Release 4.11 arch/arm/mach-davinci/common.c
/*
* Code commons to all DaVinci SoCs.
*
* Author: Mark A. Greer <mgreer@mvista.com>
*
* 2009 (c) MontaVista Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#include <linux/module.h>
#include <linux/io.h>
#include <linux/etherdevice.h>
#include <linux/davinci_emac.h>
#include <linux/dma-mapping.h>
#include <asm/tlb.h>
#include <asm/mach/map.h>
#include <mach/common.h>
#include <mach/cputype.h>
#include "clock.h"
struct davinci_soc_info davinci_soc_info;
EXPORT_SYMBOL(davinci_soc_info);
void __iomem *davinci_intc_base;
int davinci_intc_type;
void davinci_get_mac_addr(struct nvmem_device *nvmem, void *context)
{
char *mac_addr = davinci_soc_info.emac_pdata->mac_addr;
off_t offset = (off_t)context;
if (!IS_BUILTIN(CONFIG_NVMEM)) {
pr_warn("Cannot read MAC addr from EEPROM without CONFIG_NVMEM\n");
return;
}
/* Read MAC addr from EEPROM */
if (nvmem_device_read(nvmem, offset, ETH_ALEN, mac_addr) == ETH_ALEN)
pr_info("Read MAC addr from EEPROM: %pM\n", mac_addr);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Mark A. Greer | 49 | 69.01% | 1 | 33.33% |
| Arnd Bergmann | 16 | 22.54% | 1 | 33.33% |
| Andrew Lunn | 6 | 8.45% | 1 | 33.33% |
| Total | 71 | 100.00% | 3 | 100.00% |
static int __init davinci_init_id(struct davinci_soc_info *soc_info)
{
int i;
struct davinci_id *dip;
u8 variant;
u16 part_no;
void __iomem *base;
base = ioremap(soc_info->jtag_id_reg, SZ_4K);
if (!base) {
pr_err("Unable to map JTAG ID register\n");
return -ENOMEM;
}
soc_info->jtag_id = __raw_readl(base);
iounmap(base);
variant = (soc_info->jtag_id & 0xf0000000) >> 28;
part_no = (soc_info->jtag_id & 0x0ffff000) >> 12;
for (i = 0, dip = soc_info->ids; i < soc_info->ids_num;
i++, dip++)
/* Don't care about the manufacturer right now */
if ((dip->part_no == part_no) && (dip->variant == variant)) {
soc_info->cpu_id = dip->cpu_id;
pr_info("DaVinci %s variant 0x%x\n", dip->name,
dip->variant);
return 0;
}
pr_err("Unknown DaVinci JTAG ID 0x%x\n", soc_info->jtag_id);
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Cyril Chemparathy | 104 | 58.43% | 1 | 50.00% |
| Mark A. Greer | 74 | 41.57% | 1 | 50.00% |
| Total | 178 | 100.00% | 2 | 100.00% |
void __init davinci_common_init(struct davinci_soc_info *soc_info)
{
int ret;
if (!soc_info) {
ret = -EINVAL;
goto err;
}
memcpy(&davinci_soc_info, soc_info, sizeof(struct davinci_soc_info));
if (davinci_soc_info.io_desc && (davinci_soc_info.io_desc_num > 0))
iotable_init(davinci_soc_info.io_desc,
davinci_soc_info.io_desc_num);
/*
* Normally devicemaps_init() would flush caches and tlb after
* mdesc->map_io(), but we must also do it here because of the CPU
* revision check below.
*/
local_flush_tlb_all();
flush_cache_all();
/*
* We want to check CPU revision early for cpu_is_xxxx() macros.
* IO space mapping must be initialized before we can do that.
*/
ret = davinci_init_id(&davinci_soc_info);
if (ret < 0)
goto err;
return;
err:
panic("davinci_common_init: SoC Initialization failed\n");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Mark A. Greer | 94 | 93.07% | 2 | 50.00% |
| Cyril Chemparathy | 6 | 5.94% | 1 | 25.00% |
| Sekhar Nori | 1 | 0.99% | 1 | 25.00% |
| Total | 101 | 100.00% | 4 | 100.00% |
void __init davinci_init_late(void)
{
davinci_cpufreq_init();
davinci_clk_disable_unused();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shawn Guo | 14 | 100.00% | 1 | 100.00% |
| Total | 14 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Mark A. Greer | 257 | 62.38% | 6 | 46.15% |
| Cyril Chemparathy | 110 | 26.70% | 1 | 7.69% |
| Arnd Bergmann | 16 | 3.88% | 1 | 7.69% |
| Shawn Guo | 14 | 3.40% | 1 | 7.69% |
| Andrew Lunn | 6 | 1.46% | 1 | 7.69% |
| Sriramakrishnan Govindarajan | 5 | 1.21% | 1 | 7.69% |
| Jon Medhurst (Tixy) | 3 | 0.73% | 1 | 7.69% |
| Sekhar Nori | 1 | 0.24% | 1 | 7.69% |
| Total | 412 | 100.00% | 13 | 100.00% |
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