From 645e752c5a84baeb21015cdc85fc05b7d16312c8 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 01:13:52 +0000
Subject: [PATCH] disable i2c1
---
kernel/arch/powerpc/platforms/powermac/nvram.c | 24 ++++++++++++++++--------
1 files changed, 16 insertions(+), 8 deletions(-)
diff --git a/kernel/arch/powerpc/platforms/powermac/nvram.c b/kernel/arch/powerpc/platforms/powermac/nvram.c
index 60b03a1..853ccc4 100644
--- a/kernel/arch/powerpc/platforms/powermac/nvram.c
+++ b/kernel/arch/powerpc/platforms/powermac/nvram.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2002 Benjamin Herrenschmidt (benh@kernel.crashing.org)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*
* Todo: - add support for the OF persistent properties
*/
@@ -18,7 +14,7 @@
#include <linux/errno.h>
#include <linux/adb.h>
#include <linux/pmu.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
#include <linux/completion.h>
#include <linux/spinlock.h>
#include <asm/sections.h>
@@ -59,7 +55,7 @@
u8 cksum;
u16 len;
char name[12];
- u8 data[0];
+ u8 data[];
};
struct core99_header {
@@ -146,6 +142,11 @@
#ifdef CONFIG_PPC32
static volatile unsigned char __iomem *nvram_addr;
static int nvram_mult;
+
+static ssize_t ppc32_nvram_size(void)
+{
+ return NVRAM_SIZE;
+}
static unsigned char direct_nvram_read_byte(int addr)
{
@@ -513,7 +514,10 @@
printk(KERN_ERR "nvram: no address\n");
return -EINVAL;
}
- nvram_image = memblock_virt_alloc(NVRAM_SIZE, 0);
+ nvram_image = memblock_alloc(NVRAM_SIZE, SMP_CACHE_BYTES);
+ if (!nvram_image)
+ panic("%s: Failed to allocate %u bytes\n", __func__,
+ NVRAM_SIZE);
nvram_data = ioremap(addr, NVRAM_SIZE*2);
nvram_naddrs = 1; /* Make sure we get the correct case */
@@ -590,21 +594,25 @@
nvram_mult = 1;
ppc_md.nvram_read_val = direct_nvram_read_byte;
ppc_md.nvram_write_val = direct_nvram_write_byte;
+ ppc_md.nvram_size = ppc32_nvram_size;
} else if (nvram_naddrs == 1) {
nvram_data = ioremap(r1.start, s1);
nvram_mult = (s1 + NVRAM_SIZE - 1) / NVRAM_SIZE;
ppc_md.nvram_read_val = direct_nvram_read_byte;
ppc_md.nvram_write_val = direct_nvram_write_byte;
+ ppc_md.nvram_size = ppc32_nvram_size;
} else if (nvram_naddrs == 2) {
nvram_addr = ioremap(r1.start, s1);
nvram_data = ioremap(r2.start, s2);
ppc_md.nvram_read_val = indirect_nvram_read_byte;
ppc_md.nvram_write_val = indirect_nvram_write_byte;
+ ppc_md.nvram_size = ppc32_nvram_size;
} else if (nvram_naddrs == 0 && sys_ctrler == SYS_CTRLER_PMU) {
#ifdef CONFIG_ADB_PMU
nvram_naddrs = -1;
ppc_md.nvram_read_val = pmu_nvram_read_byte;
ppc_md.nvram_write_val = pmu_nvram_write_byte;
+ ppc_md.nvram_size = ppc32_nvram_size;
#endif /* CONFIG_ADB_PMU */
} else {
printk(KERN_ERR "Incompatible type of NVRAM\n");
--
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