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sdhci: simplify sdhci_get_fifolen()

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Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-Id: <20180208164818.7961-10-f4bug@amsat.org>
This commit is contained in:
Philippe Mathieu-Daudé 2018-02-08 13:47:57 -03:00 committed by Paolo Bonzini
parent aa164fbff3
commit 09b738ff65
2 changed files with 8 additions and 16 deletions
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4
hw/sd/sdhci-internal.h
View File

@ -24,6 +24,8 @@
#ifndef SDHCI_INTERNAL_H #ifndef SDHCI_INTERNAL_H
#define SDHCI_INTERNAL_H #define SDHCI_INTERNAL_H
#include "hw/registerfields.h"
/* R/W SDMA System Address register 0x0 */ /* R/W SDMA System Address register 0x0 */
#define SDHC_SYSAD 0x00 #define SDHC_SYSAD 0x00
@ -185,7 +187,7 @@
#define SDHC_CAN_DO_ADMA2 0x00080000 #define SDHC_CAN_DO_ADMA2 0x00080000
#define SDHC_CAN_DO_ADMA1 0x00100000 #define SDHC_CAN_DO_ADMA1 0x00100000
#define SDHC_64_BIT_BUS_SUPPORT (1 << 28) #define SDHC_64_BIT_BUS_SUPPORT (1 << 28)
#define SDHC_CAPAB_BLOCKSIZE(x) (((x) >> 16) & 0x3) FIELD(SDHC_CAPAB, MAXBLOCKLENGTH, 16, 2);
/* HWInit Maximum Current Capabilities Register 0x0 */ /* HWInit Maximum Current Capabilities Register 0x0 */
#define SDHC_MAXCURR 0x48 #define SDHC_MAXCURR 0x48

20
hw/sd/sdhci.c
View File

@ -58,6 +58,11 @@
*/ */
#define SDHC_CAPAB_REG_DEFAULT 0x057834b4 #define SDHC_CAPAB_REG_DEFAULT 0x057834b4
static inline unsigned int sdhci_get_fifolen(SDHCIState *s)
{
return 1 << (9 + FIELD_EX32(s->capareg, SDHC_CAPAB, MAXBLOCKLENGTH));
}
static uint8_t sdhci_slotint(SDHCIState *s) static uint8_t sdhci_slotint(SDHCIState *s)
{ {
return (s->norintsts & s->norintsigen) || (s->errintsts & s->errintsigen) || return (s->norintsts & s->norintsigen) || (s->errintsts & s->errintsigen) ||
@ -1118,21 +1123,6 @@ static const MemoryRegionOps sdhci_mmio_ops = {
.endianness = DEVICE_LITTLE_ENDIAN, .endianness = DEVICE_LITTLE_ENDIAN,
}; };
static inline unsigned int sdhci_get_fifolen(SDHCIState *s)
{
switch (SDHC_CAPAB_BLOCKSIZE(s->capareg)) {
case 0:
return 512;
case 1:
return 1024;
case 2:
return 2048;
default:
hw_error("SDHC: unsupported value for maximum block size\n");
return 0;
}
}
static void sdhci_init_readonly_registers(SDHCIState *s, Error **errp) static void sdhci_init_readonly_registers(SDHCIState *s, Error **errp)
{ {
if (s->sd_spec_version != 2) { if (s->sd_spec_version != 2) {