diff options
| -rw-r--r-- | drivers/mmc/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/mmc/Makefile | 1 | ||||
| -rw-r--r-- | drivers/mmc/kona_sdhci.c | 132 |
3 files changed, 0 insertions, 143 deletions
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index 14f6f61fd55..382ede3f831 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -661,16 +661,6 @@ config MMC_SDHCI_F_SDH30 If you have a controller with this interface, say Y here. If unsure, say N. -config MMC_SDHCI_KONA - bool "SDHCI support on Broadcom KONA platform" - depends on MMC_SDHCI - help - This selects the Broadcom Kona Secure Digital Host Controller - Interface(SDHCI) support. - This is used in Broadcom mobile SoCs. - - If you have a controller with this interface, say Y here. - config MMC_SDHCI_MSM bool "Qualcomm SDHCI controller" depends on MMC_SDHCI && ARCH_SNAPDRAGON diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index 360706f53d2..9c934b69a07 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -64,7 +64,6 @@ obj-$(CONFIG_MMC_SDHCI_CADENCE) += sdhci-cadence6.o obj-$(CONFIG_MMC_SDHCI_CV1800B) += cv1800b_sdhci.o obj-$(CONFIG_MMC_SDHCI_AM654) += am654_sdhci.o obj-$(CONFIG_MMC_SDHCI_IPROC) += iproc_sdhci.o -obj-$(CONFIG_MMC_SDHCI_KONA) += kona_sdhci.o obj-$(CONFIG_MMC_SDHCI_MSM) += msm_sdhci.o obj-$(CONFIG_MMC_SDHCI_MV) += mv_sdhci.o obj-$(CONFIG_MMC_SDHCI_NPCM) += npcm_sdhci.o diff --git a/drivers/mmc/kona_sdhci.c b/drivers/mmc/kona_sdhci.c deleted file mode 100644 index 83f14122632..00000000000 --- a/drivers/mmc/kona_sdhci.c +++ /dev/null @@ -1,132 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright 2013 Broadcom Corporation. - */ - -#include <malloc.h> -#include <sdhci.h> -#include <linux/delay.h> -#include <linux/errno.h> -#include <asm/kona-common/clk.h> - -#define SDHCI_CORECTRL_OFFSET 0x00008000 -#define SDHCI_CORECTRL_EN 0x01 -#define SDHCI_CORECTRL_RESET 0x02 - -#define SDHCI_CORESTAT_OFFSET 0x00008004 -#define SDHCI_CORESTAT_CD_SW 0x01 - -#define SDHCI_COREIMR_OFFSET 0x00008008 -#define SDHCI_COREIMR_IP 0x01 - -static int init_kona_mmc_core(struct sdhci_host *host) -{ - unsigned int mask; - unsigned int timeout; - - if (sdhci_readb(host, SDHCI_SOFTWARE_RESET) & SDHCI_RESET_ALL) { - printf("%s: sd host controller reset error\n", __func__); - return -EBUSY; - } - - /* For kona a hardware reset before anything else. */ - mask = sdhci_readl(host, SDHCI_CORECTRL_OFFSET) | SDHCI_CORECTRL_RESET; - sdhci_writel(host, mask, SDHCI_CORECTRL_OFFSET); - - /* Wait max 100 ms */ - timeout = 1000; - do { - if (timeout == 0) { - printf("%s: reset timeout error\n", __func__); - return -ETIMEDOUT; - } - timeout--; - udelay(100); - } while (0 == - (sdhci_readl(host, SDHCI_CORECTRL_OFFSET) & - SDHCI_CORECTRL_RESET)); - - /* Clear the reset bit. */ - mask = mask & ~SDHCI_CORECTRL_RESET; - sdhci_writel(host, mask, SDHCI_CORECTRL_OFFSET); - - /* Enable AHB clock */ - mask = sdhci_readl(host, SDHCI_CORECTRL_OFFSET); - sdhci_writel(host, mask | SDHCI_CORECTRL_EN, SDHCI_CORECTRL_OFFSET); - - /* Enable interrupts */ - sdhci_writel(host, SDHCI_COREIMR_IP, SDHCI_COREIMR_OFFSET); - - /* Make sure Card is detected in controller */ - mask = sdhci_readl(host, SDHCI_CORESTAT_OFFSET); - sdhci_writel(host, mask | SDHCI_CORESTAT_CD_SW, SDHCI_CORESTAT_OFFSET); - - /* Wait max 100 ms */ - timeout = 1000; - while (!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) { - if (timeout == 0) { - printf("%s: CARD DETECT timeout error\n", __func__); - return -ETIMEDOUT; - } - timeout--; - udelay(100); - } - return 0; -} - -int kona_sdhci_init(int dev_index, u32 min_clk, u32 quirks) -{ - int ret = 0; - u32 max_clk; - void *reg_base; - struct sdhci_host *host = NULL; - - host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host)); - if (!host) { - printf("%s: sdhci host malloc fail!\n", __func__); - return -ENOMEM; - } - switch (dev_index) { - case 0: - reg_base = (void *)CONFIG_SYS_SDIO_BASE0; - ret = clk_sdio_enable(reg_base, CONFIG_SYS_SDIO0_MAX_CLK, - &max_clk); - break; - case 1: - reg_base = (void *)CONFIG_SYS_SDIO_BASE1; - ret = clk_sdio_enable(reg_base, CONFIG_SYS_SDIO1_MAX_CLK, - &max_clk); - break; - case 2: - reg_base = (void *)CONFIG_SYS_SDIO_BASE2; - ret = clk_sdio_enable(reg_base, CONFIG_SYS_SDIO2_MAX_CLK, - &max_clk); - break; - case 3: - reg_base = (void *)CONFIG_SYS_SDIO_BASE3; - ret = clk_sdio_enable(reg_base, CONFIG_SYS_SDIO3_MAX_CLK, - &max_clk); - break; - default: - printf("%s: sdio dev index %d not supported\n", - __func__, dev_index); - ret = -EINVAL; - } - if (ret) { - free(host); - return ret; - } - - host->name = "kona-sdhci"; - host->ioaddr = reg_base; - host->quirks = quirks; - host->max_clk = max_clk; - - if (init_kona_mmc_core(host)) { - free(host); - return -EINVAL; - } - - add_sdhci(host, 0, min_clk); - return ret; -} |