diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2010-07-24 03:54:19 -0400 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2010-10-02 16:00:37 -0400 |
| commit | 71dcc2c2b1bc20b63c52561792813ad941a8b80c (patch) | |
| tree | 83088ed1359933f004cfe3c7142a3077258f8bb1 /board/cm-bf537e/gpio_cfi_flash.c | |
| parent | 6815f540db61b4c038e3ffb98b52009d11d3c1c1 (diff) | |
| download | olio-uboot-2014.01-71dcc2c2b1bc20b63c52561792813ad941a8b80c.tar.xz olio-uboot-2014.01-71dcc2c2b1bc20b63c52561792813ad941a8b80c.zip | |
Blackfin: unify gpio cfi implementations
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'board/cm-bf537e/gpio_cfi_flash.c')
| -rw-r--r-- | board/cm-bf537e/gpio_cfi_flash.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/board/cm-bf537e/gpio_cfi_flash.c b/board/cm-bf537e/gpio_cfi_flash.c index 79ee84413..ab6af81ea 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 <asm/io.h> #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); } |