/*
* ATI Rage XL Initialization. Support for Xpert98 and Victoria
* PCI cards.
*
* Copyright (C) 2002 MontaVista Software Inc.
* Author: MontaVista Software, Inc.
* stevel@mvista.com or source@mvista.com
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <asm/io.h>
#include <video/mach64.h>
#include "atyfb.h"
#define MPLL_GAIN 0xad
#define VPLL_GAIN 0xd5
enum {
VICTORIA = 0,
XPERT98,
NUM_XL_CARDS
};
extern const struct aty_pll_ops aty_pll_ct;
#define DEFAULT_CARD XPERT98
static int xl_card = DEFAULT_CARD;
static const struct xl_card_cfg_t {
int ref_crystal; // 10^4 Hz
int mem_type;
int mem_size;
u32 mem_cntl;
u32 ext_mem_cntl;
u32 mem_addr_config;
u32 bus_cntl;
u32 dac_cntl;
u32 hw_debug;
u32 custom_macro_cntl;
u8 dll2_cntl;
u8 pll_yclk_cntl;
} card_cfg[NUM_XL_CARDS] = {
// VICTORIA
{ 2700, SDRAM, 0x800000,
0x10757A3B, 0x64000C81, 0x00110202, 0x7b33A040,
0x82010102, 0x48803800, 0x005E0179,
0x50, 0x25
},
// XPERT98
{ 1432, WRAM, 0x800000,
0x00165A2B, 0xE0000CF1, 0x00200213, 0x7333A001,
0x8000000A, 0x48833800, 0x007F0779,
0x10, 0x19
}
};
typedef struct {
u8 lcd_reg;
u32 val;
} lcd_tbl_t;
static const lcd_tbl_t lcd_tbl[] = {
{ 0x01, 0x000520C0 },
{ 0x08, 0x02000408 },
{ 0x03, 0x00000F00 },
{ 0x00, 0x00000000 },
{ 0x02, 0x00000000 },
{ 0x04, 0x00000000 },
{ 0x05, 0x00000000 },
{ 0x06, 0x00000000 },
{ 0x33, 0x00000000 },
{ 0x34, 0x00000000 },
{ 0x35, 0x00000000 },
{ 0x36, 0x00000000 },
{ 0x37, 0x00000000 }
};
static void reset_gui(struct atyfb_par *par)
{
aty_st_8(GEN_TEST_CNTL+1, 0x01, par);
aty_st_8(GEN_TEST_CNTL+1, 0x00, par);
aty_st_8(GEN_TEST_CNTL+1, 0x02, par);
mdelay(5);
}
static void reset_sdram(struct atyfb_par *par)
{
u8 temp;
temp = aty_ld_8(EXT_MEM_CNTL, par);
temp |= 0x02;
aty_st_8(EXT_MEM_CNTL, temp, par); // MEM_SDRAM_RESET = 1b
temp |= 0x08;
aty_st_8(EXT_MEM_CNTL, temp, par); // MEM_CYC_TEST = 10b
temp |= 0x0c;
aty_st_8(EXT_MEM_CNTL, temp, par); // MEM_CYC_TEST = 11b
mdelay(5);
temp &= 0xf3;
aty_st_8(EXT_MEM_CNTL, temp, par); // MEM_CYC_TEST = 00b
temp &= 0xfd;
aty_st_8(EXT_MEM_CNTL, temp, par); // MEM_SDRAM_REST = 0b
mdelay(5);
}
static void init_dll(struct atyfb_par *par)
{
// enable DLL
aty_st_pll_ct(PLL_GEN_CNTL,
aty_ld_pll_ct(PLL_GEN_CNTL, par) & 0x7f,
par);
// reset DLL
aty_st_pll_ct(DLL_CNTL, 0x82, par);
aty_st_pll_ct(DLL_CNTL, 0xE2, par);
mdelay(5);
aty_st_pll_ct(DLL_CNTL, 0x82, par);
mdelay(6);
}
static void reset_clocks(struct atyfb_par *par, struct pll_ct *pll,
int hsync_enb)
{
reset_gui(par);
aty_st_pll_ct(MCLK_FB_DIV, pll->mclk_fb_div, par);
aty_st_pll_ct(SCLK_FB_DIV, pll->sclk_fb_div, par);
mdelay(15);
init_dll(par);
aty_st_8(GEN_TEST_CNTL+1, 0x00, par);
mdelay(5);
aty_st_8(CRTC_GEN_CNTL+3, 0x04, par);
mdelay(6);
reset_sdram(par);
aty_st_8(CRTC_GEN_CNTL+3,
hsync_enb ? 0x00 : 0x04, par);
aty_st_pll_ct(SPLL_CNTL2, pll->spll_cntl2, par);
aty_st_pll_ct(PLL_GEN_CNTL, pll->pll_gen_cntl, par);
aty_st_pll_ct(PLL_VCLK_CNTL, pll->pll_vclk_cntl, par);
}
int atyfb_xl_init(struct fb_info *info)
{
const struct xl_card_cfg_t * card = &card_cfg[xl_card];
struct atyfb_par *par = (struct atyfb_par *) info->par;
union aty_pll pll;
int err;
u32 temp;
aty_st_8(CONFIG_STAT0, 0x85, par);
mdelay(10);
/*
* The following needs to be set before the call
* to var_to_pll() below. They'll be re-set again
* to the same values in aty_init().
*/
par->ref_clk_per = 100000000UL/card->ref_crystal;
par->ram_type = card->mem_type;
info->fix.smem_len = card->mem_size;
if (xl_card == VICTORIA) {
// the MCLK, XCLK are 120MHz on victoria card
par->mclk_per = 1000000/120;
par->xclk_per = 1000000/120;
par->features &= ~M64F_MFB_FORCE_4;
}
/*
* Calculate mclk and xclk dividers, etc. The passed
* pixclock and bpp values don't matter yet, the vclk
* isn't programmed until later.
*/
if ((err = aty_pll_ct.var_to_pll(info, 39726, 8, &pll)))
return err;
aty_st_pll_ct(LVDS_CNTL0, 0x00, par);
aty_st_pll_ct(DLL2_CNTL, card->dll2_cntl, par);
aty_st_pll_ct(V2PLL_CNTL, 0x10, par);
aty_st_pll_ct(MPLL_CNTL, MPLL_GAIN, par);
aty_st_pll_ct(VPLL_CNTL, VPLL_GAIN, par);
aty_st_pll_ct(PLL_VCLK_CNTL, 0x00, par);
aty_st_pll_ct(VFC_CNTL, 0x1B, par);
aty_st_pll_ct(PLL_REF_DIV, pll.ct.pll_ref_div, par);
aty_st_pll_ct(PLL_EXT_CNTL, pll.ct.pll_ext_cntl, par);
aty_st_pll_ct(SPLL_CNTL2, 0x03, par);
aty_st_pll_ct(PLL_GEN_CNTL, 0x44, par);
reset_clocks(par, &pll.ct, 0);
mdelay(10);
aty_st_pll_ct(VCLK_POST_DIV, 0x03, par);
aty_st_pll_ct(VCLK0_FB_DIV, 0xDA, par);
aty_st_pll_ct(VCLK_POST_DIV, 0x0F, par);
aty_st_pll_ct(VCLK1_FB_DIV, 0xF5, par);
aty_st_pll_ct(VCLK_POST_DIV, 0x3F, par);
aty_st_pll_ct(PLL_EXT_CNTL, 0x40 | pll.ct.pll_ext_cntl, par);
aty_st_pll_ct(VCLK2_FB_DIV, 0x00, par);
aty_st_pll_ct(VCLK_POST_DIV, 0xFF, par);
aty_st_pll_ct(PLL_EXT_CNTL, 0xC0 | pll.ct.pll_ext_cntl, par);
aty_st_pll_ct(VCLK3_FB_DIV, 0x00, par);
aty_st_8(BUS_CNTL, 0x01, par);
aty_st_le32(BUS_CNTL, card->bus_cntl | 0x08000000, par);
aty_st_le32(CRTC_GEN_CNTL, 0x04000200, par);
aty_st_le16(CONFIG_STAT0, 0x0020, par);
aty_st_le32(MEM_CNTL, 0x10151A33, par);
aty_st_le32(EXT_MEM_CNTL, 0xE0000C01, par);
aty_st_le16(CRTC_GEN_CNTL+2, 0x0000, par);
aty_st_le32(DAC_CNTL, card->dac_cntl, par);
aty_st_le16(GEN_TEST_CNTL, 0x0100, par);
aty_st_le32(CUSTOM_MACRO_CNTL, 0x003C0171, par);
aty_st_le32(MEM_BUF_CNTL, 0x00382848, par);
aty_st_le32(HW_DEBUG, card->hw_debug, par);
aty_st_le16(MEM_ADDR_CONFIG, 0x0000, par);
aty_st_le16(GP_IO+2, 0x0000, par);
aty_st_le16(GEN_TEST_CNTL, 0x0000, par);
aty_st_le16(EXT_DAC_REGS+2, 0x0000, par);
aty_st_le32(CRTC_INT_CNTL, 0x00000000, par);
aty_st_le32(TIMER_CONFIG, 0x00000000, par);
aty_st_le32(0xEC, 0x00000000, par);
aty_st_le32(0xFC, 0x00000000, par);
#if defined (CONFIG_FB_ATY_GENERIC_LCD)
{
int i;
for (i = 0; i < ARRAY_SIZE(lcd_tbl); i++)
aty_st_lcd(lcd_tbl[i].lcd_reg, lcd_tbl[i].val, par);
}
#endif
aty_st_le16(CONFIG_STAT0, 0x00A4, par);
mdelay(10);
aty_st_8(BUS_CNTL+1, 0xA0, par);
mdelay(10);
reset_clocks(par, &pll.ct, 1);
mdelay(10);
// something about power management
aty_st_8(LCD_INDEX, 0x08, par);
aty_st_8(LCD_DATA, 0x0A, par);
aty_st_8(LCD_INDEX, 0x08, par);
aty_st_8(LCD_DATA+3, 0x02, par);
aty_st_8(LCD_INDEX, 0x08, par);
aty_st_8(LCD_DATA, 0x0B, par);
mdelay(2);
// enable display requests, enable CRTC
aty_st_8(CRTC_GEN_CNTL+3, 0x02, par);
// disable display
aty_st_8(CRTC_GEN_CNTL, 0x40, par);
// disable display requests, disable CRTC
aty_st_8(CRTC_GEN_CNTL+3, 0x04, par);
mdelay(10);
aty_st_pll_ct(PLL_YCLK_CNTL, 0x25, par);
aty_st_le16(CUSTOM_MACRO_CNTL, 0x0179, par);
aty_st_le16(CUSTOM_MACRO_CNTL+2, 0x005E, par);
aty_st_le16(CUSTOM_MACRO_CNTL+2, card->custom_macro_cntl>>16, par);
aty_st_8(CUSTOM_MACRO_CNTL+1,
(card->custom_macro_cntl>>8) & 0xff, par);
aty_st_le32(MEM_ADDR_CONFIG, card->mem_addr_config, par);
aty_st_le32(MEM_CNTL, card->mem_cntl, par);
aty_st_le32(EXT_MEM_CNTL, card->ext_mem_cntl, par);
aty_st_8(CONFIG_STAT0, 0xA0 | card->mem_type, par);
aty_st_pll_ct(PLL_YCLK_CNTL, 0x01, par);
mdelay(15);
aty_st_pll_ct(PLL_YCLK_CNTL, card->pll_yclk_cntl, par);
mdelay(1);
reset_clocks(par, &pll.ct, 0);
mdelay(50);
reset_clocks(par, &pll.ct, 0);
mdelay(50);
// enable extended register block
aty_st_8(BUS_CNTL+3, 0x7B, par);
mdelay(1);
// disable extended register block
aty_st_8(BUS_CNTL+3, 0x73, par);
aty_st_8(CONFIG_STAT0, 0x80 | card->mem_type, par);
// disable display requests, disable CRTC
aty_st_8(CRTC_GEN_CNTL+3, 0x04, par);
// disable mapping registers in VGA aperture
aty_st_8(CONFIG_CNTL, aty_ld_8(CONFIG_CNTL, par) & ~0x04, par);
mdelay(50);
// enable display requests, enable CRTC
aty_st_8(CRTC_GEN_CNTL+3, 0x02, par);
// make GPIO's 14,15,16 all inputs
aty_st_8(LCD_INDEX, 0x07, par);
aty_st_8(LCD_DATA+3, 0x00, par);
// enable the display
aty_st_8(CRTC_GEN_CNTL, 0x00, par);
mdelay(17);
// reset the memory controller
aty_st_8(GEN_TEST_CNTL+1, 0x02, par);
mdelay(15);
aty_st_8(GEN_TEST_CNTL+1, 0x00, par);
mdelay(30);
// enable extended register block
aty_st_8(BUS_CNTL+3,
(u8)(aty_ld_8(BUS_CNTL+3, par) | 0x08),
par);
// set FIFO size to 512 (PIO)
aty_st_le32(GUI_CNTL,
aty_ld_le32(GUI_CNTL, par) & ~0x3,
par);
// enable CRT and disable lcd
aty_st_8(LCD_INDEX, 0x01, par);
temp = aty_ld_le32(LCD_DATA, par);
temp = (temp | 0x01) & ~0x02;
aty_st_le32(LCD_DATA, temp, par);
return 0;
}
