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ramips: move mtk-mmc init to probe function to avoid breaking NAND flash

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The driver messes with the pin control settings - MMC and NAND are
mutually exclusive

Signed-off-by: Felix Fietkau <nbd@nbd.name>
v19.07.3_mercusys_ac12_duma
Felix Fietkau 6 years ago
parent f95a4aa565
commit 6069bdd087
1 changed files with 28 additions and 36 deletions
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64
target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/sd.c
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@ -2739,6 +2739,34 @@ static int msdc_drv_probe(struct platform_device *pdev)
struct msdc_host *host;
struct msdc_hw *hw;
int ret, irq;
u32 reg;
printk("MTK MSDC device init.\n");
mtk_sd_device.dev.platform_data = &msdc0_hw;
if (ralink_soc == MT762X_SOC_MT7620A || ralink_soc == MT762X_SOC_MT7621AT) {
//#if defined (CONFIG_RALINK_MT7620) || defined (CONFIG_RALINK_MT7621)
reg = sdr_read32((volatile u32*)(RALINK_SYSCTL_BASE + 0x60)) & ~(0x3<<18);
//#if defined (CONFIG_RALINK_MT7620)
if (ralink_soc == MT762X_SOC_MT7620A)
reg |= 0x1<<18;
//#endif
} else {
//#elif defined (CONFIG_RALINK_MT7628)
/* TODO: maybe omitted when RAether already toggle AGPIO_CFG */
reg = sdr_read32((volatile u32*)(RALINK_SYSCTL_BASE + 0x3c));
reg |= 0x1e << 16;
sdr_write32((volatile u32*)(RALINK_SYSCTL_BASE + 0x3c), reg);
reg = sdr_read32((volatile u32*)(RALINK_SYSCTL_BASE + 0x60)) & ~(0x3<<10);
#if defined (CONFIG_MTK_MMC_EMMC_8BIT)
reg |= 0x3<<26 | 0x3<<28 | 0x3<<30;
msdc0_hw.data_pins = 8,
#endif
//#endif
}
sdr_write32((volatile u32*)(RALINK_SYSCTL_BASE + 0x60), reg);
//platform_device_register(&mtk_sd_device);
/* end of +++ */
pdev->dev.platform_data = &msdc0_hw;
@ -2995,42 +3023,6 @@ static struct platform_driver mt_msdc_driver = {
static int __init mt_msdc_init(void)
{
int ret;
/* +++ by chhung */
u32 reg;
#if defined (CONFIG_MTD_ANY_RALINK)
extern int ra_check_flash_type(void);
if(ra_check_flash_type() == 2) { /* NAND */
printk("%s: !!!!! SDXC Module Initialize Fail !!!!!", __func__);
return 0;
}
#endif
printk("MTK MSDC device init.\n");
mtk_sd_device.dev.platform_data = &msdc0_hw;
if (ralink_soc == MT762X_SOC_MT7620A || ralink_soc == MT762X_SOC_MT7621AT) {
//#if defined (CONFIG_RALINK_MT7620) || defined (CONFIG_RALINK_MT7621)
reg = sdr_read32((volatile u32*)(RALINK_SYSCTL_BASE + 0x60)) & ~(0x3<<18);
//#if defined (CONFIG_RALINK_MT7620)
if (ralink_soc == MT762X_SOC_MT7620A)
reg |= 0x1<<18;
//#endif
} else {
//#elif defined (CONFIG_RALINK_MT7628)
/* TODO: maybe omitted when RAether already toggle AGPIO_CFG */
reg = sdr_read32((volatile u32*)(RALINK_SYSCTL_BASE + 0x3c));
reg |= 0x1e << 16;
sdr_write32((volatile u32*)(RALINK_SYSCTL_BASE + 0x3c), reg);
reg = sdr_read32((volatile u32*)(RALINK_SYSCTL_BASE + 0x60)) & ~(0x3<<10);
#if defined (CONFIG_MTK_MMC_EMMC_8BIT)
reg |= 0x3<<26 | 0x3<<28 | 0x3<<30;
msdc0_hw.data_pins = 8,
#endif
//#endif
}
sdr_write32((volatile u32*)(RALINK_SYSCTL_BASE + 0x60), reg);
//platform_device_register(&mtk_sd_device);
/* end of +++ */
ret = platform_driver_register(&mt_msdc_driver);
if (ret) {

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