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Diffstat (limited to 'arch/sh/boards/overdrive/fpga.c')
-rw-r--r-- | arch/sh/boards/overdrive/fpga.c | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/arch/sh/boards/overdrive/fpga.c b/arch/sh/boards/overdrive/fpga.c deleted file mode 100644 index 956c23901228..000000000000 --- a/arch/sh/boards/overdrive/fpga.c +++ /dev/null @@ -1,133 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * This file handles programming up the Altera Flex10K that interfaces to - * the Galileo, and does the PS/2 keyboard and mouse - * - */ - - -#include <linux/kernel.h> -#include <linux/smp.h> -#include <linux/smp_lock.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/pci.h> -#include <linux/delay.h> - - -#include <asm/overdriver/gt64111.h> -#include <asm/overdrive/overdrive.h> -#include <asm/overdrive/fpga.h> - -#define FPGA_NotConfigHigh() (*FPGA_ControlReg) = (*FPGA_ControlReg) | ENABLE_FPGA_BIT -#define FPGA_NotConfigLow() (*FPGA_ControlReg) = (*FPGA_ControlReg) & RESET_FPGA_MASK - -/* I need to find out what (if any) the real delay factor here is */ -/* The delay is definately not critical */ -#define long_delay() {int i;for(i=0;i<10000;i++);} -#define short_delay() {int i;for(i=0;i<100;i++);} - -static void __init program_overdrive_fpga(const unsigned char *fpgacode, - int size) -{ - int timeout = 0; - int i, j; - unsigned char b; - static volatile unsigned char *FPGA_ControlReg = - (volatile unsigned char *) (OVERDRIVE_CTRL); - static volatile unsigned char *FPGA_ProgramReg = - (volatile unsigned char *) (FPGA_DCLK_ADDRESS); - - printk("FPGA: Commencing FPGA Programming\n"); - - /* The PCI reset but MUST be low when programming the FPGA !!! */ - b = (*FPGA_ControlReg) & RESET_PCI_MASK; - - (*FPGA_ControlReg) = b; - - /* Prepare FPGA to program */ - - FPGA_NotConfigHigh(); - long_delay(); - - FPGA_NotConfigLow(); - short_delay(); - - while ((*FPGA_ProgramReg & FPGA_NOT_STATUS) != 0) { - printk("FPGA: Waiting for NotStatus to go Low ... \n"); - } - - FPGA_NotConfigHigh(); - - /* Wait for FPGA "ready to be programmed" signal */ - printk("FPGA: Waiting for NotStatus to go high (FPGA ready)... \n"); - - for (timeout = 0; - (((*FPGA_ProgramReg & FPGA_NOT_STATUS) == 0) - && (timeout < FPGA_TIMEOUT)); timeout++); - - /* Check if timeout condition occured - i.e. an error */ - - if (timeout == FPGA_TIMEOUT) { - printk - ("FPGA: Failed to program - Timeout waiting for notSTATUS to go high\n"); - return; - } - - printk("FPGA: Copying data to FPGA ... %d bytes\n", size); - - /* Copy array to FPGA - bit at a time */ - - for (i = 0; i < size; i++) { - volatile unsigned w = 0; - - for (j = 0; j < 8; j++) { - *FPGA_ProgramReg = (fpgacode[i] >> j) & 0x01; - short_delay(); - } - if ((i & 0x3ff) == 0) { - printk("."); - } - } - - /* Waiting for CONFDONE to go high - means the program is complete */ - - for (timeout = 0; - (((*FPGA_ProgramReg & FPGA_CONFDONE) == 0) - && (timeout < FPGA_TIMEOUT)); timeout++) { - - *FPGA_ProgramReg = 0x0; - long_delay(); - } - - if (timeout == FPGA_TIMEOUT) { - printk - ("FPGA: Failed to program - Timeout waiting for CONFDONE to go high\n"); - return; - } else { /* Clock another 10 times - gets the device into a working state */ - for (i = 0; i < 10; i++) { - *FPGA_ProgramReg = 0x0; - short_delay(); - } - } - - printk("FPGA: Programming complete\n"); -} - - -static const unsigned char __init fpgacode[] = { -#include "./overdrive.ttf" /* Code from maxplus2 compiler */ - , 0, 0 -}; - - -int __init init_overdrive_fpga(void) -{ - program_overdrive_fpga(fpgacode, sizeof(fpgacode)); - - return 0; -} |