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 --- Changes from v3: Use gpio_set_value instead of gpio_direction_output (Ahh. Missed it again!!. Very bad)
Changes from v2: Swap the place of the change log and commit message.
Changes from v1: Used appropriate gpio_* lib calls.
board/karo/tx25/tx25.c | 25 +++++++++---------------- 1 files changed, 9 insertions(+), 16 deletions(-)
diff --git a/board/karo/tx25/tx25.c b/board/karo/tx25/tx25.c index 2a29943..07fd98d 100644 --- a/board/karo/tx25/tx25.c +++ b/board/karo/tx25/tx25.c @@ -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);