Merge branch 'master' of git://git.denx.de/u-boot-mpc85xx

[u-boot] / drivers / net / fsl-mc / mc.c

diff --git a/drivers/net/fsl-mc/mc.c b/drivers/net/fsl-mc/mc.c
index fdbd5841868eb34efa063f9deafdc6c03f46d61a..1811b0fe1a3f13d40203013bb4fb3a5a05c66b3e 100644 (file)
--- a/drivers/net/fsl-mc/mc.c
+++ b/drivers/net/fsl-mc/mc.c
@@ -356,6 +356,12 @@ static unsigned long get_mc_boot_timeout_ms(void)
 }
 
 #ifdef CONFIG_SYS_LS_MC_DRAM_AIOP_IMG_OFFSET
+
+__weak bool soc_has_aiop(void)
+{
+       return false;
+}
+
 static int load_mc_aiop_img(u64 aiop_fw_addr)
 {
        u64 mc_ram_addr = mc_get_dram_addr();
@@ -363,6 +369,9 @@ static int load_mc_aiop_img(u64 aiop_fw_addr)
        void *aiop_img;
 #endif
 
+       /* Check if AIOP is available */
+       if (!soc_has_aiop())
+               return -ENODEV;
        /*
         * Load the MC AIOP image in the MC private DRAM block:
         */
@@ -455,7 +464,7 @@ int mc_init(u64 mc_fw_addr, u64 mc_dpc_addr)
 
        /*
         * Management Complex cores should be held at reset out of POR.
-        * U-boot should be the first software to touch MC. To be safe,
+        * U-Boot should be the first software to touch MC. To be safe,
         * we reset all cores again by setting GCR1 to 0. It doesn't do
         * anything if they are held at reset. After we setup the firmware
         * we kick off MC by deasserting the reset bit for core 0, and
@@ -747,11 +756,11 @@ static int dpio_init(void)
 err_get_swp_init:
        dpio_disable(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dpio->dpio_handle);
 err_get_enable:
-       free(dflt_dpio);
 err_get_attr:
        dpio_close(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dpio->dpio_handle);
        dpio_destroy(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dpio->dpio_handle);
 err_create:
+       free(dflt_dpio);
 err_malloc:
        return err;
 }
@@ -1147,7 +1156,8 @@ int fsl_mc_ldpaa_exit(bd_t *bd)
 {
        int err = 0;
 
-       if (bd && get_mc_boot_status() == -1)
+       /* MC is not loaded intentionally, So return success. */
+       if (bd && get_mc_boot_status() != 0)
                return 0;
 
        if (bd && !get_mc_boot_status() && get_dpl_apply_status() == -1) {
@@ -1234,6 +1244,7 @@ static int do_fsl_mc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
                                aiop_fw_addr = simple_strtoull(argv[3], NULL,
                                                               16);
 
+                               /* if SoC doesn't have AIOP, err = -ENODEV */
                                err = load_mc_aiop_img(aiop_fw_addr);
                                if (!err)
                                        printf("fsl-mc: AIOP FW applied\n");