diff options
Diffstat (limited to 'arch/mips/momentum/ocelot_3/platform.c')
| -rw-r--r-- | arch/mips/momentum/ocelot_3/platform.c | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/arch/mips/momentum/ocelot_3/platform.c b/arch/mips/momentum/ocelot_3/platform.c deleted file mode 100644 index cb63c82ef650..000000000000 --- a/arch/mips/momentum/ocelot_3/platform.c +++ /dev/null @@ -1,252 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2006, 07 Ralf Baechle (ralf@linux-mips.org) - * Copyright (C) 2007 Dale Farnsworth (dale@farnsworth.org) - */ -#include <linux/delay.h> -#include <linux/if_ether.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/module.h> -#include <linux/mv643xx.h> -#include <linux/platform_device.h> -#include <linux/serial_8250.h> - -#include "ocelot_3_fpga.h" - -#if defined(CONFIG_MV643XX_ETH) || defined(CONFIG_MV643XX_ETH_MODULE) - -static struct resource mv643xx_eth_shared_resources[] = { - [0] = { - .name = "ethernet shared base", - .start = 0xf1000000 + MV643XX_ETH_SHARED_REGS, - .end = 0xf1000000 + MV643XX_ETH_SHARED_REGS + - MV643XX_ETH_SHARED_REGS_SIZE - 1, - .flags = IORESOURCE_MEM, - }, -}; - -static struct platform_device mv643xx_eth_shared_device = { - .name = MV643XX_ETH_SHARED_NAME, - .id = 0, - .num_resources = ARRAY_SIZE(mv643xx_eth_shared_resources), - .resource = mv643xx_eth_shared_resources, -}; - -#define MV_SRAM_BASE 0xfe000000UL -#define MV_SRAM_SIZE (256 * 1024) - -#define MV_SRAM_RXRING_SIZE (MV_SRAM_SIZE / 4) -#define MV_SRAM_TXRING_SIZE (MV_SRAM_SIZE / 4) - -#define MV_SRAM_BASE_ETH0 MV_SRAM_BASE -#define MV_SRAM_BASE_ETH1 (MV_SRAM_BASE + (MV_SRAM_SIZE / 2)) - -#define MV64x60_IRQ_ETH_0 48 -#define MV64x60_IRQ_ETH_1 49 -#define MV64x60_IRQ_ETH_2 50 - -static struct resource mv64x60_eth0_resources[] = { - [0] = { - .name = "eth0 irq", - .start = MV64x60_IRQ_ETH_0, - .end = MV64x60_IRQ_ETH_0, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct mv643xx_eth_platform_data eth0_pd = { - .port_number = 0, - - .tx_sram_addr = MV_SRAM_BASE_ETH0, - .tx_sram_size = MV_SRAM_TXRING_SIZE, - .tx_queue_size = MV_SRAM_TXRING_SIZE / 16, - - .rx_sram_addr = MV_SRAM_BASE_ETH0 + MV_SRAM_TXRING_SIZE, - .rx_sram_size = MV_SRAM_RXRING_SIZE, - .rx_queue_size = MV_SRAM_RXRING_SIZE / 16, -}; - -static struct platform_device eth0_device = { - .name = MV643XX_ETH_NAME, - .id = 0, - .num_resources = ARRAY_SIZE(mv64x60_eth0_resources), - .resource = mv64x60_eth0_resources, - .dev = { - .platform_data = ð0_pd, - }, -}; - -static struct resource mv64x60_eth1_resources[] = { - [0] = { - .name = "eth1 irq", - .start = MV64x60_IRQ_ETH_1, - .end = MV64x60_IRQ_ETH_1, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct mv643xx_eth_platform_data eth1_pd = { - .port_number = 1, - - .tx_sram_addr = MV_SRAM_BASE_ETH1, - .tx_sram_size = MV_SRAM_TXRING_SIZE, - .tx_queue_size = MV_SRAM_TXRING_SIZE / 16, - - .rx_sram_addr = MV_SRAM_BASE_ETH1 + MV_SRAM_TXRING_SIZE, - .rx_sram_size = MV_SRAM_RXRING_SIZE, - .rx_queue_size = MV_SRAM_RXRING_SIZE / 16, -}; - -static struct platform_device eth1_device = { - .name = MV643XX_ETH_NAME, - .id = 1, - .num_resources = ARRAY_SIZE(mv64x60_eth1_resources), - .resource = mv64x60_eth1_resources, - .dev = { - .platform_data = ð1_pd, - }, -}; - -static struct resource mv64x60_eth2_resources[] = { - [0] = { - .name = "eth2 irq", - .start = MV64x60_IRQ_ETH_2, - .end = MV64x60_IRQ_ETH_2, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct mv643xx_eth_platform_data eth2_pd = { - .port_number = 2, -}; - -static struct platform_device eth2_device = { - .name = MV643XX_ETH_NAME, - .id = 2, - .num_resources = ARRAY_SIZE(mv64x60_eth2_resources), - .resource = mv64x60_eth2_resources, - .dev = { - .platform_data = ð2_pd, - }, -}; - -static struct platform_device *mv643xx_eth_pd_devs[] __initdata = { - &mv643xx_eth_shared_device, - ð0_device, - ð1_device, - ð2_device, -}; - -static u8 __init exchange_bit(u8 val, u8 cs) -{ - /* place the data */ - OCELOT_FPGA_WRITE((val << 2) | cs, EEPROM_MODE); - udelay(1); - - /* turn the clock on */ - OCELOT_FPGA_WRITE((val << 2) | cs | 0x2, EEPROM_MODE); - udelay(1); - - /* turn the clock off and read-strobe */ - OCELOT_FPGA_WRITE((val << 2) | cs | 0x10, EEPROM_MODE); - - /* return the data */ - return (OCELOT_FPGA_READ(EEPROM_MODE) >> 3) & 0x1; -} - -static void __init get_mac(char dest[6]) -{ - u8 read_opcode[12] = {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; - int i,j; - - for (i = 0; i < 12; i++) - exchange_bit(read_opcode[i], 1); - - for (j = 0; j < 6; j++) { - dest[j] = 0; - for (i = 0; i < 8; i++) { - dest[j] <<= 1; - dest[j] |= exchange_bit(0, 1); - } - } - - /* turn off CS */ - exchange_bit(0,0); -} - -/* - * Copy and increment ethernet MAC address by a small value. - * - * This is useful for systems where the only one MAC address is stored in - * non-volatile memory for multiple ports. - */ -static inline void eth_mac_add(unsigned char *dst, unsigned char *src, - unsigned int add) -{ - int i; - - BUG_ON(add >= 256); - - for (i = ETH_ALEN; i >= 0; i--) { - dst[i] = src[i] + add; - add = dst[i] < src[i]; /* compute carry */ - } - - WARN_ON(add); -} - -static int __init mv643xx_eth_add_pds(void) -{ - unsigned char mac[ETH_ALEN]; - int ret; - - get_mac(mac); - eth_mac_add(eth0_pd.mac_addr, mac, 0); - eth_mac_add(eth1_pd.mac_addr, mac, 1); - eth_mac_add(eth2_pd.mac_addr, mac, 2); - ret = platform_add_devices(mv643xx_eth_pd_devs, - ARRAY_SIZE(mv643xx_eth_pd_devs)); - - return ret; -} - -device_initcall(mv643xx_eth_add_pds); - -#endif /* defined(CONFIG_MV643XX_ETH) || defined(CONFIG_MV643XX_ETH_MODULE) */ - -#define OCELOT3_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST) - -static struct plat_serial8250_port uart8250_data[] = { - { - .membase = (signed long) 0xfd000020, - .irq = 6, - .uartclk = 20000000, - .iotype = UPIO_MEM, - .flags = OCELOT3_UART_FLAGS, - .regshift = 2, - }, - { }, -}; - -static struct platform_device uart8250_device = { - .name = "serial8250", - .id = PLAT8250_DEV_PLATFORM, - .dev = { - .platform_data = uart8250_data, - }, -}; - -static int __init uart8250_init(void) -{ - return platform_device_register(&uart8250_device); -} - -module_init(uart8250_init); - -MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("8250 UART probe driver for the Ocelot 3"); |