diff options
Diffstat (limited to 'qemu/roms/u-boot/drivers/mmc/s5p_sdhci.c')
| -rw-r--r-- | qemu/roms/u-boot/drivers/mmc/s5p_sdhci.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/qemu/roms/u-boot/drivers/mmc/s5p_sdhci.c b/qemu/roms/u-boot/drivers/mmc/s5p_sdhci.c deleted file mode 100644 index ccae4ccae..000000000 --- a/qemu/roms/u-boot/drivers/mmc/s5p_sdhci.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - * (C) Copyright 2012 SAMSUNG Electronics - * Jaehoon Chung <jh80.chung@samsung.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <malloc.h> -#include <sdhci.h> -#include <fdtdec.h> -#include <libfdt.h> -#include <asm/gpio.h> -#include <asm/arch/mmc.h> -#include <asm/arch/clk.h> -#include <errno.h> -#ifdef CONFIG_OF_CONTROL -#include <asm/arch/pinmux.h> -#endif - -static char *S5P_NAME = "SAMSUNG SDHCI"; -static void s5p_sdhci_set_control_reg(struct sdhci_host *host) -{ - unsigned long val, ctrl; - /* - * SELCLKPADDS[17:16] - * 00 = 2mA - * 01 = 4mA - * 10 = 7mA - * 11 = 9mA - */ - sdhci_writel(host, SDHCI_CTRL4_DRIVE_MASK(0x3), SDHCI_CONTROL4); - - val = sdhci_readl(host, SDHCI_CONTROL2); - val &= SDHCI_CTRL2_SELBASECLK_SHIFT; - - val |= SDHCI_CTRL2_ENSTAASYNCCLR | - SDHCI_CTRL2_ENCMDCNFMSK | - SDHCI_CTRL2_ENFBCLKRX | - SDHCI_CTRL2_ENCLKOUTHOLD; - - sdhci_writel(host, val, SDHCI_CONTROL2); - - /* - * FCSEL3[31] FCSEL2[23] FCSEL1[15] FCSEL0[7] - * FCSel[1:0] : Rx Feedback Clock Delay Control - * Inverter delay means10ns delay if SDCLK 50MHz setting - * 01 = Delay1 (basic delay) - * 11 = Delay2 (basic delay + 2ns) - * 00 = Delay3 (inverter delay) - * 10 = Delay4 (inverter delay + 2ns) - */ - val = SDHCI_CTRL3_FCSEL0 | SDHCI_CTRL3_FCSEL1; - sdhci_writel(host, val, SDHCI_CONTROL3); - - /* - * SELBASECLK[5:4] - * 00/01 = HCLK - * 10 = EPLL - * 11 = XTI or XEXTCLK - */ - ctrl = sdhci_readl(host, SDHCI_CONTROL2); - ctrl &= ~SDHCI_CTRL2_SELBASECLK_MASK(0x3); - ctrl |= SDHCI_CTRL2_SELBASECLK_MASK(0x2); - sdhci_writel(host, ctrl, SDHCI_CONTROL2); -} - -int s5p_sdhci_init(u32 regbase, int index, int bus_width) -{ - struct sdhci_host *host = NULL; - host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host)); - if (!host) { - printf("sdhci__host malloc fail!\n"); - return 1; - } - - host->name = S5P_NAME; - host->ioaddr = (void *)regbase; - - host->quirks = SDHCI_QUIRK_NO_HISPD_BIT | SDHCI_QUIRK_BROKEN_VOLTAGE | - SDHCI_QUIRK_BROKEN_R1B | SDHCI_QUIRK_32BIT_DMA_ADDR | - SDHCI_QUIRK_WAIT_SEND_CMD | SDHCI_QUIRK_USE_WIDE8; - host->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195; - host->version = sdhci_readw(host, SDHCI_HOST_VERSION); - - host->set_control_reg = &s5p_sdhci_set_control_reg; - host->set_clock = set_mmc_clk; - host->index = index; - - host->host_caps = MMC_MODE_HC; - if (bus_width == 8) - host->host_caps |= MMC_MODE_8BIT; - - return add_sdhci(host, 52000000, 400000); -} - -#ifdef CONFIG_OF_CONTROL -struct sdhci_host sdhci_host[SDHCI_MAX_HOSTS]; - -static int do_sdhci_init(struct sdhci_host *host) -{ - int dev_id, flag; - int err = 0; - - flag = host->bus_width == 8 ? PINMUX_FLAG_8BIT_MODE : PINMUX_FLAG_NONE; - dev_id = host->index + PERIPH_ID_SDMMC0; - - if (fdt_gpio_isvalid(&host->pwr_gpio)) { - gpio_direction_output(host->pwr_gpio.gpio, 1); - err = exynos_pinmux_config(dev_id, flag); - if (err) { - debug("MMC not configured\n"); - return err; - } - } - - if (fdt_gpio_isvalid(&host->cd_gpio)) { - gpio_direction_output(host->cd_gpio.gpio, 0xf); - if (gpio_get_value(host->cd_gpio.gpio)) - return -ENODEV; - - err = exynos_pinmux_config(dev_id, flag); - if (err) { - printf("external SD not configured\n"); - return err; - } - } - - host->name = S5P_NAME; - - host->quirks = SDHCI_QUIRK_NO_HISPD_BIT | SDHCI_QUIRK_BROKEN_VOLTAGE | - SDHCI_QUIRK_BROKEN_R1B | SDHCI_QUIRK_32BIT_DMA_ADDR | - SDHCI_QUIRK_WAIT_SEND_CMD; - host->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195; - host->version = sdhci_readw(host, SDHCI_HOST_VERSION); - - host->set_control_reg = &s5p_sdhci_set_control_reg; - host->set_clock = set_mmc_clk; - - host->host_caps = MMC_MODE_HC; - - return add_sdhci(host, 52000000, 400000); -} - -static int sdhci_get_config(const void *blob, int node, struct sdhci_host *host) -{ - int bus_width, dev_id; - unsigned int base; - - /* Get device id */ - dev_id = pinmux_decode_periph_id(blob, node); - if (dev_id < PERIPH_ID_SDMMC0 && dev_id > PERIPH_ID_SDMMC3) { - debug("MMC: Can't get device id\n"); - return -1; - } - host->index = dev_id - PERIPH_ID_SDMMC0; - - /* Get bus width */ - bus_width = fdtdec_get_int(blob, node, "samsung,bus-width", 0); - if (bus_width <= 0) { - debug("MMC: Can't get bus-width\n"); - return -1; - } - host->bus_width = bus_width; - - /* Get the base address from the device node */ - base = fdtdec_get_addr(blob, node, "reg"); - if (!base) { - debug("MMC: Can't get base address\n"); - return -1; - } - host->ioaddr = (void *)base; - - fdtdec_decode_gpio(blob, node, "pwr-gpios", &host->pwr_gpio); - fdtdec_decode_gpio(blob, node, "cd-gpios", &host->cd_gpio); - - return 0; -} - -static int process_nodes(const void *blob, int node_list[], int count) -{ - struct sdhci_host *host; - int i, node; - - debug("%s: count = %d\n", __func__, count); - - /* build sdhci_host[] for each controller */ - for (i = 0; i < count; i++) { - node = node_list[i]; - if (node <= 0) - continue; - - host = &sdhci_host[i]; - - if (sdhci_get_config(blob, node, host)) { - printf("%s: failed to decode dev %d\n", __func__, i); - return -1; - } - do_sdhci_init(host); - } - return 0; -} - -int exynos_mmc_init(const void *blob) -{ - int count; - int node_list[SDHCI_MAX_HOSTS]; - - count = fdtdec_find_aliases_for_id(blob, "mmc", - COMPAT_SAMSUNG_EXYNOS_MMC, node_list, - SDHCI_MAX_HOSTS); - - process_nodes(blob, node_list, count); - - return 1; -} -#endif |