[S] Change in coreboot[master]: soc/ti/am335x: Use 'enum cb_err'

[Elyes Haouas (Code Review)]

Elyes Haouas has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/69027 )

Change subject: soc/ti/am335x: Use 'enum cb_err'
......................................................................

soc/ti/am335x: Use 'enum cb_err'

Change-Id: Icf9d35b72aa233e4a40a50228883062062ad573f
Signed-off-by: Elyes Haouas 
---
M src/soc/ti/am335x/mmc.c
M src/soc/ti/am335x/mmc.h
2 files changed, 24 insertions(+), 13 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/27/69027/1

diff --git a/src/soc/ti/am335x/mmc.c b/src/soc/ti/am335x/mmc.c
index 577434c..467b878 100644
--- a/src/soc/ti/am335x/mmc.c
+++ b/src/soc/ti/am335x/mmc.c
@@ -5,6 +5,8 @@
 #include <commonlib/sd_mmc_ctrlr.h>
 #include <device/mmio.h>
 #include <timer.h>
+#include <types.h>
+
 #include "mmc.h"

#define AM335X_TIMEOUT_MSEC 1000
@@ -63,20 +65,20 @@
    return -1;
 }

-static int am335x_mmc_init(struct am335x_mmc *mmc)
+static enum cb_err am335x_mmc_init(struct am335x_mmc *mmc)
 {
    // Follows the initialisiation from the AM335X technical reference manual
    setbits32(&mmc->sysconfig, SYSCONFIG_SOFTRESET);

if (am335x_wait_for_reg(&mmc->sysstatus, SYSSTATUS_RESETDONE, AM335X_TIMEOUT_MSEC))
-		return -1;
+		return CB_ERR;

setbits32(&mmc->capa, CAPA_VS30);
    setbits32(&mmc->hctl, HCTL_SDVS_VS30 | HCTL_DTW_1BIT);
    setbits32(&mmc->hctl, HCTL_SDBP);

if (am335x_wait_for_reg(&mmc->hctl, HCTL_SDBP, AM335X_TIMEOUT_MSEC))
-		return -1;
+		return CB_ERR;

// Assumes the default input clock speed of 96MHz to set a minimum SD
    // speed of 400 KHz
@@ -85,7 +87,7 @@
    setbits32(&mmc->sysctl, SYSCTL_ICE | SYSCTL_CEN);

if (am335x_wait_for_reg(&mmc->sysctl, SYSCTL_ICS, AM335X_TIMEOUT_MSEC))
-		return -1;
+		return CB_ERR;

write32(&mmc->ie, IE_ERRORS | IE_TC | IE_CC);

@@ -96,12 +98,12 @@
    write32(&mmc->cmd, 0x00);

if (am335x_wait_for_reg(&mmc->stat, STAT_CC, AM335X_TIMEOUT_MSEC))
-		return -1;
+		return CB_ERR;

write32(&mmc->stat, 0xffffffffu);
    clrbits32(&mmc->con, CON_INIT);

-	return 0;
+	return CB_SUCCESS;
 }

static int am335x_send_cmd(struct sd_mmc_ctrlr *ctrlr, struct mmc_command *cmd,
@@ -254,16 +256,14 @@
    }
 }

-int am335x_mmc_init_storage(struct am335x_mmc_host *mmc_host)
+enum cb_err err am335x_mmc_init_storage(struct am335x_mmc_host *mmc_host)
 {
-	int err = 0;
-
    struct sd_mmc_ctrlr *mmc_ctrlr = &mmc_host->sd_mmc_ctrlr;
    memset(mmc_ctrlr, 0, sizeof(*mmc_ctrlr));

-	err = am335x_mmc_init(mmc_host->reg);
-	if (err != 0) {
+	enum cb_err err = am335x_mmc_init(mmc_host->reg);
+	if (err != CB_SUCCESS) {
    	printk(BIOS_ERR, "Initialising AM335X SD failed.\n");
    	return err;
    }
@@ -278,5 +278,5 @@
    mmc_ctrlr->f_min = 400000;
    mmc_ctrlr->bus_hz = 400000;

-	return 0;
+	return CB_SUCCESS;
 }
diff --git a/src/soc/ti/am335x/mmc.h b/src/soc/ti/am335x/mmc.h
index 3293332..cea0217 100644
--- a/src/soc/ti/am335x/mmc.h
+++ b/src/soc/ti/am335x/mmc.h
@@ -4,6 +4,7 @@
 #define AM335X_MMC_H

#include <commonlib/sd_mmc_ctrlr.h>
+#include <types.h>

#define MMCHS0_BASE 0x48060000

@@ -44,6 +45,6 @@
    uint32_t sd_clock_hz;
 };

-int am335x_mmc_init_storage(struct am335x_mmc_host *mmc_host);
+enum cb_err err am335x_mmc_init_storage(struct am335x_mmc_host *mmc_host);

#endif