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/*
* Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_net.h>
#include <linux/slab.h>
#include "hardware.h"
unsigned long iram_tlb_base_addr;
unsigned long iram_tlb_phys_addr;
unsigned long save_ttbr1(void)
{
unsigned long lttbr1;
asm volatile(
".align 4\n"
"mrc p15, 0, %0, c2, c0, 1\n"
: "=r" (lttbr1)
);
return lttbr1;
}
void restore_ttbr1(unsigned long ttbr1)
{
asm volatile(
".align 4\n"
"mcr p15, 0, %0, c2, c0, 1\n"
: : "r" (ttbr1)
);
}
#define OCOTP_MAC_OFF (cpu_is_imx7d() ? 0x640 : 0x620)
#define OCOTP_MACn(n) (OCOTP_MAC_OFF + (n) * 0x10)
void __init imx6_enet_mac_init(const char *enet_compat, const char *ocotp_compat)
{
struct device_node *ocotp_np, *enet_np, *from = NULL;
void __iomem *base;
struct property *newmac;
u32 macaddr_low;
u32 macaddr_high = 0;
u32 macaddr1_high = 0;
u8 *macaddr;
int i, id;
for (i = 0; i < 2; i++) {
enet_np = of_find_compatible_node(from, NULL, enet_compat);
if (!enet_np)
return;
from = enet_np;
if (of_get_mac_address(enet_np))
goto put_enet_node;
id = of_alias_get_id(enet_np, "ethernet");
if (id < 0)
id = i;
ocotp_np = of_find_compatible_node(NULL, NULL, ocotp_compat);
if (!ocotp_np) {
pr_warn("failed to find ocotp node\n");
goto put_enet_node;
}
base = of_iomap(ocotp_np, 0);
if (!base) {
pr_warn("failed to map ocotp\n");
goto put_ocotp_node;
}
macaddr_low = readl_relaxed(base + OCOTP_MACn(1));
if (id)
macaddr1_high = readl_relaxed(base + OCOTP_MACn(2));
else
macaddr_high = readl_relaxed(base + OCOTP_MACn(0));
newmac = kzalloc(sizeof(*newmac) + 6, GFP_KERNEL);
if (!newmac)
goto put_ocotp_node;
newmac->value = newmac + 1;
newmac->length = 6;
newmac->name = kstrdup("local-mac-address", GFP_KERNEL);
if (!newmac->name) {
kfree(newmac);
goto put_ocotp_node;
}
macaddr = newmac->value;
if (id) {
macaddr[5] = (macaddr_low >> 16) & 0xff;
macaddr[4] = (macaddr_low >> 24) & 0xff;
macaddr[3] = macaddr1_high & 0xff;
macaddr[2] = (macaddr1_high >> 8) & 0xff;
macaddr[1] = (macaddr1_high >> 16) & 0xff;
macaddr[0] = (macaddr1_high >> 24) & 0xff;
} else {
macaddr[5] = macaddr_high & 0xff;
macaddr[4] = (macaddr_high >> 8) & 0xff;
macaddr[3] = (macaddr_high >> 16) & 0xff;
macaddr[2] = (macaddr_high >> 24) & 0xff;
macaddr[1] = macaddr_low & 0xff;
macaddr[0] = (macaddr_low >> 8) & 0xff;
}
of_update_property(enet_np, newmac);
put_ocotp_node:
of_node_put(ocotp_np);
put_enet_node:
of_node_put(enet_np);
}
}
#ifndef CONFIG_HAVE_IMX_GPC
int imx_gpc_mf_request_on(unsigned int irq, unsigned int on) { return 0; }
EXPORT_SYMBOL_GPL(imx_gpc_mf_request_on);
#endif
#if !defined(CONFIG_SOC_IMX6SL)
u32 imx6_lpddr2_freq_change_start, imx6_lpddr2_freq_change_end;
void mx6_lpddr2_freq_change(u32 freq, int bus_freq_mode) {}
#endif
#if !defined(CONFIG_SOC_IMX6SLL)
void imx6sll_lpddr2_freq_change(u32 freq, int bus_freq_mode) {}
#endif
#if !defined(CONFIG_SOC_IMX6SX) && !defined(CONFIG_SOC_IMX6UL)
u32 imx6_up_ddr3_freq_change_start, imx6_up_ddr3_freq_change_end;
struct imx6_busfreq_info {
} __aligned(8);
void imx6_up_ddr3_freq_change(struct imx6_busfreq_info *busfreq_info) {}
void imx6_up_lpddr2_freq_change(u32 freq, int bus_freq_mode) {}
#endif
#if !defined(CONFIG_SOC_IMX6ULL)
u32 mx6ull_lpm_wfi_start, mx6ull_lpm_wfi_end;
void imx6ull_low_power_idle(void) {}
#endif
#if !defined(CONFIG_SOC_IMX6Q)
u32 mx6_ddr3_freq_change_start, mx6_ddr3_freq_change_end;
u32 mx6q_lpddr2_freq_change_start, mx6q_lpddr2_freq_change_end;
u32 wfe_smp_freq_change_start, wfe_smp_freq_change_end;
void mx6_ddr3_freq_change(u32 freq, void *ddr_settings,
bool dll_mode, void *iomux_offsets) {}
void mx6q_lpddr2_freq_change(u32 freq, void *ddr_settings) {}
void wfe_smp_freq_change(u32 cpuid, u32 *ddr_freq_change_done) {}
#endif
#if !defined(CONFIG_SOC_IMX7D)
void imx7_smp_wfe(u32 cpuid, u32 ocram_base) {}
void imx7d_ddr3_freq_change(u32 freq) {}
#endif
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