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tx25: Use generic gpio_* calls 

Instead of manipulating gpio registers directly, use the calls
from the gpio library.

Signed-off-by: Vikram Narayanan <vikram186@gmail.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Cc: John Rigby <jcrigby@gmail.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Vikram Narayanan 2012-06-16 07:16:17 +00:00 committed by Anatolij Gustschin
parent 7cb714a578
commit 72739219a1
1 changed files with 9 additions and 16 deletions
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25
board/karo/tx25/tx25.c
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@ -34,14 +34,13 @@
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_FEC_MXC
#define GPIO_FEC_RESET_B MXC_GPIO_PORT_TO_NUM(4, 7)
#define GPIO_FEC_ENABLE_B MXC_GPIO_PORT_TO_NUM(4, 9)
void tx25_fec_init(void)
{
struct iomuxc_mux_ctl *muxctl;
struct iomuxc_pad_ctl *padctl;
u32 val;
u32 gpio_mux_mode = MX25_PIN_MUX_MODE(5);
struct gpio_regs *gpio4 = (struct gpio_regs *)IMX_GPIO4_BASE;
struct gpio_regs *gpio3 = (struct gpio_regs *)IMX_GPIO3_BASE;
u32 saved_rdata0_mode, saved_rdata1_mode, saved_rx_dv_mode;
debug("tx25_fec_init\n");
@ -66,18 +65,15 @@ void tx25_fec_init(void)
writel(0x0, &padctl->pad_d11);
/* drop PHY power and assert reset (low) */
val = readl(&gpio4->gpio_dr) & ~((1 << 7) | (1 << 9));
writel(val, &gpio4->gpio_dr);
val = readl(&gpio4->gpio_dir) | (1 << 7) | (1 << 9);
writel(val, &gpio4->gpio_dir);
gpio_direction_output(GPIO_FEC_RESET_B, 0);
gpio_direction_output(GPIO_FEC_ENABLE_B, 0);
mdelay(5);
debug("resetting phy\n");
/* turn on PHY power leaving reset asserted */
val = readl(&gpio4->gpio_dr) | 1 << 9;
writel(val, &gpio4->gpio_dr);
gpio_set_value(GPIO_FEC_ENABLE_B, 1);
mdelay(10);
@ -107,19 +103,16 @@ void tx25_fec_init(void)
/*
* set each to 1 and make each an output
*/
val = readl(&gpio3->gpio_dr) | (1 << 10) | (1 << 11) | (1 << 12);
writel(val, &gpio3->gpio_dr);
val = readl(&gpio3->gpio_dir) | (1 << 10) | (1 << 11) | (1 << 12);
writel(val, &gpio3->gpio_dir);
gpio_direction_output(MXC_GPIO_PORT_TO_NUM(3, 10), 1);
gpio_direction_output(MXC_GPIO_PORT_TO_NUM(3, 11), 1);
gpio_direction_output(MXC_GPIO_PORT_TO_NUM(3, 12), 1);
mdelay(22); /* this value came from RedBoot */
/*
* deassert PHY reset
*/
val = readl(&gpio4->gpio_dr) | 1 << 7;
writel(val, &gpio4->gpio_dr);
writel(val, &gpio4->gpio_dr);
gpio_set_value(GPIO_FEC_RESET_B, 1);
mdelay(5);