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powerpc/8xx: Use IO accessors in microcode programming. 

Change microcode functions to use IO accessors and get rid
of volatile attributes.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2019-06-14 06:41:46 +00:00 committed by Michael Ellerman
parent 647d5ed0ae
commit c3eec5d7da
1 changed files with 16 additions and 18 deletions
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34
arch/powerpc/platforms/8xx/micropatch.c
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@ -243,13 +243,7 @@ static void __init cpm_write_patch(cpm8xx_t *cp, int offset, uint *patch, int le
void __init cpm_load_patch(cpm8xx_t *cp)
{
volatile cpm8xx_t *commproc;
volatile iic_t *iip;
volatile struct spi_pram *spp;
volatile smc_uart_t *smp;
commproc = cp;
commproc->cp_rccr = 0;
out_be16(&cp->cp_rccr, 0);
cpm_write_patch(cp, 0, patch_2000, sizeof(patch_2000));
cpm_write_patch(cp, 0xf00, patch_2f00, sizeof(patch_2f00));
@ -258,26 +252,30 @@ void __init cpm_load_patch(cpm8xx_t *cp)
if (IS_ENABLED(CONFIG_I2C_SPI_UCODE_PATCH) ||
IS_ENABLED(CONFIG_I2C_SPI_SMC1_UCODE_PATCH)) {
u16 rpbase = 0x500;
iic_t *iip;
struct spi_pram *spp;
iip = (iic_t *)&commproc->cp_dparam[PROFF_IIC];
iip->iic_rpbase = rpbase;
iip = (iic_t *)&cp->cp_dparam[PROFF_IIC];
out_be16(&iip->iic_rpbase, rpbase);
/* Put SPI above the IIC, also 32-byte aligned. */
spp = (struct spi_pram *)&commproc->cp_dparam[PROFF_SPI];
spp->rpbase = (rpbase + sizeof(iic_t) + 31) & ~31;
spp = (struct spi_pram *)&cp->cp_dparam[PROFF_SPI];
out_be16(&spp->rpbase, (rpbase + sizeof(iic_t) + 31) & ~31);
if (IS_ENABLED(CONFIG_I2C_SPI_SMC1_UCODE_PATCH)) {
smp = (smc_uart_t *)&commproc->cp_dparam[PROFF_SMC1];
smp->smc_rpbase = 0x1FC0;
smc_uart_t *smp;
smp = (smc_uart_t *)&cp->cp_dparam[PROFF_SMC1];
out_be16(&smp->smc_rpbase, 0x1FC0);
}
}
commproc->cp_cpmcr1 = patch_params.cpmcr1;
commproc->cp_cpmcr2 = patch_params.cpmcr2;
commproc->cp_cpmcr3 = patch_params.cpmcr3;
commproc->cp_cpmcr4 = patch_params.cpmcr4;
out_be16(&cp->cp_cpmcr1, patch_params.cpmcr1);
out_be16(&cp->cp_cpmcr2, patch_params.cpmcr2);
out_be16(&cp->cp_cpmcr3, patch_params.cpmcr3);
out_be16(&cp->cp_cpmcr4, patch_params.cpmcr4);
commproc->cp_rccr = patch_params.rccr;
out_be16(&cp->cp_rccr, patch_params.rccr);
pr_info("%s microcode patch installed\n", patch_name);
}