diff options
author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2009-03-14 15:52:42 +0000 |
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committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2009-03-14 15:52:42 +0000 |
commit | 26e3776a22bf894ced5af4c28968dc1dc99968eb (patch) | |
tree | 2d38a3789e27a423439c37a45a09cae31990a615 /target/linux/s3c24xx/patches-2.6.26/1180-fix-glamo-suspend-resume-dram-and-engines.patch.patch | |
parent | 4bd70fc26256cf485f19e0c8b881e078dc36134f (diff) |
nuke obsolete kernel stuff
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14875 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.26/1180-fix-glamo-suspend-resume-dram-and-engines.patch.patch')
-rwxr-xr-x | target/linux/s3c24xx/patches-2.6.26/1180-fix-glamo-suspend-resume-dram-and-engines.patch.patch | 431 |
1 files changed, 0 insertions, 431 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.26/1180-fix-glamo-suspend-resume-dram-and-engines.patch.patch b/target/linux/s3c24xx/patches-2.6.26/1180-fix-glamo-suspend-resume-dram-and-engines.patch.patch deleted file mode 100755 index 7759c065d..000000000 --- a/target/linux/s3c24xx/patches-2.6.26/1180-fix-glamo-suspend-resume-dram-and-engines.patch.patch +++ /dev/null @@ -1,431 +0,0 @@ -From 9ada9a3247ca02a0dddeae24a07a2744690aeb51 Mon Sep 17 00:00:00 2001 -From: Andy Green <andy@openmoko.com> -Date: Fri, 25 Jul 2008 23:06:15 +0100 -Subject: [PATCH] fix-glamo-suspend-resume-dram-and-engines.patch - -Two issues... we never took care to take down engines in suspend -and bring them back in resume. This was part of the display -corruption that could be seen briefly on resume. The other issue -that made the "noise" corruption was bad ordering of resume steps. - -This patch simplifies (removing needless re-init) resume actions -and makes explicit the suspend and resume steps. It also adds -code to track which engines are up and push them down in suspend -and bring them back in resume. - -The result is no more corruption of display buffer in suspend, it -comes back completely clean. - -Signed-off-by: Andy Green <andy@openmoko.com> ---- - drivers/mfd/glamo/glamo-core.c | 269 +++++++++++++++++++--------------------- - drivers/mfd/glamo/glamo-core.h | 2 + - drivers/mfd/glamo/glamo-regs.h | 6 +- - 3 files changed, 137 insertions(+), 140 deletions(-) - -diff --git a/drivers/mfd/glamo/glamo-core.c b/drivers/mfd/glamo/glamo-core.c -index d4b526d..ee33901 100644 ---- a/drivers/mfd/glamo/glamo-core.c -+++ b/drivers/mfd/glamo/glamo-core.c -@@ -54,6 +54,8 @@ - - #define RESSIZE(ressource) (((ressource)->end - (ressource)->start)+1) - -+#define GLAMO_MEM_REFRESH_COUNT 0x100 -+ - static struct glamo_core *glamo_handle; - - static inline void __reg_write(struct glamo_core *glamo, -@@ -381,9 +383,8 @@ out_unlock: - * 'engine' support - ***********************************************************************/ - --int glamo_engine_enable(struct glamo_core *glamo, enum glamo_engine engine) -+int __glamo_engine_enable(struct glamo_core *glamo, enum glamo_engine engine) - { -- spin_lock(&glamo->lock); - switch (engine) { - case GLAMO_ENGINE_LCD: - __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_LCD, -@@ -432,27 +433,59 @@ int glamo_engine_enable(struct glamo_core *glamo, enum glamo_engine engine) - default: - break; - } -- spin_unlock(&glamo->lock); -+ -+ glamo->engine_enabled_bitfield |= 1 << engine; - - return 0; - } --EXPORT_SYMBOL_GPL(glamo_engine_enable); - --int glamo_engine_disable(struct glamo_core *glamo, enum glamo_engine engine) -+int glamo_engine_enable(struct glamo_core *glamo, enum glamo_engine engine) - { -+ int ret; -+ - spin_lock(&glamo->lock); -+ -+ ret = __glamo_engine_enable(glamo, engine); -+ -+ spin_unlock(&glamo->lock); -+ -+ return ret; -+} -+EXPORT_SYMBOL_GPL(glamo_engine_enable); -+ -+int __glamo_engine_disable(struct glamo_core *glamo, enum glamo_engine engine) -+{ - switch (engine) { -+ case GLAMO_ENGINE_LCD: -+ /* remove pixel clock to LCM */ -+ __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_LCD, -+ GLAMO_CLOCK_LCD_EN_DCLK, 0); -+ __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_LCD, -+ GLAMO_CLOCK_LCD_EN_DHCLK | -+ GLAMO_CLOCK_LCD_EN_DMCLK, 0); -+ /* kill memory clock */ -+ __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_LCD, -+ GLAMO_CLOCK_LCD_EN_M5CLK, 0); -+ /* stop dividing the clocks */ -+ __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_GEN5_1, -+ GLAMO_CLOCK_GEN51_EN_DIV_DHCLK | -+ GLAMO_CLOCK_GEN51_EN_DIV_DMCLK | -+ GLAMO_CLOCK_GEN51_EN_DIV_DCLK, 0); -+ __reg_set_bit_mask(glamo, GLAMO_REG_HOSTBUS(2), -+ GLAMO_HOSTBUS2_MMIO_EN_LCD, 0); -+ break; -+ - case GLAMO_ENGINE_MMC: - __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_MMC, 0, - GLAMO_CLOCK_MMC_EN_M9CLK | - GLAMO_CLOCK_MMC_EN_TCLK | - GLAMO_CLOCK_MMC_DG_M9CLK | - GLAMO_CLOCK_MMC_DG_TCLK); -- __reg_set_bit_mask(glamo, GLAMO_REG_HOSTBUS(2), 0, -- GLAMO_HOSTBUS2_MMIO_EN_MMC); - /* disable the TCLK divider clk input */ - __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_GEN5_1, 0, - GLAMO_CLOCK_GEN51_EN_DIV_TCLK); -+ __reg_set_bit_mask(glamo, GLAMO_REG_HOSTBUS(2), 0, -+ GLAMO_HOSTBUS2_MMIO_EN_MMC); - /* good idea to hold the thing in reset when we power it off? */ - /* writew(readw(glamo->base + GLAMO_REG_CLOCK_MMC) | - GLAMO_CLOCK_MMC_RESET, glamo->base + GLAMO_REG_CLOCK_MMC); -@@ -461,10 +494,23 @@ int glamo_engine_disable(struct glamo_core *glamo, enum glamo_engine engine) - default: - break; - } -- spin_unlock(&glamo->lock); -+ -+ glamo->engine_enabled_bitfield &= ~(1 << engine); - - return 0; - } -+int glamo_engine_disable(struct glamo_core *glamo, enum glamo_engine engine) -+{ -+ int ret; -+ -+ spin_lock(&glamo->lock); -+ -+ ret = __glamo_engine_disable(glamo, engine); -+ -+ spin_unlock(&glamo->lock); -+ -+ return ret; -+} - EXPORT_SYMBOL_GPL(glamo_engine_disable); - - struct glamo_script reset_regs[] = { -@@ -618,7 +664,7 @@ int glamo_run_script(struct glamo_core *glamo, struct glamo_script *script, - if (may_sleep) - msleep(line->val); - else -- mdelay(line->val); -+ mdelay(line->val * 4); - break; - case 0xfffd: - /* spin until PLLs lock */ -@@ -717,111 +763,17 @@ static struct glamo_script glamo_init_script[] = { - { GLAMO_REG_CLOCK_MEMORY, 0x000b }, - }; - --static struct glamo_script glamo_resume_script[] = { -- { GLAMO_REG_IRQ_ENABLE, 0x01ff }, -- { GLAMO_REG_CLOCK_GEN6, 0x2000 }, -- { GLAMO_REG_CLOCK_GEN7, 0x0001 }, /* 0101 */ -- { GLAMO_REG_CLOCK_GEN8, 0x0100 }, -- { GLAMO_REG_CLOCK_HOST, 0x000d }, -- { 0x200, 0x0ef0 }, -- { 0x202, 0x07ff }, -- { 0x212, 0x0000 }, -- { 0x214, 0x4000 }, -- { 0x216, 0xf00e }, -- { GLAMO_REG_MEM_TYPE, 0x0874 }, /* 8MB, 16 word pg wr+rd */ -- { GLAMO_REG_MEM_GEN, 0xafaf }, /* 63 grants min + max */ -- -- { GLAMO_REG_MEM_TIMING1, 0x0108 }, -- { GLAMO_REG_MEM_TIMING2, 0x0010 }, /* Taa = 3 MCLK */ -- { GLAMO_REG_MEM_TIMING3, 0x0000 }, -- { GLAMO_REG_MEM_TIMING4, 0x0000 }, /* CE1# delay fall/rise */ -- { GLAMO_REG_MEM_TIMING5, 0x0000 }, /* UB# LB# */ -- { GLAMO_REG_MEM_TIMING6, 0x0000 }, /* OE# */ -- { GLAMO_REG_MEM_TIMING7, 0x0000 }, /* WE# */ -- { GLAMO_REG_MEM_TIMING8, 0x1002 }, /* MCLK delay, was 0x1000 */ -- { GLAMO_REG_MEM_TIMING9, 0x6006 }, -- { GLAMO_REG_MEM_TIMING10, 0x00ff }, -- { GLAMO_REG_MEM_TIMING11, 0x0001 }, -- { GLAMO_REG_MEM_POWER1, 0x0020 }, -- { GLAMO_REG_MEM_POWER2, 0x0000 }, -- { GLAMO_REG_MEM_DRAM1, 0x0000 }, -- { 0xfffe, 1 }, -- { GLAMO_REG_MEM_DRAM1, 0xc100 }, -- { 0xfffe, 1 }, -- { GLAMO_REG_MEM_DRAM1, 0xe100 }, -- { GLAMO_REG_MEM_DRAM2, 0x01d6 }, -- { GLAMO_REG_CLOCK_MEMORY, 0x000b }, --}; -- --#if 0 /* MM370 */ --static const struct glamo_script regs_vram_2mb = { -- { GLAMO_REG_CLOCK_MEMORY, 0x3aaa }, -- { 0xfffe, 50 }, -- { GLAMO_REG_CLOCK_MEMORY, 0x0aaa }, -- { 0xfffe, 3 }, -- { GLAMO_REG_MEM_POWER1, 0x0020 }, -- { 0x033a, 0x0000 }, -- { 0x033c, 0x0000 }, -- { 0x033e, 0x0000 }, -- { 0x0340, 0x0000 }, -- { 0x0342, 0x0000 }, -- { 0x0344, 0x0000 }, -- { 0x0346, 0x0240 }, -- { GLAMO_REG_MEM_TIMING8, 0x1016 }, -- { GLAMO_REG_MEM_TIMING9, 0x6067 }, -- { GLAMO_REG_MEM_TIMING10, 0x00ff }, -- { GLAMO_REG_MEM_TIMING11, 0x0030 }, -- { GLAMO_REG_MEM_GEN, 0x3fff }, -- { GLAMO_REG_MEM_GEN, 0xafaf }, -- { GLAMO_REG_MEM_TIMING1, 0x0108 }, -- { GLAMO_REG_MEM_TIMING2, 0x0010 }, -- { GLAMO_REG_MEM_DRAM1, 0x0a00 }, -- { 0xfffe, 3 }, -- { GLAMO_REG_MEM_DRAM1, 0xe200 }, -- { 0xfffe, 1 }, --}; -- --static const struct glamo_script regs_vram_8mb = { -- { GLAMO_REG_CLOCK_MEMORY, 0x3aaa }, -- { 0xfffe, 50 }, -- { GLAMO_REG_CLOCK_MEMORY, 0x0aaa }, -- { 0xfffe, 3 }, -- { GLAMO_REG_MEM_POWER1, 0x0020 }, -- { 0x033a, 0x45cf }, -- { 0x033c, 0x4240 }, -- { 0x033e, 0x53e0 }, -- { 0x0340, 0x1401 }, -- { 0x0342, 0x0c44 }, -- { 0x0344, 0x1d0b }, -- { 0x0346, 0x25ac }, -- { 0x0348, 0x1953 }, -- { 0xfffe, 1 }, -- { GLAMO_REG_MEM_TYPE, 0x087a }, -- { GLAMO_REG_MEM_DRAM2, 0x01d6 }, -- { GLAMO_REG_MEM_TIMING8, 0x1060 }, -- { GLAMO_REG_MEM_TIMING9, 0x6067 }, -- { GLAMO_REG_MEM_TIMING10, 0x00ff }, -- { GLAMO_REG_MEM_TIMING11, 0x0030 }, -- { GLAMO_REG_MEM_GEN, 0x3fff }, -- { GLAMO_REG_MEM_GEN, 0xafaf }, -- { GLAMO_REG_MEM_TIMING1, 0x3108 }, -- { GLAMO_REG_MEM_TIMING2, 0x0010 }, -- { GLAMO_REG_MEM_DRAM1, 0x0a00 }, -- { 0xfffe, 3 }, -- { GLAMO_REG_MEM_DRAM1, 0xe200 }, -- { 0xfffe, 1 }, --}; --#endif - - enum glamo_power { - GLAMO_POWER_ON, -- GLAMO_POWER_STANDBY, - GLAMO_POWER_SUSPEND, - }; - - static void glamo_power(struct glamo_core *glamo, - enum glamo_power new_state) - { -+ int n; -+ - spin_lock(&glamo->lock); - - dev_dbg(&glamo->pdev->dev, "***** glamo_power -> %d\n", new_state); -@@ -836,37 +788,76 @@ static void glamo_power(struct glamo_core *glamo, - while ((__reg_read(glamo, GLAMO_REG_PLL_GEN5) & 3) != 3) - ; - -- /* enable memory clock and get it out of deep pwrdown */ -- __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_MEMORY, -- GLAMO_CLOCK_MEM_EN_MOCACLK, 0xffff); -- __reg_set_bit_mask(glamo, GLAMO_REG_MEM_DRAM2, -- GLAMO_MEM_DRAM2_DEEP_PWRDOWN, 0x0000); -- __reg_set_bit_mask(glamo, GLAMO_REG_MEM_DRAM1, -- GLAMO_MEM_DRAM1_SELF_REFRESH, 0x0000); -- -- glamo_run_script(glamo, glamo_resume_script, -- ARRAY_SIZE(glamo_resume_script), 0); -- -- break; -- -- case GLAMO_POWER_STANDBY: -- /* enable memory self-refresh */ -- __reg_set_bit_mask(glamo, GLAMO_REG_MEM_DRAM1, -- GLAMO_MEM_DRAM1_SELF_REFRESH, 0xffff); -- /* stop memory clock */ -- __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_MEMORY, -- GLAMO_CLOCK_MEM_EN_MOCACLK, 0x0000); -- /* power down PLL2 and then PLL1 */ -- __reg_set_bit_mask(glamo, GLAMO_REG_PLL_GEN3, 0x2000, 0xffff); -- __reg_set_bit_mask(glamo, GLAMO_REG_DFT_GEN5, 0x0001, 0xffff); -+ /* Get memory out of deep powerdown */ -+ -+ __reg_write(glamo, GLAMO_REG_MEM_DRAM2, -+ (7 << 6) | /* tRC */ -+ (1 << 4) | /* tRP */ -+ (1 << 2) | /* tRCD */ -+ 2); /* CAS latency */ -+ -+ /* Stop self-refresh */ -+ -+ __reg_write(glamo, GLAMO_REG_MEM_DRAM1, -+ GLAMO_MEM_DRAM1_EN_DRAM_REFRESH | -+ GLAMO_MEM_DRAM1_EN_GATE_CKE | -+ GLAMO_MEM_REFRESH_COUNT); -+ __reg_write(glamo, GLAMO_REG_MEM_DRAM1, -+ GLAMO_MEM_DRAM1_EN_MODEREG_SET | -+ GLAMO_MEM_DRAM1_EN_DRAM_REFRESH | -+ GLAMO_MEM_DRAM1_EN_GATE_CKE | -+ GLAMO_MEM_REFRESH_COUNT); -+ -+ /* re-enable clocks to memory */ -+ -+ __reg_write(glamo, GLAMO_REG_CLOCK_MEMORY, -+ GLAMO_CLOCK_MEM_EN_MOCACLK | -+ GLAMO_CLOCK_MEM_EN_M1CLK | -+ GLAMO_CLOCK_MEM_DG_M1CLK); -+ -+ /* restore each engine that was up before suspend */ -+ for (n = 0; n < __NUM_GLAMO_ENGINES; n++) -+ if (glamo->engine_enabled_bitfield_suspend & (1 << n)) -+ __glamo_engine_enable(glamo, n); - break; - - case GLAMO_POWER_SUSPEND: -- __reg_set_bit_mask(glamo, GLAMO_REG_MEM_DRAM2, -- GLAMO_MEM_DRAM2_DEEP_PWRDOWN, 0xffff); -- /* stop memory clock */ -- __reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_MEMORY, -- GLAMO_CLOCK_MEM_EN_MOCACLK, 0x0000); -+ /* stash a copy of which engines were running */ -+ glamo->engine_enabled_bitfield_suspend = -+ glamo->engine_enabled_bitfield; -+ -+ /* take down each engine before we kill mem and pll */ -+ for (n = 0; n < __NUM_GLAMO_ENGINES; n++) -+ if (glamo->engine_enabled_bitfield & (1 << n)) -+ __glamo_engine_disable(glamo, n); -+ -+ /* enable self-refresh */ -+ -+ __reg_write(glamo, GLAMO_REG_MEM_DRAM1, -+ GLAMO_MEM_DRAM1_EN_DRAM_REFRESH | -+ GLAMO_MEM_DRAM1_EN_GATE_CKE | -+ GLAMO_MEM_DRAM1_SELF_REFRESH | -+ GLAMO_MEM_REFRESH_COUNT); -+ __reg_write(glamo, GLAMO_REG_MEM_DRAM1, -+ GLAMO_MEM_DRAM1_EN_MODEREG_SET | -+ GLAMO_MEM_DRAM1_EN_DRAM_REFRESH | -+ GLAMO_MEM_DRAM1_EN_GATE_CKE | -+ GLAMO_MEM_DRAM1_SELF_REFRESH | -+ GLAMO_MEM_REFRESH_COUNT); -+ -+ /* force RAM into deep powerdown */ -+ -+ __reg_write(glamo, GLAMO_REG_MEM_DRAM2, -+ GLAMO_MEM_DRAM2_DEEP_PWRDOWN | -+ (7 << 6) | /* tRC */ -+ (1 << 4) | /* tRP */ -+ (1 << 2) | /* tRCD */ -+ 2); /* CAS latency */ -+ -+ /* kill clocks to memory */ -+ -+ __reg_write(glamo, GLAMO_REG_CLOCK_MEMORY, 0); -+ - /* power down PLL2 and then PLL1 */ - __reg_set_bit_mask(glamo, GLAMO_REG_PLL_GEN3, 0x2000, 0xffff); - __reg_set_bit_mask(glamo, GLAMO_REG_DFT_GEN5, 0x0001, 0xffff); -@@ -1016,15 +1007,15 @@ static ssize_t regs_read(struct device *dev, struct device_attribute *attr, - char * name; - }; - struct reg_range reg_range[] = { --/* { 0x0000, 0x200, "General" }, -- { 0x0200, 0x100, "Host Bus" }, -- { 0x0300, 0x100, "Memory" }, -- { 0x0400, 0x100, "Sensor" }, -+ { 0x0000, 0x76, "General" }, -+/* { 0x0200, 0x100, "Host Bus" }, -+*/ { 0x0300, 0x38, "Memory" }, -+/* { 0x0400, 0x100, "Sensor" }, - { 0x0500, 0x300, "ISP" }, - { 0x0800, 0x400, "JPEG" }, - { 0x0c00, 0x500, "MPEG" }, - */ -- { 0x1100, 0x400, "LCD" }, -+ { 0x1100, 0x88, "LCD" }, - /* - { 0x1500, 0x080, "MPU 0" }, - { 0x1580, 0x080, "MPU 1" }, -@@ -1039,7 +1030,7 @@ static ssize_t regs_read(struct device *dev, struct device_attribute *attr, - - for (r = 0; r < ARRAY_SIZE(reg_range); r++) { - n1 = 0; -- end += sprintf(end, "\n%s\n\n", reg_range[r].name); -+ end += sprintf(end, "\n%s\n", reg_range[r].name); - for (n = reg_range[r].start; - n < reg_range[r].start + reg_range[r].count; n += 2) { - if (((n1++) & 7) == 0) -diff --git a/drivers/mfd/glamo/glamo-core.h b/drivers/mfd/glamo/glamo-core.h -index b1531b3..c89f810 100644 ---- a/drivers/mfd/glamo/glamo-core.h -+++ b/drivers/mfd/glamo/glamo-core.h -@@ -30,6 +30,8 @@ struct glamo_core { - u_int16_t revision; - spinlock_t lock; - struct resume_dependency resume_dependency; -+ u32 engine_enabled_bitfield; -+ u32 engine_enabled_bitfield_suspend; - }; - - struct glamo_script { -diff --git a/drivers/mfd/glamo/glamo-regs.h b/drivers/mfd/glamo/glamo-regs.h -index 32411e3..2328b8a 100644 ---- a/drivers/mfd/glamo/glamo-regs.h -+++ b/drivers/mfd/glamo/glamo-regs.h -@@ -142,8 +142,12 @@ enum glamo_register_mem { - #define GLAMO_MEM_TYPE_MASK 0x03 - - enum glamo_reg_mem_dram1 { -- GLAMO_MEM_DRAM1_EN_SDRAM_CLK = (1 << 11), -+ /* b0 - b10 == refresh period, 1 -> 2048 clocks */ -+ GLAMO_MEM_DRAM1_EN_GATE_CLK = (1 << 11), - GLAMO_MEM_DRAM1_SELF_REFRESH = (1 << 12), -+ GLAMO_MEM_DRAM1_EN_GATE_CKE = (1 << 13), -+ GLAMO_MEM_DRAM1_EN_DRAM_REFRESH = (1 << 14), -+ GLAMO_MEM_DRAM1_EN_MODEREG_SET = (1 << 15), - }; - - enum glamo_reg_mem_dram2 { --- -1.5.6.3 - |