diff options
Diffstat (limited to 'recipes/linux/linux-openmoko-2.6.31/0003-Work-on-Glamo-core-for-DRM.patch')
-rw-r--r-- | recipes/linux/linux-openmoko-2.6.31/0003-Work-on-Glamo-core-for-DRM.patch | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/recipes/linux/linux-openmoko-2.6.31/0003-Work-on-Glamo-core-for-DRM.patch b/recipes/linux/linux-openmoko-2.6.31/0003-Work-on-Glamo-core-for-DRM.patch new file mode 100644 index 0000000000..76223ed136 --- /dev/null +++ b/recipes/linux/linux-openmoko-2.6.31/0003-Work-on-Glamo-core-for-DRM.patch @@ -0,0 +1,252 @@ +From 50c9919c9bc7d3e1db72dcbdd62d73efad409720 Mon Sep 17 00:00:00 2001 +From: Thomas White <taw@bitwiz.org.uk> +Date: Tue, 17 Nov 2009 23:45:29 +0100 +Subject: [PATCH 3/4] Work on Glamo-core for DRM + +This adds modifications to the core of the Glamo driver to expose functionality +to support DRM and KMS. + +Signed-off-by: Thomas White <taw@bitwiz.org.uk> +--- + drivers/mfd/glamo/glamo-core.c | 85 +++++++++++++++++++++++++++++++++++++--- + drivers/mfd/glamo/glamo-core.h | 45 ++++++++++++++++----- + drivers/mfd/glamo/glamo-regs.h | 24 +++++++++++ + include/linux/mfd/glamo.h | 7 +-- + 4 files changed, 140 insertions(+), 21 deletions(-) + +diff --git a/drivers/mfd/glamo/glamo-core.c b/drivers/mfd/glamo/glamo-core.c +index e0e3940..32aeff1 100644 +--- a/drivers/mfd/glamo/glamo-core.c ++++ b/drivers/mfd/glamo/glamo-core.c +@@ -221,10 +221,31 @@ static struct resource glamo_fb_resources[] = { + .flags = IORESOURCE_MEM, + }, { + .name = "glamo-fb-mem", +- .start = GLAMO_OFFSET_FB, +- .end = GLAMO_OFFSET_FB + GLAMO_FB_SIZE - 1, ++ .start = GLAMO_MEM_BASE + GLAMO_OFFSET_FB, ++ .end = GLAMO_MEM_BASE + GLAMO_OFFSET_FB + GLAMO_FB_SIZE - 1, + .flags = IORESOURCE_MEM, +- }, ++ }, { ++ .name = "glamo-cmdq-regs", ++ .start = GLAMO_REGOFS_CMDQUEUE, ++ .end = GLAMO_REGOFS_RISC - 1, ++ .flags = IORESOURCE_MEM, ++ }, { ++ .name = "glamo-command-queue", ++ .start = GLAMO_MEM_BASE + GLAMO_OFFSET_CMDQ, ++ .end = GLAMO_MEM_BASE + GLAMO_OFFSET_CMDQ + ++ GLAMO_CMDQ_SIZE - 1, ++ .flags = IORESOURCE_MEM, ++ }, { ++ .name = "glamo-2d-regs", ++ .start = GLAMO_REGOFS_2D, ++ .end = GLAMO_REGOFS_3D- 1, ++ .flags = IORESOURCE_MEM, ++ }, { ++ .name = "glamo-2d-irq", ++ .start = GLAMO_IRQ_2D, ++ .end = GLAMO_IRQ_2D, ++ .flags = IORESOURCE_IRQ, ++ } + }; + + static struct resource glamo_mmc_resources[] = { +@@ -235,9 +256,9 @@ static struct resource glamo_mmc_resources[] = { + .flags = IORESOURCE_MEM + }, { + .name = "glamo-mmc-mem", +- .start = GLAMO_OFFSET_FB + GLAMO_FB_SIZE, +- .end = GLAMO_OFFSET_FB + GLAMO_FB_SIZE + +- GLAMO_MMC_BUFFER_SIZE - 1, ++ .start = GLAMO_MEM_BASE + GLAMO_OFFSET_MMC, ++ .end = GLAMO_MEM_BASE + GLAMO_OFFSET_MMC ++ + GLAMO_MMC_BUFFER_SIZE - 1, + .flags = IORESOURCE_MEM + }, { + .start = GLAMO_IRQ_MMC, +@@ -354,6 +375,24 @@ static void glamo_irq_demux_handler(unsigned int irq, struct irq_desc *desc) + sysfs + */ + ++void glamo_clear_irq(struct glamo_core *glamo, unsigned int irq) ++{ ++ /* set interrupt source */ ++ __reg_write(glamo, GLAMO_REG_IRQ_CLEAR, irq); ++} ++ ++ ++void glamo_enable_irq(struct glamo_core *glamo, unsigned int irq) ++{ ++ u_int16_t tmp; ++ ++ /* set bit in enable register */ ++ tmp = __reg_read(glamo, GLAMO_REG_IRQ_ENABLE); ++ tmp |= irq; ++ __reg_write(glamo, GLAMO_REG_IRQ_ENABLE, tmp); ++} ++ ++ + static ssize_t regs_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) + { +@@ -579,6 +618,40 @@ int glamo_engine_disable(struct glamo_core *glamo, enum glamo_engine engine) + } + EXPORT_SYMBOL_GPL(glamo_engine_disable); + ++ ++static const u_int16_t engine_clock_regs[__NUM_GLAMO_ENGINES] = { ++ [GLAMO_ENGINE_LCD] = GLAMO_REG_CLOCK_LCD, ++ [GLAMO_ENGINE_MMC] = GLAMO_REG_CLOCK_MMC, ++ [GLAMO_ENGINE_ISP] = GLAMO_REG_CLOCK_ISP, ++ [GLAMO_ENGINE_JPEG] = GLAMO_REG_CLOCK_JPEG, ++ [GLAMO_ENGINE_3D] = GLAMO_REG_CLOCK_3D, ++ [GLAMO_ENGINE_2D] = GLAMO_REG_CLOCK_2D, ++ [GLAMO_ENGINE_MPEG_ENC] = GLAMO_REG_CLOCK_MPEG, ++ [GLAMO_ENGINE_MPEG_DEC] = GLAMO_REG_CLOCK_MPEG, ++}; ++ ++void glamo_engine_clkreg_set(struct glamo_core *glamo, ++ enum glamo_engine engine, ++ u_int16_t mask, u_int16_t val) ++{ ++ reg_set_bit_mask(glamo, engine_clock_regs[engine], mask, val); ++} ++EXPORT_SYMBOL_GPL(glamo_engine_clkreg_set); ++ ++u_int16_t glamo_engine_clkreg_get(struct glamo_core *glamo, ++ enum glamo_engine engine) ++{ ++ u_int16_t val; ++ ++ spin_lock(&glamo->lock); ++ val = __reg_read(glamo, engine_clock_regs[engine]); ++ spin_unlock(&glamo->lock); ++ ++ return val; ++} ++EXPORT_SYMBOL_GPL(glamo_engine_clkreg_get); ++ ++ + int __glamo_engine_suspend(struct glamo_core *glamo, enum glamo_engine engine) + { + int i; +diff --git a/drivers/mfd/glamo/glamo-core.h b/drivers/mfd/glamo/glamo-core.h +index e5b1a35..ea6caa3 100644 +--- a/drivers/mfd/glamo/glamo-core.h ++++ b/drivers/mfd/glamo/glamo-core.h +@@ -3,18 +3,33 @@ + + #include <linux/mfd/glamo.h> + ++/* Amount of Glamo memory */ ++#define GLAMO_INTERNAL_RAM_SIZE 0x800000 ++ ++/* Arbitrarily determined amount for the hardware cursor */ ++#define GLAMO_CURSOR_SIZE (4096) ++#define GLAMO_MMC_BUFFER_SIZE (64 * 1024) /* 64k MMC buffer */ ++#define GLAMO_CMDQ_SIZE (128 * 1024) /* 128k ring buffer */ ++/* Remaining memory will be used for 2D and 3D graphics */ ++#define GLAMO_FB_SIZE (GLAMO_INTERNAL_RAM_SIZE \ ++ - GLAMO_CURSOR_SIZE \ ++ - GLAMO_MMC_BUFFER_SIZE \ ++ - GLAMO_CMDQ_SIZE) ++/* A 640x480, 16bpp, double-buffered framebuffer */ ++#if (GLAMO_FB_SIZE < (640 * 480 * 4)) /* == 0x12c000 */ ++#error Not enough Glamo VRAM for framebuffer! ++#endif ++ + /* for the time being, we put the on-screen framebuffer into the lowest + * VRAM space. This should make the code easily compatible with the various +- * 2MB/4MB/8MB variants of the Smedia chips */ +-#define GLAMO_OFFSET_VRAM 0x800000 +-#define GLAMO_OFFSET_FB (GLAMO_OFFSET_VRAM) +- +-/* we only allocate the minimum possible size for the framebuffer to make +- * sure we have sufficient memory for other functions of the chip */ +-/*#define GLAMO_FB_SIZE (640*480*4) *//* == 0x12c000 */ +-#define GLAMO_INTERNAL_RAM_SIZE 0x800000 +-#define GLAMO_MMC_BUFFER_SIZE (64 * 1024) +-#define GLAMO_FB_SIZE (GLAMO_INTERNAL_RAM_SIZE - GLAMO_MMC_BUFFER_SIZE) ++ * 2MB/4MB/8MB variants of the Smedia chips ++ * glamo-fb.c assumes FB comes first, followed by cursor, so DON'T MOVE THEM ++ * (see glamo_regs[] in glamo-fb.c for more information) */ ++#define GLAMO_MEM_BASE (0x800000) ++#define GLAMO_OFFSET_FB (0x000000) ++#define GLAMO_OFFSET_CURSOR (GLAMO_OFFSET_FB + GLAMO_FB_SIZE) ++#define GLAMO_OFFSET_MMC (GLAMO_OFFSET_CURSOR + GLAMO_CURSOR_SIZE) ++#define GLAMO_OFFSET_CMDQ (GLAMO_OFFSET_MMC + GLAMO_MMC_BUFFER_SIZE) + + enum glamo_pll { + GLAMO_PLL1, +@@ -57,4 +72,14 @@ void glamo_reg_read_batch(struct glamo_core *glamo, uint16_t reg, + uint16_t count, uint16_t *values); + void glamo_reg_write_batch(struct glamo_core *glamo, uint16_t reg, + uint16_t count, uint16_t *values); ++void glamo_engine_clkreg_set(struct glamo_core *glamo, ++ enum glamo_engine engine, ++ u_int16_t mask, u_int16_t val); ++ ++extern void glamo_clear_irq(struct glamo_core *glamo, unsigned int irq); ++extern void glamo_enable_irq(struct glamo_core *glamo, unsigned int irq); ++ ++u_int16_t glamo_engine_clkreg_get(struct glamo_core *glamo, ++ enum glamo_engine engine); ++ + #endif /* __GLAMO_CORE_H */ +diff --git a/drivers/mfd/glamo/glamo-regs.h b/drivers/mfd/glamo/glamo-regs.h +index 59848e1..8b2fd47 100644 +--- a/drivers/mfd/glamo/glamo-regs.h ++++ b/drivers/mfd/glamo/glamo-regs.h +@@ -627,4 +627,28 @@ enum glamo_core_revisions { + GLAMO_CORE_REV_A3 = 0x0003, + }; + ++enum glamo_register_cq { ++ GLAMO_REG_CMDQ_BASE_ADDRL = 0x00, ++ GLAMO_REG_CMDQ_BASE_ADDRH = 0x02, ++ GLAMO_REG_CMDQ_LEN = 0x04, ++ GLAMO_REG_CMDQ_WRITE_ADDRL = 0x06, ++ GLAMO_REG_CMDQ_WRITE_ADDRH = 0x08, ++ GLAMO_REG_CMDQ_FLIP = 0x0a, ++ GLAMO_REG_CMDQ_CONTROL = 0x0c, ++ GLAMO_REG_CMDQ_READ_ADDRL = 0x0e, ++ GLAMO_REG_CMDQ_READ_ADDRH = 0x10, ++ GLAMO_REG_CMDQ_STATUS = 0x12, ++}; ++ ++#define REG_2D(x) (GLAMO_REGOFS_2D+(x)) ++ ++enum glamo_register_2d { ++ GLAMO_REG_2D_DST_X = REG_2D(0x0a), ++ GLAMO_REG_2D_COMMAND1 = REG_2D(0x3a), ++ GLAMO_REG_2D_STATUS = REG_2D(0x42), ++ GLAMO_REG_2D_ID1 = REG_2D(0x44), ++ GLAMO_REG_2D_ID2 = REG_2D(0x46), ++ GLAMO_REG_2D_ID3 = REG_2D(0x48), ++}; ++ + #endif /* _GLAMO_REGS_H */ +diff --git a/include/linux/mfd/glamo.h b/include/linux/mfd/glamo.h +index 529d4f0..ea91a06 100644 +--- a/include/linux/mfd/glamo.h ++++ b/include/linux/mfd/glamo.h +@@ -41,12 +41,9 @@ enum glamo_engine { + GLAMO_ENGINE_RISC = 11, + GLAMO_ENGINE_MICROP1_MPEG_ENC = 12, + GLAMO_ENGINE_MICROP1_MPEG_DEC = 13, +-#if 0 +- GLAMO_ENGINE_H264_DEC = 14, +- GLAMO_ENGINE_RISC1 = 15, +- GLAMO_ENGINE_SPI = 16, +-#endif + __NUM_GLAMO_ENGINES + }; + ++#define GLAMO_ENGINE_ALL (__NUM_GLAMO_ENGINES) ++ + #endif +-- +1.6.5.3 + |