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path: root/arch/powerpc/platforms/8xx/micropatch.c
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// SPDX-License-Identifier: GPL-2.0

/*
 * Microcode patches for the CPM as supplied by Motorola.
 * This is the one for IIC/SPI.  There is a newer one that
 * also relocates SMC2, but this would require additional changes
 * to uart.c, so I am holding off on that for a moment.
 */
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/8xx_immap.h>
#include <asm/cpm.h>
#include <asm/cpm1.h>

/*
 * I2C/SPI relocation patch arrays.
 */

#ifdef CONFIG_I2C_SPI_UCODE_PATCH

static uint patch_2000[] __initdata = {
	0x7FFFEFD9, 0x3FFD0000, 0x7FFB49F7, 0x7FF90000,
	0x5FEFADF7, 0x5F89ADF7, 0x5FEFAFF7, 0x5F89AFF7,
	0x3A9CFBC8, 0xE7C0EDF0, 0x77C1E1BB, 0xF4DC7F1D,
	0xABAD932F, 0x4E08FDCF, 0x6E0FAFF8, 0x7CCF76CF,
	0xFD1FF9CF, 0xABF88DC6, 0xAB5679F7, 0xB0937383,
	0xDFCE79F7, 0xB091E6BB, 0xE5BBE74F, 0xB3FA6F0F,
	0x6FFB76CE, 0xEE0DF9CF, 0x2BFBEFEF, 0xCFEEF9CF,
	0x76CEAD24, 0x90B2DF9A, 0x7FDDD0BF, 0x4BF847FD,
	0x7CCF76CE, 0xCFEF7E1F, 0x7F1D7DFD, 0xF0B6EF71,
	0x7FC177C1, 0xFBC86079, 0xE722FBC8, 0x5FFFDFFF,
	0x5FB2FFFB, 0xFBC8F3C8, 0x94A67F01, 0x7F1D5F39,
	0xAFE85F5E, 0xFFDFDF96, 0xCB9FAF7D, 0x5FC1AFED,
	0x8C1C5FC1, 0xAFDD5FC3, 0xDF9A7EFD, 0xB0B25FB2,
	0xFFFEABAD, 0x5FB2FFFE, 0x5FCE600B, 0xE6BB600B,
	0x5FCEDFC6, 0x27FBEFDF, 0x5FC8CFDE, 0x3A9CE7C0,
	0xEDF0F3C8, 0x7F0154CD, 0x7F1D2D3D, 0x363A7570,
	0x7E0AF1CE, 0x37EF2E68, 0x7FEE10EC, 0xADF8EFDE,
	0xCFEAE52F, 0x7D0FE12B, 0xF1CE5F65, 0x7E0A4DF8,
	0xCFEA5F72, 0x7D0BEFEE, 0xCFEA5F74, 0xE522EFDE,
	0x5F74CFDA, 0x0B627385, 0xDF627E0A, 0x30D8145B,
	0xBFFFF3C8, 0x5FFFDFFF, 0xA7F85F5E, 0xBFFE7F7D,
	0x10D31450, 0x5F36BFFF, 0xAF785F5E, 0xBFFDA7F8,
	0x5F36BFFE, 0x77FD30C0, 0x4E08FDCF, 0xE5FF6E0F,
	0xAFF87E1F, 0x7E0FFD1F, 0xF1CF5F1B, 0xABF80D5E,
	0x5F5EFFEF, 0x79F730A2, 0xAFDD5F34, 0x47F85F34,
	0xAFED7FDD, 0x50B24978, 0x47FD7F1D, 0x7DFD70AD,
	0xEF717EC1, 0x6BA47F01, 0x2D267EFD, 0x30DE5F5E,
	0xFFFD5F5E, 0xFFEF5F5E, 0xFFDF0CA0, 0xAFED0A9E,
	0xAFDD0C3A, 0x5F3AAFBD, 0x7FBDB082, 0x5F8247F8
};

static uint patch_2f00[] __initdata = {
	0x3E303430, 0x34343737, 0xABF7BF9B, 0x994B4FBD,
	0xBD599493, 0x349FFF37, 0xFB9B177D, 0xD9936956,
	0xBBFDD697, 0xBDD2FD11, 0x31DB9BB3, 0x63139637,
	0x93733693, 0x193137F7, 0x331737AF, 0x7BB9B999,
	0xBB197957, 0x7FDFD3D5, 0x73B773F7, 0x37933B99,
	0x1D115316, 0x99315315, 0x31694BF4, 0xFBDBD359,
	0x31497353, 0x76956D69, 0x7B9D9693, 0x13131979,
	0x79376935
};
#endif

/*
 * I2C/SPI/SMC1 relocation patch arrays.
 */

#ifdef CONFIG_I2C_SPI_SMC1_UCODE_PATCH

static uint patch_2000[] __initdata = {
	0x3fff0000, 0x3ffd0000, 0x3ffb0000, 0x3ff90000,
	0x5f13eff8, 0x5eb5eff8, 0x5f88adf7, 0x5fefadf7,
	0x3a9cfbc8, 0x77cae1bb, 0xf4de7fad, 0xabae9330,
	0x4e08fdcf, 0x6e0faff8, 0x7ccf76cf, 0xfdaff9cf,
	0xabf88dc8, 0xab5879f7, 0xb0925d8d, 0xdfd079f7,
	0xb090e6bb, 0xe5bbe74f, 0x9e046f0f, 0x6ffb76ce,
	0xee0cf9cf, 0x2bfbefef, 0xcfeef9cf, 0x76cead23,
	0x90b3df99, 0x7fddd0c1, 0x4bf847fd, 0x7ccf76ce,
	0xcfef77ca, 0x7eaf7fad, 0x7dfdf0b7, 0xef7a7fca,
	0x77cafbc8, 0x6079e722, 0xfbc85fff, 0xdfff5fb3,
	0xfffbfbc8, 0xf3c894a5, 0xe7c9edf9, 0x7f9a7fad,
	0x5f36afe8, 0x5f5bffdf, 0xdf95cb9e, 0xaf7d5fc3,
	0xafed8c1b, 0x5fc3afdd, 0x5fc5df99, 0x7efdb0b3,
	0x5fb3fffe, 0xabae5fb3, 0xfffe5fd0, 0x600be6bb,
	0x600b5fd0, 0xdfc827fb, 0xefdf5fca, 0xcfde3a9c,
	0xe7c9edf9, 0xf3c87f9e, 0x54ca7fed, 0x2d3a3637,
	0x756f7e9a, 0xf1ce37ef, 0x2e677fee, 0x10ebadf8,
	0xefdecfea, 0xe52f7d9f, 0xe12bf1ce, 0x5f647e9a,
	0x4df8cfea, 0x5f717d9b, 0xefeecfea, 0x5f73e522,
	0xefde5f73, 0xcfda0b61, 0x5d8fdf61, 0xe7c9edf9,
	0x7e9a30d5, 0x1458bfff, 0xf3c85fff, 0xdfffa7f8,
	0x5f5bbffe, 0x7f7d10d0, 0x144d5f33, 0xbfffaf78,
	0x5f5bbffd, 0xa7f85f33, 0xbffe77fd, 0x30bd4e08,
	0xfdcfe5ff, 0x6e0faff8, 0x7eef7e9f, 0xfdeff1cf,
	0x5f17abf8, 0x0d5b5f5b, 0xffef79f7, 0x309eafdd,
	0x5f3147f8, 0x5f31afed, 0x7fdd50af, 0x497847fd,
	0x7f9e7fed, 0x7dfd70a9, 0xef7e7ece, 0x6ba07f9e,
	0x2d227efd, 0x30db5f5b, 0xfffd5f5b, 0xffef5f5b,
	0xffdf0c9c, 0xafed0a9a, 0xafdd0c37, 0x5f37afbd,
	0x7fbdb081, 0x5f8147f8, 0x3a11e710, 0xedf0ccdd,
	0xf3186d0a, 0x7f0e5f06, 0x7fedbb38, 0x3afe7468,
	0x7fedf4fc, 0x8ffbb951, 0xb85f77fd, 0xb0df5ddd,
	0xdefe7fed, 0x90e1e74d, 0x6f0dcbf7, 0xe7decfed,
	0xcb74cfed, 0xcfeddf6d, 0x91714f74, 0x5dd2deef,
	0x9e04e7df, 0xefbb6ffb, 0xe7ef7f0e, 0x9e097fed,
	0xebdbeffa, 0xeb54affb, 0x7fea90d7, 0x7e0cf0c3,
	0xbffff318, 0x5fffdfff, 0xac59efea, 0x7fce1ee5,
	0xe2ff5ee1, 0xaffbe2ff, 0x5ee3affb, 0xf9cc7d0f,
	0xaef8770f, 0x7d0fb0c6, 0xeffbbfff, 0xcfef5ede,
	0x7d0fbfff, 0x5ede4cf8, 0x7fddd0bf, 0x49f847fd,
	0x7efdf0bb, 0x7fedfffd, 0x7dfdf0b7, 0xef7e7e1e,
	0x5ede7f0e, 0x3a11e710, 0xedf0ccab, 0xfb18ad2e,
	0x1ea9bbb8, 0x74283b7e, 0x73c2e4bb, 0x2ada4fb8,
	0xdc21e4bb, 0xb2a1ffbf, 0x5e2c43f8, 0xfc87e1bb,
	0xe74ffd91, 0x6f0f4fe8, 0xc7ba32e2, 0xf396efeb,
	0x600b4f78, 0xe5bb760b, 0x53acaef8, 0x4ef88b0e,
	0xcfef9e09, 0xabf8751f, 0xefef5bac, 0x741f4fe8,
	0x751e760d, 0x7fdbf081, 0x741cafce, 0xefcc7fce,
	0x751e70ac, 0x741ce7bb, 0x3372cfed, 0xafdbefeb,
	0xe5bb760b, 0x53f2aef8, 0xafe8e7eb, 0x4bf8771e,
	0x7e247fed, 0x4fcbe2cc, 0x7fbc30a9, 0x7b0f7a0f,
	0x34d577fd, 0x308b5db7, 0xde553e5f, 0xaf78741f,
	0x741f30f0, 0xcfef5e2c, 0x741f3eac, 0xafb8771e,
	0x5e677fed, 0x0bd3e2cc, 0x741ccfec, 0xe5ca53cd,
	0x6fcb4f74, 0x5dadde4b, 0x2ab63d38, 0x4bb3de30,
	0x751f741c, 0x6c42effa, 0xefea7fce, 0x6ffc30be,
	0xefec3fca, 0x30b3de2e, 0xadf85d9e, 0xaf7daefd,
	0x5d9ede2e, 0x5d9eafdd, 0x761f10ac, 0x1da07efd,
	0x30adfffe, 0x4908fb18, 0x5fffdfff, 0xafbb709b,
	0x4ef85e67, 0xadf814ad, 0x7a0f70ad, 0xcfef50ad,
	0x7a0fde30, 0x5da0afed, 0x3c12780f, 0xefef780f,
	0xefef790f, 0xa7f85e0f, 0xffef790f, 0xefef790f,
	0x14adde2e, 0x5d9eadfd, 0x5e2dfffb, 0xe79addfd,
	0xeff96079, 0x607ae79a, 0xddfceff9, 0x60795dff,
	0x607acfef, 0xefefefdf, 0xefbfef7f, 0xeeffedff,
	0xebffe7ff, 0xafefafdf, 0xafbfaf7f, 0xaeffadff,
	0xabffa7ff, 0x6fef6fdf, 0x6fbf6f7f, 0x6eff6dff,
	0x6bff67ff, 0x2fef2fdf, 0x2fbf2f7f, 0x2eff2dff,
	0x2bff27ff, 0x4e08fd1f, 0xe5ff6e0f, 0xaff87eef,
	0x7e0ffdef, 0xf11f6079, 0xabf8f542, 0x7e0af11c,
	0x37cfae3a, 0x7fec90be, 0xadf8efdc, 0xcfeae52f,
	0x7d0fe12b, 0xf11c6079, 0x7e0a4df8, 0xcfea5dc4,
	0x7d0befec, 0xcfea5dc6, 0xe522efdc, 0x5dc6cfda,
	0x4e08fd1f, 0x6e0faff8, 0x7c1f761f, 0xfdeff91f,
	0x6079abf8, 0x761cee24, 0xf91f2bfb, 0xefefcfec,
	0xf91f6079, 0x761c27fb, 0xefdf5da7, 0xcfdc7fdd,
	0xd09c4bf8, 0x47fd7c1f, 0x761ccfcf, 0x7eef7fed,
	0x7dfdf093, 0xef7e7f1e, 0x771efb18, 0x6079e722,
	0xe6bbe5bb, 0xae0ae5bb, 0x600bae85, 0xe2bbe2bb,
	0xe2bbe2bb, 0xaf02e2bb, 0xe2bb2ff9, 0x6079e2bb
};

static uint patch_2f00[] __initdata = {
	0x30303030, 0x3e3e3434, 0xabbf9b99, 0x4b4fbdbd,
	0x59949334, 0x9fff37fb, 0x9b177dd9, 0x936956bb,
	0xfbdd697b, 0xdd2fd113, 0x1db9f7bb, 0x36313963,
	0x79373369, 0x3193137f, 0x7331737a, 0xf7bb9b99,
	0x9bb19795, 0x77fdfd3d, 0x573b773f, 0x737933f7,
	0xb991d115, 0x31699315, 0x31531694, 0xbf4fbdbd,
	0x35931497, 0x35376956, 0xbd697b9d, 0x96931313,
	0x19797937, 0x6935af78, 0xb9b3baa3, 0xb8788683,
	0x368f78f7, 0x87778733, 0x3ffffb3b, 0x8e8f78b8,
	0x1d118e13, 0xf3ff3f8b, 0x6bd8e173, 0xd1366856,
	0x68d1687b, 0x3daf78b8, 0x3a3a3f87, 0x8f81378f,
	0xf876f887, 0x77fd8778, 0x737de8d6, 0xbbf8bfff,
	0xd8df87f7, 0xfd876f7b, 0x8bfff8bd, 0x8683387d,
	0xb873d87b, 0x3b8fd7f8, 0xf7338883, 0xbb8ee1f8,
	0xef837377, 0x3337b836, 0x817d11f8, 0x7378b878,
	0xd3368b7d, 0xed731b7d, 0x833731f3, 0xf22f3f23
};

static uint patch_2e00[] __initdata = {
	0x27eeeeee, 0xeeeeeeee, 0xeeeeeeee, 0xeeeeeeee,
	0xee4bf4fb, 0xdbd259bb, 0x1979577f, 0xdfd2d573,
	0xb773f737, 0x4b4fbdbd, 0x25b9b177, 0xd2d17376,
	0x956bbfdd, 0x697bdd2f, 0xff9f79ff, 0xff9ff22f
};
#endif

/*
 *  USB SOF patch arrays.
 */

#ifdef CONFIG_USB_SOF_UCODE_PATCH

static uint patch_2000[] __initdata = {
	0x7fff0000, 0x7ffd0000, 0x7ffb0000, 0x49f7ba5b,
	0xba383ffb, 0xf9b8b46d, 0xe5ab4e07, 0xaf77bffe,
	0x3f7bbf79, 0xba5bba38, 0xe7676076, 0x60750000
};

static uint patch_2f00[] __initdata = {
	0x3030304c, 0xcab9e441, 0xa1aaf220
};
#endif

void __init cpm_load_patch(cpm8xx_t *cp)
{
	volatile uint		*dp;		/* Dual-ported RAM. */
	volatile cpm8xx_t	*commproc;
#if defined(CONFIG_I2C_SPI_UCODE_PATCH) || \
    defined(CONFIG_I2C_SPI_SMC1_UCODE_PATCH)
	volatile iic_t		*iip;
	volatile struct spi_pram *spp;
#ifdef CONFIG_I2C_SPI_SMC1_UCODE_PATCH
	volatile smc_uart_t	*smp;
#endif
#endif
	int	i;

	commproc = cp;

#ifdef CONFIG_USB_SOF_UCODE_PATCH
	commproc->cp_rccr = 0;

	dp = (uint *)(commproc->cp_dpmem);
	for (i=0; i<(sizeof(patch_2000)/4); i++)
		*dp++ = patch_2000[i];

	dp = (uint *)&(commproc->cp_dpmem[0x0f00]);
	for (i=0; i<(sizeof(patch_2f00)/4); i++)
		*dp++ = patch_2f00[i];

	commproc->cp_rccr = 0x0009;

	printk("USB SOF microcode patch installed\n");
#endif /* CONFIG_USB_SOF_UCODE_PATCH */

#if defined(CONFIG_I2C_SPI_UCODE_PATCH) || \
    defined(CONFIG_I2C_SPI_SMC1_UCODE_PATCH)

	commproc->cp_rccr = 0;

	dp = (uint *)(commproc->cp_dpmem);
	for (i=0; i<(sizeof(patch_2000)/4); i++)
		*dp++ = patch_2000[i];

	dp = (uint *)&(commproc->cp_dpmem[0x0f00]);
	for (i=0; i<(sizeof(patch_2f00)/4); i++)
		*dp++ = patch_2f00[i];

	iip = (iic_t *)&commproc->cp_dparam[PROFF_IIC];
# define RPBASE 0x0500
	iip->iic_rpbase = RPBASE;

	/* Put SPI above the IIC, also 32-byte aligned.
	*/
	i = (RPBASE + sizeof(iic_t) + 31) & ~31;
	spp = (struct spi_pram *)&commproc->cp_dparam[PROFF_SPI];
	spp->rpbase = i;

# if defined(CONFIG_I2C_SPI_UCODE_PATCH)
	commproc->cp_cpmcr1 = 0x802a;
	commproc->cp_cpmcr2 = 0x8028;
	commproc->cp_cpmcr3 = 0x802e;
	commproc->cp_cpmcr4 = 0x802c;
	commproc->cp_rccr = 1;

	printk("I2C/SPI microcode patch installed.\n");
# endif /* CONFIG_I2C_SPI_UCODE_PATCH */

# if defined(CONFIG_I2C_SPI_SMC1_UCODE_PATCH)

	dp = (uint *)&(commproc->cp_dpmem[0x0e00]);
	for (i=0; i<(sizeof(patch_2e00)/4); i++)
		*dp++ = patch_2e00[i];

	commproc->cp_cpmcr1 = 0x8080;
	commproc->cp_cpmcr2 = 0x808a;
	commproc->cp_cpmcr3 = 0x8028;
	commproc->cp_cpmcr4 = 0x802a;
	commproc->cp_rccr = 3;

	smp = (smc_uart_t *)&commproc->cp_dparam[PROFF_SMC1];
	smp->smc_rpbase = 0x1FC0;

	printk("I2C/SPI/SMC1 microcode patch installed.\n");
# endif /* CONFIG_I2C_SPI_SMC1_UCODE_PATCH) */

#endif /* some variation of the I2C/SPI patch was selected */
}