- 根目录:
- arch
- sh
- boards
- board-magicpanelr2.c
/*
* linux/arch/sh/boards/magicpanel/setup.c
*
* Copyright (C) 2007 Markus Brunner, Mark Jonas
*
* Magic Panel Release 2 board setup
*
* 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.
*/
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/smsc911x.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/map.h>
#include <linux/sh_intc.h>
#include <mach/magicpanelr2.h>
#include <asm/heartbeat.h>
#include <cpu/sh7720.h>
/* Dummy supplies, where voltage doesn't matter */
static struct regulator_consumer_supply dummy_supplies[] = {
REGULATOR_SUPPLY("vddvario", "smsc911x"),
REGULATOR_SUPPLY("vdd33a", "smsc911x"),
};
#define LAN9115_READY (__raw_readl(0xA8000084UL) & 0x00000001UL)
/* Wait until reset finished. Timeout is 100ms. */
static int __init ethernet_reset_finished(void)
{
int i;
if (LAN9115_READY)
return 1;
for (i = 0; i < 10; ++i) {
mdelay(10);
if (LAN9115_READY)
return 1;
}
return 0;
}
static void __init reset_ethernet(void)
{
/* PMDR: LAN_RESET=on */
CLRBITS_OUTB(0x10, PORT_PMDR);
udelay(200);
/* PMDR: LAN_RESET=off */
SETBITS_OUTB(0x10, PORT_PMDR);
}
static void __init setup_chip_select(void)
{
/* CS2: LAN (0x08000000 - 0x0bffffff) */
/* no idle cycles, normal space, 8 bit data bus */
__raw_writel(0x36db0400, CS2BCR);
/* (SW:1.5 WR:3 HW:1.5), ext. wait */
__raw_writel(0x000003c0, CS2WCR);
/* CS4: CAN1 (0xb0000000 - 0xb3ffffff) */
/* no idle cycles, normal space, 8 bit data bus */
__raw_writel(0x00000200, CS4BCR);
/* (SW:1.5 WR:3 HW:1.5), ext. wait */
__raw_writel(0x00100981, CS4WCR);
/* CS5a: CAN2 (0xb4000000 - 0xb5ffffff) */
/* no idle cycles, normal space, 8 bit data bus */
__raw_writel(0x00000200, CS5ABCR);
/* (SW:1.5 WR:3 HW:1.5), ext. wait */
__raw_writel(0x00100981, CS5AWCR);
/* CS5b: CAN3 (0xb6000000 - 0xb7ffffff) */
/* no idle cycles, normal space, 8 bit data bus */
__raw_writel(0x00000200, CS5BBCR);
/* (SW:1.5 WR:3 HW:1.5), ext. wait */
__raw_writel(0x00100981, CS5BWCR);
/* CS6a: Rotary (0xb8000000 - 0xb9ffffff) */
/* no idle cycles, normal space, 8 bit data bus */
__raw_writel(0x00000200, CS6ABCR);
/* (SW:1.5 WR:3 HW:1.5), no ext. wait */
__raw_writel(0x001009C1, CS6AWCR);
}
static void __init setup_port_multiplexing(void)
{
/* A7 GPO(LED8); A6 GPO(LED7); A5 GPO(LED6); A4 GPO(LED5);
* A3 GPO(LED4); A2 GPO(LED3); A1 GPO(LED2); A0 GPO(LED1);
*/
__raw_writew(0x5555, PORT_PACR); /* 01 01 01 01 01 01 01 01 */
/* B7 GPO(RST4); B6 GPO(RST3); B5 GPO(RST2); B4 GPO(RST1);
* B3 GPO(PB3); B2 GPO(PB2); B1 GPO(PB1); B0 GPO(PB0);
*/
__raw_writew(0x5555, PORT_PBCR); /* 01 01 01 01 01 01 01 01 */
/* C7 GPO(PC7); C6 GPO(PC6); C5 GPO(PC5); C4 GPO(PC4);
* C3 LCD_DATA3; C2 LCD_DATA2; C1 LCD_DATA1; C0 LCD_DATA0;
*/
__raw_writew(0x5500, PORT_PCCR); /* 01 01 01 01 00 00 00 00 */
/* D7 GPO(PD7); D6 GPO(PD6); D5 GPO(PD5); D4 GPO(PD4);
* D3 GPO(PD3); D2 GPO(PD2); D1 GPO(PD1); D0 GPO(PD0);
*/
__raw_writew(0x5555, PORT_PDCR); /* 01 01 01 01 01 01 01 01 */
/* E7 (x); E6 GPI(nu); E5 GPI(nu); E4 LCD_M_DISP;
* E3 LCD_CL1; E2 LCD_CL2; E1 LCD_DON; E0 LCD_FLM;
*/
__raw_writew(0x3C00, PORT_PECR); /* 00 11 11 00 00 00 00 00 */
/* F7 (x); F6 DA1(VLCD); F5 DA0(nc); F4 AN3;
* F3 AN2(MID_AD); F2 AN1(EARTH_AD); F1 AN0(TEMP); F0 GPI+(nc);
*/
__raw_writew(0x0002, PORT_PFCR); /* 00 00 00 00 00 00 00 10 */
/* G7 (x); G6 IRQ5(TOUCH_BUSY); G5 IRQ4(TOUCH_IRQ); G4 GPI(KEY2);
* G3 GPI(KEY1); G2 GPO(LED11); G1 GPO(LED10); G0 GPO(LED9);
*/
__raw_writew(0x03D5, PORT_PGCR); /* 00 00 00 11 11 01 01 01 */
/* H7 (x); H6 /RAS(BRAS); H5 /CAS(BCAS); H4 CKE(BCKE);
* H3 GPO(EARTH_OFF); H2 GPO(EARTH_TEST); H1 USB2_PWR; H0 USB1_PWR;
*/
__raw_writew(0x0050, PORT_PHCR); /* 00 00 00 00 01 01 00 00 */
/* J7 (x); J6 AUDCK; J5 ASEBRKAK; J4 AUDATA3;
* J3 AUDATA2; J2 AUDATA1; J1 AUDATA0; J0 AUDSYNC;
*/
__raw_writew(0x0000, PORT_PJCR); /* 00 00 00 00 00 00 00 00 */
/* K7 (x); K6 (x); K5 (x); K4 (x);
* K3 PINT7(/PWR2); K2 PINT6(/PWR1); K1 PINT5(nu); K0 PINT4(FLASH_READY)
*/
__raw_writew(0x00FF, PORT_PKCR); /* 00 00 00 00 11 11 11 11 */
/* L7 TRST; L6 TMS; L5 TDO; L4 TDI;
* L3 TCK; L2 (x); L1 (x); L0 (x);
*/
__raw_writew(0x0000, PORT_PLCR); /* 00 00 00 00 00 00 00 00 */
/* M7 GPO(CURRENT_SINK); M6 GPO(PWR_SWITCH); M5 GPO(LAN_SPEED);
* M4 GPO(LAN_RESET); M3 GPO(BUZZER); M2 GPO(LCD_BL);
* M1 CS5B(CAN3_CS); M0 GPI+(nc);
*/
__raw_writew(0x5552, PORT_PMCR); /* 01 01 01 01 01 01 00 10 */
/* CURRENT_SINK=off, PWR_SWITCH=off, LAN_SPEED=100MBit,
* LAN_RESET=off, BUZZER=off, LCD_BL=off
*/
#if CONFIG_SH_MAGIC_PANEL_R2_VERSION == 2
__raw_writeb(0x30, PORT_PMDR);
#elif CONFIG_SH_MAGIC_PANEL_R2_VERSION == 3
__raw_writeb(0xF0, PORT_PMDR);
#else
#error Unknown revision of PLATFORM_MP_R2
#endif
/* P7 (x); P6 (x); P5 (x);
* P4 GPO(nu); P3 IRQ3(LAN_IRQ); P2 IRQ2(CAN3_IRQ);
* P1 IRQ1(CAN2_IRQ); P0 IRQ0(CAN1_IRQ)
*/
__raw_writew(0x0100, PORT_PPCR); /* 00 00 00 01 00 00 00 00 */
__raw_writeb(0x10, PORT_PPDR);
/* R7 A25; R6 A24; R5 A23; R4 A22;
* R3 A21; R2 A20; R1 A19; R0 A0;
*/
gpio_request(GPIO_FN_A25, NULL);
gpio_request(GPIO_FN_A24, NULL);
gpio_request(GPIO_FN_A23, NULL);
gpio_request(GPIO_FN_A22, NULL);
gpio_request(GPIO_FN_A21, NULL);
gpio_request(GPIO_FN_A20, NULL);
gpio_request(GPIO_FN_A19, NULL);
gpio_request(GPIO_FN_A0, NULL);
/* S7 (x); S6 (x); S5 (x); S4 GPO(EEPROM_CS2);
* S3 GPO(EEPROM_CS1); S2 SIOF0_TXD; S1 SIOF0_RXD; S0 SIOF0_SCK;
*/
__raw_writew(0x0140, PORT_PSCR); /* 00 00 00 01 01 00 00 00 */
/* T7 (x); T6 (x); T5 (x); T4 COM1_CTS;
* T3 COM1_RTS; T2 COM1_TXD; T1 COM1_RXD; T0 GPO(WDOG)
*/
__raw_writew(0x0001, PORT_PTCR); /* 00 00 00 00 00 00 00 01 */
/* U7 (x); U6 (x); U5 (x); U4 GPI+(/AC_FAULT);
* U3 GPO(TOUCH_CS); U2 TOUCH_TXD; U1 TOUCH_RXD; U0 TOUCH_SCK;
*/
__raw_writew(0x0240, PORT_PUCR); /* 00 00 00 10 01 00 00 00 */
/* V7 (x); V6 (x); V5 (x); V4 GPO(MID2);
* V3 GPO(MID1); V2 CARD_TxD; V1 CARD_RxD; V0 GPI+(/BAT_FAULT);
*/
__raw_writew(0x0142, PORT_PVCR); /* 00 00 00 01 01 00 00 10 */
}
static void __init mpr2_setup(char **cmdline_p)
{
/* set Pin Select Register A:
* /PCC_CD1, /PCC_CD2, PCC_BVD1, PCC_BVD2,
* /IOIS16, IRQ4, IRQ5, USB1d_SUSPEND
*/
__raw_writew(0xAABC, PORT_PSELA);
/* set Pin Select Register B:
* /SCIF0_RTS, /SCIF0_CTS, LCD_VCPWC,
* LCD_VEPWC, IIC_SDA, IIC_SCL, Reserved
*/
__raw_writew(0x3C00, PORT_PSELB);
/* set Pin Select Register C:
* SIOF1_SCK, SIOF1_RxD, SCIF1_RxD, SCIF1_TxD, Reserved
*/
__raw_writew(0x0000, PORT_PSELC);
/* set Pin Select Register D: Reserved, SIOF1_TxD, Reserved, SIOF1_MCLK,
* Reserved, SIOF1_SYNC, Reserved, SCIF1_SCK, Reserved
*/
__raw_writew(0x0000, PORT_PSELD);
/* set USB TxRx Control: Reserved, DRV, Reserved, USB_TRANS, USB_SEL */
__raw_writew(0x0101, PORT_UTRCTL);
/* set USB Clock Control: USSCS, USSTB, Reserved (HighByte always A5) */
__raw_writew(0xA5C0, PORT_UCLKCR_W);
setup_chip_select();
setup_port_multiplexing();
reset_ethernet();
printk(KERN_INFO "Magic Panel Release 2 A.%i\n",
CONFIG_SH_MAGIC_PANEL_R2_VERSION);
if (ethernet_reset_finished() == 0)
printk(KERN_WARNING "Ethernet not ready\n");
}
static struct resource smsc911x_resources[] = {
[0] = {
.start = 0xa8000000,
.end = 0xabffffff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0x660),
.end = evt2irq(0x660),
.flags = IORESOURCE_IRQ,
},
};
static struct smsc911x_platform_config smsc911x_config = {
.phy_interface = PHY_INTERFACE_MODE_MII,
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
.flags = SMSC911X_USE_32BIT,
};
static struct platform_device smsc911x_device = {
.name = "smsc911x",
.id = -1,
.num_resources = ARRAY_SIZE(smsc911x_resources),
.resource = smsc911x_resources,
.dev = {
.platform_data = &smsc911x_config,
},
};
static struct resource heartbeat_resources[] = {
[0] = {
.start = PA_LED,
.end = PA_LED,
.flags = IORESOURCE_MEM,
},
};
static struct heartbeat_data heartbeat_data = {
.flags = HEARTBEAT_INVERTED,
};
static struct platform_device heartbeat_device = {
.name = "heartbeat",
.id = -1,
.dev = {
.platform_data = &heartbeat_data,
},
.num_resources = ARRAY_SIZE(heartbeat_resources),
.resource = heartbeat_resources,
};
static struct mtd_partition mpr2_partitions[] = {
/* Reserved for bootloader, read-only */
{
.name = "Bootloader",
.offset = 0x00000000UL,
.size = MPR2_MTD_BOOTLOADER_SIZE,
.mask_flags = MTD_WRITEABLE,
},
/* Reserved for kernel image */
{
.name = "Kernel",
.offset = MTDPART_OFS_NXTBLK,
.size = MPR2_MTD_KERNEL_SIZE,
},
/* Rest is used for Flash FS */
{
.name = "Flash_FS",
.offset = MTDPART_OFS_NXTBLK,
.size = MTDPART_SIZ_FULL,
}
};
static struct physmap_flash_data flash_data = {
.parts = mpr2_partitions,
.nr_parts = ARRAY_SIZE(mpr2_partitions),
.width = 2,
};
static struct resource flash_resource = {
.start = 0x00000000,
.end = 0x2000000UL,
.flags = IORESOURCE_MEM,
};
static struct platform_device flash_device = {
.name = "physmap-flash",
.id = -1,
.resource = &flash_resource,
.num_resources = 1,
.dev = {
.platform_data = &flash_data,
},
};
/*
* Add all resources to the platform_device
*/
static struct platform_device *mpr2_devices[] __initdata = {
&heartbeat_device,
&smsc911x_device,
&flash_device,
};
static int __init mpr2_devices_setup(void)
{
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
return platform_add_devices(mpr2_devices, ARRAY_SIZE(mpr2_devices));
}
device_initcall(mpr2_devices_setup);
/*
* Initialize IRQ setting
*/
static void __init init_mpr2_IRQ(void)
{
plat_irq_setup_pins(IRQ_MODE_IRQ); /* install handlers for IRQ0-5 */
irq_set_irq_type(evt2irq(0x600), IRQ_TYPE_LEVEL_LOW); /* IRQ0 CAN1 */
irq_set_irq_type(evt2irq(0x620), IRQ_TYPE_LEVEL_LOW); /* IRQ1 CAN2 */
irq_set_irq_type(evt2irq(0x640), IRQ_TYPE_LEVEL_LOW); /* IRQ2 CAN3 */
irq_set_irq_type(evt2irq(0x660), IRQ_TYPE_LEVEL_LOW); /* IRQ3 SMSC9115 */
irq_set_irq_type(evt2irq(0x680), IRQ_TYPE_EDGE_RISING); /* IRQ4 touchscreen */
irq_set_irq_type(evt2irq(0x6a0), IRQ_TYPE_EDGE_FALLING); /* IRQ5 touchscreen */
intc_set_priority(evt2irq(0x600), 13); /* IRQ0 CAN1 */
intc_set_priority(evt2irq(0x620), 13); /* IRQ0 CAN2 */
intc_set_priority(evt2irq(0x640), 13); /* IRQ0 CAN3 */
intc_set_priority(evt2irq(0x660), 6); /* IRQ3 SMSC9115 */
}
/*
* The Machine Vector
*/
static struct sh_machine_vector mv_mpr2 __initmv = {
.mv_name = "mpr2",
.mv_setup = mpr2_setup,
.mv_init_irq = init_mpr2_IRQ,
};