dc38e2ad53
Related to d3930614e6.
RCSR is only present on PXA2xx CPUs, not on PXA3xx CPUs. Therefore,
we should not be unconditionally writing to RCSR from generic code.
Since we now clear the RCSR status from the SoC specific PXA PM code
and before reset in the arch_reset() function, the duplication in
the corgi, poodle, spitz and tosa code can be removed.
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
588 lines
13 KiB
C
588 lines
13 KiB
C
/*
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* Support for Sharp SL-C7xx PDAs
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* Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky)
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*
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* Copyright (c) 2004-2005 Richard Purdie
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*
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* Based on Sharp's 2.4 kernel patches/lubbock.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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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/major.h>
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#include <linux/fs.h>
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#include <linux/interrupt.h>
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#include <linux/mmc/host.h>
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#include <linux/pm.h>
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#include <linux/backlight.h>
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#include <video/w100fb.h>
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#include <asm/setup.h>
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#include <asm/memory.h>
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#include <asm/mach-types.h>
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#include <asm/hardware.h>
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#include <asm/irq.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <asm/arch/pxa-regs.h>
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#include <asm/arch/pxa2xx-gpio.h>
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#include <asm/arch/irda.h>
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#include <asm/arch/mmc.h>
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#include <asm/arch/udc.h>
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#include <asm/arch/corgi.h>
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#include <asm/arch/sharpsl.h>
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#include <asm/mach/sharpsl_param.h>
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#include <asm/hardware/scoop.h>
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#include "generic.h"
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#include "devices.h"
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#include "sharpsl.h"
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/*
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* Corgi SCOOP Device
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*/
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static struct resource corgi_scoop_resources[] = {
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[0] = {
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.start = 0x10800000,
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.end = 0x10800fff,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct scoop_config corgi_scoop_setup = {
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.io_dir = CORGI_SCOOP_IO_DIR,
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.io_out = CORGI_SCOOP_IO_OUT,
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};
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struct platform_device corgiscoop_device = {
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.name = "sharp-scoop",
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.id = -1,
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.dev = {
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.platform_data = &corgi_scoop_setup,
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},
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.num_resources = ARRAY_SIZE(corgi_scoop_resources),
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.resource = corgi_scoop_resources,
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};
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static void corgi_pcmcia_init(void)
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{
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/* Setup default state of GPIO outputs
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before we enable them as outputs. */
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GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
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GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
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GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
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GPIO_bit(GPIO53_nPCE_2);
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pxa_gpio_mode(GPIO48_nPOE_MD);
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pxa_gpio_mode(GPIO49_nPWE_MD);
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pxa_gpio_mode(GPIO50_nPIOR_MD);
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pxa_gpio_mode(GPIO51_nPIOW_MD);
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pxa_gpio_mode(GPIO55_nPREG_MD);
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pxa_gpio_mode(GPIO56_nPWAIT_MD);
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pxa_gpio_mode(GPIO57_nIOIS16_MD);
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pxa_gpio_mode(GPIO52_nPCE_1_MD);
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pxa_gpio_mode(GPIO53_nPCE_2_MD);
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pxa_gpio_mode(GPIO54_pSKTSEL_MD);
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}
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static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
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{
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.dev = &corgiscoop_device.dev,
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.irq = CORGI_IRQ_GPIO_CF_IRQ,
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.cd_irq = CORGI_IRQ_GPIO_CF_CD,
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.cd_irq_str = "PCMCIA0 CD",
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},
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};
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static struct scoop_pcmcia_config corgi_pcmcia_config = {
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.devs = &corgi_pcmcia_scoop[0],
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.num_devs = 1,
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.pcmcia_init = corgi_pcmcia_init,
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};
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EXPORT_SYMBOL(corgiscoop_device);
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/*
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* Corgi SSP Device
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*
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* Set the parent as the scoop device because a lot of SSP devices
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* also use scoop functions and this makes the power up/down order
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* work correctly.
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*/
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struct platform_device corgissp_device = {
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.name = "corgi-ssp",
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.dev = {
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.parent = &corgiscoop_device.dev,
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},
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.id = -1,
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};
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struct corgissp_machinfo corgi_ssp_machinfo = {
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.port = 1,
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.cs_lcdcon = CORGI_GPIO_LCDCON_CS,
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.cs_ads7846 = CORGI_GPIO_ADS7846_CS,
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.cs_max1111 = CORGI_GPIO_MAX1111_CS,
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.clk_lcdcon = 76,
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.clk_ads7846 = 2,
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.clk_max1111 = 8,
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};
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/*
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* LCD/Framebuffer
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*/
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static void w100_lcdtg_suspend(struct w100fb_par *par)
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{
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corgi_lcdtg_suspend();
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}
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static void w100_lcdtg_init(struct w100fb_par *par)
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{
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corgi_lcdtg_hw_init(par->xres);
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}
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static struct w100_tg_info corgi_lcdtg_info = {
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.change = w100_lcdtg_init,
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.suspend = w100_lcdtg_suspend,
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.resume = w100_lcdtg_init,
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};
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static struct w100_mem_info corgi_fb_mem = {
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.ext_cntl = 0x00040003,
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.sdram_mode_reg = 0x00650021,
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.ext_timing_cntl = 0x10002a4a,
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.io_cntl = 0x7ff87012,
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.size = 0x1fffff,
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};
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static struct w100_gen_regs corgi_fb_regs = {
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.lcd_format = 0x00000003,
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.lcdd_cntl1 = 0x01CC0000,
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.lcdd_cntl2 = 0x0003FFFF,
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.genlcd_cntl1 = 0x00FFFF0D,
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.genlcd_cntl2 = 0x003F3003,
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.genlcd_cntl3 = 0x000102aa,
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};
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static struct w100_gpio_regs corgi_fb_gpio = {
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.init_data1 = 0x000000bf,
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.init_data2 = 0x00000000,
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.gpio_dir1 = 0x00000000,
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.gpio_oe1 = 0x03c0feff,
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.gpio_dir2 = 0x00000000,
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.gpio_oe2 = 0x00000000,
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};
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static struct w100_mode corgi_fb_modes[] = {
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{
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.xres = 480,
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.yres = 640,
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.left_margin = 0x56,
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.right_margin = 0x55,
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.upper_margin = 0x03,
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.lower_margin = 0x00,
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.crtc_ss = 0x82360056,
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.crtc_ls = 0xA0280000,
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.crtc_gs = 0x80280028,
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.crtc_vpos_gs = 0x02830002,
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.crtc_rev = 0x00400008,
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.crtc_dclk = 0xA0000000,
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.crtc_gclk = 0x8015010F,
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.crtc_goe = 0x80100110,
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.crtc_ps1_active = 0x41060010,
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.pll_freq = 75,
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.fast_pll_freq = 100,
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.sysclk_src = CLK_SRC_PLL,
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.sysclk_divider = 0,
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.pixclk_src = CLK_SRC_PLL,
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.pixclk_divider = 2,
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.pixclk_divider_rotated = 6,
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},{
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.xres = 240,
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.yres = 320,
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.left_margin = 0x27,
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.right_margin = 0x2e,
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.upper_margin = 0x01,
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.lower_margin = 0x00,
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.crtc_ss = 0x81170027,
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.crtc_ls = 0xA0140000,
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.crtc_gs = 0xC0140014,
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.crtc_vpos_gs = 0x00010141,
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.crtc_rev = 0x00400008,
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.crtc_dclk = 0xA0000000,
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.crtc_gclk = 0x8015010F,
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.crtc_goe = 0x80100110,
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.crtc_ps1_active = 0x41060010,
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.pll_freq = 0,
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.fast_pll_freq = 0,
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.sysclk_src = CLK_SRC_XTAL,
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.sysclk_divider = 0,
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.pixclk_src = CLK_SRC_XTAL,
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.pixclk_divider = 1,
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.pixclk_divider_rotated = 1,
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},
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};
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static struct w100fb_mach_info corgi_fb_info = {
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.tg = &corgi_lcdtg_info,
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.init_mode = INIT_MODE_ROTATED,
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.mem = &corgi_fb_mem,
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.regs = &corgi_fb_regs,
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.modelist = &corgi_fb_modes[0],
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.num_modes = 2,
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.gpio = &corgi_fb_gpio,
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.xtal_freq = 12500000,
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.xtal_dbl = 0,
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};
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static struct resource corgi_fb_resources[] = {
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[0] = {
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.start = 0x08000000,
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.end = 0x08ffffff,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device corgifb_device = {
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.name = "w100fb",
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.id = -1,
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.num_resources = ARRAY_SIZE(corgi_fb_resources),
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.resource = corgi_fb_resources,
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.dev = {
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.platform_data = &corgi_fb_info,
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.parent = &corgissp_device.dev,
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},
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};
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/*
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* Corgi Backlight Device
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*/
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static void corgi_bl_kick_battery(void)
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{
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void (*kick_batt)(void);
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kick_batt = symbol_get(sharpsl_battery_kick);
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if (kick_batt) {
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kick_batt();
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symbol_put(sharpsl_battery_kick);
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}
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}
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static void corgi_bl_set_intensity(int intensity)
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{
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if (intensity > 0x10)
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intensity += 0x10;
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/* Bits 0-4 are accessed via the SSP interface */
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corgi_ssp_blduty_set(intensity & 0x1f);
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/* Bit 5 is via SCOOP */
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if (intensity & 0x0020)
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set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
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else
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reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
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}
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static struct generic_bl_info corgi_bl_machinfo = {
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.name = "corgi-bl",
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.max_intensity = 0x2f,
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.default_intensity = 0x1f,
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.limit_mask = 0x0b,
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.set_bl_intensity = corgi_bl_set_intensity,
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.kick_battery = corgi_bl_kick_battery,
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};
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static struct platform_device corgibl_device = {
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.name = "generic-bl",
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.dev = {
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.parent = &corgifb_device.dev,
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.platform_data = &corgi_bl_machinfo,
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},
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.id = -1,
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};
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/*
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* Corgi Keyboard Device
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*/
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static struct platform_device corgikbd_device = {
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.name = "corgi-keyboard",
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.id = -1,
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};
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/*
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* Corgi LEDs
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*/
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static struct platform_device corgiled_device = {
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.name = "corgi-led",
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.id = -1,
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};
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/*
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* Corgi Touch Screen Device
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*/
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static unsigned long (*get_hsync_invperiod)(struct device *dev);
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static void inline sharpsl_wait_sync(int gpio)
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{
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while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
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while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
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}
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static unsigned long corgi_get_hsync_invperiod(void)
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{
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if (!get_hsync_invperiod)
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get_hsync_invperiod = symbol_get(w100fb_get_hsynclen);
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if (!get_hsync_invperiod)
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return 0;
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return get_hsync_invperiod(&corgifb_device.dev);
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}
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static void corgi_put_hsync(void)
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{
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if (get_hsync_invperiod)
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symbol_put(w100fb_get_hsynclen);
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get_hsync_invperiod = NULL;
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}
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static void corgi_wait_hsync(void)
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{
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sharpsl_wait_sync(CORGI_GPIO_HSYNC);
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}
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static struct resource corgits_resources[] = {
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[0] = {
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.start = CORGI_IRQ_GPIO_TP_INT,
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.end = CORGI_IRQ_GPIO_TP_INT,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct corgits_machinfo corgi_ts_machinfo = {
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.get_hsync_invperiod = corgi_get_hsync_invperiod,
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.put_hsync = corgi_put_hsync,
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.wait_hsync = corgi_wait_hsync,
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};
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static struct platform_device corgits_device = {
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.name = "corgi-ts",
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.dev = {
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.parent = &corgissp_device.dev,
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.platform_data = &corgi_ts_machinfo,
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},
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.id = -1,
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.num_resources = ARRAY_SIZE(corgits_resources),
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.resource = corgits_resources,
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};
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/*
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* MMC/SD Device
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*
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* The card detect interrupt isn't debounced so we delay it by 250ms
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* to give the card a chance to fully insert/eject.
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*/
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static struct pxamci_platform_data corgi_mci_platform_data;
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static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data)
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{
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int err;
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/* setup GPIO for PXA25x MMC controller */
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pxa_gpio_mode(GPIO6_MMCCLK_MD);
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pxa_gpio_mode(GPIO8_MMCCS0_MD);
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pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
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pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
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corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
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err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
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IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
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"MMC card detect", data);
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if (err)
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printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
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return err;
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}
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static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
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{
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struct pxamci_platform_data* p_d = dev->platform_data;
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if (( 1 << vdd) & p_d->ocr_mask)
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GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
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else
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GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
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}
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static int corgi_mci_get_ro(struct device *dev)
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{
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return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP);
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}
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static void corgi_mci_exit(struct device *dev, void *data)
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{
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free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
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}
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static struct pxamci_platform_data corgi_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
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.init = corgi_mci_init,
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.get_ro = corgi_mci_get_ro,
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.setpower = corgi_mci_setpower,
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.exit = corgi_mci_exit,
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};
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/*
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* Irda
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*/
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static void corgi_irda_transceiver_mode(struct device *dev, int mode)
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{
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if (mode & IR_OFF)
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GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
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else
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GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
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}
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static struct pxaficp_platform_data corgi_ficp_platform_data = {
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.transceiver_cap = IR_SIRMODE | IR_OFF,
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.transceiver_mode = corgi_irda_transceiver_mode,
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};
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/*
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* USB Device Controller
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*/
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static struct pxa2xx_udc_mach_info udc_info __initdata = {
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/* no connect GPIO; corgi can't tell connection status */
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.gpio_pullup = CORGI_GPIO_USB_PULLUP,
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};
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static struct platform_device *devices[] __initdata = {
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&corgiscoop_device,
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&corgissp_device,
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&corgifb_device,
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&corgikbd_device,
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&corgibl_device,
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&corgits_device,
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&corgiled_device,
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};
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static void corgi_poweroff(void)
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{
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if (!machine_is_corgi())
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/* Green LED off tells the bootloader to halt */
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reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
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arm_machine_restart('h');
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}
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static void corgi_restart(char mode)
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{
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if (!machine_is_corgi())
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/* Green LED on tells the bootloader to reboot */
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set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
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arm_machine_restart('h');
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}
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static void __init corgi_init(void)
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{
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pm_power_off = corgi_poweroff;
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arm_pm_restart = corgi_restart;
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/* setup sleep mode values */
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PWER = 0x00000002;
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PFER = 0x00000000;
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PRER = 0x00000002;
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PGSR0 = 0x0158C000;
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PGSR1 = 0x00FF0080;
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PGSR2 = 0x0001C004;
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/* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
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PCFR |= PCFR_OPDE;
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corgi_ssp_set_machinfo(&corgi_ssp_machinfo);
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pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT);
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pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN);
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pxa_set_udc_info(&udc_info);
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pxa_set_mci_info(&corgi_mci_platform_data);
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pxa_set_ficp_info(&corgi_ficp_platform_data);
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platform_scoop_config = &corgi_pcmcia_config;
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platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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static void __init fixup_corgi(struct machine_desc *desc,
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struct tag *tags, char **cmdline, struct meminfo *mi)
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{
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sharpsl_save_param();
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mi->nr_banks=1;
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mi->bank[0].start = 0xa0000000;
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mi->bank[0].node = 0;
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if (machine_is_corgi())
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mi->bank[0].size = (32*1024*1024);
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else
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mi->bank[0].size = (64*1024*1024);
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}
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#ifdef CONFIG_MACH_CORGI
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MACHINE_START(CORGI, "SHARP Corgi")
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.phys_io = 0x40000000,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.fixup = fixup_corgi,
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.map_io = pxa_map_io,
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.init_irq = pxa25x_init_irq,
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.init_machine = corgi_init,
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.timer = &pxa_timer,
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MACHINE_END
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#endif
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#ifdef CONFIG_MACH_SHEPHERD
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MACHINE_START(SHEPHERD, "SHARP Shepherd")
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.phys_io = 0x40000000,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.fixup = fixup_corgi,
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.map_io = pxa_map_io,
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.init_irq = pxa25x_init_irq,
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.init_machine = corgi_init,
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.timer = &pxa_timer,
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MACHINE_END
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#endif
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#ifdef CONFIG_MACH_HUSKY
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MACHINE_START(HUSKY, "SHARP Husky")
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.phys_io = 0x40000000,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.fixup = fixup_corgi,
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.map_io = pxa_map_io,
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.init_irq = pxa25x_init_irq,
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.init_machine = corgi_init,
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.timer = &pxa_timer,
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MACHINE_END
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#endif
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