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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-08-09 06:14:34 +02:00
Thomas Zimmermann
392993767d
SDRAM registers are located in the memory range at [0x1e160000, 0x1e160fff]. Refer to them with constants named AST_REG_MCR<n>, where n is the byte offset into the range. Replacing the magic values in the ast driver was done with grep and sed as shown below git grep -l \,\ 0x1e6e00 | xargs sed -i -e 's/, 0x1e6e00/, AST_REG_MCR/g' git grep -l \,\ 0x1E6E00 | xargs sed -i -e 's/, 0x1E6E00/, AST_REG_MCR/g' plus some manual fixes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patch.msgid.link/20260327133532.79696-5-tzimmermann@suse.de
92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
/*
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* Copyright 2012 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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*/
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/*
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* Authors: Dave Airlie <airlied@redhat.com>
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*/
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#include <linux/delay.h>
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#include <linux/pci.h>
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#include <drm/drm_print.h>
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#include "ast_drv.h"
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#include "ast_post.h"
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int ast_post_gpu(struct ast_device *ast)
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{
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int ret;
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if (AST_GEN(ast) >= 7) {
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ret = ast_2600_post(ast);
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if (ret)
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return ret;
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} else if (AST_GEN(ast) >= 6) {
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ret = ast_2500_post(ast);
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if (ret)
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return ret;
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} else if (AST_GEN(ast) >= 4) {
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ret = ast_2300_post(ast);
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if (ret)
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return ret;
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} else if (AST_GEN(ast) >= 2) {
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ret = ast_2100_post(ast);
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if (ret)
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return ret;
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} else {
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ret = ast_2000_post(ast);
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if (ret)
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return ret;
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}
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return 0;
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}
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#define TIMEOUT 5000000
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bool mmc_test(struct ast_device *ast, u32 datagen, u8 test_ctl)
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{
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u32 data, timeout;
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ast_moutdwm(ast, AST_REG_MCR70, 0x00000000);
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ast_moutdwm(ast, AST_REG_MCR70, (datagen << 3) | test_ctl);
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timeout = 0;
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do {
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data = ast_mindwm(ast, AST_REG_MCR70) & 0x3000;
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if (data & 0x2000)
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return false;
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if (++timeout > TIMEOUT) {
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ast_moutdwm(ast, AST_REG_MCR70, 0x00000000);
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return false;
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}
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} while (!data);
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ast_moutdwm(ast, AST_REG_MCR70, 0x0);
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return true;
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}
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bool mmc_test_burst(struct ast_device *ast, u32 datagen)
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{
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return mmc_test(ast, datagen, 0xc1);
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}
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