powerpc/85xx: introduce and document CONFIG_SYS_CCSRBAR macros

Introduce the CONFIG_SYS_CCSRBAR_PHYS_HIGH and CONFIG_SYS_CCSRBAR_PHYS_LOW
macros, which contain the high and low portions of CONFIG_SYS_CCSRBAR_PHYS.
This is necessary for the assembly-language code that relocates CCSR, since
the assembler does not understand 64-bit constants.

CONFIG_SYS_CCSRBAR_PHYS is automatically defined from the
CONFIG_SYS_CCSRBAR_PHYS_HIGH and CONFIG_SYS_CCSRBAR_PHYS_LOW macros, so it
should not be defined in a board header file.  Similarly,
CONFIG_SYS_CCSRBAR_DEFAULT is defined for each SOC in config_mpc85xx.h, so
it should also not be defined in the board header file.

CONFIG_SYS_CCSR_DO_NOT_RELOCATE is a "short-cut" macro that guarantees that
CONFIG_SYS_CCSRBAR_PHYS is set to the same value as CONFIG_SYS_CCSRBAR_DEFAULT,
and so CCSR will not be relocated.

Since CONFIG_SYS_CCSRBAR_DEFAULT is locked to a fixed value, multi-stage U-Boot
builds (e.g. NAND) are required to relocate CCSR only during the last stage
(i.e. the "real" U-Boot).  All other stages should define
CONFIG_SYS_CCSR_DO_NOT_RELOCATE to ensure that CCSR is not relocated.

README is updated with descriptions of all the CONFIG_SYS_CCSRBAR_xxx macros.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h
index 7de8f744e5..691c075582 100644
--- a/arch/powerpc/include/asm/config_mpc85xx.h
+++ b/arch/powerpc/include/asm/config_mpc85xx.h
@@ -23,6 +23,10 @@
 
 /* SoC specific defines for Freescale MPC85xx (PQ3) and QorIQ processors */
 
+#ifdef CONFIG_SYS_CCSRBAR_DEFAULT
+#error "Do not define CONFIG_SYS_CCSRBAR_DEFAULT in the board header file."
+#endif
+
 /* Number of TLB CAM entries we have on FSL Book-E chips */
 #if defined(CONFIG_E500MC)
 #define CONFIG_SYS_NUM_TLBCAMS		64
@@ -34,34 +38,41 @@
 #define CONFIG_MAX_CPUS			1
 #define CONFIG_SYS_FSL_NUM_LAWS		12
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 
 #elif defined(CONFIG_MPC8540)
 #define CONFIG_MAX_CPUS			1
 #define CONFIG_SYS_FSL_NUM_LAWS		8
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 
 #elif defined(CONFIG_MPC8541)
 #define CONFIG_MAX_CPUS			1
 #define CONFIG_SYS_FSL_NUM_LAWS		8
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 
 #elif defined(CONFIG_MPC8544)
 #define CONFIG_MAX_CPUS			1
 #define CONFIG_SYS_FSL_NUM_LAWS		10
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 
 #elif defined(CONFIG_MPC8548)
 #define CONFIG_MAX_CPUS			1
 #define CONFIG_SYS_FSL_NUM_LAWS		10
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 
 #elif defined(CONFIG_MPC8555)
 #define CONFIG_MAX_CPUS			1
 #define CONFIG_SYS_FSL_NUM_LAWS		8
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 
 #elif defined(CONFIG_MPC8560)
 #define CONFIG_MAX_CPUS			1
 #define CONFIG_SYS_FSL_NUM_LAWS		8
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 
 #elif defined(CONFIG_MPC8568)
 #define CONFIG_MAX_CPUS			1
@@ -70,6 +81,7 @@
 #define QE_MURAM_SIZE			0x10000UL
 #define MAX_QE_RISC			2
 #define QE_NUM_OF_SNUM			28
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 
 #elif defined(CONFIG_MPC8569)
 #define CONFIG_MAX_CPUS			1
@@ -78,11 +90,13 @@
 #define QE_MURAM_SIZE			0x20000UL
 #define MAX_QE_RISC			4
 #define QE_NUM_OF_SNUM			46
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 
 #elif defined(CONFIG_MPC8572)
 #define CONFIG_MAX_CPUS			2
 #define CONFIG_SYS_FSL_NUM_LAWS		12
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 #define CONFIG_SYS_FSL_ERRATUM_DDR_115
 #define CONFIG_SYS_FSL_ERRATUM_DDR111_DDR134
 
@@ -106,6 +120,7 @@
 #define CONFIG_TSECV2
 #define CONFIG_FSL_PCIE_DISABLE_ASPM
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
 
@@ -116,6 +131,7 @@
 #define CONFIG_TSECV2
 #define CONFIG_FSL_PCIE_DISABLE_ASPM
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
 #define QE_MURAM_SIZE			0x6000UL
@@ -128,6 +144,7 @@
 #define CONFIG_SYS_FSL_NUM_LAWS		12
 #define CONFIG_TSECV2
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
 #define CONFIG_FSL_SATA_ERRATUM_A001
@@ -151,6 +168,7 @@
 #define CONFIG_TSECV2
 #define CONFIG_FSL_PCIE_DISABLE_ASPM
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
 
@@ -166,6 +184,7 @@
 #define QE_MURAM_SIZE			0x6000UL
 #define MAX_QE_RISC			1
 #define QE_NUM_OF_SNUM			28
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 
 /* P1017 is single core version of P1023 */
 #elif defined(CONFIG_P1017)
@@ -179,6 +198,7 @@
 #define CONFIG_SYS_BMAN_NUM_PORTALS	3
 #define CONFIG_SYS_FM_MURAM_SIZE	0x10000
 #define CONFIG_SYS_FSL_PCIE_COMPAT	"fsl,qoriq-pcie-v2.2"
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff600000
 
 #elif defined(CONFIG_P1020)
 #define CONFIG_MAX_CPUS			2
@@ -186,6 +206,7 @@
 #define CONFIG_TSECV2
 #define CONFIG_FSL_PCIE_DISABLE_ASPM
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
 
@@ -195,6 +216,7 @@
 #define CONFIG_TSECV2
 #define CONFIG_FSL_PCIE_DISABLE_ASPM
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
 #define QE_MURAM_SIZE			0x6000UL
@@ -206,6 +228,7 @@
 #define CONFIG_SYS_FSL_NUM_LAWS		12
 #define CONFIG_TSECV2
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
 #define CONFIG_FSL_SATA_ERRATUM_A001
@@ -221,6 +244,7 @@
 #define CONFIG_SYS_BMAN_NUM_PORTALS	3
 #define CONFIG_SYS_FM_MURAM_SIZE	0x10000
 #define CONFIG_SYS_FSL_PCIE_COMPAT	"fsl,qoriq-pcie-v2.2"
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff600000
 
 /* P1024 is lower end variant of P1020 */
 #elif defined(CONFIG_P1024)
@@ -229,6 +253,7 @@
 #define CONFIG_TSECV2
 #define CONFIG_FSL_PCIE_DISABLE_ASPM
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
 
@@ -239,6 +264,7 @@
 #define CONFIG_TSECV2
 #define CONFIG_FSL_PCIE_DISABLE_ASPM
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
 #define QE_MURAM_SIZE			0x6000UL
@@ -250,6 +276,7 @@
 #define CONFIG_MAX_CPUS			1
 #define CONFIG_SYS_FSL_NUM_LAWS		12
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC_A001
 
@@ -257,6 +284,7 @@
 #define CONFIG_MAX_CPUS			2
 #define CONFIG_SYS_FSL_NUM_LAWS		12
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC_A001
 
@@ -271,6 +299,7 @@
 #define CONFIG_SYS_FM_MURAM_SIZE	0x28000
 #define CONFIG_SYS_FSL_TBCLK_DIV	32
 #define CONFIG_SYS_FSL_PCIE_COMPAT	"fsl,qoriq-pcie-v2.2"
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xfe000000
 #define CONFIG_SYS_FSL_USB1_PHY_ENABLE
 #define CONFIG_SYS_FSL_USB2_PHY_ENABLE
 #define CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY
@@ -288,6 +317,7 @@
 #define CONFIG_SYS_FM_MURAM_SIZE	0x28000
 #define CONFIG_SYS_FSL_TBCLK_DIV	32
 #define CONFIG_SYS_FSL_PCIE_COMPAT	"fsl,qoriq-pcie-v2.2"
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xfe000000
 #define CONFIG_SYS_FSL_USB1_PHY_ENABLE
 #define CONFIG_SYS_FSL_USB2_PHY_ENABLE
 #define CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY
@@ -305,6 +335,7 @@
 #define CONFIG_SYS_FM_MURAM_SIZE	0x28000
 #define CONFIG_SYS_FSL_TBCLK_DIV	32
 #define CONFIG_SYS_FSL_PCIE_COMPAT	"fsl,qoriq-pcie-v2.2"
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xfe000000
 #define CONFIG_SYS_FSL_USB1_PHY_ENABLE
 #define CONFIG_SYS_FSL_USB2_PHY_ENABLE
 #define CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY
@@ -318,6 +349,7 @@
 #define CONFIG_SYS_FM_MURAM_SIZE	0x28000
 #define CONFIG_SYS_FSL_TBCLK_DIV	16
 #define CONFIG_SYS_FSL_PCIE_COMPAT	"fsl,p4080-pcie"
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xfe000000
 
 #elif defined(CONFIG_PPC_P4080)
 #define CONFIG_MAX_CPUS			8
@@ -333,6 +365,7 @@
 #define CONFIG_SYS_FM_MURAM_SIZE	0x28000
 #define CONFIG_SYS_FSL_TBCLK_DIV	16
 #define CONFIG_SYS_FSL_PCIE_COMPAT	"fsl,p4080-pcie"
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xfe000000
 #define CONFIG_SYS_FSL_ERRATUM_CPC_A002
 #define CONFIG_SYS_FSL_ERRATUM_CPC_A003
 #define CONFIG_SYS_FSL_ERRATUM_DDR_A003
@@ -359,6 +392,7 @@
 #define CONFIG_SYS_FM_MURAM_SIZE	0x28000
 #define CONFIG_SYS_FSL_TBCLK_DIV	32
 #define CONFIG_SYS_FSL_PCIE_COMPAT	"fsl,qoriq-pcie-v2.2"
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xfe000000
 #define CONFIG_SYS_FSL_USB1_PHY_ENABLE
 #define CONFIG_SYS_FSL_USB2_PHY_ENABLE
 #define CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY
@@ -376,6 +410,7 @@
 #define CONFIG_SYS_FM_MURAM_SIZE	0x28000
 #define CONFIG_SYS_FSL_TBCLK_DIV	32
 #define CONFIG_SYS_FSL_PCIE_COMPAT	"fsl,qoriq-pcie-v2.2"
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xfe000000
 #define CONFIG_SYS_FSL_USB1_PHY_ENABLE
 #define CONFIG_SYS_FSL_USB2_PHY_ENABLE
 #define CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY
@@ -385,4 +420,8 @@
 #error Processor type not defined for this platform
 #endif
 
+#ifndef CONFIG_SYS_CCSRBAR_DEFAULT
+#error "CONFIG_SYS_CCSRBAR_DEFAULT is not defined for this platform."
+#endif
+
 #endif /* _ASM_MPC85xx_CONFIG_H_ */