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mfd: wm5110: Make DSP memories readable

Expose the memory regions used by the DSP cores on WM5110 as readable
and volatile.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
hifive-unleashed-5.1
Charles Keepax 2013-11-19 16:04:00 +00:00 committed by Lee Jones
parent 5e01dc7b26
commit c50aa44db3
1 changed files with 65 additions and 4 deletions

View File

@ -14,6 +14,7 @@
#include <linux/mfd/arizona/core.h>
#include <linux/mfd/arizona/registers.h>
#include <linux/device.h>
#include "arizona.h"
@ -1336,6 +1337,64 @@ static const struct reg_default wm5110_reg_default[] = {
{ 0x00001404, 0x0000 }, /* R5124 - DSP4 Status 1 */
};
static bool wm5110_is_rev_b_adsp_memory(unsigned int reg)
{
if ((reg >= 0x100000 && reg < 0x103000) ||
(reg >= 0x180000 && reg < 0x181000) ||
(reg >= 0x190000 && reg < 0x192000) ||
(reg >= 0x1a8000 && reg < 0x1a9000) ||
(reg >= 0x200000 && reg < 0x209000) ||
(reg >= 0x280000 && reg < 0x281000) ||
(reg >= 0x290000 && reg < 0x29a000) ||
(reg >= 0x2a8000 && reg < 0x2aa000) ||
(reg >= 0x300000 && reg < 0x30f000) ||
(reg >= 0x380000 && reg < 0x382000) ||
(reg >= 0x390000 && reg < 0x39e000) ||
(reg >= 0x3a8000 && reg < 0x3b6000) ||
(reg >= 0x400000 && reg < 0x403000) ||
(reg >= 0x480000 && reg < 0x481000) ||
(reg >= 0x490000 && reg < 0x492000) ||
(reg >= 0x4a8000 && reg < 0x4a9000))
return true;
else
return false;
}
static bool wm5110_is_rev_d_adsp_memory(unsigned int reg)
{
if ((reg >= 0x100000 && reg < 0x106000) ||
(reg >= 0x180000 && reg < 0x182000) ||
(reg >= 0x190000 && reg < 0x198000) ||
(reg >= 0x1a8000 && reg < 0x1aa000) ||
(reg >= 0x200000 && reg < 0x20f000) ||
(reg >= 0x280000 && reg < 0x282000) ||
(reg >= 0x290000 && reg < 0x29c000) ||
(reg >= 0x2a6000 && reg < 0x2b4000) ||
(reg >= 0x300000 && reg < 0x30f000) ||
(reg >= 0x380000 && reg < 0x382000) ||
(reg >= 0x390000 && reg < 0x3a2000) ||
(reg >= 0x3a6000 && reg < 0x3b4000) ||
(reg >= 0x400000 && reg < 0x406000) ||
(reg >= 0x480000 && reg < 0x482000) ||
(reg >= 0x490000 && reg < 0x498000) ||
(reg >= 0x4a8000 && reg < 0x4aa000))
return true;
else
return false;
}
static bool wm5110_is_adsp_memory(struct device *dev, unsigned int reg)
{
struct arizona *arizona = dev_get_drvdata(dev);
switch (arizona->rev) {
case 0 ... 2:
return wm5110_is_rev_b_adsp_memory(reg);
default:
return wm5110_is_rev_d_adsp_memory(reg);
}
}
static bool wm5110_readable_register(struct device *dev, unsigned int reg)
{
switch (reg) {
@ -2308,7 +2367,7 @@ static bool wm5110_readable_register(struct device *dev, unsigned int reg)
case ARIZONA_DSP4_STATUS_3:
return true;
default:
return false;
return wm5110_is_adsp_memory(dev, reg);
}
}
@ -2368,16 +2427,18 @@ static bool wm5110_volatile_register(struct device *dev, unsigned int reg)
case ARIZONA_DSP4_STATUS_3:
return true;
default:
return false;
return wm5110_is_adsp_memory(dev, reg);
}
}
#define WM5110_MAX_REGISTER 0x4a9fff
const struct regmap_config wm5110_spi_regmap = {
.reg_bits = 32,
.pad_bits = 16,
.val_bits = 16,
.max_register = ARIZONA_DSP1_STATUS_2,
.max_register = WM5110_MAX_REGISTER,
.readable_reg = wm5110_readable_register,
.volatile_reg = wm5110_volatile_register,
@ -2391,7 +2452,7 @@ const struct regmap_config wm5110_i2c_regmap = {
.reg_bits = 32,
.val_bits = 16,
.max_register = ARIZONA_DSP1_STATUS_2,
.max_register = WM5110_MAX_REGISTER,
.readable_reg = wm5110_readable_register,
.volatile_reg = wm5110_volatile_register,