[U-Boot] [PATCH 29/82] x86: ivybridge: Add more debugging for failures

[Simon Glass]

Add various debug() messages in places where errors occur. This aids with
debugging.

Signed-off-by: Simon Glass <s...@chromium.org>
---

 arch/x86/cpu/ivybridge/cpu.c   |  4 +++-
 arch/x86/cpu/ivybridge/sdram.c | 36 +++++++++++++++++++++++++++---------
 2 files changed, 30 insertions(+), 10 deletions(-)

diff --git a/arch/x86/cpu/ivybridge/cpu.c b/arch/x86/cpu/ivybridge/cpu.c
index 85e361a..9d7c21d 100644
--- a/arch/x86/cpu/ivybridge/cpu.c
+++ b/arch/x86/cpu/ivybridge/cpu.c
@@ -169,8 +169,10 @@ int print_cpuinfo(void)
 
        /* Enable SPD ROMs and DDR-III DRAM */
        ret = uclass_first_device_err(UCLASS_I2C, &dev);
-       if (ret)
+       if (ret) {
+               debug("%s: Failed to get I2C\n", __func__);
                return ret;
+       }
 
        /* Prepare USB controller early in S3 resume */
        if (boot_mode == PEI_BOOT_RESUME) {
diff --git a/arch/x86/cpu/ivybridge/sdram.c b/arch/x86/cpu/ivybridge/sdram.c
index e0b06b5..eef6d78 100644
--- a/arch/x86/cpu/ivybridge/sdram.c
+++ b/arch/x86/cpu/ivybridge/sdram.c
@@ -207,8 +207,10 @@ static int copy_spd(struct udevice *dev, struct pei_data 
*peid)
        int ret;
 
        ret = mrc_locate_spd(dev, sizeof(peid->spd_data[0]), &data);
-       if (ret)
+       if (ret) {
+               debug("%s: Could not locate SPD\n", __func__);
                return ret;
+       }
 
        memcpy(peid->spd_data[0], data, sizeof(peid->spd_data[0]));
 
@@ -460,18 +462,26 @@ int dram_init(void)
 
        /* We need the pinctrl set up early */
        ret = syscon_get_by_driver_data(X86_SYSCON_PINCONF, &dev);
-       if (ret)
+       if (ret) {
+               debug("%s: Could not get pinconf\n", __func__);
                return ret;
+       }
 
        ret = uclass_first_device_err(UCLASS_NORTHBRIDGE, &dev);
-       if (ret)
+       if (ret) {
+               debug("%s: Could not get northbridge\n", __func__);
                return ret;
+       }
        ret = syscon_get_by_driver_data(X86_SYSCON_ME, &me_dev);
-       if (ret)
+       if (ret) {
+               debug("%s: Could not get ME\n", __func__);
                return ret;
+       }
        ret = copy_spd(dev, pei_data);
-       if (ret)
+       if (ret) {
+               debug("%s: Could not get SPD\n", __func__);
                return ret;
+       }
        pei_data->boot_mode = gd->arch.pei_boot_mode;
        debug("Boot mode %d\n", gd->arch.pei_boot_mode);
        debug("mrc_input %p\n", pei_data->mrc_input);
@@ -498,19 +508,27 @@ int dram_init(void)
 
        /* Wait for ME to be ready */
        ret = intel_early_me_init(me_dev);
-       if (ret)
+       if (ret) {
+               debug("%s: Could not init ME\n", __func__);
                return ret;
+       }
        ret = intel_early_me_uma_size(me_dev);
-       if (ret < 0)
+       if (ret < 0) {
+               debug("%s: Could not get UMA size\n", __func__);
                return ret;
+       }
 
        ret = mrc_common_init(dev, pei_data, false);
-       if (ret)
+       if (ret) {
+               debug("%s: mrc_common_init() failed\n", __func__);
                return ret;
+       }
 
        ret = sdram_find(dev);
-       if (ret)
+       if (ret) {
+               debug("%s: sdram_find() failed\n", __func__);
                return ret;
+       }
        gd->ram_size = gd->arch.meminfo.total_32bit_memory;
 
        debug("MRC output data length %#x at %p\n", pei_data->mrc_output_len,
-- 
2.8.0.rc3.226.g39d4020

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