Enable initialize sdhci from DTB.
Signed-off-by: Michal Simek michal.simek@xilinx.com ---
Changes in v1: None
arch/arm/include/asm/arch-zynq/sys_proto.h | 1 + drivers/mmc/zynq_sdhci.c | 29 +++++++++++++++++++++++++++++ 2 files changed, 30 insertions(+)
diff --git a/arch/arm/include/asm/arch-zynq/sys_proto.h b/arch/arm/include/asm/arch-zynq/sys_proto.h index 110de90..bb089b6 100644 --- a/arch/arm/include/asm/arch-zynq/sys_proto.h +++ b/arch/arm/include/asm/arch-zynq/sys_proto.h @@ -18,5 +18,6 @@ extern void zynq_ddrc_init(void);
/* Driver extern functions */ extern int zynq_sdhci_init(u32 regbase); +extern int zynq_sdhci_of_init(const void *blob);
#endif /* _SYS_PROTO_H_ */ diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c index 610bef5..d39cbf0 100644 --- a/drivers/mmc/zynq_sdhci.c +++ b/drivers/mmc/zynq_sdhci.c @@ -7,6 +7,8 @@ */
#include <common.h> +#include <fdtdec.h> +#include <libfdt.h> #include <malloc.h> #include <sdhci.h> #include <asm/arch/sys_proto.h> @@ -31,3 +33,30 @@ int zynq_sdhci_init(u32 regbase) add_sdhci(host, 52000000, 52000000 >> 9); return 0; } + +#ifdef CONFIG_OF_CONTROL +int zynq_sdhci_of_init(const void *blob) +{ + int offset = 0; + u32 ret = 0; + u32 reg; + + debug("ZYNQ SDHCI: Initialization\n"); + + do { + offset = fdt_node_offset_by_compatible(blob, offset, + "arasan,sdhci-8.9a"); + if (offset != -1) { + reg = fdtdec_get_addr(blob, offset, "reg"); + if (reg != FDT_ADDR_T_NONE) { + ret |= zynq_sdhci_init(reg); + } else { + debug("ZYNQ SDHCI: Can't get base address\n"); + return -1; + } + } + } while (offset != -1); + + return ret; +} +#endif -- 1.8.2.3