fsl/pci: Add workaround for erratum A-005434

By default, all PEX inbound windows PEX_PEXIWARn[TRGT] are
mapped to 0xF, which is local memory. But for BSC9132, 0xF
is CCSR, 0x0 is local memory.

Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

arch/powerpc/cpu/mpc85xx/cmd_errata.c

@@ -299,6 +299,9 @@ static int do_errata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 #ifdef CONFIG_SYS_FSL_ERRATUM_A007212
 	check_erratum_a007212();
 #endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_A005434
+	puts("Work-around for Erratum A-005434 enabled\n");
+#endif
 
 	return 0;
 }

arch/powerpc/include/asm/config_mpc85xx.h

@@ -591,6 +591,7 @@
 #define CONFIG_SYS_FSL_ESDHC_P1010_BROKEN_SDCLK
 #define CONFIG_SYS_FSL_PCIE_COMPAT	"fsl,qoriq-pcie-v2.2"
 #define CONFIG_SYS_FSL_ERRATUM_A005125
+#define CONFIG_SYS_FSL_ERRATUM_A005434
 #define CONFIG_SYS_FSL_ERRATUM_I2C_A004447
 #define CONFIG_SYS_FSL_A004447_SVR_REV	0x11
 #define CONFIG_ESDHC_HC_BLK_ADDR

drivers/pci/fsl_pci_init.c

@@ -49,8 +49,13 @@ static void set_inbound_window(volatile pit_t *pi,
 				u64 size)
 {
 	u32 sz = (__ilog2_u64(size) - 1);
-	u32 flag = PIWAR_EN | PIWAR_LOCAL |
-			PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP;
+#ifdef CONFIG_SYS_FSL_ERRATUM_A005434
+	u32 flag = 0;
+#else
+	u32 flag = PIWAR_LOCAL;
+#endif
+
+	flag |= PIWAR_EN | PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP;
 
 	out_be32(&pi->pitar, r->phys_start >> 12);
 	out_be32(&pi->piwbar, r->bus_start >> 12);