#include <linux/kernel.h> #include <linux/pci.h> #include <linux/platform_device.h> #include <linux/mtd/physmap.h> #include <linux/spi/flash.h> #include <linux/spi/spi.h> #include <linux/spi/orion_spi.h> #include <linux/serial_reg.h> #include <mach/kirkwood.h> #include "common.h" /* * QNAP TS-x1x Boards flash */ /**************************************************************************** * 16 MiB NOR flash. The struct mtd_partition is not in the same order as the * partitions on the device because we want to keep compatability with * the QNAP firmware. * Layout as used by QNAP: * 0x00000000-0x00080000 : "U-Boot" * 0x00200000-0x00400000 : "Kernel" * 0x00400000-0x00d00000 : "RootFS" * 0x00d00000-0x01000000 : "RootFS2" * 0x00080000-0x000c0000 : "U-Boot Config" * 0x000c0000-0x00200000 : "NAS Config" * * We'll use "RootFS1" instead of "RootFS" to stay compatible with the layout * used by the QNAP TS-109/TS-209. * ***************************************************************************/ struct mtd_partition qnap_tsx1x_partitions[] = { { .name = "U-Boot", .size = 0x00080000, .offset = 0, .mask_flags = MTD_WRITEABLE, }, { .name = "Kernel", .size = 0x00200000, .offset = 0x00200000, }, { .name = "RootFS1", .size = 0x00900000, .offset = 0x00400000, }, { .name = "RootFS2", .size = 0x00300000, .offset = 0x00d00000, }, { .name = "U-Boot Config", .size = 0x00040000, .offset = 0x00080000, }, { .name = "NAS Config", .size = 0x00140000, .offset = 0x000c0000, }, }; const struct flash_platform_data qnap_tsx1x_flash = { .type = "m25p128", .name = "spi_flash", .parts = qnap_tsx1x_partitions, .nr_parts = ARRAY_SIZE(qnap_tsx1x_partitions), }; struct spi_board_info __initdata qnap_tsx1x_spi_slave_info[] = { { .modalias = "m25p80", .platform_data = &qnap_tsx1x_flash, .irq = -1, .max_speed_hz = 20000000, .bus_num = 0, .chip_select = 0, }, }; void qnap_tsx1x_register_flash(void) { spi_register_board_info(qnap_tsx1x_spi_slave_info, ARRAY_SIZE(qnap_tsx1x_spi_slave_info)); kirkwood_spi_init(); } /***************************************************************************** * QNAP TS-x1x specific power off method via UART1-attached PIC ****************************************************************************/ #define UART1_REG(x) (UART1_VIRT_BASE + ((UART_##x) << 2)) void qnap_tsx1x_power_off(void) { /* 19200 baud divisor */ const unsigned divisor = ((kirkwood_tclk + (8 * 19200)) / (16 * 19200)); pr_info("%s: triggering power-off...\n", __func__); /* hijack UART1 and reset into sane state (19200,8n1) */ writel(0x83, UART1_REG(LCR)); writel(divisor & 0xff, UART1_REG(DLL)); writel((divisor >> 8) & 0xff, UART1_REG(DLM)); writel(0x03, UART1_REG(LCR)); writel(0x00, UART1_REG(IER)); writel(0x00, UART1_REG(FCR)); writel(0x00, UART1_REG(MCR)); /* send the power-off command 'A' to PIC */ writel('A', UART1_REG(TX)); }