4574b88669
Remove now redundant tclk from SPI platform data. This makes the platform data empty, so remove it. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Jamie Lentin <jm@lentin.co.uk> Signed-off-by: Mike Turquette <mturquette@linaro.org>
112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
#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/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 compatibility 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 __init 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));
|
|
}
|
|
|