From 71dcc2c2b1bc20b63c52561792813ad941a8b80c Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Sat, 24 Jul 2010 03:54:19 -0400 Subject: Blackfin: unify gpio cfi implementations Signed-off-by: Mike Frysinger --- board/cm-bf537e/gpio_cfi_flash.c | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) (limited to 'board/cm-bf537e') diff --git a/board/cm-bf537e/gpio_cfi_flash.c b/board/cm-bf537e/gpio_cfi_flash.c index 79ee844..ab6af81 100644 --- a/board/cm-bf537e/gpio_cfi_flash.c +++ b/board/cm-bf537e/gpio_cfi_flash.c @@ -1,7 +1,7 @@ /* * gpio_cfi_flash.c - GPIO-assisted Flash Chip Support * - * Copyright (c) 2009 Analog Devices Inc. + * Copyright (c) 2009-2010 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ @@ -12,9 +12,17 @@ #include #include "gpio_cfi_flash.h" +/* Allow this driver to be shared among boards */ +#ifndef GPIO_PIN_1 #define GPIO_PIN_1 GPIO_PF4 +#endif #define GPIO_MASK_1 (1 << 21) -#define GPIO_MASK (GPIO_MASK_1) +#ifndef GPIO_PIN_2 +#define GPIO_MASK_2 (0) +#else +#define GPIO_MASK_2 (1 << 22) +#endif +#define GPIO_MASK (GPIO_MASK_1 | GPIO_MASK_2) void *gpio_cfi_flash_swizzle(void *vaddr) { @@ -22,11 +30,12 @@ void *gpio_cfi_flash_swizzle(void *vaddr) gpio_set_value(GPIO_PIN_1, addr & GPIO_MASK_1); -#ifdef GPIO_MASK_2 +#ifdef GPIO_PIN_2 gpio_set_value(GPIO_PIN_2, addr & GPIO_MASK_2); #endif SSYNC(); + udelay(1); return (void *)(addr & ~GPIO_MASK); } @@ -51,8 +60,9 @@ MAKE_FLASH(64, q) /* flash_write64() flash_read64() */ void gpio_cfi_flash_init(void) { gpio_request(GPIO_PIN_1, "gpio_cfi_flash"); -#ifdef GPIO_MASK_2 + gpio_direction_output(GPIO_PIN_1, 0); +#ifdef GPIO_PIN_2 gpio_request(GPIO_PIN_2, "gpio_cfi_flash"); + gpio_direction_output(GPIO_PIN_2, 0); #endif - gpio_cfi_flash_swizzle((void *)CONFIG_SYS_FLASH_BASE); } -- cgit v1.1