diff options
| author | Krzysztof Kozlowski <krzk@kernel.org> | 2017-04-22 21:07:09 +0200 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2017-04-25 11:17:49 +0100 |
| commit | d77b71c2a4eb89bbf5ad6c5c023056a17fd8c514 (patch) | |
| tree | 681f07e140ce3fccb660394c2b06592aa7004eef /hw | |
| parent | f4b5b021c847669b1c78050aea26fe9abceef6dd (diff) | |
hw/arm/exynos: Add generic SDHCI devices
Exynos4210 has four SD/MMC controllers supporting:
- SD Standard Host Specification Version 2.0,
- MMC Specification Version 4.3,
- SDIO Card Specification Version 2.0,
- DMA and ADMA.
Add emulation of SDHCI devices which allows accessing storage through SD
cards. Differences from real hardware:
- Devices are shipped with eMMC memory, not SD card.
- The Exynos4210 SDHCI has few more registers, e.g. for
controlling the clocks, additional status (0x80, 0x84, 0x8c). These
are not implemented.
Testing on smdkc210 machine with "-drive file=FILE,if=sd,bus=0,index=2".
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Message-id: 20170422190709.8676-1-krzk@kernel.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/arm/exynos4210.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/hw/arm/exynos4210.c b/hw/arm/exynos4210.c index 1d2b50cc4e..960f27e45a 100644 --- a/hw/arm/exynos4210.c +++ b/hw/arm/exynos4210.c @@ -32,6 +32,7 @@ #include "hw/arm/arm.h" #include "hw/loader.h" #include "hw/arm/exynos4210.h" +#include "hw/sd/sd.h" #include "hw/usb/hcd-ehci.h" #define EXYNOS4210_CHIPID_ADDR 0x10000000 @@ -72,6 +73,13 @@ #define EXYNOS4210_EXT_COMBINER_BASE_ADDR 0x10440000 #define EXYNOS4210_INT_COMBINER_BASE_ADDR 0x10448000 +/* SD/MMC host controllers */ +#define EXYNOS4210_SDHCI_CAPABILITIES 0x05E80080 +#define EXYNOS4210_SDHCI_BASE_ADDR 0x12510000 +#define EXYNOS4210_SDHCI_ADDR(n) (EXYNOS4210_SDHCI_BASE_ADDR + \ + 0x00010000 * (n)) +#define EXYNOS4210_SDHCI_NUMBER 4 + /* PMU SFR base address */ #define EXYNOS4210_PMU_BASE_ADDR 0x10020000 @@ -382,6 +390,27 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem, EXYNOS4210_UART3_FIFO_SIZE, 3, NULL, s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 3)]); + /*** SD/MMC host controllers ***/ + for (n = 0; n < EXYNOS4210_SDHCI_NUMBER; n++) { + DeviceState *carddev; + BlockBackend *blk; + DriveInfo *di; + + dev = qdev_create(NULL, "generic-sdhci"); + qdev_prop_set_uint32(dev, "capareg", EXYNOS4210_SDHCI_CAPABILITIES); + qdev_init_nofail(dev); + + busdev = SYS_BUS_DEVICE(dev); + sysbus_mmio_map(busdev, 0, EXYNOS4210_SDHCI_ADDR(n)); + sysbus_connect_irq(busdev, 0, s->irq_table[exynos4210_get_irq(29, n)]); + + di = drive_get(IF_SD, 0, n); + blk = di ? blk_by_legacy_dinfo(di) : NULL; + carddev = qdev_create(qdev_get_child_bus(dev, "sd-bus"), TYPE_SD_CARD); + qdev_prop_set_drive(carddev, "drive", blk, &error_abort); + qdev_init_nofail(carddev); + } + /*** Display controller (FIMD) ***/ sysbus_create_varargs("exynos4210.fimd", EXYNOS4210_FIMD0_BASE_ADDR, s->irq_table[exynos4210_get_irq(11, 0)], |