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https://xff.cz/git/u-boot/
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482e585bdf
Allow setting the i2s pinmux correctly on exyno5420 so that i2c can be used on that SoC. Also rename EXYNOS_AUDSS to something consistent with other naming. Signed-off-by: Simon Glass <sjg@chromium.org>
938 lines
22 KiB
C
938 lines
22 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2012 Samsung Electronics.
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* Abhilash Kesavan <a.kesavan@samsung.com>
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*/
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#include <common.h>
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#include <fdtdec.h>
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#include <asm/gpio.h>
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#include <asm/arch/pinmux.h>
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#include <asm/arch/sromc.h>
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static void exynos5_uart_config(int peripheral)
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{
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int i, start, count;
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switch (peripheral) {
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case PERIPH_ID_UART0:
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start = EXYNOS5_GPIO_A00;
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count = 4;
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break;
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case PERIPH_ID_UART1:
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start = EXYNOS5_GPIO_D00;
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count = 4;
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break;
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case PERIPH_ID_UART2:
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start = EXYNOS5_GPIO_A10;
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count = 4;
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break;
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case PERIPH_ID_UART3:
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start = EXYNOS5_GPIO_A14;
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count = 2;
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break;
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default:
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debug("%s: invalid peripheral %d", __func__, peripheral);
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return;
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}
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for (i = start; i < start + count; i++) {
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gpio_set_pull(i, S5P_GPIO_PULL_NONE);
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gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
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}
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}
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static void exynos5420_uart_config(int peripheral)
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{
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int i, start, count;
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switch (peripheral) {
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case PERIPH_ID_UART0:
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start = EXYNOS5420_GPIO_A00;
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count = 4;
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break;
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case PERIPH_ID_UART1:
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start = EXYNOS5420_GPIO_A04;
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count = 4;
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break;
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case PERIPH_ID_UART2:
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start = EXYNOS5420_GPIO_A10;
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count = 4;
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break;
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case PERIPH_ID_UART3:
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start = EXYNOS5420_GPIO_A14;
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count = 2;
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break;
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default:
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debug("%s: invalid peripheral %d", __func__, peripheral);
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return;
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}
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for (i = start; i < start + count; i++) {
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gpio_set_pull(i, S5P_GPIO_PULL_NONE);
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gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
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}
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}
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static int exynos5_mmc_config(int peripheral, int flags)
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{
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int i, start, start_ext, gpio_func = 0;
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switch (peripheral) {
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case PERIPH_ID_SDMMC0:
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start = EXYNOS5_GPIO_C00;
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start_ext = EXYNOS5_GPIO_C10;
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gpio_func = S5P_GPIO_FUNC(0x2);
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break;
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case PERIPH_ID_SDMMC1:
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start = EXYNOS5_GPIO_C20;
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start_ext = 0;
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break;
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case PERIPH_ID_SDMMC2:
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start = EXYNOS5_GPIO_C30;
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start_ext = EXYNOS5_GPIO_C43;
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gpio_func = S5P_GPIO_FUNC(0x3);
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break;
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case PERIPH_ID_SDMMC3:
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start = EXYNOS5_GPIO_C40;
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start_ext = 0;
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break;
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default:
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debug("%s: invalid peripheral %d", __func__, peripheral);
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return -1;
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}
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if ((flags & PINMUX_FLAG_8BIT_MODE) && !start_ext) {
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debug("SDMMC device %d does not support 8bit mode",
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peripheral);
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return -1;
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}
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if (flags & PINMUX_FLAG_8BIT_MODE) {
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for (i = start_ext; i <= (start_ext + 3); i++) {
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gpio_cfg_pin(i, gpio_func);
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gpio_set_pull(i, S5P_GPIO_PULL_UP);
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gpio_set_drv(i, S5P_GPIO_DRV_4X);
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}
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}
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for (i = start; i < (start + 2); i++) {
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gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
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gpio_set_pull(i, S5P_GPIO_PULL_NONE);
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gpio_set_drv(i, S5P_GPIO_DRV_4X);
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}
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for (i = (start + 3); i <= (start + 6); i++) {
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gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
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gpio_set_pull(i, S5P_GPIO_PULL_UP);
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gpio_set_drv(i, S5P_GPIO_DRV_4X);
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}
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return 0;
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}
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static int exynos5420_mmc_config(int peripheral, int flags)
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{
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int i, start = 0, start_ext = 0;
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switch (peripheral) {
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case PERIPH_ID_SDMMC0:
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start = EXYNOS5420_GPIO_C00;
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start_ext = EXYNOS5420_GPIO_C30;
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break;
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case PERIPH_ID_SDMMC1:
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start = EXYNOS5420_GPIO_C10;
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start_ext = EXYNOS5420_GPIO_D14;
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break;
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case PERIPH_ID_SDMMC2:
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start = EXYNOS5420_GPIO_C20;
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start_ext = 0;
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break;
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default:
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start = 0;
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debug("%s: invalid peripheral %d", __func__, peripheral);
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return -1;
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}
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if ((flags & PINMUX_FLAG_8BIT_MODE) && !start_ext) {
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debug("SDMMC device %d does not support 8bit mode",
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peripheral);
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return -1;
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}
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if (flags & PINMUX_FLAG_8BIT_MODE) {
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for (i = start_ext; i <= (start_ext + 3); i++) {
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gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
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gpio_set_pull(i, S5P_GPIO_PULL_UP);
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gpio_set_drv(i, S5P_GPIO_DRV_4X);
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}
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}
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for (i = start; i < (start + 3); i++) {
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/*
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* MMC0 is intended to be used for eMMC. The
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* card detect pin is used as a VDDEN signal to
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* power on the eMMC. The 5420 iROM makes
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* this same assumption.
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*/
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if ((peripheral == PERIPH_ID_SDMMC0) && (i == (start + 2))) {
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#ifndef CONFIG_SPL_BUILD
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gpio_request(i, "sdmmc0_vdden");
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#endif
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gpio_set_value(i, 1);
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gpio_cfg_pin(i, S5P_GPIO_OUTPUT);
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} else {
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gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
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}
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gpio_set_pull(i, S5P_GPIO_PULL_NONE);
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gpio_set_drv(i, S5P_GPIO_DRV_4X);
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}
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for (i = (start + 3); i <= (start + 6); i++) {
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gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
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gpio_set_pull(i, S5P_GPIO_PULL_UP);
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gpio_set_drv(i, S5P_GPIO_DRV_4X);
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}
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return 0;
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}
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static void exynos5_sromc_config(int flags)
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{
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int i;
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/*
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* SROM:CS1 and EBI
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*
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* GPY0[0] SROM_CSn[0]
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* GPY0[1] SROM_CSn[1](2)
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* GPY0[2] SROM_CSn[2]
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* GPY0[3] SROM_CSn[3]
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* GPY0[4] EBI_OEn(2)
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* GPY0[5] EBI_EEn(2)
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*
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* GPY1[0] EBI_BEn[0](2)
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* GPY1[1] EBI_BEn[1](2)
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* GPY1[2] SROM_WAIT(2)
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* GPY1[3] EBI_DATA_RDn(2)
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*/
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gpio_cfg_pin(EXYNOS5_GPIO_Y00 + (flags & PINMUX_FLAG_BANK),
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S5P_GPIO_FUNC(2));
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gpio_cfg_pin(EXYNOS5_GPIO_Y04, S5P_GPIO_FUNC(2));
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gpio_cfg_pin(EXYNOS5_GPIO_Y05, S5P_GPIO_FUNC(2));
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for (i = 0; i < 4; i++)
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gpio_cfg_pin(EXYNOS5_GPIO_Y10 + i, S5P_GPIO_FUNC(2));
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/*
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* EBI: 8 Addrss Lines
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*
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* GPY3[0] EBI_ADDR[0](2)
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* GPY3[1] EBI_ADDR[1](2)
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* GPY3[2] EBI_ADDR[2](2)
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* GPY3[3] EBI_ADDR[3](2)
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* GPY3[4] EBI_ADDR[4](2)
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* GPY3[5] EBI_ADDR[5](2)
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* GPY3[6] EBI_ADDR[6](2)
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* GPY3[7] EBI_ADDR[7](2)
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*
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* EBI: 16 Data Lines
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*
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* GPY5[0] EBI_DATA[0](2)
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* GPY5[1] EBI_DATA[1](2)
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* GPY5[2] EBI_DATA[2](2)
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* GPY5[3] EBI_DATA[3](2)
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* GPY5[4] EBI_DATA[4](2)
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* GPY5[5] EBI_DATA[5](2)
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* GPY5[6] EBI_DATA[6](2)
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* GPY5[7] EBI_DATA[7](2)
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*
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* GPY6[0] EBI_DATA[8](2)
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* GPY6[1] EBI_DATA[9](2)
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* GPY6[2] EBI_DATA[10](2)
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* GPY6[3] EBI_DATA[11](2)
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* GPY6[4] EBI_DATA[12](2)
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* GPY6[5] EBI_DATA[13](2)
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* GPY6[6] EBI_DATA[14](2)
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* GPY6[7] EBI_DATA[15](2)
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*/
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for (i = 0; i < 8; i++) {
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gpio_cfg_pin(EXYNOS5_GPIO_Y30 + i, S5P_GPIO_FUNC(2));
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gpio_set_pull(EXYNOS5_GPIO_Y30 + i, S5P_GPIO_PULL_UP);
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gpio_cfg_pin(EXYNOS5_GPIO_Y50 + i, S5P_GPIO_FUNC(2));
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gpio_set_pull(EXYNOS5_GPIO_Y50 + i, S5P_GPIO_PULL_UP);
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gpio_cfg_pin(EXYNOS5_GPIO_Y60 + i, S5P_GPIO_FUNC(2));
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gpio_set_pull(EXYNOS5_GPIO_Y60 + i, S5P_GPIO_PULL_UP);
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}
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}
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static void exynos5_i2c_config(int peripheral, int flags)
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{
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int func01, func23;
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/* High-Speed I2C */
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if (flags & PINMUX_FLAG_HS_MODE) {
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func01 = 4;
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func23 = 4;
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} else {
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func01 = 2;
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func23 = 3;
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}
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switch (peripheral) {
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case PERIPH_ID_I2C0:
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gpio_cfg_pin(EXYNOS5_GPIO_B30, S5P_GPIO_FUNC(func01));
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gpio_cfg_pin(EXYNOS5_GPIO_B31, S5P_GPIO_FUNC(func01));
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break;
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case PERIPH_ID_I2C1:
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gpio_cfg_pin(EXYNOS5_GPIO_B32, S5P_GPIO_FUNC(func01));
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gpio_cfg_pin(EXYNOS5_GPIO_B33, S5P_GPIO_FUNC(func01));
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break;
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case PERIPH_ID_I2C2:
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gpio_cfg_pin(EXYNOS5_GPIO_A06, S5P_GPIO_FUNC(func23));
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gpio_cfg_pin(EXYNOS5_GPIO_A07, S5P_GPIO_FUNC(func23));
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break;
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case PERIPH_ID_I2C3:
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gpio_cfg_pin(EXYNOS5_GPIO_A12, S5P_GPIO_FUNC(func23));
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gpio_cfg_pin(EXYNOS5_GPIO_A13, S5P_GPIO_FUNC(func23));
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break;
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case PERIPH_ID_I2C4:
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gpio_cfg_pin(EXYNOS5_GPIO_A20, S5P_GPIO_FUNC(0x3));
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gpio_cfg_pin(EXYNOS5_GPIO_A21, S5P_GPIO_FUNC(0x3));
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break;
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case PERIPH_ID_I2C5:
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gpio_cfg_pin(EXYNOS5_GPIO_A22, S5P_GPIO_FUNC(0x3));
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gpio_cfg_pin(EXYNOS5_GPIO_A23, S5P_GPIO_FUNC(0x3));
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break;
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case PERIPH_ID_I2C6:
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gpio_cfg_pin(EXYNOS5_GPIO_B13, S5P_GPIO_FUNC(0x4));
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gpio_cfg_pin(EXYNOS5_GPIO_B14, S5P_GPIO_FUNC(0x4));
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break;
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case PERIPH_ID_I2C7:
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gpio_cfg_pin(EXYNOS5_GPIO_B22, S5P_GPIO_FUNC(0x3));
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gpio_cfg_pin(EXYNOS5_GPIO_B23, S5P_GPIO_FUNC(0x3));
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break;
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}
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}
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static void exynos5420_i2c_config(int peripheral)
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{
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switch (peripheral) {
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case PERIPH_ID_I2C0:
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gpio_cfg_pin(EXYNOS5420_GPIO_B30, S5P_GPIO_FUNC(0x2));
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gpio_cfg_pin(EXYNOS5420_GPIO_B31, S5P_GPIO_FUNC(0x2));
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break;
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case PERIPH_ID_I2C1:
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gpio_cfg_pin(EXYNOS5420_GPIO_B32, S5P_GPIO_FUNC(0x2));
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gpio_cfg_pin(EXYNOS5420_GPIO_B33, S5P_GPIO_FUNC(0x2));
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break;
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case PERIPH_ID_I2C2:
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gpio_cfg_pin(EXYNOS5420_GPIO_A06, S5P_GPIO_FUNC(0x3));
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gpio_cfg_pin(EXYNOS5420_GPIO_A07, S5P_GPIO_FUNC(0x3));
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break;
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case PERIPH_ID_I2C3:
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gpio_cfg_pin(EXYNOS5420_GPIO_A12, S5P_GPIO_FUNC(0x3));
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gpio_cfg_pin(EXYNOS5420_GPIO_A13, S5P_GPIO_FUNC(0x3));
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break;
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case PERIPH_ID_I2C4:
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gpio_cfg_pin(EXYNOS5420_GPIO_A20, S5P_GPIO_FUNC(0x3));
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gpio_cfg_pin(EXYNOS5420_GPIO_A21, S5P_GPIO_FUNC(0x3));
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break;
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case PERIPH_ID_I2C5:
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gpio_cfg_pin(EXYNOS5420_GPIO_A22, S5P_GPIO_FUNC(0x3));
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gpio_cfg_pin(EXYNOS5420_GPIO_A23, S5P_GPIO_FUNC(0x3));
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break;
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case PERIPH_ID_I2C6:
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gpio_cfg_pin(EXYNOS5420_GPIO_B13, S5P_GPIO_FUNC(0x4));
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gpio_cfg_pin(EXYNOS5420_GPIO_B14, S5P_GPIO_FUNC(0x4));
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break;
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case PERIPH_ID_I2C7:
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gpio_cfg_pin(EXYNOS5420_GPIO_B22, S5P_GPIO_FUNC(0x3));
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gpio_cfg_pin(EXYNOS5420_GPIO_B23, S5P_GPIO_FUNC(0x3));
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break;
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case PERIPH_ID_I2C8:
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gpio_cfg_pin(EXYNOS5420_GPIO_B34, S5P_GPIO_FUNC(0x2));
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gpio_cfg_pin(EXYNOS5420_GPIO_B35, S5P_GPIO_FUNC(0x2));
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break;
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case PERIPH_ID_I2C9:
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gpio_cfg_pin(EXYNOS5420_GPIO_B36, S5P_GPIO_FUNC(0x2));
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gpio_cfg_pin(EXYNOS5420_GPIO_B37, S5P_GPIO_FUNC(0x2));
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break;
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case PERIPH_ID_I2C10:
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gpio_cfg_pin(EXYNOS5420_GPIO_B40, S5P_GPIO_FUNC(0x2));
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gpio_cfg_pin(EXYNOS5420_GPIO_B41, S5P_GPIO_FUNC(0x2));
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break;
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}
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}
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static void exynos5_i2s_config(int peripheral)
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{
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int i;
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switch (peripheral) {
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case PERIPH_ID_I2S0:
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for (i = 0; i < 5; i++)
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gpio_cfg_pin(EXYNOS5_GPIO_Z0 + i, S5P_GPIO_FUNC(0x02));
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break;
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case PERIPH_ID_I2S1:
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for (i = 0; i < 5; i++)
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gpio_cfg_pin(EXYNOS5_GPIO_B00 + i, S5P_GPIO_FUNC(0x02));
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break;
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}
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}
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static void exynos5420_i2s_config(int peripheral)
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{
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int i;
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switch (peripheral) {
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case PERIPH_ID_I2S0:
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for (i = 0; i < 5; i++)
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gpio_cfg_pin(EXYNOS5420_GPIO_Z0 + i,
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S5P_GPIO_FUNC(0x02));
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break;
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}
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}
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void exynos5_spi_config(int peripheral)
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{
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int cfg = 0, pin = 0, i;
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switch (peripheral) {
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case PERIPH_ID_SPI0:
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cfg = S5P_GPIO_FUNC(0x2);
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pin = EXYNOS5_GPIO_A20;
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break;
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case PERIPH_ID_SPI1:
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cfg = S5P_GPIO_FUNC(0x2);
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pin = EXYNOS5_GPIO_A24;
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break;
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case PERIPH_ID_SPI2:
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cfg = S5P_GPIO_FUNC(0x5);
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pin = EXYNOS5_GPIO_B11;
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break;
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case PERIPH_ID_SPI3:
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cfg = S5P_GPIO_FUNC(0x2);
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pin = EXYNOS5_GPIO_F10;
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break;
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case PERIPH_ID_SPI4:
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for (i = 0; i < 2; i++) {
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gpio_cfg_pin(EXYNOS5_GPIO_F02 + i, S5P_GPIO_FUNC(0x4));
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gpio_cfg_pin(EXYNOS5_GPIO_E04 + i, S5P_GPIO_FUNC(0x4));
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}
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break;
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}
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if (peripheral != PERIPH_ID_SPI4) {
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for (i = pin; i < pin + 4; i++)
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gpio_cfg_pin(i, cfg);
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}
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}
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void exynos5420_spi_config(int peripheral)
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{
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int cfg, pin, i;
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switch (peripheral) {
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case PERIPH_ID_SPI0:
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pin = EXYNOS5420_GPIO_A20;
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cfg = S5P_GPIO_FUNC(0x2);
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break;
|
|
case PERIPH_ID_SPI1:
|
|
pin = EXYNOS5420_GPIO_A24;
|
|
cfg = S5P_GPIO_FUNC(0x2);
|
|
break;
|
|
case PERIPH_ID_SPI2:
|
|
pin = EXYNOS5420_GPIO_B11;
|
|
cfg = S5P_GPIO_FUNC(0x5);
|
|
break;
|
|
case PERIPH_ID_SPI3:
|
|
pin = EXYNOS5420_GPIO_F10;
|
|
cfg = S5P_GPIO_FUNC(0x2);
|
|
break;
|
|
case PERIPH_ID_SPI4:
|
|
cfg = 0;
|
|
pin = 0;
|
|
break;
|
|
default:
|
|
cfg = 0;
|
|
pin = 0;
|
|
debug("%s: invalid peripheral %d", __func__, peripheral);
|
|
return;
|
|
}
|
|
|
|
if (peripheral != PERIPH_ID_SPI4) {
|
|
for (i = pin; i < pin + 4; i++)
|
|
gpio_cfg_pin(i, cfg);
|
|
} else {
|
|
for (i = 0; i < 2; i++) {
|
|
gpio_cfg_pin(EXYNOS5420_GPIO_F02 + i,
|
|
S5P_GPIO_FUNC(0x4));
|
|
gpio_cfg_pin(EXYNOS5420_GPIO_E04 + i,
|
|
S5P_GPIO_FUNC(0x4));
|
|
}
|
|
}
|
|
}
|
|
|
|
static int exynos5_pinmux_config(int peripheral, int flags)
|
|
{
|
|
switch (peripheral) {
|
|
case PERIPH_ID_UART0:
|
|
case PERIPH_ID_UART1:
|
|
case PERIPH_ID_UART2:
|
|
case PERIPH_ID_UART3:
|
|
exynos5_uart_config(peripheral);
|
|
break;
|
|
case PERIPH_ID_SDMMC0:
|
|
case PERIPH_ID_SDMMC1:
|
|
case PERIPH_ID_SDMMC2:
|
|
case PERIPH_ID_SDMMC3:
|
|
return exynos5_mmc_config(peripheral, flags);
|
|
case PERIPH_ID_SROMC:
|
|
exynos5_sromc_config(flags);
|
|
break;
|
|
case PERIPH_ID_I2C0:
|
|
case PERIPH_ID_I2C1:
|
|
case PERIPH_ID_I2C2:
|
|
case PERIPH_ID_I2C3:
|
|
case PERIPH_ID_I2C4:
|
|
case PERIPH_ID_I2C5:
|
|
case PERIPH_ID_I2C6:
|
|
case PERIPH_ID_I2C7:
|
|
exynos5_i2c_config(peripheral, flags);
|
|
break;
|
|
case PERIPH_ID_I2S0:
|
|
case PERIPH_ID_I2S1:
|
|
exynos5_i2s_config(peripheral);
|
|
break;
|
|
case PERIPH_ID_SPI0:
|
|
case PERIPH_ID_SPI1:
|
|
case PERIPH_ID_SPI2:
|
|
case PERIPH_ID_SPI3:
|
|
case PERIPH_ID_SPI4:
|
|
exynos5_spi_config(peripheral);
|
|
break;
|
|
case PERIPH_ID_DPHPD:
|
|
/* Set Hotplug detect for DP */
|
|
gpio_cfg_pin(EXYNOS5_GPIO_X07, S5P_GPIO_FUNC(0x3));
|
|
|
|
/*
|
|
* Hotplug detect should have an external pullup; disable the
|
|
* internal pulldown so they don't fight.
|
|
*/
|
|
gpio_set_pull(EXYNOS5_GPIO_X07, S5P_GPIO_PULL_NONE);
|
|
break;
|
|
case PERIPH_ID_PWM0:
|
|
gpio_cfg_pin(EXYNOS5_GPIO_B20, S5P_GPIO_FUNC(2));
|
|
break;
|
|
default:
|
|
debug("%s: invalid peripheral %d", __func__, peripheral);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int exynos5420_pinmux_config(int peripheral, int flags)
|
|
{
|
|
switch (peripheral) {
|
|
case PERIPH_ID_UART0:
|
|
case PERIPH_ID_UART1:
|
|
case PERIPH_ID_UART2:
|
|
case PERIPH_ID_UART3:
|
|
exynos5420_uart_config(peripheral);
|
|
break;
|
|
case PERIPH_ID_SDMMC0:
|
|
case PERIPH_ID_SDMMC1:
|
|
case PERIPH_ID_SDMMC2:
|
|
case PERIPH_ID_SDMMC3:
|
|
return exynos5420_mmc_config(peripheral, flags);
|
|
case PERIPH_ID_SPI0:
|
|
case PERIPH_ID_SPI1:
|
|
case PERIPH_ID_SPI2:
|
|
case PERIPH_ID_SPI3:
|
|
case PERIPH_ID_SPI4:
|
|
exynos5420_spi_config(peripheral);
|
|
break;
|
|
case PERIPH_ID_I2C0:
|
|
case PERIPH_ID_I2C1:
|
|
case PERIPH_ID_I2C2:
|
|
case PERIPH_ID_I2C3:
|
|
case PERIPH_ID_I2C4:
|
|
case PERIPH_ID_I2C5:
|
|
case PERIPH_ID_I2C6:
|
|
case PERIPH_ID_I2C7:
|
|
case PERIPH_ID_I2C8:
|
|
case PERIPH_ID_I2C9:
|
|
case PERIPH_ID_I2C10:
|
|
exynos5420_i2c_config(peripheral);
|
|
break;
|
|
case PERIPH_ID_I2S0:
|
|
exynos5420_i2s_config(peripheral);
|
|
break;
|
|
case PERIPH_ID_PWM0:
|
|
gpio_cfg_pin(EXYNOS5420_GPIO_B20, S5P_GPIO_FUNC(2));
|
|
break;
|
|
default:
|
|
debug("%s: invalid peripheral %d", __func__, peripheral);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void exynos4_i2c_config(int peripheral, int flags)
|
|
{
|
|
switch (peripheral) {
|
|
case PERIPH_ID_I2C0:
|
|
gpio_cfg_pin(EXYNOS4_GPIO_D10, S5P_GPIO_FUNC(0x2));
|
|
gpio_cfg_pin(EXYNOS4_GPIO_D11, S5P_GPIO_FUNC(0x2));
|
|
break;
|
|
case PERIPH_ID_I2C1:
|
|
gpio_cfg_pin(EXYNOS4_GPIO_D12, S5P_GPIO_FUNC(0x2));
|
|
gpio_cfg_pin(EXYNOS4_GPIO_D13, S5P_GPIO_FUNC(0x2));
|
|
break;
|
|
case PERIPH_ID_I2C2:
|
|
gpio_cfg_pin(EXYNOS4_GPIO_A06, S5P_GPIO_FUNC(0x3));
|
|
gpio_cfg_pin(EXYNOS4_GPIO_A07, S5P_GPIO_FUNC(0x3));
|
|
break;
|
|
case PERIPH_ID_I2C3:
|
|
gpio_cfg_pin(EXYNOS4_GPIO_A12, S5P_GPIO_FUNC(0x3));
|
|
gpio_cfg_pin(EXYNOS4_GPIO_A13, S5P_GPIO_FUNC(0x3));
|
|
break;
|
|
case PERIPH_ID_I2C4:
|
|
gpio_cfg_pin(EXYNOS4_GPIO_B2, S5P_GPIO_FUNC(0x3));
|
|
gpio_cfg_pin(EXYNOS4_GPIO_B3, S5P_GPIO_FUNC(0x3));
|
|
break;
|
|
case PERIPH_ID_I2C5:
|
|
gpio_cfg_pin(EXYNOS4_GPIO_B6, S5P_GPIO_FUNC(0x3));
|
|
gpio_cfg_pin(EXYNOS4_GPIO_B7, S5P_GPIO_FUNC(0x3));
|
|
break;
|
|
case PERIPH_ID_I2C6:
|
|
gpio_cfg_pin(EXYNOS4_GPIO_C13, S5P_GPIO_FUNC(0x4));
|
|
gpio_cfg_pin(EXYNOS4_GPIO_C14, S5P_GPIO_FUNC(0x4));
|
|
break;
|
|
case PERIPH_ID_I2C7:
|
|
gpio_cfg_pin(EXYNOS4_GPIO_D02, S5P_GPIO_FUNC(0x3));
|
|
gpio_cfg_pin(EXYNOS4_GPIO_D03, S5P_GPIO_FUNC(0x3));
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int exynos4_mmc_config(int peripheral, int flags)
|
|
{
|
|
int i, start = 0, start_ext = 0;
|
|
unsigned int func, ext_func;
|
|
|
|
switch (peripheral) {
|
|
case PERIPH_ID_SDMMC0:
|
|
start = EXYNOS4_GPIO_K00;
|
|
start_ext = EXYNOS4_GPIO_K13;
|
|
func = S5P_GPIO_FUNC(0x2);
|
|
ext_func = S5P_GPIO_FUNC(0x3);
|
|
break;
|
|
case PERIPH_ID_SDMMC2:
|
|
start = EXYNOS4_GPIO_K20;
|
|
start_ext = EXYNOS4_GPIO_K33;
|
|
func = S5P_GPIO_FUNC(0x2);
|
|
ext_func = S5P_GPIO_FUNC(0x3);
|
|
break;
|
|
case PERIPH_ID_SDMMC4:
|
|
start = EXYNOS4_GPIO_K00;
|
|
start_ext = EXYNOS4_GPIO_K13;
|
|
func = S5P_GPIO_FUNC(0x3);
|
|
ext_func = S5P_GPIO_FUNC(0x4);
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
for (i = start; i < (start + 7); i++) {
|
|
if (i == (start + 2))
|
|
continue;
|
|
gpio_cfg_pin(i, func);
|
|
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
|
|
gpio_set_drv(i, S5P_GPIO_DRV_4X);
|
|
}
|
|
/* SDMMC2 do not use 8bit mode at exynos4 */
|
|
if (flags & PINMUX_FLAG_8BIT_MODE) {
|
|
for (i = start_ext; i < (start_ext + 4); i++) {
|
|
gpio_cfg_pin(i, ext_func);
|
|
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
|
|
gpio_set_drv(i, S5P_GPIO_DRV_4X);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void exynos4_uart_config(int peripheral)
|
|
{
|
|
int i, start, count;
|
|
|
|
switch (peripheral) {
|
|
case PERIPH_ID_UART0:
|
|
start = EXYNOS4_GPIO_A00;
|
|
count = 4;
|
|
break;
|
|
case PERIPH_ID_UART1:
|
|
start = EXYNOS4_GPIO_A04;
|
|
count = 4;
|
|
break;
|
|
case PERIPH_ID_UART2:
|
|
start = EXYNOS4_GPIO_A10;
|
|
count = 4;
|
|
break;
|
|
case PERIPH_ID_UART3:
|
|
start = EXYNOS4_GPIO_A14;
|
|
count = 2;
|
|
break;
|
|
default:
|
|
debug("%s: invalid peripheral %d", __func__, peripheral);
|
|
return;
|
|
}
|
|
for (i = start; i < (start + count); i++) {
|
|
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
|
|
gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
|
|
}
|
|
}
|
|
|
|
static void exynos4x12_i2c_config(int peripheral, int flags)
|
|
{
|
|
switch (peripheral) {
|
|
case PERIPH_ID_I2C0:
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_D10, S5P_GPIO_FUNC(0x2));
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_D11, S5P_GPIO_FUNC(0x2));
|
|
break;
|
|
case PERIPH_ID_I2C1:
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_D12, S5P_GPIO_FUNC(0x2));
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_D13, S5P_GPIO_FUNC(0x2));
|
|
break;
|
|
case PERIPH_ID_I2C2:
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_A06, S5P_GPIO_FUNC(0x3));
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_A07, S5P_GPIO_FUNC(0x3));
|
|
break;
|
|
case PERIPH_ID_I2C3:
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_A12, S5P_GPIO_FUNC(0x3));
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_A13, S5P_GPIO_FUNC(0x3));
|
|
break;
|
|
case PERIPH_ID_I2C4:
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_B2, S5P_GPIO_FUNC(0x3));
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_B3, S5P_GPIO_FUNC(0x3));
|
|
break;
|
|
case PERIPH_ID_I2C5:
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_B6, S5P_GPIO_FUNC(0x3));
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_B7, S5P_GPIO_FUNC(0x3));
|
|
break;
|
|
case PERIPH_ID_I2C6:
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_C13, S5P_GPIO_FUNC(0x4));
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_C14, S5P_GPIO_FUNC(0x4));
|
|
break;
|
|
case PERIPH_ID_I2C7:
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_D02, S5P_GPIO_FUNC(0x3));
|
|
gpio_cfg_pin(EXYNOS4X12_GPIO_D03, S5P_GPIO_FUNC(0x3));
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int exynos4x12_mmc_config(int peripheral, int flags)
|
|
{
|
|
int i, start = 0, start_ext = 0;
|
|
unsigned int func, ext_func;
|
|
|
|
switch (peripheral) {
|
|
case PERIPH_ID_SDMMC0:
|
|
start = EXYNOS4X12_GPIO_K00;
|
|
start_ext = EXYNOS4X12_GPIO_K13;
|
|
func = S5P_GPIO_FUNC(0x2);
|
|
ext_func = S5P_GPIO_FUNC(0x3);
|
|
break;
|
|
case PERIPH_ID_SDMMC2:
|
|
start = EXYNOS4X12_GPIO_K20;
|
|
start_ext = EXYNOS4X12_GPIO_K33;
|
|
func = S5P_GPIO_FUNC(0x2);
|
|
ext_func = S5P_GPIO_FUNC(0x3);
|
|
break;
|
|
case PERIPH_ID_SDMMC4:
|
|
start = EXYNOS4X12_GPIO_K00;
|
|
start_ext = EXYNOS4X12_GPIO_K13;
|
|
func = S5P_GPIO_FUNC(0x3);
|
|
ext_func = S5P_GPIO_FUNC(0x4);
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
for (i = start; i < (start + 7); i++) {
|
|
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
|
|
if (i == (start + 2))
|
|
continue;
|
|
gpio_cfg_pin(i, func);
|
|
gpio_set_drv(i, S5P_GPIO_DRV_4X);
|
|
}
|
|
if (flags & PINMUX_FLAG_8BIT_MODE) {
|
|
for (i = start_ext; i < (start_ext + 4); i++) {
|
|
gpio_cfg_pin(i, ext_func);
|
|
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
|
|
gpio_set_drv(i, S5P_GPIO_DRV_4X);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void exynos4x12_uart_config(int peripheral)
|
|
{
|
|
int i, start, count;
|
|
|
|
switch (peripheral) {
|
|
case PERIPH_ID_UART0:
|
|
start = EXYNOS4X12_GPIO_A00;
|
|
count = 4;
|
|
break;
|
|
case PERIPH_ID_UART1:
|
|
start = EXYNOS4X12_GPIO_A04;
|
|
count = 4;
|
|
break;
|
|
case PERIPH_ID_UART2:
|
|
start = EXYNOS4X12_GPIO_A10;
|
|
count = 4;
|
|
break;
|
|
case PERIPH_ID_UART3:
|
|
start = EXYNOS4X12_GPIO_A14;
|
|
count = 2;
|
|
break;
|
|
default:
|
|
debug("%s: invalid peripheral %d", __func__, peripheral);
|
|
return;
|
|
}
|
|
for (i = start; i < (start + count); i++) {
|
|
gpio_set_pull(i, S5P_GPIO_PULL_NONE);
|
|
gpio_cfg_pin(i, S5P_GPIO_FUNC(0x2));
|
|
}
|
|
}
|
|
|
|
static int exynos4_pinmux_config(int peripheral, int flags)
|
|
{
|
|
switch (peripheral) {
|
|
case PERIPH_ID_UART0:
|
|
case PERIPH_ID_UART1:
|
|
case PERIPH_ID_UART2:
|
|
case PERIPH_ID_UART3:
|
|
exynos4_uart_config(peripheral);
|
|
break;
|
|
case PERIPH_ID_I2C0:
|
|
case PERIPH_ID_I2C1:
|
|
case PERIPH_ID_I2C2:
|
|
case PERIPH_ID_I2C3:
|
|
case PERIPH_ID_I2C4:
|
|
case PERIPH_ID_I2C5:
|
|
case PERIPH_ID_I2C6:
|
|
case PERIPH_ID_I2C7:
|
|
exynos4_i2c_config(peripheral, flags);
|
|
break;
|
|
case PERIPH_ID_SDMMC0:
|
|
case PERIPH_ID_SDMMC2:
|
|
case PERIPH_ID_SDMMC4:
|
|
return exynos4_mmc_config(peripheral, flags);
|
|
case PERIPH_ID_SDMMC1:
|
|
case PERIPH_ID_SDMMC3:
|
|
debug("SDMMC device %d not implemented\n", peripheral);
|
|
return -1;
|
|
default:
|
|
debug("%s: invalid peripheral %d", __func__, peripheral);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int exynos4x12_pinmux_config(int peripheral, int flags)
|
|
{
|
|
switch (peripheral) {
|
|
case PERIPH_ID_UART0:
|
|
case PERIPH_ID_UART1:
|
|
case PERIPH_ID_UART2:
|
|
case PERIPH_ID_UART3:
|
|
exynos4x12_uart_config(peripheral);
|
|
break;
|
|
case PERIPH_ID_I2C0:
|
|
case PERIPH_ID_I2C1:
|
|
case PERIPH_ID_I2C2:
|
|
case PERIPH_ID_I2C3:
|
|
case PERIPH_ID_I2C4:
|
|
case PERIPH_ID_I2C5:
|
|
case PERIPH_ID_I2C6:
|
|
case PERIPH_ID_I2C7:
|
|
exynos4x12_i2c_config(peripheral, flags);
|
|
break;
|
|
case PERIPH_ID_SDMMC0:
|
|
case PERIPH_ID_SDMMC2:
|
|
case PERIPH_ID_SDMMC4:
|
|
return exynos4x12_mmc_config(peripheral, flags);
|
|
case PERIPH_ID_SDMMC1:
|
|
case PERIPH_ID_SDMMC3:
|
|
debug("SDMMC device %d not implemented\n", peripheral);
|
|
return -1;
|
|
default:
|
|
debug("%s: invalid peripheral %d", __func__, peripheral);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int exynos_pinmux_config(int peripheral, int flags)
|
|
{
|
|
if (cpu_is_exynos5()) {
|
|
if (proid_is_exynos542x())
|
|
return exynos5420_pinmux_config(peripheral, flags);
|
|
else if (proid_is_exynos5250())
|
|
return exynos5_pinmux_config(peripheral, flags);
|
|
} else if (cpu_is_exynos4()) {
|
|
if (proid_is_exynos4412())
|
|
return exynos4x12_pinmux_config(peripheral, flags);
|
|
else
|
|
return exynos4_pinmux_config(peripheral, flags);
|
|
}
|
|
|
|
debug("pinmux functionality not supported\n");
|
|
|
|
return -1;
|
|
}
|
|
|
|
#if CONFIG_IS_ENABLED(OF_CONTROL)
|
|
static int exynos4_pinmux_decode_periph_id(const void *blob, int node)
|
|
{
|
|
int err;
|
|
u32 cell[3];
|
|
|
|
err = fdtdec_get_int_array(blob, node, "interrupts", cell,
|
|
ARRAY_SIZE(cell));
|
|
if (err) {
|
|
debug(" invalid peripheral id\n");
|
|
return PERIPH_ID_NONE;
|
|
}
|
|
|
|
return cell[1];
|
|
}
|
|
|
|
static int exynos5_pinmux_decode_periph_id(const void *blob, int node)
|
|
{
|
|
int err;
|
|
u32 cell[3];
|
|
|
|
err = fdtdec_get_int_array(blob, node, "interrupts", cell,
|
|
ARRAY_SIZE(cell));
|
|
if (err)
|
|
return PERIPH_ID_NONE;
|
|
|
|
return cell[1];
|
|
}
|
|
|
|
int pinmux_decode_periph_id(const void *blob, int node)
|
|
{
|
|
if (cpu_is_exynos5())
|
|
return exynos5_pinmux_decode_periph_id(blob, node);
|
|
else if (cpu_is_exynos4())
|
|
return exynos4_pinmux_decode_periph_id(blob, node);
|
|
|
|
return PERIPH_ID_NONE;
|
|
}
|
|
#endif
|