[PATCH v2 04/11] powerpc: mpc8xx: CPM parameter RAM can be anywhere

[Christophe Leroy]

With relocation, CPM parameter RAM can be anywhere in the
dual port RAM, so don't split dual port RAM.

Remove dparam and dparam16 members of struct comm_proc

PROFF_XXX become offsets from the start of dual port RAM,
then they are now consistant with the offsets in RPBASE
registers.

Signed-off-by: Christophe Leroy <christophe.leroy at csgroup.eu>
---
 arch/powerpc/cpu/mpc8xx/cpu.c        |  2 +-
 arch/powerpc/include/asm/cpm_8xx.h   | 18 +++++++++---------
 arch/powerpc/include/asm/immap_8xx.h |  8 +-------
 drivers/serial/serial_mpc8xx.c       |  2 +-
 drivers/spi/mpc8xx_spi.c             |  2 +-
 5 files changed, 13 insertions(+), 19 deletions(-)

diff --git a/arch/powerpc/cpu/mpc8xx/cpu.c b/arch/powerpc/cpu/mpc8xx/cpu.c
index 9b587fbbe8..56383cecde 100644
--- a/arch/powerpc/cpu/mpc8xx/cpu.c
+++ b/arch/powerpc/cpu/mpc8xx/cpu.c
@@ -127,7 +127,7 @@ static int check_CPU(long clock, uint pvr, uint immr)
 		return -1;
 
 	k = (immr << 16) |
-	    in_be16(&immap->im_cpm.cp_dparam16[PROFF_REVNUM / sizeof(u16)]);
+	    in_be16((u16 __iomem *)&immap->im_cpm.cp_dpmem[PROFF_REVNUM]);
 
 	/*
 	 * Some boards use sockets so different CPUs can be used.
diff --git a/arch/powerpc/include/asm/cpm_8xx.h b/arch/powerpc/include/asm/cpm_8xx.h
index 85903d2108..09c24efd91 100644
--- a/arch/powerpc/include/asm/cpm_8xx.h
+++ b/arch/powerpc/include/asm/cpm_8xx.h
@@ -92,15 +92,15 @@ typedef struct cpm_buf_desc {
 
 /* Parameter RAM offsets.
 */
-#define PROFF_SCC1	((uint)0x0000)
-#define PROFF_IIC	((uint)0x0080)
-#define PROFF_REVNUM	((uint)0x00b0)
-#define PROFF_SCC2	((uint)0x0100)
-#define PROFF_SPI	((uint)0x0180)
-#define PROFF_SCC3	((uint)0x0200)
-#define PROFF_SMC1	((uint)0x0280)
-#define PROFF_SCC4	((uint)0x0300)
-#define PROFF_SMC2	((uint)0x0380)
+#define PROFF_SCC1	((uint)0x1c00)
+#define PROFF_IIC	((uint)0x1c80)
+#define PROFF_REVNUM	((uint)0x1cb0)
+#define PROFF_SCC2	((uint)0x1d00)
+#define PROFF_SPI	((uint)0x1d80)
+#define PROFF_SCC3	((uint)0x1e00)
+#define PROFF_SMC1	((uint)0x1e80)
+#define PROFF_SCC4	((uint)0x1f00)
+#define PROFF_SMC2	((uint)0x1f80)
 
 /* Define enough so I can at least use the serial port as a UART.
  */
diff --git a/arch/powerpc/include/asm/immap_8xx.h b/arch/powerpc/include/asm/immap_8xx.h
index 3999a02b9c..cf1300f6e2 100644
--- a/arch/powerpc/include/asm/immap_8xx.h
+++ b/arch/powerpc/include/asm/immap_8xx.h
@@ -437,13 +437,7 @@ typedef struct comm_proc {
 	 * depending upon the devices used and options chosen.
 	 * Some processors don't have all of it populated.
 	 */
-	u_char	cp_dpmem[0x1C00];	/* BD / Data / ucode */
-
-	/* Parameter RAM */
-	union {
-		u_char	cp_dparam[0x400];
-		u16	cp_dparam16[0x200];
-	};
+	u_char	cp_dpmem[0x2000];	/* BD / Data / ucode / Param RAM */
 } cpm8xx_t;
 
 /* Internal memory map.
diff --git a/drivers/serial/serial_mpc8xx.c b/drivers/serial/serial_mpc8xx.c
index b8d6a81b65..beffc34d11 100644
--- a/drivers/serial/serial_mpc8xx.c
+++ b/drivers/serial/serial_mpc8xx.c
@@ -89,7 +89,7 @@ static int serial_mpc8xx_probe(struct udevice *dev)
 	/* initialize pointers to SMC */
 
 	sp = cp->cp_smc + SMC_INDEX;
-	up = (smc_uart_t __iomem *)&cp->cp_dparam[PROFF_SMC];
+	up = (smc_uart_t __iomem *)&cp->cp_dpmem[PROFF_SMC];
 	/* Disable relocation */
 	out_be16(&up->smc_rpbase, 0);
 
diff --git a/drivers/spi/mpc8xx_spi.c b/drivers/spi/mpc8xx_spi.c
index d84d7aea88..734b0751a9 100644
--- a/drivers/spi/mpc8xx_spi.c
+++ b/drivers/spi/mpc8xx_spi.c
@@ -51,7 +51,7 @@ static int mpc8xx_spi_probe(struct udevice *dev)
 {
 	immap_t __iomem *immr = (immap_t __iomem *)CONFIG_SYS_IMMR;
 	cpm8xx_t __iomem *cp = &immr->im_cpm;
-	spi_t __iomem *spi = (spi_t __iomem *)&cp->cp_dparam[PROFF_SPI];
+	spi_t __iomem *spi = (spi_t __iomem *)&cp->cp_dpmem[PROFF_SPI];
 	cbd_t __iomem *tbdf, *rbdf;
 
 	/* Disable relocation */
-- 
2.39.2