dfc80387ae
SCI instances found in SH SoCs have different spacing between registers depending on the SoC. The platform data contains a regshift field that tells the driver by how many bits to shift the register offset to compute its address. We can compute the regshift value automatically based on the memory resource size, there's no need to pass the value through platform data. Fix the sh7750 SCI and sh7760 SIM port memory resources length to ensure proper computation of the regshift value. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
#ifndef __LINUX_SERIAL_SCI_H
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#define __LINUX_SERIAL_SCI_H
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#include <linux/bitops.h>
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#include <linux/serial_core.h>
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#include <linux/sh_dma.h>
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/*
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* Generic header for SuperH (H)SCI(F) (used by sh/sh64 and related parts)
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*/
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/* Serial Control Register (@ = not supported by all parts) */
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#define SCSCR_TIE BIT(7) /* Transmit Interrupt Enable */
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#define SCSCR_RIE BIT(6) /* Receive Interrupt Enable */
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#define SCSCR_TE BIT(5) /* Transmit Enable */
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#define SCSCR_RE BIT(4) /* Receive Enable */
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#define SCSCR_REIE BIT(3) /* Receive Error Interrupt Enable @ */
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#define SCSCR_TOIE BIT(2) /* Timeout Interrupt Enable @ */
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#define SCSCR_CKE1 BIT(1) /* Clock Enable 1 */
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#define SCSCR_CKE0 BIT(0) /* Clock Enable 0 */
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enum {
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SCIx_PROBE_REGTYPE,
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SCIx_SCI_REGTYPE,
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SCIx_IRDA_REGTYPE,
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SCIx_SCIFA_REGTYPE,
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SCIx_SCIFB_REGTYPE,
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SCIx_SH2_SCIF_FIFODATA_REGTYPE,
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SCIx_SH3_SCIF_REGTYPE,
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SCIx_SH4_SCIF_REGTYPE,
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SCIx_SH4_SCIF_BRG_REGTYPE,
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SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
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SCIx_SH4_SCIF_FIFODATA_REGTYPE,
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SCIx_SH7705_SCIF_REGTYPE,
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SCIx_HSCIF_REGTYPE,
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SCIx_NR_REGTYPES,
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};
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struct plat_sci_port_ops {
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void (*init_pins)(struct uart_port *, unsigned int cflag);
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};
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/*
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* Platform device specific platform_data struct
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*/
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struct plat_sci_port {
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unsigned int type; /* SCI / SCIF / IRDA / HSCIF */
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upf_t flags; /* UPF_* flags */
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unsigned int sampling_rate;
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unsigned int scscr; /* SCSCR initialization */
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/*
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* Platform overrides if necessary, defaults otherwise.
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*/
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unsigned char regtype;
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struct plat_sci_port_ops *ops;
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};
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#endif /* __LINUX_SERIAL_SCI_H */
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