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brcm80211: fmac: move core disable function to sdio_chip.c

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This patch is part of the abstracting chip backplane handle code
series.

Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Franky Lin 2011-11-04 22:23:31 +01:00 committed by John W. Linville
parent 5b45e54e77
commit 2d4a9af172
3 changed files with 111 additions and 114 deletions
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117
drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
View file

@ -309,38 +309,6 @@ struct rte_console {
/* Flags for SDH calls */
#define F2SYNC (SDIO_REQ_4BYTE | SDIO_REQ_FIXED)
/* sbimstate */
#define SBIM_IBE 0x20000 /* inbanderror */
#define SBIM_TO 0x40000 /* timeout */
#define SBIM_BY 0x01800000 /* busy (sonics >= 2.3) */
#define SBIM_RJ 0x02000000 /* reject (sonics >= 2.3) */
/* sbtmstatelow */
/* reset */
#define SBTML_RESET 0x0001
/* reject field */
#define SBTML_REJ_MASK 0x0006
/* reject */
#define SBTML_REJ 0x0002
/* temporary reject, for error recovery */
#define SBTML_TMPREJ 0x0004
/* Shift to locate the SI control flags in sbtml */
#define SBTML_SICF_SHIFT 16
/* sbtmstatehigh */
#define SBTMH_SERR 0x0001 /* serror */
#define SBTMH_INT 0x0002 /* interrupt */
#define SBTMH_BUSY 0x0004 /* busy */
#define SBTMH_TO 0x0020 /* timeout (sonics >= 2.3) */
/* Shift to locate the SI status flags in sbtmh */
#define SBTMH_SISF_SHIFT 16
/* sbidlow */
#define SBIDL_INIT 0x80 /* initiator */
/*
* Conversion of 802.1D priority to precedence level
*/
@ -3122,85 +3090,6 @@ static int brcmf_sdbrcm_write_vars(struct brcmf_bus *bus)
return bcmerror;
}
static void
brcmf_sdbrcm_chip_disablecore(struct brcmf_sdio_dev *sdiodev, u32 corebase)
{
u32 regdata;
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatelow), 4);
if (regdata & SBTML_RESET)
return;
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatelow), 4);
if ((regdata & (SICF_CLOCK_EN << SBTML_SICF_SHIFT)) != 0) {
/*
* set target reject and spin until busy is clear
* (preserve core-specific bits)
*/
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatelow), 4);
brcmf_sdcard_reg_write(sdiodev, CORE_SB(corebase, sbtmstatelow),
4, regdata | SBTML_REJ);
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatelow), 4);
udelay(1);
SPINWAIT((brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatehigh), 4) &
SBTMH_BUSY), 100000);
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatehigh), 4);
if (regdata & SBTMH_BUSY)
brcmf_dbg(ERROR, "ARM core still busy\n");
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbidlow), 4);
if (regdata & SBIDL_INIT) {
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbimstate), 4) |
SBIM_RJ;
brcmf_sdcard_reg_write(sdiodev,
CORE_SB(corebase, sbimstate), 4,
regdata);
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbimstate), 4);
udelay(1);
SPINWAIT((brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbimstate), 4) &
SBIM_BY), 100000);
}
/* set reset and reject while enabling the clocks */
brcmf_sdcard_reg_write(sdiodev,
CORE_SB(corebase, sbtmstatelow), 4,
(((SICF_FGC | SICF_CLOCK_EN) << SBTML_SICF_SHIFT) |
SBTML_REJ | SBTML_RESET));
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatelow), 4);
udelay(10);
/* clear the initiator reject bit */
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbidlow), 4);
if (regdata & SBIDL_INIT) {
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbimstate), 4) &
~SBIM_RJ;
brcmf_sdcard_reg_write(sdiodev,
CORE_SB(corebase, sbimstate), 4,
regdata);
}
}
/* leave reset and reject asserted */
brcmf_sdcard_reg_write(sdiodev, CORE_SB(corebase, sbtmstatelow), 4,
(SBTML_REJ | SBTML_RESET));
udelay(1);
}
static void
brcmf_sdbrcm_chip_resetcore(struct brcmf_sdio_dev *sdiodev, u32 corebase)
{
@ -3210,7 +3099,7 @@ brcmf_sdbrcm_chip_resetcore(struct brcmf_sdio_dev *sdiodev, u32 corebase)
* Must do the disable sequence first to work for
* arbitrary current core state.
*/
brcmf_sdbrcm_chip_disablecore(sdiodev, corebase);
brcmf_sdio_chip_coredisable(sdiodev, corebase);
/*
* Now do the initialization sequence.
@ -3258,7 +3147,7 @@ static int brcmf_sdbrcm_download_state(struct brcmf_bus *bus, bool enter)
if (enter) {
bus->alp_only = true;
brcmf_sdbrcm_chip_disablecore(bus->sdiodev,
brcmf_sdio_chip_coredisable(bus->sdiodev,
bus->ci->armcorebase);
brcmf_sdbrcm_chip_resetcore(bus->sdiodev, bus->ci->ramcorebase);
@ -4000,7 +3889,7 @@ brcmf_sdbrcm_chip_attach(struct brcmf_bus *bus, u32 regs)
* Make sure any on-chip ARM is off (in case strapping is wrong),
* or downloaded code was already running.
*/
brcmf_sdbrcm_chip_disablecore(bus->sdiodev, ci->armcorebase);
brcmf_sdio_chip_coredisable(bus->sdiodev, ci->armcorebase);
brcmf_sdcard_reg_write(bus->sdiodev,
CORE_CC_REG(ci->cccorebase, gpiopullup), 4, 0);

80
drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c
View file

@ -22,6 +22,7 @@
#include <brcm_hw_ids.h>
#include <brcmu_wifi.h>
#include <brcmu_utils.h>
#include <soc.h>
#include "dhd.h"
#include "dhd_dbg.h"
#include "sdio_host.h"
@ -51,6 +52,85 @@
#define SBIDH_VC_MASK 0xffff0000 /* vendor code */
#define SBIDH_VC_SHIFT 16
void
brcmf_sdio_chip_coredisable(struct brcmf_sdio_dev *sdiodev, u32 corebase)
{
u32 regdata;
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatelow), 4);
if (regdata & SBTML_RESET)
return;
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatelow), 4);
if ((regdata & (SICF_CLOCK_EN << SBTML_SICF_SHIFT)) != 0) {
/*
* set target reject and spin until busy is clear
* (preserve core-specific bits)
*/
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatelow), 4);
brcmf_sdcard_reg_write(sdiodev, CORE_SB(corebase, sbtmstatelow),
4, regdata | SBTML_REJ);
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatelow), 4);
udelay(1);
SPINWAIT((brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatehigh), 4) &
SBTMH_BUSY), 100000);
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatehigh), 4);
if (regdata & SBTMH_BUSY)
brcmf_dbg(ERROR, "core state still busy\n");
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbidlow), 4);
if (regdata & SBIDL_INIT) {
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbimstate), 4) |
SBIM_RJ;
brcmf_sdcard_reg_write(sdiodev,
CORE_SB(corebase, sbimstate), 4,
regdata);
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbimstate), 4);
udelay(1);
SPINWAIT((brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbimstate), 4) &
SBIM_BY), 100000);
}
/* set reset and reject while enabling the clocks */
brcmf_sdcard_reg_write(sdiodev,
CORE_SB(corebase, sbtmstatelow), 4,
(((SICF_FGC | SICF_CLOCK_EN) << SBTML_SICF_SHIFT) |
SBTML_REJ | SBTML_RESET));
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbtmstatelow), 4);
udelay(10);
/* clear the initiator reject bit */
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbidlow), 4);
if (regdata & SBIDL_INIT) {
regdata = brcmf_sdcard_reg_read(sdiodev,
CORE_SB(corebase, sbimstate), 4) &
~SBIM_RJ;
brcmf_sdcard_reg_write(sdiodev,
CORE_SB(corebase, sbimstate), 4,
regdata);
}
}
/* leave reset and reject asserted */
brcmf_sdcard_reg_write(sdiodev, CORE_SB(corebase, sbtmstatelow), 4,
(SBTML_REJ | SBTML_RESET));
udelay(1);
}
static int brcmf_sdio_chip_recognition(struct brcmf_sdio_dev *sdiodev,
struct chip_info *ci, u32 regs)
{

28
drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h
View file

@ -52,6 +52,31 @@
#define SBSDIO_CLKAV(regval, alponly) \
(SBSDIO_ALPAV(regval) && (alponly ? 1 : SBSDIO_HTAV(regval)))
/* sbimstate */
#define SBIM_IBE 0x20000 /* inbanderror */
#define SBIM_TO 0x40000 /* timeout */
#define SBIM_BY 0x01800000 /* busy (sonics >= 2.3) */
#define SBIM_RJ 0x02000000 /* reject (sonics >= 2.3) */
/* sbtmstatelow */
#define SBTML_RESET 0x0001 /* reset */
#define SBTML_REJ_MASK 0x0006 /* reject field */
#define SBTML_REJ 0x0002 /* reject */
#define SBTML_TMPREJ 0x0004 /* temporary reject(error recovery) */
/* Shift to locate the SI control flags in sbtml */
#define SBTML_SICF_SHIFT 16
/* sbtmstatehigh */
#define SBTMH_SERR 0x0001 /* serror */
#define SBTMH_INT 0x0002 /* interrupt */
#define SBTMH_BUSY 0x0004 /* busy */
#define SBTMH_TO 0x0020 /* timeout (sonics >= 2.3) */
/* Shift to locate the SI status flags in sbtmh */
#define SBTMH_SISF_SHIFT 16
/* sbidlow */
#define SBIDL_INIT 0x80 /* initiator */
struct chip_info {
u32 chip;
u32 chiprev;
@ -108,6 +133,9 @@ struct sbconfig {
u32 sbidhigh; /* identification */
};
extern void brcmf_sdio_chip_coredisable(struct brcmf_sdio_dev *sdiodev,
u32 corebase);
extern int brcmf_sdio_chip_attach(struct brcmf_sdio_dev *sdiodev,
struct chip_info *ci, u32 regs);