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410 lines
11 KiB
410 lines
11 KiB
/* |
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* arch/arm/mach-orion5x/kurobox_pro-setup.c |
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* |
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* Maintainer: Ronen Shitrit <[email protected]> |
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* |
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* This file is licensed under the terms of the GNU General Public |
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* License version 2. This program is licensed "as is" without any |
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* warranty of any kind, whether express or implied. |
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*/ |
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#include <linux/gpio.h> |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/platform_device.h> |
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#include <linux/pci.h> |
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#include <linux/irq.h> |
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#include <linux/delay.h> |
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#include <linux/mtd/physmap.h> |
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#include <linux/mtd/rawnand.h> |
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#include <linux/mv643xx_eth.h> |
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#include <linux/i2c.h> |
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#include <linux/serial_reg.h> |
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#include <linux/ata_platform.h> |
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#include <asm/mach-types.h> |
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#include <asm/mach/arch.h> |
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#include <asm/mach/pci.h> |
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#include <linux/platform_data/mtd-orion_nand.h> |
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#include "common.h" |
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#include "mpp.h" |
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#include "orion5x.h" |
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/***************************************************************************** |
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* KUROBOX-PRO Info |
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****************************************************************************/ |
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/* |
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* 256K NOR flash Device bus boot chip select |
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*/ |
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#define KUROBOX_PRO_NOR_BOOT_BASE 0xf4000000 |
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#define KUROBOX_PRO_NOR_BOOT_SIZE SZ_256K |
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/* |
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* 256M NAND flash on Device bus chip select 1 |
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*/ |
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#define KUROBOX_PRO_NAND_BASE 0xfc000000 |
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#define KUROBOX_PRO_NAND_SIZE SZ_2M |
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/***************************************************************************** |
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* 256MB NAND Flash on Device bus CS0 |
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****************************************************************************/ |
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static struct mtd_partition kurobox_pro_nand_parts[] = { |
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{ |
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.name = "uImage", |
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.offset = 0, |
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.size = SZ_4M, |
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}, { |
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.name = "rootfs", |
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.offset = SZ_4M, |
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.size = SZ_64M, |
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}, { |
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.name = "extra", |
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.offset = SZ_4M + SZ_64M, |
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.size = SZ_256M - (SZ_4M + SZ_64M), |
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}, |
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}; |
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static struct resource kurobox_pro_nand_resource = { |
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.flags = IORESOURCE_MEM, |
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.start = KUROBOX_PRO_NAND_BASE, |
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.end = KUROBOX_PRO_NAND_BASE + KUROBOX_PRO_NAND_SIZE - 1, |
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}; |
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static struct orion_nand_data kurobox_pro_nand_data = { |
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.parts = kurobox_pro_nand_parts, |
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.nr_parts = ARRAY_SIZE(kurobox_pro_nand_parts), |
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.cle = 0, |
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.ale = 1, |
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.width = 8, |
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}; |
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static struct platform_device kurobox_pro_nand_flash = { |
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.name = "orion_nand", |
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.id = -1, |
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.dev = { |
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.platform_data = &kurobox_pro_nand_data, |
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}, |
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.resource = &kurobox_pro_nand_resource, |
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.num_resources = 1, |
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}; |
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/***************************************************************************** |
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* 256KB NOR Flash on BOOT Device |
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****************************************************************************/ |
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static struct physmap_flash_data kurobox_pro_nor_flash_data = { |
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.width = 1, |
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}; |
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static struct resource kurobox_pro_nor_flash_resource = { |
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.flags = IORESOURCE_MEM, |
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.start = KUROBOX_PRO_NOR_BOOT_BASE, |
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.end = KUROBOX_PRO_NOR_BOOT_BASE + KUROBOX_PRO_NOR_BOOT_SIZE - 1, |
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}; |
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static struct platform_device kurobox_pro_nor_flash = { |
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.name = "physmap-flash", |
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.id = 0, |
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.dev = { |
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.platform_data = &kurobox_pro_nor_flash_data, |
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}, |
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.num_resources = 1, |
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.resource = &kurobox_pro_nor_flash_resource, |
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}; |
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/***************************************************************************** |
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* PCI |
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****************************************************************************/ |
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static int __init kurobox_pro_pci_map_irq(const struct pci_dev *dev, u8 slot, |
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u8 pin) |
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{ |
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int irq; |
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/* |
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* Check for devices with hard-wired IRQs. |
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*/ |
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irq = orion5x_pci_map_irq(dev, slot, pin); |
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if (irq != -1) |
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return irq; |
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/* |
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* PCI isn't used on the Kuro |
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*/ |
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return -1; |
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} |
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static struct hw_pci kurobox_pro_pci __initdata = { |
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.nr_controllers = 2, |
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.setup = orion5x_pci_sys_setup, |
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.scan = orion5x_pci_sys_scan_bus, |
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.map_irq = kurobox_pro_pci_map_irq, |
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}; |
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static int __init kurobox_pro_pci_init(void) |
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{ |
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if (machine_is_kurobox_pro()) { |
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orion5x_pci_disable(); |
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pci_common_init(&kurobox_pro_pci); |
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} |
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return 0; |
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} |
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subsys_initcall(kurobox_pro_pci_init); |
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/***************************************************************************** |
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* Ethernet |
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****************************************************************************/ |
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static struct mv643xx_eth_platform_data kurobox_pro_eth_data = { |
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.phy_addr = MV643XX_ETH_PHY_ADDR(8), |
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}; |
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/***************************************************************************** |
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* RTC 5C372a on I2C bus |
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****************************************************************************/ |
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static struct i2c_board_info __initdata kurobox_pro_i2c_rtc = { |
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I2C_BOARD_INFO("rs5c372a", 0x32), |
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}; |
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/***************************************************************************** |
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* SATA |
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****************************************************************************/ |
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static struct mv_sata_platform_data kurobox_pro_sata_data = { |
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.n_ports = 2, |
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}; |
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/***************************************************************************** |
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* Kurobox Pro specific power off method via UART1-attached microcontroller |
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****************************************************************************/ |
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#define UART1_REG(x) (UART1_VIRT_BASE + ((UART_##x) << 2)) |
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static int kurobox_pro_miconread(unsigned char *buf, int count) |
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{ |
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int i; |
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int timeout; |
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for (i = 0; i < count; i++) { |
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timeout = 10; |
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while (!(readl(UART1_REG(LSR)) & UART_LSR_DR)) { |
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if (--timeout == 0) |
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break; |
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udelay(1000); |
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} |
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if (timeout == 0) |
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break; |
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buf[i] = readl(UART1_REG(RX)); |
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} |
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/* return read bytes */ |
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return i; |
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} |
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static int kurobox_pro_miconwrite(const unsigned char *buf, int count) |
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{ |
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int i = 0; |
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while (count--) { |
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while (!(readl(UART1_REG(LSR)) & UART_LSR_THRE)) |
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barrier(); |
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writel(buf[i++], UART1_REG(TX)); |
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} |
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return 0; |
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} |
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static int kurobox_pro_miconsend(const unsigned char *data, int count) |
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{ |
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int i; |
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unsigned char checksum = 0; |
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unsigned char recv_buf[40]; |
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unsigned char send_buf[40]; |
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unsigned char correct_ack[3]; |
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int retry = 2; |
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/* Generate checksum */ |
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for (i = 0; i < count; i++) |
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checksum -= data[i]; |
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do { |
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/* Send data */ |
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kurobox_pro_miconwrite(data, count); |
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/* send checksum */ |
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kurobox_pro_miconwrite(&checksum, 1); |
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if (kurobox_pro_miconread(recv_buf, sizeof(recv_buf)) <= 3) { |
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printk(KERN_ERR ">%s: receive failed.\n", __func__); |
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/* send preamble to clear the receive buffer */ |
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memset(&send_buf, 0xff, sizeof(send_buf)); |
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kurobox_pro_miconwrite(send_buf, sizeof(send_buf)); |
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/* make dummy reads */ |
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mdelay(100); |
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kurobox_pro_miconread(recv_buf, sizeof(recv_buf)); |
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} else { |
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/* Generate expected ack */ |
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correct_ack[0] = 0x01; |
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correct_ack[1] = data[1]; |
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correct_ack[2] = 0x00; |
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/* checksum Check */ |
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if ((recv_buf[0] + recv_buf[1] + recv_buf[2] + |
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recv_buf[3]) & 0xFF) { |
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printk(KERN_ERR ">%s: Checksum Error : " |
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"Received data[%02x, %02x, %02x, %02x]" |
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"\n", __func__, recv_buf[0], |
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recv_buf[1], recv_buf[2], recv_buf[3]); |
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} else { |
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/* Check Received Data */ |
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if (correct_ack[0] == recv_buf[0] && |
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correct_ack[1] == recv_buf[1] && |
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correct_ack[2] == recv_buf[2]) { |
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/* Interval for next command */ |
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mdelay(10); |
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/* Receive ACK */ |
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return 0; |
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} |
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} |
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/* Received NAK or illegal Data */ |
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printk(KERN_ERR ">%s: Error : NAK or Illegal Data " |
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"Received\n", __func__); |
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} |
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} while (retry--); |
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/* Interval for next command */ |
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mdelay(10); |
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return -1; |
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} |
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static void kurobox_pro_power_off(void) |
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{ |
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const unsigned char watchdogkill[] = {0x01, 0x35, 0x00}; |
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const unsigned char shutdownwait[] = {0x00, 0x0c}; |
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const unsigned char poweroff[] = {0x00, 0x06}; |
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/* 38400 baud divisor */ |
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const unsigned divisor = ((orion5x_tclk + (8 * 38400)) / (16 * 38400)); |
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pr_info("%s: triggering power-off...\n", __func__); |
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/* hijack uart1 and reset into sane state (38400,8n1,even parity) */ |
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writel(0x83, UART1_REG(LCR)); |
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writel(divisor & 0xff, UART1_REG(DLL)); |
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writel((divisor >> 8) & 0xff, UART1_REG(DLM)); |
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writel(0x1b, UART1_REG(LCR)); |
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writel(0x00, UART1_REG(IER)); |
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writel(0x07, UART1_REG(FCR)); |
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writel(0x00, UART1_REG(MCR)); |
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/* Send the commands to shutdown the Kurobox Pro */ |
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kurobox_pro_miconsend(watchdogkill, sizeof(watchdogkill)) ; |
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kurobox_pro_miconsend(shutdownwait, sizeof(shutdownwait)) ; |
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kurobox_pro_miconsend(poweroff, sizeof(poweroff)); |
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} |
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/***************************************************************************** |
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* General Setup |
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****************************************************************************/ |
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static unsigned int kurobox_pro_mpp_modes[] __initdata = { |
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MPP0_UNUSED, |
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MPP1_UNUSED, |
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MPP2_GPIO, /* GPIO Micon */ |
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MPP3_GPIO, /* GPIO Rtc */ |
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MPP4_UNUSED, |
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MPP5_UNUSED, |
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MPP6_NAND, /* NAND Flash REn */ |
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MPP7_NAND, /* NAND Flash WEn */ |
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MPP8_UNUSED, |
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MPP9_UNUSED, |
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MPP10_UNUSED, |
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MPP11_UNUSED, |
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MPP12_SATA_LED, /* SATA 0 presence */ |
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MPP13_SATA_LED, /* SATA 1 presence */ |
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MPP14_SATA_LED, /* SATA 0 active */ |
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MPP15_SATA_LED, /* SATA 1 active */ |
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MPP16_UART, /* UART1 RXD */ |
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MPP17_UART, /* UART1 TXD */ |
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MPP18_UART, /* UART1 CTSn */ |
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MPP19_UART, /* UART1 RTSn */ |
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0, |
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}; |
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static void __init kurobox_pro_init(void) |
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{ |
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/* |
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* Setup basic Orion functions. Need to be called early. |
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*/ |
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orion5x_init(); |
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orion5x_mpp_conf(kurobox_pro_mpp_modes); |
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/* |
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* Configure peripherals. |
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*/ |
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orion5x_ehci0_init(); |
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orion5x_ehci1_init(); |
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orion5x_eth_init(&kurobox_pro_eth_data); |
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orion5x_i2c_init(); |
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orion5x_sata_init(&kurobox_pro_sata_data); |
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orion5x_uart0_init(); |
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orion5x_uart1_init(); |
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orion5x_xor_init(); |
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mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET, |
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ORION_MBUS_DEVBUS_BOOT_ATTR, |
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KUROBOX_PRO_NOR_BOOT_BASE, |
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KUROBOX_PRO_NOR_BOOT_SIZE); |
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platform_device_register(&kurobox_pro_nor_flash); |
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if (machine_is_kurobox_pro()) { |
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mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_TARGET(0), |
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ORION_MBUS_DEVBUS_ATTR(0), |
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KUROBOX_PRO_NAND_BASE, |
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KUROBOX_PRO_NAND_SIZE); |
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platform_device_register(&kurobox_pro_nand_flash); |
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} |
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i2c_register_board_info(0, &kurobox_pro_i2c_rtc, 1); |
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/* register Kurobox Pro specific power-off method */ |
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pm_power_off = kurobox_pro_power_off; |
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} |
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#ifdef CONFIG_MACH_KUROBOX_PRO |
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MACHINE_START(KUROBOX_PRO, "Buffalo/Revogear Kurobox Pro") |
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/* Maintainer: Ronen Shitrit <[email protected]> */ |
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.atag_offset = 0x100, |
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.nr_irqs = ORION5X_NR_IRQS, |
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.init_machine = kurobox_pro_init, |
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.map_io = orion5x_map_io, |
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.init_early = orion5x_init_early, |
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.init_irq = orion5x_init_irq, |
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.init_time = orion5x_timer_init, |
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.fixup = tag_fixup_mem32, |
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.restart = orion5x_restart, |
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MACHINE_END |
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#endif |
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#ifdef CONFIG_MACH_LINKSTATION_PRO |
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MACHINE_START(LINKSTATION_PRO, "Buffalo Linkstation Pro/Live") |
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/* Maintainer: Byron Bradley <[email protected]> */ |
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.atag_offset = 0x100, |
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.nr_irqs = ORION5X_NR_IRQS, |
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.init_machine = kurobox_pro_init, |
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.map_io = orion5x_map_io, |
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.init_early = orion5x_init_early, |
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.init_irq = orion5x_init_irq, |
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.init_time = orion5x_timer_init, |
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.fixup = tag_fixup_mem32, |
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.restart = orion5x_restart, |
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MACHINE_END |
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#endif
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