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net: stm32: add designware mac glue code for stm32

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This patch adds glue code required for enabling the designware
mac on stm32f7 devices.

Signed-off-by: Michael Kurz <michi.kurz@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Michael Kurz
2017-01-22 16:04:27 +01:00
committed by Tom Rini
parent 081de09d49
commit b20b70fcc0
7 changed files with 122 additions and 3 deletions
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56
board/st/stm32f746-disco/stm32f746-disco.c
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@@ -15,6 +15,7 @@
#include <dm/platform_data/serial_stm32x7.h>
#include <asm/arch/stm32_periph.h>
#include <asm/arch/stm32_defs.h>
#include <asm/arch/syscfg.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -276,6 +277,55 @@ U_BOOT_DEVICE(stm32x7_serials) = {
.platdata = &serial_platdata,
};
#ifdef CONFIG_ETH_DESIGNWARE
const struct stm32_gpio_ctl gpio_ctl_eth = {
.mode = STM32_GPIO_MODE_AF,
.otype = STM32_GPIO_OTYPE_PP,
.speed = STM32_GPIO_SPEED_100M,
.pupd = STM32_GPIO_PUPD_NO,
.af = STM32_GPIO_AF11
};
static const struct stm32_gpio_dsc eth_gpio[] = {
{STM32_GPIO_PORT_A, STM32_GPIO_PIN_1}, /* ETH_RMII_REF_CLK */
{STM32_GPIO_PORT_A, STM32_GPIO_PIN_2}, /* ETH_MDIO */
{STM32_GPIO_PORT_A, STM32_GPIO_PIN_7}, /* ETH_RMII_CRS_DV */
{STM32_GPIO_PORT_C, STM32_GPIO_PIN_1}, /* ETH_MDC */
{STM32_GPIO_PORT_C, STM32_GPIO_PIN_4}, /* ETH_RMII_RXD0 */
{STM32_GPIO_PORT_C, STM32_GPIO_PIN_5}, /* ETH_RMII_RXD1 */
{STM32_GPIO_PORT_G, STM32_GPIO_PIN_11}, /* ETH_RMII_TX_EN */
{STM32_GPIO_PORT_G, STM32_GPIO_PIN_13}, /* ETH_RMII_TXD0 */
{STM32_GPIO_PORT_G, STM32_GPIO_PIN_14}, /* ETH_RMII_TXD1 */
};
static int stmmac_setup(void)
{
int res = 0;
int i;
clock_setup(SYSCFG_CLOCK_CFG);
/* Set >RMII mode */
STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL;
clock_setup(GPIO_A_CLOCK_CFG);
clock_setup(GPIO_C_CLOCK_CFG);
clock_setup(GPIO_G_CLOCK_CFG);
for (i = 0; i < ARRAY_SIZE(eth_gpio); i++) {
res = stm32_gpio_config(&eth_gpio[i], &gpio_ctl_eth);
if (res)
return res;
}
clock_setup(STMMAC_CLOCK_CFG);
return 0;
}
#endif
u32 get_board_rev(void)
{
return 0;
@@ -290,6 +340,12 @@ int board_early_init_f(void)
if (res)
return res;
#ifdef CONFIG_ETH_DESIGNWARE
res = stmmac_setup();
if (res)
return res;
#endif
return 0;
}