79 lines
2.5 KiB
Diff
79 lines
2.5 KiB
Diff
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From: Gerd Hoffmann <kraxel@redhat.com>
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Date: Mon, 24 Jun 2019 13:35:46 +0200
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Subject: ati-vga: add rage128 edid support
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Git-commit: 020bc4fc5ce93107c8e1bc731b9802cee56a123e
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Bruce Rogers <brogers@suse.com>
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---
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vgasrc/atiext.c | 25 +++++++++++++++++++++++++
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1 file changed, 25 insertions(+)
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diff --git a/roms/seabios/vgasrc/atiext.c b/roms/seabios/vgasrc/atiext.c
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index 71dfa859a22dc569ed2fd1312c6b..69dfd46e550a8865734def85c62d 100644
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--- a/roms/seabios/vgasrc/atiext.c
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+++ b/roms/seabios/vgasrc/atiext.c
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@@ -21,6 +21,7 @@
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#define CRTC_EXT_CNTL 0x0054
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#define GPIO_VGA_DDC 0x0060
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#define GPIO_DVI_DDC 0x0064
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+#define GPIO_MONID 0x0068
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#define CRTC_H_TOTAL_DISP 0x0200
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#define CRTC_V_TOTAL_DISP 0x0208
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#define CRTC_OFFSET 0x0224
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@@ -47,6 +48,7 @@ static u32 ati_i2c_reg VAR16;
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static u32 ati_i2c_bit_scl_out VAR16;
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static u32 ati_i2c_bit_sda_out VAR16;
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static u32 ati_i2c_bit_sda_in VAR16;
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+static u32 ati_i2c_bit_enable VAR16 = -1;
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int
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@@ -208,8 +210,11 @@ ati_set_mode(struct vgamode_s *vmode_g, int flags)
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static void
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ati_i2c_set_scl_sda(int scl, int sda)
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{
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+ u32 enable = GET_GLOBAL(ati_i2c_bit_enable);
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u32 data = 0;
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+ if (enable != -1)
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+ data |= (1 << enable);
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if (!scl)
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data |= (1 << GET_GLOBAL(ati_i2c_bit_scl_out));
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if (!sda)
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@@ -316,6 +321,23 @@ static void ati_i2c_edid_radeon(void)
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dprintf(1, "ati: ... %s\n", valid ? "good" : "invalid");
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}
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+static void ati_i2c_edid_rage128(void)
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+{
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+ int valid;
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+
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+ SET_VGA(ati_i2c_bit_enable, 25);
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+ SET_VGA(ati_i2c_bit_scl_out, 18);
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+ SET_VGA(ati_i2c_bit_sda_out, 17);
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+ SET_VGA(ati_i2c_bit_sda_in, 9);
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+ SET_VGA(ati_i2c_reg, GPIO_MONID);
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+
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+ dprintf(1, "ati: reading edid blob (rage128) ... \n");
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+ ati_i2c_edid();
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+ valid = (GET_GLOBAL(VBE_edid[0]) == 0x00 &&
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+ GET_GLOBAL(VBE_edid[1]) == 0xff);
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+ dprintf(1, "ati: ... %s\n", valid ? "good" : "invalid");
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+}
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+
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/****************************************************************
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* init
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****************************************************************/
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@@ -379,6 +401,9 @@ ati_setup(void)
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u16 device = pci_config_readw(bdf, PCI_DEVICE_ID);
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switch (device) {
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+ case 0x5046:
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+ ati_i2c_edid_rage128();
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+ break;
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case 0x5159:
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ati_i2c_edid_radeon();
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break;
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