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/*
* Copyright 2012 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
*/
/*
* Authors: Dave Airlie <airlied@redhat.com>
*/
#include <linux/delay.h>
#include <linux/pci.h>
#include <drm/drm_print.h>
#include "ast_drv.h"
#include "ast_post.h"
u32 __ast_mindwm(void __iomem *regs, u32 r)
{
u32 data;
__ast_write32(regs, 0xf004, r & 0xffff0000);
__ast_write32(regs, 0xf000, 0x1);
do {
data = __ast_read32(regs, 0xf004) & 0xffff0000;
} while (data != (r & 0xffff0000));
return __ast_read32(regs, 0x10000 + (r & 0x0000ffff));
}
void __ast_moutdwm(void __iomem *regs, u32 r, u32 v)
{
u32 data;
__ast_write32(regs, 0xf004, r & 0xffff0000);
__ast_write32(regs, 0xf000, 0x1);
do {
data = __ast_read32(regs, 0xf004) & 0xffff0000;
} while (data != (r & 0xffff0000));
__ast_write32(regs, 0x10000 + (r & 0x0000ffff), v);
}
u32 ast_mindwm(struct ast_device *ast, u32 r)
{
return __ast_mindwm(ast->regs, r);
}
void ast_moutdwm(struct ast_device *ast, u32 r, u32 v)
{
__ast_moutdwm(ast->regs, r, v);
}
int ast_post_gpu(struct ast_device *ast)
{
int ret;
if (AST_GEN(ast) >= 7) {
ret = ast_2600_post(ast);
if (ret)
return ret;
} else if (AST_GEN(ast) >= 6) {
ret = ast_2500_post(ast);
if (ret)
return ret;
} else if (AST_GEN(ast) >= 4) {
ret = ast_2300_post(ast);
if (ret)
return ret;
} else if (AST_GEN(ast) >= 2) {
ret = ast_2100_post(ast);
if (ret)
return ret;
} else {
ret = ast_2000_post(ast);
if (ret)
return ret;
}
return 0;
}
#define TIMEOUT 5000000
bool mmc_test(struct ast_device *ast, u32 datagen, u8 test_ctl)
{
u32 data, timeout;
ast_moutdwm(ast, 0x1e6e0070, 0x00000000);
ast_moutdwm(ast, 0x1e6e0070, (datagen << 3) | test_ctl);
timeout = 0;
do {
data = ast_mindwm(ast, 0x1e6e0070) & 0x3000;
if (data & 0x2000)
return false;
if (++timeout > TIMEOUT) {
ast_moutdwm(ast, 0x1e6e0070, 0x00000000);
return false;
}
} while (!data);
ast_moutdwm(ast, 0x1e6e0070, 0x0);
return true;
}
bool mmc_test_burst(struct ast_device *ast, u32 datagen)
{
return mmc_test(ast, datagen, 0xc1);
}
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