| Message ID | 20240702140842.54242-4-philmd@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | qtest/npcm7xx_sdhci: Use card-provided address (RCA) | expand |
On 7/2/24 4:08 PM, Philippe Mathieu-Daudé wrote: > Currently setup_sd_card() asks the card its address, > but discard the response and use hardcoded 0x4567. > > Set the SDHC_CMD_RESPONSE bit to have the controller > record the bus response, and read the response from > the RSPREG0 register. Then we can select the card with > its real address. > > Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> > --- > Cc: Hao Wu <wuhaotsh@google.com> > Cc: Chris Rauer <crauer@google.com> > Cc: Shengtan Mao <stmao@google.com> > Cc: Patrick Venture <venture@google.com> > Cc: Tyrone Ting <kfting@nuvoton.com> > --- > tests/qtest/libqos/sdhci-cmd.h | 2 ++ > tests/qtest/npcm7xx_sdhci-test.c | 8 ++++++-- > 2 files changed, 8 insertions(+), 2 deletions(-) Tested-by: Cédric Le Goater <clg@redhat.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Thanks, C. > > diff --git a/tests/qtest/libqos/sdhci-cmd.h b/tests/qtest/libqos/sdhci-cmd.h > index 9e61dd4944..90efa028ef 100644 > --- a/tests/qtest/libqos/sdhci-cmd.h > +++ b/tests/qtest/libqos/sdhci-cmd.h > @@ -22,6 +22,7 @@ > #define SDHC_ARGUMENT 0x08 > #define SDHC_TRNMOD 0x0C > #define SDHC_CMDREG 0x0E > +#define SDHC_RSPREG0 0x10 > #define SDHC_BDATA 0x20 > #define SDHC_PRNSTS 0x24 > #define SDHC_BLKGAP 0x2A > @@ -38,6 +39,7 @@ > #define SDHC_TRNS_MULTI 0x0020 > > /* CMD Reg */ > +#define SDHC_CMD_RESPONSE (3 << 0) > #define SDHC_CMD_DATA_PRESENT (1 << 5) > #define SDHC_ALL_SEND_CID (2 << 8) > #define SDHC_SEND_RELATIVE_ADDR (3 << 8) > diff --git a/tests/qtest/npcm7xx_sdhci-test.c b/tests/qtest/npcm7xx_sdhci-test.c > index 5d68540e52..01f237a816 100644 > --- a/tests/qtest/npcm7xx_sdhci-test.c > +++ b/tests/qtest/npcm7xx_sdhci-test.c > @@ -30,6 +30,8 @@ char *sd_path; > > static QTestState *setup_sd_card(void) > { > + uint16_t rca; > + > QTestState *qts = qtest_initf( > "-machine kudo-bmc " > "-device sd-card,drive=drive0 " > @@ -43,8 +45,10 @@ static QTestState *setup_sd_card(void) > sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_APP_CMD); > sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0x41200000, 0, (41 << 8)); > sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_ALL_SEND_CID); > - sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_SEND_RELATIVE_ADDR); > - sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0x45670000, 0, > + sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_SEND_RELATIVE_ADDR > + | SDHC_CMD_RESPONSE); > + rca = qtest_readl(qts, NPCM7XX_MMC_BA + SDHC_RSPREG0) >> 16; > + sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, rca << 16, 0, > SDHC_SELECT_DESELECT_CARD); > > return qts;
diff --git a/tests/qtest/libqos/sdhci-cmd.h b/tests/qtest/libqos/sdhci-cmd.h index 9e61dd4944..90efa028ef 100644 --- a/tests/qtest/libqos/sdhci-cmd.h +++ b/tests/qtest/libqos/sdhci-cmd.h @@ -22,6 +22,7 @@ #define SDHC_ARGUMENT 0x08 #define SDHC_TRNMOD 0x0C #define SDHC_CMDREG 0x0E +#define SDHC_RSPREG0 0x10 #define SDHC_BDATA 0x20 #define SDHC_PRNSTS 0x24 #define SDHC_BLKGAP 0x2A @@ -38,6 +39,7 @@ #define SDHC_TRNS_MULTI 0x0020 /* CMD Reg */ +#define SDHC_CMD_RESPONSE (3 << 0) #define SDHC_CMD_DATA_PRESENT (1 << 5) #define SDHC_ALL_SEND_CID (2 << 8) #define SDHC_SEND_RELATIVE_ADDR (3 << 8) diff --git a/tests/qtest/npcm7xx_sdhci-test.c b/tests/qtest/npcm7xx_sdhci-test.c index 5d68540e52..01f237a816 100644 --- a/tests/qtest/npcm7xx_sdhci-test.c +++ b/tests/qtest/npcm7xx_sdhci-test.c @@ -30,6 +30,8 @@ char *sd_path; static QTestState *setup_sd_card(void) { + uint16_t rca; + QTestState *qts = qtest_initf( "-machine kudo-bmc " "-device sd-card,drive=drive0 " @@ -43,8 +45,10 @@ static QTestState *setup_sd_card(void) sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_APP_CMD); sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0x41200000, 0, (41 << 8)); sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_ALL_SEND_CID); - sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_SEND_RELATIVE_ADDR); - sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0x45670000, 0, + sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, 0, 0, SDHC_SEND_RELATIVE_ADDR + | SDHC_CMD_RESPONSE); + rca = qtest_readl(qts, NPCM7XX_MMC_BA + SDHC_RSPREG0) >> 16; + sdhci_cmd_regs(qts, NPCM7XX_MMC_BA, 0, 0, rca << 16, 0, SDHC_SELECT_DESELECT_CARD); return qts;
Currently setup_sd_card() asks the card its address, but discard the response and use hardcoded 0x4567. Set the SDHC_CMD_RESPONSE bit to have the controller record the bus response, and read the response from the RSPREG0 register. Then we can select the card with its real address. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> --- Cc: Hao Wu <wuhaotsh@google.com> Cc: Chris Rauer <crauer@google.com> Cc: Shengtan Mao <stmao@google.com> Cc: Patrick Venture <venture@google.com> Cc: Tyrone Ting <kfting@nuvoton.com> --- tests/qtest/libqos/sdhci-cmd.h | 2 ++ tests/qtest/npcm7xx_sdhci-test.c | 8 ++++++-- 2 files changed, 8 insertions(+), 2 deletions(-)