mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
219 lines
4 KiB
C
219 lines
4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2009
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* Marek Vasut <marek.vasut@gmail.com>
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*
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* Heavily based on pxa255_idp platform
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*/
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#include <common.h>
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#include <command.h>
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#include <serial.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/pxa.h>
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#include <asm/arch/regs-mmc.h>
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#include <spi.h>
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#include <asm/io.h>
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#include <usb.h>
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#include <asm/mach-types.h>
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DECLARE_GLOBAL_DATA_PTR;
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#ifdef CONFIG_CMD_SPI
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void lcd_start(void);
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#else
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inline void lcd_start(void) {};
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#endif
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/*
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* Miscelaneous platform dependent initialisations
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*/
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int board_init(void)
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{
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/* arch number of Z2 */
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gd->bd->bi_arch_number = MACH_TYPE_ZIPIT2;
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/* adress of boot parameters */
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gd->bd->bi_boot_params = 0xa0000100;
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/* Enable LCD */
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lcd_start();
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return 0;
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}
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int dram_init(void)
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{
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pxa2xx_dram_init();
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gd->ram_size = PHYS_SDRAM_1_SIZE;
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return 0;
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}
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#ifdef CONFIG_CMD_USB
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int board_usb_init(int index, enum usb_init_type init)
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{
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/* enable port 2 */
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writel(readl(UP2OCR) | UP2OCR_HXOE | UP2OCR_HXS |
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UP2OCR_DMPDE | UP2OCR_DPPDE, UP2OCR);
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return 0;
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}
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int board_usb_cleanup(int index, enum usb_init_type init)
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{
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return 0;
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}
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void usb_board_stop(void)
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{
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}
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#endif
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int dram_init_banksize(void)
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{
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gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
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gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
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return 0;
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}
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#ifdef CONFIG_CMD_MMC
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int board_mmc_init(bd_t *bis)
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{
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pxa_mmc_register(0);
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return 0;
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}
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#endif
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#ifdef CONFIG_CMD_SPI
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struct {
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unsigned char reg;
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unsigned short data;
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unsigned char mdelay;
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} lcd_data[] = {
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{ 0x07, 0x0000, 0 },
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{ 0x13, 0x0000, 10 },
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{ 0x11, 0x3004, 0 },
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{ 0x14, 0x200F, 0 },
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{ 0x10, 0x1a20, 0 },
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{ 0x13, 0x0040, 50 },
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{ 0x13, 0x0060, 0 },
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{ 0x13, 0x0070, 200 },
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{ 0x01, 0x0127, 0 },
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{ 0x02, 0x0700, 0 },
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{ 0x03, 0x1030, 0 },
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{ 0x08, 0x0208, 0 },
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{ 0x0B, 0x0620, 0 },
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{ 0x0C, 0x0110, 0 },
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{ 0x30, 0x0120, 0 },
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{ 0x31, 0x0127, 0 },
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{ 0x32, 0x0000, 0 },
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{ 0x33, 0x0503, 0 },
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{ 0x34, 0x0727, 0 },
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{ 0x35, 0x0124, 0 },
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{ 0x36, 0x0706, 0 },
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{ 0x37, 0x0701, 0 },
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{ 0x38, 0x0F00, 0 },
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{ 0x39, 0x0F00, 0 },
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{ 0x40, 0x0000, 0 },
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{ 0x41, 0x0000, 0 },
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{ 0x42, 0x013f, 0 },
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{ 0x43, 0x0000, 0 },
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{ 0x44, 0x013f, 0 },
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{ 0x45, 0x0000, 0 },
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{ 0x46, 0xef00, 0 },
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{ 0x47, 0x013f, 0 },
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{ 0x48, 0x0000, 0 },
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{ 0x07, 0x0015, 30 },
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{ 0x07, 0x0017, 0 },
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{ 0x20, 0x0000, 0 },
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{ 0x21, 0x0000, 0 },
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{ 0x22, 0x0000, 0 },
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};
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void zipitz2_spi_sda(int set)
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{
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/* GPIO 13 */
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if (set)
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writel((1 << 13), GPSR0);
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else
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writel((1 << 13), GPCR0);
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}
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void zipitz2_spi_scl(int set)
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{
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/* GPIO 22 */
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if (set)
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writel((1 << 22), GPCR0);
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else
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writel((1 << 22), GPSR0);
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}
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unsigned char zipitz2_spi_read(void)
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{
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/* GPIO 40 */
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return !!(readl(GPLR1) & (1 << 8));
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}
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int spi_cs_is_valid(unsigned int bus, unsigned int cs)
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{
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/* Always valid */
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return 1;
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}
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void spi_cs_activate(struct spi_slave *slave)
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{
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/* GPIO 88 low */
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writel((1 << 24), GPCR2);
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}
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void spi_cs_deactivate(struct spi_slave *slave)
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{
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/* GPIO 88 high */
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writel((1 << 24), GPSR2);
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}
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void lcd_start(void)
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{
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int i;
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unsigned char reg[3] = { 0x74, 0x00, 0 };
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unsigned char data[3] = { 0x76, 0, 0 };
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unsigned char dummy[3] = { 0, 0, 0 };
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/* PWM2 AF */
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writel(readl(GAFR0_L) | 0x00800000, GAFR0_L);
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/* Enable clock to all PWM */
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writel(readl(CKEN) | 0x3, CKEN);
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/* Configure PWM2 */
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writel(0x4f, PWM_CTRL2);
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writel(0x2ff, PWM_PWDUTY2);
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writel(792, PWM_PERVAL2);
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/* Toggle the reset pin to reset the LCD */
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writel((1 << 19), GPSR0);
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udelay(100000);
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writel((1 << 19), GPCR0);
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udelay(20000);
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writel((1 << 19), GPSR0);
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udelay(20000);
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/* Program the LCD init sequence */
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for (i = 0; i < sizeof(lcd_data) / sizeof(lcd_data[0]); i++) {
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reg[0] = 0x74;
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reg[1] = 0x0;
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reg[2] = lcd_data[i].reg;
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spi_xfer(NULL, 24, reg, dummy, SPI_XFER_BEGIN | SPI_XFER_END);
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data[0] = 0x76;
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data[1] = lcd_data[i].data >> 8;
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data[2] = lcd_data[i].data & 0xff;
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spi_xfer(NULL, 24, data, dummy, SPI_XFER_BEGIN | SPI_XFER_END);
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if (lcd_data[i].mdelay)
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udelay(lcd_data[i].mdelay * 1000);
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}
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writel((1 << 11), GPSR0);
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}
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#endif
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