From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:13:47 +0200 Subject: Adding upstream version 2.8.0+dfsg. Signed-off-by: Daniel Baumann --- plat/brcm/board/stingray/driver/plat_emmc.c | 109 ++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 plat/brcm/board/stingray/driver/plat_emmc.c (limited to 'plat/brcm/board/stingray/driver/plat_emmc.c') diff --git a/plat/brcm/board/stingray/driver/plat_emmc.c b/plat/brcm/board/stingray/driver/plat_emmc.c new file mode 100644 index 0000000..82085e1 --- /dev/null +++ b/plat/brcm/board/stingray/driver/plat_emmc.c @@ -0,0 +1,109 @@ +/* + * Copyright (c) 2016 - 2020, Broadcom + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include + +#include + +#include + +#define ICFG_IPROC_IOPAD_CTRL_4 (IPROC_ROOT + 0x9c0) +#define ICFG_IPROC_IOPAD_CTRL_5 (IPROC_ROOT + 0x9c4) +#define ICFG_IPROC_IOPAD_CTRL_6 (IPROC_ROOT + 0x9c8) +#define ICFG_IPROC_IOPAD_CTRL_7 (IPROC_ROOT + 0x9cc) + +#define IOPAD_CTRL4_SDIO0_CD_IND_R 30 +#define IOPAD_CTRL4_SDIO0_CD_SRC_R 31 +#define IOPAD_CTRL4_SDIO0_CD_HYS_R 29 +#define IOPAD_CTRL4_SDIO0_CD_PULL_R 28 +#define IOPAD_CTRL4_SDIO0_CD_DRIVE_R 24 +#define IOPAD_CTRL4_SDIO0_CLK_SDCARD_SRC_R 23 +#define IOPAD_CTRL4_SDIO0_CLK_SDCARD_HYS_R 21 +#define IOPAD_CTRL4_SDIO0_CLK_SDCARD_DRIVE_R 17 + +#define IOPAD_CTRL4_SDIO0_DATA0_SRC_R 15 +#define IOPAD_CTRL4_SDIO0_DATA0_HYS_R 13 +#define IOPAD_CTRL4_SDIO0_DATA0_DRIVE_R 9 +#define IOPAD_CTRL4_SDIO0_DATA1_SRC_R 7 +#define IOPAD_CTRL4_SDIO0_DATA1_HYS_R 5 +#define IOPAD_CTRL4_SDIO0_DATA1_DRIVE_R 1 + +#define IOPAD_CTRL5_SDIO0_DATA2_SRC_R 31 +#define IOPAD_CTRL5_SDIO0_DATA2_HYS_R 29 +#define IOPAD_CTRL5_SDIO0_DATA2_DRIVE_R 25 +#define IOPAD_CTRL5_SDIO0_DATA3_SRC_R 23 +#define IOPAD_CTRL5_SDIO0_DATA3_IND_R 22 +#define IOPAD_CTRL5_SDIO0_DATA3_HYS_R 21 +#define IOPAD_CTRL5_SDIO0_DATA3_DRIVE_R 17 +#define IOPAD_CTRL5_SDIO0_DATA4_SRC_R 15 +#define IOPAD_CTRL5_SDIO0_DATA4_HYS_R 13 +#define IOPAD_CTRL5_SDIO0_DATA4_DRIVE_R 9 +#define IOPAD_CTRL5_SDIO0_DATA5_SRC_R 7 +#define IOPAD_CTRL5_SDIO0_DATA5_HYS_R 5 +#define IOPAD_CTRL5_SDIO0_DATA5_DRIVE_R 1 + +#define IOPAD_CTRL6_SDIO0_DATA6_SRC_R 31 +#define IOPAD_CTRL6_SDIO0_DATA6_HYS_R 29 +#define IOPAD_CTRL6_SDIO0_DATA6_DRIVE_R 25 +#define IOPAD_CTRL6_SDIO0_DATA7_SRC_R 23 +#define IOPAD_CTRL6_SDIO0_DATA7_HYS_R 21 +#define IOPAD_CTRL6_SDIO0_DATA7_DRIVE_R 17 + +void emmc_soft_reset(void) +{ + uint32_t val = 0; + + val = (BIT(IOPAD_CTRL6_SDIO0_DATA7_SRC_R) | + BIT(IOPAD_CTRL6_SDIO0_DATA7_HYS_R) | + BIT(IOPAD_CTRL6_SDIO0_DATA7_DRIVE_R) | + BIT(IOPAD_CTRL6_SDIO0_DATA6_SRC_R) | + BIT(IOPAD_CTRL6_SDIO0_DATA6_HYS_R) | + BIT(IOPAD_CTRL6_SDIO0_DATA6_DRIVE_R)); + + mmio_write_32(ICFG_IPROC_IOPAD_CTRL_6, val); + + val = (BIT(IOPAD_CTRL5_SDIO0_DATA3_SRC_R) | + BIT(IOPAD_CTRL5_SDIO0_DATA3_HYS_R) | + BIT(IOPAD_CTRL5_SDIO0_DATA3_DRIVE_R) | + BIT(IOPAD_CTRL5_SDIO0_DATA4_SRC_R) | + BIT(IOPAD_CTRL5_SDIO0_DATA4_HYS_R) | + BIT(IOPAD_CTRL5_SDIO0_DATA4_DRIVE_R) | + BIT(IOPAD_CTRL5_SDIO0_DATA5_SRC_R) | + BIT(IOPAD_CTRL5_SDIO0_DATA5_HYS_R) | + BIT(IOPAD_CTRL5_SDIO0_DATA5_DRIVE_R)); + + mmio_write_32(ICFG_IPROC_IOPAD_CTRL_5, val); + + val = (BIT(IOPAD_CTRL4_SDIO0_DATA0_SRC_R) | + BIT(IOPAD_CTRL4_SDIO0_DATA0_HYS_R) | + BIT(IOPAD_CTRL4_SDIO0_DATA0_DRIVE_R) | + BIT(IOPAD_CTRL4_SDIO0_DATA1_SRC_R) | + BIT(IOPAD_CTRL4_SDIO0_DATA1_HYS_R) | + BIT(IOPAD_CTRL4_SDIO0_DATA1_DRIVE_R) | + BIT(IOPAD_CTRL5_SDIO0_DATA2_SRC_R) | + BIT(IOPAD_CTRL5_SDIO0_DATA2_HYS_R) | + BIT(IOPAD_CTRL5_SDIO0_DATA2_DRIVE_R)); + + mmio_write_32(ICFG_IPROC_IOPAD_CTRL_6, val); + + val = (BIT(IOPAD_CTRL4_SDIO0_CLK_SDCARD_SRC_R) | + BIT(IOPAD_CTRL4_SDIO0_CLK_SDCARD_HYS_R) | + BIT(IOPAD_CTRL4_SDIO0_CLK_SDCARD_DRIVE_R) | + BIT(IOPAD_CTRL4_SDIO0_CD_SRC_R) | + BIT(IOPAD_CTRL4_SDIO0_CD_HYS_R)); + + /* + * set pull-down, clear pull-up=0 + * bit 12: pull-down bit 11: pull-up + * Note: In emulation, this pull-down setting was not + * sufficient. Board design likely requires pull down on + * this pin for eMMC. + */ + + val |= BIT(IOPAD_CTRL4_SDIO0_CD_PULL_R); + + mmio_write_32(ICFG_IPROC_IOPAD_CTRL_4, val); +} -- cgit v1.2.3