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powerpc: mpc8xx: CPM parameter RAM can be anywhere

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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@csgroup.eu>
This commit is contained in:
Christophe Leroy 2023-05-03 10:31:19 +02:00
parent 019b39b736
commit fdd243d81b
5 changed files with 13 additions and 19 deletions
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2
arch/powerpc/cpu/mpc8xx/cpu.c
View file

@ -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.

18
arch/powerpc/include/asm/cpm_8xx.h
View file

@ -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.
*/

8
arch/powerpc/include/asm/immap_8xx.h
View file

@ -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.

2
drivers/serial/serial_mpc8xx.c
View file

@ -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);

2
drivers/spi/mpc8xx_spi.c
View file

@ -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 */