413 lines
11 KiB
C
413 lines
11 KiB
C
/*
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* linux/arch/sh/boards/magicpanel/setup.c
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*
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* Copyright (C) 2007 Markus Brunner, Mark Jonas
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*
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* Magic Panel Release 2 board setup
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/init.h>
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <linux/smsc911x.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/mtd/map.h>
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#include <mach/magicpanelr2.h>
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#include <asm/heartbeat.h>
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#include <cpu/sh7720.h>
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#define LAN9115_READY (__raw_readl(0xA8000084UL) & 0x00000001UL)
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/* Prefer cmdline over RedBoot */
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static const char *probes[] = { "cmdlinepart", "RedBoot", NULL };
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/* Wait until reset finished. Timeout is 100ms. */
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static int __init ethernet_reset_finished(void)
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{
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int i;
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if (LAN9115_READY)
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return 1;
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for (i = 0; i < 10; ++i) {
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mdelay(10);
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if (LAN9115_READY)
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return 1;
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}
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return 0;
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}
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static void __init reset_ethernet(void)
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{
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/* PMDR: LAN_RESET=on */
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CLRBITS_OUTB(0x10, PORT_PMDR);
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udelay(200);
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/* PMDR: LAN_RESET=off */
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SETBITS_OUTB(0x10, PORT_PMDR);
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}
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static void __init setup_chip_select(void)
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{
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/* CS2: LAN (0x08000000 - 0x0bffffff) */
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/* no idle cycles, normal space, 8 bit data bus */
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__raw_writel(0x36db0400, CS2BCR);
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/* (SW:1.5 WR:3 HW:1.5), ext. wait */
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__raw_writel(0x000003c0, CS2WCR);
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/* CS4: CAN1 (0xb0000000 - 0xb3ffffff) */
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/* no idle cycles, normal space, 8 bit data bus */
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__raw_writel(0x00000200, CS4BCR);
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/* (SW:1.5 WR:3 HW:1.5), ext. wait */
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__raw_writel(0x00100981, CS4WCR);
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/* CS5a: CAN2 (0xb4000000 - 0xb5ffffff) */
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/* no idle cycles, normal space, 8 bit data bus */
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__raw_writel(0x00000200, CS5ABCR);
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/* (SW:1.5 WR:3 HW:1.5), ext. wait */
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__raw_writel(0x00100981, CS5AWCR);
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/* CS5b: CAN3 (0xb6000000 - 0xb7ffffff) */
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/* no idle cycles, normal space, 8 bit data bus */
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__raw_writel(0x00000200, CS5BBCR);
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/* (SW:1.5 WR:3 HW:1.5), ext. wait */
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__raw_writel(0x00100981, CS5BWCR);
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/* CS6a: Rotary (0xb8000000 - 0xb9ffffff) */
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/* no idle cycles, normal space, 8 bit data bus */
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__raw_writel(0x00000200, CS6ABCR);
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/* (SW:1.5 WR:3 HW:1.5), no ext. wait */
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__raw_writel(0x001009C1, CS6AWCR);
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}
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static void __init setup_port_multiplexing(void)
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{
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/* A7 GPO(LED8); A6 GPO(LED7); A5 GPO(LED6); A4 GPO(LED5);
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* A3 GPO(LED4); A2 GPO(LED3); A1 GPO(LED2); A0 GPO(LED1);
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*/
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__raw_writew(0x5555, PORT_PACR); /* 01 01 01 01 01 01 01 01 */
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/* B7 GPO(RST4); B6 GPO(RST3); B5 GPO(RST2); B4 GPO(RST1);
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* B3 GPO(PB3); B2 GPO(PB2); B1 GPO(PB1); B0 GPO(PB0);
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*/
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__raw_writew(0x5555, PORT_PBCR); /* 01 01 01 01 01 01 01 01 */
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/* C7 GPO(PC7); C6 GPO(PC6); C5 GPO(PC5); C4 GPO(PC4);
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* C3 LCD_DATA3; C2 LCD_DATA2; C1 LCD_DATA1; C0 LCD_DATA0;
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*/
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__raw_writew(0x5500, PORT_PCCR); /* 01 01 01 01 00 00 00 00 */
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/* D7 GPO(PD7); D6 GPO(PD6); D5 GPO(PD5); D4 GPO(PD4);
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* D3 GPO(PD3); D2 GPO(PD2); D1 GPO(PD1); D0 GPO(PD0);
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*/
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__raw_writew(0x5555, PORT_PDCR); /* 01 01 01 01 01 01 01 01 */
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/* E7 (x); E6 GPI(nu); E5 GPI(nu); E4 LCD_M_DISP;
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* E3 LCD_CL1; E2 LCD_CL2; E1 LCD_DON; E0 LCD_FLM;
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*/
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__raw_writew(0x3C00, PORT_PECR); /* 00 11 11 00 00 00 00 00 */
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/* F7 (x); F6 DA1(VLCD); F5 DA0(nc); F4 AN3;
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* F3 AN2(MID_AD); F2 AN1(EARTH_AD); F1 AN0(TEMP); F0 GPI+(nc);
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*/
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__raw_writew(0x0002, PORT_PFCR); /* 00 00 00 00 00 00 00 10 */
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/* G7 (x); G6 IRQ5(TOUCH_BUSY); G5 IRQ4(TOUCH_IRQ); G4 GPI(KEY2);
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* G3 GPI(KEY1); G2 GPO(LED11); G1 GPO(LED10); G0 GPO(LED9);
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*/
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__raw_writew(0x03D5, PORT_PGCR); /* 00 00 00 11 11 01 01 01 */
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/* H7 (x); H6 /RAS(BRAS); H5 /CAS(BCAS); H4 CKE(BCKE);
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* H3 GPO(EARTH_OFF); H2 GPO(EARTH_TEST); H1 USB2_PWR; H0 USB1_PWR;
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*/
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__raw_writew(0x0050, PORT_PHCR); /* 00 00 00 00 01 01 00 00 */
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/* J7 (x); J6 AUDCK; J5 ASEBRKAK; J4 AUDATA3;
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* J3 AUDATA2; J2 AUDATA1; J1 AUDATA0; J0 AUDSYNC;
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*/
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__raw_writew(0x0000, PORT_PJCR); /* 00 00 00 00 00 00 00 00 */
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/* K7 (x); K6 (x); K5 (x); K4 (x);
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* K3 PINT7(/PWR2); K2 PINT6(/PWR1); K1 PINT5(nu); K0 PINT4(FLASH_READY)
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*/
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__raw_writew(0x00FF, PORT_PKCR); /* 00 00 00 00 11 11 11 11 */
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/* L7 TRST; L6 TMS; L5 TDO; L4 TDI;
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* L3 TCK; L2 (x); L1 (x); L0 (x);
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*/
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__raw_writew(0x0000, PORT_PLCR); /* 00 00 00 00 00 00 00 00 */
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/* M7 GPO(CURRENT_SINK); M6 GPO(PWR_SWITCH); M5 GPO(LAN_SPEED);
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* M4 GPO(LAN_RESET); M3 GPO(BUZZER); M2 GPO(LCD_BL);
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* M1 CS5B(CAN3_CS); M0 GPI+(nc);
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*/
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__raw_writew(0x5552, PORT_PMCR); /* 01 01 01 01 01 01 00 10 */
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/* CURRENT_SINK=off, PWR_SWITCH=off, LAN_SPEED=100MBit,
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* LAN_RESET=off, BUZZER=off, LCD_BL=off
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*/
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#if CONFIG_SH_MAGIC_PANEL_R2_VERSION == 2
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__raw_writeb(0x30, PORT_PMDR);
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#elif CONFIG_SH_MAGIC_PANEL_R2_VERSION == 3
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__raw_writeb(0xF0, PORT_PMDR);
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#else
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#error Unknown revision of PLATFORM_MP_R2
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#endif
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/* P7 (x); P6 (x); P5 (x);
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* P4 GPO(nu); P3 IRQ3(LAN_IRQ); P2 IRQ2(CAN3_IRQ);
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* P1 IRQ1(CAN2_IRQ); P0 IRQ0(CAN1_IRQ)
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*/
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__raw_writew(0x0100, PORT_PPCR); /* 00 00 00 01 00 00 00 00 */
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__raw_writeb(0x10, PORT_PPDR);
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/* R7 A25; R6 A24; R5 A23; R4 A22;
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* R3 A21; R2 A20; R1 A19; R0 A0;
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*/
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gpio_request(GPIO_FN_A25, NULL);
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gpio_request(GPIO_FN_A24, NULL);
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gpio_request(GPIO_FN_A23, NULL);
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gpio_request(GPIO_FN_A22, NULL);
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gpio_request(GPIO_FN_A21, NULL);
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gpio_request(GPIO_FN_A20, NULL);
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gpio_request(GPIO_FN_A19, NULL);
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gpio_request(GPIO_FN_A0, NULL);
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/* S7 (x); S6 (x); S5 (x); S4 GPO(EEPROM_CS2);
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* S3 GPO(EEPROM_CS1); S2 SIOF0_TXD; S1 SIOF0_RXD; S0 SIOF0_SCK;
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*/
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__raw_writew(0x0140, PORT_PSCR); /* 00 00 00 01 01 00 00 00 */
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/* T7 (x); T6 (x); T5 (x); T4 COM1_CTS;
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* T3 COM1_RTS; T2 COM1_TXD; T1 COM1_RXD; T0 GPO(WDOG)
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*/
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__raw_writew(0x0001, PORT_PTCR); /* 00 00 00 00 00 00 00 01 */
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/* U7 (x); U6 (x); U5 (x); U4 GPI+(/AC_FAULT);
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* U3 GPO(TOUCH_CS); U2 TOUCH_TXD; U1 TOUCH_RXD; U0 TOUCH_SCK;
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*/
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__raw_writew(0x0240, PORT_PUCR); /* 00 00 00 10 01 00 00 00 */
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/* V7 (x); V6 (x); V5 (x); V4 GPO(MID2);
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* V3 GPO(MID1); V2 CARD_TxD; V1 CARD_RxD; V0 GPI+(/BAT_FAULT);
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*/
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__raw_writew(0x0142, PORT_PVCR); /* 00 00 00 01 01 00 00 10 */
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}
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static void __init mpr2_setup(char **cmdline_p)
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{
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/* set Pin Select Register A:
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* /PCC_CD1, /PCC_CD2, PCC_BVD1, PCC_BVD2,
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* /IOIS16, IRQ4, IRQ5, USB1d_SUSPEND
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*/
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__raw_writew(0xAABC, PORT_PSELA);
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/* set Pin Select Register B:
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* /SCIF0_RTS, /SCIF0_CTS, LCD_VCPWC,
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* LCD_VEPWC, IIC_SDA, IIC_SCL, Reserved
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*/
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__raw_writew(0x3C00, PORT_PSELB);
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/* set Pin Select Register C:
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* SIOF1_SCK, SIOF1_RxD, SCIF1_RxD, SCIF1_TxD, Reserved
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*/
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__raw_writew(0x0000, PORT_PSELC);
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/* set Pin Select Register D: Reserved, SIOF1_TxD, Reserved, SIOF1_MCLK,
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* Reserved, SIOF1_SYNC, Reserved, SCIF1_SCK, Reserved
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*/
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__raw_writew(0x0000, PORT_PSELD);
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/* set USB TxRx Control: Reserved, DRV, Reserved, USB_TRANS, USB_SEL */
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__raw_writew(0x0101, PORT_UTRCTL);
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/* set USB Clock Control: USSCS, USSTB, Reserved (HighByte always A5) */
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__raw_writew(0xA5C0, PORT_UCLKCR_W);
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setup_chip_select();
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setup_port_multiplexing();
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reset_ethernet();
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printk(KERN_INFO "Magic Panel Release 2 A.%i\n",
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CONFIG_SH_MAGIC_PANEL_R2_VERSION);
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if (ethernet_reset_finished() == 0)
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printk(KERN_WARNING "Ethernet not ready\n");
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}
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static struct resource smsc911x_resources[] = {
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[0] = {
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.start = 0xa8000000,
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.end = 0xabffffff,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = 35,
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.end = 35,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct smsc911x_platform_config smsc911x_config = {
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.phy_interface = PHY_INTERFACE_MODE_MII,
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
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.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
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.flags = SMSC911X_USE_32BIT,
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};
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static struct platform_device smsc911x_device = {
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.name = "smsc911x",
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.id = -1,
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.num_resources = ARRAY_SIZE(smsc911x_resources),
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.resource = smsc911x_resources,
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.dev = {
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.platform_data = &smsc911x_config,
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},
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};
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static struct resource heartbeat_resources[] = {
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[0] = {
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.start = PA_LED,
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.end = PA_LED,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct heartbeat_data heartbeat_data = {
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.flags = HEARTBEAT_INVERTED,
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};
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static struct platform_device heartbeat_device = {
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.name = "heartbeat",
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.id = -1,
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.dev = {
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.platform_data = &heartbeat_data,
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},
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.num_resources = ARRAY_SIZE(heartbeat_resources),
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.resource = heartbeat_resources,
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};
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static struct mtd_partition *parsed_partitions;
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static struct mtd_partition mpr2_partitions[] = {
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/* Reserved for bootloader, read-only */
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{
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.name = "Bootloader",
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.offset = 0x00000000UL,
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.size = MPR2_MTD_BOOTLOADER_SIZE,
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.mask_flags = MTD_WRITEABLE,
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},
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/* Reserved for kernel image */
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{
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.name = "Kernel",
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.offset = MTDPART_OFS_NXTBLK,
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.size = MPR2_MTD_KERNEL_SIZE,
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},
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/* Rest is used for Flash FS */
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{
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.name = "Flash_FS",
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.offset = MTDPART_OFS_NXTBLK,
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.size = MTDPART_SIZ_FULL,
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}
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};
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static struct physmap_flash_data flash_data = {
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.width = 2,
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};
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static struct resource flash_resource = {
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.start = 0x00000000,
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.end = 0x2000000UL,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device flash_device = {
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.name = "physmap-flash",
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.id = -1,
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.resource = &flash_resource,
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.num_resources = 1,
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.dev = {
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.platform_data = &flash_data,
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},
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};
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static struct mtd_info *flash_mtd;
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static struct map_info mpr2_flash_map = {
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.name = "Magic Panel R2 Flash",
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.size = 0x2000000UL,
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.bankwidth = 2,
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};
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static void __init set_mtd_partitions(void)
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{
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int nr_parts = 0;
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simple_map_init(&mpr2_flash_map);
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flash_mtd = do_map_probe("cfi_probe", &mpr2_flash_map);
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nr_parts = parse_mtd_partitions(flash_mtd, probes,
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&parsed_partitions, 0);
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/* If there is no partition table, used the hard coded table */
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if (nr_parts <= 0) {
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flash_data.parts = mpr2_partitions;
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flash_data.nr_parts = ARRAY_SIZE(mpr2_partitions);
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} else {
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flash_data.nr_parts = nr_parts;
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flash_data.parts = parsed_partitions;
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}
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}
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/*
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* Add all resources to the platform_device
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*/
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static struct platform_device *mpr2_devices[] __initdata = {
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&heartbeat_device,
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&smsc911x_device,
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&flash_device,
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};
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static int __init mpr2_devices_setup(void)
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{
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set_mtd_partitions();
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return platform_add_devices(mpr2_devices, ARRAY_SIZE(mpr2_devices));
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}
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device_initcall(mpr2_devices_setup);
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/*
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* Initialize IRQ setting
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*/
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static void __init init_mpr2_IRQ(void)
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{
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plat_irq_setup_pins(IRQ_MODE_IRQ); /* install handlers for IRQ0-5 */
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irq_set_irq_type(32, IRQ_TYPE_LEVEL_LOW); /* IRQ0 CAN1 */
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irq_set_irq_type(33, IRQ_TYPE_LEVEL_LOW); /* IRQ1 CAN2 */
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irq_set_irq_type(34, IRQ_TYPE_LEVEL_LOW); /* IRQ2 CAN3 */
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irq_set_irq_type(35, IRQ_TYPE_LEVEL_LOW); /* IRQ3 SMSC9115 */
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irq_set_irq_type(36, IRQ_TYPE_EDGE_RISING); /* IRQ4 touchscreen */
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irq_set_irq_type(37, IRQ_TYPE_EDGE_FALLING); /* IRQ5 touchscreen */
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intc_set_priority(32, 13); /* IRQ0 CAN1 */
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intc_set_priority(33, 13); /* IRQ0 CAN2 */
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intc_set_priority(34, 13); /* IRQ0 CAN3 */
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intc_set_priority(35, 6); /* IRQ3 SMSC9115 */
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}
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/*
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* The Machine Vector
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*/
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static struct sh_machine_vector mv_mpr2 __initmv = {
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.mv_name = "mpr2",
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.mv_setup = mpr2_setup,
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.mv_init_irq = init_mpr2_IRQ,
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};
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