect = spi_n;
rbspi_ath79_spi_data.cs_gpios = rbspi_spi_cs_gpios;
ath79_register_spi(&rbspi_ath79_spi_data, rbspi_spi_info, spi_n);
if (flags & RBSPI_HAS_USB)
ath79_register_usb();
}
/*
* Common network init routine for all SPI NOR devices.
* Sets LAN/WAN/WLAN.
*/
static void __init rbspi_network_setup(u32 flags, int gmac1_offset,
int wmac_offset)
{
/* for QCA953x that will init mdio1_device/data */
ath79_register_mdio(0, 0x0);
if (flags & RBSPI_HAS_WAN4) {
ath79_setup_ar934x_eth_cfg(0);
/* set switch to oper mode 1, PHY4 connected to CPU */
ath79_switch_data.phy4_mii_en = 1;
ath79_switch_data.phy_poll_mask |= BIT(4);
/* init GMAC0 connected to PHY4 at 100M */
ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
ath79_eth0_data.phy_mask = BIT(4);
ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
ath79_register_eth(0);
} else {
/* set the SoC to SW_ONLY_MODE, which connects all PHYs
* to the internal switch.
* We hijack ath79_setup_ar934x_eth_cfg() to set the switch in
* the QCA953x, this works because this configuration bit is
* the same as the AR934x. There's no equivalent function for
* QCA953x for now. */
ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_SW_ONLY_MODE);
}
/* init GMAC1 */
ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, gmac1_offset);
ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
ath79_register_eth(1);
if (flags & RBSPI_HAS_WLAN)
rbspi_wlan_init(wmac_offset);
}
/*
* Init the mAP lite hardware.
* The mAP L-2nD (mAP lite) has a single ethernet port, connected to PHY0.
* Trying to use GMAC0 in direct mode was unsucessful, so we're
* using SW_ONLY_MODE, which connects PHY0 to MAC1 on the internal
* switch, which is connected to GMAC1 on the SoC. GMAC0 is unused.
*/
static void __init rbmapl_setup(void)
{
u32 flags = RBSPI_HAS_WLAN;
if (rbspi_platform_setup())
return;
rbspi_peripherals_setup(flags);
/* GMAC1 is HW MAC, WLAN MAC is HW MAC + 1 */
rbspi_network_setup(flags, 0, 1);
ath79_register_leds_gpio(-1, ARRAY_SIZE(rbmapl_leds), rbmapl_leds);
/* mAP lite has a single reset button as gpio 16 */
ath79_register_gpio_keys_polled(-1, RBSPI_KEYS_POLL_INTERVAL,
ARRAY_SIZE(rbspi_gpio_keys_reset16),
rbspi_gpio_keys_reset16);
/* clear internal multiplexing */
ath79_gpio_output_select(RBMAPL_GPIO_LED_ETH, AR934X_GPIO_OUT_GPIO);
ath79_gpio_output_select(RBMAPL_GPIO_LED_POWER, AR934X_GPIO_OUT_GPIO);
}
/*
* Init the hAP lite hardware.
* The 941-2nD (hAP lite) has 4 ethernet ports, with port 2-4
* being assigned to LAN on the casing, and port 1 being assigned
* to "internet" (WAN) on the casing. Port 1 is connected to PHY3.
* Since WAN is neither PHY0 nor PHY4, we cannot use GMAC0 with this device.
*/
static void __init rbhapl_setup(void)
{
u32 flags = RBSPI_HAS_WLAN;
if (rbspi_platform_setup())
return;
rbspi_peripherals_setup(flags);
/* GMAC1 is HW MAC, WLAN MAC is HW MAC + 4 */
rbspi_network_setup(flags, 0, 4);
ath79_register_leds_gpio(-1, ARRAY_SIZE(rbhapl_leds), rbhapl_leds);
/* hAP lite has a single reset button as gpio 16 */
ath79_register_gpio_keys_polled(-1, RBSPI_KEYS_POLL_INTERVAL,
ARRAY_SIZE(rbspi_gpio_keys_reset16),
rbspi_gpio_keys_reset16);
}
/*
* Init the hAP hardware.
* The 951Ui-2nD (hAP) has 5 ethernet ports, with ports 2-5 being assigned
* to LAN on the casing, and port 1 being assigned to "internet" (WAN).
* Port 1 is connected to PHY4 (the ports are labelled in reverse physical
* number), so the SoC can be set to connect GMAC0 to PHY4 and GMAC1 to the
* internal switch for the LAN ports.
* The device also has USB, PoE output and an SSR used for LED multiplexing.
*/
static void __init rb952_setup(void)
{
u32 flags = RBSPI_HAS_WLAN | RBSPI_HAS_WAN4 | RBSPI_HAS_USB |
RBSPI_HAS_SSR;
if (rbspi_platform_setup())
return;
rbspi_spi_cs_gpios[1] = RB952_GPIO_SSR_CS;
rbspi_peripherals_setup(flags);
/* GMAC1 is HW MAC + 1, WLAN MAC IS HW MAC + 5 */
rbspi_network_setup(flags, 1, 5);
gpio_request_one(RB952_GPIO_USB_POWER,
GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
"USB power");
gpio_request_one(RB952_GPIO_POE_POWER,
GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
"POE power");
ath79_register_leds_gpio(-1, ARRAY_SIZE(rb952_leds), rb952_leds);
/* hAP has a single reset button as gpio 16 */
ath79_register_gpio_keys_polled(-1, RBSPI_KEYS_POLL_INTERVAL,
ARRAY_SIZE(rbspi_gpio_keys_reset16),
rbspi_gpio_keys_reset16);
}
MIPS_MACHINE_NONAME(ATH79_MACH_RB_MAPL, "map-hb", rbmapl_setup);
MIPS_MACHINE_NONAME(ATH79_MACH_RB_941, "H951L", rbhapl_setup);
MIPS_MACHINE_NONAME(ATH79_MACH_RB_952, "952-hb", rb952_setup);