/* * arch/arm/mach-orion5x/kurobox_pro-setup.c * * Maintainer: Ronen Shitrit <rshitrit@marvell.com> * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/pci.h> #include <linux/irq.h> #include <linux/delay.h> #include <linux/mtd/physmap.h> #include <linux/mtd/nand.h> #include <linux/mv643xx_eth.h> #include <linux/i2c.h> #include <linux/serial_reg.h> #include <linux/ata_platform.h> #include <asm/mach-types.h> #include <asm/gpio.h> #include <asm/mach/arch.h> #include <asm/mach/pci.h> #include <mach/orion5x.h> #include <plat/orion_nand.h> #include "common.h" #include "mpp.h" /***************************************************************************** * KUROBOX-PRO Info ****************************************************************************/ /* * 256K NOR flash Device bus boot chip select */ #define KUROBOX_PRO_NOR_BOOT_BASE 0xf4000000 #define KUROBOX_PRO_NOR_BOOT_SIZE SZ_256K /* * 256M NAND flash on Device bus chip select 1 */ #define KUROBOX_PRO_NAND_BASE 0xfc000000 #define KUROBOX_PRO_NAND_SIZE SZ_2M /***************************************************************************** * 256MB NAND Flash on Device bus CS0 ****************************************************************************/ static struct mtd_partition kurobox_pro_nand_parts[] = { { .name = "uImage", .offset = 0, .size = SZ_4M, }, { .name = "rootfs", .offset = SZ_4M, .size = SZ_64M, }, { .name = "extra", .offset = SZ_4M + SZ_64M, .size = SZ_256M - (SZ_4M + SZ_64M), }, }; static struct resource kurobox_pro_nand_resource = { .flags = IORESOURCE_MEM, .start = KUROBOX_PRO_NAND_BASE, .end = KUROBOX_PRO_NAND_BASE + KUROBOX_PRO_NAND_SIZE - 1, }; static struct orion_nand_data kurobox_pro_nand_data = { .parts = kurobox_pro_nand_parts, .nr_parts = ARRAY_SIZE(kurobox_pro_nand_parts), .cle = 0, .ale = 1, .width = 8, }; static struct platform_device kurobox_pro_nand_flash = { .name = "orion_nand", .id = -1, .dev = { .platform_data = &kurobox_pro_nand_data, }, .resource = &kurobox_pro_nand_resource, .num_resources = 1, }; /***************************************************************************** * 256KB NOR Flash on BOOT Device ****************************************************************************/ static struct physmap_flash_data kurobox_pro_nor_flash_data = { .width = 1, }; static struct resource kurobox_pro_nor_flash_resource = { .flags = IORESOURCE_MEM, .start = KUROBOX_PRO_NOR_BOOT_BASE, .end = KUROBOX_PRO_NOR_BOOT_BASE + KUROBOX_PRO_NOR_BOOT_SIZE - 1, }; static struct platform_device kurobox_pro_nor_flash = { .name = "physmap-flash", .id = 0, .dev = { .platform_data = &kurobox_pro_nor_flash_data, }, .num_resources = 1, .resource = &kurobox_pro_nor_flash_resource, }; /***************************************************************************** * PCI ****************************************************************************/ static int __init kurobox_pro_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) { int irq; /* * Check for devices with hard-wired IRQs. */ irq = orion5x_pci_map_irq(dev, slot, pin); if (irq != -1) return irq; /* * PCI isn't used on the Kuro */ return -1; } static struct hw_pci kurobox_pro_pci __initdata = { .nr_controllers = 2, .swizzle = pci_std_swizzle, .setup = orion5x_pci_sys_setup, .scan = orion5x_pci_sys_scan_bus, .map_irq = kurobox_pro_pci_map_irq, }; static int __init kurobox_pro_pci_init(void) { if (machine_is_kurobox_pro()) { orion5x_pci_disable(); pci_common_init(&kurobox_pro_pci); } return 0; } subsys_initcall(kurobox_pro_pci_init); /***************************************************************************** * Ethernet ****************************************************************************/ static struct mv643xx_eth_platform_data kurobox_pro_eth_data = { .phy_addr = MV643XX_ETH_PHY_ADDR(8), }; /***************************************************************************** * RTC 5C372a on I2C bus ****************************************************************************/ static struct i2c_board_info __initdata kurobox_pro_i2c_rtc = { I2C_BOARD_INFO("rs5c372a", 0x32), }; /***************************************************************************** * SATA ****************************************************************************/ static struct mv_sata_platform_data kurobox_pro_sata_data = { .n_ports = 2, }; /***************************************************************************** * Kurobox Pro specific power off method via UART1-attached microcontroller ****************************************************************************/ #define UART1_REG(x) (UART1_VIRT_BASE + ((UART_##x) << 2)) static int kurobox_pro_miconread(unsigned char *buf, int count) { int i; int timeout; for (i = 0; i < count; i++) { timeout = 10; while (!(readl(UART1_REG(LSR)) & UART_LSR_DR)) { if (--timeout == 0) break; udelay(1000); } if (timeout == 0) break; buf[i] = readl(UART1_REG(RX)); } /* return read bytes */ return i; } static int kurobox_pro_miconwrite(const unsigned char *buf, int count) { int i = 0; while (count--) { while (!(readl(UART1_REG(LSR)) & UART_LSR_THRE)) barrier(); writel(buf[i++], UART1_REG(TX)); } return 0; } static int kurobox_pro_miconsend(const unsigned char *data, int count) { int i; unsigned char checksum = 0; unsigned char recv_buf[40]; unsigned char send_buf[40]; unsigned char correct_ack[3]; int retry = 2; /* Generate checksum */ for (i = 0; i < count; i++) checksum -= data[i]; do { /* Send data */ kurobox_pro_miconwrite(data, count); /* send checksum */ kurobox_pro_miconwrite(&checksum, 1); if (kurobox_pro_miconread(recv_buf, sizeof(recv_buf)) <= 3) { printk(KERN_ERR ">%s: receive failed.\n", __func__); /* send preamble to clear the receive buffer */ memset(&send_buf, 0xff, sizeof(send_buf)); kurobox_pro_miconwrite(send_buf, sizeof(send_buf)); /* make dummy reads */ mdelay(100); kurobox_pro_miconread(recv_buf, sizeof(recv_buf)); } else { /* Generate expected ack */ correct_ack[0] = 0x01; correct_ack[1] = data[1]; correct_ack[2] = 0x00; /* checksum Check */ if ((recv_buf[0] + recv_buf[1] + recv_buf[2] + recv_buf[3]) & 0xFF) { printk(KERN_ERR ">%s: Checksum Error : " "Received data[%02x, %02x, %02x, %02x]" "\n", __func__, recv_buf[0], recv_buf[1], recv_buf[2], recv_buf[3]); } else { /* Check Received Data */ if (correct_ack[0] == recv_buf[0] && correct_ack[1] == recv_buf[1] && correct_ack[2] == recv_buf[2]) { /* Interval for next command */ mdelay(10); /* Receive ACK */ return 0; } } /* Received NAK or illegal Data */ printk(KERN_ERR ">%s: Error : NAK or Illegal Data " "Received\n", __func__); } } while (retry--); /* Interval for next command */ mdelay(10); return -1; } static void kurobox_pro_power_off(void) { const unsigned char watchdogkill[] = {0x01, 0x35, 0x00}; const unsigned char shutdownwait[] = {0x00, 0x0c}; const unsigned char poweroff[] = {0x00, 0x06}; /* 38400 baud divisor */ const unsigned divisor = ((orion5x_tclk + (8 * 38400)) / (16 * 38400)); pr_info("%s: triggering power-off...\n", __func__); /* hijack uart1 and reset into sane state (38400,8n1,even parity) */ writel(0x83, UART1_REG(LCR)); writel(divisor & 0xff, UART1_REG(DLL)); writel((divisor >> 8) & 0xff, UART1_REG(DLM)); writel(0x1b, UART1_REG(LCR)); writel(0x00, UART1_REG(IER)); writel(0x07, UART1_REG(FCR)); writel(0x00, UART1_REG(MCR)); /* Send the commands to shutdown the Kurobox Pro */ kurobox_pro_miconsend(watchdogkill, sizeof(watchdogkill)) ; kurobox_pro_miconsend(shutdownwait, sizeof(shutdownwait)) ; kurobox_pro_miconsend(poweroff, sizeof(poweroff)); } /***************************************************************************** * General Setup ****************************************************************************/ static struct orion5x_mpp_mode kurobox_pro_mpp_modes[] __initdata = { { 0, MPP_UNUSED }, { 1, MPP_UNUSED }, { 2, MPP_GPIO }, /* GPIO Micon */ { 3, MPP_GPIO }, /* GPIO Rtc */ { 4, MPP_UNUSED }, { 5, MPP_UNUSED }, { 6, MPP_NAND }, /* NAND Flash REn */ { 7, MPP_NAND }, /* NAND Flash WEn */ { 8, MPP_UNUSED }, { 9, MPP_UNUSED }, { 10, MPP_UNUSED }, { 11, MPP_UNUSED }, { 12, MPP_SATA_LED }, /* SATA 0 presence */ { 13, MPP_SATA_LED }, /* SATA 1 presence */ { 14, MPP_SATA_LED }, /* SATA 0 active */ { 15, MPP_SATA_LED }, /* SATA 1 active */ { 16, MPP_UART }, /* UART1 RXD */ { 17, MPP_UART }, /* UART1 TXD */ { 18, MPP_UART }, /* UART1 CTSn */ { 19, MPP_UART }, /* UART1 RTSn */ { -1 }, }; static void __init kurobox_pro_init(void) { /* * Setup basic Orion functions. Need to be called early. */ orion5x_init(); orion5x_mpp_conf(kurobox_pro_mpp_modes); /* * Configure peripherals. */ orion5x_ehci0_init(); orion5x_ehci1_init(); orion5x_eth_init(&kurobox_pro_eth_data); orion5x_i2c_init(); orion5x_sata_init(&kurobox_pro_sata_data); orion5x_uart0_init(); orion5x_uart1_init(); orion5x_xor_init(); orion5x_setup_dev_boot_win(KUROBOX_PRO_NOR_BOOT_BASE, KUROBOX_PRO_NOR_BOOT_SIZE); platform_device_register(&kurobox_pro_nor_flash); if (machine_is_kurobox_pro()) { orion5x_setup_dev0_win(KUROBOX_PRO_NAND_BASE, KUROBOX_PRO_NAND_SIZE); platform_device_register(&kurobox_pro_nand_flash); } i2c_register_board_info(0, &kurobox_pro_i2c_rtc, 1); /* register Kurobox Pro specific power-off method */ pm_power_off = kurobox_pro_power_off; } #ifdef CONFIG_MACH_KUROBOX_PRO MACHINE_START(KUROBOX_PRO, "Buffalo/Revogear Kurobox Pro") /* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */ .phys_io = ORION5X_REGS_PHYS_BASE, .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC, .boot_params = 0x00000100, .init_machine = kurobox_pro_init, .map_io = orion5x_map_io, .init_irq = orion5x_init_irq, .timer = &orion5x_timer, .fixup = tag_fixup_mem32, MACHINE_END #endif #ifdef CONFIG_MACH_LINKSTATION_PRO MACHINE_START(LINKSTATION_PRO, "Buffalo Linkstation Pro/Live") /* Maintainer: Byron Bradley <byron.bbradley@gmail.com> */ .phys_io = ORION5X_REGS_PHYS_BASE, .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC, .boot_params = 0x00000100, .init_machine = kurobox_pro_init, .map_io = orion5x_map_io, .init_irq = orion5x_init_irq, .timer = &orion5x_timer, .fixup = tag_fixup_mem32, MACHINE_END #endif