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mmc: Remove unused kona_sdhci driver

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As no platforms use this driver anymore, remove it.

Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Tom Rini
2025-07-11 09:20:01 -06:00
parent f57b4a94c5
commit fee5f4b619
3 changed files with 0 additions and 143 deletions
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10
drivers/mmc/Kconfig
View File

@@ -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

1
drivers/mmc/Makefile
View File

@@ -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

132
drivers/mmc/kona_sdhci.c
View File

@@ -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;
}